1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
2 * Mupen64plus - new_dynarec.c *
3 * Copyright (C) 2009-2011 Ari64 *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
22 #include <stdint.h> //include for uint64_t
27 #include <libkern/OSCacheControl.h>
30 #include <3ds_utils.h>
37 #include "new_dynarec_config.h"
38 #include "../psxhle.h"
39 #include "../psxinterpreter.h"
41 #include "emu_if.h" // emulator interface
42 #include "linkage_offsets.h"
43 #include "compiler_features.h"
44 #include "arm_features.h"
47 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
50 #define min(a, b) ((b) < (a) ? (b) : (a))
53 #define max(a, b) ((b) > (a) ? (b) : (a))
58 //#define REGMAP_PRINT // with DISASM only
63 #define assem_debug printf
65 #define assem_debug(...)
67 //#define inv_debug printf
68 #define inv_debug(...)
71 #include "assem_x86.h"
74 #include "assem_x64.h"
77 #include "assem_arm.h"
80 #include "assem_arm64.h"
83 #define RAM_SIZE 0x200000
85 #define MAX_OUTPUT_BLOCK_SIZE 262144
86 #define EXPIRITY_OFFSET (MAX_OUTPUT_BLOCK_SIZE * 2)
87 #define PAGE_COUNT 1024
89 #if defined(HAVE_CONDITIONAL_CALL) && !defined(DESTRUCTIVE_SHIFT)
90 #define INVALIDATE_USE_COND_CALL
94 // apparently Vita has a 16MB limit, so either we cut tc in half,
95 // or use this hack (it's a hack because tc size was designed to be power-of-2)
96 #define TC_REDUCE_BYTES 4096
98 #define TC_REDUCE_BYTES 0
103 struct tramp_insns ops[2048 / sizeof(struct tramp_insns)];
104 const void *f[2048 / sizeof(void *)];
109 u_char translation_cache[(1 << TARGET_SIZE_2) - TC_REDUCE_BYTES];
110 struct ndrc_tramp tramp;
113 #ifdef BASE_ADDR_DYNAMIC
114 static struct ndrc_mem *ndrc;
116 static struct ndrc_mem ndrc_ __attribute__((aligned(4096)));
117 static struct ndrc_mem *ndrc = &ndrc_;
119 #ifdef TC_WRITE_OFFSET
121 # include <sys/types.h>
122 # include <sys/stat.h>
126 static long ndrc_write_ofs;
127 #define NDRC_WRITE_OFFSET(x) (void *)((char *)(x) + ndrc_write_ofs)
129 #define NDRC_WRITE_OFFSET(x) (x)
152 // regmap_pre[i] - regs before [i] insn starts; dirty things here that
153 // don't match .regmap will be written back
154 // [i].regmap_entry - regs that must be set up if someone jumps here
155 // [i].regmap - regs [i] insn will read/(over)write
156 // branch_regs[i].* - same as above but for branches, takes delay slot into account
159 signed char regmap_entry[HOST_REGS];
160 signed char regmap[HOST_REGS];
163 u_int wasconst; // before; for example 'lw r2, (r2)' wasconst is true
164 u_int isconst; // ... but isconst is false when r2 is known (hr)
165 u_int loadedconst; // host regs that have constants loaded
166 u_int noevict; // can't evict this hr (alloced by current op)
167 //u_int waswritten; // MIPS regs that were used as store base before
198 struct block_info *next;
201 u_int start; // vaddr of the block start
202 u_int len; // of the whole block source
207 u_char inv_near_misses;
225 static struct decoded_insn
228 u_char opcode; // bits 31-26
229 u_char opcode2; // (depends on opcode)
242 u_char is_delay_load:1; // is_load + MFC/CFC
243 u_char is_exception:1; // unconditional, also interp. fallback
244 u_char may_except:1; // might generate an exception
245 u_char ls_type:2; // load/store type (ls_width_type)
249 LS_8 = 0, LS_16, LS_32, LS_LR
252 static struct compile_info
257 signed char min_free_regs;
259 signed char reserved[2];
263 static char invalid_code[0x100000];
264 static struct ht_entry hash_table[65536];
265 static struct block_info *blocks[PAGE_COUNT];
266 static struct jump_info *jumps[PAGE_COUNT];
268 static u_int *source;
269 static uint64_t gte_rs[MAXBLOCK]; // gte: 32 data and 32 ctl regs
270 static uint64_t gte_rt[MAXBLOCK];
271 static uint64_t gte_unneeded[MAXBLOCK];
272 static u_int smrv[32]; // speculated MIPS register values
273 static u_int smrv_strong; // mask or regs that are likely to have correct values
274 static u_int smrv_weak; // same, but somewhat less likely
275 static u_int smrv_strong_next; // same, but after current insn executes
276 static u_int smrv_weak_next;
277 static uint64_t unneeded_reg[MAXBLOCK];
278 static uint64_t branch_unneeded_reg[MAXBLOCK];
279 // see 'struct regstat' for a description
280 static signed char regmap_pre[MAXBLOCK][HOST_REGS];
281 // contains 'real' consts at [i] insn, but may differ from what's actually
282 // loaded in host reg as 'final' value is always loaded, see get_final_value()
283 static uint32_t current_constmap[HOST_REGS];
284 static uint32_t constmap[MAXBLOCK][HOST_REGS];
285 static struct regstat regs[MAXBLOCK];
286 static struct regstat branch_regs[MAXBLOCK];
288 static void *instr_addr[MAXBLOCK];
289 static struct link_entry link_addr[MAXBLOCK];
290 static int linkcount;
291 static struct code_stub stubs[MAXBLOCK*3];
292 static int stubcount;
293 static u_int literals[1024][2];
294 static int literalcount;
295 static int is_delayslot;
296 static char shadow[1048576] __attribute__((aligned(16)));
298 static u_int expirep;
299 static u_int stop_after_jal;
300 static u_int f1_hack;
302 static int stat_bc_direct;
303 static int stat_bc_pre;
304 static int stat_bc_restore;
305 static int stat_ht_lookups;
306 static int stat_jump_in_lookups;
307 static int stat_restore_tries;
308 static int stat_restore_compares;
309 static int stat_inv_addr_calls;
310 static int stat_inv_hits;
311 static int stat_blocks;
312 static int stat_links;
313 #define stat_inc(s) s++
314 #define stat_dec(s) s--
315 #define stat_clear(s) s = 0
319 #define stat_clear(s)
322 int new_dynarec_hacks;
323 int new_dynarec_hacks_pergame;
324 int new_dynarec_hacks_old;
325 int new_dynarec_did_compile;
327 #define HACK_ENABLED(x) ((new_dynarec_hacks | new_dynarec_hacks_pergame) & (x))
329 extern int cycle_count; // ... until end of the timeslice, counts -N -> 0 (CCREG)
330 extern int last_count; // last absolute target, often = next_interupt
332 extern int pending_exception;
333 extern int branch_target;
334 extern uintptr_t ram_offset;
335 extern uintptr_t mini_ht[32][2];
337 /* registers that may be allocated */
339 #define LOREG 32 // lo
340 #define HIREG 33 // hi
341 //#define FSREG 34 // FPU status (FCSR)
342 //#define CSREG 35 // Coprocessor status
343 #define CCREG 36 // Cycle count
344 #define INVCP 37 // Pointer to invalid_code
345 //#define MMREG 38 // Pointer to memory_map
346 #define ROREG 39 // ram offset (if psxM != 0x80000000)
348 #define FTEMP 40 // Load/store temporary register (was fpu)
349 #define PTEMP 41 // Prefetch temporary register
350 //#define TLREG 42 // TLB mapping offset
351 #define RHASH 43 // Return address hash
352 #define RHTBL 44 // Return address hash table address
353 #define RTEMP 45 // JR/JALR address register
355 #define AGEN1 46 // Address generation temporary register (pass5b_preallocate2)
356 //#define AGEN2 47 // Address generation temporary register
358 /* instruction types */
359 #define NOP 0 // No operation
360 #define LOAD 1 // Load
361 #define STORE 2 // Store
362 #define LOADLR 3 // Unaligned load
363 #define STORELR 4 // Unaligned store
364 #define MOV 5 // Move (hi/lo only)
365 #define ALU 6 // Arithmetic/logic
366 #define MULTDIV 7 // Multiply/divide
367 #define SHIFT 8 // Shift by register
368 #define SHIFTIMM 9// Shift by immediate
369 #define IMM16 10 // 16-bit immediate
370 #define RJUMP 11 // Unconditional jump to register
371 #define UJUMP 12 // Unconditional jump
372 #define CJUMP 13 // Conditional branch (BEQ/BNE/BGTZ/BLEZ)
373 #define SJUMP 14 // Conditional branch (regimm format)
374 #define COP0 15 // Coprocessor 0
376 #define SYSCALL 22// SYSCALL,BREAK
377 #define OTHER 23 // Other/unknown - do nothing
378 #define HLECALL 26// PCSX fake opcodes for HLE
379 #define COP2 27 // Coprocessor 2 move
380 #define C2LS 28 // Coprocessor 2 load/store
381 #define C2OP 29 // Coprocessor 2 operation
382 #define INTCALL 30// Call interpreter to handle rare corner cases
388 #define DJT_1 (void *)1l // no function, just a label in assem_debug log
389 #define DJT_2 (void *)2l
394 void jump_syscall (u_int u0, u_int u1, u_int pc);
395 void jump_syscall_ds(u_int u0, u_int u1, u_int pc);
396 void jump_break (u_int u0, u_int u1, u_int pc);
397 void jump_break_ds(u_int u0, u_int u1, u_int pc);
398 void jump_overflow (u_int u0, u_int u1, u_int pc);
399 void jump_overflow_ds(u_int u0, u_int u1, u_int pc);
400 void jump_addrerror (u_int cause, u_int addr, u_int pc);
401 void jump_addrerror_ds(u_int cause, u_int addr, u_int pc);
402 void jump_to_new_pc();
403 void call_gteStall();
404 void new_dyna_leave();
406 void *ndrc_get_addr_ht_param(u_int vaddr, int can_compile);
407 void *ndrc_get_addr_ht(u_int vaddr);
408 void ndrc_add_jump_out(u_int vaddr, void *src);
409 void ndrc_write_invalidate_one(u_int addr);
410 static void ndrc_write_invalidate_many(u_int addr, u_int end);
412 static int new_recompile_block(u_int addr);
413 static void invalidate_block(struct block_info *block);
414 static void exception_assemble(int i, const struct regstat *i_regs, int ccadj_);
416 // Needed by assembler
417 static void wb_register(signed char r, const signed char regmap[], u_int dirty);
418 static void wb_dirtys(const signed char i_regmap[], u_int i_dirty);
419 static void wb_needed_dirtys(const signed char i_regmap[], u_int i_dirty, int addr);
420 static void load_all_regs(const signed char i_regmap[]);
421 static void load_needed_regs(const signed char i_regmap[], const signed char next_regmap[]);
422 static void load_regs_entry(int t);
423 static void load_all_consts(const signed char regmap[], u_int dirty, int i);
424 static u_int get_host_reglist(const signed char *regmap);
426 static int get_final_value(int hr, int i, u_int *value);
427 static void add_stub(enum stub_type type, void *addr, void *retaddr,
428 u_int a, uintptr_t b, uintptr_t c, u_int d, u_int e);
429 static void add_stub_r(enum stub_type type, void *addr, void *retaddr,
430 int i, int addr_reg, const struct regstat *i_regs, int ccadj, u_int reglist);
431 static void add_to_linker(void *addr, u_int target, int ext);
432 static void *get_direct_memhandler(void *table, u_int addr,
433 enum stub_type type, uintptr_t *addr_host);
434 static void cop2_do_stall_check(u_int op, int i, const struct regstat *i_regs, u_int reglist);
435 static void pass_args(int a0, int a1);
436 static void emit_far_jump(const void *f);
437 static void emit_far_call(const void *f);
440 #include <psp2/kernel/sysmem.h>
442 // note: this interacts with RetroArch's Vita bootstrap code: bootstrap/vita/sbrk.c
443 extern int getVMBlock();
444 int _newlib_vm_size_user = sizeof(*ndrc);
447 static void mprotect_w_x(void *start, void *end, int is_x)
451 // *Open* enables write on all memory that was
452 // allocated by sceKernelAllocMemBlockForVM()?
454 sceKernelCloseVMDomain();
456 sceKernelOpenVMDomain();
457 #elif defined(HAVE_LIBNX)
459 // check to avoid the full flush in jitTransitionToExecutable()
460 if (g_jit.type != JitType_CodeMemory) {
462 rc = jitTransitionToExecutable(&g_jit);
464 rc = jitTransitionToWritable(&g_jit);
466 ;//SysPrintf("jitTransition %d %08x\n", is_x, rc);
468 #elif defined(TC_WRITE_OFFSET)
469 // separated rx and rw areas are always available
471 u_long mstart = (u_long)start & ~4095ul;
472 u_long mend = (u_long)end;
473 if (mprotect((void *)mstart, mend - mstart,
474 PROT_READ | (is_x ? PROT_EXEC : PROT_WRITE)) != 0)
475 SysPrintf("mprotect(%c) failed: %s\n", is_x ? 'x' : 'w', strerror(errno));
480 static void start_tcache_write(void *start, void *end)
482 mprotect_w_x(start, end, 0);
485 static void end_tcache_write(void *start, void *end)
487 #if defined(__arm__) || defined(__aarch64__)
488 size_t len = (char *)end - (char *)start;
489 #if defined(__BLACKBERRY_QNX__)
490 msync(start, len, MS_SYNC | MS_CACHE_ONLY | MS_INVALIDATE_ICACHE);
491 #elif defined(__MACH__)
492 sys_cache_control(kCacheFunctionPrepareForExecution, start, len);
494 sceKernelSyncVMDomain(sceBlock, start, len);
496 ctr_flush_invalidate_cache();
497 #elif defined(HAVE_LIBNX)
498 if (g_jit.type == JitType_CodeMemory) {
499 armDCacheClean(start, len);
500 armICacheInvalidate((char *)start - ndrc_write_ofs, len);
501 // as of v4.2.1 libnx lacks isb
502 __asm__ volatile("isb" ::: "memory");
504 #elif defined(__aarch64__)
505 // as of 2021, __clear_cache() is still broken on arm64
506 // so here is a custom one :(
507 clear_cache_arm64(start, end);
509 __clear_cache(start, end);
514 mprotect_w_x(start, end, 1);
517 static void *start_block(void)
519 u_char *end = out + MAX_OUTPUT_BLOCK_SIZE;
520 if (end > ndrc->translation_cache + sizeof(ndrc->translation_cache))
521 end = ndrc->translation_cache + sizeof(ndrc->translation_cache);
522 start_tcache_write(NDRC_WRITE_OFFSET(out), NDRC_WRITE_OFFSET(end));
526 static void end_block(void *start)
528 end_tcache_write(NDRC_WRITE_OFFSET(start), NDRC_WRITE_OFFSET(out));
531 #ifdef NDRC_CACHE_FLUSH_ALL
533 static int needs_clear_cache;
535 static void mark_clear_cache(void *target)
537 if (!needs_clear_cache) {
538 start_tcache_write(NDRC_WRITE_OFFSET(ndrc), NDRC_WRITE_OFFSET(ndrc + 1));
539 needs_clear_cache = 1;
543 static void do_clear_cache(void)
545 if (needs_clear_cache) {
546 end_tcache_write(NDRC_WRITE_OFFSET(ndrc), NDRC_WRITE_OFFSET(ndrc + 1));
547 needs_clear_cache = 0;
553 // also takes care of w^x mappings when patching code
554 static u_int needs_clear_cache[1<<(TARGET_SIZE_2-17)];
556 static void mark_clear_cache(void *target)
558 uintptr_t offset = (u_char *)target - ndrc->translation_cache;
559 u_int mask = 1u << ((offset >> 12) & 31);
560 if (!(needs_clear_cache[offset >> 17] & mask)) {
561 char *start = (char *)NDRC_WRITE_OFFSET((uintptr_t)target & ~4095l);
562 start_tcache_write(start, start + 4095);
563 needs_clear_cache[offset >> 17] |= mask;
567 // Clearing the cache is rather slow on ARM Linux, so mark the areas
568 // that need to be cleared, and then only clear these areas once.
569 static void do_clear_cache(void)
572 for (i = 0; i < (1<<(TARGET_SIZE_2-17)); i++)
574 u_int bitmap = needs_clear_cache[i];
577 for (j = 0; j < 32; j++)
580 if (!(bitmap & (1u << j)))
583 start = ndrc->translation_cache + i*131072 + j*4096;
585 for (j++; j < 32; j++) {
586 if (!(bitmap & (1u << j)))
590 end_tcache_write(NDRC_WRITE_OFFSET(start), NDRC_WRITE_OFFSET(end));
592 needs_clear_cache[i] = 0;
596 #endif // NDRC_CACHE_FLUSH_ALL
598 #define NO_CYCLE_PENALTY_THR 12
600 int cycle_multiplier_old;
601 static int cycle_multiplier_active;
603 static int CLOCK_ADJUST(int x)
605 int m = cycle_multiplier_active;
606 int s = (x >> 31) | 1;
607 return (x * m + s * 50) / 100;
610 static int ds_writes_rjump_rs(int i)
612 return dops[i].rs1 != 0
613 && (dops[i].rs1 == dops[i+1].rt1 || dops[i].rs1 == dops[i+1].rt2
614 || dops[i].rs1 == dops[i].rt1); // overwrites itself - same effect
617 // psx addr mirror masking (for invalidation)
618 static u_int pmmask(u_int vaddr)
620 vaddr &= ~0xe0000000;
621 if (vaddr < 0x01000000)
622 vaddr &= ~0x00e00000; // RAM mirrors
626 static u_int get_page(u_int vaddr)
628 u_int page = pmmask(vaddr) >> 12;
629 if (page >= PAGE_COUNT / 2)
630 page = PAGE_COUNT / 2 + (page & (PAGE_COUNT / 2 - 1));
634 // get a page for looking for a block that has vaddr
635 // (needed because the block may start in previous page)
636 static u_int get_page_prev(u_int vaddr)
638 assert(MAXBLOCK <= (1 << 12));
639 u_int page = get_page(vaddr);
645 static struct ht_entry *hash_table_get(u_int vaddr)
647 return &hash_table[((vaddr>>16)^vaddr)&0xFFFF];
650 static void hash_table_add(u_int vaddr, void *tcaddr)
652 struct ht_entry *ht_bin = hash_table_get(vaddr);
654 ht_bin->vaddr[1] = ht_bin->vaddr[0];
655 ht_bin->tcaddr[1] = ht_bin->tcaddr[0];
656 ht_bin->vaddr[0] = vaddr;
657 ht_bin->tcaddr[0] = tcaddr;
660 static void hash_table_remove(int vaddr)
662 //printf("remove hash: %x\n",vaddr);
663 struct ht_entry *ht_bin = hash_table_get(vaddr);
664 if (ht_bin->vaddr[1] == vaddr) {
665 ht_bin->vaddr[1] = -1;
666 ht_bin->tcaddr[1] = NULL;
668 if (ht_bin->vaddr[0] == vaddr) {
669 ht_bin->vaddr[0] = ht_bin->vaddr[1];
670 ht_bin->tcaddr[0] = ht_bin->tcaddr[1];
671 ht_bin->vaddr[1] = -1;
672 ht_bin->tcaddr[1] = NULL;
676 static void mark_invalid_code(u_int vaddr, u_int len, char invalid)
678 u_int vaddr_m = vaddr & 0x1fffffff;
680 for (i = vaddr_m & ~0xfff; i < vaddr_m + len; i += 0x1000) {
681 // ram mirrors, but should not hurt bios
682 for (j = 0; j < 0x800000; j += 0x200000) {
683 invalid_code[(i|j) >> 12] =
684 invalid_code[(i|j|0x80000000u) >> 12] =
685 invalid_code[(i|j|0xa0000000u) >> 12] = invalid;
688 if (!invalid && vaddr + len > inv_code_start && vaddr <= inv_code_end)
689 inv_code_start = inv_code_end = ~0;
692 static int doesnt_expire_soon(u_char *tcaddr)
694 u_int diff = (u_int)(tcaddr - out) & ((1u << TARGET_SIZE_2) - 1u);
695 return diff > EXPIRITY_OFFSET + MAX_OUTPUT_BLOCK_SIZE;
698 static unused void check_for_block_changes(u_int start, u_int end)
700 u_int start_page = get_page_prev(start);
701 u_int end_page = get_page(end - 1);
704 for (page = start_page; page <= end_page; page++) {
705 struct block_info *block;
706 for (block = blocks[page]; block != NULL; block = block->next) {
709 if (memcmp(block->source, block->copy, block->len)) {
710 printf("bad block %08x-%08x %016llx %016llx @%08x\n",
711 block->start, block->start + block->len,
712 *(long long *)block->source, *(long long *)block->copy, psxRegs.pc);
720 static void *try_restore_block(u_int vaddr, u_int start_page, u_int end_page)
722 void *found_clean = NULL;
725 stat_inc(stat_restore_tries);
726 for (page = start_page; page <= end_page; page++) {
727 struct block_info *block;
728 for (block = blocks[page]; block != NULL; block = block->next) {
729 if (vaddr < block->start)
731 if (!block->is_dirty || vaddr >= block->start + block->len)
733 for (i = 0; i < block->jump_in_cnt; i++)
734 if (block->jump_in[i].vaddr == vaddr)
736 if (i == block->jump_in_cnt)
738 assert(block->source && block->copy);
739 stat_inc(stat_restore_compares);
740 if (memcmp(block->source, block->copy, block->len))
743 block->is_dirty = block->inv_near_misses = 0;
744 found_clean = block->jump_in[i].addr;
745 hash_table_add(vaddr, found_clean);
746 mark_invalid_code(block->start, block->len, 0);
747 stat_inc(stat_bc_restore);
748 inv_debug("INV: restored %08x %p (%d)\n", vaddr, found_clean, block->jump_in_cnt);
755 // this doesn't normally happen
756 static noinline u_int generate_exception(u_int pc)
758 //if (execBreakCheck(&psxRegs, pc))
759 // return psxRegs.pc;
761 // generate an address or bus error
762 psxRegs.CP0.n.Cause &= 0x300;
763 psxRegs.CP0.n.EPC = pc;
765 psxRegs.CP0.n.Cause |= R3000E_AdEL << 2;
766 psxRegs.CP0.n.BadVAddr = pc;
771 psxRegs.CP0.n.Cause |= R3000E_IBE << 2;
772 return (psxRegs.pc = 0x80000080);
775 // Get address from virtual address
776 // This is called from the recompiled JR/JALR instructions
777 static void noinline *get_addr(u_int vaddr, int can_compile)
779 u_int start_page = get_page_prev(vaddr);
780 u_int i, page, end_page = get_page(vaddr);
781 void *found_clean = NULL;
783 stat_inc(stat_jump_in_lookups);
784 for (page = start_page; page <= end_page; page++) {
785 const struct block_info *block;
786 for (block = blocks[page]; block != NULL; block = block->next) {
787 if (vaddr < block->start)
789 if (block->is_dirty || vaddr >= block->start + block->len)
791 for (i = 0; i < block->jump_in_cnt; i++)
792 if (block->jump_in[i].vaddr == vaddr)
794 if (i == block->jump_in_cnt)
796 found_clean = block->jump_in[i].addr;
797 hash_table_add(vaddr, found_clean);
801 found_clean = try_restore_block(vaddr, start_page, end_page);
808 int r = new_recompile_block(vaddr);
810 return ndrc_get_addr_ht(vaddr);
812 return ndrc_get_addr_ht(generate_exception(vaddr));
815 // Look up address in hash table first
816 void *ndrc_get_addr_ht_param(u_int vaddr, int can_compile)
818 //check_for_block_changes(vaddr, vaddr + MAXBLOCK);
819 const struct ht_entry *ht_bin = hash_table_get(vaddr);
820 u_int vaddr_a = vaddr & ~3;
821 stat_inc(stat_ht_lookups);
822 if (ht_bin->vaddr[0] == vaddr_a) return ht_bin->tcaddr[0];
823 if (ht_bin->vaddr[1] == vaddr_a) return ht_bin->tcaddr[1];
824 return get_addr(vaddr, can_compile);
827 void *ndrc_get_addr_ht(u_int vaddr)
829 return ndrc_get_addr_ht_param(vaddr, 1);
832 static void clear_all_regs(signed char regmap[])
834 memset(regmap, -1, sizeof(regmap[0]) * HOST_REGS);
837 // get_reg: get allocated host reg from mips reg
838 // returns -1 if no such mips reg was allocated
839 #if defined(__arm__) && defined(HAVE_ARMV6) && HOST_REGS == 13 && EXCLUDE_REG == 11
841 extern signed char get_reg(const signed char regmap[], signed char r);
845 static signed char get_reg(const signed char regmap[], signed char r)
848 for (hr = 0; hr < HOST_REGS; hr++) {
849 if (hr == EXCLUDE_REG)
859 // get reg suitable for writing
860 static signed char get_reg_w(const signed char regmap[], signed char r)
862 return r == 0 ? -1 : get_reg(regmap, r);
865 // get reg as mask bit (1 << hr)
866 static u_int get_regm(const signed char regmap[], signed char r)
868 return (1u << (get_reg(regmap, r) & 31)) & ~(1u << 31);
871 static signed char get_reg_temp(const signed char regmap[])
874 for (hr = 0; hr < HOST_REGS; hr++) {
875 if (hr == EXCLUDE_REG)
877 if (regmap[hr] == (signed char)-1)
883 // Find a register that is available for two consecutive cycles
884 static signed char get_reg2(signed char regmap1[], const signed char regmap2[], int r)
887 for (hr=0;hr<HOST_REGS;hr++) if(hr!=EXCLUDE_REG&®map1[hr]==r&®map2[hr]==r) return hr;
891 // reverse reg map: mips -> host
892 #define RRMAP_SIZE 64
893 static void make_rregs(const signed char regmap[], signed char rrmap[RRMAP_SIZE],
894 u_int *regs_can_change)
896 u_int r, hr, hr_can_change = 0;
897 memset(rrmap, -1, RRMAP_SIZE);
898 for (hr = 0; hr < HOST_REGS; )
901 rrmap[r & (RRMAP_SIZE - 1)] = hr;
902 // only add mips $1-$31+$lo, others shifted out
903 hr_can_change |= (uint64_t)1 << (hr + ((r - 1) & 32));
905 if (hr == EXCLUDE_REG)
908 hr_can_change |= 1u << (rrmap[33] & 31);
909 hr_can_change |= 1u << (rrmap[CCREG] & 31);
910 hr_can_change &= ~(1u << 31);
911 *regs_can_change = hr_can_change;
914 // same as get_reg, but takes rrmap
915 static signed char get_rreg(signed char rrmap[RRMAP_SIZE], signed char r)
917 assert(0 <= r && r < RRMAP_SIZE);
921 static int count_free_regs(const signed char regmap[])
925 for(hr=0;hr<HOST_REGS;hr++)
927 if(hr!=EXCLUDE_REG) {
928 if(regmap[hr]<0) count++;
934 static void dirty_reg(struct regstat *cur, signed char reg)
938 hr = get_reg(cur->regmap, reg);
943 static void set_const(struct regstat *cur, signed char reg, uint32_t value)
947 hr = get_reg(cur->regmap, reg);
949 cur->isconst |= 1<<hr;
950 current_constmap[hr] = value;
954 static void clear_const(struct regstat *cur, signed char reg)
958 hr = get_reg(cur->regmap, reg);
960 cur->isconst &= ~(1<<hr);
963 static int is_const(const struct regstat *cur, signed char reg)
966 if (reg < 0) return 0;
968 hr = get_reg(cur->regmap, reg);
970 return (cur->isconst>>hr)&1;
974 static uint32_t get_const(const struct regstat *cur, signed char reg)
978 hr = get_reg(cur->regmap, reg);
980 return current_constmap[hr];
982 SysPrintf("Unknown constant in r%d\n", reg);
986 // Least soon needed registers
987 // Look at the next ten instructions and see which registers
988 // will be used. Try not to reallocate these.
989 static void lsn(u_char hsn[], int i)
999 if (dops[i+j].is_ujump)
1001 // Don't go past an unconditonal jump
1008 if(dops[i+j].rs1) hsn[dops[i+j].rs1]=j;
1009 if(dops[i+j].rs2) hsn[dops[i+j].rs2]=j;
1010 if(dops[i+j].rt1) hsn[dops[i+j].rt1]=j;
1011 if(dops[i+j].rt2) hsn[dops[i+j].rt2]=j;
1012 if(dops[i+j].itype==STORE || dops[i+j].itype==STORELR) {
1013 // Stores can allocate zero
1014 hsn[dops[i+j].rs1]=j;
1015 hsn[dops[i+j].rs2]=j;
1017 if (ram_offset && (dops[i+j].is_load || dops[i+j].is_store))
1019 // On some architectures stores need invc_ptr
1020 #if defined(HOST_IMM8)
1021 if (dops[i+j].is_store)
1024 if(i+j>=0&&(dops[i+j].itype==UJUMP||dops[i+j].itype==CJUMP||dops[i+j].itype==SJUMP))
1032 if(cinfo[i+b].ba>=start && cinfo[i+b].ba<(start+slen*4))
1034 // Follow first branch
1035 int t=(cinfo[i+b].ba-start)>>2;
1036 j=7-b;if(t+j>=slen) j=slen-t-1;
1039 if(dops[t+j].rs1) if(hsn[dops[t+j].rs1]>j+b+2) hsn[dops[t+j].rs1]=j+b+2;
1040 if(dops[t+j].rs2) if(hsn[dops[t+j].rs2]>j+b+2) hsn[dops[t+j].rs2]=j+b+2;
1041 //if(dops[t+j].rt1) if(hsn[dops[t+j].rt1]>j+b+2) hsn[dops[t+j].rt1]=j+b+2;
1042 //if(dops[t+j].rt2) if(hsn[dops[t+j].rt2]>j+b+2) hsn[dops[t+j].rt2]=j+b+2;
1045 // TODO: preferred register based on backward branch
1047 // Delay slot should preferably not overwrite branch conditions or cycle count
1048 if (i > 0 && dops[i-1].is_jump) {
1049 if(dops[i-1].rs1) if(hsn[dops[i-1].rs1]>1) hsn[dops[i-1].rs1]=1;
1050 if(dops[i-1].rs2) if(hsn[dops[i-1].rs2]>1) hsn[dops[i-1].rs2]=1;
1052 // ...or hash tables
1056 // Coprocessor load/store needs FTEMP, even if not declared
1057 if(dops[i].itype==C2LS) {
1060 // Load/store L/R also uses FTEMP as a temporary register
1061 if (dops[i].itype == LOADLR || dops[i].itype == STORELR) {
1064 // Don't remove the miniht registers
1065 if(dops[i].itype==UJUMP||dops[i].itype==RJUMP)
1072 // We only want to allocate registers if we're going to use them again soon
1073 static int needed_again(int r, int i)
1079 if (i > 0 && dops[i-1].is_ujump)
1081 if(cinfo[i-1].ba<start || cinfo[i-1].ba>start+slen*4-4)
1082 return 0; // Don't need any registers if exiting the block
1090 if (dops[i+j].is_ujump)
1092 // Don't go past an unconditonal jump
1096 if (dops[i+j].is_exception)
1103 if(dops[i+j].rs1==r) rn=j;
1104 if(dops[i+j].rs2==r) rn=j;
1105 if((unneeded_reg[i+j]>>r)&1) rn=10;
1106 if(i+j>=0&&(dops[i+j].itype==UJUMP||dops[i+j].itype==CJUMP||dops[i+j].itype==SJUMP))
1116 // Try to match register allocations at the end of a loop with those
1118 static int loop_reg(int i, int r, int hr)
1127 if (dops[i+j].is_ujump)
1129 // Don't go past an unconditonal jump
1136 if(dops[i-1].itype==UJUMP||dops[i-1].itype==CJUMP||dops[i-1].itype==SJUMP)
1142 if((unneeded_reg[i+k]>>r)&1) return hr;
1143 if(i+k>=0&&(dops[i+k].itype==UJUMP||dops[i+k].itype==CJUMP||dops[i+k].itype==SJUMP))
1145 if(cinfo[i+k].ba>=start && cinfo[i+k].ba<(start+i*4))
1147 int t=(cinfo[i+k].ba-start)>>2;
1148 int reg=get_reg(regs[t].regmap_entry,r);
1149 if(reg>=0) return reg;
1150 //reg=get_reg(regs[t+1].regmap_entry,r);
1151 //if(reg>=0) return reg;
1159 // Allocate every register, preserving source/target regs
1160 static void alloc_all(struct regstat *cur,int i)
1164 for(hr=0;hr<HOST_REGS;hr++) {
1165 if(hr!=EXCLUDE_REG) {
1166 if((cur->regmap[hr]!=dops[i].rs1)&&(cur->regmap[hr]!=dops[i].rs2)&&
1167 (cur->regmap[hr]!=dops[i].rt1)&&(cur->regmap[hr]!=dops[i].rt2))
1170 cur->dirty&=~(1<<hr);
1173 if(cur->regmap[hr]==0)
1176 cur->dirty&=~(1<<hr);
1183 static int host_tempreg_in_use;
1185 static void host_tempreg_acquire(void)
1187 assert(!host_tempreg_in_use);
1188 host_tempreg_in_use = 1;
1191 static void host_tempreg_release(void)
1193 host_tempreg_in_use = 0;
1196 static void host_tempreg_acquire(void) {}
1197 static void host_tempreg_release(void) {}
1201 extern void gen_interupt();
1202 extern void do_insn_cmp();
1203 #define FUNCNAME(f) { f, " " #f }
1204 static const struct {
1207 } function_names[] = {
1208 FUNCNAME(cc_interrupt),
1209 FUNCNAME(gen_interupt),
1210 FUNCNAME(ndrc_get_addr_ht),
1211 FUNCNAME(jump_handler_read8),
1212 FUNCNAME(jump_handler_read16),
1213 FUNCNAME(jump_handler_read32),
1214 FUNCNAME(jump_handler_write8),
1215 FUNCNAME(jump_handler_write16),
1216 FUNCNAME(jump_handler_write32),
1217 FUNCNAME(ndrc_write_invalidate_one),
1218 FUNCNAME(ndrc_write_invalidate_many),
1219 FUNCNAME(jump_to_new_pc),
1220 FUNCNAME(jump_break),
1221 FUNCNAME(jump_break_ds),
1222 FUNCNAME(jump_syscall),
1223 FUNCNAME(jump_syscall_ds),
1224 FUNCNAME(jump_overflow),
1225 FUNCNAME(jump_overflow_ds),
1226 FUNCNAME(jump_addrerror),
1227 FUNCNAME(jump_addrerror_ds),
1228 FUNCNAME(call_gteStall),
1229 FUNCNAME(new_dyna_leave),
1230 FUNCNAME(pcsx_mtc0),
1231 FUNCNAME(pcsx_mtc0_ds),
1234 FUNCNAME(do_memhandler_pre),
1235 FUNCNAME(do_memhandler_post),
1239 FUNCNAME(do_insn_cmp_arm64),
1241 FUNCNAME(do_insn_cmp),
1246 static const char *func_name(const void *a)
1249 for (i = 0; i < sizeof(function_names)/sizeof(function_names[0]); i++)
1250 if (function_names[i].addr == a)
1251 return function_names[i].name;
1255 static const char *fpofs_name(u_int ofs)
1257 u_int *p = (u_int *)&dynarec_local + ofs/sizeof(u_int);
1258 static char buf[64];
1260 #define ofscase(x) case LO_##x: return " ; " #x
1261 ofscase(next_interupt);
1262 ofscase(cycle_count);
1263 ofscase(last_count);
1264 ofscase(pending_exception);
1275 ofscase(ram_offset);
1279 if (psxRegs.GPR.r <= p && p < &psxRegs.GPR.r[32])
1280 snprintf(buf, sizeof(buf), " ; r%d", (int)(p - psxRegs.GPR.r));
1281 else if (psxRegs.CP0.r <= p && p < &psxRegs.CP0.r[32])
1282 snprintf(buf, sizeof(buf), " ; cp0 $%d", (int)(p - psxRegs.CP0.r));
1283 else if (psxRegs.CP2D.r <= p && p < &psxRegs.CP2D.r[32])
1284 snprintf(buf, sizeof(buf), " ; cp2d $%d", (int)(p - psxRegs.CP2D.r));
1285 else if (psxRegs.CP2C.r <= p && p < &psxRegs.CP2C.r[32])
1286 snprintf(buf, sizeof(buf), " ; cp2c $%d", (int)(p - psxRegs.CP2C.r));
1290 #define func_name(x) ""
1291 #define fpofs_name(x) ""
1295 #include "assem_x86.c"
1298 #include "assem_x64.c"
1301 #include "assem_arm.c"
1304 #include "assem_arm64.c"
1307 static void *get_trampoline(const void *f)
1309 struct ndrc_tramp *tramp = NDRC_WRITE_OFFSET(&ndrc->tramp);
1312 for (i = 0; i < ARRAY_SIZE(tramp->f); i++) {
1313 if (tramp->f[i] == f || tramp->f[i] == NULL)
1316 if (i == ARRAY_SIZE(tramp->f)) {
1317 SysPrintf("trampoline table is full, last func %p\n", f);
1320 if (tramp->f[i] == NULL) {
1321 start_tcache_write(&tramp->f[i], &tramp->f[i + 1]);
1323 end_tcache_write(&tramp->f[i], &tramp->f[i + 1]);
1325 // invalidate the RX mirror (unsure if necessary, but just in case...)
1326 armDCacheFlush(&ndrc->tramp.f[i], sizeof(ndrc->tramp.f[i]));
1329 return &ndrc->tramp.ops[i];
1332 static void emit_far_jump(const void *f)
1334 if (can_jump_or_call(f)) {
1339 f = get_trampoline(f);
1343 static void emit_far_call(const void *f)
1345 if (can_jump_or_call(f)) {
1350 f = get_trampoline(f);
1354 // Check if an address is already compiled
1355 // but don't return addresses which are about to expire from the cache
1356 static void *check_addr(u_int vaddr)
1358 struct ht_entry *ht_bin = hash_table_get(vaddr);
1360 for (i = 0; i < ARRAY_SIZE(ht_bin->vaddr); i++) {
1361 if (ht_bin->vaddr[i] == vaddr)
1362 if (doesnt_expire_soon(ht_bin->tcaddr[i]))
1363 return ht_bin->tcaddr[i];
1366 // refactor to get_addr_nocompile?
1367 u_int start_page = get_page_prev(vaddr);
1368 u_int page, end_page = get_page(vaddr);
1370 stat_inc(stat_jump_in_lookups);
1371 for (page = start_page; page <= end_page; page++) {
1372 const struct block_info *block;
1373 for (block = blocks[page]; block != NULL; block = block->next) {
1374 if (vaddr < block->start)
1376 if (block->is_dirty || vaddr >= block->start + block->len)
1378 if (!doesnt_expire_soon(ndrc->translation_cache + block->tc_offs))
1380 for (i = 0; i < block->jump_in_cnt; i++)
1381 if (block->jump_in[i].vaddr == vaddr)
1383 if (i == block->jump_in_cnt)
1386 // Update existing entry with current address
1387 void *addr = block->jump_in[i].addr;
1388 if (ht_bin->vaddr[0] == vaddr) {
1389 ht_bin->tcaddr[0] = addr;
1392 if (ht_bin->vaddr[1] == vaddr) {
1393 ht_bin->tcaddr[1] = addr;
1396 // Insert into hash table with low priority.
1397 // Don't evict existing entries, as they are probably
1398 // addresses that are being accessed frequently.
1399 if (ht_bin->vaddr[0] == -1) {
1400 ht_bin->vaddr[0] = vaddr;
1401 ht_bin->tcaddr[0] = addr;
1403 else if (ht_bin->vaddr[1] == -1) {
1404 ht_bin->vaddr[1] = vaddr;
1405 ht_bin->tcaddr[1] = addr;
1413 static void blocks_clear(struct block_info **head)
1415 struct block_info *cur, *next;
1417 if ((cur = *head)) {
1427 static int blocks_remove_matching_addrs(struct block_info **head,
1428 u_int base_offs, int shift)
1430 struct block_info *next;
1433 if ((((*head)->tc_offs ^ base_offs) >> shift) == 0) {
1434 inv_debug("EXP: rm block %08x (tc_offs %x)\n", (*head)->start, (*head)->tc_offs);
1435 invalidate_block(*head);
1436 next = (*head)->next;
1439 stat_dec(stat_blocks);
1444 head = &((*head)->next);
1450 // This is called when we write to a compiled block (see do_invstub)
1451 static void unlink_jumps_vaddr_range(u_int start, u_int end)
1453 u_int page, start_page = get_page(start), end_page = get_page(end - 1);
1456 for (page = start_page; page <= end_page; page++) {
1457 struct jump_info *ji = jumps[page];
1460 for (i = 0; i < ji->count; ) {
1461 if (ji->e[i].target_vaddr < start || ji->e[i].target_vaddr >= end) {
1466 inv_debug("INV: rm link to %08x (tc_offs %zx)\n", ji->e[i].target_vaddr,
1467 (u_char *)ji->e[i].stub - ndrc->translation_cache);
1468 void *host_addr = find_extjump_insn(ji->e[i].stub);
1469 mark_clear_cache(host_addr);
1470 set_jump_target(host_addr, ji->e[i].stub); // point back to dyna_linker stub
1472 stat_dec(stat_links);
1474 if (i < ji->count) {
1475 ji->e[i] = ji->e[ji->count];
1483 static void unlink_jumps_tc_range(struct jump_info *ji, u_int base_offs, int shift)
1488 for (i = 0; i < ji->count; ) {
1489 u_int tc_offs = (u_char *)ji->e[i].stub - ndrc->translation_cache;
1490 if (((tc_offs ^ base_offs) >> shift) != 0) {
1495 inv_debug("EXP: rm link to %08x (tc_offs %x)\n", ji->e[i].target_vaddr, tc_offs);
1496 stat_dec(stat_links);
1498 if (i < ji->count) {
1499 ji->e[i] = ji->e[ji->count];
1506 static void invalidate_block(struct block_info *block)
1510 block->is_dirty = 1;
1511 unlink_jumps_vaddr_range(block->start, block->start + block->len);
1512 for (i = 0; i < block->jump_in_cnt; i++)
1513 hash_table_remove(block->jump_in[i].vaddr);
1516 static int invalidate_range(u_int start, u_int end,
1517 u32 *inv_start_ret, u32 *inv_end_ret)
1519 struct block_info *last_block = NULL;
1520 u_int start_page = get_page_prev(start);
1521 u_int end_page = get_page(end - 1);
1522 u_int start_m = pmmask(start);
1523 u_int end_m = pmmask(end - 1);
1524 u_int inv_start, inv_end;
1525 u_int blk_start_m, blk_end_m;
1529 // additional area without code (to supplement invalid_code[]), [start, end)
1530 // avoids excessive ndrc_write_invalidate*() calls
1531 inv_start = start_m & ~0xfff;
1532 inv_end = end_m | 0xfff;
1534 for (page = start_page; page <= end_page; page++) {
1535 struct block_info *block;
1536 for (block = blocks[page]; block != NULL; block = block->next) {
1537 if (block->is_dirty)
1540 blk_end_m = pmmask(block->start + block->len);
1541 if (blk_end_m <= start_m) {
1542 inv_start = max(inv_start, blk_end_m);
1545 blk_start_m = pmmask(block->start);
1546 if (end_m <= blk_start_m) {
1547 inv_end = min(inv_end, blk_start_m - 1);
1550 if (!block->source) // "hack" block - leave it alone
1554 invalidate_block(block);
1555 stat_inc(stat_inv_hits);
1559 if (!hit && last_block && last_block->source) {
1560 // could be some leftover unused block, uselessly trapping writes
1561 last_block->inv_near_misses++;
1562 if (last_block->inv_near_misses > 128) {
1563 invalidate_block(last_block);
1564 stat_inc(stat_inv_hits);
1571 memset(mini_ht, -1, sizeof(mini_ht));
1575 if (inv_start <= (start_m & ~0xfff) && inv_end >= (start_m | 0xfff))
1576 // the whole page is empty now
1577 mark_invalid_code(start, 1, 1);
1579 if (inv_start_ret) *inv_start_ret = inv_start | (start & 0xe0000000);
1580 if (inv_end_ret) *inv_end_ret = inv_end | (end & 0xe0000000);
1584 void new_dynarec_invalidate_range(unsigned int start, unsigned int end)
1586 invalidate_range(start, end, NULL, NULL);
1589 static void ndrc_write_invalidate_many(u_int start, u_int end)
1591 // this check is done by the caller
1592 //if (inv_code_start<=addr&&addr<=inv_code_end) { rhits++; return; }
1593 int ret = invalidate_range(start, end, &inv_code_start, &inv_code_end);
1595 int invc = invalid_code[start >> 12];
1596 u_int len = end - start;
1598 printf("INV ADDR: %08x/%02x hit %d blocks\n", start, len, ret);
1600 printf("INV ADDR: %08x/%02x miss, inv %08x-%08x invc %d->%d\n", start, len,
1601 inv_code_start, inv_code_end, invc, invalid_code[start >> 12]);
1602 check_for_block_changes(start, end);
1604 stat_inc(stat_inv_addr_calls);
1608 void ndrc_write_invalidate_one(u_int addr)
1610 ndrc_write_invalidate_many(addr, addr + 4);
1613 // This is called when loading a save state.
1614 // Anything could have changed, so invalidate everything.
1615 void new_dynarec_invalidate_all_pages(void)
1617 struct block_info *block;
1619 for (page = 0; page < ARRAY_SIZE(blocks); page++) {
1620 for (block = blocks[page]; block != NULL; block = block->next) {
1621 if (block->is_dirty)
1623 if (!block->source) // hack block?
1625 invalidate_block(block);
1630 memset(mini_ht, -1, sizeof(mini_ht));
1635 // Add an entry to jump_out after making a link
1636 // src should point to code by emit_extjump()
1637 void ndrc_add_jump_out(u_int vaddr, void *src)
1639 inv_debug("ndrc_add_jump_out: %p -> %x\n", src, vaddr);
1640 u_int page = get_page(vaddr);
1641 struct jump_info *ji;
1643 stat_inc(stat_links);
1644 check_extjump2(src);
1647 ji = malloc(sizeof(*ji) + sizeof(ji->e[0]) * 16);
1651 else if (ji->count >= ji->alloc) {
1653 ji = realloc(ji, sizeof(*ji) + sizeof(ji->e[0]) * ji->alloc);
1656 ji->e[ji->count].target_vaddr = vaddr;
1657 ji->e[ji->count].stub = src;
1661 /* Register allocation */
1663 static void alloc_set(struct regstat *cur, int reg, int hr)
1665 cur->regmap[hr] = reg;
1666 cur->dirty &= ~(1u << hr);
1667 cur->isconst &= ~(1u << hr);
1668 cur->noevict |= 1u << hr;
1671 static void evict_alloc_reg(struct regstat *cur, int i, int reg, int preferred_hr)
1673 u_char hsn[MAXREG+1];
1675 memset(hsn, 10, sizeof(hsn));
1677 //printf("hsn(%x): %d %d %d %d %d %d %d\n",start+i*4,hsn[cur->regmap[0]&63],hsn[cur->regmap[1]&63],hsn[cur->regmap[2]&63],hsn[cur->regmap[3]&63],hsn[cur->regmap[5]&63],hsn[cur->regmap[6]&63],hsn[cur->regmap[7]&63]);
1679 // Don't evict the cycle count at entry points, otherwise the entry
1680 // stub will have to write it.
1681 if(dops[i].bt&&hsn[CCREG]>2) hsn[CCREG]=2;
1682 if (i>1 && hsn[CCREG] > 2 && dops[i-2].is_jump) hsn[CCREG]=2;
1685 // Alloc preferred register if available
1686 if (!((cur->noevict >> preferred_hr) & 1)
1687 && hsn[cur->regmap[preferred_hr]] == j)
1689 alloc_set(cur, reg, preferred_hr);
1692 for(r=1;r<=MAXREG;r++)
1694 if(hsn[r]==j&&r!=dops[i-1].rs1&&r!=dops[i-1].rs2&&r!=dops[i-1].rt1&&r!=dops[i-1].rt2) {
1695 for(hr=0;hr<HOST_REGS;hr++) {
1696 if (hr == EXCLUDE_REG || ((cur->noevict >> hr) & 1))
1698 if(hr!=HOST_CCREG||j<hsn[CCREG]) {
1699 if(cur->regmap[hr]==r) {
1700 alloc_set(cur, reg, hr);
1711 for(r=1;r<=MAXREG;r++)
1714 for(hr=0;hr<HOST_REGS;hr++) {
1715 if (hr == EXCLUDE_REG || ((cur->noevict >> hr) & 1))
1717 if(cur->regmap[hr]==r) {
1718 alloc_set(cur, reg, hr);
1725 SysPrintf("This shouldn't happen (evict_alloc_reg)\n");
1729 // Note: registers are allocated clean (unmodified state)
1730 // if you intend to modify the register, you must call dirty_reg().
1731 static void alloc_reg(struct regstat *cur,int i,signed char reg)
1734 int preferred_reg = PREFERRED_REG_FIRST
1735 + reg % (PREFERRED_REG_LAST - PREFERRED_REG_FIRST + 1);
1736 if (reg == CCREG) preferred_reg = HOST_CCREG;
1737 if (reg == PTEMP || reg == FTEMP) preferred_reg = 12;
1738 assert(PREFERRED_REG_FIRST != EXCLUDE_REG && EXCLUDE_REG != HOST_REGS);
1741 // Don't allocate unused registers
1742 if((cur->u>>reg)&1) return;
1744 // see if it's already allocated
1745 if ((hr = get_reg(cur->regmap, reg)) >= 0) {
1746 cur->noevict |= 1u << hr;
1750 // Keep the same mapping if the register was already allocated in a loop
1751 preferred_reg = loop_reg(i,reg,preferred_reg);
1753 // Try to allocate the preferred register
1754 if (cur->regmap[preferred_reg] == -1) {
1755 alloc_set(cur, reg, preferred_reg);
1758 r=cur->regmap[preferred_reg];
1761 alloc_set(cur, reg, preferred_reg);
1765 // Clear any unneeded registers
1766 // We try to keep the mapping consistent, if possible, because it
1767 // makes branches easier (especially loops). So we try to allocate
1768 // first (see above) before removing old mappings. If this is not
1769 // possible then go ahead and clear out the registers that are no
1771 for(hr=0;hr<HOST_REGS;hr++)
1776 if((cur->u>>r)&1) {cur->regmap[hr]=-1;break;}
1780 // Try to allocate any available register, but prefer
1781 // registers that have not been used recently.
1783 for (hr = PREFERRED_REG_FIRST; ; ) {
1784 if (cur->regmap[hr] < 0) {
1785 int oldreg = regs[i-1].regmap[hr];
1786 if (oldreg < 0 || (oldreg != dops[i-1].rs1 && oldreg != dops[i-1].rs2
1787 && oldreg != dops[i-1].rt1 && oldreg != dops[i-1].rt2))
1789 alloc_set(cur, reg, hr);
1794 if (hr == EXCLUDE_REG)
1796 if (hr == HOST_REGS)
1798 if (hr == PREFERRED_REG_FIRST)
1803 // Try to allocate any available register
1804 for (hr = PREFERRED_REG_FIRST; ; ) {
1805 if (cur->regmap[hr] < 0) {
1806 alloc_set(cur, reg, hr);
1810 if (hr == EXCLUDE_REG)
1812 if (hr == HOST_REGS)
1814 if (hr == PREFERRED_REG_FIRST)
1818 // Ok, now we have to evict someone
1819 // Pick a register we hopefully won't need soon
1820 evict_alloc_reg(cur, i, reg, preferred_reg);
1823 // Allocate a temporary register. This is done without regard to
1824 // dirty status or whether the register we request is on the unneeded list
1825 // Note: This will only allocate one register, even if called multiple times
1826 static void alloc_reg_temp(struct regstat *cur,int i,signed char reg)
1830 // see if it's already allocated
1831 for (hr = 0; hr < HOST_REGS; hr++)
1833 if (hr != EXCLUDE_REG && cur->regmap[hr] == reg) {
1834 cur->noevict |= 1u << hr;
1839 // Try to allocate any available register
1840 for(hr=HOST_REGS-1;hr>=0;hr--) {
1841 if(hr!=EXCLUDE_REG&&cur->regmap[hr]==-1) {
1842 alloc_set(cur, reg, hr);
1847 // Find an unneeded register
1848 for(hr=HOST_REGS-1;hr>=0;hr--)
1854 if(i==0||((unneeded_reg[i-1]>>r)&1)) {
1855 alloc_set(cur, reg, hr);
1862 // Ok, now we have to evict someone
1863 // Pick a register we hopefully won't need soon
1864 evict_alloc_reg(cur, i, reg, 0);
1867 static void mov_alloc(struct regstat *current,int i)
1869 if (dops[i].rs1 == HIREG || dops[i].rs1 == LOREG) {
1870 alloc_cc(current,i); // for stalls
1871 dirty_reg(current,CCREG);
1874 // Note: Don't need to actually alloc the source registers
1875 //alloc_reg(current,i,dops[i].rs1);
1876 alloc_reg(current,i,dops[i].rt1);
1878 clear_const(current,dops[i].rs1);
1879 clear_const(current,dops[i].rt1);
1880 dirty_reg(current,dops[i].rt1);
1883 static void shiftimm_alloc(struct regstat *current,int i)
1885 if(dops[i].opcode2<=0x3) // SLL/SRL/SRA
1888 if(dops[i].rs1&&needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1);
1889 else dops[i].use_lt1=!!dops[i].rs1;
1890 alloc_reg(current,i,dops[i].rt1);
1891 dirty_reg(current,dops[i].rt1);
1892 if(is_const(current,dops[i].rs1)) {
1893 int v=get_const(current,dops[i].rs1);
1894 if(dops[i].opcode2==0x00) set_const(current,dops[i].rt1,v<<cinfo[i].imm);
1895 if(dops[i].opcode2==0x02) set_const(current,dops[i].rt1,(u_int)v>>cinfo[i].imm);
1896 if(dops[i].opcode2==0x03) set_const(current,dops[i].rt1,v>>cinfo[i].imm);
1898 else clear_const(current,dops[i].rt1);
1903 clear_const(current,dops[i].rs1);
1904 clear_const(current,dops[i].rt1);
1907 if(dops[i].opcode2>=0x38&&dops[i].opcode2<=0x3b) // DSLL/DSRL/DSRA
1911 if(dops[i].opcode2==0x3c) // DSLL32
1915 if(dops[i].opcode2==0x3e) // DSRL32
1919 if(dops[i].opcode2==0x3f) // DSRA32
1925 static void shift_alloc(struct regstat *current,int i)
1928 if(dops[i].rs1) alloc_reg(current,i,dops[i].rs1);
1929 if(dops[i].rs2) alloc_reg(current,i,dops[i].rs2);
1930 alloc_reg(current,i,dops[i].rt1);
1931 if(dops[i].rt1==dops[i].rs2) {
1932 alloc_reg_temp(current,i,-1);
1933 cinfo[i].min_free_regs=1;
1935 clear_const(current,dops[i].rs1);
1936 clear_const(current,dops[i].rs2);
1937 clear_const(current,dops[i].rt1);
1938 dirty_reg(current,dops[i].rt1);
1942 static void alu_alloc(struct regstat *current,int i)
1944 if(dops[i].opcode2>=0x20&&dops[i].opcode2<=0x23) { // ADD/ADDU/SUB/SUBU
1946 if(dops[i].rs1&&dops[i].rs2) {
1947 alloc_reg(current,i,dops[i].rs1);
1948 alloc_reg(current,i,dops[i].rs2);
1951 if(dops[i].rs1&&needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1);
1952 if(dops[i].rs2&&needed_again(dops[i].rs2,i)) alloc_reg(current,i,dops[i].rs2);
1954 alloc_reg(current,i,dops[i].rt1);
1956 if (dops[i].may_except) {
1957 alloc_cc_optional(current, i); // for exceptions
1958 alloc_reg_temp(current, i, -1);
1959 cinfo[i].min_free_regs = 1;
1962 else if(dops[i].opcode2==0x2a||dops[i].opcode2==0x2b) { // SLT/SLTU
1964 alloc_reg(current,i,dops[i].rs1);
1965 alloc_reg(current,i,dops[i].rs2);
1966 alloc_reg(current,i,dops[i].rt1);
1969 else if(dops[i].opcode2>=0x24&&dops[i].opcode2<=0x27) { // AND/OR/XOR/NOR
1971 if(dops[i].rs1&&dops[i].rs2) {
1972 alloc_reg(current,i,dops[i].rs1);
1973 alloc_reg(current,i,dops[i].rs2);
1977 if(dops[i].rs1&&needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1);
1978 if(dops[i].rs2&&needed_again(dops[i].rs2,i)) alloc_reg(current,i,dops[i].rs2);
1980 alloc_reg(current,i,dops[i].rt1);
1983 clear_const(current,dops[i].rs1);
1984 clear_const(current,dops[i].rs2);
1985 clear_const(current,dops[i].rt1);
1986 dirty_reg(current,dops[i].rt1);
1989 static void imm16_alloc(struct regstat *current,int i)
1991 if(dops[i].rs1&&needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1);
1992 else dops[i].use_lt1=!!dops[i].rs1;
1993 if(dops[i].rt1) alloc_reg(current,i,dops[i].rt1);
1994 if(dops[i].opcode==0x0a||dops[i].opcode==0x0b) { // SLTI/SLTIU
1995 clear_const(current,dops[i].rs1);
1996 clear_const(current,dops[i].rt1);
1998 else if(dops[i].opcode>=0x0c&&dops[i].opcode<=0x0e) { // ANDI/ORI/XORI
1999 if(is_const(current,dops[i].rs1)) {
2000 int v=get_const(current,dops[i].rs1);
2001 if(dops[i].opcode==0x0c) set_const(current,dops[i].rt1,v&cinfo[i].imm);
2002 if(dops[i].opcode==0x0d) set_const(current,dops[i].rt1,v|cinfo[i].imm);
2003 if(dops[i].opcode==0x0e) set_const(current,dops[i].rt1,v^cinfo[i].imm);
2005 else clear_const(current,dops[i].rt1);
2007 else if(dops[i].opcode==0x08||dops[i].opcode==0x09) { // ADDI/ADDIU
2008 if(is_const(current,dops[i].rs1)) {
2009 int v=get_const(current,dops[i].rs1);
2010 set_const(current,dops[i].rt1,v+cinfo[i].imm);
2012 else clear_const(current,dops[i].rt1);
2013 if (dops[i].may_except) {
2014 alloc_cc_optional(current, i); // for exceptions
2015 alloc_reg_temp(current, i, -1);
2016 cinfo[i].min_free_regs = 1;
2020 set_const(current,dops[i].rt1,cinfo[i].imm<<16); // LUI
2022 dirty_reg(current,dops[i].rt1);
2025 static void load_alloc(struct regstat *current,int i)
2028 clear_const(current,dops[i].rt1);
2029 //if(dops[i].rs1!=dops[i].rt1&&needed_again(dops[i].rs1,i)) clear_const(current,dops[i].rs1); // Does this help or hurt?
2030 if(!dops[i].rs1) current->u&=~1LL; // Allow allocating r0 if it's the source register
2031 if (needed_again(dops[i].rs1, i))
2032 alloc_reg(current, i, dops[i].rs1);
2034 alloc_reg(current, i, ROREG);
2035 if (dops[i].may_except) {
2036 alloc_cc_optional(current, i); // for exceptions
2039 if(dops[i].rt1&&!((current->u>>dops[i].rt1)&1)) {
2040 alloc_reg(current,i,dops[i].rt1);
2041 assert(get_reg_w(current->regmap, dops[i].rt1)>=0);
2042 dirty_reg(current,dops[i].rt1);
2043 // LWL/LWR need a temporary register for the old value
2044 if(dops[i].opcode==0x22||dops[i].opcode==0x26)
2046 alloc_reg(current,i,FTEMP);
2052 // Load to r0 or unneeded register (dummy load)
2053 // but we still need a register to calculate the address
2054 if(dops[i].opcode==0x22||dops[i].opcode==0x26)
2055 alloc_reg(current,i,FTEMP); // LWL/LWR need another temporary
2059 alloc_reg_temp(current, i, -1);
2060 cinfo[i].min_free_regs = 1;
2064 // this may eat up to 7 registers
2065 static void store_alloc(struct regstat *current, int i)
2067 clear_const(current,dops[i].rs2);
2068 if(!(dops[i].rs2)) current->u&=~1LL; // Allow allocating r0 if necessary
2069 if(needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1);
2070 alloc_reg(current,i,dops[i].rs2);
2072 alloc_reg(current, i, ROREG);
2073 #if defined(HOST_IMM8)
2074 // On CPUs without 32-bit immediates we need a pointer to invalid_code
2075 alloc_reg(current, i, INVCP);
2077 if (dops[i].opcode == 0x2a || dops[i].opcode == 0x2e) { // SWL/SWL
2078 alloc_reg(current,i,FTEMP);
2080 if (dops[i].may_except)
2081 alloc_cc_optional(current, i); // for exceptions
2082 // We need a temporary register for address generation
2083 alloc_reg_temp(current,i,-1);
2084 cinfo[i].min_free_regs=1;
2087 static void c2ls_alloc(struct regstat *current, int i)
2089 clear_const(current,dops[i].rt1);
2090 if(needed_again(dops[i].rs1,i)) alloc_reg(current,i,dops[i].rs1);
2091 alloc_reg(current,i,FTEMP);
2093 alloc_reg(current, i, ROREG);
2094 #if defined(HOST_IMM8)
2095 // On CPUs without 32-bit immediates we need a pointer to invalid_code
2096 if (dops[i].opcode == 0x3a) // SWC2
2097 alloc_reg(current,i,INVCP);
2099 if (dops[i].may_except)
2100 alloc_cc_optional(current, i); // for exceptions
2101 // We need a temporary register for address generation
2102 alloc_reg_temp(current,i,-1);
2103 cinfo[i].min_free_regs=1;
2106 #ifndef multdiv_alloc
2107 static void multdiv_alloc(struct regstat *current,int i)
2113 clear_const(current,dops[i].rs1);
2114 clear_const(current,dops[i].rs2);
2115 alloc_cc(current,i); // for stalls
2116 dirty_reg(current,CCREG);
2117 if(dops[i].rs1&&dops[i].rs2)
2119 current->u&=~(1LL<<HIREG);
2120 current->u&=~(1LL<<LOREG);
2121 alloc_reg(current,i,HIREG);
2122 alloc_reg(current,i,LOREG);
2123 alloc_reg(current,i,dops[i].rs1);
2124 alloc_reg(current,i,dops[i].rs2);
2125 dirty_reg(current,HIREG);
2126 dirty_reg(current,LOREG);
2130 // Multiply by zero is zero.
2131 // MIPS does not have a divide by zero exception.
2132 alloc_reg(current,i,HIREG);
2133 alloc_reg(current,i,LOREG);
2134 dirty_reg(current,HIREG);
2135 dirty_reg(current,LOREG);
2136 if (dops[i].rs1 && ((dops[i].opcode2 & 0x3e) == 0x1a)) // div(u) 0
2137 alloc_reg(current, i, dops[i].rs1);
2142 static void cop0_alloc(struct regstat *current,int i)
2144 if(dops[i].opcode2==0) // MFC0
2147 clear_const(current,dops[i].rt1);
2148 alloc_reg(current,i,dops[i].rt1);
2149 dirty_reg(current,dops[i].rt1);
2152 else if(dops[i].opcode2==4) // MTC0
2154 if (((source[i]>>11)&0x1e) == 12) {
2155 alloc_cc(current, i);
2156 dirty_reg(current, CCREG);
2159 clear_const(current,dops[i].rs1);
2160 alloc_reg(current,i,dops[i].rs1);
2161 alloc_all(current,i);
2164 alloc_all(current,i); // FIXME: Keep r0
2166 alloc_reg(current,i,0);
2168 cinfo[i].min_free_regs = HOST_REGS;
2172 static void rfe_alloc(struct regstat *current, int i)
2174 alloc_all(current, i);
2175 cinfo[i].min_free_regs = HOST_REGS;
2178 static void cop2_alloc(struct regstat *current,int i)
2180 if (dops[i].opcode2 < 3) // MFC2/CFC2
2182 alloc_cc(current,i); // for stalls
2183 dirty_reg(current,CCREG);
2185 clear_const(current,dops[i].rt1);
2186 alloc_reg(current,i,dops[i].rt1);
2187 dirty_reg(current,dops[i].rt1);
2190 else if (dops[i].opcode2 > 3) // MTC2/CTC2
2193 clear_const(current,dops[i].rs1);
2194 alloc_reg(current,i,dops[i].rs1);
2198 alloc_reg(current,i,0);
2201 alloc_reg_temp(current,i,-1);
2202 cinfo[i].min_free_regs=1;
2205 static void c2op_alloc(struct regstat *current,int i)
2207 alloc_cc(current,i); // for stalls
2208 dirty_reg(current,CCREG);
2209 alloc_reg_temp(current,i,-1);
2212 static void syscall_alloc(struct regstat *current,int i)
2214 alloc_cc(current,i);
2215 dirty_reg(current,CCREG);
2216 alloc_all(current,i);
2217 cinfo[i].min_free_regs=HOST_REGS;
2221 static void delayslot_alloc(struct regstat *current,int i)
2223 switch(dops[i].itype) {
2231 imm16_alloc(current,i);
2235 load_alloc(current,i);
2239 store_alloc(current,i);
2242 alu_alloc(current,i);
2245 shift_alloc(current,i);
2248 multdiv_alloc(current,i);
2251 shiftimm_alloc(current,i);
2254 mov_alloc(current,i);
2257 cop0_alloc(current,i);
2260 rfe_alloc(current,i);
2263 cop2_alloc(current,i);
2266 c2ls_alloc(current,i);
2269 c2op_alloc(current,i);
2274 static void add_stub(enum stub_type type, void *addr, void *retaddr,
2275 u_int a, uintptr_t b, uintptr_t c, u_int d, u_int e)
2277 assert(stubcount < ARRAY_SIZE(stubs));
2278 stubs[stubcount].type = type;
2279 stubs[stubcount].addr = addr;
2280 stubs[stubcount].retaddr = retaddr;
2281 stubs[stubcount].a = a;
2282 stubs[stubcount].b = b;
2283 stubs[stubcount].c = c;
2284 stubs[stubcount].d = d;
2285 stubs[stubcount].e = e;
2289 static void add_stub_r(enum stub_type type, void *addr, void *retaddr,
2290 int i, int addr_reg, const struct regstat *i_regs, int ccadj, u_int reglist)
2292 add_stub(type, addr, retaddr, i, addr_reg, (uintptr_t)i_regs, ccadj, reglist);
2295 // Write out a single register
2296 static void wb_register(signed char r, const signed char regmap[], u_int dirty)
2299 for(hr=0;hr<HOST_REGS;hr++) {
2300 if(hr!=EXCLUDE_REG) {
2303 assert(regmap[hr]<64);
2304 emit_storereg(r,hr);
2312 static void wb_valid(signed char pre[],signed char entry[],u_int dirty_pre,u_int dirty,uint64_t u)
2314 //if(dirty_pre==dirty) return;
2316 for (hr = 0; hr < HOST_REGS; hr++) {
2318 if (r < 1 || r > 33 || ((u >> r) & 1))
2320 if (((dirty_pre & ~dirty) >> hr) & 1)
2321 emit_storereg(r, hr);
2326 static void pass_args(int a0, int a1)
2330 emit_mov(a0,2); emit_mov(a1,1); emit_mov(2,0);
2332 else if(a0!=0&&a1==0) {
2334 if (a0>=0) emit_mov(a0,0);
2337 if(a0>=0&&a0!=0) emit_mov(a0,0);
2338 if(a1>=0&&a1!=1) emit_mov(a1,1);
2342 static void alu_assemble(int i, const struct regstat *i_regs, int ccadj_)
2344 if(dops[i].opcode2>=0x20&&dops[i].opcode2<=0x23) { // ADD/ADDU/SUB/SUBU
2345 int do_oflow = dops[i].may_except; // ADD/SUB with exceptions enabled
2346 if (dops[i].rt1 || do_oflow) {
2347 int do_exception_check = 0;
2348 signed char s1, s2, t, tmp;
2349 t = get_reg_w(i_regs->regmap, dops[i].rt1);
2350 tmp = get_reg_temp(i_regs->regmap);
2353 if (t < 0 && do_oflow)
2356 s1 = get_reg(i_regs->regmap, dops[i].rs1);
2357 s2 = get_reg(i_regs->regmap, dops[i].rs2);
2358 if (dops[i].rs1 && dops[i].rs2) {
2361 if (dops[i].opcode2 & 2) {
2363 emit_subs(s1, s2, tmp);
2364 do_exception_check = 1;
2371 emit_adds(s1, s2, tmp);
2372 do_exception_check = 1;
2378 else if(dops[i].rs1) {
2379 if(s1>=0) emit_mov(s1,t);
2380 else emit_loadreg(dops[i].rs1,t);
2382 else if(dops[i].rs2) {
2384 emit_loadreg(dops[i].rs2, t);
2387 if (dops[i].opcode2 & 2) {
2390 do_exception_check = 1;
2401 if (do_exception_check) {
2404 if (t >= 0 && tmp != t)
2406 add_stub_r(OVERFLOW_STUB, jaddr, out, i, 0, i_regs, ccadj_, 0);
2410 else if(dops[i].opcode2==0x2a||dops[i].opcode2==0x2b) { // SLT/SLTU
2412 signed char s1l,s2l,t;
2414 t=get_reg_w(i_regs->regmap, dops[i].rt1);
2417 s1l=get_reg(i_regs->regmap,dops[i].rs1);
2418 s2l=get_reg(i_regs->regmap,dops[i].rs2);
2419 if(dops[i].rs2==0) // rx<r0
2421 if(dops[i].opcode2==0x2a&&dops[i].rs1!=0) { // SLT
2423 emit_shrimm(s1l,31,t);
2425 else // SLTU (unsigned can not be less than zero, 0<0)
2428 else if(dops[i].rs1==0) // r0<rx
2431 if(dops[i].opcode2==0x2a) // SLT
2432 emit_set_gz32(s2l,t);
2433 else // SLTU (set if not zero)
2434 emit_set_nz32(s2l,t);
2437 assert(s1l>=0);assert(s2l>=0);
2438 if(dops[i].opcode2==0x2a) // SLT
2439 emit_set_if_less32(s1l,s2l,t);
2441 emit_set_if_carry32(s1l,s2l,t);
2447 else if(dops[i].opcode2>=0x24&&dops[i].opcode2<=0x27) { // AND/OR/XOR/NOR
2449 signed char s1l,s2l,tl;
2450 tl=get_reg_w(i_regs->regmap, dops[i].rt1);
2453 s1l=get_reg(i_regs->regmap,dops[i].rs1);
2454 s2l=get_reg(i_regs->regmap,dops[i].rs2);
2455 if(dops[i].rs1&&dops[i].rs2) {
2458 if(dops[i].opcode2==0x24) { // AND
2459 emit_and(s1l,s2l,tl);
2461 if(dops[i].opcode2==0x25) { // OR
2462 emit_or(s1l,s2l,tl);
2464 if(dops[i].opcode2==0x26) { // XOR
2465 emit_xor(s1l,s2l,tl);
2467 if(dops[i].opcode2==0x27) { // NOR
2468 emit_or(s1l,s2l,tl);
2474 if(dops[i].opcode2==0x24) { // AND
2477 if(dops[i].opcode2==0x25||dops[i].opcode2==0x26) { // OR/XOR
2479 if(s1l>=0) emit_mov(s1l,tl);
2480 else emit_loadreg(dops[i].rs1,tl); // CHECK: regmap_entry?
2484 if(s2l>=0) emit_mov(s2l,tl);
2485 else emit_loadreg(dops[i].rs2,tl); // CHECK: regmap_entry?
2487 else emit_zeroreg(tl);
2489 if(dops[i].opcode2==0x27) { // NOR
2491 if(s1l>=0) emit_not(s1l,tl);
2493 emit_loadreg(dops[i].rs1,tl);
2499 if(s2l>=0) emit_not(s2l,tl);
2501 emit_loadreg(dops[i].rs2,tl);
2505 else emit_movimm(-1,tl);
2514 static void imm16_assemble(int i, const struct regstat *i_regs, int ccadj_)
2516 if (dops[i].opcode==0x0f) { // LUI
2519 t=get_reg_w(i_regs->regmap, dops[i].rt1);
2522 if(!((i_regs->isconst>>t)&1))
2523 emit_movimm(cinfo[i].imm<<16,t);
2527 if(dops[i].opcode==0x08||dops[i].opcode==0x09) { // ADDI/ADDIU
2528 int is_addi = dops[i].may_except;
2529 if (dops[i].rt1 || is_addi) {
2530 signed char s, t, tmp;
2531 t=get_reg_w(i_regs->regmap, dops[i].rt1);
2532 s=get_reg(i_regs->regmap,dops[i].rs1);
2534 tmp = get_reg_temp(i_regs->regmap);
2540 if(!((i_regs->isconst>>t)&1)) {
2541 int sum, do_exception_check = 0;
2543 if(i_regs->regmap_entry[t]!=dops[i].rs1) emit_loadreg(dops[i].rs1,t);
2545 emit_addimm_and_set_flags3(t, cinfo[i].imm, tmp);
2546 do_exception_check = 1;
2549 emit_addimm(t, cinfo[i].imm, t);
2551 if (!((i_regs->wasconst >> s) & 1)) {
2553 emit_addimm_and_set_flags3(s, cinfo[i].imm, tmp);
2554 do_exception_check = 1;
2557 emit_addimm(s, cinfo[i].imm, t);
2560 int oflow = add_overflow(constmap[i][s], cinfo[i].imm, sum);
2561 if (is_addi && oflow)
2562 do_exception_check = 2;
2564 emit_movimm(sum, t);
2567 if (do_exception_check) {
2569 if (do_exception_check == 2)
2576 add_stub_r(OVERFLOW_STUB, jaddr, out, i, 0, i_regs, ccadj_, 0);
2582 if(!((i_regs->isconst>>t)&1))
2583 emit_movimm(cinfo[i].imm,t);
2588 else if(dops[i].opcode==0x0a||dops[i].opcode==0x0b) { // SLTI/SLTIU
2590 //assert(dops[i].rs1!=0); // r0 might be valid, but it's probably a bug
2592 t=get_reg_w(i_regs->regmap, dops[i].rt1);
2593 sl=get_reg(i_regs->regmap,dops[i].rs1);
2597 if(dops[i].opcode==0x0a) { // SLTI
2599 if(i_regs->regmap_entry[t]!=dops[i].rs1) emit_loadreg(dops[i].rs1,t);
2600 emit_slti32(t,cinfo[i].imm,t);
2602 emit_slti32(sl,cinfo[i].imm,t);
2607 if(i_regs->regmap_entry[t]!=dops[i].rs1) emit_loadreg(dops[i].rs1,t);
2608 emit_sltiu32(t,cinfo[i].imm,t);
2610 emit_sltiu32(sl,cinfo[i].imm,t);
2614 // SLTI(U) with r0 is just stupid,
2615 // nonetheless examples can be found
2616 if(dops[i].opcode==0x0a) // SLTI
2617 if(0<cinfo[i].imm) emit_movimm(1,t);
2618 else emit_zeroreg(t);
2621 if(cinfo[i].imm) emit_movimm(1,t);
2622 else emit_zeroreg(t);
2628 else if(dops[i].opcode>=0x0c&&dops[i].opcode<=0x0e) { // ANDI/ORI/XORI
2631 tl=get_reg_w(i_regs->regmap, dops[i].rt1);
2632 sl=get_reg(i_regs->regmap,dops[i].rs1);
2633 if(tl>=0 && !((i_regs->isconst>>tl)&1)) {
2634 if(dops[i].opcode==0x0c) //ANDI
2638 if(i_regs->regmap_entry[tl]!=dops[i].rs1) emit_loadreg(dops[i].rs1,tl);
2639 emit_andimm(tl,cinfo[i].imm,tl);
2641 if(!((i_regs->wasconst>>sl)&1))
2642 emit_andimm(sl,cinfo[i].imm,tl);
2644 emit_movimm(constmap[i][sl]&cinfo[i].imm,tl);
2654 if(i_regs->regmap_entry[tl]!=dops[i].rs1) emit_loadreg(dops[i].rs1,tl);
2656 if(dops[i].opcode==0x0d) { // ORI
2658 emit_orimm(tl,cinfo[i].imm,tl);
2660 if(!((i_regs->wasconst>>sl)&1))
2661 emit_orimm(sl,cinfo[i].imm,tl);
2663 emit_movimm(constmap[i][sl]|cinfo[i].imm,tl);
2666 if(dops[i].opcode==0x0e) { // XORI
2668 emit_xorimm(tl,cinfo[i].imm,tl);
2670 if(!((i_regs->wasconst>>sl)&1))
2671 emit_xorimm(sl,cinfo[i].imm,tl);
2673 emit_movimm(constmap[i][sl]^cinfo[i].imm,tl);
2678 emit_movimm(cinfo[i].imm,tl);
2686 static void shiftimm_assemble(int i, const struct regstat *i_regs)
2688 if(dops[i].opcode2<=0x3) // SLL/SRL/SRA
2692 t=get_reg_w(i_regs->regmap, dops[i].rt1);
2693 s=get_reg(i_regs->regmap,dops[i].rs1);
2695 if(t>=0&&!((i_regs->isconst>>t)&1)){
2702 if(s<0&&i_regs->regmap_entry[t]!=dops[i].rs1) emit_loadreg(dops[i].rs1,t);
2704 if(dops[i].opcode2==0) // SLL
2706 emit_shlimm(s<0?t:s,cinfo[i].imm,t);
2708 if(dops[i].opcode2==2) // SRL
2710 emit_shrimm(s<0?t:s,cinfo[i].imm,t);
2712 if(dops[i].opcode2==3) // SRA
2714 emit_sarimm(s<0?t:s,cinfo[i].imm,t);
2718 if(s>=0 && s!=t) emit_mov(s,t);
2722 //emit_storereg(dops[i].rt1,t); //DEBUG
2725 if(dops[i].opcode2>=0x38&&dops[i].opcode2<=0x3b) // DSLL/DSRL/DSRA
2729 if(dops[i].opcode2==0x3c) // DSLL32
2733 if(dops[i].opcode2==0x3e) // DSRL32
2737 if(dops[i].opcode2==0x3f) // DSRA32
2743 #ifndef shift_assemble
2744 static void shift_assemble(int i, const struct regstat *i_regs)
2746 signed char s,t,shift;
2747 if (dops[i].rt1 == 0)
2749 assert(dops[i].opcode2<=0x07); // SLLV/SRLV/SRAV
2750 t = get_reg(i_regs->regmap, dops[i].rt1);
2751 s = get_reg(i_regs->regmap, dops[i].rs1);
2752 shift = get_reg(i_regs->regmap, dops[i].rs2);
2758 else if(dops[i].rs2==0) {
2760 if(s!=t) emit_mov(s,t);
2763 host_tempreg_acquire();
2764 emit_andimm(shift,31,HOST_TEMPREG);
2765 switch(dops[i].opcode2) {
2767 emit_shl(s,HOST_TEMPREG,t);
2770 emit_shr(s,HOST_TEMPREG,t);
2773 emit_sar(s,HOST_TEMPREG,t);
2778 host_tempreg_release();
2792 static int get_ptr_mem_type(u_int a)
2794 if(a < 0x00200000) {
2795 if(a<0x1000&&((start>>20)==0xbfc||(start>>24)==0xa0))
2796 // return wrong, must use memhandler for BIOS self-test to pass
2797 // 007 does similar stuff from a00 mirror, weird stuff
2801 if(0x1f800000 <= a && a < 0x1f801000)
2803 if(0x80200000 <= a && a < 0x80800000)
2805 if(0xa0000000 <= a && a < 0xa0200000)
2810 static int get_ro_reg(const struct regstat *i_regs, int host_tempreg_free)
2812 int r = get_reg(i_regs->regmap, ROREG);
2813 if (r < 0 && host_tempreg_free) {
2814 host_tempreg_acquire();
2815 emit_loadreg(ROREG, r = HOST_TEMPREG);
2822 static void *emit_fastpath_cmp_jump(int i, const struct regstat *i_regs,
2823 int addr, int *offset_reg, int *addr_reg_override, int ccadj_)
2827 int mr = dops[i].rs1;
2830 if(((smrv_strong|smrv_weak)>>mr)&1) {
2831 type=get_ptr_mem_type(smrv[mr]);
2832 //printf("set %08x @%08x r%d %d\n", smrv[mr], start+i*4, mr, type);
2835 // use the mirror we are running on
2836 type=get_ptr_mem_type(start);
2837 //printf("set nospec @%08x r%d %d\n", start+i*4, mr, type);
2840 if (dops[i].may_except) {
2842 u_int op = dops[i].opcode;
2843 int mask = ((op & 0x37) == 0x21 || op == 0x25) ? 1 : 3; // LH/SH/LHU
2845 emit_testimm(addr, mask);
2848 add_stub_r(ALIGNMENT_STUB, jaddr2, out, i, addr, i_regs, ccadj_, 0);
2851 if(type==MTYPE_8020) { // RAM 80200000+ mirror
2852 host_tempreg_acquire();
2853 emit_andimm(addr,~0x00e00000,HOST_TEMPREG);
2854 addr=*addr_reg_override=HOST_TEMPREG;
2857 else if(type==MTYPE_0000) { // RAM 0 mirror
2858 host_tempreg_acquire();
2859 emit_orimm(addr,0x80000000,HOST_TEMPREG);
2860 addr=*addr_reg_override=HOST_TEMPREG;
2863 else if(type==MTYPE_A000) { // RAM A mirror
2864 host_tempreg_acquire();
2865 emit_andimm(addr,~0x20000000,HOST_TEMPREG);
2866 addr=*addr_reg_override=HOST_TEMPREG;
2869 else if(type==MTYPE_1F80) { // scratchpad
2870 if (psxH == (void *)0x1f800000) {
2871 host_tempreg_acquire();
2872 emit_xorimm(addr,0x1f800000,HOST_TEMPREG);
2873 emit_cmpimm(HOST_TEMPREG,0x1000);
2874 host_tempreg_release();
2879 // do the usual RAM check, jump will go to the right handler
2884 if (type == 0) // need ram check
2886 emit_cmpimm(addr,RAM_SIZE);
2888 #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
2889 // Hint to branch predictor that the branch is unlikely to be taken
2890 if (dops[i].rs1 >= 28)
2891 emit_jno_unlikely(0);
2895 if (ram_offset != 0)
2896 *offset_reg = get_ro_reg(i_regs, 0);
2902 // return memhandler, or get directly accessable address and return 0
2903 static void *get_direct_memhandler(void *table, u_int addr,
2904 enum stub_type type, uintptr_t *addr_host)
2906 uintptr_t msb = 1ull << (sizeof(uintptr_t)*8 - 1);
2907 uintptr_t l1, l2 = 0;
2908 l1 = ((uintptr_t *)table)[addr>>12];
2910 uintptr_t v = l1 << 1;
2911 *addr_host = v + addr;
2916 if (type == LOADB_STUB || type == LOADBU_STUB || type == STOREB_STUB)
2917 l2 = ((uintptr_t *)l1)[0x1000/4 + 0x1000/2 + (addr&0xfff)];
2918 else if (type == LOADH_STUB || type == LOADHU_STUB || type == STOREH_STUB)
2919 l2 = ((uintptr_t *)l1)[0x1000/4 + (addr&0xfff)/2];
2921 l2 = ((uintptr_t *)l1)[(addr&0xfff)/4];
2923 uintptr_t v = l2 << 1;
2924 *addr_host = v + (addr&0xfff);
2927 return (void *)(l2 << 1);
2931 static u_int get_host_reglist(const signed char *regmap)
2933 u_int reglist = 0, hr;
2934 for (hr = 0; hr < HOST_REGS; hr++) {
2935 if (hr != EXCLUDE_REG && regmap[hr] >= 0)
2941 static u_int reglist_exclude(u_int reglist, int r1, int r2)
2944 reglist &= ~(1u << r1);
2946 reglist &= ~(1u << r2);
2950 // find a temp caller-saved register not in reglist (so assumed to be free)
2951 static int reglist_find_free(u_int reglist)
2953 u_int free_regs = ~reglist & CALLER_SAVE_REGS;
2956 return __builtin_ctz(free_regs);
2959 static void do_load_word(int a, int rt, int offset_reg)
2961 if (offset_reg >= 0)
2962 emit_ldr_dualindexed(offset_reg, a, rt);
2964 emit_readword_indexed(0, a, rt);
2967 static void do_store_word(int a, int ofs, int rt, int offset_reg, int preseve_a)
2969 if (offset_reg < 0) {
2970 emit_writeword_indexed(rt, ofs, a);
2974 emit_addimm(a, ofs, a);
2975 emit_str_dualindexed(offset_reg, a, rt);
2976 if (ofs != 0 && preseve_a)
2977 emit_addimm(a, -ofs, a);
2980 static void do_store_hword(int a, int ofs, int rt, int offset_reg, int preseve_a)
2982 if (offset_reg < 0) {
2983 emit_writehword_indexed(rt, ofs, a);
2987 emit_addimm(a, ofs, a);
2988 emit_strh_dualindexed(offset_reg, a, rt);
2989 if (ofs != 0 && preseve_a)
2990 emit_addimm(a, -ofs, a);
2993 static void do_store_byte(int a, int rt, int offset_reg)
2995 if (offset_reg >= 0)
2996 emit_strb_dualindexed(offset_reg, a, rt);
2998 emit_writebyte_indexed(rt, 0, a);
3001 static void load_assemble(int i, const struct regstat *i_regs, int ccadj_)
3003 int addr = cinfo[i].addr;
3007 int memtarget=0,c=0;
3008 int offset_reg = -1;
3009 int fastio_reg_override = -1;
3010 u_int reglist=get_host_reglist(i_regs->regmap);
3011 tl=get_reg_w(i_regs->regmap, dops[i].rt1);
3012 s=get_reg(i_regs->regmap,dops[i].rs1);
3013 offset=cinfo[i].imm;
3014 if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG);
3016 c=(i_regs->wasconst>>s)&1;
3018 memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE;
3021 //printf("load_assemble: c=%d\n",c);
3022 //if(c) printf("load_assemble: const=%lx\n",(long)constmap[i][s]+offset);
3023 if(tl<0 && ((!c||(((u_int)constmap[i][s]+offset)>>16)==0x1f80) || dops[i].rt1==0)) {
3024 // could be FIFO, must perform the read
3026 assem_debug("(forced read)\n");
3027 tl = get_reg_temp(i_regs->regmap); // may be == addr
3032 //printf("load_assemble: c=%d\n",c);
3033 //if(c) printf("load_assemble: const=%lx\n",(long)constmap[i][s]+offset);
3037 // Strmnnrmn's speed hack
3038 if(dops[i].rs1!=29||start<0x80001000||start>=0x80000000+RAM_SIZE)
3041 jaddr = emit_fastpath_cmp_jump(i, i_regs, addr,
3042 &offset_reg, &fastio_reg_override, ccadj_);
3045 else if (ram_offset && memtarget) {
3046 offset_reg = get_ro_reg(i_regs, 0);
3048 int dummy=(dops[i].rt1==0)||(tl!=get_reg_w(i_regs->regmap, dops[i].rt1)); // ignore loads to r0 and unneeded reg
3049 switch (dops[i].opcode) {
3054 if (fastio_reg_override >= 0)
3055 a = fastio_reg_override;
3057 if (offset_reg >= 0)
3058 emit_ldrsb_dualindexed(offset_reg, a, tl);
3060 emit_movsbl_indexed(0, a, tl);
3063 add_stub_r(LOADB_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist);
3066 inline_readstub(LOADB_STUB,i,constmap[i][s]+offset,i_regs->regmap,dops[i].rt1,ccadj_,reglist);
3072 if (fastio_reg_override >= 0)
3073 a = fastio_reg_override;
3074 if (offset_reg >= 0)
3075 emit_ldrsh_dualindexed(offset_reg, a, tl);
3077 emit_movswl_indexed(0, a, tl);
3080 add_stub_r(LOADH_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist);
3083 inline_readstub(LOADH_STUB,i,constmap[i][s]+offset,i_regs->regmap,dops[i].rt1,ccadj_,reglist);
3089 if (fastio_reg_override >= 0)
3090 a = fastio_reg_override;
3091 do_load_word(a, tl, offset_reg);
3094 add_stub_r(LOADW_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist);
3097 inline_readstub(LOADW_STUB,i,constmap[i][s]+offset,i_regs->regmap,dops[i].rt1,ccadj_,reglist);
3103 if (fastio_reg_override >= 0)
3104 a = fastio_reg_override;
3106 if (offset_reg >= 0)
3107 emit_ldrb_dualindexed(offset_reg, a, tl);
3109 emit_movzbl_indexed(0, a, tl);
3112 add_stub_r(LOADBU_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist);
3115 inline_readstub(LOADBU_STUB,i,constmap[i][s]+offset,i_regs->regmap,dops[i].rt1,ccadj_,reglist);
3121 if (fastio_reg_override >= 0)
3122 a = fastio_reg_override;
3123 if (offset_reg >= 0)
3124 emit_ldrh_dualindexed(offset_reg, a, tl);
3126 emit_movzwl_indexed(0, a, tl);
3129 add_stub_r(LOADHU_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist);
3132 inline_readstub(LOADHU_STUB,i,constmap[i][s]+offset,i_regs->regmap,dops[i].rt1,ccadj_,reglist);
3138 if (fastio_reg_override == HOST_TEMPREG || offset_reg == HOST_TEMPREG)
3139 host_tempreg_release();
3142 #ifndef loadlr_assemble
3143 static void loadlr_assemble(int i, const struct regstat *i_regs, int ccadj_)
3145 int addr = cinfo[i].addr;
3146 int s,tl,temp,temp2;
3149 int memtarget=0,c=0;
3150 int offset_reg = -1;
3151 int fastio_reg_override = -1;
3152 u_int reglist=get_host_reglist(i_regs->regmap);
3153 tl=get_reg_w(i_regs->regmap, dops[i].rt1);
3154 s=get_reg(i_regs->regmap,dops[i].rs1);
3155 temp=get_reg_temp(i_regs->regmap);
3156 temp2=get_reg(i_regs->regmap,FTEMP);
3157 offset=cinfo[i].imm;
3161 c=(i_regs->wasconst>>s)&1;
3163 memtarget=((signed int)(constmap[i][s]+offset))<(signed int)0x80000000+RAM_SIZE;
3167 emit_shlimm(addr,3,temp);
3168 if (dops[i].opcode==0x22||dops[i].opcode==0x26) {
3169 emit_andimm(addr,0xFFFFFFFC,temp2); // LWL/LWR
3171 emit_andimm(addr,0xFFFFFFF8,temp2); // LDL/LDR
3173 jaddr = emit_fastpath_cmp_jump(i, i_regs, temp2,
3174 &offset_reg, &fastio_reg_override, ccadj_);
3177 if (ram_offset && memtarget) {
3178 offset_reg = get_ro_reg(i_regs, 0);
3180 if (dops[i].opcode==0x22||dops[i].opcode==0x26) {
3181 emit_movimm(((constmap[i][s]+offset)<<3)&24,temp); // LWL/LWR
3183 emit_movimm(((constmap[i][s]+offset)<<3)&56,temp); // LDL/LDR
3186 if (dops[i].opcode==0x22||dops[i].opcode==0x26) { // LWL/LWR
3189 if (fastio_reg_override >= 0)
3190 a = fastio_reg_override;
3191 do_load_word(a, temp2, offset_reg);
3192 if (fastio_reg_override == HOST_TEMPREG || offset_reg == HOST_TEMPREG)
3193 host_tempreg_release();
3194 if(jaddr) add_stub_r(LOADW_STUB,jaddr,out,i,temp2,i_regs,ccadj_,reglist);
3197 inline_readstub(LOADW_STUB,i,(constmap[i][s]+offset)&0xFFFFFFFC,i_regs->regmap,FTEMP,ccadj_,reglist);
3200 emit_andimm(temp,24,temp);
3201 if (dops[i].opcode==0x22) // LWL
3202 emit_xorimm(temp,24,temp);
3203 host_tempreg_acquire();
3204 emit_movimm(-1,HOST_TEMPREG);
3205 if (dops[i].opcode==0x26) {
3206 emit_shr(temp2,temp,temp2);
3207 emit_bic_lsr(tl,HOST_TEMPREG,temp,tl);
3209 emit_shl(temp2,temp,temp2);
3210 emit_bic_lsl(tl,HOST_TEMPREG,temp,tl);
3212 host_tempreg_release();
3213 emit_or(temp2,tl,tl);
3215 //emit_storereg(dops[i].rt1,tl); // DEBUG
3217 if (dops[i].opcode==0x1A||dops[i].opcode==0x1B) { // LDL/LDR
3223 static void do_invstub(int n)
3226 assem_debug("do_invstub %x\n", start + stubs[n].e*4);
3227 u_int reglist = stubs[n].a;
3228 u_int addrr = stubs[n].b;
3229 int ofs_start = stubs[n].c;
3230 int ofs_end = stubs[n].d;
3231 int len = ofs_end - ofs_start;
3234 set_jump_target(stubs[n].addr, out);
3236 if (addrr != 0 || ofs_start != 0)
3237 emit_addimm(addrr, ofs_start, 0);
3238 emit_readword(&inv_code_start, 2);
3239 emit_readword(&inv_code_end, 3);
3241 emit_addimm(0, len + 4, (rightr = 1));
3243 emit_cmpcs(3, rightr);
3246 void *func = (len != 0)
3247 ? (void *)ndrc_write_invalidate_many
3248 : (void *)ndrc_write_invalidate_one;
3249 emit_far_call(func);
3250 set_jump_target(jaddr, out);
3251 restore_regs(reglist);
3252 emit_jmp(stubs[n].retaddr);
3255 static void do_store_smc_check(int i, const struct regstat *i_regs, u_int reglist, int addr)
3257 if (HACK_ENABLED(NDHACK_NO_SMC_CHECK))
3259 // this can't be used any more since we started to check exact
3260 // block boundaries in invalidate_range()
3261 //if (i_regs->waswritten & (1<<dops[i].rs1))
3263 // (naively) assume nobody will run code from stack
3264 if (dops[i].rs1 == 29)
3267 int j, imm_maxdiff = 32, imm_min = cinfo[i].imm, imm_max = cinfo[i].imm, count = 1;
3268 if (i < slen - 1 && dops[i+1].is_store && dops[i+1].rs1 == dops[i].rs1
3269 && abs(cinfo[i+1].imm - cinfo[i].imm) <= imm_maxdiff)
3271 for (j = i - 1; j >= 0; j--) {
3272 if (!dops[j].is_store || dops[j].rs1 != dops[i].rs1
3273 || abs(cinfo[j].imm - cinfo[j+1].imm) > imm_maxdiff)
3276 if (imm_min > cinfo[j].imm)
3277 imm_min = cinfo[j].imm;
3278 if (imm_max < cinfo[j].imm)
3279 imm_max = cinfo[j].imm;
3281 #if defined(HOST_IMM8)
3282 int ir = get_reg(i_regs->regmap, INVCP);
3284 host_tempreg_acquire();
3285 emit_ldrb_indexedsr12_reg(ir, addr, HOST_TEMPREG);
3287 emit_cmpmem_indexedsr12_imm(invalid_code, addr, 1);
3290 #ifdef INVALIDATE_USE_COND_CALL
3292 emit_cmpimm(HOST_TEMPREG, 1);
3293 emit_callne(invalidate_addr_reg[addr]);
3294 host_tempreg_release();
3298 void *jaddr = emit_cbz(HOST_TEMPREG, 0);
3299 host_tempreg_release();
3300 imm_min -= cinfo[i].imm;
3301 imm_max -= cinfo[i].imm;
3302 add_stub(INVCODE_STUB, jaddr, out, reglist|(1<<HOST_CCREG),
3303 addr, imm_min, imm_max, i);
3306 // determines if code overwrite checking is needed only
3307 // (also true non-existent 0x20000000 mirror that shouldn't matter)
3308 #define is_ram_addr(a) !((a) & 0x5f800000)
3310 static void store_assemble(int i, const struct regstat *i_regs, int ccadj_)
3313 int addr = cinfo[i].addr;
3316 enum stub_type type=0;
3317 int memtarget=0,c=0;
3318 int offset_reg = -1;
3319 int fastio_reg_override = -1;
3320 u_int addr_const = ~0;
3321 u_int reglist=get_host_reglist(i_regs->regmap);
3322 tl=get_reg(i_regs->regmap,dops[i].rs2);
3323 s=get_reg(i_regs->regmap,dops[i].rs1);
3324 offset=cinfo[i].imm;
3326 c=(i_regs->wasconst>>s)&1;
3328 addr_const = constmap[i][s] + offset;
3329 memtarget = ((signed int)addr_const) < (signed int)(0x80000000 + RAM_SIZE);
3334 if(i_regs->regmap[HOST_CCREG]==CCREG) reglist&=~(1<<HOST_CCREG);
3335 reglist |= 1u << addr;
3337 jaddr = emit_fastpath_cmp_jump(i, i_regs, addr,
3338 &offset_reg, &fastio_reg_override, ccadj_);
3340 else if (ram_offset && memtarget) {
3341 offset_reg = get_ro_reg(i_regs, 0);
3344 switch (dops[i].opcode) {
3348 if (fastio_reg_override >= 0)
3349 a = fastio_reg_override;
3350 do_store_byte(a, tl, offset_reg);
3357 if (fastio_reg_override >= 0)
3358 a = fastio_reg_override;
3359 do_store_hword(a, 0, tl, offset_reg, 1);
3366 if (fastio_reg_override >= 0)
3367 a = fastio_reg_override;
3368 do_store_word(a, 0, tl, offset_reg, 1);
3375 if (fastio_reg_override == HOST_TEMPREG || offset_reg == HOST_TEMPREG)
3376 host_tempreg_release();
3378 // PCSX store handlers don't check invcode again
3379 add_stub_r(type,jaddr,out,i,addr,i_regs,ccadj_,reglist);
3381 if (!c || is_ram_addr(addr_const))
3382 do_store_smc_check(i, i_regs, reglist, addr);
3383 if (c && !memtarget)
3384 inline_writestub(type, i, addr_const, i_regs->regmap, dops[i].rs2, ccadj_, reglist);
3385 // basic current block modification detection..
3386 // not looking back as that should be in mips cache already
3387 // (see Spyro2 title->attract mode)
3388 if (start + i*4 < addr_const && addr_const < start + slen*4) {
3389 SysPrintf("write to %08x hits block %08x, pc=%08x\n", addr_const, start, start+i*4);
3390 assert(i_regs->regmap==regs[i].regmap); // not delay slot
3391 if(i_regs->regmap==regs[i].regmap) {
3392 load_all_consts(regs[i].regmap_entry,regs[i].wasdirty,i);
3393 wb_dirtys(regs[i].regmap_entry,regs[i].wasdirty);
3394 emit_movimm(start+i*4+4,0);
3395 emit_writeword(0,&pcaddr);
3396 emit_addimm(HOST_CCREG,2,HOST_CCREG);
3397 emit_far_call(ndrc_get_addr_ht);
3403 static void storelr_assemble(int i, const struct regstat *i_regs, int ccadj_)
3405 int addr = cinfo[i].addr;
3409 void *case1, *case23, *case3;
3410 void *done0, *done1, *done2;
3411 int memtarget=0,c=0;
3412 int offset_reg = -1;
3413 u_int addr_const = ~0;
3414 u_int reglist = get_host_reglist(i_regs->regmap);
3415 tl=get_reg(i_regs->regmap,dops[i].rs2);
3416 s=get_reg(i_regs->regmap,dops[i].rs1);
3417 offset=cinfo[i].imm;
3419 c = (i_regs->isconst >> s) & 1;
3421 addr_const = constmap[i][s] + offset;
3422 memtarget = ((signed int)addr_const) < (signed int)(0x80000000 + RAM_SIZE);
3427 reglist |= 1u << addr;
3429 emit_cmpimm(addr, RAM_SIZE);
3435 if(!memtarget||!dops[i].rs1) {
3441 offset_reg = get_ro_reg(i_regs, 0);
3443 emit_testimm(addr,2);
3446 emit_testimm(addr,1);
3450 if (dops[i].opcode == 0x2A) { // SWL
3451 // Write msb into least significant byte
3452 if (dops[i].rs2) emit_rorimm(tl, 24, tl);
3453 do_store_byte(addr, tl, offset_reg);
3454 if (dops[i].rs2) emit_rorimm(tl, 8, tl);
3456 else if (dops[i].opcode == 0x2E) { // SWR
3457 // Write entire word
3458 do_store_word(addr, 0, tl, offset_reg, 1);
3463 set_jump_target(case1, out);
3464 if (dops[i].opcode == 0x2A) { // SWL
3465 // Write two msb into two least significant bytes
3466 if (dops[i].rs2) emit_rorimm(tl, 16, tl);
3467 do_store_hword(addr, -1, tl, offset_reg, 1);
3468 if (dops[i].rs2) emit_rorimm(tl, 16, tl);
3470 else if (dops[i].opcode == 0x2E) { // SWR
3471 // Write 3 lsb into three most significant bytes
3472 do_store_byte(addr, tl, offset_reg);
3473 if (dops[i].rs2) emit_rorimm(tl, 8, tl);
3474 do_store_hword(addr, 1, tl, offset_reg, 1);
3475 if (dops[i].rs2) emit_rorimm(tl, 24, tl);
3480 set_jump_target(case23, out);
3481 emit_testimm(addr,1);
3485 if (dops[i].opcode==0x2A) { // SWL
3486 // Write 3 msb into three least significant bytes
3487 if (dops[i].rs2) emit_rorimm(tl, 8, tl);
3488 do_store_hword(addr, -2, tl, offset_reg, 1);
3489 if (dops[i].rs2) emit_rorimm(tl, 16, tl);
3490 do_store_byte(addr, tl, offset_reg);
3491 if (dops[i].rs2) emit_rorimm(tl, 8, tl);
3493 else if (dops[i].opcode == 0x2E) { // SWR
3494 // Write two lsb into two most significant bytes
3495 do_store_hword(addr, 0, tl, offset_reg, 1);
3500 set_jump_target(case3, out);
3501 if (dops[i].opcode == 0x2A) { // SWL
3502 do_store_word(addr, -3, tl, offset_reg, 1);
3504 else if (dops[i].opcode == 0x2E) { // SWR
3505 do_store_byte(addr, tl, offset_reg);
3507 set_jump_target(done0, out);
3508 set_jump_target(done1, out);
3509 set_jump_target(done2, out);
3510 if (offset_reg == HOST_TEMPREG)
3511 host_tempreg_release();
3512 if (!c || !memtarget)
3513 add_stub_r(STORELR_STUB,jaddr,out,i,addr,i_regs,ccadj_,reglist);
3514 if (!c || is_ram_addr(addr_const))
3515 do_store_smc_check(i, i_regs, reglist, addr);
3518 static void cop0_assemble(int i, const struct regstat *i_regs, int ccadj_)
3520 if(dops[i].opcode2==0) // MFC0
3522 signed char t=get_reg_w(i_regs->regmap, dops[i].rt1);
3523 u_int copr=(source[i]>>11)&0x1f;
3524 if(t>=0&&dops[i].rt1!=0) {
3525 emit_readword(®_cop0[copr],t);
3528 else if(dops[i].opcode2==4) // MTC0
3530 int s = get_reg(i_regs->regmap, dops[i].rs1);
3531 int cc = get_reg(i_regs->regmap, CCREG);
3532 char copr=(source[i]>>11)&0x1f;
3534 wb_register(dops[i].rs1,i_regs->regmap,i_regs->dirty);
3535 if (copr == 12 || copr == 13) {
3536 emit_readword(&last_count,HOST_TEMPREG);
3537 if (cc != HOST_CCREG)
3538 emit_loadreg(CCREG, HOST_CCREG);
3539 emit_add(HOST_CCREG, HOST_TEMPREG, HOST_CCREG);
3540 emit_addimm(HOST_CCREG, ccadj_ + 2, HOST_CCREG);
3541 emit_writeword(HOST_CCREG, &psxRegs.cycle);
3543 // burn cycles to cause cc_interrupt, which will
3544 // reschedule next_interupt. Relies on CCREG from above.
3545 assem_debug("MTC0 DS %d\n", copr);
3546 emit_writeword(HOST_CCREG,&last_count);
3547 emit_movimm(0,HOST_CCREG);
3548 emit_storereg(CCREG,HOST_CCREG);
3549 emit_loadreg(dops[i].rs1,1);
3550 emit_movimm(copr,0);
3551 emit_far_call(pcsx_mtc0_ds);
3552 emit_loadreg(dops[i].rs1,s);
3555 emit_movimm(start+i*4+4,HOST_TEMPREG);
3556 emit_writeword(HOST_TEMPREG,&pcaddr);
3557 emit_movimm(0,HOST_TEMPREG);
3558 emit_writeword(HOST_TEMPREG,&pending_exception);
3562 emit_movimm(copr, 0);
3563 emit_far_call(pcsx_mtc0);
3564 if (copr == 12 || copr == 13) {
3565 emit_readword(&psxRegs.cycle,HOST_CCREG);
3566 emit_readword(&last_count,HOST_TEMPREG);
3567 emit_sub(HOST_CCREG,HOST_TEMPREG,HOST_CCREG);
3568 //emit_writeword(HOST_TEMPREG,&last_count);
3569 assert(!is_delayslot);
3570 emit_readword(&pending_exception,HOST_TEMPREG);
3571 emit_test(HOST_TEMPREG,HOST_TEMPREG);
3574 emit_readword(&pcaddr, 0);
3575 emit_far_call(ndrc_get_addr_ht);
3577 set_jump_target(jaddr, out);
3578 emit_addimm(HOST_CCREG, -ccadj_ - 2, HOST_CCREG);
3579 if (cc != HOST_CCREG)
3580 emit_storereg(CCREG, HOST_CCREG);
3582 emit_loadreg(dops[i].rs1,s);
3586 static void rfe_assemble(int i, const struct regstat *i_regs)
3588 emit_readword(&psxRegs.CP0.n.SR, 0);
3589 emit_andimm(0, 0x3c, 1);
3590 emit_andimm(0, ~0xf, 0);
3591 emit_orrshr_imm(1, 2, 0);
3592 emit_writeword(0, &psxRegs.CP0.n.SR);
3595 static int cop2_is_stalling_op(int i, int *cycles)
3597 if (dops[i].opcode == 0x3a) { // SWC2
3601 if (dops[i].itype == COP2 && (dops[i].opcode2 == 0 || dops[i].opcode2 == 2)) { // MFC2/CFC2
3605 if (dops[i].itype == C2OP) {
3606 *cycles = gte_cycletab[source[i] & 0x3f];
3609 // ... what about MTC2/CTC2/LWC2?
3614 static void log_gte_stall(int stall, u_int cycle)
3616 if ((u_int)stall <= 44)
3617 printf("x stall %2d %u\n", stall, cycle + last_count);
3620 static void emit_log_gte_stall(int i, int stall, u_int reglist)
3624 emit_movimm(stall, 0);
3626 emit_mov(HOST_TEMPREG, 0);
3627 emit_addimm(HOST_CCREG, cinfo[i].ccadj, 1);
3628 emit_far_call(log_gte_stall);
3629 restore_regs(reglist);
3633 static void cop2_do_stall_check(u_int op, int i, const struct regstat *i_regs, u_int reglist)
3635 int j = i, other_gte_op_cycles = -1, stall = -MAXBLOCK, cycles_passed;
3636 int rtmp = reglist_find_free(reglist);
3638 if (HACK_ENABLED(NDHACK_NO_STALLS))
3640 if (get_reg(i_regs->regmap, CCREG) != HOST_CCREG) {
3641 // happens occasionally... cc evicted? Don't bother then
3642 //printf("no cc %08x\n", start + i*4);
3646 for (j = i - 1; j >= 0; j--) {
3647 //if (dops[j].is_ds) break;
3648 if (cop2_is_stalling_op(j, &other_gte_op_cycles) || dops[j].bt)
3650 if (j > 0 && cinfo[j - 1].ccadj > cinfo[j].ccadj)
3655 cycles_passed = cinfo[i].ccadj - cinfo[j].ccadj;
3656 if (other_gte_op_cycles >= 0)
3657 stall = other_gte_op_cycles - cycles_passed;
3658 else if (cycles_passed >= 44)
3659 stall = 0; // can't stall
3660 if (stall == -MAXBLOCK && rtmp >= 0) {
3661 // unknown stall, do the expensive runtime check
3662 assem_debug("; cop2_do_stall_check\n");
3665 emit_movimm(gte_cycletab[op], 0);
3666 emit_addimm(HOST_CCREG, cinfo[i].ccadj, 1);
3667 emit_far_call(call_gteStall);
3668 restore_regs(reglist);
3670 host_tempreg_acquire();
3671 emit_readword(&psxRegs.gteBusyCycle, rtmp);
3672 emit_addimm(rtmp, -cinfo[i].ccadj, rtmp);
3673 emit_sub(rtmp, HOST_CCREG, HOST_TEMPREG);
3674 emit_cmpimm(HOST_TEMPREG, 44);
3675 emit_cmovb_reg(rtmp, HOST_CCREG);
3676 //emit_log_gte_stall(i, 0, reglist);
3677 host_tempreg_release();
3680 else if (stall > 0) {
3681 //emit_log_gte_stall(i, stall, reglist);
3682 emit_addimm(HOST_CCREG, stall, HOST_CCREG);
3685 // save gteBusyCycle, if needed
3686 if (gte_cycletab[op] == 0)
3688 other_gte_op_cycles = -1;
3689 for (j = i + 1; j < slen; j++) {
3690 if (cop2_is_stalling_op(j, &other_gte_op_cycles))
3692 if (dops[j].is_jump) {
3694 if (j + 1 < slen && cop2_is_stalling_op(j + 1, &other_gte_op_cycles))
3699 if (other_gte_op_cycles >= 0)
3700 // will handle stall when assembling that op
3702 cycles_passed = cinfo[min(j, slen -1)].ccadj - cinfo[i].ccadj;
3703 if (cycles_passed >= 44)
3705 assem_debug("; save gteBusyCycle\n");
3706 host_tempreg_acquire();
3708 emit_readword(&last_count, HOST_TEMPREG);
3709 emit_add(HOST_TEMPREG, HOST_CCREG, HOST_TEMPREG);
3710 emit_addimm(HOST_TEMPREG, cinfo[i].ccadj, HOST_TEMPREG);
3711 emit_addimm(HOST_TEMPREG, gte_cycletab[op]), HOST_TEMPREG);
3712 emit_writeword(HOST_TEMPREG, &psxRegs.gteBusyCycle);
3714 emit_addimm(HOST_CCREG, cinfo[i].ccadj + gte_cycletab[op], HOST_TEMPREG);
3715 emit_writeword(HOST_TEMPREG, &psxRegs.gteBusyCycle);
3717 host_tempreg_release();
3720 static int is_mflohi(int i)
3722 return (dops[i].itype == MOV && (dops[i].rs1 == HIREG || dops[i].rs1 == LOREG));
3725 static int check_multdiv(int i, int *cycles)
3727 if (dops[i].itype != MULTDIV)
3729 if (dops[i].opcode2 == 0x18 || dops[i].opcode2 == 0x19) // MULT(U)
3730 *cycles = 11; // approx from 7 11 14
3736 static void multdiv_prepare_stall(int i, const struct regstat *i_regs, int ccadj_)
3738 int j, found = 0, c = 0;
3739 if (HACK_ENABLED(NDHACK_NO_STALLS))
3741 if (get_reg(i_regs->regmap, CCREG) != HOST_CCREG) {
3742 // happens occasionally... cc evicted? Don't bother then
3745 for (j = i + 1; j < slen; j++) {
3748 if ((found = is_mflohi(j)))
3750 if (dops[j].is_jump) {
3752 if (j + 1 < slen && (found = is_mflohi(j + 1)))
3758 // handle all in multdiv_do_stall()
3760 check_multdiv(i, &c);
3762 assem_debug("; muldiv prepare stall %d\n", c);
3763 host_tempreg_acquire();
3764 emit_addimm(HOST_CCREG, ccadj_ + c, HOST_TEMPREG);
3765 emit_writeword(HOST_TEMPREG, &psxRegs.muldivBusyCycle);
3766 host_tempreg_release();
3769 static void multdiv_do_stall(int i, const struct regstat *i_regs)
3771 int j, known_cycles = 0;
3772 u_int reglist = get_host_reglist(i_regs->regmap);
3773 int rtmp = get_reg_temp(i_regs->regmap);
3775 rtmp = reglist_find_free(reglist);
3776 if (HACK_ENABLED(NDHACK_NO_STALLS))
3778 if (get_reg(i_regs->regmap, CCREG) != HOST_CCREG || rtmp < 0) {
3779 // happens occasionally... cc evicted? Don't bother then
3780 //printf("no cc/rtmp %08x\n", start + i*4);
3784 for (j = i - 1; j >= 0; j--) {
3785 if (dops[j].is_ds) break;
3786 if (check_multdiv(j, &known_cycles))
3789 // already handled by this op
3791 if (dops[j].bt || (j > 0 && cinfo[j - 1].ccadj > cinfo[j].ccadj))
3796 if (known_cycles > 0) {
3797 known_cycles -= cinfo[i].ccadj - cinfo[j].ccadj;
3798 assem_debug("; muldiv stall resolved %d\n", known_cycles);
3799 if (known_cycles > 0)
3800 emit_addimm(HOST_CCREG, known_cycles, HOST_CCREG);
3803 assem_debug("; muldiv stall unresolved\n");
3804 host_tempreg_acquire();
3805 emit_readword(&psxRegs.muldivBusyCycle, rtmp);
3806 emit_addimm(rtmp, -cinfo[i].ccadj, rtmp);
3807 emit_sub(rtmp, HOST_CCREG, HOST_TEMPREG);
3808 emit_cmpimm(HOST_TEMPREG, 37);
3809 emit_cmovb_reg(rtmp, HOST_CCREG);
3810 //emit_log_gte_stall(i, 0, reglist);
3811 host_tempreg_release();
3814 static void cop2_get_dreg(u_int copr,signed char tl,signed char temp)
3824 emit_readword(®_cop2d[copr],tl);
3825 emit_signextend16(tl,tl);
3826 emit_writeword(tl,®_cop2d[copr]); // hmh
3833 emit_readword(®_cop2d[copr],tl);
3834 emit_andimm(tl,0xffff,tl);
3835 emit_writeword(tl,®_cop2d[copr]);
3838 emit_readword(®_cop2d[14],tl); // SXY2
3839 emit_writeword(tl,®_cop2d[copr]);
3843 c2op_mfc2_29_assemble(tl,temp);
3846 emit_readword(®_cop2d[copr],tl);
3851 static void cop2_put_dreg(u_int copr,signed char sl,signed char temp)
3855 emit_readword(®_cop2d[13],temp); // SXY1
3856 emit_writeword(sl,®_cop2d[copr]);
3857 emit_writeword(temp,®_cop2d[12]); // SXY0
3858 emit_readword(®_cop2d[14],temp); // SXY2
3859 emit_writeword(sl,®_cop2d[14]);
3860 emit_writeword(temp,®_cop2d[13]); // SXY1
3863 emit_andimm(sl,0x001f,temp);
3864 emit_shlimm(temp,7,temp);
3865 emit_writeword(temp,®_cop2d[9]);
3866 emit_andimm(sl,0x03e0,temp);
3867 emit_shlimm(temp,2,temp);
3868 emit_writeword(temp,®_cop2d[10]);
3869 emit_andimm(sl,0x7c00,temp);
3870 emit_shrimm(temp,3,temp);
3871 emit_writeword(temp,®_cop2d[11]);
3872 emit_writeword(sl,®_cop2d[28]);
3875 emit_xorsar_imm(sl,sl,31,temp);
3876 #if defined(HAVE_ARMV5) || defined(__aarch64__)
3877 emit_clz(temp,temp);
3879 emit_movs(temp,HOST_TEMPREG);
3880 emit_movimm(0,temp);
3881 emit_jeq((int)out+4*4);
3882 emit_addpl_imm(temp,1,temp);
3883 emit_lslpls_imm(HOST_TEMPREG,1,HOST_TEMPREG);
3884 emit_jns((int)out-2*4);
3886 emit_writeword(sl,®_cop2d[30]);
3887 emit_writeword(temp,®_cop2d[31]);
3892 emit_writeword(sl,®_cop2d[copr]);
3897 static void c2ls_assemble(int i, const struct regstat *i_regs, int ccadj_)
3902 int memtarget=0,c=0;
3904 enum stub_type type;
3905 int offset_reg = -1;
3906 int fastio_reg_override = -1;
3907 u_int addr_const = ~0;
3908 u_int reglist=get_host_reglist(i_regs->regmap);
3909 u_int copr=(source[i]>>16)&0x1f;
3910 s=get_reg(i_regs->regmap,dops[i].rs1);
3911 tl=get_reg(i_regs->regmap,FTEMP);
3912 offset=cinfo[i].imm;
3915 if(i_regs->regmap[HOST_CCREG]==CCREG)
3916 reglist&=~(1<<HOST_CCREG);
3921 if (dops[i].opcode==0x3a) { // SWC2
3925 c = (i_regs->isconst >> s) & 1;
3927 addr_const = constmap[i][s] + offset;
3928 memtarget = ((signed int)addr_const) < (signed int)(0x80000000 + RAM_SIZE);
3932 cop2_do_stall_check(0, i, i_regs, reglist);
3934 if (dops[i].opcode==0x3a) { // SWC2
3935 cop2_get_dreg(copr,tl,-1);
3943 emit_jmp(0); // inline_readstub/inline_writestub?
3947 jaddr2 = emit_fastpath_cmp_jump(i, i_regs, ar,
3948 &offset_reg, &fastio_reg_override, ccadj_);
3950 else if (ram_offset && memtarget) {
3951 offset_reg = get_ro_reg(i_regs, 0);
3953 switch (dops[i].opcode) {
3954 case 0x32: { // LWC2
3956 if (fastio_reg_override >= 0)
3957 a = fastio_reg_override;
3958 do_load_word(a, tl, offset_reg);
3961 case 0x3a: { // SWC2
3962 #ifdef DESTRUCTIVE_SHIFT
3963 if(!offset&&!c&&s>=0) emit_mov(s,ar);
3966 if (fastio_reg_override >= 0)
3967 a = fastio_reg_override;
3968 do_store_word(a, 0, tl, offset_reg, 1);
3975 if (fastio_reg_override == HOST_TEMPREG || offset_reg == HOST_TEMPREG)
3976 host_tempreg_release();
3978 add_stub_r(type,jaddr2,out,i,ar,i_regs,ccadj_,reglist);
3979 if (dops[i].opcode == 0x3a && (!c || is_ram_addr(addr_const))) // SWC2
3980 do_store_smc_check(i, i_regs, reglist, ar);
3981 if (dops[i].opcode == 0x32) { // LWC2
3982 host_tempreg_acquire();
3983 cop2_put_dreg(copr,tl,HOST_TEMPREG);
3984 host_tempreg_release();
3988 static void cop2_assemble(int i, const struct regstat *i_regs)
3990 u_int copr = (source[i]>>11) & 0x1f;
3991 signed char temp = get_reg_temp(i_regs->regmap);
3993 if (!HACK_ENABLED(NDHACK_NO_STALLS)) {
3994 u_int reglist = reglist_exclude(get_host_reglist(i_regs->regmap), temp, -1);
3995 if (dops[i].opcode2 == 0 || dops[i].opcode2 == 2) { // MFC2/CFC2
3996 signed char tl = get_reg(i_regs->regmap, dops[i].rt1);
3997 reglist = reglist_exclude(reglist, tl, -1);
3999 cop2_do_stall_check(0, i, i_regs, reglist);
4001 if (dops[i].opcode2==0) { // MFC2
4002 signed char tl=get_reg_w(i_regs->regmap, dops[i].rt1);
4003 if(tl>=0&&dops[i].rt1!=0)
4004 cop2_get_dreg(copr,tl,temp);
4006 else if (dops[i].opcode2==4) { // MTC2
4007 signed char sl=get_reg(i_regs->regmap,dops[i].rs1);
4008 cop2_put_dreg(copr,sl,temp);
4010 else if (dops[i].opcode2==2) // CFC2
4012 signed char tl=get_reg_w(i_regs->regmap, dops[i].rt1);
4013 if(tl>=0&&dops[i].rt1!=0)
4014 emit_readword(®_cop2c[copr],tl);
4016 else if (dops[i].opcode2==6) // CTC2
4018 signed char sl=get_reg(i_regs->regmap,dops[i].rs1);
4027 emit_signextend16(sl,temp);
4030 c2op_ctc2_31_assemble(sl,temp);
4036 emit_writeword(temp,®_cop2c[copr]);
4041 static void do_unalignedwritestub(int n)
4043 assem_debug("do_unalignedwritestub %x\n",start+stubs[n].a*4);
4045 set_jump_target(stubs[n].addr, out);
4048 struct regstat *i_regs=(struct regstat *)stubs[n].c;
4049 int addr=stubs[n].b;
4050 u_int reglist=stubs[n].e;
4051 signed char *i_regmap=i_regs->regmap;
4052 int temp2=get_reg(i_regmap,FTEMP);
4054 rt=get_reg(i_regmap,dops[i].rs2);
4057 assert(dops[i].opcode==0x2a||dops[i].opcode==0x2e); // SWL/SWR only implemented
4059 reglist&=~(1<<temp2);
4061 // don't bother with it and call write handler
4064 int cc=get_reg(i_regmap,CCREG);
4066 emit_loadreg(CCREG,2);
4067 emit_addimm(cc<0?2:cc,(int)stubs[n].d+1,2);
4068 emit_movimm(start + i*4,3);
4069 emit_writeword(3,&psxRegs.pc);
4070 emit_far_call((dops[i].opcode==0x2a?jump_handle_swl:jump_handle_swr));
4071 emit_addimm(0,-((int)stubs[n].d+1),cc<0?2:cc);
4073 emit_storereg(CCREG,2);
4074 restore_regs(reglist);
4075 emit_jmp(stubs[n].retaddr); // return address
4078 static void do_overflowstub(int n)
4080 assem_debug("do_overflowstub %x\n", start + (u_int)stubs[n].a * 4);
4083 struct regstat *i_regs = (struct regstat *)stubs[n].c;
4084 int ccadj = stubs[n].d;
4085 set_jump_target(stubs[n].addr, out);
4086 wb_dirtys(regs[i].regmap, regs[i].dirty);
4087 exception_assemble(i, i_regs, ccadj);
4090 static void do_alignmentstub(int n)
4092 assem_debug("do_alignmentstub %x\n", start + (u_int)stubs[n].a * 4);
4095 struct regstat *i_regs = (struct regstat *)stubs[n].c;
4096 int ccadj = stubs[n].d;
4097 int is_store = dops[i].itype == STORE || dops[i].opcode == 0x3A; // SWC2
4098 int cause = (dops[i].opcode & 3) << 28;
4099 cause |= is_store ? (R3000E_AdES << 2) : (R3000E_AdEL << 2);
4100 set_jump_target(stubs[n].addr, out);
4101 wb_dirtys(regs[i].regmap, regs[i].dirty);
4102 if (stubs[n].b != 1)
4103 emit_mov(stubs[n].b, 1); // faulting address
4104 emit_movimm(cause, 0);
4105 exception_assemble(i, i_regs, ccadj);
4108 #ifndef multdiv_assemble
4109 void multdiv_assemble(int i,struct regstat *i_regs)
4111 printf("Need multdiv_assemble for this architecture.\n");
4116 static void mov_assemble(int i, const struct regstat *i_regs)
4118 //if(dops[i].opcode2==0x10||dops[i].opcode2==0x12) { // MFHI/MFLO
4119 //if(dops[i].opcode2==0x11||dops[i].opcode2==0x13) { // MTHI/MTLO
4122 tl=get_reg_w(i_regs->regmap, dops[i].rt1);
4125 sl=get_reg(i_regs->regmap,dops[i].rs1);
4126 if(sl>=0) emit_mov(sl,tl);
4127 else emit_loadreg(dops[i].rs1,tl);
4130 if (dops[i].rs1 == HIREG || dops[i].rs1 == LOREG) // MFHI/MFLO
4131 multdiv_do_stall(i, i_regs);
4134 // call interpreter, exception handler, things that change pc/regs/cycles ...
4135 static void call_c_cpu_handler(int i, const struct regstat *i_regs, int ccadj_, u_int pc, void *func)
4137 signed char ccreg=get_reg(i_regs->regmap,CCREG);
4138 assert(ccreg==HOST_CCREG);
4139 assert(!is_delayslot);
4142 emit_movimm(pc,3); // Get PC
4143 emit_readword(&last_count,2);
4144 emit_writeword(3,&psxRegs.pc);
4145 emit_addimm(HOST_CCREG,ccadj_,HOST_CCREG);
4146 emit_add(2,HOST_CCREG,2);
4147 emit_writeword(2,&psxRegs.cycle);
4148 emit_addimm_ptr(FP,(u_char *)&psxRegs - (u_char *)&dynarec_local,0);
4149 emit_far_call(func);
4150 emit_far_jump(jump_to_new_pc);
4153 static void exception_assemble(int i, const struct regstat *i_regs, int ccadj_)
4155 // 'break' tends to be littered around to catch things like
4156 // division by 0 and is almost never executed, so don't emit much code here
4158 if (dops[i].itype == ALU || dops[i].itype == IMM16)
4159 func = is_delayslot ? jump_overflow_ds : jump_overflow;
4160 else if (dops[i].itype == LOAD || dops[i].itype == STORE)
4161 func = is_delayslot ? jump_addrerror_ds : jump_addrerror;
4162 else if (dops[i].opcode2 == 0x0C)
4163 func = is_delayslot ? jump_syscall_ds : jump_syscall;
4165 func = is_delayslot ? jump_break_ds : jump_break;
4166 if (get_reg(i_regs->regmap, CCREG) != HOST_CCREG) // evicted
4167 emit_loadreg(CCREG, HOST_CCREG);
4168 emit_movimm(start + i*4, 2); // pc
4169 emit_addimm(HOST_CCREG, ccadj_ + CLOCK_ADJUST(1), HOST_CCREG);
4170 emit_far_jump(func);
4173 static void hlecall_bad()
4178 static void hlecall_assemble(int i, const struct regstat *i_regs, int ccadj_)
4180 void *hlefunc = hlecall_bad;
4181 uint32_t hleCode = source[i] & 0x03ffffff;
4182 if (hleCode < ARRAY_SIZE(psxHLEt))
4183 hlefunc = psxHLEt[hleCode];
4185 call_c_cpu_handler(i, i_regs, ccadj_, start + i*4+4, hlefunc);
4188 static void intcall_assemble(int i, const struct regstat *i_regs, int ccadj_)
4190 call_c_cpu_handler(i, i_regs, ccadj_, start + i*4, execI);
4193 static void speculate_mov(int rs,int rt)
4196 smrv_strong_next|=1<<rt;
4201 static void speculate_mov_weak(int rs,int rt)
4204 smrv_weak_next|=1<<rt;
4209 static void speculate_register_values(int i)
4212 memcpy(smrv,psxRegs.GPR.r,sizeof(smrv));
4213 // gp,sp are likely to stay the same throughout the block
4214 smrv_strong_next=(1<<28)|(1<<29)|(1<<30);
4215 smrv_weak_next=~smrv_strong_next;
4216 //printf(" llr %08x\n", smrv[4]);
4218 smrv_strong=smrv_strong_next;
4219 smrv_weak=smrv_weak_next;
4220 switch(dops[i].itype) {
4222 if ((smrv_strong>>dops[i].rs1)&1) speculate_mov(dops[i].rs1,dops[i].rt1);
4223 else if((smrv_strong>>dops[i].rs2)&1) speculate_mov(dops[i].rs2,dops[i].rt1);
4224 else if((smrv_weak>>dops[i].rs1)&1) speculate_mov_weak(dops[i].rs1,dops[i].rt1);
4225 else if((smrv_weak>>dops[i].rs2)&1) speculate_mov_weak(dops[i].rs2,dops[i].rt1);
4227 smrv_strong_next&=~(1<<dops[i].rt1);
4228 smrv_weak_next&=~(1<<dops[i].rt1);
4232 smrv_strong_next&=~(1<<dops[i].rt1);
4233 smrv_weak_next&=~(1<<dops[i].rt1);
4236 if(dops[i].rt1&&is_const(®s[i],dops[i].rt1)) {
4237 int hr = get_reg_w(regs[i].regmap, dops[i].rt1);
4240 if(get_final_value(hr,i,&value))
4241 smrv[dops[i].rt1]=value;
4242 else smrv[dops[i].rt1]=constmap[i][hr];
4243 smrv_strong_next|=1<<dops[i].rt1;
4247 if ((smrv_strong>>dops[i].rs1)&1) speculate_mov(dops[i].rs1,dops[i].rt1);
4248 else if((smrv_weak>>dops[i].rs1)&1) speculate_mov_weak(dops[i].rs1,dops[i].rt1);
4252 if(start<0x2000&&(dops[i].rt1==26||(smrv[dops[i].rt1]>>24)==0xa0)) {
4253 // special case for BIOS
4254 smrv[dops[i].rt1]=0xa0000000;
4255 smrv_strong_next|=1<<dops[i].rt1;
4262 smrv_strong_next&=~(1<<dops[i].rt1);
4263 smrv_weak_next&=~(1<<dops[i].rt1);
4267 if(dops[i].opcode2==0||dops[i].opcode2==2) { // MFC/CFC
4268 smrv_strong_next&=~(1<<dops[i].rt1);
4269 smrv_weak_next&=~(1<<dops[i].rt1);
4273 if (dops[i].opcode==0x32) { // LWC2
4274 smrv_strong_next&=~(1<<dops[i].rt1);
4275 smrv_weak_next&=~(1<<dops[i].rt1);
4281 printf("x %08x %08x %d %d c %08x %08x\n",smrv[r],start+i*4,
4282 ((smrv_strong>>r)&1),(smrv_weak>>r)&1,regs[i].isconst,regs[i].wasconst);
4286 static void ujump_assemble(int i, const struct regstat *i_regs);
4287 static void rjump_assemble(int i, const struct regstat *i_regs);
4288 static void cjump_assemble(int i, const struct regstat *i_regs);
4289 static void sjump_assemble(int i, const struct regstat *i_regs);
4291 static int assemble(int i, const struct regstat *i_regs, int ccadj_)
4294 switch (dops[i].itype) {
4296 alu_assemble(i, i_regs, ccadj_);
4299 imm16_assemble(i, i_regs, ccadj_);
4302 shift_assemble(i, i_regs);
4305 shiftimm_assemble(i, i_regs);
4308 load_assemble(i, i_regs, ccadj_);
4311 loadlr_assemble(i, i_regs, ccadj_);
4314 store_assemble(i, i_regs, ccadj_);
4317 storelr_assemble(i, i_regs, ccadj_);
4320 cop0_assemble(i, i_regs, ccadj_);
4323 rfe_assemble(i, i_regs);
4326 cop2_assemble(i, i_regs);
4329 c2ls_assemble(i, i_regs, ccadj_);
4332 c2op_assemble(i, i_regs);
4335 multdiv_assemble(i, i_regs);
4336 multdiv_prepare_stall(i, i_regs, ccadj_);
4339 mov_assemble(i, i_regs);
4342 exception_assemble(i, i_regs, ccadj_);
4345 hlecall_assemble(i, i_regs, ccadj_);
4348 intcall_assemble(i, i_regs, ccadj_);
4351 ujump_assemble(i, i_regs);
4355 rjump_assemble(i, i_regs);
4359 cjump_assemble(i, i_regs);
4363 sjump_assemble(i, i_regs);
4368 // not handled, just skip
4376 static void ds_assemble(int i, const struct regstat *i_regs)
4378 speculate_register_values(i);
4380 switch (dops[i].itype) {
4388 SysPrintf("Jump in the delay slot. This is probably a bug.\n");
4391 assemble(i, i_regs, cinfo[i].ccadj);
4396 // Is the branch target a valid internal jump?
4397 static int internal_branch(int addr)
4399 if(addr&1) return 0; // Indirect (register) jump
4400 if(addr>=start && addr<start+slen*4-4)
4407 static void wb_invalidate(signed char pre[],signed char entry[],uint64_t dirty,uint64_t u)
4410 for(hr=0;hr<HOST_REGS;hr++) {
4411 if(hr!=EXCLUDE_REG) {
4412 if(pre[hr]!=entry[hr]) {
4415 if(get_reg(entry,pre[hr])<0) {
4417 if(!((u>>pre[hr])&1))
4418 emit_storereg(pre[hr],hr);
4425 // Move from one register to another (no writeback)
4426 for(hr=0;hr<HOST_REGS;hr++) {
4427 if(hr!=EXCLUDE_REG) {
4428 if(pre[hr]!=entry[hr]) {
4429 if(pre[hr]>=0&&pre[hr]<TEMPREG) {
4431 if((nr=get_reg(entry,pre[hr]))>=0) {
4440 // Load the specified registers
4441 // This only loads the registers given as arguments because
4442 // we don't want to load things that will be overwritten
4443 static inline void load_reg(signed char entry[], signed char regmap[], int rs)
4445 int hr = get_reg(regmap, rs);
4446 if (hr >= 0 && entry[hr] != regmap[hr])
4447 emit_loadreg(regmap[hr], hr);
4450 static void load_regs(signed char entry[], signed char regmap[], int rs1, int rs2)
4452 load_reg(entry, regmap, rs1);
4454 load_reg(entry, regmap, rs2);
4457 // Load registers prior to the start of a loop
4458 // so that they are not loaded within the loop
4459 static void loop_preload(signed char pre[],signed char entry[])
4462 for (hr = 0; hr < HOST_REGS; hr++) {
4464 if (r >= 0 && pre[hr] != r && get_reg(pre, r) < 0) {
4465 assem_debug("loop preload:\n");
4467 emit_loadreg(r, hr);
4472 // Generate address for load/store instruction
4473 // goes to AGEN (or temp) for writes, FTEMP for LOADLR and cop1/2 loads
4474 // AGEN is assigned by pass5b_preallocate2
4475 static void address_generation(int i, const struct regstat *i_regs, signed char entry[])
4477 if (dops[i].is_load || dops[i].is_store) {
4479 int agr = AGEN1 + (i&1);
4480 if(dops[i].itype==LOAD) {
4481 if (!dops[i].may_except)
4482 ra = get_reg_w(i_regs->regmap, dops[i].rt1); // reuse dest for agen
4484 ra = get_reg_temp(i_regs->regmap);
4486 if(dops[i].itype==LOADLR) {
4487 ra=get_reg(i_regs->regmap,FTEMP);
4489 if(dops[i].itype==STORE||dops[i].itype==STORELR) {
4490 ra=get_reg(i_regs->regmap,agr);
4491 if(ra<0) ra=get_reg_temp(i_regs->regmap);
4493 if(dops[i].itype==C2LS) {
4494 if (dops[i].opcode == 0x32) // LWC2
4495 ra=get_reg(i_regs->regmap,FTEMP);
4497 ra=get_reg(i_regs->regmap,agr);
4498 if(ra<0) ra=get_reg_temp(i_regs->regmap);
4501 int rs = get_reg(i_regs->regmap, dops[i].rs1);
4504 int offset = cinfo[i].imm;
4505 int add_offset = offset != 0;
4506 int c = rs >= 0 && ((i_regs->wasconst >> rs) & 1);
4507 if(dops[i].rs1==0) {
4508 // Using r0 as a base address
4510 if(!entry||entry[ra]!=agr) {
4511 if (dops[i].opcode==0x22||dops[i].opcode==0x26) {
4512 emit_movimm(offset&0xFFFFFFFC,ra); // LWL/LWR
4514 emit_movimm(offset,ra);
4516 } // else did it in the previous cycle
4522 if (!entry || entry[ra] != dops[i].rs1)
4523 emit_loadreg(dops[i].rs1, ra);
4525 //if(!entry||entry[ra]!=dops[i].rs1)
4526 // printf("poor load scheduling!\n");
4529 if(dops[i].rs1!=dops[i].rt1||dops[i].itype!=LOAD) {
4531 if(!entry||entry[ra]!=agr) {
4532 if (dops[i].opcode==0x22||dops[i].opcode==0x26) {
4533 emit_movimm((constmap[i][rs]+offset)&0xFFFFFFFC,ra); // LWL/LWR
4535 emit_movimm(constmap[i][rs]+offset,ra);
4536 regs[i].loadedconst|=1<<ra;
4538 } // else did it in the previous cycle
4541 else // else load_consts already did it
4550 emit_addimm(rs,offset,ra);
4552 emit_addimm(ra,offset,ra);
4557 assert(cinfo[i].addr >= 0);
4559 // Preload constants for next instruction
4560 if (dops[i+1].is_load || dops[i+1].is_store) {
4563 agr=AGEN1+((i+1)&1);
4564 ra=get_reg(i_regs->regmap,agr);
4566 int rs=get_reg(regs[i+1].regmap,dops[i+1].rs1);
4567 int offset=cinfo[i+1].imm;
4568 int c=(regs[i+1].wasconst>>rs)&1;
4569 if(c&&(dops[i+1].rs1!=dops[i+1].rt1||dops[i+1].itype!=LOAD)) {
4570 if (dops[i+1].opcode==0x22||dops[i+1].opcode==0x26) {
4571 emit_movimm((constmap[i+1][rs]+offset)&0xFFFFFFFC,ra); // LWL/LWR
4572 }else if (dops[i+1].opcode==0x1a||dops[i+1].opcode==0x1b) {
4573 emit_movimm((constmap[i+1][rs]+offset)&0xFFFFFFF8,ra); // LDL/LDR
4575 emit_movimm(constmap[i+1][rs]+offset,ra);
4576 regs[i+1].loadedconst|=1<<ra;
4579 else if(dops[i+1].rs1==0) {
4580 // Using r0 as a base address
4581 if (dops[i+1].opcode==0x22||dops[i+1].opcode==0x26) {
4582 emit_movimm(offset&0xFFFFFFFC,ra); // LWL/LWR
4583 }else if (dops[i+1].opcode==0x1a||dops[i+1].opcode==0x1b) {
4584 emit_movimm(offset&0xFFFFFFF8,ra); // LDL/LDR
4586 emit_movimm(offset,ra);
4593 static int get_final_value(int hr, int i, u_int *value)
4595 int reg=regs[i].regmap[hr];
4597 if(regs[i+1].regmap[hr]!=reg) break;
4598 if(!((regs[i+1].isconst>>hr)&1)) break;
4599 if(dops[i+1].bt) break;
4603 if (dops[i].is_jump) {
4604 *value=constmap[i][hr];
4608 if (dops[i+1].is_jump) {
4609 // Load in delay slot, out-of-order execution
4610 if(dops[i+2].itype==LOAD&&dops[i+2].rs1==reg&&dops[i+2].rt1==reg&&((regs[i+1].wasconst>>hr)&1))
4612 // Precompute load address
4613 *value=constmap[i][hr]+cinfo[i+2].imm;
4617 if(dops[i+1].itype==LOAD&&dops[i+1].rs1==reg&&dops[i+1].rt1==reg)
4619 // Precompute load address
4620 *value=constmap[i][hr]+cinfo[i+1].imm;
4621 //printf("c=%x imm=%lx\n",(long)constmap[i][hr],cinfo[i+1].imm);
4626 *value=constmap[i][hr];
4627 //printf("c=%lx\n",(long)constmap[i][hr]);
4628 if(i==slen-1) return 1;
4630 return !((unneeded_reg[i+1]>>reg)&1);
4633 // Load registers with known constants
4634 static void load_consts(signed char pre[],signed char regmap[],int i)
4637 // propagate loaded constant flags
4638 if(i==0||dops[i].bt)
4639 regs[i].loadedconst=0;
4641 for (hr = 0; hr < HOST_REGS; hr++) {
4642 if (hr == EXCLUDE_REG || regmap[hr] < 0 || pre[hr] != regmap[hr])
4644 if ((((regs[i-1].isconst & regs[i-1].loadedconst) >> hr) & 1)
4645 && regmap[hr] == regs[i-1].regmap[hr])
4647 regs[i].loadedconst |= 1u << hr;
4652 for(hr=0;hr<HOST_REGS;hr++) {
4653 if(hr!=EXCLUDE_REG&®map[hr]>=0) {
4654 //if(entry[hr]!=regmap[hr]) {
4655 if(!((regs[i].loadedconst>>hr)&1)) {
4656 assert(regmap[hr]<64);
4657 if(((regs[i].isconst>>hr)&1)&®map[hr]>0) {
4658 u_int value, similar=0;
4659 if(get_final_value(hr,i,&value)) {
4660 // see if some other register has similar value
4661 for(hr2=0;hr2<HOST_REGS;hr2++) {
4662 if(hr2!=EXCLUDE_REG&&((regs[i].loadedconst>>hr2)&1)) {
4663 if(is_similar_value(value,constmap[i][hr2])) {
4671 if(get_final_value(hr2,i,&value2)) // is this needed?
4672 emit_movimm_from(value2,hr2,value,hr);
4674 emit_movimm(value,hr);
4680 emit_movimm(value,hr);
4683 regs[i].loadedconst|=1<<hr;
4690 static void load_all_consts(const signed char regmap[], u_int dirty, int i)
4694 for(hr=0;hr<HOST_REGS;hr++) {
4695 if(hr!=EXCLUDE_REG&®map[hr]>=0&&((dirty>>hr)&1)) {
4696 assert(regmap[hr] < 64);
4697 if(((regs[i].isconst>>hr)&1)&®map[hr]>0) {
4698 int value=constmap[i][hr];
4703 emit_movimm(value,hr);
4710 // Write out all dirty registers (except cycle count)
4712 static void wb_dirtys(const signed char i_regmap[], u_int i_dirty)
4715 for(hr=0;hr<HOST_REGS;hr++) {
4716 if(hr!=EXCLUDE_REG) {
4717 if(i_regmap[hr]>0) {
4718 if(i_regmap[hr]!=CCREG) {
4719 if((i_dirty>>hr)&1) {
4720 assert(i_regmap[hr]<64);
4721 emit_storereg(i_regmap[hr],hr);
4730 // Write out dirty registers that we need to reload (pair with load_needed_regs)
4731 // This writes the registers not written by store_regs_bt
4732 static void wb_needed_dirtys(const signed char i_regmap[], u_int i_dirty, int addr)
4735 int t=(addr-start)>>2;
4736 for(hr=0;hr<HOST_REGS;hr++) {
4737 if(hr!=EXCLUDE_REG) {
4738 if(i_regmap[hr]>0) {
4739 if(i_regmap[hr]!=CCREG) {
4740 if(i_regmap[hr]==regs[t].regmap_entry[hr] && ((regs[t].dirty>>hr)&1)) {
4741 if((i_dirty>>hr)&1) {
4742 assert(i_regmap[hr]<64);
4743 emit_storereg(i_regmap[hr],hr);
4752 // Load all registers (except cycle count)
4753 #ifndef load_all_regs
4754 static void load_all_regs(const signed char i_regmap[])
4757 for(hr=0;hr<HOST_REGS;hr++) {
4758 if(hr!=EXCLUDE_REG) {
4759 if(i_regmap[hr]==0) {
4763 if(i_regmap[hr]>0 && i_regmap[hr]<TEMPREG && i_regmap[hr]!=CCREG)
4765 emit_loadreg(i_regmap[hr],hr);
4772 // Load all current registers also needed by next instruction
4773 static void load_needed_regs(const signed char i_regmap[], const signed char next_regmap[])
4775 signed char regmap_sel[HOST_REGS];
4777 for (hr = 0; hr < HOST_REGS; hr++) {
4778 regmap_sel[hr] = -1;
4779 if (hr != EXCLUDE_REG)
4780 if (next_regmap[hr] == i_regmap[hr] || get_reg(next_regmap, i_regmap[hr]) >= 0)
4781 regmap_sel[hr] = i_regmap[hr];
4783 load_all_regs(regmap_sel);
4786 // Load all regs, storing cycle count if necessary
4787 static void load_regs_entry(int t)
4789 if(dops[t].is_ds) emit_addimm(HOST_CCREG,CLOCK_ADJUST(1),HOST_CCREG);
4790 else if(cinfo[t].ccadj) emit_addimm(HOST_CCREG,-cinfo[t].ccadj,HOST_CCREG);
4791 if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) {
4792 emit_storereg(CCREG,HOST_CCREG);
4794 load_all_regs(regs[t].regmap_entry);
4797 // Store dirty registers prior to branch
4798 static void store_regs_bt(signed char i_regmap[],uint64_t i_dirty,int addr)
4800 if(internal_branch(addr))
4802 int t=(addr-start)>>2;
4804 for(hr=0;hr<HOST_REGS;hr++) {
4805 if(hr!=EXCLUDE_REG) {
4806 if(i_regmap[hr]>0 && i_regmap[hr]!=CCREG) {
4807 if(i_regmap[hr]!=regs[t].regmap_entry[hr] || !((regs[t].dirty>>hr)&1)) {
4808 if((i_dirty>>hr)&1) {
4809 assert(i_regmap[hr]<64);
4810 if(!((unneeded_reg[t]>>i_regmap[hr])&1))
4811 emit_storereg(i_regmap[hr],hr);
4820 // Branch out of this block, write out all dirty regs
4821 wb_dirtys(i_regmap,i_dirty);
4825 // Load all needed registers for branch target
4826 static void load_regs_bt(signed char i_regmap[],uint64_t i_dirty,int addr)
4828 //if(addr>=start && addr<(start+slen*4))
4829 if(internal_branch(addr))
4831 int t=(addr-start)>>2;
4833 // Store the cycle count before loading something else
4834 if(i_regmap[HOST_CCREG]!=CCREG) {
4835 assert(i_regmap[HOST_CCREG]==-1);
4837 if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) {
4838 emit_storereg(CCREG,HOST_CCREG);
4841 for(hr=0;hr<HOST_REGS;hr++) {
4842 if(hr!=EXCLUDE_REG&®s[t].regmap_entry[hr]>=0&®s[t].regmap_entry[hr]<TEMPREG) {
4843 if(i_regmap[hr]!=regs[t].regmap_entry[hr]) {
4844 if(regs[t].regmap_entry[hr]==0) {
4847 else if(regs[t].regmap_entry[hr]!=CCREG)
4849 emit_loadreg(regs[t].regmap_entry[hr],hr);
4857 static int match_bt(signed char i_regmap[],uint64_t i_dirty,int addr)
4859 if(addr>=start && addr<start+slen*4-4)
4861 int t=(addr-start)>>2;
4863 if(regs[t].regmap_entry[HOST_CCREG]!=CCREG) return 0;
4864 for(hr=0;hr<HOST_REGS;hr++)
4868 if(i_regmap[hr]!=regs[t].regmap_entry[hr])
4870 if(regs[t].regmap_entry[hr]>=0&&(regs[t].regmap_entry[hr]|64)<TEMPREG+64)
4877 if(i_regmap[hr]<TEMPREG)
4879 if(!((unneeded_reg[t]>>i_regmap[hr])&1))
4882 else if(i_regmap[hr]>=64&&i_regmap[hr]<TEMPREG+64)
4888 else // Same register but is it 32-bit or dirty?
4891 if(!((regs[t].dirty>>hr)&1))
4895 if(!((unneeded_reg[t]>>i_regmap[hr])&1))
4897 //printf("%x: dirty no match\n",addr);
4905 // Delay slots are not valid branch targets
4906 //if(t>0&&(dops[t-1].is_jump) return 0;
4907 // Delay slots require additional processing, so do not match
4908 if(dops[t].is_ds) return 0;
4913 for(hr=0;hr<HOST_REGS;hr++)
4919 if(hr!=HOST_CCREG||i_regmap[hr]!=CCREG)
4934 static void drc_dbg_emit_do_cmp(int i, int ccadj_)
4936 extern void do_insn_cmp();
4938 u_int hr, reglist = get_host_reglist(regs[i].regmap);
4939 reglist |= get_host_reglist(regs[i].regmap_entry);
4940 reglist &= DRC_DBG_REGMASK;
4942 assem_debug("//do_insn_cmp %08x\n", start+i*4);
4944 // write out changed consts to match the interpreter
4945 if (i > 0 && !dops[i].bt) {
4946 for (hr = 0; hr < HOST_REGS; hr++) {
4947 int reg = regs[i].regmap_entry[hr]; // regs[i-1].regmap[hr];
4948 if (hr == EXCLUDE_REG || reg <= 0)
4950 if (!((regs[i-1].isconst >> hr) & 1))
4952 if (i > 1 && reg == regs[i-2].regmap[hr] && constmap[i-1][hr] == constmap[i-2][hr])
4954 emit_movimm(constmap[i-1][hr],0);
4955 emit_storereg(reg, 0);
4958 emit_movimm(start+i*4,0);
4959 emit_writeword(0,&pcaddr);
4960 int cc = get_reg(regs[i].regmap_entry, CCREG);
4962 emit_loadreg(CCREG, cc = 0);
4963 emit_addimm(cc, ccadj_, 0);
4964 emit_writeword(0, &psxRegs.cycle);
4965 emit_far_call(do_insn_cmp);
4966 //emit_readword(&cycle,0);
4967 //emit_addimm(0,2,0);
4968 //emit_writeword(0,&cycle);
4970 restore_regs(reglist);
4971 assem_debug("\\\\do_insn_cmp\n");
4974 #define drc_dbg_emit_do_cmp(x,y)
4977 // Used when a branch jumps into the delay slot of another branch
4978 static void ds_assemble_entry(int i)
4980 int t = (cinfo[i].ba - start) >> 2;
4981 int ccadj_ = -CLOCK_ADJUST(1);
4983 instr_addr[t] = out;
4984 assem_debug("Assemble delay slot at %x\n",cinfo[i].ba);
4985 assem_debug("<->\n");
4986 drc_dbg_emit_do_cmp(t, ccadj_);
4987 if(regs[t].regmap_entry[HOST_CCREG]==CCREG&®s[t].regmap[HOST_CCREG]!=CCREG)
4988 wb_register(CCREG,regs[t].regmap_entry,regs[t].wasdirty);
4989 load_regs(regs[t].regmap_entry,regs[t].regmap,dops[t].rs1,dops[t].rs2);
4990 address_generation(t,®s[t],regs[t].regmap_entry);
4991 if (ram_offset && (dops[t].is_load || dops[t].is_store))
4992 load_reg(regs[t].regmap_entry,regs[t].regmap,ROREG);
4993 if (dops[t].is_store)
4994 load_reg(regs[t].regmap_entry,regs[t].regmap,INVCP);
4996 switch (dops[t].itype) {
5004 SysPrintf("Jump in the delay slot. This is probably a bug.\n");
5007 assemble(t, ®s[t], ccadj_);
5009 store_regs_bt(regs[t].regmap,regs[t].dirty,cinfo[i].ba+4);
5010 load_regs_bt(regs[t].regmap,regs[t].dirty,cinfo[i].ba+4);
5011 if(internal_branch(cinfo[i].ba+4))
5012 assem_debug("branch: internal\n");
5014 assem_debug("branch: external\n");
5015 assert(internal_branch(cinfo[i].ba+4));
5016 add_to_linker(out,cinfo[i].ba+4,internal_branch(cinfo[i].ba+4));
5020 // Load 2 immediates optimizing for small code size
5021 static void emit_mov2imm_compact(int imm1,u_int rt1,int imm2,u_int rt2)
5023 emit_movimm(imm1,rt1);
5024 emit_movimm_from(imm1,rt1,imm2,rt2);
5027 static void do_cc(int i, const signed char i_regmap[], int *adj,
5028 int addr, int taken, int invert)
5030 int count, count_plus2;
5034 if(dops[i].itype==RJUMP)
5038 //if(cinfo[i].ba>=start && cinfo[i].ba<(start+slen*4))
5039 if(internal_branch(cinfo[i].ba))
5041 t=(cinfo[i].ba-start)>>2;
5042 if(dops[t].is_ds) *adj=-CLOCK_ADJUST(1); // Branch into delay slot adds an extra cycle
5043 else *adj=cinfo[t].ccadj;
5049 count = cinfo[i].ccadj;
5050 count_plus2 = count + CLOCK_ADJUST(2);
5051 if(taken==TAKEN && i==(cinfo[i].ba-start)>>2 && source[i+1]==0) {
5053 if(count&1) emit_addimm_and_set_flags(2*(count+2),HOST_CCREG);
5055 //emit_subfrommem(&idlecount,HOST_CCREG); // Count idle cycles
5056 emit_andimm(HOST_CCREG,3,HOST_CCREG);
5060 else if(*adj==0||invert) {
5061 int cycles = count_plus2;
5066 if(-NO_CYCLE_PENALTY_THR<rel&&rel<0)
5067 cycles=*adj+count+2-*adj;
5070 emit_addimm_and_set_flags(cycles, HOST_CCREG);
5076 emit_cmpimm(HOST_CCREG, -count_plus2);
5080 add_stub(CC_STUB,jaddr,idle?idle:out,(*adj==0||invert||idle)?0:count_plus2,i,addr,taken,0);
5083 static void do_ccstub(int n)
5086 assem_debug("do_ccstub %x\n",start+(u_int)stubs[n].b*4);
5087 set_jump_target(stubs[n].addr, out);
5089 if (stubs[n].d != TAKEN) {
5090 wb_dirtys(branch_regs[i].regmap,branch_regs[i].dirty);
5093 if(internal_branch(cinfo[i].ba))
5094 wb_needed_dirtys(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5098 // Save PC as return address
5099 emit_movimm(stubs[n].c,0);
5100 emit_writeword(0,&pcaddr);
5104 // Return address depends on which way the branch goes
5105 if(dops[i].itype==CJUMP||dops[i].itype==SJUMP)
5107 int s1l=get_reg(branch_regs[i].regmap,dops[i].rs1);
5108 int s2l=get_reg(branch_regs[i].regmap,dops[i].rs2);
5114 else if(dops[i].rs2==0)
5119 #ifdef DESTRUCTIVE_WRITEBACK
5121 if((branch_regs[i].dirty>>s1l)&&1)
5122 emit_loadreg(dops[i].rs1,s1l);
5125 if((branch_regs[i].dirty>>s1l)&1)
5126 emit_loadreg(dops[i].rs2,s1l);
5129 if((branch_regs[i].dirty>>s2l)&1)
5130 emit_loadreg(dops[i].rs2,s2l);
5133 int addr=-1,alt=-1,ntaddr=-1;
5136 if(hr!=EXCLUDE_REG && hr!=HOST_CCREG &&
5137 branch_regs[i].regmap[hr]!=dops[i].rs1 &&
5138 branch_regs[i].regmap[hr]!=dops[i].rs2 )
5146 if(hr!=EXCLUDE_REG && hr!=HOST_CCREG &&
5147 branch_regs[i].regmap[hr]!=dops[i].rs1 &&
5148 branch_regs[i].regmap[hr]!=dops[i].rs2 )
5154 if ((dops[i].opcode & 0x3e) == 6) // BLEZ/BGTZ needs another register
5158 if(hr!=EXCLUDE_REG && hr!=HOST_CCREG &&
5159 branch_regs[i].regmap[hr]!=dops[i].rs1 &&
5160 branch_regs[i].regmap[hr]!=dops[i].rs2 )
5166 assert(hr<HOST_REGS);
5168 if (dops[i].opcode == 4) // BEQ
5170 #ifdef HAVE_CMOV_IMM
5171 if(s2l>=0) emit_cmp(s1l,s2l);
5172 else emit_test(s1l,s1l);
5173 emit_cmov2imm_e_ne_compact(cinfo[i].ba,start+i*4+8,addr);
5175 emit_mov2imm_compact(cinfo[i].ba,addr,start+i*4+8,alt);
5176 if(s2l>=0) emit_cmp(s1l,s2l);
5177 else emit_test(s1l,s1l);
5178 emit_cmovne_reg(alt,addr);
5181 else if (dops[i].opcode == 5) // BNE
5183 #ifdef HAVE_CMOV_IMM
5184 if(s2l>=0) emit_cmp(s1l,s2l);
5185 else emit_test(s1l,s1l);
5186 emit_cmov2imm_e_ne_compact(start+i*4+8,cinfo[i].ba,addr);
5188 emit_mov2imm_compact(start+i*4+8,addr,cinfo[i].ba,alt);
5189 if(s2l>=0) emit_cmp(s1l,s2l);
5190 else emit_test(s1l,s1l);
5191 emit_cmovne_reg(alt,addr);
5194 else if (dops[i].opcode == 6) // BLEZ
5196 //emit_movimm(cinfo[i].ba,alt);
5197 //emit_movimm(start+i*4+8,addr);
5198 emit_mov2imm_compact(cinfo[i].ba,alt,start+i*4+8,addr);
5200 emit_cmovl_reg(alt,addr);
5202 else if (dops[i].opcode == 7) // BGTZ
5204 //emit_movimm(cinfo[i].ba,addr);
5205 //emit_movimm(start+i*4+8,ntaddr);
5206 emit_mov2imm_compact(cinfo[i].ba,addr,start+i*4+8,ntaddr);
5208 emit_cmovl_reg(ntaddr,addr);
5210 else if (dops[i].itype == SJUMP) // BLTZ/BGEZ
5212 //emit_movimm(cinfo[i].ba,alt);
5213 //emit_movimm(start+i*4+8,addr);
5215 emit_mov2imm_compact(cinfo[i].ba,
5216 (dops[i].opcode2 & 1) ? addr : alt, start + i*4 + 8,
5217 (dops[i].opcode2 & 1) ? alt : addr);
5219 emit_cmovs_reg(alt,addr);
5222 emit_movimm((dops[i].opcode2 & 1) ? cinfo[i].ba : start + i*4 + 8, addr);
5224 emit_writeword(addr, &pcaddr);
5227 if(dops[i].itype==RJUMP)
5229 int r=get_reg(branch_regs[i].regmap,dops[i].rs1);
5230 if (ds_writes_rjump_rs(i)) {
5231 r=get_reg(branch_regs[i].regmap,RTEMP);
5233 emit_writeword(r,&pcaddr);
5235 else {SysPrintf("Unknown branch type in do_ccstub\n");abort();}
5237 // Update cycle count
5238 assert(branch_regs[i].regmap[HOST_CCREG]==CCREG||branch_regs[i].regmap[HOST_CCREG]==-1);
5239 if(stubs[n].a) emit_addimm(HOST_CCREG,(int)stubs[n].a,HOST_CCREG);
5240 emit_far_call(cc_interrupt);
5241 if(stubs[n].a) emit_addimm(HOST_CCREG,-(int)stubs[n].a,HOST_CCREG);
5242 if(stubs[n].d==TAKEN) {
5243 if(internal_branch(cinfo[i].ba))
5244 load_needed_regs(branch_regs[i].regmap,regs[(cinfo[i].ba-start)>>2].regmap_entry);
5245 else if(dops[i].itype==RJUMP) {
5246 if(get_reg(branch_regs[i].regmap,RTEMP)>=0)
5247 emit_readword(&pcaddr,get_reg(branch_regs[i].regmap,RTEMP));
5249 emit_loadreg(dops[i].rs1,get_reg(branch_regs[i].regmap,dops[i].rs1));
5251 }else if(stubs[n].d==NOTTAKEN) {
5252 if(i<slen-2) load_needed_regs(branch_regs[i].regmap,regmap_pre[i+2]);
5253 else load_all_regs(branch_regs[i].regmap);
5255 load_all_regs(branch_regs[i].regmap);
5257 if (stubs[n].retaddr)
5258 emit_jmp(stubs[n].retaddr);
5260 do_jump_vaddr(stubs[n].e);
5263 static void add_to_linker(void *addr, u_int target, int is_internal)
5265 assert(linkcount < ARRAY_SIZE(link_addr));
5266 link_addr[linkcount].addr = addr;
5267 link_addr[linkcount].target = target;
5268 link_addr[linkcount].internal = is_internal;
5272 static void ujump_assemble_write_ra(int i)
5275 unsigned int return_address;
5276 rt=get_reg(branch_regs[i].regmap,31);
5277 //assem_debug("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
5279 return_address=start+i*4+8;
5282 if(internal_branch(return_address)&&dops[i+1].rt1!=31) {
5283 int temp=-1; // note: must be ds-safe
5287 if(temp>=0) do_miniht_insert(return_address,rt,temp);
5288 else emit_movimm(return_address,rt);
5296 if(i_regmap[temp]!=PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp);
5299 if (!((regs[i].loadedconst >> rt) & 1))
5300 emit_movimm(return_address, rt); // PC into link register
5302 emit_prefetch(hash_table_get(return_address));
5308 static void ujump_assemble(int i, const struct regstat *i_regs)
5310 if(i==(cinfo[i].ba-start)>>2) assem_debug("idle loop\n");
5311 address_generation(i+1,i_regs,regs[i].regmap_entry);
5313 int temp=get_reg(branch_regs[i].regmap,PTEMP);
5314 if(dops[i].rt1==31&&temp>=0)
5316 signed char *i_regmap=i_regs->regmap;
5317 int return_address=start+i*4+8;
5318 if(get_reg(branch_regs[i].regmap,31)>0)
5319 if(i_regmap[temp]==PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp);
5322 if (dops[i].rt1 == 31)
5323 ujump_assemble_write_ra(i); // writeback ra for DS
5324 ds_assemble(i+1,i_regs);
5325 uint64_t bc_unneeded=branch_regs[i].u;
5326 bc_unneeded|=1|(1LL<<dops[i].rt1);
5327 wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded);
5328 load_reg(regs[i].regmap,branch_regs[i].regmap,CCREG);
5330 cc=get_reg(branch_regs[i].regmap,CCREG);
5331 assert(cc==HOST_CCREG);
5332 store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5334 if(dops[i].rt1==31&&temp>=0) emit_prefetchreg(temp);
5336 do_cc(i,branch_regs[i].regmap,&adj,cinfo[i].ba,TAKEN,0);
5337 if(adj) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc);
5338 load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5339 if(internal_branch(cinfo[i].ba))
5340 assem_debug("branch: internal\n");
5342 assem_debug("branch: external\n");
5343 if (internal_branch(cinfo[i].ba) && dops[(cinfo[i].ba-start)>>2].is_ds) {
5344 ds_assemble_entry(i);
5347 add_to_linker(out,cinfo[i].ba,internal_branch(cinfo[i].ba));
5352 static void rjump_assemble_write_ra(int i)
5354 int rt,return_address;
5355 rt=get_reg_w(branch_regs[i].regmap, dops[i].rt1);
5356 //assem_debug("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
5358 return_address=start+i*4+8;
5362 if(i_regmap[temp]!=PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp);
5365 if (!((regs[i].loadedconst >> rt) & 1))
5366 emit_movimm(return_address, rt); // PC into link register
5368 emit_prefetch(hash_table_get(return_address));
5372 static void rjump_assemble(int i, const struct regstat *i_regs)
5376 rs=get_reg(branch_regs[i].regmap,dops[i].rs1);
5378 if (ds_writes_rjump_rs(i)) {
5379 // Delay slot abuse, make a copy of the branch address register
5380 temp=get_reg(branch_regs[i].regmap,RTEMP);
5382 assert(regs[i].regmap[temp]==RTEMP);
5386 address_generation(i+1,i_regs,regs[i].regmap_entry);
5390 if((temp=get_reg(branch_regs[i].regmap,PTEMP))>=0) {
5391 signed char *i_regmap=i_regs->regmap;
5392 int return_address=start+i*4+8;
5393 if(i_regmap[temp]==PTEMP) emit_movimm((uintptr_t)hash_table_get(return_address),temp);
5398 if(dops[i].rs1==31) {
5399 int rh=get_reg(regs[i].regmap,RHASH);
5400 if(rh>=0) do_preload_rhash(rh);
5403 if (dops[i].rt1 != 0)
5404 rjump_assemble_write_ra(i);
5405 ds_assemble(i+1,i_regs);
5406 uint64_t bc_unneeded=branch_regs[i].u;
5407 bc_unneeded|=1|(1LL<<dops[i].rt1);
5408 bc_unneeded&=~(1LL<<dops[i].rs1);
5409 wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded);
5410 load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i].rs1,CCREG);
5411 cc=get_reg(branch_regs[i].regmap,CCREG);
5412 assert(cc==HOST_CCREG);
5415 int rh=get_reg(branch_regs[i].regmap,RHASH);
5416 int ht=get_reg(branch_regs[i].regmap,RHTBL);
5417 if(dops[i].rs1==31) {
5418 if(regs[i].regmap[rh]!=RHASH) do_preload_rhash(rh);
5419 do_preload_rhtbl(ht);
5423 store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,-1);
5424 #ifdef DESTRUCTIVE_WRITEBACK
5425 if((branch_regs[i].dirty>>rs)&1) {
5426 if(dops[i].rs1!=dops[i+1].rt1&&dops[i].rs1!=dops[i+1].rt2) {
5427 emit_loadreg(dops[i].rs1,rs);
5432 if(dops[i].rt1==31&&temp>=0) emit_prefetchreg(temp);
5435 if(dops[i].rs1==31) {
5436 do_miniht_load(ht,rh);
5439 //do_cc(i,branch_regs[i].regmap,&adj,-1,TAKEN);
5440 //if(adj) emit_addimm(cc,2*(cinfo[i].ccadj+2-adj),cc); // ??? - Shouldn't happen
5442 emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), HOST_CCREG);
5443 add_stub(CC_STUB,out,NULL,0,i,-1,TAKEN,rs);
5444 if (dops[i+1].itype == RFE)
5445 // special case for RFE
5449 //load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,-1);
5451 if(dops[i].rs1==31) {
5452 do_miniht_jump(rs,rh,ht);
5459 #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
5460 if(dops[i].rt1!=31&&i<slen-2&&(((u_int)out)&7)) emit_mov(13,13);
5464 static void cjump_assemble(int i, const struct regstat *i_regs)
5466 const signed char *i_regmap = i_regs->regmap;
5469 match=match_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5470 assem_debug("match=%d\n",match);
5472 int unconditional=0,nop=0;
5474 int internal=internal_branch(cinfo[i].ba);
5475 if(i==(cinfo[i].ba-start)>>2) assem_debug("idle loop\n");
5476 if(!match) invert=1;
5477 #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
5478 if(i>(cinfo[i].ba-start)>>2) invert=1;
5481 invert=1; // because of near cond. branches
5485 s1l=get_reg(branch_regs[i].regmap,dops[i].rs1);
5486 s2l=get_reg(branch_regs[i].regmap,dops[i].rs2);
5489 s1l=get_reg(i_regmap,dops[i].rs1);
5490 s2l=get_reg(i_regmap,dops[i].rs2);
5492 if(dops[i].rs1==0&&dops[i].rs2==0)
5494 if(dops[i].opcode&1) nop=1;
5495 else unconditional=1;
5496 //assert(dops[i].opcode!=5);
5497 //assert(dops[i].opcode!=7);
5498 //assert(dops[i].opcode!=0x15);
5499 //assert(dops[i].opcode!=0x17);
5501 else if(dops[i].rs1==0)
5506 else if(dops[i].rs2==0)
5512 // Out of order execution (delay slot first)
5514 address_generation(i+1,i_regs,regs[i].regmap_entry);
5515 ds_assemble(i+1,i_regs);
5517 uint64_t bc_unneeded=branch_regs[i].u;
5518 bc_unneeded&=~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2));
5520 wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded);
5521 load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i].rs1,dops[i].rs2);
5522 load_reg(regs[i].regmap,branch_regs[i].regmap,CCREG);
5523 cc=get_reg(branch_regs[i].regmap,CCREG);
5524 assert(cc==HOST_CCREG);
5526 store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5527 //do_cc(i,branch_regs[i].regmap,&adj,unconditional?cinfo[i].ba:-1,unconditional);
5528 //assem_debug("cycle count (adj)\n");
5530 do_cc(i,branch_regs[i].regmap,&adj,cinfo[i].ba,TAKEN,0);
5531 if(i!=(cinfo[i].ba-start)>>2 || source[i+1]!=0) {
5532 if(adj) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc);
5533 load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5535 assem_debug("branch: internal\n");
5537 assem_debug("branch: external\n");
5538 if (internal && dops[(cinfo[i].ba-start)>>2].is_ds) {
5539 ds_assemble_entry(i);
5542 add_to_linker(out,cinfo[i].ba,internal);
5545 #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
5546 if(((u_int)out)&7) emit_addnop(0);
5551 emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), cc);
5554 add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0);
5557 void *taken = NULL, *nottaken = NULL, *nottaken1 = NULL;
5558 do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert);
5559 if(adj&&!invert) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc);
5561 //printf("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
5563 if(dops[i].opcode==4) // BEQ
5565 if(s2l>=0) emit_cmp(s1l,s2l);
5566 else emit_test(s1l,s1l);
5571 add_to_linker(out,cinfo[i].ba,internal);
5575 if(dops[i].opcode==5) // BNE
5577 if(s2l>=0) emit_cmp(s1l,s2l);
5578 else emit_test(s1l,s1l);
5583 add_to_linker(out,cinfo[i].ba,internal);
5587 if(dops[i].opcode==6) // BLEZ
5594 add_to_linker(out,cinfo[i].ba,internal);
5598 if(dops[i].opcode==7) // BGTZ
5605 add_to_linker(out,cinfo[i].ba,internal);
5610 if(taken) set_jump_target(taken, out);
5611 #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
5612 if (match && (!internal || !dops[(cinfo[i].ba-start)>>2].is_ds)) {
5614 emit_addimm(cc,-adj,cc);
5615 add_to_linker(out,cinfo[i].ba,internal);
5618 add_to_linker(out,cinfo[i].ba,internal*2);
5624 if(adj) emit_addimm(cc,-adj,cc);
5625 store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5626 load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5628 assem_debug("branch: internal\n");
5630 assem_debug("branch: external\n");
5631 if (internal && dops[(cinfo[i].ba - start) >> 2].is_ds) {
5632 ds_assemble_entry(i);
5635 add_to_linker(out,cinfo[i].ba,internal);
5639 set_jump_target(nottaken, out);
5642 if(nottaken1) set_jump_target(nottaken1, out);
5644 if(!invert) emit_addimm(cc,adj,cc);
5646 } // (!unconditional)
5650 // In-order execution (branch first)
5651 void *taken = NULL, *nottaken = NULL, *nottaken1 = NULL;
5652 if(!unconditional&&!nop) {
5653 //printf("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
5655 if((dops[i].opcode&0x2f)==4) // BEQ
5657 if(s2l>=0) emit_cmp(s1l,s2l);
5658 else emit_test(s1l,s1l);
5662 if((dops[i].opcode&0x2f)==5) // BNE
5664 if(s2l>=0) emit_cmp(s1l,s2l);
5665 else emit_test(s1l,s1l);
5669 if((dops[i].opcode&0x2f)==6) // BLEZ
5675 if((dops[i].opcode&0x2f)==7) // BGTZ
5681 } // if(!unconditional)
5683 uint64_t ds_unneeded=branch_regs[i].u;
5684 ds_unneeded&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2));
5688 if(taken) set_jump_target(taken, out);
5689 assem_debug("1:\n");
5690 wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded);
5692 load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i+1].rs1,dops[i+1].rs2);
5693 address_generation(i+1,&branch_regs[i],0);
5695 load_reg(regs[i].regmap,branch_regs[i].regmap,ROREG);
5696 load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP);
5697 ds_assemble(i+1,&branch_regs[i]);
5698 cc=get_reg(branch_regs[i].regmap,CCREG);
5700 emit_loadreg(CCREG,cc=HOST_CCREG);
5701 // CHECK: Is the following instruction (fall thru) allocated ok?
5703 assert(cc==HOST_CCREG);
5704 store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5705 do_cc(i,i_regmap,&adj,cinfo[i].ba,TAKEN,0);
5706 assem_debug("cycle count (adj)\n");
5707 if(adj) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc);
5708 load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5710 assem_debug("branch: internal\n");
5712 assem_debug("branch: external\n");
5713 if (internal && dops[(cinfo[i].ba - start) >> 2].is_ds) {
5714 ds_assemble_entry(i);
5717 add_to_linker(out,cinfo[i].ba,internal);
5722 if(!unconditional) {
5723 if(nottaken1) set_jump_target(nottaken1, out);
5724 set_jump_target(nottaken, out);
5725 assem_debug("2:\n");
5726 wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded);
5728 load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i+1].rs1,dops[i+1].rs2);
5729 address_generation(i+1,&branch_regs[i],0);
5731 load_reg(regs[i].regmap,branch_regs[i].regmap,ROREG);
5732 load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP);
5733 ds_assemble(i+1,&branch_regs[i]);
5734 cc=get_reg(branch_regs[i].regmap,CCREG);
5736 // Cycle count isn't in a register, temporarily load it then write it out
5737 emit_loadreg(CCREG,HOST_CCREG);
5738 emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), HOST_CCREG);
5741 add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0);
5742 emit_storereg(CCREG,HOST_CCREG);
5745 cc=get_reg(i_regmap,CCREG);
5746 assert(cc==HOST_CCREG);
5747 emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), cc);
5750 add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0);
5756 static void sjump_assemble(int i, const struct regstat *i_regs)
5758 const signed char *i_regmap = i_regs->regmap;
5761 match=match_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5762 assem_debug("smatch=%d ooo=%d\n", match, dops[i].ooo);
5764 int unconditional=0,nevertaken=0;
5766 int internal=internal_branch(cinfo[i].ba);
5767 if(i==(cinfo[i].ba-start)>>2) assem_debug("idle loop\n");
5768 if(!match) invert=1;
5769 #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
5770 if(i>(cinfo[i].ba-start)>>2) invert=1;
5773 invert=1; // because of near cond. branches
5776 //if(dops[i].opcode2>=0x10) return; // FIXME (BxxZAL)
5777 //assert(dops[i].opcode2<0x10||dops[i].rs1==0); // FIXME (BxxZAL)
5780 s1l=get_reg(branch_regs[i].regmap,dops[i].rs1);
5783 s1l=get_reg(i_regmap,dops[i].rs1);
5787 if(dops[i].opcode2&1) unconditional=1;
5789 // These are never taken (r0 is never less than zero)
5790 //assert(dops[i].opcode2!=0);
5791 //assert(dops[i].opcode2!=2);
5792 //assert(dops[i].opcode2!=0x10);
5793 //assert(dops[i].opcode2!=0x12);
5797 // Out of order execution (delay slot first)
5799 address_generation(i+1,i_regs,regs[i].regmap_entry);
5800 ds_assemble(i+1,i_regs);
5802 uint64_t bc_unneeded=branch_regs[i].u;
5803 bc_unneeded&=~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2));
5805 wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,bc_unneeded);
5806 load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i].rs1,dops[i].rs1);
5807 load_reg(regs[i].regmap,branch_regs[i].regmap,CCREG);
5808 if(dops[i].rt1==31) {
5809 int rt,return_address;
5810 rt=get_reg(branch_regs[i].regmap,31);
5811 //assem_debug("branch(%d): eax=%d ecx=%d edx=%d ebx=%d ebp=%d esi=%d edi=%d\n",i,branch_regs[i].regmap[0],branch_regs[i].regmap[1],branch_regs[i].regmap[2],branch_regs[i].regmap[3],branch_regs[i].regmap[5],branch_regs[i].regmap[6],branch_regs[i].regmap[7]);
5813 // Save the PC even if the branch is not taken
5814 return_address=start+i*4+8;
5815 emit_movimm(return_address,rt); // PC into link register
5817 if(!nevertaken) emit_prefetch(hash_table_get(return_address));
5821 cc=get_reg(branch_regs[i].regmap,CCREG);
5822 assert(cc==HOST_CCREG);
5824 store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5825 //do_cc(i,branch_regs[i].regmap,&adj,unconditional?cinfo[i].ba:-1,unconditional);
5826 assem_debug("cycle count (adj)\n");
5828 do_cc(i,branch_regs[i].regmap,&adj,cinfo[i].ba,TAKEN,0);
5829 if(i!=(cinfo[i].ba-start)>>2 || source[i+1]!=0) {
5830 if(adj) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc);
5831 load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5833 assem_debug("branch: internal\n");
5835 assem_debug("branch: external\n");
5836 if (internal && dops[(cinfo[i].ba - start) >> 2].is_ds) {
5837 ds_assemble_entry(i);
5840 add_to_linker(out,cinfo[i].ba,internal);
5843 #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
5844 if(((u_int)out)&7) emit_addnop(0);
5848 else if(nevertaken) {
5849 emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), cc);
5852 add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0);
5855 void *nottaken = NULL;
5856 do_cc(i,branch_regs[i].regmap,&adj,-1,0,invert);
5857 if(adj&&!invert) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc);
5860 if ((dops[i].opcode2 & 1) == 0) // BLTZ/BLTZAL
5867 add_to_linker(out,cinfo[i].ba,internal);
5878 add_to_linker(out,cinfo[i].ba,internal);
5885 #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
5886 if (match && (!internal || !dops[(cinfo[i].ba - start) >> 2].is_ds)) {
5888 emit_addimm(cc,-adj,cc);
5889 add_to_linker(out,cinfo[i].ba,internal);
5892 add_to_linker(out,cinfo[i].ba,internal*2);
5898 if(adj) emit_addimm(cc,-adj,cc);
5899 store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5900 load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5902 assem_debug("branch: internal\n");
5904 assem_debug("branch: external\n");
5905 if (internal && dops[(cinfo[i].ba - start) >> 2].is_ds) {
5906 ds_assemble_entry(i);
5909 add_to_linker(out,cinfo[i].ba,internal);
5913 set_jump_target(nottaken, out);
5917 if(!invert) emit_addimm(cc,adj,cc);
5919 } // (!unconditional)
5923 // In-order execution (branch first)
5925 void *nottaken = NULL;
5926 if (!unconditional && !nevertaken) {
5928 emit_test(s1l, s1l);
5930 if (dops[i].rt1 == 31) {
5931 int rt, return_address;
5932 rt = get_reg(branch_regs[i].regmap,31);
5934 // Save the PC even if the branch is not taken
5935 return_address = start + i*4+8;
5936 emit_movimm(return_address, rt); // PC into link register
5938 emit_prefetch(hash_table_get(return_address));
5942 if (!unconditional && !nevertaken) {
5944 if (!(dops[i].opcode2 & 1)) // BLTZ/BLTZAL
5950 uint64_t ds_unneeded=branch_regs[i].u;
5951 ds_unneeded&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2));
5955 //assem_debug("1:\n");
5956 wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded);
5958 load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i+1].rs1,dops[i+1].rs2);
5959 address_generation(i+1,&branch_regs[i],0);
5961 load_reg(regs[i].regmap,branch_regs[i].regmap,ROREG);
5962 load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP);
5963 ds_assemble(i+1,&branch_regs[i]);
5964 cc=get_reg(branch_regs[i].regmap,CCREG);
5966 emit_loadreg(CCREG,cc=HOST_CCREG);
5967 // CHECK: Is the following instruction (fall thru) allocated ok?
5969 assert(cc==HOST_CCREG);
5970 store_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5971 do_cc(i,i_regmap,&adj,cinfo[i].ba,TAKEN,0);
5972 assem_debug("cycle count (adj)\n");
5973 if(adj) emit_addimm(cc, cinfo[i].ccadj + CLOCK_ADJUST(2) - adj, cc);
5974 load_regs_bt(branch_regs[i].regmap,branch_regs[i].dirty,cinfo[i].ba);
5976 assem_debug("branch: internal\n");
5978 assem_debug("branch: external\n");
5979 if (internal && dops[(cinfo[i].ba - start) >> 2].is_ds) {
5980 ds_assemble_entry(i);
5983 add_to_linker(out,cinfo[i].ba,internal);
5988 if(!unconditional) {
5991 set_jump_target(nottaken, out);
5993 assem_debug("1:\n");
5994 wb_invalidate(regs[i].regmap,branch_regs[i].regmap,regs[i].dirty,ds_unneeded);
5995 load_regs(regs[i].regmap,branch_regs[i].regmap,dops[i+1].rs1,dops[i+1].rs2);
5996 address_generation(i+1,&branch_regs[i],0);
5998 load_reg(regs[i].regmap,branch_regs[i].regmap,ROREG);
5999 load_regs(regs[i].regmap,branch_regs[i].regmap,CCREG,INVCP);
6000 ds_assemble(i+1,&branch_regs[i]);
6001 cc=get_reg(branch_regs[i].regmap,CCREG);
6003 // Cycle count isn't in a register, temporarily load it then write it out
6004 emit_loadreg(CCREG,HOST_CCREG);
6005 emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), HOST_CCREG);
6008 add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0);
6009 emit_storereg(CCREG,HOST_CCREG);
6012 cc=get_reg(i_regmap,CCREG);
6013 assert(cc==HOST_CCREG);
6014 emit_addimm_and_set_flags(cinfo[i].ccadj + CLOCK_ADJUST(2), cc);
6017 add_stub(CC_STUB,jaddr,out,0,i,start+i*4+8,NOTTAKEN,0);
6023 static void check_regmap(signed char *regmap)
6027 for (i = 0; i < HOST_REGS; i++) {
6030 for (j = i + 1; j < HOST_REGS; j++)
6031 assert(regmap[i] != regmap[j]);
6037 #include <inttypes.h>
6038 static char insn[MAXBLOCK][10];
6040 #define set_mnemonic(i_, n_) \
6041 strcpy(insn[i_], n_)
6043 void print_regmap(const char *name, const signed char *regmap)
6047 fputs(name, stdout);
6048 for (i = 0; i < HOST_REGS; i++) {
6051 l = snprintf(buf, sizeof(buf), "$%d", regmap[i]);
6055 printf(" r%d=%s", i, buf);
6057 fputs("\n", stdout);
6061 void disassemble_inst(int i)
6063 if (dops[i].bt) printf("*"); else printf(" ");
6064 switch(dops[i].itype) {
6066 printf (" %x: %s %8x\n",start+i*4,insn[i],cinfo[i].ba);break;
6068 printf (" %x: %s r%d,r%d,%8x\n",start+i*4,insn[i],dops[i].rs1,dops[i].rs2,i?start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14):cinfo[i].ba);break;
6070 printf (" %x: %s r%d,%8x\n",start+i*4,insn[i],dops[i].rs1,start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14));break;
6072 if (dops[i].opcode2 == 9 && dops[i].rt1 != 31)
6073 printf (" %x: %s r%d,r%d\n",start+i*4,insn[i],dops[i].rt1,dops[i].rs1);
6075 printf (" %x: %s r%d\n",start+i*4,insn[i],dops[i].rs1);
6078 if(dops[i].opcode==0xf) //LUI
6079 printf (" %x: %s r%d,%4x0000\n",start+i*4,insn[i],dops[i].rt1,cinfo[i].imm&0xffff);
6081 printf (" %x: %s r%d,r%d,%d\n",start+i*4,insn[i],dops[i].rt1,dops[i].rs1,cinfo[i].imm);
6085 printf (" %x: %s r%d,r%d+%x\n",start+i*4,insn[i],dops[i].rt1,dops[i].rs1,cinfo[i].imm);
6089 printf (" %x: %s r%d,r%d+%x\n",start+i*4,insn[i],dops[i].rs2,dops[i].rs1,cinfo[i].imm);
6093 printf (" %x: %s r%d,r%d,r%d\n",start+i*4,insn[i],dops[i].rt1,dops[i].rs1,dops[i].rs2);
6096 printf (" %x: %s r%d,r%d\n",start+i*4,insn[i],dops[i].rs1,dops[i].rs2);
6099 printf (" %x: %s r%d,r%d,%d\n",start+i*4,insn[i],dops[i].rt1,dops[i].rs1,cinfo[i].imm);
6102 if((dops[i].opcode2&0x1d)==0x10)
6103 printf (" %x: %s r%d\n",start+i*4,insn[i],dops[i].rt1);
6104 else if((dops[i].opcode2&0x1d)==0x11)
6105 printf (" %x: %s r%d\n",start+i*4,insn[i],dops[i].rs1);
6107 printf (" %x: %s\n",start+i*4,insn[i]);
6110 if(dops[i].opcode2==0)
6111 printf (" %x: %s r%d,cpr0[%d]\n",start+i*4,insn[i],dops[i].rt1,(source[i]>>11)&0x1f); // MFC0
6112 else if(dops[i].opcode2==4)
6113 printf (" %x: %s r%d,cpr0[%d]\n",start+i*4,insn[i],dops[i].rs1,(source[i]>>11)&0x1f); // MTC0
6114 else printf (" %x: %s\n",start+i*4,insn[i]);
6117 if(dops[i].opcode2<3)
6118 printf (" %x: %s r%d,cpr2[%d]\n",start+i*4,insn[i],dops[i].rt1,(source[i]>>11)&0x1f); // MFC2
6119 else if(dops[i].opcode2>3)
6120 printf (" %x: %s r%d,cpr2[%d]\n",start+i*4,insn[i],dops[i].rs1,(source[i]>>11)&0x1f); // MTC2
6121 else printf (" %x: %s\n",start+i*4,insn[i]);
6124 printf (" %x: %s cpr2[%d],r%d+%x\n",start+i*4,insn[i],(source[i]>>16)&0x1f,dops[i].rs1,cinfo[i].imm);
6127 printf (" %x: %s (INTCALL)\n",start+i*4,insn[i]);
6130 //printf (" %s %8x\n",insn[i],source[i]);
6131 printf (" %x: %s\n",start+i*4,insn[i]);
6133 #ifndef REGMAP_PRINT
6136 printf("D: %x WD: %x U: %"PRIx64" hC: %x hWC: %x hLC: %x\n",
6137 regs[i].dirty, regs[i].wasdirty, unneeded_reg[i],
6138 regs[i].isconst, regs[i].wasconst, regs[i].loadedconst);
6139 print_regmap("pre: ", regmap_pre[i]);
6140 print_regmap("entry: ", regs[i].regmap_entry);
6141 print_regmap("map: ", regs[i].regmap);
6142 if (dops[i].is_jump) {
6143 print_regmap("bentry:", branch_regs[i].regmap_entry);
6144 print_regmap("bmap: ", branch_regs[i].regmap);
6148 #define set_mnemonic(i_, n_)
6149 static void disassemble_inst(int i) {}
6152 #define DRC_TEST_VAL 0x74657374
6154 static noinline void new_dynarec_test(void)
6156 int (*testfunc)(void);
6161 // check structure linkage
6162 if ((u_char *)rcnts - (u_char *)&psxRegs != sizeof(psxRegs))
6164 SysPrintf("linkage_arm* miscompilation/breakage detected.\n");
6167 SysPrintf("(%p) testing if we can run recompiled code @%p...\n",
6168 new_dynarec_test, out);
6169 ((volatile u_int *)NDRC_WRITE_OFFSET(out))[0]++; // make the cache dirty
6171 for (i = 0; i < ARRAY_SIZE(ret); i++) {
6172 out = ndrc->translation_cache;
6173 beginning = start_block();
6174 emit_movimm(DRC_TEST_VAL + i, 0); // test
6177 end_block(beginning);
6178 testfunc = beginning;
6179 ret[i] = testfunc();
6182 if (ret[0] == DRC_TEST_VAL && ret[1] == DRC_TEST_VAL + 1)
6183 SysPrintf("test passed.\n");
6185 SysPrintf("test failed, will likely crash soon (r=%08x %08x)\n", ret[0], ret[1]);
6186 out = ndrc->translation_cache;
6189 // clear the state completely, instead of just marking
6190 // things invalid like invalidate_all_pages() does
6191 void new_dynarec_clear_full(void)
6194 out = ndrc->translation_cache;
6195 memset(invalid_code,1,sizeof(invalid_code));
6196 memset(hash_table,0xff,sizeof(hash_table));
6197 memset(mini_ht,-1,sizeof(mini_ht));
6198 memset(shadow,0,sizeof(shadow));
6200 expirep = EXPIRITY_OFFSET;
6201 pending_exception=0;
6204 inv_code_start=inv_code_end=~0;
6207 for (n = 0; n < ARRAY_SIZE(blocks); n++)
6208 blocks_clear(&blocks[n]);
6209 for (n = 0; n < ARRAY_SIZE(jumps); n++) {
6213 stat_clear(stat_blocks);
6214 stat_clear(stat_links);
6216 cycle_multiplier_old = Config.cycle_multiplier;
6217 new_dynarec_hacks_old = new_dynarec_hacks;
6220 void new_dynarec_init(void)
6222 SysPrintf("Init new dynarec, ndrc size %x\n", (int)sizeof(*ndrc));
6227 #ifdef BASE_ADDR_DYNAMIC
6229 sceBlock = getVMBlock(); //sceKernelAllocMemBlockForVM("code", sizeof(*ndrc));
6231 SysPrintf("sceKernelAllocMemBlockForVM failed: %x\n", sceBlock);
6232 int ret = sceKernelGetMemBlockBase(sceBlock, (void **)&ndrc);
6234 SysPrintf("sceKernelGetMemBlockBase failed: %x\n", ret);
6235 sceKernelOpenVMDomain();
6236 sceClibPrintf("translation_cache = 0x%08lx\n ", (long)ndrc->translation_cache);
6237 #elif defined(_MSC_VER)
6238 ndrc = VirtualAlloc(NULL, sizeof(*ndrc), MEM_COMMIT | MEM_RESERVE,
6239 PAGE_EXECUTE_READWRITE);
6240 #elif defined(HAVE_LIBNX)
6241 Result rc = jitCreate(&g_jit, sizeof(*ndrc));
6243 SysPrintf("jitCreate failed: %08x\n", rc);
6244 SysPrintf("jitCreate: RX: %p RW: %p type: %d\n", g_jit.rx_addr, g_jit.rw_addr, g_jit.type);
6245 jitTransitionToWritable(&g_jit);
6246 ndrc = g_jit.rx_addr;
6247 ndrc_write_ofs = (char *)g_jit.rw_addr - (char *)ndrc;
6248 memset(NDRC_WRITE_OFFSET(&ndrc->tramp), 0, sizeof(ndrc->tramp));
6250 uintptr_t desired_addr = 0;
6251 int prot = PROT_READ | PROT_WRITE | PROT_EXEC;
6252 int flags = MAP_PRIVATE | MAP_ANONYMOUS;
6256 desired_addr = ((uintptr_t)&_end + 0xffffff) & ~0xffffffl;
6258 #ifdef TC_WRITE_OFFSET
6259 // mostly for testing
6260 fd = open("/dev/shm/pcsxr", O_CREAT | O_RDWR, 0600);
6261 ftruncate(fd, sizeof(*ndrc));
6262 void *mw = mmap(NULL, sizeof(*ndrc), PROT_READ | PROT_WRITE,
6263 (flags = MAP_SHARED), fd, 0);
6264 assert(mw != MAP_FAILED);
6265 prot = PROT_READ | PROT_EXEC;
6267 ndrc = mmap((void *)desired_addr, sizeof(*ndrc), prot, flags, fd, 0);
6268 if (ndrc == MAP_FAILED) {
6269 SysPrintf("mmap() failed: %s\n", strerror(errno));
6272 #ifdef TC_WRITE_OFFSET
6273 ndrc_write_ofs = (char *)mw - (char *)ndrc;
6277 #ifndef NO_WRITE_EXEC
6278 // not all systems allow execute in data segment by default
6279 // size must be 4K aligned for 3DS?
6280 if (mprotect(ndrc, sizeof(*ndrc),
6281 PROT_READ | PROT_WRITE | PROT_EXEC) != 0)
6282 SysPrintf("mprotect() failed: %s\n", strerror(errno));
6285 out = ndrc->translation_cache;
6286 new_dynarec_clear_full();
6288 // Copy this into local area so we don't have to put it in every literal pool
6289 invc_ptr=invalid_code;
6293 ram_offset = (uintptr_t)psxM - 0x80000000;
6295 SysPrintf("warning: RAM is not directly mapped, performance will suffer\n");
6296 SysPrintf("Mapped (RAM/scrp/ROM/LUTs/TC):\n");
6297 SysPrintf("%p/%p/%p/%p/%p\n", psxM, psxH, psxR, mem_rtab, out);
6300 void new_dynarec_cleanup(void)
6303 #ifdef BASE_ADDR_DYNAMIC
6305 // sceBlock is managed by retroarch's bootstrap code
6306 //sceKernelFreeMemBlock(sceBlock);
6308 #elif defined(HAVE_LIBNX)
6312 if (munmap(ndrc, sizeof(*ndrc)) < 0)
6313 SysPrintf("munmap() failed\n");
6317 for (n = 0; n < ARRAY_SIZE(blocks); n++)
6318 blocks_clear(&blocks[n]);
6319 for (n = 0; n < ARRAY_SIZE(jumps); n++) {
6323 stat_clear(stat_blocks);
6324 stat_clear(stat_links);
6325 new_dynarec_print_stats();
6328 static u_int *get_source_start(u_int addr, u_int *limit)
6330 if (addr < 0x00800000
6331 || (0x80000000 <= addr && addr < 0x80800000)
6332 || (0xa0000000 <= addr && addr < 0xa0800000))
6334 // used for BIOS calls mostly?
6335 *limit = (addr & 0xa0600000) + 0x00200000;
6336 return (u_int *)(psxM + (addr & 0x1fffff));
6338 else if (!Config.HLE && (
6339 /* (0x9fc00000 <= addr && addr < 0x9fc80000) ||*/
6340 (0xbfc00000 <= addr && addr < 0xbfc80000)))
6342 // BIOS. The multiplier should be much higher as it's uncached 8bit mem,
6343 // but timings in PCSX are too tied to the interpreter's 2-per-insn assumption
6344 if (!HACK_ENABLED(NDHACK_OVERRIDE_CYCLE_M))
6345 cycle_multiplier_active = 200;
6347 *limit = (addr & 0xfff00000) | 0x80000;
6348 return (u_int *)((u_char *)psxR + (addr&0x7ffff));
6353 static u_int scan_for_ret(u_int addr)
6358 mem = get_source_start(addr, &limit);
6362 if (limit > addr + 0x1000)
6363 limit = addr + 0x1000;
6364 for (; addr < limit; addr += 4, mem++) {
6365 if (*mem == 0x03e00008) // jr $ra
6371 struct savestate_block {
6376 static int addr_cmp(const void *p1_, const void *p2_)
6378 const struct savestate_block *p1 = p1_, *p2 = p2_;
6379 return p1->addr - p2->addr;
6382 int new_dynarec_save_blocks(void *save, int size)
6384 struct savestate_block *sblocks = save;
6385 int maxcount = size / sizeof(sblocks[0]);
6386 struct savestate_block tmp_blocks[1024];
6387 struct block_info *block;
6388 int p, s, d, o, bcnt;
6392 for (p = 0; p < ARRAY_SIZE(blocks); p++) {
6394 for (block = blocks[p]; block != NULL; block = block->next) {
6395 if (block->is_dirty)
6397 tmp_blocks[bcnt].addr = block->start;
6398 tmp_blocks[bcnt].regflags = block->reg_sv_flags;
6403 qsort(tmp_blocks, bcnt, sizeof(tmp_blocks[0]), addr_cmp);
6405 addr = tmp_blocks[0].addr;
6406 for (s = d = 0; s < bcnt; s++) {
6407 if (tmp_blocks[s].addr < addr)
6409 if (d == 0 || tmp_blocks[d-1].addr != tmp_blocks[s].addr)
6410 tmp_blocks[d++] = tmp_blocks[s];
6411 addr = scan_for_ret(tmp_blocks[s].addr);
6414 if (o + d > maxcount)
6416 memcpy(&sblocks[o], tmp_blocks, d * sizeof(sblocks[0]));
6420 return o * sizeof(sblocks[0]);
6423 void new_dynarec_load_blocks(const void *save, int size)
6425 const struct savestate_block *sblocks = save;
6426 int count = size / sizeof(sblocks[0]);
6427 struct block_info *block;
6428 u_int regs_save[32];
6433 // restore clean blocks, if any
6434 for (page = 0, b = i = 0; page < ARRAY_SIZE(blocks); page++) {
6435 for (block = blocks[page]; block != NULL; block = block->next, b++) {
6436 if (!block->is_dirty)
6438 assert(block->source && block->copy);
6439 if (memcmp(block->source, block->copy, block->len))
6442 // see try_restore_block
6443 block->is_dirty = 0;
6444 mark_invalid_code(block->start, block->len, 0);
6448 inv_debug("load_blocks: %d/%d clean blocks\n", i, b);
6450 // change GPRs for speculation to at least partially work..
6451 memcpy(regs_save, &psxRegs.GPR, sizeof(regs_save));
6452 for (i = 1; i < 32; i++)
6453 psxRegs.GPR.r[i] = 0x80000000;
6455 for (b = 0; b < count; b++) {
6456 for (f = sblocks[b].regflags, i = 0; f; f >>= 1, i++) {
6458 psxRegs.GPR.r[i] = 0x1f800000;
6461 ndrc_get_addr_ht(sblocks[b].addr);
6463 for (f = sblocks[b].regflags, i = 0; f; f >>= 1, i++) {
6465 psxRegs.GPR.r[i] = 0x80000000;
6469 memcpy(&psxRegs.GPR, regs_save, sizeof(regs_save));
6472 void new_dynarec_print_stats(void)
6475 printf("cc %3d,%3d,%3d lu%6d,%3d,%3d c%3d inv%3d,%3d tc_offs %zu b %u,%u\n",
6476 stat_bc_pre, stat_bc_direct, stat_bc_restore,
6477 stat_ht_lookups, stat_jump_in_lookups, stat_restore_tries,
6478 stat_restore_compares, stat_inv_addr_calls, stat_inv_hits,
6479 out - ndrc->translation_cache, stat_blocks, stat_links);
6480 stat_bc_direct = stat_bc_pre = stat_bc_restore =
6481 stat_ht_lookups = stat_jump_in_lookups = stat_restore_tries =
6482 stat_restore_compares = stat_inv_addr_calls = stat_inv_hits = 0;
6486 static int apply_hacks(void)
6489 if (HACK_ENABLED(NDHACK_NO_COMPAT_HACKS))
6491 /* special hack(s) */
6492 for (i = 0; i < slen - 4; i++)
6494 // lui a4, 0xf200; jal <rcnt_read>; addu a0, 2; slti v0, 28224
6495 if (source[i] == 0x3c04f200 && dops[i+1].itype == UJUMP
6496 && source[i+2] == 0x34840002 && dops[i+3].opcode == 0x0a
6497 && cinfo[i+3].imm == 0x6e40 && dops[i+3].rs1 == 2)
6499 SysPrintf("PE2 hack @%08x\n", start + (i+3)*4);
6500 dops[i + 3].itype = NOP;
6504 if (i > 10 && source[i-1] == 0 && source[i-2] == 0x03e00008
6505 && source[i-4] == 0x8fbf0018 && source[i-6] == 0x00c0f809
6506 && dops[i-7].itype == STORE)
6509 if (dops[i].itype == IMM16)
6511 // swl r2, 15(r6); swr r2, 12(r6); sw r6, *; jalr r6
6512 if (dops[i].itype == STORELR && dops[i].rs1 == 6
6513 && dops[i-1].itype == STORELR && dops[i-1].rs1 == 6)
6515 SysPrintf("F1 hack from %08x, old dst %08x\n", start, hack_addr);
6523 static int is_ld_use_hazard(int ld_rt, const struct decoded_insn *op)
6525 return ld_rt != 0 && (ld_rt == op->rs1 || ld_rt == op->rs2)
6526 && op->itype != LOADLR && op->itype != CJUMP && op->itype != SJUMP;
6529 static void force_intcall(int i)
6531 memset(&dops[i], 0, sizeof(dops[i]));
6532 dops[i].itype = INTCALL;
6533 dops[i].rs1 = CCREG;
6534 dops[i].is_exception = 1;
6538 static void disassemble_one(int i, u_int src)
6540 unsigned int type, op, op2, op3;
6541 enum ls_width_type ls_type = LS_32;
6542 memset(&dops[i], 0, sizeof(dops[i]));
6543 memset(&cinfo[i], 0, sizeof(cinfo[i]));
6546 dops[i].opcode = op = src >> 26;
6549 set_mnemonic(i, "???");
6552 case 0x00: set_mnemonic(i, "special");
6556 case 0x00: set_mnemonic(i, "SLL"); type=SHIFTIMM; break;
6557 case 0x02: set_mnemonic(i, "SRL"); type=SHIFTIMM; break;
6558 case 0x03: set_mnemonic(i, "SRA"); type=SHIFTIMM; break;
6559 case 0x04: set_mnemonic(i, "SLLV"); type=SHIFT; break;
6560 case 0x06: set_mnemonic(i, "SRLV"); type=SHIFT; break;
6561 case 0x07: set_mnemonic(i, "SRAV"); type=SHIFT; break;
6562 case 0x08: set_mnemonic(i, "JR"); type=RJUMP; break;
6563 case 0x09: set_mnemonic(i, "JALR"); type=RJUMP; break;
6564 case 0x0C: set_mnemonic(i, "SYSCALL"); type=SYSCALL; break;
6565 case 0x0D: set_mnemonic(i, "BREAK"); type=SYSCALL; break;
6566 case 0x10: set_mnemonic(i, "MFHI"); type=MOV; break;
6567 case 0x11: set_mnemonic(i, "MTHI"); type=MOV; break;
6568 case 0x12: set_mnemonic(i, "MFLO"); type=MOV; break;
6569 case 0x13: set_mnemonic(i, "MTLO"); type=MOV; break;
6570 case 0x18: set_mnemonic(i, "MULT"); type=MULTDIV; break;
6571 case 0x19: set_mnemonic(i, "MULTU"); type=MULTDIV; break;
6572 case 0x1A: set_mnemonic(i, "DIV"); type=MULTDIV; break;
6573 case 0x1B: set_mnemonic(i, "DIVU"); type=MULTDIV; break;
6574 case 0x20: set_mnemonic(i, "ADD"); type=ALU; break;
6575 case 0x21: set_mnemonic(i, "ADDU"); type=ALU; break;
6576 case 0x22: set_mnemonic(i, "SUB"); type=ALU; break;
6577 case 0x23: set_mnemonic(i, "SUBU"); type=ALU; break;
6578 case 0x24: set_mnemonic(i, "AND"); type=ALU; break;
6579 case 0x25: set_mnemonic(i, "OR"); type=ALU; break;
6580 case 0x26: set_mnemonic(i, "XOR"); type=ALU; break;
6581 case 0x27: set_mnemonic(i, "NOR"); type=ALU; break;
6582 case 0x2A: set_mnemonic(i, "SLT"); type=ALU; break;
6583 case 0x2B: set_mnemonic(i, "SLTU"); type=ALU; break;
6586 case 0x01: set_mnemonic(i, "regimm");
6588 op2 = (src >> 16) & 0x1f;
6591 case 0x10: set_mnemonic(i, "BLTZAL"); break;
6592 case 0x11: set_mnemonic(i, "BGEZAL"); break;
6595 set_mnemonic(i, "BGEZ");
6597 set_mnemonic(i, "BLTZ");
6600 case 0x02: set_mnemonic(i, "J"); type=UJUMP; break;
6601 case 0x03: set_mnemonic(i, "JAL"); type=UJUMP; break;
6602 case 0x04: set_mnemonic(i, "BEQ"); type=CJUMP; break;
6603 case 0x05: set_mnemonic(i, "BNE"); type=CJUMP; break;
6604 case 0x06: set_mnemonic(i, "BLEZ"); type=CJUMP; break;
6605 case 0x07: set_mnemonic(i, "BGTZ"); type=CJUMP; break;
6606 case 0x08: set_mnemonic(i, "ADDI"); type=IMM16; break;
6607 case 0x09: set_mnemonic(i, "ADDIU"); type=IMM16; break;
6608 case 0x0A: set_mnemonic(i, "SLTI"); type=IMM16; break;
6609 case 0x0B: set_mnemonic(i, "SLTIU"); type=IMM16; break;
6610 case 0x0C: set_mnemonic(i, "ANDI"); type=IMM16; break;
6611 case 0x0D: set_mnemonic(i, "ORI"); type=IMM16; break;
6612 case 0x0E: set_mnemonic(i, "XORI"); type=IMM16; break;
6613 case 0x0F: set_mnemonic(i, "LUI"); type=IMM16; break;
6614 case 0x10: set_mnemonic(i, "COP0");
6615 op2 = (src >> 21) & 0x1f;
6620 case 0x01: case 0x02: case 0x06: case 0x08: type = INTCALL; break;
6621 case 0x10: set_mnemonic(i, "RFE"); type=RFE; break;
6622 default: type = OTHER; break;
6630 set_mnemonic(i, "MFC0");
6631 rd = (src >> 11) & 0x1F;
6632 if (!(0x00000417u & (1u << rd)))
6635 case 0x04: set_mnemonic(i, "MTC0"); type=COP0; break;
6637 case 0x06: type = INTCALL; break;
6638 default: type = OTHER; break;
6641 case 0x11: set_mnemonic(i, "COP1");
6642 op2 = (src >> 21) & 0x1f;
6644 case 0x12: set_mnemonic(i, "COP2");
6645 op2 = (src >> 21) & 0x1f;
6648 if (gte_handlers[src & 0x3f] != NULL) {
6650 if (gte_regnames[src & 0x3f] != NULL)
6651 strcpy(insn[i], gte_regnames[src & 0x3f]);
6653 snprintf(insn[i], sizeof(insn[i]), "COP2 %x", src & 0x3f);
6660 case 0x00: set_mnemonic(i, "MFC2"); type=COP2; break;
6661 case 0x02: set_mnemonic(i, "CFC2"); type=COP2; break;
6662 case 0x04: set_mnemonic(i, "MTC2"); type=COP2; break;
6663 case 0x06: set_mnemonic(i, "CTC2"); type=COP2; break;
6666 case 0x13: set_mnemonic(i, "COP3");
6667 op2 = (src >> 21) & 0x1f;
6669 case 0x20: set_mnemonic(i, "LB"); type=LOAD; ls_type = LS_8; break;
6670 case 0x21: set_mnemonic(i, "LH"); type=LOAD; ls_type = LS_16; break;
6671 case 0x22: set_mnemonic(i, "LWL"); type=LOADLR; ls_type = LS_LR; break;
6672 case 0x23: set_mnemonic(i, "LW"); type=LOAD; ls_type = LS_32; break;
6673 case 0x24: set_mnemonic(i, "LBU"); type=LOAD; ls_type = LS_8; break;
6674 case 0x25: set_mnemonic(i, "LHU"); type=LOAD; ls_type = LS_16; break;
6675 case 0x26: set_mnemonic(i, "LWR"); type=LOADLR; ls_type = LS_LR; break;
6676 case 0x28: set_mnemonic(i, "SB"); type=STORE; ls_type = LS_8; break;
6677 case 0x29: set_mnemonic(i, "SH"); type=STORE; ls_type = LS_16; break;
6678 case 0x2A: set_mnemonic(i, "SWL"); type=STORELR; ls_type = LS_LR; break;
6679 case 0x2B: set_mnemonic(i, "SW"); type=STORE; ls_type = LS_32; break;
6680 case 0x2E: set_mnemonic(i, "SWR"); type=STORELR; ls_type = LS_LR; break;
6681 case 0x32: set_mnemonic(i, "LWC2"); type=C2LS; ls_type = LS_32; break;
6682 case 0x3A: set_mnemonic(i, "SWC2"); type=C2LS; ls_type = LS_32; break;
6684 if (Config.HLE && (src & 0x03ffffff) < ARRAY_SIZE(psxHLEt)) {
6685 set_mnemonic(i, "HLECALL");
6692 if (type == INTCALL)
6693 SysPrintf("NI %08x @%08x (%08x)\n", src, start + i*4, start);
6694 dops[i].itype = type;
6695 dops[i].opcode2 = op2;
6696 dops[i].ls_type = ls_type;
6697 /* Get registers/immediates */
6699 gte_rs[i]=gte_rt[i]=0;
6706 dops[i].rs1 = (src >> 21) & 0x1f;
6707 dops[i].rt1 = (src >> 16) & 0x1f;
6708 cinfo[i].imm = (short)src;
6712 dops[i].rs1 = (src >> 21) & 0x1f;
6713 dops[i].rs2 = (src >> 16) & 0x1f;
6714 cinfo[i].imm = (short)src;
6717 // LWL/LWR only load part of the register,
6718 // therefore the target register must be treated as a source too
6719 dops[i].rs1 = (src >> 21) & 0x1f;
6720 dops[i].rs2 = (src >> 16) & 0x1f;
6721 dops[i].rt1 = (src >> 16) & 0x1f;
6722 cinfo[i].imm = (short)src;
6725 if (op==0x0f) dops[i].rs1=0; // LUI instruction has no source register
6726 else dops[i].rs1 = (src >> 21) & 0x1f;
6728 dops[i].rt1 = (src >> 16) & 0x1f;
6729 if(op>=0x0c&&op<=0x0e) { // ANDI/ORI/XORI
6730 cinfo[i].imm = (unsigned short)src;
6732 cinfo[i].imm = (short)src;
6736 // The JAL instruction writes to r31.
6743 dops[i].rs1 = (src >> 21) & 0x1f;
6744 // The JALR instruction writes to rd.
6746 dops[i].rt1 = (src >> 11) & 0x1f;
6751 dops[i].rs1 = (src >> 21) & 0x1f;
6752 dops[i].rs2 = (src >> 16) & 0x1f;
6753 if(op&2) { // BGTZ/BLEZ
6758 dops[i].rs1 = (src >> 21) & 0x1f;
6759 dops[i].rs2 = CCREG;
6760 if (op2 == 0x10 || op2 == 0x11) { // BxxAL
6762 // NOTE: If the branch is not taken, r31 is still overwritten
6766 dops[i].rs1=(src>>21)&0x1f; // source
6767 dops[i].rs2=(src>>16)&0x1f; // subtract amount
6768 dops[i].rt1=(src>>11)&0x1f; // destination
6771 dops[i].rs1=(src>>21)&0x1f; // source
6772 dops[i].rs2=(src>>16)&0x1f; // divisor
6777 if(op2==0x10) dops[i].rs1=HIREG; // MFHI
6778 if(op2==0x11) dops[i].rt1=HIREG; // MTHI
6779 if(op2==0x12) dops[i].rs1=LOREG; // MFLO
6780 if(op2==0x13) dops[i].rt1=LOREG; // MTLO
6781 if((op2&0x1d)==0x10) dops[i].rt1=(src>>11)&0x1f; // MFxx
6782 if((op2&0x1d)==0x11) dops[i].rs1=(src>>21)&0x1f; // MTxx
6785 dops[i].rs1=(src>>16)&0x1f; // target of shift
6786 dops[i].rs2=(src>>21)&0x1f; // shift amount
6787 dops[i].rt1=(src>>11)&0x1f; // destination
6790 dops[i].rs1=(src>>16)&0x1f;
6792 dops[i].rt1=(src>>11)&0x1f;
6793 cinfo[i].imm=(src>>6)&0x1f;
6796 if(op2==0) dops[i].rt1=(src>>16)&0x1F; // MFC0
6797 if(op2==4) dops[i].rs1=(src>>16)&0x1F; // MTC0
6798 if(op2==4&&((src>>11)&0x1e)==12) dops[i].rs2=CCREG;
6801 if(op2<3) dops[i].rt1=(src>>16)&0x1F; // MFC2/CFC2
6802 if(op2>3) dops[i].rs1=(src>>16)&0x1F; // MTC2/CTC2
6803 int gr=(src>>11)&0x1F;
6806 case 0x00: gte_rs[i]=1ll<<gr; break; // MFC2
6807 case 0x04: gte_rt[i]=1ll<<gr; break; // MTC2
6808 case 0x02: gte_rs[i]=1ll<<(gr+32); break; // CFC2
6809 case 0x06: gte_rt[i]=1ll<<(gr+32); break; // CTC2
6813 dops[i].rs1=(src>>21)&0x1F;
6814 cinfo[i].imm=(short)src;
6815 if(op==0x32) gte_rt[i]=1ll<<((src>>16)&0x1F); // LWC2
6816 else gte_rs[i]=1ll<<((src>>16)&0x1F); // SWC2
6819 gte_rs[i]=gte_reg_reads[src&0x3f];
6820 gte_rt[i]=gte_reg_writes[src&0x3f];
6821 gte_rt[i]|=1ll<<63; // every op changes flags
6822 if((src&0x3f)==GTE_MVMVA) {
6823 int v = (src >> 15) & 3;
6824 gte_rs[i]&=~0xe3fll;
6825 if(v==3) gte_rs[i]|=0xe00ll;
6826 else gte_rs[i]|=3ll<<(v*2);
6839 static noinline void pass1_disassemble(u_int pagelimit)
6841 int i, j, done = 0, ni_count = 0;
6844 for (i = 0; !done; i++)
6846 int force_j_to_interpreter = 0;
6847 unsigned int type, op, op2;
6849 disassemble_one(i, source[i]);
6850 dops[i].is_ds = ds_next; ds_next = 0;
6851 type = dops[i].itype;
6852 op = dops[i].opcode;
6853 op2 = dops[i].opcode2;
6855 /* Calculate branch target addresses */
6857 cinfo[i].ba=((start+i*4+4)&0xF0000000)|(((unsigned int)source[i]<<6)>>4);
6858 else if(type==CJUMP&&dops[i].rs1==dops[i].rs2&&(op&1))
6859 cinfo[i].ba=start+i*4+8; // Ignore never taken branch
6860 else if(type==SJUMP&&dops[i].rs1==0&&!(op2&1))
6861 cinfo[i].ba=start+i*4+8; // Ignore never taken branch
6862 else if(type==CJUMP||type==SJUMP)
6863 cinfo[i].ba=start+i*4+4+((signed int)((unsigned int)source[i]<<16)>>14);
6865 /* simplify always (not)taken branches */
6866 if (type == CJUMP && dops[i].rs1 == dops[i].rs2) {
6867 dops[i].rs1 = dops[i].rs2 = 0;
6869 dops[i].itype = type = UJUMP;
6870 dops[i].rs2 = CCREG;
6873 else if (type == SJUMP && dops[i].rs1 == 0 && (op2 & 1))
6874 dops[i].itype = type = UJUMP;
6876 dops[i].is_jump = type == RJUMP || type == UJUMP || type == CJUMP || type == SJUMP;
6877 dops[i].is_ujump = type == RJUMP || type == UJUMP;
6878 dops[i].is_load = type == LOAD || type == LOADLR || op == 0x32; // LWC2
6879 dops[i].is_delay_load = (dops[i].is_load || (source[i] & 0xf3d00000) == 0x40000000); // MFC/CFC
6880 dops[i].is_store = type == STORE || type == STORELR || op == 0x3a; // SWC2
6881 dops[i].is_exception = type == SYSCALL || type == HLECALL || type == INTCALL;
6882 dops[i].may_except = dops[i].is_exception || (type == ALU && (op2 == 0x20 || op2 == 0x22)) || op == 8;
6883 ds_next = dops[i].is_jump;
6885 if (((op & 0x37) == 0x21 || op == 0x25) // LH/SH/LHU
6886 && ((cinfo[i].imm & 1) || Config.PreciseExceptions))
6887 dops[i].may_except = 1;
6888 if (((op & 0x37) == 0x23 || (op & 0x37) == 0x32) // LW/SW/LWC2/SWC2
6889 && ((cinfo[i].imm & 3) || Config.PreciseExceptions))
6890 dops[i].may_except = 1;
6892 /* rare messy cases to just pass over to the interpreter */
6893 if (i > 0 && dops[i-1].is_jump) {
6895 // branch in delay slot?
6896 if (dops[i].is_jump) {
6897 // don't handle first branch and call interpreter if it's hit
6898 SysPrintf("branch in DS @%08x (%08x)\n", start + i*4, start);
6899 force_j_to_interpreter = 1;
6901 // load delay detection through a branch
6902 else if (dops[i].is_delay_load && dops[i].rt1 != 0) {
6903 const struct decoded_insn *dop = NULL;
6905 if (cinfo[i-1].ba != -1) {
6906 t = (cinfo[i-1].ba - start) / 4;
6907 if (t < 0 || t > i) {
6909 u_int *mem = get_source_start(cinfo[i-1].ba, &limit);
6911 disassemble_one(MAXBLOCK - 1, mem[0]);
6912 dop = &dops[MAXBLOCK - 1];
6918 if ((dop && is_ld_use_hazard(dops[i].rt1, dop))
6919 || (!dop && Config.PreciseExceptions)) {
6920 // jump target wants DS result - potential load delay effect
6921 SysPrintf("load delay in DS @%08x (%08x)\n", start + i*4, start);
6922 force_j_to_interpreter = 1;
6923 if (0 <= t && t < i)
6924 dops[t + 1].bt = 1; // expected return from interpreter
6926 else if(i>=2&&dops[i-2].rt1==2&&dops[i].rt1==2&&dops[i].rs1!=2&&dops[i].rs2!=2&&dops[i-1].rs1!=2&&dops[i-1].rs2!=2&&
6927 !(i>=3&&dops[i-3].is_jump)) {
6928 // v0 overwrite like this is a sign of trouble, bail out
6929 SysPrintf("v0 overwrite @%08x (%08x)\n", start + i*4, start);
6930 force_j_to_interpreter = 1;
6934 else if (i > 0 && dops[i-1].is_delay_load
6935 && is_ld_use_hazard(dops[i-1].rt1, &dops[i])
6936 && (i < 2 || !dops[i-2].is_ujump)) {
6937 SysPrintf("load delay @%08x (%08x)\n", start + i*4, start);
6938 for (j = i - 1; j > 0 && dops[j-1].is_delay_load; j--)
6939 if (dops[j-1].rt1 != dops[i-1].rt1)
6941 force_j_to_interpreter = 1;
6943 if (force_j_to_interpreter) {
6946 i = j; // don't compile the problematic branch/load/etc
6948 if (dops[i].is_exception && i > 0 && dops[i-1].is_jump) {
6949 SysPrintf("exception in DS @%08x (%08x)\n", start + i*4, start);
6954 if (i >= 2 && (source[i-2] & 0xffe0f800) == 0x40806000) // MTC0 $12
6956 if (i >= 1 && (source[i-1] & 0xffe0f800) == 0x40806800) // MTC0 $13
6959 /* Is this the end of the block? */
6960 if (i > 0 && dops[i-1].is_ujump) {
6961 if (dops[i-1].rt1 == 0) { // not jal
6962 int found_bbranch = 0, t = (cinfo[i-1].ba - start) / 4;
6963 if ((u_int)(t - i) < 64 && start + (t+64)*4 < pagelimit) {
6964 // scan for a branch back to i+1
6965 for (j = t; j < t + 64; j++) {
6966 int tmpop = source[j] >> 26;
6967 if (tmpop == 1 || ((tmpop & ~3) == 4)) {
6968 int t2 = j + 1 + (int)(signed short)source[j];
6970 //printf("blk expand %08x<-%08x\n", start + (i+1)*4, start + j*4);
6981 if(stop_after_jal) done=1;
6983 if((source[i+1]&0xfc00003f)==0x0d) done=1;
6985 // Don't recompile stuff that's already compiled
6986 if(check_addr(start+i*4+4)) done=1;
6987 // Don't get too close to the limit
6988 if (i > MAXBLOCK - 64)
6991 if (dops[i].itype == HLECALL)
6993 else if (dops[i].itype == INTCALL)
6995 else if (dops[i].is_exception)
6996 done = stop_after_jal ? 1 : 2;
6998 // Does the block continue due to a branch?
7001 if(cinfo[j].ba==start+i*4) done=j=0; // Branch into delay slot
7002 if(cinfo[j].ba==start+i*4+4) done=j=0;
7003 if(cinfo[j].ba==start+i*4+8) done=j=0;
7006 //assert(i<MAXBLOCK-1);
7007 if(start+i*4==pagelimit-4) done=1;
7008 assert(start+i*4<pagelimit);
7009 if (i == MAXBLOCK - 2)
7011 // Stop if we're compiling junk
7012 if (dops[i].itype == INTCALL && (++ni_count > 8 || dops[i].opcode == 0x11)) {
7013 done=stop_after_jal=1;
7014 SysPrintf("Disabled speculative precompilation\n");
7017 while (i > 0 && dops[i-1].is_jump)
7020 assert(!dops[i-1].is_jump);
7024 // Basic liveness analysis for MIPS registers
7025 static noinline void pass2_unneeded_regs(int istart,int iend,int r)
7028 uint64_t u,gte_u,b,gte_b;
7029 uint64_t temp_u,temp_gte_u=0;
7030 uint64_t gte_u_unknown=0;
7031 if (HACK_ENABLED(NDHACK_GTE_UNNEEDED))
7035 gte_u=gte_u_unknown;
7037 //u=unneeded_reg[iend+1];
7039 gte_u=gte_unneeded[iend+1];
7042 for (i=iend;i>=istart;i--)
7044 //printf("unneeded registers i=%d (%d,%d) r=%d\n",i,istart,iend,r);
7047 // If subroutine call, flag return address as a possible branch target
7048 if(dops[i].rt1==31 && i<slen-2) dops[i+2].bt=1;
7050 if(cinfo[i].ba<start || cinfo[i].ba>=(start+slen*4))
7052 // Branch out of this block, flush all regs
7054 gte_u=gte_u_unknown;
7055 branch_unneeded_reg[i]=u;
7056 // Merge in delay slot
7057 u|=(1LL<<dops[i+1].rt1)|(1LL<<dops[i+1].rt2);
7058 u&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2));
7061 gte_u&=~gte_rs[i+1];
7065 // Internal branch, flag target
7066 dops[(cinfo[i].ba-start)>>2].bt=1;
7067 if(cinfo[i].ba<=start+i*4) {
7069 if(dops[i].is_ujump)
7071 // Unconditional branch
7075 // Conditional branch (not taken case)
7076 temp_u=unneeded_reg[i+2];
7077 temp_gte_u&=gte_unneeded[i+2];
7079 // Merge in delay slot
7080 temp_u|=(1LL<<dops[i+1].rt1)|(1LL<<dops[i+1].rt2);
7081 temp_u&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2));
7083 temp_gte_u|=gte_rt[i+1];
7084 temp_gte_u&=~gte_rs[i+1];
7085 temp_u|=(1LL<<dops[i].rt1)|(1LL<<dops[i].rt2);
7086 temp_u&=~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2));
7088 temp_gte_u|=gte_rt[i];
7089 temp_gte_u&=~gte_rs[i];
7090 unneeded_reg[i]=temp_u;
7091 gte_unneeded[i]=temp_gte_u;
7092 // Only go three levels deep. This recursion can take an
7093 // excessive amount of time if there are a lot of nested loops.
7095 pass2_unneeded_regs((cinfo[i].ba-start)>>2,i-1,r+1);
7097 unneeded_reg[(cinfo[i].ba-start)>>2]=1;
7098 gte_unneeded[(cinfo[i].ba-start)>>2]=gte_u_unknown;
7101 if (dops[i].is_ujump)
7103 // Unconditional branch
7104 u=unneeded_reg[(cinfo[i].ba-start)>>2];
7105 gte_u=gte_unneeded[(cinfo[i].ba-start)>>2];
7106 branch_unneeded_reg[i]=u;
7107 // Merge in delay slot
7108 u|=(1LL<<dops[i+1].rt1)|(1LL<<dops[i+1].rt2);
7109 u&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2));
7112 gte_u&=~gte_rs[i+1];
7114 // Conditional branch
7115 b=unneeded_reg[(cinfo[i].ba-start)>>2];
7116 gte_b=gte_unneeded[(cinfo[i].ba-start)>>2];
7117 branch_unneeded_reg[i]=b;
7118 // Branch delay slot
7119 b|=(1LL<<dops[i+1].rt1)|(1LL<<dops[i+1].rt2);
7120 b&=~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2));
7123 gte_b&=~gte_rs[i+1];
7127 branch_unneeded_reg[i]&=unneeded_reg[i+2];
7129 branch_unneeded_reg[i]=1;
7136 // Written registers are unneeded
7137 u|=1LL<<dops[i].rt1;
7138 u|=1LL<<dops[i].rt2;
7140 // Accessed registers are needed
7141 u&=~(1LL<<dops[i].rs1);
7142 u&=~(1LL<<dops[i].rs2);
7144 if(gte_rs[i]&&dops[i].rt1&&(unneeded_reg[i+1]&(1ll<<dops[i].rt1)))
7145 gte_u|=gte_rs[i]>e_unneeded[i+1]; // MFC2/CFC2 to dead register, unneeded
7146 if (dops[i].may_except || dops[i].itype == RFE)
7148 // SYSCALL instruction, etc or conditional exception
7151 // Source-target dependencies
7152 // R0 is always unneeded
7156 gte_unneeded[i]=gte_u;
7158 printf("ur (%d,%d) %x: ",istart,iend,start+i*4);
7161 for(r=1;r<=CCREG;r++) {
7162 if((unneeded_reg[i]>>r)&1) {
7163 if(r==HIREG) printf(" HI");
7164 else if(r==LOREG) printf(" LO");
7165 else printf(" r%d",r);
7173 static noinline void pass2a_unneeded_other(void)
7176 for (i = 0; i < slen; i++)
7178 // remove redundant alignment checks
7179 if (dops[i].may_except && (dops[i].is_load || dops[i].is_store)
7180 && dops[i].rt1 != dops[i].rs1 && !dops[i].is_ds)
7182 int base = dops[i].rs1, lsb = cinfo[i].imm, ls_type = dops[i].ls_type;
7183 int mask = ls_type == LS_32 ? 3 : 1;
7185 for (j = i + 1; j < slen; j++) {
7186 if (dops[j].bt || dops[j].is_jump)
7188 if ((dops[j].is_load || dops[j].is_store) && dops[j].rs1 == base
7189 && dops[j].ls_type == ls_type && (cinfo[j].imm & mask) == lsb)
7190 dops[j].may_except = 0;
7191 if (dops[j].rt1 == base)
7198 static noinline void pass3_register_alloc(u_int addr)
7200 struct regstat current; // Current register allocations/status
7201 clear_all_regs(current.regmap_entry);
7202 clear_all_regs(current.regmap);
7203 current.wasdirty = current.dirty = 0;
7204 current.u = unneeded_reg[0];
7205 alloc_reg(¤t, 0, CCREG);
7206 dirty_reg(¤t, CCREG);
7207 current.wasconst = 0;
7208 current.isconst = 0;
7209 current.loadedconst = 0;
7210 current.noevict = 0;
7211 //current.waswritten = 0;
7218 // First instruction is delay slot
7229 for(hr=0;hr<HOST_REGS;hr++)
7231 // Is this really necessary?
7232 if(current.regmap[hr]==0) current.regmap[hr]=-1;
7235 //current.waswritten=0;
7238 memcpy(regmap_pre[i],current.regmap,sizeof(current.regmap));
7239 regs[i].wasconst=current.isconst;
7240 regs[i].wasdirty=current.dirty;
7244 regs[i].loadedconst=0;
7245 if (!dops[i].is_jump) {
7247 current.u=unneeded_reg[i+1]&~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2));
7254 current.u=branch_unneeded_reg[i]&~((1LL<<dops[i+1].rs1)|(1LL<<dops[i+1].rs2));
7255 current.u&=~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2));
7258 SysPrintf("oops, branch at end of block with no delay slot @%08x\n", start + i*4);
7262 assert(dops[i].is_ds == ds);
7264 ds=0; // Skip delay slot, already allocated as part of branch
7265 // ...but we need to alloc it in case something jumps here
7267 current.u=branch_unneeded_reg[i-1]&unneeded_reg[i+1];
7269 current.u=branch_unneeded_reg[i-1];
7271 current.u&=~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2));
7273 struct regstat temp;
7274 memcpy(&temp,¤t,sizeof(current));
7275 temp.wasdirty=temp.dirty;
7276 // TODO: Take into account unconditional branches, as below
7277 delayslot_alloc(&temp,i);
7278 memcpy(regs[i].regmap,temp.regmap,sizeof(temp.regmap));
7279 regs[i].wasdirty=temp.wasdirty;
7280 regs[i].dirty=temp.dirty;
7284 // Create entry (branch target) regmap
7285 for(hr=0;hr<HOST_REGS;hr++)
7287 int r=temp.regmap[hr];
7289 if(r!=regmap_pre[i][hr]) {
7290 regs[i].regmap_entry[hr]=-1;
7295 if((current.u>>r)&1) {
7296 regs[i].regmap_entry[hr]=-1;
7297 regs[i].regmap[hr]=-1;
7298 //Don't clear regs in the delay slot as the branch might need them
7299 //current.regmap[hr]=-1;
7301 regs[i].regmap_entry[hr]=r;
7304 // First instruction expects CCREG to be allocated
7305 if(i==0&&hr==HOST_CCREG)
7306 regs[i].regmap_entry[hr]=CCREG;
7308 regs[i].regmap_entry[hr]=-1;
7312 else { // Not delay slot
7313 current.noevict = 0;
7314 switch(dops[i].itype) {
7316 //current.isconst=0; // DEBUG
7317 //current.wasconst=0; // DEBUG
7318 //regs[i].wasconst=0; // DEBUG
7319 clear_const(¤t,dops[i].rt1);
7320 alloc_cc(¤t,i);
7321 dirty_reg(¤t,CCREG);
7322 if (dops[i].rt1==31) {
7323 alloc_reg(¤t,i,31);
7324 dirty_reg(¤t,31);
7325 //assert(dops[i+1].rs1!=31&&dops[i+1].rs2!=31);
7326 //assert(dops[i+1].rt1!=dops[i].rt1);
7328 alloc_reg(¤t,i,PTEMP);
7332 delayslot_alloc(¤t,i+1);
7333 //current.isconst=0; // DEBUG
7337 //current.isconst=0;
7338 //current.wasconst=0;
7339 //regs[i].wasconst=0;
7340 clear_const(¤t,dops[i].rs1);
7341 clear_const(¤t,dops[i].rt1);
7342 alloc_cc(¤t,i);
7343 dirty_reg(¤t,CCREG);
7344 if (!ds_writes_rjump_rs(i)) {
7345 alloc_reg(¤t,i,dops[i].rs1);
7346 if (dops[i].rt1!=0) {
7347 alloc_reg(¤t,i,dops[i].rt1);
7348 dirty_reg(¤t,dops[i].rt1);
7350 alloc_reg(¤t,i,PTEMP);
7354 if(dops[i].rs1==31) { // JALR
7355 alloc_reg(¤t,i,RHASH);
7356 alloc_reg(¤t,i,RHTBL);
7359 delayslot_alloc(¤t,i+1);
7361 // The delay slot overwrites our source register,
7362 // allocate a temporary register to hold the old value.
7366 delayslot_alloc(¤t,i+1);
7368 alloc_reg(¤t,i,RTEMP);
7370 //current.isconst=0; // DEBUG
7375 //current.isconst=0;
7376 //current.wasconst=0;
7377 //regs[i].wasconst=0;
7378 clear_const(¤t,dops[i].rs1);
7379 clear_const(¤t,dops[i].rs2);
7380 if((dops[i].opcode&0x3E)==4) // BEQ/BNE
7382 alloc_cc(¤t,i);
7383 dirty_reg(¤t,CCREG);
7384 if(dops[i].rs1) alloc_reg(¤t,i,dops[i].rs1);
7385 if(dops[i].rs2) alloc_reg(¤t,i,dops[i].rs2);
7386 if((dops[i].rs1&&(dops[i].rs1==dops[i+1].rt1||dops[i].rs1==dops[i+1].rt2))||
7387 (dops[i].rs2&&(dops[i].rs2==dops[i+1].rt1||dops[i].rs2==dops[i+1].rt2))) {
7388 // The delay slot overwrites one of our conditions.
7389 // Allocate the branch condition registers instead.
7393 if(dops[i].rs1) alloc_reg(¤t,i,dops[i].rs1);
7394 if(dops[i].rs2) alloc_reg(¤t,i,dops[i].rs2);
7399 delayslot_alloc(¤t,i+1);
7403 if((dops[i].opcode&0x3E)==6) // BLEZ/BGTZ
7405 alloc_cc(¤t,i);
7406 dirty_reg(¤t,CCREG);
7407 alloc_reg(¤t,i,dops[i].rs1);
7408 if(dops[i].rs1&&(dops[i].rs1==dops[i+1].rt1||dops[i].rs1==dops[i+1].rt2)) {
7409 // The delay slot overwrites one of our conditions.
7410 // Allocate the branch condition registers instead.
7414 if(dops[i].rs1) alloc_reg(¤t,i,dops[i].rs1);
7419 delayslot_alloc(¤t,i+1);
7423 // Don't alloc the delay slot yet because we might not execute it
7424 if((dops[i].opcode&0x3E)==0x14) // BEQL/BNEL
7429 alloc_cc(¤t,i);
7430 dirty_reg(¤t,CCREG);
7431 alloc_reg(¤t,i,dops[i].rs1);
7432 alloc_reg(¤t,i,dops[i].rs2);
7435 if((dops[i].opcode&0x3E)==0x16) // BLEZL/BGTZL
7440 alloc_cc(¤t,i);
7441 dirty_reg(¤t,CCREG);
7442 alloc_reg(¤t,i,dops[i].rs1);
7445 //current.isconst=0;
7448 clear_const(¤t,dops[i].rs1);
7449 clear_const(¤t,dops[i].rt1);
7451 alloc_cc(¤t,i);
7452 dirty_reg(¤t,CCREG);
7453 alloc_reg(¤t,i,dops[i].rs1);
7454 if (dops[i].rt1 == 31) { // BLTZAL/BGEZAL
7455 alloc_reg(¤t,i,31);
7456 dirty_reg(¤t,31);
7459 (dops[i].rs1==dops[i+1].rt1||dops[i].rs1==dops[i+1].rt2)) // The delay slot overwrites the branch condition.
7460 ||(dops[i].rt1 == 31 && dops[i].rs1 == 31) // overwrites it's own condition
7461 ||(dops[i].rt1==31&&(dops[i+1].rs1==31||dops[i+1].rs2==31||dops[i+1].rt1==31||dops[i+1].rt2==31))) { // DS touches $ra
7462 // Allocate the branch condition registers instead.
7466 if(dops[i].rs1) alloc_reg(¤t,i,dops[i].rs1);
7471 delayslot_alloc(¤t,i+1);
7475 //current.isconst=0;
7478 imm16_alloc(¤t,i);
7482 load_alloc(¤t,i);
7486 store_alloc(¤t,i);
7489 alu_alloc(¤t,i);
7492 shift_alloc(¤t,i);
7495 multdiv_alloc(¤t,i);
7498 shiftimm_alloc(¤t,i);
7501 mov_alloc(¤t,i);
7504 cop0_alloc(¤t,i);
7507 rfe_alloc(¤t,i);
7510 cop2_alloc(¤t,i);
7513 c2ls_alloc(¤t,i);
7516 c2op_alloc(¤t,i);
7521 syscall_alloc(¤t,i);
7525 // Create entry (branch target) regmap
7526 for(hr=0;hr<HOST_REGS;hr++)
7529 r=current.regmap[hr];
7531 if(r!=regmap_pre[i][hr]) {
7532 // TODO: delay slot (?)
7533 or=get_reg(regmap_pre[i],r); // Get old mapping for this register
7534 if(or<0||r>=TEMPREG){
7535 regs[i].regmap_entry[hr]=-1;
7539 // Just move it to a different register
7540 regs[i].regmap_entry[hr]=r;
7541 // If it was dirty before, it's still dirty
7542 if((regs[i].wasdirty>>or)&1) dirty_reg(¤t,r);
7549 regs[i].regmap_entry[hr]=0;
7554 if((current.u>>r)&1) {
7555 regs[i].regmap_entry[hr]=-1;
7556 //regs[i].regmap[hr]=-1;
7557 current.regmap[hr]=-1;
7559 regs[i].regmap_entry[hr]=r;
7563 // Branches expect CCREG to be allocated at the target
7564 if(regmap_pre[i][hr]==CCREG)
7565 regs[i].regmap_entry[hr]=CCREG;
7567 regs[i].regmap_entry[hr]=-1;
7570 memcpy(regs[i].regmap,current.regmap,sizeof(current.regmap));
7573 #if 0 // see do_store_smc_check()
7574 if(i>0&&(dops[i-1].itype==STORE||dops[i-1].itype==STORELR||(dops[i-1].itype==C2LS&&dops[i-1].opcode==0x3a))&&(u_int)cinfo[i-1].imm<0x800)
7575 current.waswritten|=1<<dops[i-1].rs1;
7576 current.waswritten&=~(1<<dops[i].rt1);
7577 current.waswritten&=~(1<<dops[i].rt2);
7578 if((dops[i].itype==STORE||dops[i].itype==STORELR||(dops[i].itype==C2LS&&dops[i].opcode==0x3a))&&(u_int)cinfo[i].imm>=0x800)
7579 current.waswritten&=~(1<<dops[i].rs1);
7582 /* Branch post-alloc */
7585 current.wasdirty=current.dirty;
7586 switch(dops[i-1].itype) {
7588 memcpy(&branch_regs[i-1],¤t,sizeof(current));
7589 branch_regs[i-1].isconst=0;
7590 branch_regs[i-1].wasconst=0;
7591 branch_regs[i-1].u=branch_unneeded_reg[i-1]&~((1LL<<dops[i-1].rs1)|(1LL<<dops[i-1].rs2));
7592 alloc_cc(&branch_regs[i-1],i-1);
7593 dirty_reg(&branch_regs[i-1],CCREG);
7594 if(dops[i-1].rt1==31) { // JAL
7595 alloc_reg(&branch_regs[i-1],i-1,31);
7596 dirty_reg(&branch_regs[i-1],31);
7598 memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap));
7599 memcpy(constmap[i],constmap[i-1],sizeof(constmap[i]));
7602 memcpy(&branch_regs[i-1],¤t,sizeof(current));
7603 branch_regs[i-1].isconst=0;
7604 branch_regs[i-1].wasconst=0;
7605 branch_regs[i-1].u=branch_unneeded_reg[i-1]&~((1LL<<dops[i-1].rs1)|(1LL<<dops[i-1].rs2));
7606 alloc_cc(&branch_regs[i-1],i-1);
7607 dirty_reg(&branch_regs[i-1],CCREG);
7608 alloc_reg(&branch_regs[i-1],i-1,dops[i-1].rs1);
7609 if(dops[i-1].rt1!=0) { // JALR
7610 alloc_reg(&branch_regs[i-1],i-1,dops[i-1].rt1);
7611 dirty_reg(&branch_regs[i-1],dops[i-1].rt1);
7614 if(dops[i-1].rs1==31) { // JALR
7615 alloc_reg(&branch_regs[i-1],i-1,RHASH);
7616 alloc_reg(&branch_regs[i-1],i-1,RHTBL);
7619 memcpy(&branch_regs[i-1].regmap_entry,&branch_regs[i-1].regmap,sizeof(current.regmap));
7620 memcpy(constmap[i],constmap[i-1],sizeof(constmap[i]));
7623 if((dops[i-1].opcode&0x3E)==4) // BEQ/BNE
7625 alloc_cc(¤t,i-1);
7626 dirty_reg(¤t,CCREG);
7627 if((dops[i-1].rs1&&(dops[i-1].rs1==dops[i].rt1||dops[i-1].rs1==dops[i].rt2))||
7628 (dops[i-1].rs2&&(dops[i-1].rs2==dops[i].rt1||dops[i-1].rs2==dops[i].rt2))) {
7629 // The delay slot overwrote one of our conditions
7630 // Delay slot goes after the test (in order)
7631 current.u=branch_unneeded_reg[i-1]&~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2));
7633 delayslot_alloc(¤t,i);
7638 current.u=branch_unneeded_reg[i-1]&~((1LL<<dops[i-1].rs1)|(1LL<<dops[i-1].rs2));
7639 // Alloc the branch condition registers
7640 if(dops[i-1].rs1) alloc_reg(¤t,i-1,dops[i-1].rs1);
7641 if(dops[i-1].rs2) alloc_reg(¤t,i-1,dops[i-1].rs2);
7643 memcpy(&branch_regs[i-1],¤t,sizeof(current));
7644 branch_regs[i-1].isconst=0;
7645 branch_regs[i-1].wasconst=0;
7646 memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap));
7647 memcpy(constmap[i],constmap[i-1],sizeof(constmap[i]));
7650 if((dops[i-1].opcode&0x3E)==6) // BLEZ/BGTZ
7652 alloc_cc(¤t,i-1);
7653 dirty_reg(¤t,CCREG);
7654 if(dops[i-1].rs1==dops[i].rt1||dops[i-1].rs1==dops[i].rt2) {
7655 // The delay slot overwrote the branch condition
7656 // Delay slot goes after the test (in order)
7657 current.u=branch_unneeded_reg[i-1]&~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2));
7659 delayslot_alloc(¤t,i);
7664 current.u=branch_unneeded_reg[i-1]&~(1LL<<dops[i-1].rs1);
7665 // Alloc the branch condition register
7666 alloc_reg(¤t,i-1,dops[i-1].rs1);
7668 memcpy(&branch_regs[i-1],¤t,sizeof(current));
7669 branch_regs[i-1].isconst=0;
7670 branch_regs[i-1].wasconst=0;
7671 memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap));
7672 memcpy(constmap[i],constmap[i-1],sizeof(constmap[i]));
7677 alloc_cc(¤t,i-1);
7678 dirty_reg(¤t,CCREG);
7679 if(dops[i-1].rs1==dops[i].rt1||dops[i-1].rs1==dops[i].rt2) {
7680 // The delay slot overwrote the branch condition
7681 // Delay slot goes after the test (in order)
7682 current.u=branch_unneeded_reg[i-1]&~((1LL<<dops[i].rs1)|(1LL<<dops[i].rs2));
7684 delayslot_alloc(¤t,i);
7689 current.u=branch_unneeded_reg[i-1]&~(1LL<<dops[i-1].rs1);
7690 // Alloc the branch condition register
7691 alloc_reg(¤t,i-1,dops[i-1].rs1);
7693 memcpy(&branch_regs[i-1],¤t,sizeof(current));
7694 branch_regs[i-1].isconst=0;
7695 branch_regs[i-1].wasconst=0;
7696 memcpy(&branch_regs[i-1].regmap_entry,¤t.regmap,sizeof(current.regmap));
7697 memcpy(constmap[i],constmap[i-1],sizeof(constmap[i]));
7702 if (dops[i-1].is_ujump)
7704 if(dops[i-1].rt1==31) // JAL/JALR
7706 // Subroutine call will return here, don't alloc any registers
7708 clear_all_regs(current.regmap);
7709 alloc_reg(¤t,i,CCREG);
7710 dirty_reg(¤t,CCREG);
7714 // Internal branch will jump here, match registers to caller
7716 clear_all_regs(current.regmap);
7717 alloc_reg(¤t,i,CCREG);
7718 dirty_reg(¤t,CCREG);
7721 if(cinfo[j].ba==start+i*4+4) {
7722 memcpy(current.regmap,branch_regs[j].regmap,sizeof(current.regmap));
7723 current.dirty=branch_regs[j].dirty;
7728 if(cinfo[j].ba==start+i*4+4) {
7729 for(hr=0;hr<HOST_REGS;hr++) {
7730 if(current.regmap[hr]!=branch_regs[j].regmap[hr]) {
7731 current.regmap[hr]=-1;
7733 current.dirty&=branch_regs[j].dirty;
7742 // Count cycles in between branches
7743 cinfo[i].ccadj = CLOCK_ADJUST(cc);
7744 if (i > 0 && (dops[i-1].is_jump || dops[i].is_exception))
7748 #if !defined(DRC_DBG)
7749 else if(dops[i].itype==C2OP&>e_cycletab[source[i]&0x3f]>2)
7751 // this should really be removed since the real stalls have been implemented,
7752 // but doing so causes sizeable perf regression against the older version
7753 u_int gtec = gte_cycletab[source[i] & 0x3f];
7754 cc += HACK_ENABLED(NDHACK_NO_STALLS) ? gtec/2 : 2;
7756 else if(i>1&&dops[i].itype==STORE&&dops[i-1].itype==STORE&&dops[i-2].itype==STORE&&!dops[i].bt)
7760 else if(dops[i].itype==C2LS)
7762 // same as with C2OP
7763 cc += HACK_ENABLED(NDHACK_NO_STALLS) ? 4 : 2;
7771 if(!dops[i].is_ds) {
7772 regs[i].dirty=current.dirty;
7773 regs[i].isconst=current.isconst;
7774 memcpy(constmap[i],current_constmap,sizeof(constmap[i]));
7776 for(hr=0;hr<HOST_REGS;hr++) {
7777 if(hr!=EXCLUDE_REG&®s[i].regmap[hr]>=0) {
7778 if(regmap_pre[i][hr]!=regs[i].regmap[hr]) {
7779 regs[i].wasconst&=~(1<<hr);
7783 //regs[i].waswritten=current.waswritten;
7787 static noinline void pass4_cull_unused_regs(void)
7789 u_int last_needed_regs[4] = {0,0,0,0};
7793 for (i=slen-1;i>=0;i--)
7796 __builtin_prefetch(regs[i-2].regmap);
7799 if(cinfo[i].ba<start || cinfo[i].ba>=(start+slen*4))
7801 // Branch out of this block, don't need anything
7807 // Need whatever matches the target
7809 int t=(cinfo[i].ba-start)>>2;
7810 for(hr=0;hr<HOST_REGS;hr++)
7812 if(regs[i].regmap_entry[hr]>=0) {
7813 if(regs[i].regmap_entry[hr]==regs[t].regmap_entry[hr]) nr|=1<<hr;
7817 // Conditional branch may need registers for following instructions
7818 if (!dops[i].is_ujump)
7821 nr |= last_needed_regs[(i+2) & 3];
7822 for(hr=0;hr<HOST_REGS;hr++)
7824 if(regmap_pre[i+2][hr]>=0&&get_reg(regs[i+2].regmap_entry,regmap_pre[i+2][hr])<0) nr&=~(1<<hr);
7825 //if((regmap_entry[i+2][hr])>=0) if(!((nr>>hr)&1)) printf("%x-bogus(%d=%d)\n",start+i*4,hr,regmap_entry[i+2][hr]);
7829 // Don't need stuff which is overwritten
7830 //if(regs[i].regmap[hr]!=regmap_pre[i][hr]) nr&=~(1<<hr);
7831 //if(regs[i].regmap[hr]<0) nr&=~(1<<hr);
7832 // Merge in delay slot
7833 if (dops[i+1].rt1) nr &= ~get_regm(regs[i].regmap, dops[i+1].rt1);
7834 if (dops[i+1].rt2) nr &= ~get_regm(regs[i].regmap, dops[i+1].rt2);
7835 nr |= get_regm(regmap_pre[i], dops[i+1].rs1);
7836 nr |= get_regm(regmap_pre[i], dops[i+1].rs2);
7837 nr |= get_regm(regs[i].regmap_entry, dops[i+1].rs1);
7838 nr |= get_regm(regs[i].regmap_entry, dops[i+1].rs2);
7839 if (ram_offset && (dops[i+1].is_load || dops[i+1].is_store)) {
7840 nr |= get_regm(regmap_pre[i], ROREG);
7841 nr |= get_regm(regs[i].regmap_entry, ROREG);
7843 if (dops[i+1].is_store) {
7844 nr |= get_regm(regmap_pre[i], INVCP);
7845 nr |= get_regm(regs[i].regmap_entry, INVCP);
7848 else if (dops[i].is_exception)
7850 // SYSCALL instruction, etc
7856 for(hr=0;hr<HOST_REGS;hr++) {
7857 if(regmap_pre[i+1][hr]>=0&&get_reg(regs[i+1].regmap_entry,regmap_pre[i+1][hr])<0) nr&=~(1<<hr);
7858 if(regs[i].regmap[hr]!=regmap_pre[i+1][hr]) nr&=~(1<<hr);
7859 if(regs[i].regmap[hr]!=regmap_pre[i][hr]) nr&=~(1<<hr);
7860 if(regs[i].regmap[hr]<0) nr&=~(1<<hr);
7864 // Overwritten registers are not needed
7865 if (dops[i].rt1) nr &= ~get_regm(regs[i].regmap, dops[i].rt1);
7866 if (dops[i].rt2) nr &= ~get_regm(regs[i].regmap, dops[i].rt2);
7867 nr &= ~get_regm(regs[i].regmap, FTEMP);
7868 // Source registers are needed
7869 nr |= get_regm(regmap_pre[i], dops[i].rs1);
7870 nr |= get_regm(regmap_pre[i], dops[i].rs2);
7871 nr |= get_regm(regs[i].regmap_entry, dops[i].rs1);
7872 nr |= get_regm(regs[i].regmap_entry, dops[i].rs2);
7873 if (ram_offset && (dops[i].is_load || dops[i].is_store)) {
7874 nr |= get_regm(regmap_pre[i], ROREG);
7875 nr |= get_regm(regs[i].regmap_entry, ROREG);
7877 if (dops[i].is_store) {
7878 nr |= get_regm(regmap_pre[i], INVCP);
7879 nr |= get_regm(regs[i].regmap_entry, INVCP);
7882 if (i > 0 && !dops[i].bt && regs[i].wasdirty)
7883 for(hr=0;hr<HOST_REGS;hr++)
7885 // Don't store a register immediately after writing it,
7886 // may prevent dual-issue.
7887 // But do so if this is a branch target, otherwise we
7888 // might have to load the register before the branch.
7889 if((regs[i].wasdirty>>hr)&1) {
7890 if((regmap_pre[i][hr]>0&&!((unneeded_reg[i]>>regmap_pre[i][hr])&1))) {
7891 if(dops[i-1].rt1==regmap_pre[i][hr]) nr|=1<<hr;
7892 if(dops[i-1].rt2==regmap_pre[i][hr]) nr|=1<<hr;
7894 if((regs[i].regmap_entry[hr]>0&&!((unneeded_reg[i]>>regs[i].regmap_entry[hr])&1))) {
7895 if(dops[i-1].rt1==regs[i].regmap_entry[hr]) nr|=1<<hr;
7896 if(dops[i-1].rt2==regs[i].regmap_entry[hr]) nr|=1<<hr;
7900 // Cycle count is needed at branches. Assume it is needed at the target too.
7901 if (i == 0 || dops[i].bt || dops[i].may_except || dops[i].itype == CJUMP) {
7902 if(regmap_pre[i][HOST_CCREG]==CCREG) nr|=1<<HOST_CCREG;
7903 if(regs[i].regmap_entry[HOST_CCREG]==CCREG) nr|=1<<HOST_CCREG;
7906 last_needed_regs[i & 3] = nr;
7908 // Deallocate unneeded registers
7909 for(hr=0;hr<HOST_REGS;hr++)
7912 if(regs[i].regmap_entry[hr]!=CCREG) regs[i].regmap_entry[hr]=-1;
7915 int map1 = 0, map2 = 0, temp = 0; // or -1 ??
7916 if (dops[i+1].is_load || dops[i+1].is_store)
7918 if (dops[i+1].is_store)
7920 if(dops[i+1].itype==LOADLR || dops[i+1].itype==STORELR || dops[i+1].itype==C2LS)
7922 if(regs[i].regmap[hr]!=dops[i].rs1 && regs[i].regmap[hr]!=dops[i].rs2 &&
7923 regs[i].regmap[hr]!=dops[i].rt1 && regs[i].regmap[hr]!=dops[i].rt2 &&
7924 regs[i].regmap[hr]!=dops[i+1].rt1 && regs[i].regmap[hr]!=dops[i+1].rt2 &&
7925 regs[i].regmap[hr]!=dops[i+1].rs1 && regs[i].regmap[hr]!=dops[i+1].rs2 &&
7926 regs[i].regmap[hr]!=temp && regs[i].regmap[hr]!=PTEMP &&
7927 regs[i].regmap[hr]!=RHASH && regs[i].regmap[hr]!=RHTBL &&
7928 regs[i].regmap[hr]!=RTEMP && regs[i].regmap[hr]!=CCREG &&
7929 regs[i].regmap[hr]!=map1 && regs[i].regmap[hr]!=map2)
7931 regs[i].regmap[hr]=-1;
7932 regs[i].isconst&=~(1<<hr);
7933 regs[i].dirty&=~(1<<hr);
7934 regs[i+1].wasdirty&=~(1<<hr);
7935 if(branch_regs[i].regmap[hr]!=dops[i].rs1 && branch_regs[i].regmap[hr]!=dops[i].rs2 &&
7936 branch_regs[i].regmap[hr]!=dops[i].rt1 && branch_regs[i].regmap[hr]!=dops[i].rt2 &&
7937 branch_regs[i].regmap[hr]!=dops[i+1].rt1 && branch_regs[i].regmap[hr]!=dops[i+1].rt2 &&
7938 branch_regs[i].regmap[hr]!=dops[i+1].rs1 && branch_regs[i].regmap[hr]!=dops[i+1].rs2 &&
7939 branch_regs[i].regmap[hr]!=temp && branch_regs[i].regmap[hr]!=PTEMP &&
7940 branch_regs[i].regmap[hr]!=RHASH && branch_regs[i].regmap[hr]!=RHTBL &&
7941 branch_regs[i].regmap[hr]!=RTEMP && branch_regs[i].regmap[hr]!=CCREG &&
7942 branch_regs[i].regmap[hr]!=map1 && branch_regs[i].regmap[hr]!=map2)
7944 branch_regs[i].regmap[hr]=-1;
7945 branch_regs[i].regmap_entry[hr]=-1;
7946 if (!dops[i].is_ujump)
7949 regmap_pre[i+2][hr]=-1;
7950 regs[i+2].wasconst&=~(1<<hr);
7961 int map1 = -1, map2 = -1, temp=-1;
7962 if (dops[i].is_load || dops[i].is_store)
7964 if (dops[i].is_store)
7966 if (dops[i].itype==LOADLR || dops[i].itype==STORELR || dops[i].itype==C2LS)
7968 if(regs[i].regmap[hr]!=dops[i].rt1 && regs[i].regmap[hr]!=dops[i].rt2 &&
7969 regs[i].regmap[hr]!=dops[i].rs1 && regs[i].regmap[hr]!=dops[i].rs2 &&
7970 regs[i].regmap[hr]!=temp && regs[i].regmap[hr]!=map1 && regs[i].regmap[hr]!=map2 &&
7971 //(dops[i].itype!=SPAN||regs[i].regmap[hr]!=CCREG)
7972 regs[i].regmap[hr] != CCREG)
7974 if(i<slen-1&&!dops[i].is_ds) {
7975 assert(regs[i].regmap[hr]<64);
7976 if(regmap_pre[i+1][hr]!=-1 || regs[i].regmap[hr]>0)
7977 if(regmap_pre[i+1][hr]!=regs[i].regmap[hr])
7979 SysPrintf("fail: %x (%d %d!=%d)\n",start+i*4,hr,regmap_pre[i+1][hr],regs[i].regmap[hr]);
7980 assert(regmap_pre[i+1][hr]==regs[i].regmap[hr]);
7982 regmap_pre[i+1][hr]=-1;
7983 if(regs[i+1].regmap_entry[hr]==CCREG) regs[i+1].regmap_entry[hr]=-1;
7984 regs[i+1].wasconst&=~(1<<hr);
7986 regs[i].regmap[hr]=-1;
7987 regs[i].isconst&=~(1<<hr);
7988 regs[i].dirty&=~(1<<hr);
7989 regs[i+1].wasdirty&=~(1<<hr);
7998 // If a register is allocated during a loop, try to allocate it for the
7999 // entire loop, if possible. This avoids loading/storing registers
8000 // inside of the loop.
8001 static noinline void pass5a_preallocate1(void)
8004 signed char f_regmap[HOST_REGS];
8005 clear_all_regs(f_regmap);
8006 for(i=0;i<slen-1;i++)
8008 if(dops[i].itype==UJUMP||dops[i].itype==CJUMP||dops[i].itype==SJUMP)
8010 if(cinfo[i].ba>=start && cinfo[i].ba<(start+i*4))
8011 if(dops[i+1].itype==NOP||dops[i+1].itype==MOV||dops[i+1].itype==ALU
8012 ||dops[i+1].itype==SHIFTIMM||dops[i+1].itype==IMM16||dops[i+1].itype==LOAD
8013 ||dops[i+1].itype==STORE||dops[i+1].itype==STORELR
8014 ||dops[i+1].itype==SHIFT
8015 ||dops[i+1].itype==COP2||dops[i+1].itype==C2LS||dops[i+1].itype==C2OP)
8017 int t=(cinfo[i].ba-start)>>2;
8018 if(t > 0 && !dops[t-1].is_jump) // loop_preload can't handle jumps into delay slots
8019 if(t<2||(dops[t-2].itype!=UJUMP&&dops[t-2].itype!=RJUMP)||dops[t-2].rt1!=31) // call/ret assumes no registers allocated
8020 for(hr=0;hr<HOST_REGS;hr++)
8022 if(regs[i].regmap[hr]>=0) {
8023 if(f_regmap[hr]!=regs[i].regmap[hr]) {
8024 // dealloc old register
8026 for(n=0;n<HOST_REGS;n++)
8028 if(f_regmap[n]==regs[i].regmap[hr]) {f_regmap[n]=-1;}
8030 // and alloc new one
8031 f_regmap[hr]=regs[i].regmap[hr];
8034 if(branch_regs[i].regmap[hr]>=0) {
8035 if(f_regmap[hr]!=branch_regs[i].regmap[hr]) {
8036 // dealloc old register
8038 for(n=0;n<HOST_REGS;n++)
8040 if(f_regmap[n]==branch_regs[i].regmap[hr]) {f_regmap[n]=-1;}
8042 // and alloc new one
8043 f_regmap[hr]=branch_regs[i].regmap[hr];
8047 if(count_free_regs(regs[i].regmap)<=cinfo[i+1].min_free_regs)
8048 f_regmap[hr]=branch_regs[i].regmap[hr];
8050 if(count_free_regs(branch_regs[i].regmap)<=cinfo[i+1].min_free_regs)
8051 f_regmap[hr]=branch_regs[i].regmap[hr];
8053 // Avoid dirty->clean transition
8054 #ifdef DESTRUCTIVE_WRITEBACK
8055 if(t>0) if(get_reg(regmap_pre[t],f_regmap[hr])>=0) if((regs[t].wasdirty>>get_reg(regmap_pre[t],f_regmap[hr]))&1) f_regmap[hr]=-1;
8057 // This check is only strictly required in the DESTRUCTIVE_WRITEBACK
8058 // case above, however it's always a good idea. We can't hoist the
8059 // load if the register was already allocated, so there's no point
8060 // wasting time analyzing most of these cases. It only "succeeds"
8061 // when the mapping was different and the load can be replaced with
8062 // a mov, which is of negligible benefit. So such cases are
8064 if(f_regmap[hr]>0) {
8065 if(regs[t].regmap[hr]==f_regmap[hr]||(regs[t].regmap_entry[hr]<0&&get_reg(regmap_pre[t],f_regmap[hr])<0)) {
8069 //printf("Test %x -> %x, %x %d/%d\n",start+i*4,cinfo[i].ba,start+j*4,hr,r);
8070 if(r<34&&((unneeded_reg[j]>>r)&1)) break;
8072 if(regs[j].regmap[hr]==f_regmap[hr]&&f_regmap[hr]<TEMPREG) {
8073 //printf("Hit %x -> %x, %x %d/%d\n",start+i*4,cinfo[i].ba,start+j*4,hr,r);
8075 if(regs[i].regmap[hr]==-1&&branch_regs[i].regmap[hr]==-1) {
8076 if(get_reg(regs[i].regmap,f_regmap[hr])>=0) break;
8077 if(get_reg(regs[i+2].regmap,f_regmap[hr])>=0) break;
8079 while(k>1&®s[k-1].regmap[hr]==-1) {
8080 if(count_free_regs(regs[k-1].regmap)<=cinfo[k-1].min_free_regs) {
8081 //printf("no free regs for store %x\n",start+(k-1)*4);
8084 if(get_reg(regs[k-1].regmap,f_regmap[hr])>=0) {
8085 //printf("no-match due to different register\n");
8088 if (dops[k-2].is_jump) {
8089 //printf("no-match due to branch\n");
8092 // call/ret fast path assumes no registers allocated
8093 if(k>2&&(dops[k-3].itype==UJUMP||dops[k-3].itype==RJUMP)&&dops[k-3].rt1==31) {
8098 if(regs[k-1].regmap[hr]==f_regmap[hr]&®map_pre[k][hr]==f_regmap[hr]) {
8099 //printf("Extend r%d, %x ->\n",hr,start+k*4);
8101 regs[k].regmap_entry[hr]=f_regmap[hr];
8102 regs[k].regmap[hr]=f_regmap[hr];
8103 regmap_pre[k+1][hr]=f_regmap[hr];
8104 regs[k].wasdirty&=~(1<<hr);
8105 regs[k].dirty&=~(1<<hr);
8106 regs[k].wasdirty|=(1<<hr)®s[k-1].dirty;
8107 regs[k].dirty|=(1<<hr)®s[k].wasdirty;
8108 regs[k].wasconst&=~(1<<hr);
8109 regs[k].isconst&=~(1<<hr);
8114 //printf("Fail Extend r%d, %x ->\n",hr,start+k*4);
8117 assert(regs[i-1].regmap[hr]==f_regmap[hr]);
8118 if(regs[i-1].regmap[hr]==f_regmap[hr]&®map_pre[i][hr]==f_regmap[hr]) {
8119 //printf("OK fill %x (r%d)\n",start+i*4,hr);
8120 regs[i].regmap_entry[hr]=f_regmap[hr];
8121 regs[i].regmap[hr]=f_regmap[hr];
8122 regs[i].wasdirty&=~(1<<hr);
8123 regs[i].dirty&=~(1<<hr);
8124 regs[i].wasdirty|=(1<<hr)®s[i-1].dirty;
8125 regs[i].dirty|=(1<<hr)®s[i-1].dirty;
8126 regs[i].wasconst&=~(1<<hr);
8127 regs[i].isconst&=~(1<<hr);
8128 branch_regs[i].regmap_entry[hr]=f_regmap[hr];
8129 branch_regs[i].wasdirty&=~(1<<hr);
8130 branch_regs[i].wasdirty|=(1<<hr)®s[i].dirty;
8131 branch_regs[i].regmap[hr]=f_regmap[hr];
8132 branch_regs[i].dirty&=~(1<<hr);
8133 branch_regs[i].dirty|=(1<<hr)®s[i].dirty;
8134 branch_regs[i].wasconst&=~(1<<hr);
8135 branch_regs[i].isconst&=~(1<<hr);
8136 if (!dops[i].is_ujump) {
8137 regmap_pre[i+2][hr]=f_regmap[hr];
8138 regs[i+2].wasdirty&=~(1<<hr);
8139 regs[i+2].wasdirty|=(1<<hr)®s[i].dirty;
8144 // Alloc register clean at beginning of loop,
8145 // but may dirty it in pass 6
8146 regs[k].regmap_entry[hr]=f_regmap[hr];
8147 regs[k].regmap[hr]=f_regmap[hr];
8148 regs[k].dirty&=~(1<<hr);
8149 regs[k].wasconst&=~(1<<hr);
8150 regs[k].isconst&=~(1<<hr);
8151 if (dops[k].is_jump) {
8152 branch_regs[k].regmap_entry[hr]=f_regmap[hr];
8153 branch_regs[k].regmap[hr]=f_regmap[hr];
8154 branch_regs[k].dirty&=~(1<<hr);
8155 branch_regs[k].wasconst&=~(1<<hr);
8156 branch_regs[k].isconst&=~(1<<hr);
8157 if (!dops[k].is_ujump) {
8158 regmap_pre[k+2][hr]=f_regmap[hr];
8159 regs[k+2].wasdirty&=~(1<<hr);
8164 regmap_pre[k+1][hr]=f_regmap[hr];
8165 regs[k+1].wasdirty&=~(1<<hr);
8168 if(regs[j].regmap[hr]==f_regmap[hr])
8169 regs[j].regmap_entry[hr]=f_regmap[hr];
8173 if(regs[j].regmap[hr]>=0)
8175 if(get_reg(regs[j].regmap,f_regmap[hr])>=0) {
8176 //printf("no-match due to different register\n");
8179 if (dops[j].is_ujump)
8181 // Stop on unconditional branch
8184 if(dops[j].itype==CJUMP||dops[j].itype==SJUMP)
8187 if(count_free_regs(regs[j].regmap)<=cinfo[j+1].min_free_regs)
8190 if(count_free_regs(branch_regs[j].regmap)<=cinfo[j+1].min_free_regs)
8193 if(get_reg(branch_regs[j].regmap,f_regmap[hr])>=0) {
8194 //printf("no-match due to different register (branch)\n");
8198 if(count_free_regs(regs[j].regmap)<=cinfo[j].min_free_regs) {
8199 //printf("No free regs for store %x\n",start+j*4);
8202 assert(f_regmap[hr]<64);
8209 // Non branch or undetermined branch target
8210 for(hr=0;hr<HOST_REGS;hr++)
8212 if(hr!=EXCLUDE_REG) {
8213 if(regs[i].regmap[hr]>=0) {
8214 if(f_regmap[hr]!=regs[i].regmap[hr]) {
8215 // dealloc old register
8217 for(n=0;n<HOST_REGS;n++)
8219 if(f_regmap[n]==regs[i].regmap[hr]) {f_regmap[n]=-1;}
8221 // and alloc new one
8222 f_regmap[hr]=regs[i].regmap[hr];
8227 // Try to restore cycle count at branch targets
8229 for(j=i;j<slen-1;j++) {
8230 if(regs[j].regmap[HOST_CCREG]!=-1) break;
8231 if(count_free_regs(regs[j].regmap)<=cinfo[j].min_free_regs) {
8232 //printf("no free regs for store %x\n",start+j*4);
8236 if(regs[j].regmap[HOST_CCREG]==CCREG) {
8238 //printf("Extend CC, %x -> %x\n",start+k*4,start+j*4);
8240 regs[k].regmap_entry[HOST_CCREG]=CCREG;
8241 regs[k].regmap[HOST_CCREG]=CCREG;
8242 regmap_pre[k+1][HOST_CCREG]=CCREG;
8243 regs[k+1].wasdirty|=1<<HOST_CCREG;
8244 regs[k].dirty|=1<<HOST_CCREG;
8245 regs[k].wasconst&=~(1<<HOST_CCREG);
8246 regs[k].isconst&=~(1<<HOST_CCREG);
8249 regs[j].regmap_entry[HOST_CCREG]=CCREG;
8251 // Work backwards from the branch target
8252 if(j>i&&f_regmap[HOST_CCREG]==CCREG)
8254 //printf("Extend backwards\n");
8257 while(regs[k-1].regmap[HOST_CCREG]==-1) {
8258 if(count_free_regs(regs[k-1].regmap)<=cinfo[k-1].min_free_regs) {
8259 //printf("no free regs for store %x\n",start+(k-1)*4);
8264 if(regs[k-1].regmap[HOST_CCREG]==CCREG) {
8265 //printf("Extend CC, %x ->\n",start+k*4);
8267 regs[k].regmap_entry[HOST_CCREG]=CCREG;
8268 regs[k].regmap[HOST_CCREG]=CCREG;
8269 regmap_pre[k+1][HOST_CCREG]=CCREG;
8270 regs[k+1].wasdirty|=1<<HOST_CCREG;
8271 regs[k].dirty|=1<<HOST_CCREG;
8272 regs[k].wasconst&=~(1<<HOST_CCREG);
8273 regs[k].isconst&=~(1<<HOST_CCREG);
8278 //printf("Fail Extend CC, %x ->\n",start+k*4);
8282 if(dops[i].itype!=STORE&&dops[i].itype!=STORELR&&dops[i].itype!=SHIFT&&
8283 dops[i].itype!=NOP&&dops[i].itype!=MOV&&dops[i].itype!=ALU&&dops[i].itype!=SHIFTIMM&&
8284 dops[i].itype!=IMM16&&dops[i].itype!=LOAD)
8286 memcpy(f_regmap,regs[i].regmap,sizeof(f_regmap));
8292 // This allocates registers (if possible) one instruction prior
8293 // to use, which can avoid a load-use penalty on certain CPUs.
8294 static noinline void pass5b_preallocate2(void)
8297 for(i=0;i<slen-1;i++)
8299 if (!i || !dops[i-1].is_jump)
8303 int j, can_steal = 1;
8304 for (j = i; j < i + 2; j++) {
8306 if (cinfo[j].min_free_regs == 0)
8308 for (hr = 0; hr < HOST_REGS; hr++)
8309 if (hr != EXCLUDE_REG && regs[j].regmap[hr] < 0)
8311 if (free_regs <= cinfo[j].min_free_regs) {
8318 if(dops[i].itype==ALU||dops[i].itype==MOV||dops[i].itype==LOAD||dops[i].itype==SHIFTIMM||dops[i].itype==IMM16
8319 ||(dops[i].itype==COP2&&dops[i].opcode2<3))
8322 if((hr=get_reg(regs[i+1].regmap,dops[i+1].rs1))>=0)
8324 if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0)
8326 regs[i].regmap[hr]=regs[i+1].regmap[hr];
8327 regmap_pre[i+1][hr]=regs[i+1].regmap[hr];
8328 regs[i+1].regmap_entry[hr]=regs[i+1].regmap[hr];
8329 regs[i].isconst&=~(1<<hr);
8330 regs[i].isconst|=regs[i+1].isconst&(1<<hr);
8331 constmap[i][hr]=constmap[i+1][hr];
8332 regs[i+1].wasdirty&=~(1<<hr);
8333 regs[i].dirty&=~(1<<hr);
8338 if((hr=get_reg(regs[i+1].regmap,dops[i+1].rs2))>=0)
8340 if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0)
8342 regs[i].regmap[hr]=regs[i+1].regmap[hr];
8343 regmap_pre[i+1][hr]=regs[i+1].regmap[hr];
8344 regs[i+1].regmap_entry[hr]=regs[i+1].regmap[hr];
8345 regs[i].isconst&=~(1<<hr);
8346 regs[i].isconst|=regs[i+1].isconst&(1<<hr);
8347 constmap[i][hr]=constmap[i+1][hr];
8348 regs[i+1].wasdirty&=~(1<<hr);
8349 regs[i].dirty&=~(1<<hr);
8353 // Preload target address for load instruction (non-constant)
8354 if(dops[i+1].itype==LOAD&&dops[i+1].rs1&&get_reg(regs[i+1].regmap,dops[i+1].rs1)<0) {
8355 if((hr=get_reg_w(regs[i+1].regmap, dops[i+1].rt1))>=0)
8357 if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0)
8359 regs[i].regmap[hr]=dops[i+1].rs1;
8360 regmap_pre[i+1][hr]=dops[i+1].rs1;
8361 regs[i+1].regmap_entry[hr]=dops[i+1].rs1;
8362 regs[i].isconst&=~(1<<hr);
8363 regs[i].isconst|=regs[i+1].isconst&(1<<hr);
8364 constmap[i][hr]=constmap[i+1][hr];
8365 regs[i+1].wasdirty&=~(1<<hr);
8366 regs[i].dirty&=~(1<<hr);
8370 // Load source into target register
8371 if(dops[i+1].use_lt1&&get_reg(regs[i+1].regmap,dops[i+1].rs1)<0) {
8372 if((hr=get_reg_w(regs[i+1].regmap, dops[i+1].rt1))>=0)
8374 if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0)
8376 regs[i].regmap[hr]=dops[i+1].rs1;
8377 regmap_pre[i+1][hr]=dops[i+1].rs1;
8378 regs[i+1].regmap_entry[hr]=dops[i+1].rs1;
8379 regs[i].isconst&=~(1<<hr);
8380 regs[i].isconst|=regs[i+1].isconst&(1<<hr);
8381 constmap[i][hr]=constmap[i+1][hr];
8382 regs[i+1].wasdirty&=~(1<<hr);
8383 regs[i].dirty&=~(1<<hr);
8387 // Address for store instruction (non-constant)
8388 if (dops[i+1].is_store) { // SB/SH/SW/SWC2
8389 if(get_reg(regs[i+1].regmap,dops[i+1].rs1)<0) {
8390 hr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1);
8391 if(hr<0) hr=get_reg_temp(regs[i+1].regmap);
8393 regs[i+1].regmap[hr]=AGEN1+((i+1)&1);
8394 regs[i+1].isconst&=~(1<<hr);
8395 regs[i+1].dirty&=~(1<<hr);
8396 regs[i+2].wasdirty&=~(1<<hr);
8399 #if 0 // what is this for? double allocs $0 in ps1_rom.bin
8400 if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0)
8402 regs[i].regmap[hr]=dops[i+1].rs1;
8403 regmap_pre[i+1][hr]=dops[i+1].rs1;
8404 regs[i+1].regmap_entry[hr]=dops[i+1].rs1;
8405 regs[i].isconst&=~(1<<hr);
8406 regs[i].isconst|=regs[i+1].isconst&(1<<hr);
8407 constmap[i][hr]=constmap[i+1][hr];
8408 regs[i+1].wasdirty&=~(1<<hr);
8409 regs[i].dirty&=~(1<<hr);
8414 if (dops[i+1].itype == LOADLR || dops[i+1].opcode == 0x32) { // LWC2
8415 if(get_reg(regs[i+1].regmap,dops[i+1].rs1)<0) {
8417 hr=get_reg(regs[i+1].regmap,FTEMP);
8419 if(regs[i].regmap[hr]<0&®s[i+1].regmap_entry[hr]<0)
8421 regs[i].regmap[hr]=dops[i+1].rs1;
8422 regmap_pre[i+1][hr]=dops[i+1].rs1;
8423 regs[i+1].regmap_entry[hr]=dops[i+1].rs1;
8424 regs[i].isconst&=~(1<<hr);
8425 regs[i].isconst|=regs[i+1].isconst&(1<<hr);
8426 constmap[i][hr]=constmap[i+1][hr];
8427 regs[i+1].wasdirty&=~(1<<hr);
8428 regs[i].dirty&=~(1<<hr);
8430 else if((nr=get_reg2(regs[i].regmap,regs[i+1].regmap,-1))>=0)
8432 // move it to another register
8433 regs[i+1].regmap[hr]=-1;
8434 regmap_pre[i+2][hr]=-1;
8435 regs[i+1].regmap[nr]=FTEMP;
8436 regmap_pre[i+2][nr]=FTEMP;
8437 regs[i].regmap[nr]=dops[i+1].rs1;
8438 regmap_pre[i+1][nr]=dops[i+1].rs1;
8439 regs[i+1].regmap_entry[nr]=dops[i+1].rs1;
8440 regs[i].isconst&=~(1<<nr);
8441 regs[i+1].isconst&=~(1<<nr);
8442 regs[i].dirty&=~(1<<nr);
8443 regs[i+1].wasdirty&=~(1<<nr);
8444 regs[i+1].dirty&=~(1<<nr);
8445 regs[i+2].wasdirty&=~(1<<nr);
8449 if(dops[i+1].itype==LOAD||dops[i+1].itype==LOADLR||dops[i+1].itype==STORE||dops[i+1].itype==STORELR/*||dops[i+1].itype==C2LS*/) {
8451 if(dops[i+1].itype==LOAD)
8452 hr=get_reg_w(regs[i+1].regmap, dops[i+1].rt1);
8453 if (dops[i+1].itype == LOADLR || dops[i+1].opcode == 0x32) // LWC2
8454 hr=get_reg(regs[i+1].regmap,FTEMP);
8455 if (dops[i+1].is_store) {
8456 hr=get_reg(regs[i+1].regmap,AGEN1+((i+1)&1));
8457 if(hr<0) hr=get_reg_temp(regs[i+1].regmap);
8459 if(hr>=0&®s[i].regmap[hr]<0) {
8460 int rs=get_reg(regs[i+1].regmap,dops[i+1].rs1);
8461 if(rs>=0&&((regs[i+1].wasconst>>rs)&1)) {
8462 regs[i].regmap[hr]=AGEN1+((i+1)&1);
8463 regmap_pre[i+1][hr]=AGEN1+((i+1)&1);
8464 regs[i+1].regmap_entry[hr]=AGEN1+((i+1)&1);
8465 regs[i].isconst&=~(1<<hr);
8466 regs[i+1].wasdirty&=~(1<<hr);
8467 regs[i].dirty&=~(1<<hr);
8477 // Write back dirty registers as soon as we will no longer modify them,
8478 // so that we don't end up with lots of writes at the branches.
8479 static noinline void pass6_clean_registers(int istart, int iend, int wr)
8481 static u_int wont_dirty[MAXBLOCK];
8482 static u_int will_dirty[MAXBLOCK];
8485 u_int will_dirty_i,will_dirty_next,temp_will_dirty;
8486 u_int wont_dirty_i,wont_dirty_next,temp_wont_dirty;
8488 will_dirty_i=will_dirty_next=0;
8489 wont_dirty_i=wont_dirty_next=0;
8491 will_dirty_i=will_dirty_next=will_dirty[iend+1];
8492 wont_dirty_i=wont_dirty_next=wont_dirty[iend+1];
8494 for (i=iend;i>=istart;i--)
8496 signed char rregmap_i[RRMAP_SIZE];
8497 u_int hr_candirty = 0;
8498 assert(HOST_REGS < 32);
8499 make_rregs(regs[i].regmap, rregmap_i, &hr_candirty);
8500 __builtin_prefetch(regs[i-1].regmap);
8503 signed char branch_rregmap_i[RRMAP_SIZE];
8504 u_int branch_hr_candirty = 0;
8505 make_rregs(branch_regs[i].regmap, branch_rregmap_i, &branch_hr_candirty);
8506 if(cinfo[i].ba<start || cinfo[i].ba>=(start+slen*4))
8508 // Branch out of this block, flush all regs
8510 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31);
8511 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31);
8512 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31);
8513 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31);
8514 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31);
8515 will_dirty_i &= branch_hr_candirty;
8516 if (dops[i].is_ujump)
8518 // Unconditional branch
8520 // Merge in delay slot (will dirty)
8521 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8522 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8523 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31);
8524 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31);
8525 will_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8526 will_dirty_i &= hr_candirty;
8530 // Conditional branch
8531 wont_dirty_i = wont_dirty_next;
8532 // Merge in delay slot (will dirty)
8533 // (the original code had no explanation why these 2 are commented out)
8534 //will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8535 //will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8536 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31);
8537 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31);
8538 will_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8539 will_dirty_i &= hr_candirty;
8541 // Merge in delay slot (wont dirty)
8542 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8543 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8544 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31);
8545 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31);
8546 wont_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8547 wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31);
8548 wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31);
8549 wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31);
8550 wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31);
8551 wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31);
8552 wont_dirty_i &= ~(1u << 31);
8554 #ifndef DESTRUCTIVE_WRITEBACK
8555 branch_regs[i].dirty&=wont_dirty_i;
8557 branch_regs[i].dirty|=will_dirty_i;
8563 if(cinfo[i].ba<=start+i*4) {
8565 if (dops[i].is_ujump)
8567 // Unconditional branch
8570 // Merge in delay slot (will dirty)
8571 temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31);
8572 temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31);
8573 temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31);
8574 temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31);
8575 temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31);
8576 temp_will_dirty &= branch_hr_candirty;
8577 temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8578 temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8579 temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31);
8580 temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31);
8581 temp_will_dirty |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8582 temp_will_dirty &= hr_candirty;
8584 // Conditional branch (not taken case)
8585 temp_will_dirty=will_dirty_next;
8586 temp_wont_dirty=wont_dirty_next;
8587 // Merge in delay slot (will dirty)
8588 temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31);
8589 temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31);
8590 temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31);
8591 temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31);
8592 temp_will_dirty |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31);
8593 temp_will_dirty &= branch_hr_candirty;
8594 //temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8595 //temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8596 temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31);
8597 temp_will_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31);
8598 temp_will_dirty |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8599 temp_will_dirty &= hr_candirty;
8601 // Merge in delay slot (wont dirty)
8602 temp_wont_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8603 temp_wont_dirty |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8604 temp_wont_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31);
8605 temp_wont_dirty |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31);
8606 temp_wont_dirty |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8607 temp_wont_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31);
8608 temp_wont_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31);
8609 temp_wont_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31);
8610 temp_wont_dirty |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31);
8611 temp_wont_dirty |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31);
8612 temp_wont_dirty &= ~(1u << 31);
8613 // Deal with changed mappings
8615 for(r=0;r<HOST_REGS;r++) {
8616 if(r!=EXCLUDE_REG) {
8617 if(regs[i].regmap[r]!=regmap_pre[i][r]) {
8618 temp_will_dirty&=~(1<<r);
8619 temp_wont_dirty&=~(1<<r);
8620 if(regmap_pre[i][r]>0 && regmap_pre[i][r]<34) {
8621 temp_will_dirty|=((unneeded_reg[i]>>regmap_pre[i][r])&1)<<r;
8622 temp_wont_dirty|=((unneeded_reg[i]>>regmap_pre[i][r])&1)<<r;
8624 temp_will_dirty|=1<<r;
8625 temp_wont_dirty|=1<<r;
8632 will_dirty[i]=temp_will_dirty;
8633 wont_dirty[i]=temp_wont_dirty;
8634 pass6_clean_registers((cinfo[i].ba-start)>>2,i-1,0);
8636 // Limit recursion. It can take an excessive amount
8637 // of time if there are a lot of nested loops.
8638 will_dirty[(cinfo[i].ba-start)>>2]=0;
8639 wont_dirty[(cinfo[i].ba-start)>>2]=-1;
8644 if (dops[i].is_ujump)
8646 // Unconditional branch
8649 //if(cinfo[i].ba>start+i*4) { // Disable recursion (for debugging)
8650 for(r=0;r<HOST_REGS;r++) {
8651 if(r!=EXCLUDE_REG) {
8652 if(branch_regs[i].regmap[r]==regs[(cinfo[i].ba-start)>>2].regmap_entry[r]) {
8653 will_dirty_i|=will_dirty[(cinfo[i].ba-start)>>2]&(1<<r);
8654 wont_dirty_i|=wont_dirty[(cinfo[i].ba-start)>>2]&(1<<r);
8656 if(branch_regs[i].regmap[r]>=0) {
8657 will_dirty_i|=((unneeded_reg[(cinfo[i].ba-start)>>2]>>branch_regs[i].regmap[r])&1)<<r;
8658 wont_dirty_i|=((unneeded_reg[(cinfo[i].ba-start)>>2]>>branch_regs[i].regmap[r])&1)<<r;
8663 // Merge in delay slot
8664 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31);
8665 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31);
8666 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31);
8667 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31);
8668 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31);
8669 will_dirty_i &= branch_hr_candirty;
8670 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8671 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8672 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31);
8673 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31);
8674 will_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8675 will_dirty_i &= hr_candirty;
8677 // Conditional branch
8678 will_dirty_i=will_dirty_next;
8679 wont_dirty_i=wont_dirty_next;
8680 //if(cinfo[i].ba>start+i*4) // Disable recursion (for debugging)
8681 for(r=0;r<HOST_REGS;r++) {
8682 if(r!=EXCLUDE_REG) {
8683 signed char target_reg=branch_regs[i].regmap[r];
8684 if(target_reg==regs[(cinfo[i].ba-start)>>2].regmap_entry[r]) {
8685 will_dirty_i&=will_dirty[(cinfo[i].ba-start)>>2]&(1<<r);
8686 wont_dirty_i|=wont_dirty[(cinfo[i].ba-start)>>2]&(1<<r);
8688 else if(target_reg>=0) {
8689 will_dirty_i&=((unneeded_reg[(cinfo[i].ba-start)>>2]>>target_reg)&1)<<r;
8690 wont_dirty_i|=((unneeded_reg[(cinfo[i].ba-start)>>2]>>target_reg)&1)<<r;
8694 // Merge in delay slot
8695 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31);
8696 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31);
8697 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31);
8698 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31);
8699 will_dirty_i |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31);
8700 will_dirty_i &= branch_hr_candirty;
8701 //will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8702 //will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8703 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31);
8704 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31);
8705 will_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8706 will_dirty_i &= hr_candirty;
8708 // Merge in delay slot (won't dirty)
8709 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8710 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8711 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt1) & 31);
8712 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i+1].rt2) & 31);
8713 wont_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8714 wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt1) & 31);
8715 wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i].rt2) & 31);
8716 wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt1) & 31);
8717 wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, dops[i+1].rt2) & 31);
8718 wont_dirty_i |= 1u << (get_rreg(branch_rregmap_i, CCREG) & 31);
8719 wont_dirty_i &= ~(1u << 31);
8721 #ifndef DESTRUCTIVE_WRITEBACK
8722 branch_regs[i].dirty&=wont_dirty_i;
8724 branch_regs[i].dirty|=will_dirty_i;
8729 else if (dops[i].is_exception)
8731 // SYSCALL instruction, etc
8735 will_dirty_next=will_dirty_i;
8736 wont_dirty_next=wont_dirty_i;
8737 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8738 will_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8739 will_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8740 will_dirty_i &= hr_candirty;
8741 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt1) & 31);
8742 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i].rt2) & 31);
8743 wont_dirty_i |= 1u << (get_rreg(rregmap_i, CCREG) & 31);
8744 wont_dirty_i &= ~(1u << 31);
8745 if (i > istart && !dops[i].is_jump) {
8746 // Don't store a register immediately after writing it,
8747 // may prevent dual-issue.
8748 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i-1].rt1) & 31);
8749 wont_dirty_i |= 1u << (get_rreg(rregmap_i, dops[i-1].rt2) & 31);
8752 will_dirty[i]=will_dirty_i;
8753 wont_dirty[i]=wont_dirty_i;
8754 // Mark registers that won't be dirtied as not dirty
8756 regs[i].dirty|=will_dirty_i;
8757 #ifndef DESTRUCTIVE_WRITEBACK
8758 regs[i].dirty&=wont_dirty_i;
8761 if (i < iend-1 && !dops[i].is_ujump) {
8762 for(r=0;r<HOST_REGS;r++) {
8763 if(r!=EXCLUDE_REG) {
8764 if(regs[i].regmap[r]==regmap_pre[i+2][r]) {
8765 regs[i+2].wasdirty&=wont_dirty_i|~(1<<r);
8766 }else {/*printf("i: %x (%d) mismatch(+2): %d\n",start+i*4,i,r);assert(!((wont_dirty_i>>r)&1));*/}
8774 for(r=0;r<HOST_REGS;r++) {
8775 if(r!=EXCLUDE_REG) {
8776 if(regs[i].regmap[r]==regmap_pre[i+1][r]) {
8777 regs[i+1].wasdirty&=wont_dirty_i|~(1<<r);
8778 }else {/*printf("i: %x (%d) mismatch(+1): %d\n",start+i*4,i,r);assert(!((wont_dirty_i>>r)&1));*/}
8785 // Deal with changed mappings
8786 temp_will_dirty=will_dirty_i;
8787 temp_wont_dirty=wont_dirty_i;
8788 for(r=0;r<HOST_REGS;r++) {
8789 if(r!=EXCLUDE_REG) {
8791 if(regs[i].regmap[r]==regmap_pre[i][r]) {
8793 #ifndef DESTRUCTIVE_WRITEBACK
8794 regs[i].wasdirty&=wont_dirty_i|~(1<<r);
8796 regs[i].wasdirty|=will_dirty_i&(1<<r);
8799 else if(regmap_pre[i][r]>=0&&(nr=get_rreg(rregmap_i,regmap_pre[i][r]))>=0) {
8800 // Register moved to a different register
8801 will_dirty_i&=~(1<<r);
8802 wont_dirty_i&=~(1<<r);
8803 will_dirty_i|=((temp_will_dirty>>nr)&1)<<r;
8804 wont_dirty_i|=((temp_wont_dirty>>nr)&1)<<r;
8806 #ifndef DESTRUCTIVE_WRITEBACK
8807 regs[i].wasdirty&=wont_dirty_i|~(1<<r);
8809 regs[i].wasdirty|=will_dirty_i&(1<<r);
8813 will_dirty_i&=~(1<<r);
8814 wont_dirty_i&=~(1<<r);
8815 if(regmap_pre[i][r]>0 && regmap_pre[i][r]<34) {
8816 will_dirty_i|=((unneeded_reg[i]>>regmap_pre[i][r])&1)<<r;
8817 wont_dirty_i|=((unneeded_reg[i]>>regmap_pre[i][r])&1)<<r;
8820 /*printf("i: %x (%d) mismatch: %d\n",start+i*4,i,r);assert(!((will_dirty>>r)&1));*/
8828 static noinline void pass10_expire_blocks(void)
8830 u_int step = MAX_OUTPUT_BLOCK_SIZE / PAGE_COUNT / 2;
8831 // not sizeof(ndrc->translation_cache) due to vita hack
8832 u_int step_mask = ((1u << TARGET_SIZE_2) - 1u) & ~(step - 1u);
8833 u_int end = (out - ndrc->translation_cache + EXPIRITY_OFFSET) & step_mask;
8834 u_int base_shift = __builtin_ctz(MAX_OUTPUT_BLOCK_SIZE);
8837 for (; expirep != end; expirep = ((expirep + step) & step_mask))
8839 u_int base_offs = expirep & ~(MAX_OUTPUT_BLOCK_SIZE - 1);
8840 u_int block_i = expirep / step & (PAGE_COUNT - 1);
8841 u_int phase = (expirep >> (base_shift - 1)) & 1u;
8842 if (!(expirep & (MAX_OUTPUT_BLOCK_SIZE / 2 - 1))) {
8843 inv_debug("EXP: base_offs %x/%lx phase %u\n", base_offs,
8844 (long)(out - ndrc->translation_cache), phase);
8848 hit = blocks_remove_matching_addrs(&blocks[block_i], base_offs, base_shift);
8852 memset(mini_ht, -1, sizeof(mini_ht));
8857 unlink_jumps_tc_range(jumps[block_i], base_offs, base_shift);
8861 static struct block_info *new_block_info(u_int start, u_int len,
8862 const void *source, const void *copy, u_char *beginning, u_short jump_in_count)
8864 struct block_info **b_pptr;
8865 struct block_info *block;
8866 u_int page = get_page(start);
8868 block = malloc(sizeof(*block) + jump_in_count * sizeof(block->jump_in[0]));
8870 assert(jump_in_count > 0);
8871 block->source = source;
8873 block->start = start;
8875 block->reg_sv_flags = 0;
8876 block->tc_offs = beginning - ndrc->translation_cache;
8877 //block->tc_len = out - beginning;
8878 block->is_dirty = 0;
8879 block->inv_near_misses = 0;
8880 block->jump_in_cnt = jump_in_count;
8882 // insert sorted by start mirror-unmasked vaddr
8883 for (b_pptr = &blocks[page]; ; b_pptr = &((*b_pptr)->next)) {
8884 if (*b_pptr == NULL || (*b_pptr)->start >= start) {
8885 block->next = *b_pptr;
8890 stat_inc(stat_blocks);
8894 static int new_recompile_block(u_int addr)
8896 u_int pagelimit = 0;
8897 u_int state_rflags = 0;
8900 assem_debug("NOTCOMPILED: addr = %x -> %p\n", addr, out);
8903 if (addr != hack_addr) {
8904 SysPrintf("game crash @%08x, ra=%08x\n", addr, psxRegs.GPR.n.ra);
8910 // this is just for speculation
8911 for (i = 1; i < 32; i++) {
8912 if ((psxRegs.GPR.r[i] & 0xffff0000) == 0x1f800000)
8913 state_rflags |= 1 << i;
8917 new_dynarec_did_compile=1;
8918 if (Config.HLE && start == 0x80001000) // hlecall
8920 // XXX: is this enough? Maybe check hleSoftCall?
8921 void *beginning = start_block();
8923 emit_movimm(start,0);
8924 emit_writeword(0,&pcaddr);
8925 emit_far_jump(new_dyna_leave);
8927 end_block(beginning);
8928 struct block_info *block = new_block_info(start, 4, NULL, NULL, beginning, 1);
8929 block->jump_in[0].vaddr = start;
8930 block->jump_in[0].addr = beginning;
8933 else if (f1_hack && hack_addr == 0) {
8934 void *beginning = start_block();
8935 emit_movimm(start, 0);
8936 emit_writeword(0, &hack_addr);
8937 emit_readword(&psxRegs.GPR.n.sp, 0);
8938 emit_readptr(&mem_rtab, 1);
8939 emit_shrimm(0, 12, 2);
8940 emit_readptr_dualindexedx_ptrlen(1, 2, 1);
8941 emit_addimm(0, 0x18, 0);
8942 emit_adds_ptr(1, 1, 1);
8943 emit_ldr_dualindexed(1, 0, 0);
8944 emit_writeword(0, &psxRegs.GPR.r[26]); // lw k0, 0x18(sp)
8945 emit_far_call(ndrc_get_addr_ht);
8946 emit_jmpreg(0); // jr k0
8948 end_block(beginning);
8950 struct block_info *block = new_block_info(start, 4, NULL, NULL, beginning, 1);
8951 block->jump_in[0].vaddr = start;
8952 block->jump_in[0].addr = beginning;
8953 SysPrintf("F1 hack to %08x\n", start);
8957 cycle_multiplier_active = Config.cycle_multiplier_override && Config.cycle_multiplier == CYCLE_MULT_DEFAULT
8958 ? Config.cycle_multiplier_override : Config.cycle_multiplier;
8960 source = get_source_start(start, &pagelimit);
8961 if (source == NULL) {
8962 if (addr != hack_addr) {
8963 SysPrintf("Compile at bogus memory address: %08x\n", addr);
8970 /* Pass 1: disassemble */
8971 /* Pass 2: register dependencies, branch targets */
8972 /* Pass 3: register allocation */
8973 /* Pass 4: branch dependencies */
8974 /* Pass 5: pre-alloc */
8975 /* Pass 6: optimize clean/dirty state */
8976 /* Pass 7: flag 32-bit registers */
8977 /* Pass 8: assembly */
8978 /* Pass 9: linker */
8979 /* Pass 10: garbage collection / free memory */
8981 /* Pass 1 disassembly */
8983 pass1_disassemble(pagelimit);
8985 int clear_hack_addr = apply_hacks();
8987 /* Pass 2 - Register dependencies and branch targets */
8989 pass2_unneeded_regs(0,slen-1,0);
8991 pass2a_unneeded_other();
8993 /* Pass 3 - Register allocation */
8995 pass3_register_alloc(addr);
8997 /* Pass 4 - Cull unused host registers */
8999 pass4_cull_unused_regs();
9001 /* Pass 5 - Pre-allocate registers */
9003 pass5a_preallocate1();
9004 pass5b_preallocate2();
9006 /* Pass 6 - Optimize clean/dirty state */
9007 pass6_clean_registers(0, slen-1, 1);
9010 for (i=slen-1;i>=0;i--)
9012 if(dops[i].itype==CJUMP||dops[i].itype==SJUMP)
9014 // Conditional branch
9015 if((source[i]>>16)!=0x1000&&i<slen-2) {
9016 // Mark this address as a branch target since it may be called
9017 // upon return from interrupt
9023 /* Pass 8 - Assembly */
9024 linkcount=0;stubcount=0;
9027 void *beginning=start_block();
9028 void *instr_addr0_override = NULL;
9031 if (start == 0x80030000) {
9032 // nasty hack for the fastbios thing
9033 // override block entry to this code
9034 instr_addr0_override = out;
9035 emit_movimm(start,0);
9036 // abuse io address var as a flag that we
9037 // have already returned here once
9038 emit_readword(&address,1);
9039 emit_writeword(0,&pcaddr);
9040 emit_writeword(0,&address);
9043 emit_jeq(out + 4*2);
9044 emit_far_jump(new_dyna_leave);
9046 emit_jne(new_dyna_leave);
9051 __builtin_prefetch(regs[i+1].regmap);
9052 check_regmap(regmap_pre[i]);
9053 check_regmap(regs[i].regmap_entry);
9054 check_regmap(regs[i].regmap);
9055 //if(ds) printf("ds: ");
9056 disassemble_inst(i);
9058 ds=0; // Skip delay slot
9059 if(dops[i].bt) assem_debug("OOPS - branch into delay slot\n");
9060 instr_addr[i] = NULL;
9062 speculate_register_values(i);
9063 #ifndef DESTRUCTIVE_WRITEBACK
9064 if (i < 2 || !dops[i-2].is_ujump)
9066 wb_valid(regmap_pre[i],regs[i].regmap_entry,dirty_pre,regs[i].wasdirty,unneeded_reg[i]);
9068 if((dops[i].itype==CJUMP||dops[i].itype==SJUMP)) {
9069 dirty_pre=branch_regs[i].dirty;
9071 dirty_pre=regs[i].dirty;
9075 if (i < 2 || !dops[i-2].is_ujump)
9077 wb_invalidate(regmap_pre[i],regs[i].regmap_entry,regs[i].wasdirty,unneeded_reg[i]);
9078 loop_preload(regmap_pre[i],regs[i].regmap_entry);
9080 // branch target entry point
9081 instr_addr[i] = out;
9082 assem_debug("<->\n");
9083 drc_dbg_emit_do_cmp(i, cinfo[i].ccadj);
9084 if (clear_hack_addr) {
9086 emit_writeword(0, &hack_addr);
9087 clear_hack_addr = 0;
9091 if(regs[i].regmap_entry[HOST_CCREG]==CCREG&®s[i].regmap[HOST_CCREG]!=CCREG)
9092 wb_register(CCREG,regs[i].regmap_entry,regs[i].wasdirty);
9093 load_regs(regs[i].regmap_entry,regs[i].regmap,dops[i].rs1,dops[i].rs2);
9094 address_generation(i,®s[i],regs[i].regmap_entry);
9095 load_consts(regmap_pre[i],regs[i].regmap,i);
9098 // Load the delay slot registers if necessary
9099 if(dops[i+1].rs1!=dops[i].rs1&&dops[i+1].rs1!=dops[i].rs2&&(dops[i+1].rs1!=dops[i].rt1||dops[i].rt1==0))
9100 load_regs(regs[i].regmap_entry,regs[i].regmap,dops[i+1].rs1,dops[i+1].rs1);
9101 if(dops[i+1].rs2!=dops[i+1].rs1&&dops[i+1].rs2!=dops[i].rs1&&dops[i+1].rs2!=dops[i].rs2&&(dops[i+1].rs2!=dops[i].rt1||dops[i].rt1==0))
9102 load_regs(regs[i].regmap_entry,regs[i].regmap,dops[i+1].rs2,dops[i+1].rs2);
9103 if (ram_offset && (dops[i+1].is_load || dops[i+1].is_store))
9104 load_reg(regs[i].regmap_entry,regs[i].regmap,ROREG);
9105 if (dops[i+1].is_store)
9106 load_reg(regs[i].regmap_entry,regs[i].regmap,INVCP);
9110 // Preload registers for following instruction
9111 if(dops[i+1].rs1!=dops[i].rs1&&dops[i+1].rs1!=dops[i].rs2)
9112 if(dops[i+1].rs1!=dops[i].rt1&&dops[i+1].rs1!=dops[i].rt2)
9113 load_regs(regs[i].regmap_entry,regs[i].regmap,dops[i+1].rs1,dops[i+1].rs1);
9114 if(dops[i+1].rs2!=dops[i+1].rs1&&dops[i+1].rs2!=dops[i].rs1&&dops[i+1].rs2!=dops[i].rs2)
9115 if(dops[i+1].rs2!=dops[i].rt1&&dops[i+1].rs2!=dops[i].rt2)
9116 load_regs(regs[i].regmap_entry,regs[i].regmap,dops[i+1].rs2,dops[i+1].rs2);
9118 // TODO: if(is_ooo(i)) address_generation(i+1);
9119 if (!dops[i].is_jump || dops[i].itype == CJUMP)
9120 load_reg(regs[i].regmap_entry,regs[i].regmap,CCREG);
9121 if (ram_offset && (dops[i].is_load || dops[i].is_store))
9122 load_reg(regs[i].regmap_entry,regs[i].regmap,ROREG);
9123 if (dops[i].is_store)
9124 load_reg(regs[i].regmap_entry,regs[i].regmap,INVCP);
9126 ds = assemble(i, ®s[i], cinfo[i].ccadj);
9128 if (dops[i].is_ujump)
9131 literal_pool_jumpover(256);
9136 if (slen > 0 && dops[slen-1].itype == INTCALL) {
9137 // no ending needed for this block since INTCALL never returns
9139 // If the block did not end with an unconditional branch,
9140 // add a jump to the next instruction.
9142 if (!dops[i-2].is_ujump) {
9143 assert(!dops[i-1].is_jump);
9145 if(dops[i-2].itype!=CJUMP&&dops[i-2].itype!=SJUMP) {
9146 store_regs_bt(regs[i-1].regmap,regs[i-1].dirty,start+i*4);
9147 if(regs[i-1].regmap[HOST_CCREG]!=CCREG)
9148 emit_loadreg(CCREG,HOST_CCREG);
9149 emit_addimm(HOST_CCREG, cinfo[i-1].ccadj + CLOCK_ADJUST(1), HOST_CCREG);
9153 store_regs_bt(branch_regs[i-2].regmap,branch_regs[i-2].dirty,start+i*4);
9154 assert(branch_regs[i-2].regmap[HOST_CCREG]==CCREG);
9156 add_to_linker(out,start+i*4,0);
9163 assert(!dops[i-1].is_jump);
9164 store_regs_bt(regs[i-1].regmap,regs[i-1].dirty,start+i*4);
9165 if(regs[i-1].regmap[HOST_CCREG]!=CCREG)
9166 emit_loadreg(CCREG,HOST_CCREG);
9167 emit_addimm(HOST_CCREG, cinfo[i-1].ccadj + CLOCK_ADJUST(1), HOST_CCREG);
9168 add_to_linker(out,start+i*4,0);
9173 for(i = 0; i < stubcount; i++)
9175 switch(stubs[i].type)
9182 do_readstub(i);break;
9186 do_writestub(i);break;
9190 do_invstub(i);break;
9192 do_unalignedwritestub(i);break;
9194 do_overflowstub(i); break;
9195 case ALIGNMENT_STUB:
9196 do_alignmentstub(i); break;
9202 if (instr_addr0_override)
9203 instr_addr[0] = instr_addr0_override;
9206 /* check for improper expiration */
9207 for (i = 0; i < ARRAY_SIZE(jumps); i++) {
9211 for (j = 0; j < jumps[i]->count; j++)
9212 assert(jumps[i]->e[j].stub < beginning || (u_char *)jumps[i]->e[j].stub > out);
9216 /* Pass 9 - Linker */
9217 for(i=0;i<linkcount;i++)
9219 assem_debug("%p -> %8x\n",link_addr[i].addr,link_addr[i].target);
9221 if (!link_addr[i].internal)
9224 void *addr = check_addr(link_addr[i].target);
9225 emit_extjump(link_addr[i].addr, link_addr[i].target);
9227 set_jump_target(link_addr[i].addr, addr);
9228 ndrc_add_jump_out(link_addr[i].target,stub);
9231 set_jump_target(link_addr[i].addr, stub);
9236 int target=(link_addr[i].target-start)>>2;
9237 assert(target>=0&&target<slen);
9238 assert(instr_addr[target]);
9239 //#ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
9240 //set_jump_target_fillslot(link_addr[i].addr,instr_addr[target],link_addr[i].ext>>1);
9242 set_jump_target(link_addr[i].addr, instr_addr[target]);
9247 u_int source_len = slen*4;
9248 if (dops[slen-1].itype == INTCALL && source_len > 4)
9249 // no need to treat the last instruction as compiled
9250 // as interpreter fully handles it
9253 if ((u_char *)copy + source_len > (u_char *)shadow + sizeof(shadow))
9256 // External Branch Targets (jump_in)
9257 int jump_in_count = 1;
9258 assert(instr_addr[0]);
9259 for (i = 1; i < slen; i++)
9261 if (dops[i].bt && instr_addr[i])
9265 struct block_info *block =
9266 new_block_info(start, slen * 4, source, copy, beginning, jump_in_count);
9267 block->reg_sv_flags = state_rflags;
9270 for (i = 0; i < slen; i++)
9272 if ((i == 0 || dops[i].bt) && instr_addr[i])
9274 assem_debug("%p (%d) <- %8x\n", instr_addr[i], i, start + i*4);
9275 u_int vaddr = start + i*4;
9281 entry = instr_addr[i];
9283 emit_jmp(instr_addr[i]);
9285 block->jump_in[jump_in_i].vaddr = vaddr;
9286 block->jump_in[jump_in_i].addr = entry;
9290 assert(jump_in_i == jump_in_count);
9291 hash_table_add(block->jump_in[0].vaddr, block->jump_in[0].addr);
9292 // Write out the literal pool if necessary
9294 #ifdef CORTEX_A8_BRANCH_PREDICTION_HACK
9296 if(((u_int)out)&7) emit_addnop(13);
9298 assert(out - (u_char *)beginning < MAX_OUTPUT_BLOCK_SIZE);
9299 //printf("shadow buffer: %p-%p\n",copy,(u_char *)copy+slen*4);
9300 memcpy(copy, source, source_len);
9303 end_block(beginning);
9305 // If we're within 256K of the end of the buffer,
9306 // start over from the beginning. (Is 256K enough?)
9307 if (out > ndrc->translation_cache + sizeof(ndrc->translation_cache) - MAX_OUTPUT_BLOCK_SIZE)
9308 out = ndrc->translation_cache;
9310 // Trap writes to any of the pages we compiled
9311 mark_invalid_code(start, slen*4, 0);
9313 /* Pass 10 - Free memory by expiring oldest blocks */
9315 pass10_expire_blocks();
9320 stat_inc(stat_bc_direct);
9324 // vim:shiftwidth=2:expandtab