X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=cpu%2Fsh2%2Fcompiler.c;h=43ca7b7c36adbff8f198e7b21bcea19f2558919f;hb=80599a42dbc06f3e86a09dae9dc98dccbb84b48c;hp=90f4ac79d5dc0237a1b5675f23a3674a7bf4564d;hpb=e898de13cdd5416507675f175958204c5e9f27e9;p=picodrive.git diff --git a/cpu/sh2/compiler.c b/cpu/sh2/compiler.c index 90f4ac7..43ca7b7 100644 --- a/cpu/sh2/compiler.c +++ b/cpu/sh2/compiler.c @@ -5,6 +5,7 @@ #include #include +#include "../../pico/pico_int.h" #include "sh2.h" #include "compiler.h" #include "../drc/cmn.h" @@ -14,20 +15,114 @@ #endif #if DRC_DEBUG +#define dbg(l,...) { \ + if ((l) & DRC_DEBUG) \ + elprintf(EL_STATUS, ##__VA_ARGS__); \ +} + #include "mame/sh2dasm.h" #include static int insns_compiled, hash_collisions, host_insn_count; +#define COUNT_OP \ + host_insn_count++ +#else // !DRC_DEBUG +#define COUNT_OP +#define dbg(...) #endif + #if (DRC_DEBUG & 2) -static void *tcache_dsm_ptr = tcache; +static u8 *tcache_dsm_ptrs[3]; static char sh2dasm_buff[64]; +#define do_host_disasm(tcid) \ + host_dasm(tcache_dsm_ptrs[tcid], tcache_ptr - tcache_dsm_ptrs[tcid]); \ + tcache_dsm_ptrs[tcid] = tcache_ptr +#else +#define do_host_disasm(x) #endif #define BLOCK_CYCLE_LIMIT 100 +#define MAX_BLOCK_SIZE (BLOCK_CYCLE_LIMIT * 6 * 6) + +// we have 3 translation cache buffers, split from one drc/cmn buffer. +// BIOS shares tcache with data array because it's only used for init +// and can be discarded early +static const int tcache_sizes[3] = { + DRC_TCACHE_SIZE * 6 / 8, // ROM, DRAM + DRC_TCACHE_SIZE / 8, // BIOS, data array in master sh2 + DRC_TCACHE_SIZE / 8, // ... slave +}; + +static u8 *tcache_bases[3]; +static u8 *tcache_ptrs[3]; + +// ptr for code emiters +static u8 *tcache_ptr; + +// host register tracking +enum { + HR_FREE, + HR_CACHED, // 'val' has sh2_reg_e + HR_CACHED_DIRTY, + HR_CONST, // 'val' has constant + HR_TEMP, // reg used for temp storage +}; + +typedef struct { + u8 reg; + u8 type; + u16 stamp; // kind of a timestamp + u32 val; +} temp_reg_t; + +// note: reg_temp[] must have at least the amount of +// registers used by handlers in worst case (currently 3?) +#ifdef ARM +#include "../drc/emit_arm.c" + +static const int reg_map_g2h[] = { + -1, -1, -1, -1, + -1, -1, -1, -1, + -1, -1, -1, -1, + -1, -1, -1, -1, + -1, -1, -1, -1, + -1, -1, -1, -1, +}; + +static temp_reg_t reg_temp[] = { + { 0, }, + { 1, }, + { 12, }, + { 14, }, + { 2, }, + { 3, }, +}; + +#else +#include "../drc/emit_x86.c" -static void *tcache_ptr; +static const int reg_map_g2h[] = { + -1, -1, -1, -1, + -1, -1, -1, -1, + -1, -1, -1, -1, + -1, -1, -1, -1, + -1, -1, -1, -1, + -1, -1, -1, -1, +}; + +// ax, cx, dx are usually temporaries +static temp_reg_t reg_temp[] = { + { xAX, }, + { xCX, }, + { xDX, }, +}; -#include "../drc/emit_x86.c" +#endif + +#define T 0x00000001 +#define S 0x00000002 +#define I 0x000000f0 +#define Q 0x00000100 +#define M 0x00000200 typedef enum { SHR_R0 = 0, SHR_R15 = 15, @@ -37,23 +132,52 @@ typedef enum { typedef struct block_desc_ { u32 addr; // SH2 PC address + u32 end_addr; // TODO rm? void *tcache_ptr; // translated block for above PC - struct block_desc_ *next; // next block with the same PC hash + struct block_desc_ *next; // next block with the same PC hash +#if (DRC_DEBUG & 1) + int refcount; +#endif } block_desc; -#define MAX_BLOCK_COUNT (4*1024) -static block_desc *block_table; -static int block_count; +static const int block_max_counts[3] = { + 4*1024, + 256, + 256, +}; +static block_desc *block_tables[3]; +static int block_counts[3]; +// ROM hash table #define MAX_HASH_ENTRIES 1024 #define HASH_MASK (MAX_HASH_ENTRIES - 1) +static void **hash_table; extern void sh2_drc_entry(SH2 *sh2, void *block); extern void sh2_drc_exit(void); // tmp -extern void __attribute__((regparm(2))) sh2_do_op(SH2 *sh2, int opcode); -static void __attribute__((regparm(1))) sh2_test_irq(SH2 *sh2); +extern void REGPARM(2) sh2_do_op(SH2 *sh2, int opcode); +static void REGPARM(1) sh2_test_irq(SH2 *sh2); + +static void flush_tcache(int tcid) +{ + dbg(1, "tcache #%d flush! (%d/%d, bds %d/%d)", tcid, + tcache_ptrs[tcid] - tcache_bases[tcid], tcache_sizes[tcid], + block_counts[tcid], block_max_counts[tcid]); + + block_counts[tcid] = 0; + tcache_ptrs[tcid] = tcache_bases[tcid]; + if (tcid == 0) { // ROM, RAM + memset(hash_table, 0, sizeof(hash_table[0]) * MAX_HASH_ENTRIES); + memset(Pico32xMem->drcblk_ram, 0, sizeof(Pico32xMem->drcblk_ram)); + } + else + memset(Pico32xMem->drcblk_da[tcid - 1], 0, sizeof(Pico32xMem->drcblk_da[0])); +#if (DRC_DEBUG & 2) + tcache_dsm_ptrs[tcid] = tcache_bases[tcid]; +#endif +} static void *dr_find_block(block_desc *tab, u32 addr) { @@ -68,20 +192,19 @@ static void *dr_find_block(block_desc *tab, u32 addr) return NULL; } -static block_desc *dr_add_block(u32 addr, void *tcache_ptr) +static block_desc *dr_add_block(u32 addr, int tcache_id, int *blk_id) { + int *bcount = &block_counts[tcache_id]; block_desc *bd; - if (block_count == MAX_BLOCK_COUNT) { - // FIXME: flush cache instead - printf("block descriptor overflow\n"); - exit(1); - } + if (*bcount >= block_max_counts[tcache_id]) + return NULL; - bd = &block_table[block_count]; + bd = &block_tables[tcache_id][*bcount]; bd->addr = addr; bd->tcache_ptr = tcache_ptr; - block_count++; + *blk_id = *bcount; + (*bcount)++; return bd; } @@ -91,65 +214,375 @@ static block_desc *dr_add_block(u32 addr, void *tcache_ptr) // --------------------------------------------------------------- -static void emit_move_r_imm32(sh2_reg_e dst, u32 imm) +// register chache +static u16 rcache_counter; + +static temp_reg_t *rcache_evict(void) { - int host_dst = reg_map_g2h[dst]; - int tmp = 0; - - if (host_dst != -1) - tmp = host_dst; - emith_move_r_imm(tmp, imm); - if (host_dst == -1) - emith_ctx_write(tmp, dst * 4); + // evict reg with oldest stamp + int i, oldest = -1; + u16 min_stamp = (u16)-1; + + for (i = 0; i < ARRAY_SIZE(reg_temp); i++) { + if (reg_temp[i].type == HR_CACHED || reg_temp[i].type == HR_CACHED_DIRTY) + if (reg_temp[i].stamp <= min_stamp) { + min_stamp = reg_temp[i].stamp; + oldest = i; + } + } + + if (oldest == -1) { + printf("no registers to evict, aborting\n"); + exit(1); + } + + i = oldest; + if (reg_temp[i].type == HR_CACHED_DIRTY) { + // writeback + emith_ctx_write(reg_temp[i].reg, reg_temp[i].val * 4); + } + + return ®_temp[i]; } -static void emit_move_r_r(sh2_reg_e dst, sh2_reg_e src) +typedef enum { + RC_GR_READ, + RC_GR_WRITE, + RC_GR_RMW, +} rc_gr_mode; + +// note: must not be called when doing conditional code +static int rcache_get_reg(sh2_reg_e r, rc_gr_mode mode) { - int host_dst = reg_map_g2h[dst], host_src = reg_map_g2h[src]; - int tmp = 0; + temp_reg_t *tr; + int i; + + // maybe already statically mapped? + i = reg_map_g2h[r]; + if (i != -1) + return i; + + rcache_counter++; + + // maybe already cached? + for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { + if ((reg_temp[i].type == HR_CACHED || reg_temp[i].type == HR_CACHED_DIRTY) && + reg_temp[i].val == r) + { + reg_temp[i].stamp = rcache_counter; + if (mode != RC_GR_READ) + reg_temp[i].type = HR_CACHED_DIRTY; + return reg_temp[i].reg; + } + } + + // use any free reg + for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { + if (reg_temp[i].type == HR_FREE || reg_temp[i].type == HR_CONST) { + tr = ®_temp[i]; + goto do_alloc; + } + } + + tr = rcache_evict(); + +do_alloc: + if (mode != RC_GR_WRITE) + emith_ctx_read(tr->reg, r * 4); + + tr->type = mode != RC_GR_READ ? HR_CACHED_DIRTY : HR_CACHED; + tr->val = r; + tr->stamp = rcache_counter; + return tr->reg; +} - if (host_dst != -1 && host_src != -1) { - emith_move_r_r(host_dst, host_src); +static int rcache_get_tmp(void) +{ + temp_reg_t *tr; + int i; + + for (i = 0; i < ARRAY_SIZE(reg_temp); i++) + if (reg_temp[i].type == HR_FREE || reg_temp[i].type == HR_CONST) { + tr = ®_temp[i]; + goto do_alloc; + } + + tr = rcache_evict(); + +do_alloc: + tr->type = HR_TEMP; + return tr->reg; +} + +static int rcache_get_arg_id(int arg) +{ + int i, r = 0; + host_arg2reg(r, arg); + + for (i = 0; i < ARRAY_SIZE(reg_temp); i++) + if (reg_temp[i].reg == r) + break; + + if (i == ARRAY_SIZE(reg_temp)) + // let's just say it's untracked arg reg + return r; + + if (reg_temp[i].type == HR_CACHED_DIRTY) { + // writeback + emith_ctx_write(reg_temp[i].reg, reg_temp[i].val * 4); + } + else if (reg_temp[i].type == HR_TEMP) { + printf("arg %d reg %d already used, aborting\n", arg, r); + exit(1); + } + + return i; +} + +// get a reg to be used as function arg +// it's assumed that regs are cleaned before call +static int rcache_get_tmp_arg(int arg) +{ + int id = rcache_get_arg_id(arg); + reg_temp[id].type = HR_TEMP; + + return reg_temp[id].reg; +} + +// same but caches reg. RC_GR_READ only. +static int rcache_get_reg_arg(int arg, sh2_reg_e r) +{ + int i, srcr, dstr, dstid; + + dstid = rcache_get_arg_id(arg); + dstr = reg_temp[dstid].reg; + + // maybe already statically mapped? + srcr = reg_map_g2h[r]; + if (srcr != -1) + goto do_cache; + + // maybe already cached? + for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { + if ((reg_temp[i].type == HR_CACHED || reg_temp[i].type == HR_CACHED_DIRTY) && + reg_temp[i].val == r) + { + srcr = reg_temp[i].reg; + goto do_cache; + } + } + + // must read + srcr = dstr; + emith_ctx_read(srcr, r * 4); + +do_cache: + if (srcr != dstr) + emith_move_r_r(dstr, srcr); + + reg_temp[dstid].stamp = ++rcache_counter; + reg_temp[dstid].type = HR_CACHED; + reg_temp[dstid].val = r; + return dstr; +} + +static void rcache_free_tmp(int hr) +{ + int i; + for (i = 0; i < ARRAY_SIZE(reg_temp); i++) + if (reg_temp[i].reg == hr) + break; + + if (i == ARRAY_SIZE(reg_temp) || reg_temp[i].type != HR_TEMP) { + printf("rcache_free_tmp fail: #%i hr %d, type %d\n", i, hr, reg_temp[i].type); return; } - if (host_src != -1) - tmp = host_src; - if (host_dst != -1) - tmp = host_dst; + reg_temp[i].type = HR_FREE; +} - if (host_src == -1) - emith_ctx_read(tmp, src * 4); - if (host_dst == -1) - emith_ctx_write(tmp, dst * 4); +static void rcache_clean(void) +{ + int i; + for (i = 0; i < ARRAY_SIZE(reg_temp); i++) + if (reg_temp[i].type == HR_CACHED_DIRTY) { + // writeback + emith_ctx_write(reg_temp[i].reg, reg_temp[i].val * 4); + reg_temp[i].type = HR_CACHED; + } } -static void emit_braf(sh2_reg_e reg, u32 pc) +static void rcache_invalidate(void) { - int host_reg = reg_map_g2h[reg]; - if (host_reg == -1) { - emith_ctx_read(0, reg * 4); - } else - emith_move_r_r(0, host_reg); - emith_add_r_imm(0, pc); - - emith_ctx_write(0, SHR_PPC * 4); + int i; + for (i = 0; i < ARRAY_SIZE(reg_temp); i++) + reg_temp[i].type = HR_FREE; + rcache_counter = 0; } -/* -static int sh2_translate_op4(int op) +static void rcache_flush(void) { - switch (op & 0x000f) - { - case 0x0b: - default: - emith_pass_arg(2, sh2, op); - emith_call(sh2_do_op); + rcache_clean(); + rcache_invalidate(); +} + +// --------------------------------------------------------------- + +static void emit_move_r_imm32(sh2_reg_e dst, u32 imm) +{ + int hr = rcache_get_reg(dst, RC_GR_WRITE); + emith_move_r_imm(hr, imm); +} + +static void emit_move_r_r(sh2_reg_e dst, sh2_reg_e src) +{ + int hr_d = rcache_get_reg(dst, RC_GR_WRITE); + int hr_s = rcache_get_reg(src, RC_GR_READ); + + emith_move_r_r(hr_d, hr_s); +} + +// arguments must be ready +// reg cache must be clean before call +static int emit_memhandler_read(int size) +{ + int ctxr; + host_arg2reg(ctxr, 1); + emith_move_r_r(ctxr, CONTEXT_REG); + switch (size) { + case 0: // 8 + emith_call(p32x_sh2_read8); + break; + case 1: // 16 + emith_call(p32x_sh2_read16); + break; + case 2: // 32 + emith_call(p32x_sh2_read32); break; } + rcache_invalidate(); + // assuming arg0 and retval reg matches + return rcache_get_tmp_arg(0); +} - return 0; +static void emit_memhandler_write(int size) +{ + int ctxr; + host_arg2reg(ctxr, 2); + emith_move_r_r(ctxr, CONTEXT_REG); + switch (size) { + case 0: // 8 + emith_call(p32x_sh2_write8); + break; + case 1: // 16 + emith_call(p32x_sh2_write16); + break; + case 2: // 32 + emith_call(p32x_sh2_write32); + break; + } + rcache_invalidate(); } + +/* +MOV #imm,Rn 1110nnnniiiiiiii +MOV.W @(disp,PC),Rn 1001nnnndddddddd +MOV.L @(disp,PC),Rn 1101nnnndddddddd +MOV Rm,Rn 0110nnnnmmmm0011 +MOV.B @Rm,Rn 0110nnnnmmmm0000 +MOV.W @Rm,Rn 0110nnnnmmmm0001 +MOV.L @Rm,Rn 0110nnnnmmmm0010 +MOV.B @Rm+,Rn 0110nnnnmmmm0100 +MOV.W @Rm+,Rn 0110nnnnmmmm0101 +MOV.L @Rm+,Rn 0110nnnnmmmm0110 +MOV.B R0,@(disp,Rn) 10000000nnnndddd +MOV.W R0,@(disp,Rn) 10000001nnnndddd +MOV.B @(disp,Rm),R0 10000100mmmmdddd +MOV.W @(disp,Rm),R0 10000101mmmmdddd +MOV.L @(disp,Rm),Rn 0101nnnnmmmmdddd +MOV.B R0,@(disp,GBR) 11000000dddddddd +MOV.W R0,@(disp,GBR) 11000001dddddddd +MOV.L R0,@(disp,GBR) 11000010dddddddd +MOV.B @(disp,GBR),R0 11000100dddddddd +MOV.W @(disp,GBR),R0 11000101dddddddd +MOV.L @(disp,GBR),R0 11000110dddddddd +MOVA @(disp,PC),R0 11000111dddddddd +SWAP.B Rm,Rn 0110nnnnmmmm1000 +SWAP.W Rm,Rn 0110nnnnmmmm1001 +XTRCT Rm,Rn 0010nnnnmmmm1101 +ADD Rm,Rn 0011nnnnmmmm1100 +ADD #imm,Rn 0111nnnniiiiiiii +ADDC Rm,Rn 0011nnnnmmmm1110 +ADDV Rm,Rn 0011nnnnmmmm1111 +CMP/EQ #imm,R0 10001000iiiiiiii +CMP/EQ Rm,Rn 0011nnnnmmmm0000 +CMP/HS Rm,Rn 0011nnnnmmmm0010 +CMP/GE Rm,Rn 0011nnnnmmmm0011 +CMP/HI Rm,Rn 0011nnnnmmmm0110 +CMP/GT Rm,Rn 0011nnnnmmmm0111 +CMP/PZ Rn 0100nnnn00010001 +CMP/PL Rn 0100nnnn00010101 +CMP/ST Rm,Rn 0010nnnnmmmm1100 +DIV1 Rm,Rn 0011nnnnmmmm0100 +DMULS. Rm,Rn 0011nnnnmmmm1101 +DMULU.L Rm,Rn 0011nnnnmmmm0101 +EXTS.B Rm,Rn 0110nnnnmmmm1110 +EXTS.W Rm,Rn 0110nnnnmmmm1111 +EXTU.B Rm,Rn 0110nnnnmmmm1100 +EXTU.W Rm,Rn 0110nnnnmmmm1101 +MAC @Rm+,@Rn+ 0100nnnnmmmm1111 +MULS.W Rm,Rn 0010nnnnmmmm1111 +MULU.W Rm,Rn 0010nnnnmmmm1110 +NEG Rm,Rn 0110nnnnmmmm1011 +NEGC Rm,Rn 0110nnnnmmmm1010 +SUB Rm,Rn 0011nnnnmmmm1000 +SUBC Rm,Rn 0011nnnnmmmm1010 +SUBV Rm,Rn 0011nnnnmmmm1011 +AND Rm,Rn 0010nnnnmmmm1001 +AND #imm,R0 11001001iiiiiiii +AND.B #imm,@(R0,GBR) 11001101iiiiiiii +NOT Rm,Rn 0110nnnnmmmm0111 +OR Rm,Rn 0010nnnnmmmm1011 +OR #imm,R0 11001011iiiiiiii +OR.B #imm,@(R0,GBR) 11001111iiiiiiii +TAS.B @Rn 0100nnnn00011011 +TST Rm,Rn 0010nnnnmmmm1000 +TST #imm,R0 11001000iiiiiiii +TST.B #imm,@(R0,GBR) 11001100iiiiiiii +XOR Rm,Rn 0010nnnnmmmm1010 +XOR #imm,R0 11001010iiiiiiii +XOR.B #imm,@(R0,GBR) 11001110iiiiiiii +ROTL Rn 0100nnnn00000100 +ROTR Rn 0100nnnn00000101 +ROTCL Rn 0100nnnn00100100 +ROTCR Rn 0100nnnn00100101 +SHAL Rn 0100nnnn00100000 +SHAR Rn 0100nnnn00100001 +SHLL Rn 0100nnnn00000000 +SHLR Rn 0100nnnn00000001 +SHLL2 Rn 0100nnnn00001000 +SHLR2 Rn 0100nnnn00001001 +SHLL8 Rn 0100nnnn00011000 +SHLR8 Rn 0100nnnn00011001 +SHLL16 Rn 0100nnnn00101000 +SHLR16 Rn 0100nnnn00101001 +LDC Rm,GBR 0100mmmm00011110 +LDC Rm,VBR 0100mmmm00101110 +LDC.L @Rm+,GBR 0100mmmm00010111 +LDC.L @Rm+,VBR 0100mmmm00100111 +LDS Rm,MACH 0100mmmm00001010 +LDS Rm,MACL 0100mmmm00011010 +LDS Rm,PR 0100mmmm00101010 +LDS.L @Rm+,MACH 0100mmmm00000110 +LDS.L @Rm+,MACL 0100mmmm00010110 +LDS.L @Rm+,PR 0100mmmm00100110 +STC.L SR,@–Rn 0100nnnn00000011 +STC.L GBR,@–Rn 0100nnnn00010011 +STC.L VBR,@–Rn 0100nnnn00100011 +STS.L MACH,@–Rn 0100nnnn00000010 +STS.L MACL,@–Rn 0100nnnn00010010 +STS.L PR,@–Rn 0100nnnn00100010 +TRAPA #imm 11000011iiiiiiii */ #define DELAYED_OP \ @@ -160,24 +593,60 @@ static int sh2_translate_op4(int op) goto default_; \ } +#define GET_Fx() \ + ((op >> 4) & 0x0f) + +#define GET_Rm GET_Fx + +#define GET_Rn() \ + ((op >> 8) & 0x0f) + +#define CHECK_FX_GT_3() \ + if (GET_Fx() > 3) \ + goto default_ + static void *sh2_translate(SH2 *sh2, block_desc *other_block) { - void *block_entry = tcache_ptr; + void *block_entry; block_desc *this_block; unsigned int pc = sh2->pc; int op, delayed_op = 0, test_irq = 0; + int tcache_id = 0, blkid = 0; int cycles = 0; - u32 tmp, tmp2; + u32 tmp, tmp2, tmp3; - this_block = dr_add_block(pc, block_entry); - if (other_block != NULL) - this_block->next = other_block; + // validate PC + tmp = sh2->pc >> 29; + if ((tmp != 0 && tmp != 1 && tmp != 6) || sh2->pc == 0) { + printf("invalid PC, aborting: %08x\n", sh2->pc); + // FIXME: be less destructive + exit(1); + } + + if ((sh2->pc & 0xe0000000) == 0xc0000000 || (sh2->pc & ~0xfff) == 0) { + // data_array, BIOS have separate tcache (shared) + tcache_id = 1 + sh2->is_slave; + } - HASH_FUNC(sh2->pc_hashtab, pc) = this_block; + tcache_ptr = tcache_ptrs[tcache_id]; + this_block = dr_add_block(pc, tcache_id, &blkid); + tmp = tcache_ptr - tcache_bases[tcache_id]; + if (tmp > tcache_sizes[tcache_id] - MAX_BLOCK_SIZE || this_block == NULL) { + flush_tcache(tcache_id); + tcache_ptr = tcache_ptrs[tcache_id]; + other_block = NULL; // also gone too due to flush + this_block = dr_add_block(pc, tcache_id, &blkid); + } + + this_block->next = other_block; + if ((sh2->pc & 0xc6000000) == 0x02000000) // ROM + HASH_FUNC(hash_table, pc) = this_block; + + block_entry = tcache_ptr; #if (DRC_DEBUG & 1) - printf("== %csh2 block #%d %08x -> %p\n", sh2->is_slave ? 's' : 'm', - block_count, pc, block_entry); + printf("== %csh2 block #%d,%d %08x -> %p\n", sh2->is_slave ? 's' : 'm', + tcache_id, block_counts[tcache_id], pc, block_entry); if (other_block != NULL) { printf(" hash collision with %08x\n", other_block->addr); hash_collisions++; @@ -189,7 +658,7 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) if (delayed_op > 0) delayed_op--; - op = p32x_sh2_read16(pc, sh2->is_slave); + op = p32x_sh2_read16(pc, sh2); #if (DRC_DEBUG & 3) insns_compiled++; @@ -205,7 +674,27 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) switch ((op >> 12) & 0x0f) { case 0x00: - switch (op & 0x0f) { + switch (op & 0x0f) + { + case 0x02: + tmp = rcache_get_reg(GET_Rn(), RC_GR_WRITE); + switch (GET_Fx()) + { + case 0: // STC SR,Rn 0000nnnn00000010 + tmp2 = SHR_SR; + break; + case 1: // STC GBR,Rn 0000nnnn00010010 + tmp2 = SHR_GBR; + break; + case 2: // STC VBR,Rn 0000nnnn00100010 + tmp2 = SHR_VBR; + break; + default: + goto default_; + } + tmp2 = rcache_get_reg(tmp2, RC_GR_READ); + emith_move_r_r(tmp, tmp2); + goto end_op; case 0x03: CHECK_UNHANDLED_BITS(0xd0); // BRAF Rm 0000mmmm00100011 @@ -213,36 +702,211 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) DELAYED_OP; if (!(op & 0x20)) emit_move_r_imm32(SHR_PR, pc + 2); - emit_braf((op >> 8) & 0x0f, pc + 2); + tmp = rcache_get_reg(SHR_PPC, RC_GR_WRITE); + tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); + emith_move_r_r(tmp, tmp2); + emith_add_r_imm(tmp, pc + 2); + cycles++; + goto end_op; + case 0x04: // MOV.B Rm,@(R0,Rn) 0000nnnnmmmm0100 + case 0x05: // MOV.W Rm,@(R0,Rn) 0000nnnnmmmm0101 + case 0x06: // MOV.L Rm,@(R0,Rn) 0000nnnnmmmm0110 + rcache_clean(); + tmp = rcache_get_reg_arg(0, SHR_R0); + tmp2 = rcache_get_reg_arg(1, GET_Rm()); + tmp3 = rcache_get_reg(GET_Rn(), RC_GR_READ); + emith_add_r_r(tmp, tmp3); + emit_memhandler_write(op & 3); + goto end_op; + case 0x07: + // MUL.L Rm,Rn 0000nnnnmmmm0111 + tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); + tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); + tmp3 = rcache_get_reg(SHR_MACL, RC_GR_WRITE); + emith_mul(tmp3, tmp2, tmp); cycles++; goto end_op; + case 0x08: + CHECK_UNHANDLED_BITS(0xf00); + switch (GET_Fx()) + { + case 0: // CLRT 0000000000001000 + tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(tmp, T); + break; + case 1: // SETT 0000000000011000 + tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_or_r_imm(tmp, T); + break; + case 2: // CLRMAC 0000000000101000 + tmp = rcache_get_reg(SHR_MACL, RC_GR_WRITE); + emith_move_r_imm(tmp, 0); + tmp = rcache_get_reg(SHR_MACH, RC_GR_WRITE); + emith_move_r_imm(tmp, 0); + break; + default: + goto default_; + } + goto end_op; case 0x09: - CHECK_UNHANDLED_BITS(0xf0); - // NOP 0000000000001001 + switch (GET_Fx()) + { + case 0: // NOP 0000000000001001 + CHECK_UNHANDLED_BITS(0xf00); + break; + case 1: // DIV0U 0000000000011001 + CHECK_UNHANDLED_BITS(0xf00); + tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(tmp, M|Q|T); + break; + case 2: // MOVT Rn 0000nnnn00101001 + tmp = rcache_get_reg(SHR_SR, RC_GR_READ); + tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); + emith_clear_msb(tmp2, tmp, 31); + break; + default: + goto default_; + } + goto end_op; + case 0x0a: + tmp = rcache_get_reg(GET_Rn(), RC_GR_WRITE); + switch (GET_Fx()) + { + case 0: // STS MACH,Rn 0000nnnn00001010 + tmp2 = rcache_get_reg(SHR_MACH, RC_GR_READ); + break; + case 1: // STS MACL,Rn 0000nnnn00011010 + tmp2 = rcache_get_reg(SHR_MACL, RC_GR_READ); + break; + case 2: // STS PR,Rn 0000nnnn00101010 + tmp2 = rcache_get_reg(SHR_PR, RC_GR_READ); + break; + default: + goto default_; + } + emith_move_r_r(tmp, tmp2); goto end_op; case 0x0b: - CHECK_UNHANDLED_BITS(0xd0); - DELAYED_OP; - if (!(op & 0x20)) { - // RTS 0000000000001011 + CHECK_UNHANDLED_BITS(0xf00); + switch (GET_Fx()) + { + case 0: // RTS 0000000000001011 + DELAYED_OP; emit_move_r_r(SHR_PPC, SHR_PR); cycles++; - } else { - // RTE 0000000000101011 + break; + case 1: // SLEEP 0000000000011011 + emit_move_r_imm32(SHR_PC, pc - 2); + tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_clear_msb(tmp, tmp, 20); // clear cycles + test_irq = 1; + cycles = 1; + break; + case 2: // RTE 0000000000101011 //emit_move_r_r(SHR_PC, SHR_PR); emit_move_r_imm32(SHR_PC, pc - 2); - emith_pass_arg(2, sh2, op); + rcache_flush(); + emith_pass_arg_r(0, CONTEXT_REG); + emith_pass_arg_imm(1, op); emith_call(sh2_do_op); emit_move_r_r(SHR_PPC, SHR_PC); test_irq = 1; cycles += 3; + break; + default: + goto default_; } goto end_op; + case 0x0c: // MOV.B @(R0,Rm),Rn 0000nnnnmmmm1100 + case 0x0d: // MOV.W @(R0,Rm),Rn 0000nnnnmmmm1101 + case 0x0e: // MOV.L @(R0,Rm),Rn 0000nnnnmmmm1110 + rcache_clean(); + tmp = rcache_get_reg_arg(0, SHR_R0); + tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); + emith_add_r_r(tmp, tmp2); + tmp = emit_memhandler_read(op & 3); + tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); + rcache_free_tmp(tmp); + if ((op & 3) != 2) { + emith_sext(tmp2, tmp, (op & 1) ? 16 : 8); + } else + emith_move_r_r(tmp2, tmp); + goto end_op; + case 0x0f: // MAC.L @Rm+,@Rn+ 0000nnnnmmmm1111 + // TODO + break; + } + goto default_; + + case 0x01: + // MOV.L Rm,@(disp,Rn) 0001nnnnmmmmdddd + rcache_clean(); + tmp = rcache_get_reg_arg(0, GET_Rn()); + tmp2 = rcache_get_reg_arg(1, GET_Rm()); + emith_add_r_imm(tmp, (op & 0x0f) * 4); + emit_memhandler_write(2); + goto end_op; + + case 0x02: + switch (op & 0x0f) + { + case 0x00: // MOV.B Rm,@Rn 0010nnnnmmmm0000 + case 0x01: // MOV.W Rm,@Rn 0010nnnnmmmm0001 + case 0x02: // MOV.L Rm,@Rn 0010nnnnmmmm0010 + rcache_clean(); + rcache_get_reg_arg(0, GET_Rn()); + rcache_get_reg_arg(1, GET_Rm()); + emit_memhandler_write(op & 3); + goto end_op; + case 0x04: // MOV.B Rm,@–Rn 0010nnnnmmmm0100 + case 0x05: // MOV.W Rm,@–Rn 0010nnnnmmmm0101 + case 0x06: // MOV.L Rm,@–Rn 0010nnnnmmmm0110 + tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); + emith_sub_r_imm(tmp, (1 << (op & 3))); + rcache_clean(); + rcache_get_reg_arg(0, GET_Rn()); + rcache_get_reg_arg(1, GET_Rm()); + emit_memhandler_write(op & 3); + goto end_op; + case 0x07: // DIV0S Rm,Rn 0010nnnnmmmm0111 + tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); + tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); + emith_bic_r_imm(tmp, M|Q|T); + emith_tst_r_imm(tmp2, (1<<31)); + EMITH_SJMP_START(DCOND_EQ); + emith_or_r_imm_c(DCOND_NE, tmp, Q); + EMITH_SJMP_END(DCOND_EQ); + emith_tst_r_imm(tmp3, (1<<31)); + EMITH_SJMP_START(DCOND_EQ); + emith_or_r_imm_c(DCOND_NE, tmp, M); + EMITH_SJMP_END(DCOND_EQ); + emith_teq_r_r(tmp2, tmp3); + EMITH_SJMP_START(DCOND_PL); + emith_or_r_imm_c(DCOND_MI, tmp, T); + EMITH_SJMP_END(DCOND_PL); + goto end_op; } goto default_; case 0x04: switch (op & 0x0f) { + case 0x00: + if ((op & 0xf0) != 0x10) + goto default_; + // DT Rn 0100nnnn00010000 + if (p32x_sh2_read16(pc, sh2) == 0x8bfd) { // BF #-2 + emith_sh2_dtbf_loop(); + goto end_op; + } + tmp = rcache_get_reg((op >> 8) & 0x0f, RC_GR_RMW); + tmp2 = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_bic_r_imm(tmp2, T); + emith_subf_r_imm(tmp, 1); + EMITH_SJMP_START(DCOND_NE); + emith_or_r_imm_c(DCOND_EQ, tmp2, T); + EMITH_SJMP_END(DCOND_NE); + goto end_op; case 0x07: if ((op & 0xf0) != 0) goto default_; @@ -281,17 +945,27 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) // BT label 10001001dddddddd case 0x0900: // BF label 10001011dddddddd - case 0x0b00: - tmp = ((signed int)(op << 24) >> 23); - tmp2 = delayed_op ? SHR_PPC : SHR_PC; - emit_move_r_imm32(tmp2, pc + (delayed_op ? 2 : 0)); - emith_test_t(); - EMIT_CONDITIONAL(emit_move_r_imm32(tmp2, pc + tmp + 2), (op & 0x0200) ? 1 : 0); + case 0x0b00: { + // jmp_cond ~ cond when guest doesn't jump + int jmp_cond = (op & 0x0200) ? DCOND_NE : DCOND_EQ; + int insn_cond = (op & 0x0200) ? DCOND_EQ : DCOND_NE; + signed int offs = ((signed int)(op << 24) >> 23); + tmp = rcache_get_reg(delayed_op ? SHR_PPC : SHR_PC, RC_GR_WRITE); + emith_move_r_imm(tmp, pc + (delayed_op ? 2 : 0)); + emith_sh2_test_t(); + EMITH_SJMP_START(jmp_cond); + if (!delayed_op) + offs += 2; + if (offs < 0) { + emith_sub_r_imm_c(insn_cond, tmp, -offs); + } else + emith_add_r_imm_c(insn_cond, tmp, offs); + EMITH_SJMP_END(jmp_cond); cycles += 2; if (!delayed_op) goto end_block; goto end_op; - } + }} goto default_; case 0x0a: @@ -312,86 +986,180 @@ static void *sh2_translate(SH2 *sh2, block_desc *other_block) default: default_: emit_move_r_imm32(SHR_PC, pc - 2); - emith_pass_arg(2, sh2, op); + rcache_flush(); + emith_pass_arg_r(0, CONTEXT_REG); + emith_pass_arg_imm(1, op); emith_call(sh2_do_op); break; } end_op: - if (delayed_op == 1) { + if (delayed_op == 1) emit_move_r_r(SHR_PC, SHR_PPC); - break; - } + if (test_irq && delayed_op != 2) { - emith_pass_arg(1, sh2); + rcache_flush(); + emith_pass_arg_r(0, CONTEXT_REG); emith_call(sh2_test_irq); break; } + if (delayed_op == 1) + break; -#if (DRC_DEBUG & 2) - host_dasm(tcache_dsm_ptr, (char *)tcache_ptr - (char *)tcache_dsm_ptr); - tcache_dsm_ptr = tcache_ptr; -#endif + do_host_disasm(tcache_id); } end_block: - if ((char *)tcache_ptr - (char *)tcache > DRC_TCACHE_SIZE) { - printf("tcache overflow!\n"); - fflush(stdout); - exit(1); + this_block->end_addr = pc; + + // mark memory blocks as containing compiled code + if ((sh2->pc & 0xe0000000) == 0xc0000000 || (sh2->pc & ~0xfff) == 0) { + // data array, BIOS + u16 *drcblk = Pico32xMem->drcblk_da[sh2->is_slave]; + tmp = (this_block->addr & 0xfff) >> SH2_DRCBLK_DA_SHIFT; + tmp2 = (this_block->end_addr & 0xfff) >> SH2_DRCBLK_DA_SHIFT; + Pico32xMem->drcblk_da[sh2->is_slave][tmp] = (blkid << 1) | 1; + for (++tmp; tmp < tmp2; tmp++) { + if (drcblk[tmp]) + break; // dont overwrite overlay block + drcblk[tmp] = blkid << 1; + } + } + else if ((this_block->addr & 0xc7fc0000) == 0x06000000) { // DRAM + tmp = (this_block->addr & 0x3ffff) >> SH2_DRCBLK_RAM_SHIFT; + tmp2 = (this_block->end_addr & 0x3ffff) >> SH2_DRCBLK_RAM_SHIFT; + Pico32xMem->drcblk_ram[tmp] = (blkid << 1) | 1; + for (++tmp; tmp < tmp2; tmp++) { + if (Pico32xMem->drcblk_ram[tmp]) + break; + Pico32xMem->drcblk_ram[tmp] = blkid << 1; + } } - if (reg_map_g2h[SHR_SR] == -1) { - emith_ctx_sub(cycles << 12, SHR_SR * 4); - } else - emith_sub_r_imm(reg_map_g2h[SHR_SR], cycles << 12); + tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); + emith_sub_r_imm(tmp, cycles << 12); + rcache_flush(); emith_jump(sh2_drc_exit); + tcache_ptrs[tcache_id] = tcache_ptr; -#if (DRC_DEBUG & 2) - host_dasm(tcache_dsm_ptr, (char *)tcache_ptr - (char *)tcache_dsm_ptr); - tcache_dsm_ptr = tcache_ptr; +#ifdef ARM + cache_flush_d_inval_i(block_entry, tcache_ptr); #endif -#if (DRC_DEBUG & 1) - printf(" tcache %d/%d, hash collisions %d/%d, insns %d -> %d %.3f\n", - (char *)tcache_ptr - (char *)tcache, DRC_TCACHE_SIZE, - hash_collisions, block_count, insns_compiled, host_insn_count, - (double)host_insn_count / insns_compiled); + + do_host_disasm(tcache_id); + dbg(1, " block #%d,%d tcache %d/%d, insns %d -> %d %.3f", + tcache_id, block_counts[tcache_id], + tcache_ptr - tcache_bases[tcache_id], tcache_sizes[tcache_id], + insns_compiled, host_insn_count, (double)host_insn_count / insns_compiled); + if ((sh2->pc & 0xc6000000) == 0x02000000) // ROM + dbg(1, " hash collisions %d/%d", hash_collisions, block_counts[tcache_id]); +#if (DRC_DEBUG & 2) + fflush(stdout); #endif - return block_entry; + return block_entry; +/* unimplemented: // last op -#if (DRC_DEBUG & 2) - host_dasm(tcache_dsm_ptr, (char *)tcache_ptr - (char *)tcache_dsm_ptr); - tcache_dsm_ptr = tcache_ptr; -#endif + do_host_disasm(tcache_id); exit(1); +*/ } void __attribute__((noinline)) sh2_drc_dispatcher(SH2 *sh2) { while (((signed int)sh2->sr >> 12) > 0) { - block_desc *bd = HASH_FUNC(sh2->pc_hashtab, sh2->pc); void *block = NULL; + block_desc *bd = NULL; - if (bd != NULL) { - if (bd->addr == sh2->pc) + // FIXME: must avoid doing it so often.. + sh2_test_irq(sh2); + + // we have full block id tables for data_array and RAM + // BIOS goes to data_array table too + if ((sh2->pc & 0xff000000) == 0xc0000000 || (sh2->pc & ~0xfff) == 0) { + int blkid = Pico32xMem->drcblk_da[sh2->is_slave][(sh2->pc & 0xfff) >> SH2_DRCBLK_DA_SHIFT]; + if (blkid & 1) { + bd = &block_tables[1 + sh2->is_slave][blkid >> 1]; + block = bd->tcache_ptr; + } + } + // RAM + else if ((sh2->pc & 0xc6000000) == 0x06000000) { + int blkid = Pico32xMem->drcblk_ram[(sh2->pc & 0x3ffff) >> SH2_DRCBLK_RAM_SHIFT]; + if (blkid & 1) { + bd = &block_tables[0][blkid >> 1]; block = bd->tcache_ptr; - else - block = dr_find_block(bd, sh2->pc); + } + } + // ROM + else if ((sh2->pc & 0xc6000000) == 0x02000000) { + bd = HASH_FUNC(hash_table, sh2->pc); + + if (bd != NULL) { + if (bd->addr == sh2->pc) + block = bd->tcache_ptr; + else + block = dr_find_block(bd, sh2->pc); + } } if (block == NULL) block = sh2_translate(sh2, bd); -#if (DRC_DEBUG & 4) - printf("= %csh2 enter %08x %p\n", sh2->is_slave ? 's' : 'm', sh2->pc, block); + dbg(4, "= %csh2 enter %08x %p, c=%d", sh2->is_slave ? 's' : 'm', + sh2->pc, block, (signed int)sh2->sr >> 12); +#if (DRC_DEBUG & 1) + if (bd != NULL) + bd->refcount++; #endif sh2_drc_entry(sh2, block); } } +static void sh2_smc_rm_block(u16 *drcblk, u16 *p, block_desc *btab, u32 a) +{ + u16 id = *p >> 1; + block_desc *bd = btab + id; + + dbg(1, " killing block %08x", bd->addr); + bd->addr = bd->end_addr = 0; + + while (p > drcblk && (p[-1] >> 1) == id) + p--; + + // check for possible overlay block + if (p > 0 && p[-1] != 0) { + bd = btab + (p[-1] >> 1); + if (bd->addr <= a && a < bd->end_addr) + sh2_smc_rm_block(drcblk, p - 1, btab, a); + } + + do { + *p++ = 0; + } + while ((*p >> 1) == id); +} + +void sh2_drc_wcheck_ram(unsigned int a, int val, int cpuid) +{ + u16 *drcblk = Pico32xMem->drcblk_ram; + u16 *p = drcblk + ((a & 0x3ffff) >> SH2_DRCBLK_RAM_SHIFT); + + dbg(1, "%csh2 smc check @%08x", cpuid ? 's' : 'm', a); + sh2_smc_rm_block(drcblk, p, block_tables[0], a); +} + +void sh2_drc_wcheck_da(unsigned int a, int val, int cpuid) +{ + u16 *drcblk = Pico32xMem->drcblk_da[cpuid]; + u16 *p = drcblk + ((a & 0xfff) >> SH2_DRCBLK_DA_SHIFT); + + dbg(1, "%csh2 smc check @%08x", cpuid ? 's' : 'm', a); + sh2_smc_rm_block(drcblk, p, block_tables[1 + cpuid], a); +} + void sh2_execute(SH2 *sh2, int cycles) { sh2->cycles_aim += cycles; @@ -405,43 +1173,118 @@ void sh2_execute(SH2 *sh2, int cycles) sh2->cycles_done += cycles - ((signed int)sh2->sr >> 12); } -static void __attribute__((regparm(1))) sh2_test_irq(SH2 *sh2) +static void REGPARM(1) sh2_test_irq(SH2 *sh2) { - if (sh2->pending_irl > sh2->pending_int_irq) - sh2_irl_irq(sh2, sh2->pending_irl); - else - sh2_internal_irq(sh2, sh2->pending_int_irq, sh2->pending_int_vector); + if (sh2->pending_level > ((sh2->sr >> 4) & 0x0f)) + { + if (sh2->pending_irl > sh2->pending_int_irq) + sh2_do_irq(sh2, sh2->pending_irl, 64 + sh2->pending_irl/2); + else { + sh2_do_irq(sh2, sh2->pending_int_irq, sh2->pending_int_vector); + sh2->pending_int_irq = 0; // auto-clear + sh2->pending_level = sh2->pending_irl; + } + } +} + +#if (DRC_DEBUG & 1) +static void block_stats(void) +{ + int c, b, i, total = 0; + + for (b = 0; b < ARRAY_SIZE(block_tables); b++) + for (i = 0; i < block_counts[b]; i++) + if (block_tables[b][i].addr != 0) + total += block_tables[b][i].refcount; + + for (c = 0; c < 10; c++) { + block_desc *blk, *maxb = NULL; + int max = 0; + for (b = 0; b < ARRAY_SIZE(block_tables); b++) { + for (i = 0; i < block_counts[b]; i++) { + blk = &block_tables[b][i]; + if (blk->addr != 0 && blk->refcount > max) { + max = blk->refcount; + maxb = blk; + } + } + } + if (maxb == NULL) + break; + printf("%08x %9d %2.3f%%\n", maxb->addr, maxb->refcount, + (double)maxb->refcount / total * 100.0); + maxb->refcount = 0; + } + + for (b = 0; b < ARRAY_SIZE(block_tables); b++) + for (i = 0; i < block_counts[b]; i++) + block_tables[b][i].refcount = 0; +} +#else +#define block_stats() +#endif + +void sh2_drc_flush_all(void) +{ + block_stats(); + flush_tcache(0); + flush_tcache(1); + flush_tcache(2); } int sh2_drc_init(SH2 *sh2) { - if (block_table == NULL) { - block_count = 0; - block_table = calloc(MAX_BLOCK_COUNT, sizeof(*block_table)); - if (block_table == NULL) + if (block_tables[0] == NULL) { + int i, cnt; + + drc_cmn_init(); + + cnt = block_max_counts[0] + block_max_counts[1] + block_max_counts[2]; + block_tables[0] = calloc(cnt, sizeof(*block_tables[0])); + if (block_tables[0] == NULL) return -1; - tcache_ptr = tcache; + memset(block_counts, 0, sizeof(block_counts)); + tcache_bases[0] = tcache_ptrs[0] = tcache; + + for (i = 1; i < ARRAY_SIZE(block_tables); i++) { + block_tables[i] = block_tables[i - 1] + block_max_counts[i - 1]; + tcache_bases[i] = tcache_ptrs[i] = tcache_bases[i - 1] + tcache_sizes[i - 1]; + } + + // tmp + PicoOpt |= POPT_DIS_VDP_FIFO; + +#if (DRC_DEBUG & 2) + for (i = 0; i < ARRAY_SIZE(block_tables); i++) + tcache_dsm_ptrs[i] = tcache_bases[i]; +#endif #if (DRC_DEBUG & 1) hash_collisions = 0; #endif } - //assert(sh2->pc_hashtab == NULL); - sh2->pc_hashtab = calloc(sizeof(sh2->pc_hashtab[0]), MAX_HASH_ENTRIES); - if (sh2->pc_hashtab == NULL) - return -1; + if (hash_table == NULL) { + hash_table = calloc(sizeof(hash_table[0]), MAX_HASH_ENTRIES); + if (hash_table == NULL) + return -1; + } return 0; } void sh2_drc_finish(SH2 *sh2) { - if (block_table != NULL) { - free(block_table); - block_table = NULL; + if (block_tables[0] != NULL) { + block_stats(); + free(block_tables[0]); + memset(block_tables, 0, sizeof(block_tables)); + + drc_cmn_cleanup(); } - free(sh2->pc_hashtab); - sh2->pc_hashtab = NULL; + if (hash_table != NULL) { + free(hash_table); + hash_table = NULL; + } }