e898de13 |
1 | /* |
cff531af |
2 | * SH2 recompiler |
228ee974 |
3 | * (C) notaz, 2009,2010,2013 |
cff531af |
4 | * |
5 | * This work is licensed under the terms of MAME license. |
6 | * See COPYING file in the top-level directory. |
44e6452e |
7 | * |
8 | * notes: |
9 | * - tcache, block descriptor, link buffer overflows result in sh2_translate() |
10 | * failure, followed by full tcache invalidation for that region |
00a725a8 |
11 | * - jumps between blocks are tracked for SMC handling (in block_entry->links), |
9bb5d91c |
12 | * except jumps between different tcaches |
13 | * |
14 | * implemented: |
15 | * - static register allocation |
16 | * - remaining register caching and tracking in temporaries |
17 | * - block-local branch linking |
18 | * - block linking (except between tcaches) |
23686515 |
19 | * - some constant propagation |
9bb5d91c |
20 | * |
21 | * TODO: |
23686515 |
22 | * - better constant propagation |
9bb5d91c |
23 | * - stack caching? |
24 | * - bug fixing |
e898de13 |
25 | */ |
f0d7b1fa |
26 | #include <stddef.h> |
679af8a3 |
27 | #include <stdio.h> |
28 | #include <stdlib.h> |
29 | #include <assert.h> |
41397701 |
30 | |
f4bb5d6b |
31 | #include "../../pico/pico_int.h" |
679af8a3 |
32 | #include "sh2.h" |
33 | #include "compiler.h" |
34 | #include "../drc/cmn.h" |
5686d931 |
35 | #include "../debug.h" |
679af8a3 |
36 | |
23686515 |
37 | // features |
38 | #define PROPAGATE_CONSTANTS 1 |
39 | #define LINK_BRANCHES 1 |
40 | |
04092e32 |
41 | // limits (per block) |
e1553677 |
42 | #define MAX_BLOCK_SIZE (BLOCK_INSN_LIMIT * 6 * 6) |
04092e32 |
43 | |
23686515 |
44 | // max literal offset from the block end |
45 | #define MAX_LITERAL_OFFSET 32*2 |
e1553677 |
46 | #define MAX_LITERALS (BLOCK_INSN_LIMIT / 4) |
04092e32 |
47 | #define MAX_LOCAL_BRANCHES 32 |
23686515 |
48 | |
00faec9c |
49 | // debug stuff |
d602fd4f |
50 | // 01 - warnings/errors |
51 | // 02 - block info/smc |
52 | // 04 - asm |
53 | // 08 - runtime block entry log |
54 | // 10 - smc self-check |
00faec9c |
55 | // { |
e898de13 |
56 | #ifndef DRC_DEBUG |
57 | #define DRC_DEBUG 0 |
58 | #endif |
59 | |
553c3eaa |
60 | #if DRC_DEBUG |
f4bb5d6b |
61 | #define dbg(l,...) { \ |
62 | if ((l) & DRC_DEBUG) \ |
63 | elprintf(EL_STATUS, ##__VA_ARGS__); \ |
64 | } |
e898de13 |
65 | #include "mame/sh2dasm.h" |
009ef50c |
66 | #include <platform/libpicofe/linux/host_dasm.h> |
e898de13 |
67 | static int insns_compiled, hash_collisions, host_insn_count; |
553c3eaa |
68 | #define COUNT_OP \ |
69 | host_insn_count++ |
70 | #else // !DRC_DEBUG |
71 | #define COUNT_OP |
72 | #define dbg(...) |
e898de13 |
73 | #endif |
553c3eaa |
74 | |
bf092a36 |
75 | /// |
76 | #define FETCH_OP(pc) \ |
77 | dr_pc_base[(pc) / 2] |
78 | |
79 | #define FETCH32(a) \ |
80 | ((dr_pc_base[(a) / 2] << 16) | dr_pc_base[(a) / 2 + 1]) |
81 | |
82 | #define CHECK_UNHANDLED_BITS(mask, label) { \ |
83 | if ((op & (mask)) != 0) \ |
84 | goto label; \ |
85 | } |
86 | |
87 | #define GET_Fx() \ |
88 | ((op >> 4) & 0x0f) |
89 | |
90 | #define GET_Rm GET_Fx |
91 | |
92 | #define GET_Rn() \ |
93 | ((op >> 8) & 0x0f) |
94 | |
95 | #define BITMASK1(v0) (1 << (v0)) |
96 | #define BITMASK2(v0,v1) ((1 << (v0)) | (1 << (v1))) |
97 | #define BITMASK3(v0,v1,v2) (BITMASK2(v0,v1) | (1 << (v2))) |
98 | #define BITMASK4(v0,v1,v2,v3) (BITMASK3(v0,v1,v2) | (1 << (v3))) |
99 | #define BITMASK5(v0,v1,v2,v3,v4) (BITMASK4(v0,v1,v2,v3) | (1 << (v4))) |
100 | |
101 | #define SHR_T SHR_SR // might make them separate someday |
102 | |
103 | static struct op_data { |
104 | u8 op; |
105 | u8 cycles; |
106 | u8 size; // 0, 1, 2 - byte, word, long |
107 | s8 rm; // branch or load/store data reg |
108 | u32 source; // bitmask of src regs |
109 | u32 dest; // bitmask of dest regs |
110 | u32 imm; // immediate/io address/branch target |
111 | // (for literal - address, not value) |
112 | } ops[BLOCK_INSN_LIMIT]; |
113 | |
114 | enum op_types { |
115 | OP_UNHANDLED = 0, |
116 | OP_BRANCH, |
117 | OP_BRANCH_CT, // conditional, branch if T set |
118 | OP_BRANCH_CF, // conditional, branch if T clear |
119 | OP_BRANCH_R, // indirect |
120 | OP_BRANCH_RF, // indirect far (PC + Rm) |
121 | OP_SETCLRT, // T flag set/clear |
122 | OP_MOVE, // register move |
fa841b44 |
123 | OP_LOAD_POOL, // literal pool load, imm is address |
124 | OP_MOVA, |
bf092a36 |
125 | OP_SLEEP, |
126 | OP_RTE, |
127 | }; |
128 | |
129 | #ifdef DRC_SH2 |
130 | |
405dfdd7 |
131 | static int literal_disabled_frames; |
132 | |
fcdefcf6 |
133 | #if (DRC_DEBUG & 4) |
f4bb5d6b |
134 | static u8 *tcache_dsm_ptrs[3]; |
e898de13 |
135 | static char sh2dasm_buff[64]; |
f4bb5d6b |
136 | #define do_host_disasm(tcid) \ |
137 | host_dasm(tcache_dsm_ptrs[tcid], tcache_ptr - tcache_dsm_ptrs[tcid]); \ |
138 | tcache_dsm_ptrs[tcid] = tcache_ptr |
139 | #else |
140 | #define do_host_disasm(x) |
e898de13 |
141 | #endif |
e05b81fc |
142 | |
fcdefcf6 |
143 | #if (DRC_DEBUG & 8) || defined(PDB) |
5686d931 |
144 | static void REGPARM(3) *sh2_drc_log_entry(void *block, SH2 *sh2, u32 sr) |
e05b81fc |
145 | { |
5686d931 |
146 | if (block != NULL) { |
fcdefcf6 |
147 | dbg(8, "= %csh2 enter %08x %p, c=%d", sh2->is_slave ? 's' : 'm', |
e05b81fc |
148 | sh2->pc, block, (signed int)sr >> 12); |
5686d931 |
149 | pdb_step(sh2, sh2->pc); |
150 | } |
e05b81fc |
151 | return block; |
152 | } |
153 | #endif |
8796b7ee |
154 | // } debug |
e898de13 |
155 | |
44e6452e |
156 | #define TCACHE_BUFFERS 3 |
f4bb5d6b |
157 | |
158 | // we have 3 translation cache buffers, split from one drc/cmn buffer. |
159 | // BIOS shares tcache with data array because it's only used for init |
160 | // and can be discarded early |
8796b7ee |
161 | // XXX: need to tune sizes |
44e6452e |
162 | static const int tcache_sizes[TCACHE_BUFFERS] = { |
4943816b |
163 | DRC_TCACHE_SIZE * 6 / 8, // ROM (rarely used), DRAM |
f4bb5d6b |
164 | DRC_TCACHE_SIZE / 8, // BIOS, data array in master sh2 |
165 | DRC_TCACHE_SIZE / 8, // ... slave |
166 | }; |
679af8a3 |
167 | |
44e6452e |
168 | static u8 *tcache_bases[TCACHE_BUFFERS]; |
169 | static u8 *tcache_ptrs[TCACHE_BUFFERS]; |
f4bb5d6b |
170 | |
171 | // ptr for code emiters |
172 | static u8 *tcache_ptr; |
e898de13 |
173 | |
228ee974 |
174 | #define MAX_BLOCK_ENTRIES (BLOCK_INSN_LIMIT / 8) |
175 | |
00a725a8 |
176 | struct block_link { |
177 | u32 target_pc; |
178 | void *jump; // insn address |
179 | struct block_link *next; // either in block_entry->links or |
180 | }; |
181 | |
228ee974 |
182 | struct block_entry { |
183 | u32 pc; |
44e6452e |
184 | void *tcache_ptr; // translated block for above PC |
228ee974 |
185 | struct block_entry *next; // next block in hash_table with same pc hash |
00a725a8 |
186 | struct block_link *links; // links to this entry |
228ee974 |
187 | #if (DRC_DEBUG & 2) |
188 | struct block_desc *block; |
189 | #endif |
190 | }; |
191 | |
192 | struct block_desc { |
193 | u32 addr; // block start SH2 PC address |
51d86e55 |
194 | u16 size; // ..of recompiled insns+lit. pool |
195 | u16 size_nolit; // same without literals |
fcdefcf6 |
196 | #if (DRC_DEBUG & 2) |
44e6452e |
197 | int refcount; |
198 | #endif |
228ee974 |
199 | int entry_count; |
200 | struct block_entry entryp[MAX_BLOCK_ENTRIES]; |
e1553677 |
201 | }; |
44e6452e |
202 | |
44e6452e |
203 | static const int block_max_counts[TCACHE_BUFFERS] = { |
204 | 4*1024, |
205 | 256, |
206 | 256, |
207 | }; |
e1553677 |
208 | static struct block_desc *block_tables[TCACHE_BUFFERS]; |
44e6452e |
209 | static int block_counts[TCACHE_BUFFERS]; |
228ee974 |
210 | |
00a725a8 |
211 | // we have block_link_pool to avoid using mallocs |
212 | static const int block_link_pool_max_counts[TCACHE_BUFFERS] = { |
228ee974 |
213 | 4*1024, |
214 | 256, |
215 | 256, |
216 | }; |
00a725a8 |
217 | static struct block_link *block_link_pool[TCACHE_BUFFERS]; |
218 | static int block_link_pool_counts[TCACHE_BUFFERS]; |
219 | static struct block_link *unresolved_links[TCACHE_BUFFERS]; |
44e6452e |
220 | |
4943816b |
221 | // used for invalidation |
222 | static const int ram_sizes[TCACHE_BUFFERS] = { |
223 | 0x40000, |
224 | 0x1000, |
225 | 0x1000, |
226 | }; |
51d86e55 |
227 | #define INVAL_PAGE_SIZE 0x100 |
4943816b |
228 | |
229 | struct block_list { |
e1553677 |
230 | struct block_desc *block; |
4943816b |
231 | struct block_list *next; |
232 | }; |
233 | |
234 | // array of pointers to block_lists for RAM and 2 data arrays |
51d86e55 |
235 | // each array has len: sizeof(mem) / INVAL_PAGE_SIZE |
4943816b |
236 | static struct block_list **inval_lookup[TCACHE_BUFFERS]; |
569420b0 |
237 | |
228ee974 |
238 | static const int hash_table_sizes[TCACHE_BUFFERS] = { |
239 | 0x1000, |
240 | 0x100, |
241 | 0x100, |
242 | }; |
243 | static struct block_entry **hash_tables[TCACHE_BUFFERS]; |
244 | |
245 | #define HASH_FUNC(hash_tab, addr, mask) \ |
246 | (hash_tab)[(((addr) >> 20) ^ ((addr) >> 2)) & (mask)] |
247 | |
c18edb34 |
248 | // host register tracking |
249 | enum { |
250 | HR_FREE, |
251 | HR_CACHED, // 'val' has sh2_reg_e |
23686515 |
252 | // HR_CONST, // 'val' has a constant |
c18edb34 |
253 | HR_TEMP, // reg used for temp storage |
254 | }; |
255 | |
23686515 |
256 | enum { |
257 | HRF_DIRTY = 1 << 0, // reg has "dirty" value to be written to ctx |
258 | HRF_LOCKED = 1 << 1, // HR_CACHED can't be evicted |
259 | }; |
260 | |
c18edb34 |
261 | typedef struct { |
23686515 |
262 | u32 hreg:5; // "host" reg |
263 | u32 greg:5; // "guest" reg |
264 | u32 type:3; |
265 | u32 flags:3; |
266 | u32 stamp:16; // kind of a timestamp |
c18edb34 |
267 | } temp_reg_t; |
268 | |
80599a42 |
269 | // note: reg_temp[] must have at least the amount of |
3863edbd |
270 | // registers used by handlers in worst case (currently 4) |
d4d62665 |
271 | #ifdef __arm__ |
65c75cb0 |
272 | #include "../drc/emit_arm.c" |
273 | |
2dbc96b1 |
274 | #ifndef __MACH__ |
275 | |
65c75cb0 |
276 | static const int reg_map_g2h[] = { |
8b4f38f4 |
277 | 4, 5, 6, 7, |
278 | 8, -1, -1, -1, |
c18edb34 |
279 | -1, -1, -1, -1, |
65514d85 |
280 | -1, -1, -1, 9, // r12 .. sp |
281 | -1, -1, -1, 10, // SHR_PC, SHR_PPC, SHR_PR, SHR_SR, |
282 | -1, -1, -1, -1, // SHR_GBR, SHR_VBR, SHR_MACH, SHR_MACL, |
c18edb34 |
283 | }; |
284 | |
2dbc96b1 |
285 | #else |
286 | |
287 | // no r9.. |
288 | static const int reg_map_g2h[] = { |
289 | 4, 5, 6, 7, |
290 | -1, -1, -1, -1, |
291 | -1, -1, -1, -1, |
292 | -1, -1, -1, 8, // r12 .. sp |
293 | -1, -1, -1, 10, // SHR_PC, SHR_PPC, SHR_PR, SHR_SR, |
294 | -1, -1, -1, -1, // SHR_GBR, SHR_VBR, SHR_MACH, SHR_MACL, |
295 | }; |
296 | |
297 | #endif |
298 | |
c18edb34 |
299 | static temp_reg_t reg_temp[] = { |
300 | { 0, }, |
301 | { 1, }, |
302 | { 12, }, |
303 | { 14, }, |
304 | { 2, }, |
305 | { 3, }, |
65c75cb0 |
306 | }; |
307 | |
e05b81fc |
308 | #elif defined(__i386__) |
e898de13 |
309 | #include "../drc/emit_x86.c" |
310 | |
65c75cb0 |
311 | static const int reg_map_g2h[] = { |
8b4f38f4 |
312 | xSI,-1, -1, -1, |
c18edb34 |
313 | -1, -1, -1, -1, |
314 | -1, -1, -1, -1, |
315 | -1, -1, -1, -1, |
8b4f38f4 |
316 | -1, -1, -1, xDI, |
c18edb34 |
317 | -1, -1, -1, -1, |
318 | }; |
319 | |
3863edbd |
320 | // ax, cx, dx are usually temporaries by convention |
c18edb34 |
321 | static temp_reg_t reg_temp[] = { |
322 | { xAX, }, |
3863edbd |
323 | { xBX, }, |
c18edb34 |
324 | { xCX, }, |
325 | { xDX, }, |
65c75cb0 |
326 | }; |
327 | |
e05b81fc |
328 | #else |
329 | #error unsupported arch |
65c75cb0 |
330 | #endif |
331 | |
80599a42 |
332 | #define T 0x00000001 |
333 | #define S 0x00000002 |
334 | #define I 0x000000f0 |
335 | #define Q 0x00000100 |
336 | #define M 0x00000200 |
18b94127 |
337 | #define T_save 0x00000800 |
80599a42 |
338 | |
e05b81fc |
339 | #define I_SHIFT 4 |
f0d7b1fa |
340 | #define Q_SHIFT 8 |
341 | #define M_SHIFT 9 |
342 | |
e05b81fc |
343 | static void REGPARM(1) (*sh2_drc_entry)(SH2 *sh2); |
344 | static void (*sh2_drc_dispatcher)(void); |
345 | static void (*sh2_drc_exit)(void); |
346 | static void (*sh2_drc_test_irq)(void); |
5686d931 |
347 | |
348 | static u32 REGPARM(2) (*sh2_drc_read8)(u32 a, SH2 *sh2); |
349 | static u32 REGPARM(2) (*sh2_drc_read16)(u32 a, SH2 *sh2); |
350 | static u32 REGPARM(2) (*sh2_drc_read32)(u32 a, SH2 *sh2); |
e05b81fc |
351 | static void REGPARM(2) (*sh2_drc_write8)(u32 a, u32 d); |
e05b81fc |
352 | static void REGPARM(2) (*sh2_drc_write16)(u32 a, u32 d); |
f81107f5 |
353 | static void REGPARM(3) (*sh2_drc_write32)(u32 a, u32 d, SH2 *sh2); |
679af8a3 |
354 | |
a2b8c5a5 |
355 | // address space stuff |
a2b8c5a5 |
356 | static int dr_ctx_get_mem_ptr(u32 a, u32 *mask) |
357 | { |
358 | int poffs = -1; |
359 | |
360 | if ((a & ~0x7ff) == 0) { |
361 | // BIOS |
362 | poffs = offsetof(SH2, p_bios); |
363 | *mask = 0x7ff; |
364 | } |
365 | else if ((a & 0xfffff000) == 0xc0000000) { |
366 | // data array |
f81107f5 |
367 | // FIXME: access sh2->data_array instead |
a2b8c5a5 |
368 | poffs = offsetof(SH2, p_da); |
369 | *mask = 0xfff; |
370 | } |
371 | else if ((a & 0xc6000000) == 0x06000000) { |
372 | // SDRAM |
373 | poffs = offsetof(SH2, p_sdram); |
374 | *mask = 0x03ffff; |
375 | } |
376 | else if ((a & 0xc6000000) == 0x02000000) { |
377 | // ROM |
378 | poffs = offsetof(SH2, p_rom); |
379 | *mask = 0x3fffff; |
380 | } |
381 | |
382 | return poffs; |
383 | } |
384 | |
228ee974 |
385 | static struct block_entry *dr_get_entry(u32 pc, int is_slave, int *tcache_id) |
a2b8c5a5 |
386 | { |
228ee974 |
387 | struct block_entry *be; |
388 | u32 tcid = 0, mask; |
a2b8c5a5 |
389 | |
228ee974 |
390 | // data arrays have their own caches |
391 | if ((pc & 0xe0000000) == 0xc0000000 || (pc & ~0xfff) == 0) |
392 | tcid = 1 + is_slave; |
393 | |
394 | *tcache_id = tcid; |
395 | |
396 | mask = hash_table_sizes[tcid] - 1; |
397 | be = HASH_FUNC(hash_tables[tcid], pc, mask); |
398 | for (; be != NULL; be = be->next) |
399 | if (be->pc == pc) |
400 | return be; |
a2b8c5a5 |
401 | |
402 | return NULL; |
403 | } |
404 | |
405 | // --------------------------------------------------------------- |
406 | |
407 | // block management |
e1553677 |
408 | static void add_to_block_list(struct block_list **blist, struct block_desc *block) |
4943816b |
409 | { |
410 | struct block_list *added = malloc(sizeof(*added)); |
411 | if (!added) { |
412 | elprintf(EL_ANOMALY, "drc OOM (1)"); |
413 | return; |
414 | } |
415 | added->block = block; |
416 | added->next = *blist; |
417 | *blist = added; |
418 | } |
419 | |
e1553677 |
420 | static void rm_from_block_list(struct block_list **blist, struct block_desc *block) |
4943816b |
421 | { |
422 | struct block_list *prev = NULL, *current = *blist; |
f0ed9e38 |
423 | for (; current != NULL; current = current->next) { |
4943816b |
424 | if (current->block == block) { |
425 | if (prev == NULL) |
426 | *blist = current->next; |
427 | else |
428 | prev->next = current->next; |
429 | free(current); |
430 | return; |
431 | } |
f0ed9e38 |
432 | prev = current; |
4943816b |
433 | } |
434 | dbg(1, "can't rm block %p (%08x-%08x)", |
51d86e55 |
435 | block, block->addr, block->addr + block->size); |
4943816b |
436 | } |
437 | |
438 | static void rm_block_list(struct block_list **blist) |
439 | { |
440 | struct block_list *tmp, *current = *blist; |
441 | while (current != NULL) { |
442 | tmp = current; |
443 | current = current->next; |
444 | free(tmp); |
445 | } |
446 | *blist = NULL; |
447 | } |
448 | |
a2b8c5a5 |
449 | static void REGPARM(1) flush_tcache(int tcid) |
f4bb5d6b |
450 | { |
4943816b |
451 | int i; |
452 | |
553c3eaa |
453 | dbg(1, "tcache #%d flush! (%d/%d, bds %d/%d)", tcid, |
f4bb5d6b |
454 | tcache_ptrs[tcid] - tcache_bases[tcid], tcache_sizes[tcid], |
455 | block_counts[tcid], block_max_counts[tcid]); |
456 | |
457 | block_counts[tcid] = 0; |
00a725a8 |
458 | block_link_pool_counts[tcid] = 0; |
459 | unresolved_links[tcid] = NULL; |
228ee974 |
460 | memset(hash_tables[tcid], 0, sizeof(*hash_tables[0]) * hash_table_sizes[tcid]); |
f4bb5d6b |
461 | tcache_ptrs[tcid] = tcache_bases[tcid]; |
228ee974 |
462 | if (Pico32xMem != NULL) { |
463 | if (tcid == 0) // ROM, RAM |
464 | memset(Pico32xMem->drcblk_ram, 0, |
465 | sizeof(Pico32xMem->drcblk_ram)); |
466 | else |
467 | memset(Pico32xMem->drcblk_da[tcid - 1], 0, |
468 | sizeof(Pico32xMem->drcblk_da[0])); |
f4bb5d6b |
469 | } |
fcdefcf6 |
470 | #if (DRC_DEBUG & 4) |
f4bb5d6b |
471 | tcache_dsm_ptrs[tcid] = tcache_bases[tcid]; |
472 | #endif |
4943816b |
473 | |
51d86e55 |
474 | for (i = 0; i < ram_sizes[tcid] / INVAL_PAGE_SIZE; i++) |
4943816b |
475 | rm_block_list(&inval_lookup[tcid][i]); |
f4bb5d6b |
476 | } |
477 | |
228ee974 |
478 | static void add_to_hashlist(struct block_entry *be, int tcache_id) |
479 | { |
480 | u32 tcmask = hash_table_sizes[tcache_id] - 1; |
481 | |
482 | be->next = HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask); |
483 | HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask) = be; |
484 | |
485 | #if (DRC_DEBUG & 2) |
486 | if (be->next != NULL) { |
487 | printf(" %08x: hash collision with %08x\n", |
488 | be->pc, be->next->pc); |
489 | hash_collisions++; |
490 | } |
491 | #endif |
492 | } |
493 | |
494 | static void rm_from_hashlist(struct block_entry *be, int tcache_id) |
495 | { |
496 | u32 tcmask = hash_table_sizes[tcache_id] - 1; |
497 | struct block_entry *cur, *prev; |
498 | |
499 | cur = HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask); |
500 | if (cur == NULL) |
501 | goto missing; |
502 | |
503 | if (be == cur) { // first |
504 | HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask) = be->next; |
505 | return; |
506 | } |
507 | |
508 | for (prev = cur, cur = cur->next; cur != NULL; cur = cur->next) { |
509 | if (cur == be) { |
510 | prev->next = cur->next; |
511 | return; |
512 | } |
513 | } |
514 | |
515 | missing: |
516 | dbg(1, "rm_from_hashlist: be %p %08x missing?", be, be->pc); |
517 | } |
518 | |
f0ed9e38 |
519 | static void unregister_links(struct block_entry *be, int tcache_id) |
520 | { |
521 | struct block_link *bl_unresolved = unresolved_links[tcache_id]; |
522 | struct block_link *bl, *bl_next; |
523 | |
524 | for (bl = be->links; bl != NULL; ) { |
525 | bl_next = bl->next; |
526 | bl->next = bl_unresolved; |
527 | bl_unresolved = bl; |
528 | bl = bl_next; |
529 | } |
530 | be->links = NULL; |
531 | unresolved_links[tcache_id] = bl_unresolved; |
532 | } |
533 | |
534 | // unlike sh2_smc_rm_block, the block stays and can still be accessed |
535 | // by other already directly linked blocks, just not preferred |
536 | static void kill_block_entry(struct block_entry *be, int tcache_id) |
537 | { |
538 | rm_from_hashlist(be, tcache_id); |
539 | unregister_links(be, tcache_id); |
540 | } |
541 | |
51d86e55 |
542 | static struct block_desc *dr_add_block(u32 addr, u16 size_lit, |
543 | u16 size_nolit, int is_slave, int *blk_id) |
679af8a3 |
544 | { |
228ee974 |
545 | struct block_entry *be; |
e1553677 |
546 | struct block_desc *bd; |
a2b8c5a5 |
547 | int tcache_id; |
548 | int *bcount; |
549 | |
228ee974 |
550 | // do a lookup to get tcache_id and override check |
551 | be = dr_get_entry(addr, is_slave, &tcache_id); |
f0ed9e38 |
552 | if (be != NULL) { |
553 | dbg(1, "block override for %08x, was %p", addr, be->tcache_ptr); |
554 | kill_block_entry(be, tcache_id); |
555 | } |
679af8a3 |
556 | |
a2b8c5a5 |
557 | bcount = &block_counts[tcache_id]; |
44e6452e |
558 | if (*bcount >= block_max_counts[tcache_id]) { |
fcdefcf6 |
559 | dbg(1, "bd overflow for tcache %d", tcache_id); |
f4bb5d6b |
560 | return NULL; |
44e6452e |
561 | } |
679af8a3 |
562 | |
f4bb5d6b |
563 | bd = &block_tables[tcache_id][*bcount]; |
679af8a3 |
564 | bd->addr = addr; |
51d86e55 |
565 | bd->size = size_lit; |
566 | bd->size_nolit = size_nolit; |
679af8a3 |
567 | |
228ee974 |
568 | bd->entry_count = 1; |
569 | bd->entryp[0].pc = addr; |
570 | bd->entryp[0].tcache_ptr = tcache_ptr; |
00a725a8 |
571 | bd->entryp[0].links = NULL; |
fcdefcf6 |
572 | #if (DRC_DEBUG & 2) |
228ee974 |
573 | bd->entryp[0].block = bd; |
574 | bd->refcount = 0; |
18b94127 |
575 | #endif |
228ee974 |
576 | add_to_hashlist(&bd->entryp[0], tcache_id); |
577 | |
578 | *blk_id = *bcount; |
579 | (*bcount)++; |
18b94127 |
580 | |
679af8a3 |
581 | return bd; |
582 | } |
583 | |
a2b8c5a5 |
584 | static void REGPARM(3) *dr_lookup_block(u32 pc, int is_slave, int *tcache_id) |
585 | { |
228ee974 |
586 | struct block_entry *be = NULL; |
a2b8c5a5 |
587 | void *block = NULL; |
588 | |
228ee974 |
589 | be = dr_get_entry(pc, is_slave, tcache_id); |
590 | if (be != NULL) |
591 | block = be->tcache_ptr; |
a2b8c5a5 |
592 | |
fcdefcf6 |
593 | #if (DRC_DEBUG & 2) |
228ee974 |
594 | if (be != NULL) |
595 | be->block->refcount++; |
a2b8c5a5 |
596 | #endif |
597 | return block; |
598 | } |
599 | |
c25d78ee |
600 | static void *dr_failure(void) |
601 | { |
602 | lprintf("recompilation failed\n"); |
603 | exit(1); |
604 | } |
605 | |
00a725a8 |
606 | static void *dr_prepare_ext_branch(u32 pc, int is_slave, int tcache_id) |
a2b8c5a5 |
607 | { |
608 | #if LINK_BRANCHES |
00a725a8 |
609 | struct block_link *bl = block_link_pool[tcache_id]; |
610 | int cnt = block_link_pool_counts[tcache_id]; |
611 | struct block_entry *be = NULL; |
a2b8c5a5 |
612 | int target_tcache_id; |
00a725a8 |
613 | int i; |
614 | |
615 | be = dr_get_entry(pc, is_slave, &target_tcache_id); |
616 | if (target_tcache_id != tcache_id) |
617 | return sh2_drc_dispatcher; |
618 | |
619 | // if pool has been freed, reuse |
620 | for (i = cnt - 1; i >= 0; i--) |
621 | if (bl[i].target_pc != 0) |
622 | break; |
623 | cnt = i + 1; |
624 | if (cnt >= block_link_pool_max_counts[tcache_id]) { |
6d797957 |
625 | dbg(1, "bl overflow for tcache %d", tcache_id); |
00a725a8 |
626 | return NULL; |
a2b8c5a5 |
627 | } |
00a725a8 |
628 | bl += cnt; |
629 | block_link_pool_counts[tcache_id]++; |
a2b8c5a5 |
630 | |
00a725a8 |
631 | bl->target_pc = pc; |
632 | bl->jump = tcache_ptr; |
633 | |
634 | if (be != NULL) { |
635 | dbg(2, "- early link from %p to pc %08x", bl->jump, pc); |
636 | bl->next = be->links; |
637 | be->links = bl; |
638 | return be->tcache_ptr; |
639 | } |
640 | else { |
641 | bl->next = unresolved_links[tcache_id]; |
642 | unresolved_links[tcache_id] = bl; |
643 | return sh2_drc_dispatcher; |
644 | } |
a2b8c5a5 |
645 | #else |
646 | return sh2_drc_dispatcher; |
647 | #endif |
648 | } |
649 | |
00a725a8 |
650 | static void dr_link_blocks(struct block_entry *be, int tcache_id) |
a2b8c5a5 |
651 | { |
00a725a8 |
652 | #if LINK_BRANCHES |
653 | struct block_link *first = unresolved_links[tcache_id]; |
654 | struct block_link *bl, *prev, *tmp; |
655 | u32 pc = be->pc; |
656 | |
657 | for (bl = prev = first; bl != NULL; ) { |
658 | if (bl->target_pc == pc) { |
659 | dbg(2, "- link from %p to pc %08x", bl->jump, pc); |
660 | emith_jump_patch(bl->jump, tcache_ptr); |
661 | |
662 | // move bl from unresolved_links to block_entry |
663 | tmp = bl->next; |
664 | bl->next = be->links; |
665 | be->links = bl; |
666 | |
667 | if (bl == first) |
668 | first = prev = bl = tmp; |
669 | else |
670 | prev->next = bl = tmp; |
671 | continue; |
a2b8c5a5 |
672 | } |
00a725a8 |
673 | prev = bl; |
674 | bl = bl->next; |
a2b8c5a5 |
675 | } |
00a725a8 |
676 | unresolved_links[tcache_id] = first; |
677 | |
678 | // could sync arm caches here, but that's unnecessary |
a2b8c5a5 |
679 | #endif |
680 | } |
681 | |
44e6452e |
682 | #define ADD_TO_ARRAY(array, count, item, failcode) \ |
44e6452e |
683 | if (count >= ARRAY_SIZE(array)) { \ |
fcdefcf6 |
684 | dbg(1, "warning: " #array " overflow"); \ |
44e6452e |
685 | failcode; \ |
fa841b44 |
686 | } \ |
687 | array[count++] = item; |
44e6452e |
688 | |
a2b8c5a5 |
689 | static int find_in_array(u32 *array, size_t size, u32 what) |
18b94127 |
690 | { |
691 | size_t i; |
692 | for (i = 0; i < size; i++) |
693 | if (what == array[i]) |
694 | return i; |
695 | |
696 | return -1; |
697 | } |
679af8a3 |
698 | |
699 | // --------------------------------------------------------------- |
700 | |
a2b8c5a5 |
701 | // register cache / constant propagation stuff |
23686515 |
702 | typedef enum { |
703 | RC_GR_READ, |
704 | RC_GR_WRITE, |
705 | RC_GR_RMW, |
706 | } rc_gr_mode; |
707 | |
708 | static int rcache_get_reg_(sh2_reg_e r, rc_gr_mode mode, int do_locking); |
709 | |
710 | // guest regs with constants |
711 | static u32 dr_gcregs[24]; |
712 | // a mask of constant/dirty regs |
713 | static u32 dr_gcregs_mask; |
714 | static u32 dr_gcregs_dirty; |
715 | |
a2b8c5a5 |
716 | #if PROPAGATE_CONSTANTS |
23686515 |
717 | static void gconst_new(sh2_reg_e r, u32 val) |
718 | { |
23686515 |
719 | int i; |
720 | |
721 | dr_gcregs_mask |= 1 << r; |
722 | dr_gcregs_dirty |= 1 << r; |
723 | dr_gcregs[r] = val; |
724 | |
725 | // throw away old r that we might have cached |
726 | for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { |
727 | if ((reg_temp[i].type == HR_CACHED) && |
728 | reg_temp[i].greg == r) { |
729 | reg_temp[i].type = HR_FREE; |
730 | reg_temp[i].flags = 0; |
731 | } |
732 | } |
23686515 |
733 | } |
a2b8c5a5 |
734 | #endif |
23686515 |
735 | |
736 | static int gconst_get(sh2_reg_e r, u32 *val) |
737 | { |
738 | if (dr_gcregs_mask & (1 << r)) { |
739 | *val = dr_gcregs[r]; |
740 | return 1; |
741 | } |
742 | return 0; |
743 | } |
744 | |
745 | static int gconst_check(sh2_reg_e r) |
746 | { |
747 | if ((dr_gcregs_mask | dr_gcregs_dirty) & (1 << r)) |
748 | return 1; |
749 | return 0; |
750 | } |
751 | |
752 | // update hr if dirty, else do nothing |
753 | static int gconst_try_read(int hr, sh2_reg_e r) |
754 | { |
755 | if (dr_gcregs_dirty & (1 << r)) { |
756 | emith_move_r_imm(hr, dr_gcregs[r]); |
757 | dr_gcregs_dirty &= ~(1 << r); |
758 | return 1; |
759 | } |
760 | return 0; |
761 | } |
762 | |
763 | static void gconst_check_evict(sh2_reg_e r) |
764 | { |
765 | if (dr_gcregs_mask & (1 << r)) |
766 | // no longer cached in reg, make dirty again |
767 | dr_gcregs_dirty |= 1 << r; |
768 | } |
769 | |
770 | static void gconst_kill(sh2_reg_e r) |
771 | { |
772 | dr_gcregs_mask &= ~(1 << r); |
773 | dr_gcregs_dirty &= ~(1 << r); |
774 | } |
775 | |
776 | static void gconst_clean(void) |
777 | { |
778 | int i; |
779 | |
780 | for (i = 0; i < ARRAY_SIZE(dr_gcregs); i++) |
781 | if (dr_gcregs_dirty & (1 << i)) { |
782 | // using RC_GR_READ here: it will call gconst_try_read, |
783 | // cache the reg and mark it dirty. |
784 | rcache_get_reg_(i, RC_GR_READ, 0); |
785 | } |
786 | } |
787 | |
788 | static void gconst_invalidate(void) |
789 | { |
790 | dr_gcregs_mask = dr_gcregs_dirty = 0; |
791 | } |
792 | |
c18edb34 |
793 | static u16 rcache_counter; |
794 | |
795 | static temp_reg_t *rcache_evict(void) |
41397701 |
796 | { |
c18edb34 |
797 | // evict reg with oldest stamp |
798 | int i, oldest = -1; |
799 | u16 min_stamp = (u16)-1; |
800 | |
801 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) { |
23686515 |
802 | if (reg_temp[i].type == HR_CACHED && !(reg_temp[i].flags & HRF_LOCKED) && |
803 | reg_temp[i].stamp <= min_stamp) { |
804 | min_stamp = reg_temp[i].stamp; |
805 | oldest = i; |
806 | } |
c18edb34 |
807 | } |
808 | |
809 | if (oldest == -1) { |
80599a42 |
810 | printf("no registers to evict, aborting\n"); |
c18edb34 |
811 | exit(1); |
812 | } |
813 | |
814 | i = oldest; |
23686515 |
815 | if (reg_temp[i].type == HR_CACHED) { |
816 | if (reg_temp[i].flags & HRF_DIRTY) |
817 | // writeback |
818 | emith_ctx_write(reg_temp[i].hreg, reg_temp[i].greg * 4); |
819 | gconst_check_evict(reg_temp[i].greg); |
c18edb34 |
820 | } |
821 | |
23686515 |
822 | reg_temp[i].type = HR_FREE; |
823 | reg_temp[i].flags = 0; |
c18edb34 |
824 | return ®_temp[i]; |
679af8a3 |
825 | } |
826 | |
23686515 |
827 | static int get_reg_static(sh2_reg_e r, rc_gr_mode mode) |
828 | { |
829 | int i = reg_map_g2h[r]; |
830 | if (i != -1) { |
831 | if (mode != RC_GR_WRITE) |
832 | gconst_try_read(i, r); |
833 | } |
834 | return i; |
835 | } |
c18edb34 |
836 | |
80599a42 |
837 | // note: must not be called when doing conditional code |
23686515 |
838 | static int rcache_get_reg_(sh2_reg_e r, rc_gr_mode mode, int do_locking) |
679af8a3 |
839 | { |
c18edb34 |
840 | temp_reg_t *tr; |
23686515 |
841 | int i, ret; |
c18edb34 |
842 | |
23686515 |
843 | // maybe statically mapped? |
844 | ret = get_reg_static(r, mode); |
845 | if (ret != -1) |
846 | goto end; |
679af8a3 |
847 | |
c18edb34 |
848 | rcache_counter++; |
849 | |
850 | // maybe already cached? |
23686515 |
851 | // if so, prefer against gconst (they must be in sync) |
c18edb34 |
852 | for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { |
23686515 |
853 | if (reg_temp[i].type == HR_CACHED && reg_temp[i].greg == r) { |
c18edb34 |
854 | reg_temp[i].stamp = rcache_counter; |
855 | if (mode != RC_GR_READ) |
23686515 |
856 | reg_temp[i].flags |= HRF_DIRTY; |
857 | ret = reg_temp[i].hreg; |
858 | goto end; |
c18edb34 |
859 | } |
679af8a3 |
860 | } |
861 | |
c18edb34 |
862 | // use any free reg |
863 | for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { |
23686515 |
864 | if (reg_temp[i].type == HR_FREE) { |
c18edb34 |
865 | tr = ®_temp[i]; |
866 | goto do_alloc; |
867 | } |
868 | } |
869 | |
870 | tr = rcache_evict(); |
871 | |
872 | do_alloc: |
23686515 |
873 | tr->type = HR_CACHED; |
874 | if (do_locking) |
875 | tr->flags |= HRF_LOCKED; |
876 | if (mode != RC_GR_READ) |
877 | tr->flags |= HRF_DIRTY; |
878 | tr->greg = r; |
c18edb34 |
879 | tr->stamp = rcache_counter; |
23686515 |
880 | ret = tr->hreg; |
881 | |
882 | if (mode != RC_GR_WRITE) { |
883 | if (gconst_check(r)) { |
884 | if (gconst_try_read(ret, r)) |
885 | tr->flags |= HRF_DIRTY; |
886 | } |
887 | else |
888 | emith_ctx_read(tr->hreg, r * 4); |
889 | } |
890 | |
891 | end: |
892 | if (mode != RC_GR_READ) |
893 | gconst_kill(r); |
894 | |
895 | return ret; |
896 | } |
897 | |
898 | static int rcache_get_reg(sh2_reg_e r, rc_gr_mode mode) |
899 | { |
900 | return rcache_get_reg_(r, mode, 1); |
679af8a3 |
901 | } |
902 | |
c18edb34 |
903 | static int rcache_get_tmp(void) |
679af8a3 |
904 | { |
c18edb34 |
905 | temp_reg_t *tr; |
906 | int i; |
907 | |
908 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
23686515 |
909 | if (reg_temp[i].type == HR_FREE) { |
c18edb34 |
910 | tr = ®_temp[i]; |
911 | goto do_alloc; |
912 | } |
913 | |
914 | tr = rcache_evict(); |
915 | |
916 | do_alloc: |
917 | tr->type = HR_TEMP; |
23686515 |
918 | return tr->hreg; |
c18edb34 |
919 | } |
920 | |
80599a42 |
921 | static int rcache_get_arg_id(int arg) |
922 | { |
923 | int i, r = 0; |
924 | host_arg2reg(r, arg); |
925 | |
926 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
23686515 |
927 | if (reg_temp[i].hreg == r) |
80599a42 |
928 | break; |
929 | |
04092e32 |
930 | if (i == ARRAY_SIZE(reg_temp)) // can't happen |
931 | exit(1); |
80599a42 |
932 | |
23686515 |
933 | if (reg_temp[i].type == HR_CACHED) { |
80599a42 |
934 | // writeback |
23686515 |
935 | if (reg_temp[i].flags & HRF_DIRTY) |
936 | emith_ctx_write(reg_temp[i].hreg, reg_temp[i].greg * 4); |
937 | gconst_check_evict(reg_temp[i].greg); |
80599a42 |
938 | } |
939 | else if (reg_temp[i].type == HR_TEMP) { |
940 | printf("arg %d reg %d already used, aborting\n", arg, r); |
941 | exit(1); |
942 | } |
943 | |
23686515 |
944 | reg_temp[i].type = HR_FREE; |
945 | reg_temp[i].flags = 0; |
946 | |
80599a42 |
947 | return i; |
948 | } |
949 | |
950 | // get a reg to be used as function arg |
80599a42 |
951 | static int rcache_get_tmp_arg(int arg) |
952 | { |
953 | int id = rcache_get_arg_id(arg); |
954 | reg_temp[id].type = HR_TEMP; |
955 | |
23686515 |
956 | return reg_temp[id].hreg; |
80599a42 |
957 | } |
958 | |
23686515 |
959 | // same but caches a reg. RC_GR_READ only. |
80599a42 |
960 | static int rcache_get_reg_arg(int arg, sh2_reg_e r) |
961 | { |
962 | int i, srcr, dstr, dstid; |
04092e32 |
963 | int dirty = 0, src_dirty = 0; |
80599a42 |
964 | |
965 | dstid = rcache_get_arg_id(arg); |
23686515 |
966 | dstr = reg_temp[dstid].hreg; |
80599a42 |
967 | |
968 | // maybe already statically mapped? |
23686515 |
969 | srcr = get_reg_static(r, RC_GR_READ); |
80599a42 |
970 | if (srcr != -1) |
971 | goto do_cache; |
972 | |
973 | // maybe already cached? |
974 | for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { |
23686515 |
975 | if ((reg_temp[i].type == HR_CACHED) && |
976 | reg_temp[i].greg == r) |
80599a42 |
977 | { |
23686515 |
978 | srcr = reg_temp[i].hreg; |
04092e32 |
979 | if (reg_temp[i].flags & HRF_DIRTY) |
980 | src_dirty = 1; |
80599a42 |
981 | goto do_cache; |
982 | } |
983 | } |
984 | |
985 | // must read |
986 | srcr = dstr; |
23686515 |
987 | if (gconst_check(r)) { |
988 | if (gconst_try_read(srcr, r)) |
989 | dirty = 1; |
990 | } |
991 | else |
992 | emith_ctx_read(srcr, r * 4); |
80599a42 |
993 | |
994 | do_cache: |
23686515 |
995 | if (dstr != srcr) |
80599a42 |
996 | emith_move_r_r(dstr, srcr); |
04092e32 |
997 | #if 1 |
998 | else |
999 | dirty |= src_dirty; |
1000 | |
1001 | if (dirty) |
1002 | // must clean, callers might want to modify the arg before call |
1003 | emith_ctx_write(dstr, r * 4); |
1004 | #else |
1005 | if (dirty) |
1006 | reg_temp[dstid].flags |= HRF_DIRTY; |
1007 | #endif |
80599a42 |
1008 | |
1009 | reg_temp[dstid].stamp = ++rcache_counter; |
1010 | reg_temp[dstid].type = HR_CACHED; |
23686515 |
1011 | reg_temp[dstid].greg = r; |
1012 | reg_temp[dstid].flags |= HRF_LOCKED; |
80599a42 |
1013 | return dstr; |
1014 | } |
1015 | |
c18edb34 |
1016 | static void rcache_free_tmp(int hr) |
1017 | { |
1018 | int i; |
1019 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
23686515 |
1020 | if (reg_temp[i].hreg == hr) |
c18edb34 |
1021 | break; |
1022 | |
80599a42 |
1023 | if (i == ARRAY_SIZE(reg_temp) || reg_temp[i].type != HR_TEMP) { |
c18edb34 |
1024 | printf("rcache_free_tmp fail: #%i hr %d, type %d\n", i, hr, reg_temp[i].type); |
80599a42 |
1025 | return; |
1026 | } |
1027 | |
1028 | reg_temp[i].type = HR_FREE; |
23686515 |
1029 | reg_temp[i].flags = 0; |
1030 | } |
1031 | |
1032 | static void rcache_unlock(int hr) |
1033 | { |
1034 | int i; |
1035 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
1036 | if (reg_temp[i].type == HR_CACHED && reg_temp[i].hreg == hr) |
1037 | reg_temp[i].flags &= ~HRF_LOCKED; |
1038 | } |
1039 | |
1040 | static void rcache_unlock_all(void) |
1041 | { |
1042 | int i; |
1043 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
1044 | reg_temp[i].flags &= ~HRF_LOCKED; |
c18edb34 |
1045 | } |
1046 | |
759c9d38 |
1047 | #ifdef DRC_CMP |
e9a11abb |
1048 | static u32 rcache_used_hreg_mask(void) |
6d797957 |
1049 | { |
1050 | u32 mask = 0; |
1051 | int i; |
1052 | |
1053 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
1054 | if (reg_temp[i].type != HR_FREE) |
1055 | mask |= 1 << reg_temp[i].hreg; |
1056 | |
1057 | return mask; |
1058 | } |
759c9d38 |
1059 | #endif |
6d797957 |
1060 | |
80599a42 |
1061 | static void rcache_clean(void) |
c18edb34 |
1062 | { |
1063 | int i; |
23686515 |
1064 | gconst_clean(); |
1065 | |
80599a42 |
1066 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
23686515 |
1067 | if (reg_temp[i].type == HR_CACHED && (reg_temp[i].flags & HRF_DIRTY)) { |
c18edb34 |
1068 | // writeback |
23686515 |
1069 | emith_ctx_write(reg_temp[i].hreg, reg_temp[i].greg * 4); |
1070 | reg_temp[i].flags &= ~HRF_DIRTY; |
c18edb34 |
1071 | } |
80599a42 |
1072 | } |
1073 | |
1074 | static void rcache_invalidate(void) |
1075 | { |
1076 | int i; |
23686515 |
1077 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) { |
c18edb34 |
1078 | reg_temp[i].type = HR_FREE; |
23686515 |
1079 | reg_temp[i].flags = 0; |
1080 | } |
c18edb34 |
1081 | rcache_counter = 0; |
23686515 |
1082 | |
1083 | gconst_invalidate(); |
c18edb34 |
1084 | } |
1085 | |
80599a42 |
1086 | static void rcache_flush(void) |
1087 | { |
1088 | rcache_clean(); |
1089 | rcache_invalidate(); |
1090 | } |
1091 | |
c18edb34 |
1092 | // --------------------------------------------------------------- |
1093 | |
23686515 |
1094 | static int emit_get_rbase_and_offs(u32 a, u32 *offs) |
1095 | { |
23686515 |
1096 | u32 mask = 0; |
a2b8c5a5 |
1097 | int poffs; |
23686515 |
1098 | int hr; |
1099 | |
a2b8c5a5 |
1100 | poffs = dr_ctx_get_mem_ptr(a, &mask); |
23686515 |
1101 | if (poffs == -1) |
1102 | return -1; |
1103 | |
a2b8c5a5 |
1104 | // XXX: could use some related reg |
23686515 |
1105 | hr = rcache_get_tmp(); |
1106 | emith_ctx_read(hr, poffs); |
1107 | emith_add_r_imm(hr, a & mask & ~0xff); |
1108 | *offs = a & 0xff; // XXX: ARM oriented.. |
1109 | return hr; |
1110 | } |
1111 | |
c18edb34 |
1112 | static void emit_move_r_imm32(sh2_reg_e dst, u32 imm) |
1113 | { |
23686515 |
1114 | #if PROPAGATE_CONSTANTS |
1115 | gconst_new(dst, imm); |
1116 | #else |
c18edb34 |
1117 | int hr = rcache_get_reg(dst, RC_GR_WRITE); |
1118 | emith_move_r_imm(hr, imm); |
23686515 |
1119 | #endif |
c18edb34 |
1120 | } |
1121 | |
1122 | static void emit_move_r_r(sh2_reg_e dst, sh2_reg_e src) |
1123 | { |
1124 | int hr_d = rcache_get_reg(dst, RC_GR_WRITE); |
1125 | int hr_s = rcache_get_reg(src, RC_GR_READ); |
1126 | |
1127 | emith_move_r_r(hr_d, hr_s); |
679af8a3 |
1128 | } |
1129 | |
52d759c3 |
1130 | // T must be clear, and comparison done just before this |
1131 | static void emit_or_t_if_eq(int srr) |
1132 | { |
1133 | EMITH_SJMP_START(DCOND_NE); |
1134 | emith_or_r_imm_c(DCOND_EQ, srr, T); |
1135 | EMITH_SJMP_END(DCOND_NE); |
1136 | } |
1137 | |
80599a42 |
1138 | // arguments must be ready |
1139 | // reg cache must be clean before call |
23686515 |
1140 | static int emit_memhandler_read_(int size, int ram_check) |
679af8a3 |
1141 | { |
895d1512 |
1142 | int arg1; |
1143 | #if 0 |
1144 | int arg0; |
b081408f |
1145 | host_arg2reg(arg0, 0); |
895d1512 |
1146 | #endif |
b081408f |
1147 | |
23686515 |
1148 | rcache_clean(); |
1149 | |
b081408f |
1150 | // must writeback cycles for poll detection stuff |
23686515 |
1151 | // FIXME: rm |
b081408f |
1152 | if (reg_map_g2h[SHR_SR] != -1) |
1153 | emith_ctx_write(reg_map_g2h[SHR_SR], SHR_SR * 4); |
23686515 |
1154 | |
b081408f |
1155 | arg1 = rcache_get_tmp_arg(1); |
1156 | emith_move_r_r(arg1, CONTEXT_REG); |
1157 | |
fa841b44 |
1158 | #if 0 // can't do this because of unmapped reads |
1159 | // ndef PDB_NET |
23686515 |
1160 | if (ram_check && Pico.rom == (void *)0x02000000 && Pico32xMem->sdram == (void *)0x06000000) { |
b081408f |
1161 | int tmp = rcache_get_tmp(); |
1162 | emith_and_r_r_imm(tmp, arg0, 0xfb000000); |
1163 | emith_cmp_r_imm(tmp, 0x02000000); |
1164 | switch (size) { |
1165 | case 0: // 8 |
1166 | EMITH_SJMP3_START(DCOND_NE); |
1167 | emith_eor_r_imm_c(DCOND_EQ, arg0, 1); |
1168 | emith_read8_r_r_offs_c(DCOND_EQ, arg0, arg0, 0); |
1169 | EMITH_SJMP3_MID(DCOND_NE); |
5686d931 |
1170 | emith_call_cond(DCOND_NE, sh2_drc_read8); |
b081408f |
1171 | EMITH_SJMP3_END(); |
1172 | break; |
1173 | case 1: // 16 |
1174 | EMITH_SJMP3_START(DCOND_NE); |
1175 | emith_read16_r_r_offs_c(DCOND_EQ, arg0, arg0, 0); |
1176 | EMITH_SJMP3_MID(DCOND_NE); |
5686d931 |
1177 | emith_call_cond(DCOND_NE, sh2_drc_read16); |
b081408f |
1178 | EMITH_SJMP3_END(); |
1179 | break; |
1180 | case 2: // 32 |
1181 | EMITH_SJMP3_START(DCOND_NE); |
1182 | emith_read_r_r_offs_c(DCOND_EQ, arg0, arg0, 0); |
1183 | emith_ror_c(DCOND_EQ, arg0, arg0, 16); |
1184 | EMITH_SJMP3_MID(DCOND_NE); |
5686d931 |
1185 | emith_call_cond(DCOND_NE, sh2_drc_read32); |
b081408f |
1186 | EMITH_SJMP3_END(); |
1187 | break; |
1188 | } |
1189 | } |
1190 | else |
1191 | #endif |
1192 | { |
1193 | switch (size) { |
1194 | case 0: // 8 |
5686d931 |
1195 | emith_call(sh2_drc_read8); |
b081408f |
1196 | break; |
1197 | case 1: // 16 |
5686d931 |
1198 | emith_call(sh2_drc_read16); |
b081408f |
1199 | break; |
1200 | case 2: // 32 |
5686d931 |
1201 | emith_call(sh2_drc_read32); |
b081408f |
1202 | break; |
1203 | } |
679af8a3 |
1204 | } |
80599a42 |
1205 | rcache_invalidate(); |
97e95a29 |
1206 | |
1207 | if (reg_map_g2h[SHR_SR] != -1) |
1208 | emith_ctx_read(reg_map_g2h[SHR_SR], SHR_SR * 4); |
1209 | |
80599a42 |
1210 | // assuming arg0 and retval reg matches |
1211 | return rcache_get_tmp_arg(0); |
1212 | } |
679af8a3 |
1213 | |
23686515 |
1214 | static int emit_memhandler_read(int size) |
1215 | { |
1216 | return emit_memhandler_read_(size, 1); |
1217 | } |
1218 | |
1219 | static int emit_memhandler_read_rr(sh2_reg_e rd, sh2_reg_e rs, u32 offs, int size) |
1220 | { |
1221 | int hr, hr2, ram_check = 1; |
1222 | u32 val, offs2; |
1223 | |
1224 | if (gconst_get(rs, &val)) { |
1225 | hr = emit_get_rbase_and_offs(val + offs, &offs2); |
1226 | if (hr != -1) { |
1227 | hr2 = rcache_get_reg(rd, RC_GR_WRITE); |
1228 | switch (size) { |
1229 | case 0: // 8 |
1230 | emith_read8_r_r_offs(hr2, hr, offs2 ^ 1); |
1231 | emith_sext(hr2, hr2, 8); |
1232 | break; |
1233 | case 1: // 16 |
1234 | emith_read16_r_r_offs(hr2, hr, offs2); |
1235 | emith_sext(hr2, hr2, 16); |
1236 | break; |
1237 | case 2: // 32 |
1238 | emith_read_r_r_offs(hr2, hr, offs2); |
1239 | emith_ror(hr2, hr2, 16); |
1240 | break; |
1241 | } |
1242 | rcache_free_tmp(hr); |
1243 | return hr2; |
1244 | } |
1245 | |
1246 | ram_check = 0; |
1247 | } |
1248 | |
1249 | hr = rcache_get_reg_arg(0, rs); |
1250 | if (offs != 0) |
1251 | emith_add_r_imm(hr, offs); |
1252 | hr = emit_memhandler_read_(size, ram_check); |
1253 | hr2 = rcache_get_reg(rd, RC_GR_WRITE); |
1254 | if (size != 2) { |
1255 | emith_sext(hr2, hr, (size == 1) ? 16 : 8); |
1256 | } else |
1257 | emith_move_r_r(hr2, hr); |
1258 | rcache_free_tmp(hr); |
1259 | |
1260 | return hr2; |
1261 | } |
1262 | |
001f73a0 |
1263 | static void emit_memhandler_write(int size) |
80599a42 |
1264 | { |
1265 | int ctxr; |
1266 | host_arg2reg(ctxr, 2); |
97e95a29 |
1267 | if (reg_map_g2h[SHR_SR] != -1) |
1268 | emith_ctx_write(reg_map_g2h[SHR_SR], SHR_SR * 4); |
1269 | |
6976a547 |
1270 | rcache_clean(); |
1271 | |
80599a42 |
1272 | switch (size) { |
1273 | case 0: // 8 |
e05b81fc |
1274 | // XXX: consider inlining sh2_drc_write8 |
d056bef8 |
1275 | emith_call(sh2_drc_write8); |
80599a42 |
1276 | break; |
1277 | case 1: // 16 |
d056bef8 |
1278 | emith_call(sh2_drc_write16); |
80599a42 |
1279 | break; |
1280 | case 2: // 32 |
e05b81fc |
1281 | emith_move_r_r(ctxr, CONTEXT_REG); |
5686d931 |
1282 | emith_call(sh2_drc_write32); |
80599a42 |
1283 | break; |
1284 | } |
97e95a29 |
1285 | |
d056bef8 |
1286 | rcache_invalidate(); |
97e95a29 |
1287 | if (reg_map_g2h[SHR_SR] != -1) |
1288 | emith_ctx_read(reg_map_g2h[SHR_SR], SHR_SR * 4); |
679af8a3 |
1289 | } |
80599a42 |
1290 | |
52d759c3 |
1291 | // @(Rx,Ry) |
1292 | static int emit_indirect_indexed_read(int rx, int ry, int size) |
1293 | { |
1294 | int a0, t; |
52d759c3 |
1295 | a0 = rcache_get_reg_arg(0, rx); |
1296 | t = rcache_get_reg(ry, RC_GR_READ); |
1297 | emith_add_r_r(a0, t); |
1298 | return emit_memhandler_read(size); |
1299 | } |
1300 | |
f0d7b1fa |
1301 | // read @Rn, @rm |
1302 | static void emit_indirect_read_double(u32 *rnr, u32 *rmr, int rn, int rm, int size) |
1303 | { |
1304 | int tmp; |
1305 | |
f0d7b1fa |
1306 | rcache_get_reg_arg(0, rn); |
1307 | tmp = emit_memhandler_read(size); |
1308 | emith_ctx_write(tmp, offsetof(SH2, drc_tmp)); |
1309 | rcache_free_tmp(tmp); |
1310 | tmp = rcache_get_reg(rn, RC_GR_RMW); |
1311 | emith_add_r_imm(tmp, 1 << size); |
23686515 |
1312 | rcache_unlock(tmp); |
f0d7b1fa |
1313 | |
f0d7b1fa |
1314 | rcache_get_reg_arg(0, rm); |
1315 | *rmr = emit_memhandler_read(size); |
1316 | *rnr = rcache_get_tmp(); |
1317 | emith_ctx_read(*rnr, offsetof(SH2, drc_tmp)); |
1318 | tmp = rcache_get_reg(rm, RC_GR_RMW); |
1319 | emith_add_r_imm(tmp, 1 << size); |
23686515 |
1320 | rcache_unlock(tmp); |
f0d7b1fa |
1321 | } |
1322 | |
8796b7ee |
1323 | static void emit_do_static_regs(int is_write, int tmpr) |
f0d7b1fa |
1324 | { |
8796b7ee |
1325 | int i, r, count; |
1326 | |
1327 | for (i = 0; i < ARRAY_SIZE(reg_map_g2h); i++) { |
1328 | r = reg_map_g2h[i]; |
1329 | if (r == -1) |
1330 | continue; |
1331 | |
1332 | for (count = 1; i < ARRAY_SIZE(reg_map_g2h) - 1; i++, r++) { |
1333 | if (reg_map_g2h[i + 1] != r + 1) |
1334 | break; |
1335 | count++; |
1336 | } |
1337 | |
1338 | if (count > 1) { |
1339 | // i, r point to last item |
1340 | if (is_write) |
1341 | emith_ctx_write_multiple(r - count + 1, (i - count + 1) * 4, count, tmpr); |
1342 | else |
1343 | emith_ctx_read_multiple(r - count + 1, (i - count + 1) * 4, count, tmpr); |
1344 | } else { |
1345 | if (is_write) |
1346 | emith_ctx_write(r, i * 4); |
1347 | else |
1348 | emith_ctx_read(r, i * 4); |
1349 | } |
f0d7b1fa |
1350 | } |
1351 | } |
1352 | |
e05b81fc |
1353 | static void emit_block_entry(void) |
f0d7b1fa |
1354 | { |
c25d78ee |
1355 | int arg0; |
8796b7ee |
1356 | |
e05b81fc |
1357 | host_arg2reg(arg0, 0); |
c25d78ee |
1358 | |
1359 | #if (DRC_DEBUG & 8) || defined(PDB) |
1360 | int arg1, arg2; |
e05b81fc |
1361 | host_arg2reg(arg1, 1); |
1362 | host_arg2reg(arg2, 2); |
8796b7ee |
1363 | |
5686d931 |
1364 | emit_do_static_regs(1, arg2); |
e05b81fc |
1365 | emith_move_r_r(arg1, CONTEXT_REG); |
1366 | emith_move_r_r(arg2, rcache_get_reg(SHR_SR, RC_GR_READ)); |
5686d931 |
1367 | emith_call(sh2_drc_log_entry); |
e05b81fc |
1368 | rcache_invalidate(); |
1369 | #endif |
1370 | emith_tst_r_r(arg0, arg0); |
1371 | EMITH_SJMP_START(DCOND_EQ); |
1372 | emith_jump_reg_c(DCOND_NE, arg0); |
1373 | EMITH_SJMP_END(DCOND_EQ); |
1374 | } |
8796b7ee |
1375 | |
18b94127 |
1376 | #define DELAY_SAVE_T(sr) { \ |
1377 | emith_bic_r_imm(sr, T_save); \ |
1378 | emith_tst_r_imm(sr, T); \ |
1379 | EMITH_SJMP_START(DCOND_EQ); \ |
1380 | emith_or_r_imm_c(DCOND_NE, sr, T_save); \ |
1381 | EMITH_SJMP_END(DCOND_EQ); \ |
18b94127 |
1382 | } |
e898de13 |
1383 | |
e05b81fc |
1384 | #define FLUSH_CYCLES(sr) \ |
1385 | if (cycles > 0) { \ |
1386 | emith_sub_r_imm(sr, cycles << 12); \ |
1387 | cycles = 0; \ |
1388 | } |
1389 | |
00faec9c |
1390 | static void *dr_get_pc_base(u32 pc, int is_slave); |
18b94127 |
1391 | |
e05b81fc |
1392 | static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id) |
679af8a3 |
1393 | { |
18b94127 |
1394 | u32 branch_target_pc[MAX_LOCAL_BRANCHES]; |
a2b8c5a5 |
1395 | void *branch_target_ptr[MAX_LOCAL_BRANCHES]; |
18b94127 |
1396 | int branch_target_count = 0; |
1397 | void *branch_patch_ptr[MAX_LOCAL_BRANCHES]; |
1398 | u32 branch_patch_pc[MAX_LOCAL_BRANCHES]; |
1399 | int branch_patch_count = 0; |
04092e32 |
1400 | u32 literal_addr[MAX_LITERALS]; |
1401 | int literal_addr_count = 0; |
e1553677 |
1402 | u8 op_flags[BLOCK_INSN_LIMIT]; |
18b94127 |
1403 | struct { |
18b94127 |
1404 | u32 test_irq:1; |
bf092a36 |
1405 | u32 pending_branch_direct:1; |
1406 | u32 pending_branch_indirect:1; |
51d86e55 |
1407 | u32 literals_disabled:1; |
18b94127 |
1408 | } drcf = { 0, }; |
1409 | |
bf092a36 |
1410 | // PC of current, first, last SH2 insn |
1411 | u32 pc, base_pc, end_pc; |
1412 | u32 end_literals; |
228ee974 |
1413 | void *block_entry_ptr; |
1414 | struct block_desc *block; |
23686515 |
1415 | u16 *dr_pc_base; |
bf092a36 |
1416 | struct op_data *opd; |
18b94127 |
1417 | int blkid_main = 0; |
23686515 |
1418 | int skip_op = 0; |
18b94127 |
1419 | u32 tmp, tmp2; |
1420 | int cycles; |
228ee974 |
1421 | int i, v; |
18b94127 |
1422 | int op; |
18b94127 |
1423 | |
1424 | base_pc = sh2->pc; |
51d86e55 |
1425 | drcf.literals_disabled = literal_disabled_frames != 0; |
679af8a3 |
1426 | |
23686515 |
1427 | // get base/validate PC |
1428 | dr_pc_base = dr_get_pc_base(base_pc, sh2->is_slave); |
1429 | if (dr_pc_base == (void *)-1) { |
18b94127 |
1430 | printf("invalid PC, aborting: %08x\n", base_pc); |
f4bb5d6b |
1431 | // FIXME: be less destructive |
1432 | exit(1); |
1433 | } |
1434 | |
f4bb5d6b |
1435 | tcache_ptr = tcache_ptrs[tcache_id]; |
f4bb5d6b |
1436 | |
18b94127 |
1437 | // predict tcache overflow |
f4bb5d6b |
1438 | tmp = tcache_ptr - tcache_bases[tcache_id]; |
44e6452e |
1439 | if (tmp > tcache_sizes[tcache_id] - MAX_BLOCK_SIZE) { |
fcdefcf6 |
1440 | dbg(1, "tcache %d overflow", tcache_id); |
18b94127 |
1441 | return NULL; |
44e6452e |
1442 | } |
18b94127 |
1443 | |
bf092a36 |
1444 | // initial passes to disassemble and analyze the block |
1445 | scan_block(base_pc, sh2->is_slave, op_flags, &end_pc, &end_literals); |
569420b0 |
1446 | |
51d86e55 |
1447 | if (drcf.literals_disabled) |
1448 | end_literals = end_pc; |
1449 | |
1450 | block = dr_add_block(base_pc, end_literals - base_pc, |
1451 | end_pc - base_pc, sh2->is_slave, &blkid_main); |
228ee974 |
1452 | if (block == NULL) |
569420b0 |
1453 | return NULL; |
1454 | |
228ee974 |
1455 | block_entry_ptr = tcache_ptr; |
4943816b |
1456 | dbg(2, "== %csh2 block #%d,%d %08x-%08x -> %p", sh2->is_slave ? 's' : 'm', |
228ee974 |
1457 | tcache_id, blkid_main, base_pc, end_pc, block_entry_ptr); |
18b94127 |
1458 | |
00a725a8 |
1459 | dr_link_blocks(&block->entryp[0], tcache_id); |
44e6452e |
1460 | |
00faec9c |
1461 | // collect branch_targets that don't land on delay slots |
bf092a36 |
1462 | for (pc = base_pc, i = 0; pc < end_pc; i++, pc += 2) { |
1463 | if (!(op_flags[i] & OF_BTARGET)) |
00faec9c |
1464 | continue; |
bf092a36 |
1465 | if (op_flags[i] & OF_DELAY_OP) { |
1466 | op_flags[i] &= ~OF_BTARGET; |
18b94127 |
1467 | continue; |
1468 | } |
00faec9c |
1469 | ADD_TO_ARRAY(branch_target_pc, branch_target_count, pc, break); |
e898de13 |
1470 | } |
c25d78ee |
1471 | |
c25d78ee |
1472 | if (branch_target_count > 0) { |
1473 | memset(branch_target_ptr, 0, sizeof(branch_target_ptr[0]) * branch_target_count); |
c25d78ee |
1474 | } |
679af8a3 |
1475 | |
6976a547 |
1476 | // clear stale state after compile errors |
1477 | rcache_invalidate(); |
1478 | |
18b94127 |
1479 | // ------------------------------------------------- |
bf092a36 |
1480 | // 3rd pass: actual compilation |
18b94127 |
1481 | pc = base_pc; |
bf092a36 |
1482 | cycles = 0; |
1483 | for (i = 0; pc < end_pc; i++) |
679af8a3 |
1484 | { |
bf092a36 |
1485 | u32 delay_dep_fw = 0, delay_dep_bk = 0; |
18b94127 |
1486 | u32 tmp3, tmp4, sr; |
1487 | |
bf092a36 |
1488 | opd = &ops[i]; |
23686515 |
1489 | op = FETCH_OP(pc); |
1490 | |
bf092a36 |
1491 | #if (DRC_DEBUG & 2) |
1492 | insns_compiled++; |
1493 | #endif |
1494 | #if (DRC_DEBUG & 4) |
1495 | DasmSH2(sh2dasm_buff, pc, op); |
1496 | printf("%c%08x %04x %s\n", (op_flags[i] & OF_BTARGET) ? '*' : ' ', |
1497 | pc, op, sh2dasm_buff); |
1498 | #endif |
1499 | |
1500 | if ((op_flags[i] & OF_BTARGET) || pc == base_pc) |
18b94127 |
1501 | { |
a2b8c5a5 |
1502 | if (pc != base_pc) |
18b94127 |
1503 | { |
18b94127 |
1504 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
e05b81fc |
1505 | FLUSH_CYCLES(sr); |
bf092a36 |
1506 | rcache_flush(); |
18b94127 |
1507 | |
bf092a36 |
1508 | // make block entry |
228ee974 |
1509 | v = block->entry_count; |
f0ed9e38 |
1510 | if (v < ARRAY_SIZE(block->entryp)) |
1511 | { |
1512 | struct block_entry *be_old; |
1513 | |
228ee974 |
1514 | block->entryp[v].pc = pc; |
1515 | block->entryp[v].tcache_ptr = tcache_ptr; |
00a725a8 |
1516 | block->entryp[v].links = NULL; |
228ee974 |
1517 | #if (DRC_DEBUG & 2) |
1518 | block->entryp[v].block = block; |
1519 | #endif |
f0ed9e38 |
1520 | be_old = dr_get_entry(pc, sh2->is_slave, &tcache_id); |
1521 | if (be_old != NULL) { |
1522 | dbg(1, "entry override for %08x, was %p", pc, be_old->tcache_ptr); |
1523 | kill_block_entry(be_old, tcache_id); |
1524 | } |
1525 | |
228ee974 |
1526 | add_to_hashlist(&block->entryp[v], tcache_id); |
1527 | block->entry_count++; |
04092e32 |
1528 | |
bf092a36 |
1529 | dbg(2, "-- %csh2 block #%d,%d entry %08x -> %p", |
1530 | sh2->is_slave ? 's' : 'm', tcache_id, blkid_main, |
1531 | pc, tcache_ptr); |
18b94127 |
1532 | |
00a725a8 |
1533 | // since we made a block entry, link any other blocks |
1534 | // that jump to current pc |
1535 | dr_link_blocks(&block->entryp[v], tcache_id); |
228ee974 |
1536 | } |
1537 | else { |
1538 | dbg(1, "too many entryp for block #%d,%d pc=%08x", |
1539 | tcache_id, blkid_main, pc); |
1540 | } |
bf092a36 |
1541 | |
1542 | do_host_disasm(tcache_id); |
18b94127 |
1543 | } |
bf092a36 |
1544 | |
1545 | v = find_in_array(branch_target_pc, branch_target_count, pc); |
1546 | if (v >= 0) |
1547 | branch_target_ptr[v] = tcache_ptr; |
18b94127 |
1548 | |
1549 | // must update PC |
1550 | emit_move_r_imm32(SHR_PC, pc); |
1551 | rcache_clean(); |
1552 | |
d602fd4f |
1553 | #if (DRC_DEBUG & 0x10) |
1554 | rcache_get_reg_arg(0, SHR_PC); |
1555 | tmp = emit_memhandler_read(2); |
1556 | tmp2 = rcache_get_tmp(); |
1557 | tmp3 = rcache_get_tmp(); |
1558 | emith_move_r_imm(tmp2, FETCH32(pc)); |
1559 | emith_move_r_imm(tmp3, 0); |
1560 | emith_cmp_r_r(tmp, tmp2); |
1561 | EMITH_SJMP_START(DCOND_EQ); |
1562 | emith_read_r_r_offs_c(DCOND_NE, tmp3, tmp3, 0); // crash |
1563 | EMITH_SJMP_END(DCOND_EQ); |
1564 | rcache_free_tmp(tmp); |
1565 | rcache_free_tmp(tmp2); |
1566 | rcache_free_tmp(tmp3); |
1567 | #endif |
1568 | |
18b94127 |
1569 | // check cycles |
1570 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
1571 | emith_cmp_r_imm(sr, 0); |
1572 | emith_jump_cond(DCOND_LE, sh2_drc_exit); |
23686515 |
1573 | do_host_disasm(tcache_id); |
04092e32 |
1574 | rcache_unlock_all(); |
18b94127 |
1575 | } |
e898de13 |
1576 | |
00faec9c |
1577 | #ifdef DRC_CMP |
bf092a36 |
1578 | if (!(op_flags[i] & OF_DELAY_OP)) { |
00faec9c |
1579 | emit_move_r_imm32(SHR_PC, pc); |
1580 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1581 | FLUSH_CYCLES(sr); |
6d797957 |
1582 | rcache_clean(); |
1583 | |
1584 | tmp = rcache_used_hreg_mask(); |
1585 | emith_save_caller_regs(tmp); |
00faec9c |
1586 | emit_do_static_regs(1, 0); |
1587 | emith_pass_arg_r(0, CONTEXT_REG); |
1588 | emith_call(do_sh2_cmp); |
6d797957 |
1589 | emith_restore_caller_regs(tmp); |
00faec9c |
1590 | } |
679af8a3 |
1591 | #endif |
679af8a3 |
1592 | |
1593 | pc += 2; |
679af8a3 |
1594 | |
23686515 |
1595 | if (skip_op > 0) { |
1596 | skip_op--; |
1597 | continue; |
1598 | } |
1599 | |
bf092a36 |
1600 | if (op_flags[i] & OF_DELAY_OP) |
1601 | { |
1602 | // handle delay slot dependencies |
1603 | delay_dep_fw = opd->dest & ops[i-1].source; |
1604 | delay_dep_bk = opd->source & ops[i-1].dest; |
1605 | if (delay_dep_fw & BITMASK1(SHR_T)) { |
1606 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1607 | DELAY_SAVE_T(sr); |
1608 | } |
fa841b44 |
1609 | if (delay_dep_bk & BITMASK1(SHR_PC)) { |
1610 | if (opd->op != OP_LOAD_POOL && opd->op != OP_MOVA) { |
1611 | // can only be those 2 really.. |
f8675e28 |
1612 | elprintf_sh2(sh2, EL_ANOMALY, |
1613 | "drc: illegal slot insn %04x @ %08x?", op, pc - 2); |
fa841b44 |
1614 | } |
1615 | if (opd->imm != 0) |
1616 | ; // addr already resolved somehow |
1617 | else { |
1618 | switch (ops[i-1].op) { |
1619 | case OP_BRANCH: |
1620 | emit_move_r_imm32(SHR_PC, ops[i-1].imm); |
1621 | break; |
1622 | case OP_BRANCH_CT: |
1623 | case OP_BRANCH_CF: |
1624 | tmp = rcache_get_reg(SHR_PC, RC_GR_WRITE); |
1625 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
1626 | emith_move_r_imm(tmp, pc); |
1627 | emith_tst_r_imm(sr, T); |
1628 | tmp2 = ops[i-1].op == OP_BRANCH_CT ? DCOND_NE : DCOND_EQ; |
1629 | emith_move_r_imm_c(tmp2, tmp, ops[i-1].imm); |
1630 | break; |
1631 | // case OP_BRANCH_R OP_BRANCH_RF - PC already loaded |
1632 | } |
1633 | } |
1634 | } |
1635 | //if (delay_dep_fw & ~BITMASK1(SHR_T)) |
1636 | // dbg(1, "unhandled delay_dep_fw: %x", delay_dep_fw & ~BITMASK1(SHR_T)); |
1637 | if (delay_dep_bk & ~BITMASK2(SHR_PC, SHR_PR)) |
bf092a36 |
1638 | dbg(1, "unhandled delay_dep_bk: %x", delay_dep_bk); |
1639 | } |
1640 | |
1641 | switch (opd->op) |
1642 | { |
1643 | case OP_BRANCH: |
1644 | case OP_BRANCH_CT: |
1645 | case OP_BRANCH_CF: |
1646 | if (opd->dest & BITMASK1(SHR_PR)) |
1647 | emit_move_r_imm32(SHR_PR, pc + 2); |
1648 | drcf.pending_branch_direct = 1; |
1649 | goto end_op; |
1650 | |
1651 | case OP_BRANCH_R: |
1652 | if (opd->dest & BITMASK1(SHR_PR)) |
1653 | emit_move_r_imm32(SHR_PR, pc + 2); |
1654 | emit_move_r_r(SHR_PC, opd->rm); |
1655 | drcf.pending_branch_indirect = 1; |
1656 | goto end_op; |
1657 | |
1658 | case OP_BRANCH_RF: |
1659 | tmp = rcache_get_reg(SHR_PC, RC_GR_WRITE); |
1660 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1661 | if (opd->dest & BITMASK1(SHR_PR)) { |
1662 | tmp3 = rcache_get_reg(SHR_PR, RC_GR_WRITE); |
1663 | emith_move_r_imm(tmp3, pc + 2); |
1664 | emith_add_r_r_r(tmp, tmp2, tmp3); |
1665 | } |
1666 | else { |
1667 | emith_move_r_r(tmp, tmp2); |
1668 | emith_add_r_imm(tmp, pc + 2); |
1669 | } |
1670 | drcf.pending_branch_indirect = 1; |
1671 | goto end_op; |
1672 | |
1673 | case OP_SLEEP: |
1674 | printf("TODO sleep\n"); |
1675 | goto end_op; |
1676 | |
1677 | case OP_RTE: |
1678 | // pop PC |
1679 | emit_memhandler_read_rr(SHR_PC, SHR_SP, 0, 2); |
1680 | // pop SR |
1681 | tmp = rcache_get_reg_arg(0, SHR_SP); |
1682 | emith_add_r_imm(tmp, 4); |
1683 | tmp = emit_memhandler_read(2); |
1684 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1685 | emith_write_sr(sr, tmp); |
1686 | rcache_free_tmp(tmp); |
1687 | tmp = rcache_get_reg(SHR_SP, RC_GR_RMW); |
1688 | emith_add_r_imm(tmp, 4*2); |
1689 | drcf.test_irq = 1; |
1690 | drcf.pending_branch_indirect = 1; |
fa841b44 |
1691 | goto end_op; |
1692 | |
1693 | case OP_LOAD_POOL: |
1694 | #if PROPAGATE_CONSTANTS |
51d86e55 |
1695 | if (opd->imm != 0 && opd->imm < end_literals |
fa841b44 |
1696 | && literal_addr_count < MAX_LITERALS) |
1697 | { |
1698 | ADD_TO_ARRAY(literal_addr, literal_addr_count, opd->imm,); |
1699 | if (opd->size == 2) |
1700 | tmp = FETCH32(opd->imm); |
1701 | else |
1702 | tmp = (u32)(int)(signed short)FETCH_OP(opd->imm); |
1703 | gconst_new(GET_Rn(), tmp); |
1704 | } |
1705 | else |
1706 | #endif |
1707 | { |
1708 | tmp = rcache_get_tmp_arg(0); |
1709 | if (opd->imm != 0) |
1710 | emith_move_r_imm(tmp, opd->imm); |
1711 | else { |
1712 | // have to calculate read addr from PC |
1713 | tmp2 = rcache_get_reg(SHR_PC, RC_GR_READ); |
1714 | if (opd->size == 2) { |
1715 | emith_add_r_r_imm(tmp, tmp2, 2 + (op & 0xff) * 4); |
1716 | emith_bic_r_imm(tmp, 3); |
1717 | } |
1718 | else |
1719 | emith_add_r_r_imm(tmp, tmp2, 2 + (op & 0xff) * 2); |
1720 | } |
1721 | tmp2 = emit_memhandler_read(opd->size); |
1722 | tmp3 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
1723 | if (opd->size == 2) |
1724 | emith_move_r_r(tmp3, tmp2); |
1725 | else |
1726 | emith_sext(tmp3, tmp2, 16); |
1727 | rcache_free_tmp(tmp2); |
1728 | } |
1729 | goto end_op; |
1730 | |
1731 | case OP_MOVA: |
1732 | if (opd->imm != 0) |
1733 | emit_move_r_imm32(SHR_R0, opd->imm); |
1734 | else { |
1735 | tmp = rcache_get_reg(SHR_R0, RC_GR_WRITE); |
1736 | tmp2 = rcache_get_reg(SHR_PC, RC_GR_READ); |
1737 | emith_add_r_r_imm(tmp, tmp2, 2 + (op & 0xff) * 4); |
1738 | emith_bic_r_imm(tmp, 3); |
1739 | } |
1740 | goto end_op; |
bf092a36 |
1741 | } |
1742 | |
679af8a3 |
1743 | switch ((op >> 12) & 0x0f) |
1744 | { |
3863edbd |
1745 | ///////////////////////////////////////////// |
679af8a3 |
1746 | case 0x00: |
80599a42 |
1747 | switch (op & 0x0f) |
1748 | { |
1749 | case 0x02: |
1750 | tmp = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
1751 | switch (GET_Fx()) |
1752 | { |
1753 | case 0: // STC SR,Rn 0000nnnn00000010 |
1754 | tmp2 = SHR_SR; |
1755 | break; |
1756 | case 1: // STC GBR,Rn 0000nnnn00010010 |
1757 | tmp2 = SHR_GBR; |
1758 | break; |
1759 | case 2: // STC VBR,Rn 0000nnnn00100010 |
1760 | tmp2 = SHR_VBR; |
1761 | break; |
1762 | default: |
1763 | goto default_; |
1764 | } |
ed8cf79b |
1765 | tmp3 = rcache_get_reg(tmp2, RC_GR_READ); |
1766 | emith_move_r_r(tmp, tmp3); |
1767 | if (tmp2 == SHR_SR) |
18b94127 |
1768 | emith_clear_msb(tmp, tmp, 22); // reserved bits defined by ISA as 0 |
80599a42 |
1769 | goto end_op; |
80599a42 |
1770 | case 0x04: // MOV.B Rm,@(R0,Rn) 0000nnnnmmmm0100 |
1771 | case 0x05: // MOV.W Rm,@(R0,Rn) 0000nnnnmmmm0101 |
1772 | case 0x06: // MOV.L Rm,@(R0,Rn) 0000nnnnmmmm0110 |
e05b81fc |
1773 | rcache_clean(); |
1774 | tmp = rcache_get_reg_arg(1, GET_Rm()); |
1775 | tmp2 = rcache_get_reg_arg(0, SHR_R0); |
1776 | tmp3 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1777 | emith_add_r_r(tmp2, tmp3); |
001f73a0 |
1778 | emit_memhandler_write(op & 3); |
80599a42 |
1779 | goto end_op; |
1780 | case 0x07: |
1781 | // MUL.L Rm,Rn 0000nnnnmmmm0111 |
1782 | tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1783 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1784 | tmp3 = rcache_get_reg(SHR_MACL, RC_GR_WRITE); |
1785 | emith_mul(tmp3, tmp2, tmp); |
80599a42 |
1786 | goto end_op; |
1787 | case 0x08: |
80599a42 |
1788 | switch (GET_Fx()) |
1789 | { |
1790 | case 0: // CLRT 0000000000001000 |
8796b7ee |
1791 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1792 | emith_bic_r_imm(sr, T); |
80599a42 |
1793 | break; |
1794 | case 1: // SETT 0000000000011000 |
8796b7ee |
1795 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1796 | emith_or_r_imm(sr, T); |
80599a42 |
1797 | break; |
1798 | case 2: // CLRMAC 0000000000101000 |
23686515 |
1799 | emit_move_r_imm32(SHR_MACL, 0); |
1800 | emit_move_r_imm32(SHR_MACH, 0); |
80599a42 |
1801 | break; |
1802 | default: |
1803 | goto default_; |
1804 | } |
1805 | goto end_op; |
e898de13 |
1806 | case 0x09: |
80599a42 |
1807 | switch (GET_Fx()) |
1808 | { |
1809 | case 0: // NOP 0000000000001001 |
80599a42 |
1810 | break; |
1811 | case 1: // DIV0U 0000000000011001 |
8796b7ee |
1812 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1813 | emith_bic_r_imm(sr, M|Q|T); |
80599a42 |
1814 | break; |
1815 | case 2: // MOVT Rn 0000nnnn00101001 |
8796b7ee |
1816 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
80599a42 |
1817 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
8796b7ee |
1818 | emith_clear_msb(tmp2, sr, 31); |
80599a42 |
1819 | break; |
1820 | default: |
1821 | goto default_; |
1822 | } |
1823 | goto end_op; |
1824 | case 0x0a: |
1825 | tmp = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
1826 | switch (GET_Fx()) |
1827 | { |
1828 | case 0: // STS MACH,Rn 0000nnnn00001010 |
ed8cf79b |
1829 | tmp2 = SHR_MACH; |
80599a42 |
1830 | break; |
1831 | case 1: // STS MACL,Rn 0000nnnn00011010 |
ed8cf79b |
1832 | tmp2 = SHR_MACL; |
80599a42 |
1833 | break; |
1834 | case 2: // STS PR,Rn 0000nnnn00101010 |
ed8cf79b |
1835 | tmp2 = SHR_PR; |
80599a42 |
1836 | break; |
1837 | default: |
1838 | goto default_; |
1839 | } |
ed8cf79b |
1840 | tmp2 = rcache_get_reg(tmp2, RC_GR_READ); |
80599a42 |
1841 | emith_move_r_r(tmp, tmp2); |
e898de13 |
1842 | goto end_op; |
80599a42 |
1843 | case 0x0c: // MOV.B @(R0,Rm),Rn 0000nnnnmmmm1100 |
1844 | case 0x0d: // MOV.W @(R0,Rm),Rn 0000nnnnmmmm1101 |
1845 | case 0x0e: // MOV.L @(R0,Rm),Rn 0000nnnnmmmm1110 |
52d759c3 |
1846 | tmp = emit_indirect_indexed_read(SHR_R0, GET_Rm(), op & 3); |
80599a42 |
1847 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
80599a42 |
1848 | if ((op & 3) != 2) { |
1849 | emith_sext(tmp2, tmp, (op & 1) ? 16 : 8); |
1850 | } else |
1851 | emith_move_r_r(tmp2, tmp); |
52d759c3 |
1852 | rcache_free_tmp(tmp); |
80599a42 |
1853 | goto end_op; |
1854 | case 0x0f: // MAC.L @Rm+,@Rn+ 0000nnnnmmmm1111 |
f0d7b1fa |
1855 | emit_indirect_read_double(&tmp, &tmp2, GET_Rn(), GET_Rm(), 2); |
f0d7b1fa |
1856 | tmp4 = rcache_get_reg(SHR_MACH, RC_GR_RMW); |
1857 | /* MS 16 MAC bits unused if saturated */ |
23686515 |
1858 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
8796b7ee |
1859 | emith_tst_r_imm(sr, S); |
f0d7b1fa |
1860 | EMITH_SJMP_START(DCOND_EQ); |
1861 | emith_clear_msb_c(DCOND_NE, tmp4, tmp4, 16); |
1862 | EMITH_SJMP_END(DCOND_EQ); |
23686515 |
1863 | rcache_unlock(sr); |
f0d7b1fa |
1864 | tmp3 = rcache_get_reg(SHR_MACL, RC_GR_RMW); // might evict SR |
1865 | emith_mula_s64(tmp3, tmp4, tmp, tmp2); |
f0d7b1fa |
1866 | rcache_free_tmp(tmp2); |
8796b7ee |
1867 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); // reget just in case |
1868 | emith_tst_r_imm(sr, S); |
1869 | |
1870 | EMITH_JMP_START(DCOND_EQ); |
1871 | emith_asr(tmp, tmp4, 15); |
1872 | emith_cmp_r_imm(tmp, -1); // negative overflow (0x80000000..0xffff7fff) |
1873 | EMITH_SJMP_START(DCOND_GE); |
1874 | emith_move_r_imm_c(DCOND_LT, tmp4, 0x8000); |
1875 | emith_move_r_imm_c(DCOND_LT, tmp3, 0x0000); |
1876 | EMITH_SJMP_END(DCOND_GE); |
1877 | emith_cmp_r_imm(tmp, 0); // positive overflow (0x00008000..0x7fffffff) |
1878 | EMITH_SJMP_START(DCOND_LE); |
1879 | emith_move_r_imm_c(DCOND_GT, tmp4, 0x00007fff); |
1880 | emith_move_r_imm_c(DCOND_GT, tmp3, 0xffffffff); |
1881 | EMITH_SJMP_END(DCOND_LE); |
1882 | EMITH_JMP_END(DCOND_EQ); |
1883 | |
1884 | rcache_free_tmp(tmp); |
f0d7b1fa |
1885 | goto end_op; |
80599a42 |
1886 | } |
1887 | goto default_; |
1888 | |
3863edbd |
1889 | ///////////////////////////////////////////// |
80599a42 |
1890 | case 0x01: |
1891 | // MOV.L Rm,@(disp,Rn) 0001nnnnmmmmdddd |
1892 | rcache_clean(); |
1893 | tmp = rcache_get_reg_arg(0, GET_Rn()); |
1894 | tmp2 = rcache_get_reg_arg(1, GET_Rm()); |
23686515 |
1895 | if (op & 0x0f) |
1896 | emith_add_r_imm(tmp, (op & 0x0f) * 4); |
001f73a0 |
1897 | emit_memhandler_write(2); |
80599a42 |
1898 | goto end_op; |
1899 | |
1900 | case 0x02: |
1901 | switch (op & 0x0f) |
1902 | { |
1903 | case 0x00: // MOV.B Rm,@Rn 0010nnnnmmmm0000 |
1904 | case 0x01: // MOV.W Rm,@Rn 0010nnnnmmmm0001 |
1905 | case 0x02: // MOV.L Rm,@Rn 0010nnnnmmmm0010 |
1906 | rcache_clean(); |
1907 | rcache_get_reg_arg(0, GET_Rn()); |
1908 | rcache_get_reg_arg(1, GET_Rm()); |
001f73a0 |
1909 | emit_memhandler_write(op & 3); |
80599a42 |
1910 | goto end_op; |
f2dde871 |
1911 | case 0x04: // MOV.B Rm,@-Rn 0010nnnnmmmm0100 |
1912 | case 0x05: // MOV.W Rm,@-Rn 0010nnnnmmmm0101 |
1913 | case 0x06: // MOV.L Rm,@-Rn 0010nnnnmmmm0110 |
fa841b44 |
1914 | rcache_get_reg_arg(1, GET_Rm()); // for Rm == Rn |
80599a42 |
1915 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
1916 | emith_sub_r_imm(tmp, (1 << (op & 3))); |
1917 | rcache_clean(); |
1918 | rcache_get_reg_arg(0, GET_Rn()); |
001f73a0 |
1919 | emit_memhandler_write(op & 3); |
80599a42 |
1920 | goto end_op; |
1921 | case 0x07: // DIV0S Rm,Rn 0010nnnnmmmm0111 |
8796b7ee |
1922 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
80599a42 |
1923 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1924 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
8796b7ee |
1925 | emith_bic_r_imm(sr, M|Q|T); |
80599a42 |
1926 | emith_tst_r_imm(tmp2, (1<<31)); |
1927 | EMITH_SJMP_START(DCOND_EQ); |
8796b7ee |
1928 | emith_or_r_imm_c(DCOND_NE, sr, Q); |
80599a42 |
1929 | EMITH_SJMP_END(DCOND_EQ); |
1930 | emith_tst_r_imm(tmp3, (1<<31)); |
1931 | EMITH_SJMP_START(DCOND_EQ); |
8796b7ee |
1932 | emith_or_r_imm_c(DCOND_NE, sr, M); |
80599a42 |
1933 | EMITH_SJMP_END(DCOND_EQ); |
1934 | emith_teq_r_r(tmp2, tmp3); |
1935 | EMITH_SJMP_START(DCOND_PL); |
8796b7ee |
1936 | emith_or_r_imm_c(DCOND_MI, sr, T); |
80599a42 |
1937 | EMITH_SJMP_END(DCOND_PL); |
1938 | goto end_op; |
3863edbd |
1939 | case 0x08: // TST Rm,Rn 0010nnnnmmmm1000 |
8796b7ee |
1940 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
3863edbd |
1941 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1942 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
8796b7ee |
1943 | emith_bic_r_imm(sr, T); |
3863edbd |
1944 | emith_tst_r_r(tmp2, tmp3); |
8796b7ee |
1945 | emit_or_t_if_eq(sr); |
3863edbd |
1946 | goto end_op; |
1947 | case 0x09: // AND Rm,Rn 0010nnnnmmmm1001 |
1948 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
1949 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1950 | emith_and_r_r(tmp, tmp2); |
1951 | goto end_op; |
1952 | case 0x0a: // XOR Rm,Rn 0010nnnnmmmm1010 |
1953 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
1954 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1955 | emith_eor_r_r(tmp, tmp2); |
1956 | goto end_op; |
1957 | case 0x0b: // OR Rm,Rn 0010nnnnmmmm1011 |
1958 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
1959 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1960 | emith_or_r_r(tmp, tmp2); |
1961 | goto end_op; |
1962 | case 0x0c: // CMP/STR Rm,Rn 0010nnnnmmmm1100 |
1963 | tmp = rcache_get_tmp(); |
1964 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1965 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1966 | emith_eor_r_r_r(tmp, tmp2, tmp3); |
8796b7ee |
1967 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1968 | emith_bic_r_imm(sr, T); |
3863edbd |
1969 | emith_tst_r_imm(tmp, 0x000000ff); |
fa841b44 |
1970 | emit_or_t_if_eq(sr); |
3863edbd |
1971 | emith_tst_r_imm(tmp, 0x0000ff00); |
fa841b44 |
1972 | emit_or_t_if_eq(sr); |
3863edbd |
1973 | emith_tst_r_imm(tmp, 0x00ff0000); |
fa841b44 |
1974 | emit_or_t_if_eq(sr); |
3863edbd |
1975 | emith_tst_r_imm(tmp, 0xff000000); |
fa841b44 |
1976 | emit_or_t_if_eq(sr); |
3863edbd |
1977 | rcache_free_tmp(tmp); |
1978 | goto end_op; |
1979 | case 0x0d: // XTRCT Rm,Rn 0010nnnnmmmm1101 |
1980 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
1981 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1982 | emith_lsr(tmp, tmp, 16); |
f0d7b1fa |
1983 | emith_or_r_r_lsl(tmp, tmp2, 16); |
3863edbd |
1984 | goto end_op; |
1985 | case 0x0e: // MULU.W Rm,Rn 0010nnnnmmmm1110 |
1986 | case 0x0f: // MULS.W Rm,Rn 0010nnnnmmmm1111 |
1987 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1988 | tmp = rcache_get_reg(SHR_MACL, RC_GR_WRITE); |
1989 | if (op & 1) { |
1990 | emith_sext(tmp, tmp2, 16); |
1991 | } else |
1992 | emith_clear_msb(tmp, tmp2, 16); |
1993 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1994 | tmp2 = rcache_get_tmp(); |
1995 | if (op & 1) { |
1996 | emith_sext(tmp2, tmp3, 16); |
1997 | } else |
1998 | emith_clear_msb(tmp2, tmp3, 16); |
1999 | emith_mul(tmp, tmp, tmp2); |
2000 | rcache_free_tmp(tmp2); |
3863edbd |
2001 | goto end_op; |
679af8a3 |
2002 | } |
2003 | goto default_; |
2004 | |
3863edbd |
2005 | ///////////////////////////////////////////// |
2006 | case 0x03: |
2007 | switch (op & 0x0f) |
2008 | { |
2009 | case 0x00: // CMP/EQ Rm,Rn 0011nnnnmmmm0000 |
2010 | case 0x02: // CMP/HS Rm,Rn 0011nnnnmmmm0010 |
2011 | case 0x03: // CMP/GE Rm,Rn 0011nnnnmmmm0011 |
2012 | case 0x06: // CMP/HI Rm,Rn 0011nnnnmmmm0110 |
2013 | case 0x07: // CMP/GT Rm,Rn 0011nnnnmmmm0111 |
8796b7ee |
2014 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
3863edbd |
2015 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
2016 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
8796b7ee |
2017 | emith_bic_r_imm(sr, T); |
3863edbd |
2018 | emith_cmp_r_r(tmp2, tmp3); |
2019 | switch (op & 0x07) |
2020 | { |
2021 | case 0x00: // CMP/EQ |
8796b7ee |
2022 | emit_or_t_if_eq(sr); |
3863edbd |
2023 | break; |
2024 | case 0x02: // CMP/HS |
2025 | EMITH_SJMP_START(DCOND_LO); |
8796b7ee |
2026 | emith_or_r_imm_c(DCOND_HS, sr, T); |
3863edbd |
2027 | EMITH_SJMP_END(DCOND_LO); |
2028 | break; |
2029 | case 0x03: // CMP/GE |
2030 | EMITH_SJMP_START(DCOND_LT); |
8796b7ee |
2031 | emith_or_r_imm_c(DCOND_GE, sr, T); |
3863edbd |
2032 | EMITH_SJMP_END(DCOND_LT); |
2033 | break; |
2034 | case 0x06: // CMP/HI |
2035 | EMITH_SJMP_START(DCOND_LS); |
8796b7ee |
2036 | emith_or_r_imm_c(DCOND_HI, sr, T); |
3863edbd |
2037 | EMITH_SJMP_END(DCOND_LS); |
2038 | break; |
2039 | case 0x07: // CMP/GT |
2040 | EMITH_SJMP_START(DCOND_LE); |
8796b7ee |
2041 | emith_or_r_imm_c(DCOND_GT, sr, T); |
3863edbd |
2042 | EMITH_SJMP_END(DCOND_LE); |
2043 | break; |
2044 | } |
2045 | goto end_op; |
2046 | case 0x04: // DIV1 Rm,Rn 0011nnnnmmmm0100 |
f0d7b1fa |
2047 | // Q1 = carry(Rn = (Rn << 1) | T) |
2048 | // if Q ^ M |
2049 | // Q2 = carry(Rn += Rm) |
2050 | // else |
2051 | // Q2 = carry(Rn -= Rm) |
2052 | // Q = M ^ Q1 ^ Q2 |
2053 | // T = (Q == M) = !(Q ^ M) = !(Q1 ^ Q2) |
2054 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2055 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2056 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2057 | emith_tpop_carry(sr, 0); |
f0d7b1fa |
2058 | emith_adcf_r_r(tmp2, tmp2); |
8b4f38f4 |
2059 | emith_tpush_carry(sr, 0); // keep Q1 in T for now |
f0d7b1fa |
2060 | tmp4 = rcache_get_tmp(); |
2061 | emith_and_r_r_imm(tmp4, sr, M); |
2062 | emith_eor_r_r_lsr(sr, tmp4, M_SHIFT - Q_SHIFT); // Q ^= M |
2063 | rcache_free_tmp(tmp4); |
2064 | // add or sub, invert T if carry to get Q1 ^ Q2 |
2065 | // in: (Q ^ M) passed in Q, Q1 in T |
2066 | emith_sh2_div1_step(tmp2, tmp3, sr); |
18b94127 |
2067 | emith_bic_r_imm(sr, Q); |
2068 | emith_tst_r_imm(sr, M); |
2069 | EMITH_SJMP_START(DCOND_EQ); |
2070 | emith_or_r_imm_c(DCOND_NE, sr, Q); // Q = M |
2071 | EMITH_SJMP_END(DCOND_EQ); |
2072 | emith_tst_r_imm(sr, T); |
2073 | EMITH_SJMP_START(DCOND_EQ); |
2074 | emith_eor_r_imm_c(DCOND_NE, sr, Q); // Q = M ^ Q1 ^ Q2 |
2075 | EMITH_SJMP_END(DCOND_EQ); |
2076 | emith_eor_r_imm(sr, T); // T = !(Q1 ^ Q2) |
f0d7b1fa |
2077 | goto end_op; |
3863edbd |
2078 | case 0x05: // DMULU.L Rm,Rn 0011nnnnmmmm0101 |
2079 | tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); |
2080 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2081 | tmp3 = rcache_get_reg(SHR_MACL, RC_GR_WRITE); |
2082 | tmp4 = rcache_get_reg(SHR_MACH, RC_GR_WRITE); |
2083 | emith_mul_u64(tmp3, tmp4, tmp, tmp2); |
2084 | goto end_op; |
2085 | case 0x08: // SUB Rm,Rn 0011nnnnmmmm1000 |
2086 | case 0x0c: // ADD Rm,Rn 0011nnnnmmmm1100 |
2087 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2088 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2089 | if (op & 4) { |
2090 | emith_add_r_r(tmp, tmp2); |
2091 | } else |
2092 | emith_sub_r_r(tmp, tmp2); |
2093 | goto end_op; |
2094 | case 0x0a: // SUBC Rm,Rn 0011nnnnmmmm1010 |
2095 | case 0x0e: // ADDC Rm,Rn 0011nnnnmmmm1110 |
2096 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2097 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
8796b7ee |
2098 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
3863edbd |
2099 | if (op & 4) { // adc |
8b4f38f4 |
2100 | emith_tpop_carry(sr, 0); |
3863edbd |
2101 | emith_adcf_r_r(tmp, tmp2); |
8b4f38f4 |
2102 | emith_tpush_carry(sr, 0); |
3863edbd |
2103 | } else { |
8b4f38f4 |
2104 | emith_tpop_carry(sr, 1); |
3863edbd |
2105 | emith_sbcf_r_r(tmp, tmp2); |
8b4f38f4 |
2106 | emith_tpush_carry(sr, 1); |
3863edbd |
2107 | } |
3863edbd |
2108 | goto end_op; |
2109 | case 0x0b: // SUBV Rm,Rn 0011nnnnmmmm1011 |
2110 | case 0x0f: // ADDV Rm,Rn 0011nnnnmmmm1111 |
2111 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2112 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
8796b7ee |
2113 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2114 | emith_bic_r_imm(sr, T); |
3863edbd |
2115 | if (op & 4) { |
2116 | emith_addf_r_r(tmp, tmp2); |
2117 | } else |
2118 | emith_subf_r_r(tmp, tmp2); |
2119 | EMITH_SJMP_START(DCOND_VC); |
8796b7ee |
2120 | emith_or_r_imm_c(DCOND_VS, sr, T); |
3863edbd |
2121 | EMITH_SJMP_END(DCOND_VC); |
2122 | goto end_op; |
2123 | case 0x0d: // DMULS.L Rm,Rn 0011nnnnmmmm1101 |
2124 | tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); |
2125 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2126 | tmp3 = rcache_get_reg(SHR_MACL, RC_GR_WRITE); |
2127 | tmp4 = rcache_get_reg(SHR_MACH, RC_GR_WRITE); |
2128 | emith_mul_s64(tmp3, tmp4, tmp, tmp2); |
2129 | goto end_op; |
2130 | } |
2131 | goto default_; |
2132 | |
2133 | ///////////////////////////////////////////// |
679af8a3 |
2134 | case 0x04: |
3863edbd |
2135 | switch (op & 0x0f) |
2136 | { |
c18edb34 |
2137 | case 0x00: |
3863edbd |
2138 | switch (GET_Fx()) |
2139 | { |
2140 | case 0: // SHLL Rn 0100nnnn00000000 |
2141 | case 2: // SHAL Rn 0100nnnn00100000 |
8796b7ee |
2142 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2143 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2144 | emith_tpop_carry(sr, 0); // dummy |
3863edbd |
2145 | emith_lslf(tmp, tmp, 1); |
8b4f38f4 |
2146 | emith_tpush_carry(sr, 0); |
3863edbd |
2147 | goto end_op; |
2148 | case 1: // DT Rn 0100nnnn00010000 |
8796b7ee |
2149 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
fa841b44 |
2150 | #if 0 // scheduling needs tuning |
23686515 |
2151 | if (FETCH_OP(pc) == 0x8bfd) { // BF #-2 |
2152 | if (gconst_get(GET_Rn(), &tmp)) { |
2153 | // XXX: limit burned cycles |
2154 | emit_move_r_imm32(GET_Rn(), 0); |
2155 | emith_or_r_imm(sr, T); |
a2b8c5a5 |
2156 | cycles += tmp * 4 + 1; // +1 syncs with noconst version, not sure why |
23686515 |
2157 | skip_op = 1; |
2158 | } |
2159 | else |
2160 | emith_sh2_dtbf_loop(); |
2161 | goto end_op; |
2162 | } |
00faec9c |
2163 | #endif |
23686515 |
2164 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
8796b7ee |
2165 | emith_bic_r_imm(sr, T); |
3863edbd |
2166 | emith_subf_r_imm(tmp, 1); |
8796b7ee |
2167 | emit_or_t_if_eq(sr); |
80599a42 |
2168 | goto end_op; |
2169 | } |
3863edbd |
2170 | goto default_; |
ed8cf79b |
2171 | case 0x01: |
2172 | switch (GET_Fx()) |
2173 | { |
2174 | case 0: // SHLR Rn 0100nnnn00000001 |
2175 | case 2: // SHAR Rn 0100nnnn00100001 |
8796b7ee |
2176 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2177 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2178 | emith_tpop_carry(sr, 0); // dummy |
ed8cf79b |
2179 | if (op & 0x20) { |
2180 | emith_asrf(tmp, tmp, 1); |
2181 | } else |
2182 | emith_lsrf(tmp, tmp, 1); |
8b4f38f4 |
2183 | emith_tpush_carry(sr, 0); |
ed8cf79b |
2184 | goto end_op; |
2185 | case 1: // CMP/PZ Rn 0100nnnn00010001 |
bf092a36 |
2186 | tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); |
8796b7ee |
2187 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2188 | emith_bic_r_imm(sr, T); |
ed8cf79b |
2189 | emith_cmp_r_imm(tmp, 0); |
2190 | EMITH_SJMP_START(DCOND_LT); |
8796b7ee |
2191 | emith_or_r_imm_c(DCOND_GE, sr, T); |
ed8cf79b |
2192 | EMITH_SJMP_END(DCOND_LT); |
2193 | goto end_op; |
2194 | } |
2195 | goto default_; |
2196 | case 0x02: |
2197 | case 0x03: |
2198 | switch (op & 0x3f) |
2199 | { |
f2dde871 |
2200 | case 0x02: // STS.L MACH,@-Rn 0100nnnn00000010 |
ed8cf79b |
2201 | tmp = SHR_MACH; |
2202 | break; |
f2dde871 |
2203 | case 0x12: // STS.L MACL,@-Rn 0100nnnn00010010 |
ed8cf79b |
2204 | tmp = SHR_MACL; |
2205 | break; |
f2dde871 |
2206 | case 0x22: // STS.L PR,@-Rn 0100nnnn00100010 |
ed8cf79b |
2207 | tmp = SHR_PR; |
2208 | break; |
f2dde871 |
2209 | case 0x03: // STC.L SR,@-Rn 0100nnnn00000011 |
ed8cf79b |
2210 | tmp = SHR_SR; |
2211 | break; |
f2dde871 |
2212 | case 0x13: // STC.L GBR,@-Rn 0100nnnn00010011 |
ed8cf79b |
2213 | tmp = SHR_GBR; |
2214 | break; |
f2dde871 |
2215 | case 0x23: // STC.L VBR,@-Rn 0100nnnn00100011 |
ed8cf79b |
2216 | tmp = SHR_VBR; |
2217 | break; |
2218 | default: |
e898de13 |
2219 | goto default_; |
ed8cf79b |
2220 | } |
2221 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2222 | emith_sub_r_imm(tmp2, 4); |
2223 | rcache_clean(); |
2224 | rcache_get_reg_arg(0, GET_Rn()); |
2225 | tmp3 = rcache_get_reg_arg(1, tmp); |
2226 | if (tmp == SHR_SR) |
e05b81fc |
2227 | emith_clear_msb(tmp3, tmp3, 22); // reserved bits defined by ISA as 0 |
001f73a0 |
2228 | emit_memhandler_write(2); |
ed8cf79b |
2229 | goto end_op; |
2230 | case 0x04: |
2231 | case 0x05: |
2232 | switch (op & 0x3f) |
2233 | { |
2234 | case 0x04: // ROTL Rn 0100nnnn00000100 |
2235 | case 0x05: // ROTR Rn 0100nnnn00000101 |
8796b7ee |
2236 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2237 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2238 | emith_tpop_carry(sr, 0); // dummy |
ed8cf79b |
2239 | if (op & 1) { |
2240 | emith_rorf(tmp, tmp, 1); |
2241 | } else |
2242 | emith_rolf(tmp, tmp, 1); |
8b4f38f4 |
2243 | emith_tpush_carry(sr, 0); |
ed8cf79b |
2244 | goto end_op; |
2245 | case 0x24: // ROTCL Rn 0100nnnn00100100 |
2246 | case 0x25: // ROTCR Rn 0100nnnn00100101 |
8796b7ee |
2247 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2248 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2249 | emith_tpop_carry(sr, 0); |
ed8cf79b |
2250 | if (op & 1) { |
2251 | emith_rorcf(tmp); |
2252 | } else |
2253 | emith_rolcf(tmp); |
8b4f38f4 |
2254 | emith_tpush_carry(sr, 0); |
ed8cf79b |
2255 | goto end_op; |
2256 | case 0x15: // CMP/PL Rn 0100nnnn00010101 |
8796b7ee |
2257 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2258 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2259 | emith_bic_r_imm(sr, T); |
ed8cf79b |
2260 | emith_cmp_r_imm(tmp, 0); |
2261 | EMITH_SJMP_START(DCOND_LE); |
8796b7ee |
2262 | emith_or_r_imm_c(DCOND_GT, sr, T); |
ed8cf79b |
2263 | EMITH_SJMP_END(DCOND_LE); |
2264 | goto end_op; |
2265 | } |
e898de13 |
2266 | goto default_; |
ed8cf79b |
2267 | case 0x06: |
2268 | case 0x07: |
2269 | switch (op & 0x3f) |
2270 | { |
2271 | case 0x06: // LDS.L @Rm+,MACH 0100mmmm00000110 |
2272 | tmp = SHR_MACH; |
2273 | break; |
2274 | case 0x16: // LDS.L @Rm+,MACL 0100mmmm00010110 |
2275 | tmp = SHR_MACL; |
2276 | break; |
2277 | case 0x26: // LDS.L @Rm+,PR 0100mmmm00100110 |
2278 | tmp = SHR_PR; |
2279 | break; |
2280 | case 0x07: // LDC.L @Rm+,SR 0100mmmm00000111 |
2281 | tmp = SHR_SR; |
2282 | break; |
2283 | case 0x17: // LDC.L @Rm+,GBR 0100mmmm00010111 |
2284 | tmp = SHR_GBR; |
2285 | break; |
2286 | case 0x27: // LDC.L @Rm+,VBR 0100mmmm00100111 |
2287 | tmp = SHR_VBR; |
2288 | break; |
2289 | default: |
2290 | goto default_; |
2291 | } |
ed8cf79b |
2292 | rcache_get_reg_arg(0, GET_Rn()); |
2293 | tmp2 = emit_memhandler_read(2); |
2294 | if (tmp == SHR_SR) { |
18b94127 |
2295 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
18b94127 |
2296 | emith_write_sr(sr, tmp2); |
2297 | drcf.test_irq = 1; |
ed8cf79b |
2298 | } else { |
2299 | tmp = rcache_get_reg(tmp, RC_GR_WRITE); |
2300 | emith_move_r_r(tmp, tmp2); |
2301 | } |
2302 | rcache_free_tmp(tmp2); |
2303 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2304 | emith_add_r_imm(tmp, 4); |
2305 | goto end_op; |
52d759c3 |
2306 | case 0x08: |
2307 | case 0x09: |
2308 | switch (GET_Fx()) |
2309 | { |
2310 | case 0: |
2311 | // SHLL2 Rn 0100nnnn00001000 |
2312 | // SHLR2 Rn 0100nnnn00001001 |
2313 | tmp = 2; |
2314 | break; |
2315 | case 1: |
2316 | // SHLL8 Rn 0100nnnn00011000 |
2317 | // SHLR8 Rn 0100nnnn00011001 |
2318 | tmp = 8; |
2319 | break; |
2320 | case 2: |
2321 | // SHLL16 Rn 0100nnnn00101000 |
2322 | // SHLR16 Rn 0100nnnn00101001 |
2323 | tmp = 16; |
2324 | break; |
2325 | default: |
2326 | goto default_; |
2327 | } |
2328 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2329 | if (op & 1) { |
2330 | emith_lsr(tmp2, tmp2, tmp); |
2331 | } else |
2332 | emith_lsl(tmp2, tmp2, tmp); |
2333 | goto end_op; |
2334 | case 0x0a: |
2335 | switch (GET_Fx()) |
2336 | { |
2337 | case 0: // LDS Rm,MACH 0100mmmm00001010 |
2338 | tmp2 = SHR_MACH; |
2339 | break; |
2340 | case 1: // LDS Rm,MACL 0100mmmm00011010 |
2341 | tmp2 = SHR_MACL; |
2342 | break; |
2343 | case 2: // LDS Rm,PR 0100mmmm00101010 |
2344 | tmp2 = SHR_PR; |
2345 | break; |
2346 | default: |
2347 | goto default_; |
2348 | } |
2349 | emit_move_r_r(tmp2, GET_Rn()); |
2350 | goto end_op; |
e898de13 |
2351 | case 0x0b: |
52d759c3 |
2352 | switch (GET_Fx()) |
2353 | { |
52d759c3 |
2354 | case 1: // TAS.B @Rn 0100nnnn00011011 |
2355 | // XXX: is TAS working on 32X? |
52d759c3 |
2356 | rcache_get_reg_arg(0, GET_Rn()); |
8796b7ee |
2357 | tmp = emit_memhandler_read(0); |
2358 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2359 | emith_bic_r_imm(sr, T); |
52d759c3 |
2360 | emith_cmp_r_imm(tmp, 0); |
8796b7ee |
2361 | emit_or_t_if_eq(sr); |
52d759c3 |
2362 | rcache_clean(); |
2363 | emith_or_r_imm(tmp, 0x80); |
2364 | tmp2 = rcache_get_tmp_arg(1); // assuming it differs to tmp |
2365 | emith_move_r_r(tmp2, tmp); |
2366 | rcache_free_tmp(tmp); |
2367 | rcache_get_reg_arg(0, GET_Rn()); |
001f73a0 |
2368 | emit_memhandler_write(0); |
52d759c3 |
2369 | break; |
2370 | default: |
e898de13 |
2371 | goto default_; |
52d759c3 |
2372 | } |
e898de13 |
2373 | goto end_op; |
2374 | case 0x0e: |
52d759c3 |
2375 | tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); |
2376 | switch (GET_Fx()) |
2377 | { |
2378 | case 0: // LDC Rm,SR 0100mmmm00001110 |
2379 | tmp2 = SHR_SR; |
2380 | break; |
2381 | case 1: // LDC Rm,GBR 0100mmmm00011110 |
2382 | tmp2 = SHR_GBR; |
2383 | break; |
2384 | case 2: // LDC Rm,VBR 0100mmmm00101110 |
2385 | tmp2 = SHR_VBR; |
2386 | break; |
2387 | default: |
e898de13 |
2388 | goto default_; |
52d759c3 |
2389 | } |
2390 | if (tmp2 == SHR_SR) { |
18b94127 |
2391 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
18b94127 |
2392 | emith_write_sr(sr, tmp); |
2393 | drcf.test_irq = 1; |
52d759c3 |
2394 | } else { |
2395 | tmp2 = rcache_get_reg(tmp2, RC_GR_WRITE); |
2396 | emith_move_r_r(tmp2, tmp); |
2397 | } |
2398 | goto end_op; |
2399 | case 0x0f: |
23686515 |
2400 | // MAC.W @Rm+,@Rn+ 0100nnnnmmmm1111 |
f0d7b1fa |
2401 | emit_indirect_read_double(&tmp, &tmp2, GET_Rn(), GET_Rm(), 1); |
2402 | emith_sext(tmp, tmp, 16); |
2403 | emith_sext(tmp2, tmp2, 16); |
2404 | tmp3 = rcache_get_reg(SHR_MACL, RC_GR_RMW); |
2405 | tmp4 = rcache_get_reg(SHR_MACH, RC_GR_RMW); |
2406 | emith_mula_s64(tmp3, tmp4, tmp, tmp2); |
f0d7b1fa |
2407 | rcache_free_tmp(tmp2); |
f0d7b1fa |
2408 | // XXX: MACH should be untouched when S is set? |
8796b7ee |
2409 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
2410 | emith_tst_r_imm(sr, S); |
2411 | EMITH_JMP_START(DCOND_EQ); |
2412 | |
2413 | emith_asr(tmp, tmp3, 31); |
2414 | emith_eorf_r_r(tmp, tmp4); // tmp = ((signed)macl >> 31) ^ mach |
2415 | EMITH_JMP_START(DCOND_EQ); |
2416 | emith_move_r_imm(tmp3, 0x80000000); |
2417 | emith_tst_r_r(tmp4, tmp4); |
2418 | EMITH_SJMP_START(DCOND_MI); |
2419 | emith_sub_r_imm_c(DCOND_PL, tmp3, 1); // positive |
2420 | EMITH_SJMP_END(DCOND_MI); |
2421 | EMITH_JMP_END(DCOND_EQ); |
2422 | |
2423 | EMITH_JMP_END(DCOND_EQ); |
2424 | rcache_free_tmp(tmp); |
f0d7b1fa |
2425 | goto end_op; |
679af8a3 |
2426 | } |
2427 | goto default_; |
2428 | |
52d759c3 |
2429 | ///////////////////////////////////////////// |
2430 | case 0x05: |
2431 | // MOV.L @(disp,Rm),Rn 0101nnnnmmmmdddd |
23686515 |
2432 | emit_memhandler_read_rr(GET_Rn(), GET_Rm(), (op & 0x0f) * 4, 2); |
52d759c3 |
2433 | goto end_op; |
2434 | |
2435 | ///////////////////////////////////////////// |
2436 | case 0x06: |
2437 | switch (op & 0x0f) |
2438 | { |
2439 | case 0x00: // MOV.B @Rm,Rn 0110nnnnmmmm0000 |
2440 | case 0x01: // MOV.W @Rm,Rn 0110nnnnmmmm0001 |
2441 | case 0x02: // MOV.L @Rm,Rn 0110nnnnmmmm0010 |
2442 | case 0x04: // MOV.B @Rm+,Rn 0110nnnnmmmm0100 |
2443 | case 0x05: // MOV.W @Rm+,Rn 0110nnnnmmmm0101 |
2444 | case 0x06: // MOV.L @Rm+,Rn 0110nnnnmmmm0110 |
23686515 |
2445 | emit_memhandler_read_rr(GET_Rn(), GET_Rm(), 0, op & 3); |
52d759c3 |
2446 | if ((op & 7) >= 4 && GET_Rn() != GET_Rm()) { |
2447 | tmp = rcache_get_reg(GET_Rm(), RC_GR_RMW); |
2448 | emith_add_r_imm(tmp, (1 << (op & 3))); |
2449 | } |
2450 | goto end_op; |
2451 | case 0x03: |
2452 | case 0x07 ... 0x0f: |
2453 | tmp = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2454 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
2455 | switch (op & 0x0f) |
2456 | { |
2457 | case 0x03: // MOV Rm,Rn 0110nnnnmmmm0011 |
2458 | emith_move_r_r(tmp2, tmp); |
2459 | break; |
2460 | case 0x07: // NOT Rm,Rn 0110nnnnmmmm0111 |
2461 | emith_mvn_r_r(tmp2, tmp); |
2462 | break; |
2463 | case 0x08: // SWAP.B Rm,Rn 0110nnnnmmmm1000 |
2464 | tmp3 = tmp2; |
2465 | if (tmp == tmp2) |
2466 | tmp3 = rcache_get_tmp(); |
2467 | tmp4 = rcache_get_tmp(); |
2468 | emith_lsr(tmp3, tmp, 16); |
f0d7b1fa |
2469 | emith_or_r_r_lsl(tmp3, tmp, 24); |
52d759c3 |
2470 | emith_and_r_r_imm(tmp4, tmp, 0xff00); |
f0d7b1fa |
2471 | emith_or_r_r_lsl(tmp3, tmp4, 8); |
52d759c3 |
2472 | emith_rol(tmp2, tmp3, 16); |
2473 | rcache_free_tmp(tmp4); |
2474 | if (tmp == tmp2) |
2475 | rcache_free_tmp(tmp3); |
2476 | break; |
2477 | case 0x09: // SWAP.W Rm,Rn 0110nnnnmmmm1001 |
2478 | emith_rol(tmp2, tmp, 16); |
2479 | break; |
2480 | case 0x0a: // NEGC Rm,Rn 0110nnnnmmmm1010 |
8796b7ee |
2481 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2482 | emith_tpop_carry(sr, 1); |
52d759c3 |
2483 | emith_negcf_r_r(tmp2, tmp); |
8b4f38f4 |
2484 | emith_tpush_carry(sr, 1); |
52d759c3 |
2485 | break; |
2486 | case 0x0b: // NEG Rm,Rn 0110nnnnmmmm1011 |
2487 | emith_neg_r_r(tmp2, tmp); |
2488 | break; |
2489 | case 0x0c: // EXTU.B Rm,Rn 0110nnnnmmmm1100 |
2490 | emith_clear_msb(tmp2, tmp, 24); |
2491 | break; |
2492 | case 0x0d: // EXTU.W Rm,Rn 0110nnnnmmmm1101 |
2493 | emith_clear_msb(tmp2, tmp, 16); |
2494 | break; |
2495 | case 0x0e: // EXTS.B Rm,Rn 0110nnnnmmmm1110 |
2496 | emith_sext(tmp2, tmp, 8); |
2497 | break; |
2498 | case 0x0f: // EXTS.W Rm,Rn 0110nnnnmmmm1111 |
2499 | emith_sext(tmp2, tmp, 16); |
2500 | break; |
2501 | } |
2502 | goto end_op; |
2503 | } |
2504 | goto default_; |
2505 | |
2506 | ///////////////////////////////////////////// |
2507 | case 0x07: |
2508 | // ADD #imm,Rn 0111nnnniiiiiiii |
2509 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2510 | if (op & 0x80) { // adding negative |
2511 | emith_sub_r_imm(tmp, -op & 0xff); |
2512 | } else |
2513 | emith_add_r_imm(tmp, op & 0xff); |
2514 | goto end_op; |
2515 | |
3863edbd |
2516 | ///////////////////////////////////////////// |
e898de13 |
2517 | case 0x08: |
52d759c3 |
2518 | switch (op & 0x0f00) |
2519 | { |
2520 | case 0x0000: // MOV.B R0,@(disp,Rn) 10000000nnnndddd |
2521 | case 0x0100: // MOV.W R0,@(disp,Rn) 10000001nnnndddd |
2522 | rcache_clean(); |
2523 | tmp = rcache_get_reg_arg(0, GET_Rm()); |
2524 | tmp2 = rcache_get_reg_arg(1, SHR_R0); |
2525 | tmp3 = (op & 0x100) >> 8; |
23686515 |
2526 | if (op & 0x0f) |
2527 | emith_add_r_imm(tmp, (op & 0x0f) << tmp3); |
001f73a0 |
2528 | emit_memhandler_write(tmp3); |
52d759c3 |
2529 | goto end_op; |
2530 | case 0x0400: // MOV.B @(disp,Rm),R0 10000100mmmmdddd |
2531 | case 0x0500: // MOV.W @(disp,Rm),R0 10000101mmmmdddd |
23686515 |
2532 | tmp = (op & 0x100) >> 8; |
2533 | emit_memhandler_read_rr(SHR_R0, GET_Rm(), (op & 0x0f) << tmp, tmp); |
52d759c3 |
2534 | goto end_op; |
2535 | case 0x0800: // CMP/EQ #imm,R0 10001000iiiiiiii |
2536 | // XXX: could use cmn |
2537 | tmp = rcache_get_tmp(); |
2538 | tmp2 = rcache_get_reg(0, RC_GR_READ); |
8796b7ee |
2539 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
52d759c3 |
2540 | emith_move_r_imm_s8(tmp, op & 0xff); |
8796b7ee |
2541 | emith_bic_r_imm(sr, T); |
52d759c3 |
2542 | emith_cmp_r_r(tmp2, tmp); |
8796b7ee |
2543 | emit_or_t_if_eq(sr); |
52d759c3 |
2544 | rcache_free_tmp(tmp); |
2545 | goto end_op; |
44e6452e |
2546 | } |
679af8a3 |
2547 | goto default_; |
679af8a3 |
2548 | |
52d759c3 |
2549 | ///////////////////////////////////////////// |
2550 | case 0x0c: |
2551 | switch (op & 0x0f00) |
2552 | { |
2553 | case 0x0000: // MOV.B R0,@(disp,GBR) 11000000dddddddd |
2554 | case 0x0100: // MOV.W R0,@(disp,GBR) 11000001dddddddd |
2555 | case 0x0200: // MOV.L R0,@(disp,GBR) 11000010dddddddd |
2556 | rcache_clean(); |
2557 | tmp = rcache_get_reg_arg(0, SHR_GBR); |
2558 | tmp2 = rcache_get_reg_arg(1, SHR_R0); |
2559 | tmp3 = (op & 0x300) >> 8; |
2560 | emith_add_r_imm(tmp, (op & 0xff) << tmp3); |
001f73a0 |
2561 | emit_memhandler_write(tmp3); |
52d759c3 |
2562 | goto end_op; |
2563 | case 0x0400: // MOV.B @(disp,GBR),R0 11000100dddddddd |
2564 | case 0x0500: // MOV.W @(disp,GBR),R0 11000101dddddddd |
2565 | case 0x0600: // MOV.L @(disp,GBR),R0 11000110dddddddd |
23686515 |
2566 | tmp = (op & 0x300) >> 8; |
2567 | emit_memhandler_read_rr(SHR_R0, SHR_GBR, (op & 0xff) << tmp, tmp); |
52d759c3 |
2568 | goto end_op; |
2569 | case 0x0300: // TRAPA #imm 11000011iiiiiiii |
2570 | tmp = rcache_get_reg(SHR_SP, RC_GR_RMW); |
2571 | emith_sub_r_imm(tmp, 4*2); |
52d759c3 |
2572 | // push SR |
2573 | tmp = rcache_get_reg_arg(0, SHR_SP); |
2574 | emith_add_r_imm(tmp, 4); |
2575 | tmp = rcache_get_reg_arg(1, SHR_SR); |
18b94127 |
2576 | emith_clear_msb(tmp, tmp, 22); |
001f73a0 |
2577 | emit_memhandler_write(2); |
52d759c3 |
2578 | // push PC |
2579 | rcache_get_reg_arg(0, SHR_SP); |
2580 | tmp = rcache_get_tmp_arg(1); |
2581 | emith_move_r_imm(tmp, pc); |
001f73a0 |
2582 | emit_memhandler_write(2); |
52d759c3 |
2583 | // obtain new PC |
23686515 |
2584 | emit_memhandler_read_rr(SHR_PC, SHR_VBR, (op & 0xff) * 4, 2); |
bf092a36 |
2585 | // indirect jump -> back to dispatcher |
6976a547 |
2586 | rcache_flush(); |
bf092a36 |
2587 | emith_jump(sh2_drc_dispatcher); |
44e6452e |
2588 | goto end_op; |
52d759c3 |
2589 | case 0x0800: // TST #imm,R0 11001000iiiiiiii |
8796b7ee |
2590 | tmp = rcache_get_reg(SHR_R0, RC_GR_READ); |
2591 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2592 | emith_bic_r_imm(sr, T); |
52d759c3 |
2593 | emith_tst_r_imm(tmp, op & 0xff); |
8796b7ee |
2594 | emit_or_t_if_eq(sr); |
52d759c3 |
2595 | goto end_op; |
2596 | case 0x0900: // AND #imm,R0 11001001iiiiiiii |
2597 | tmp = rcache_get_reg(SHR_R0, RC_GR_RMW); |
2598 | emith_and_r_imm(tmp, op & 0xff); |
2599 | goto end_op; |
2600 | case 0x0a00: // XOR #imm,R0 11001010iiiiiiii |
2601 | tmp = rcache_get_reg(SHR_R0, RC_GR_RMW); |
2602 | emith_eor_r_imm(tmp, op & 0xff); |
2603 | goto end_op; |
2604 | case 0x0b00: // OR #imm,R0 11001011iiiiiiii |
2605 | tmp = rcache_get_reg(SHR_R0, RC_GR_RMW); |
2606 | emith_or_r_imm(tmp, op & 0xff); |
2607 | goto end_op; |
2608 | case 0x0c00: // TST.B #imm,@(R0,GBR) 11001100iiiiiiii |
8796b7ee |
2609 | tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); |
2610 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2611 | emith_bic_r_imm(sr, T); |
52d759c3 |
2612 | emith_tst_r_imm(tmp, op & 0xff); |
8796b7ee |
2613 | emit_or_t_if_eq(sr); |
52d759c3 |
2614 | rcache_free_tmp(tmp); |
52d759c3 |
2615 | goto end_op; |
2616 | case 0x0d00: // AND.B #imm,@(R0,GBR) 11001101iiiiiiii |
2617 | tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); |
2618 | emith_and_r_imm(tmp, op & 0xff); |
8796b7ee |
2619 | goto end_rmw_op; |
52d759c3 |
2620 | case 0x0e00: // XOR.B #imm,@(R0,GBR) 11001110iiiiiiii |
2621 | tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); |
2622 | emith_eor_r_imm(tmp, op & 0xff); |
8796b7ee |
2623 | goto end_rmw_op; |
52d759c3 |
2624 | case 0x0f00: // OR.B #imm,@(R0,GBR) 11001111iiiiiiii |
2625 | tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); |
2626 | emith_or_r_imm(tmp, op & 0xff); |
8796b7ee |
2627 | end_rmw_op: |
2628 | tmp2 = rcache_get_tmp_arg(1); |
2629 | emith_move_r_r(tmp2, tmp); |
2630 | rcache_free_tmp(tmp); |
2631 | tmp3 = rcache_get_reg_arg(0, SHR_GBR); |
2632 | tmp4 = rcache_get_reg(SHR_R0, RC_GR_READ); |
2633 | emith_add_r_r(tmp3, tmp4); |
001f73a0 |
2634 | emit_memhandler_write(0); |
52d759c3 |
2635 | goto end_op; |
2636 | } |
2637 | goto default_; |
2638 | |
52d759c3 |
2639 | ///////////////////////////////////////////// |
2640 | case 0x0e: |
2641 | // MOV #imm,Rn 1110nnnniiiiiiii |
23686515 |
2642 | emit_move_r_imm32(GET_Rn(), (u32)(signed int)(signed char)op); |
52d759c3 |
2643 | goto end_op; |
2644 | |
679af8a3 |
2645 | default: |
2646 | default_: |
6a5b1b36 |
2647 | if (!(op_flags[i] & OF_B_IN_DS)) |
2648 | elprintf_sh2(sh2, EL_ANOMALY, |
2649 | "drc: illegal op %04x @ %08x", op, pc - 2); |
001f73a0 |
2650 | |
2651 | tmp = rcache_get_reg(SHR_SP, RC_GR_RMW); |
2652 | emith_sub_r_imm(tmp, 4*2); |
2653 | // push SR |
2654 | tmp = rcache_get_reg_arg(0, SHR_SP); |
2655 | emith_add_r_imm(tmp, 4); |
2656 | tmp = rcache_get_reg_arg(1, SHR_SR); |
2657 | emith_clear_msb(tmp, tmp, 22); |
2658 | emit_memhandler_write(2); |
2659 | // push PC |
2660 | rcache_get_reg_arg(0, SHR_SP); |
2661 | tmp = rcache_get_tmp_arg(1); |
6a5b1b36 |
2662 | if (drcf.pending_branch_indirect) { |
2663 | tmp2 = rcache_get_reg(SHR_PC, RC_GR_READ); |
2664 | emith_move_r_r(tmp, tmp2); |
2665 | } |
2666 | else |
2667 | emith_move_r_imm(tmp, pc - 2); |
001f73a0 |
2668 | emit_memhandler_write(2); |
2669 | // obtain new PC |
6a5b1b36 |
2670 | v = (op_flags[i] & OF_B_IN_DS) ? 6 : 4; |
2671 | emit_memhandler_read_rr(SHR_PC, SHR_VBR, v * 4, 2); |
001f73a0 |
2672 | // indirect jump -> back to dispatcher |
2673 | rcache_flush(); |
2674 | emith_jump(sh2_drc_dispatcher); |
679af8a3 |
2675 | break; |
2676 | } |
2677 | |
e898de13 |
2678 | end_op: |
23686515 |
2679 | rcache_unlock_all(); |
2680 | |
6d797957 |
2681 | cycles += opd->cycles; |
2682 | |
bf092a36 |
2683 | if (op_flags[i+1] & OF_DELAY_OP) { |
2684 | do_host_disasm(tcache_id); |
2685 | continue; |
2686 | } |
2687 | |
2688 | // test irq? |
2689 | if (drcf.test_irq && !drcf.pending_branch_direct) { |
2690 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2691 | FLUSH_CYCLES(sr); |
fa841b44 |
2692 | if (!drcf.pending_branch_indirect) |
2693 | emit_move_r_imm32(SHR_PC, pc); |
bf092a36 |
2694 | rcache_flush(); |
2695 | emith_call(sh2_drc_test_irq); |
2696 | drcf.test_irq = 0; |
2697 | } |
2698 | |
2699 | // branch handling (with/without delay) |
2700 | if (drcf.pending_branch_direct) |
44e6452e |
2701 | { |
bf092a36 |
2702 | struct op_data *opd_b = |
2703 | (op_flags[i] & OF_DELAY_OP) ? &ops[i-1] : opd; |
2704 | u32 target_pc = opd_b->imm; |
2705 | int cond = -1; |
2706 | void *target = NULL; |
44e6452e |
2707 | |
18b94127 |
2708 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
e05b81fc |
2709 | FLUSH_CYCLES(sr); |
18b94127 |
2710 | |
bf092a36 |
2711 | if (opd_b->op != OP_BRANCH) |
2712 | cond = (opd_b->op == OP_BRANCH_CF) ? DCOND_EQ : DCOND_NE; |
2713 | if (cond != -1) { |
2714 | int ctaken = (op_flags[i] & OF_DELAY_OP) ? 1 : 2; |
2715 | |
2716 | if (delay_dep_fw & BITMASK1(SHR_T)) |
2717 | emith_tst_r_imm(sr, T_save); |
2718 | else |
2719 | emith_tst_r_imm(sr, T); |
2720 | |
2721 | emith_sub_r_imm_c(cond, sr, ctaken<<12); |
2722 | } |
5f0ca48f |
2723 | rcache_clean(); |
2724 | |
5686d931 |
2725 | #if LINK_BRANCHES |
bf092a36 |
2726 | if (find_in_array(branch_target_pc, branch_target_count, target_pc) >= 0) |
2727 | { |
44e6452e |
2728 | // local branch |
2729 | // XXX: jumps back can be linked already |
bf092a36 |
2730 | if (branch_patch_count < MAX_LOCAL_BRANCHES) { |
2731 | target = tcache_ptr; |
2732 | branch_patch_pc[branch_patch_count] = target_pc; |
2733 | branch_patch_ptr[branch_patch_count] = target; |
2734 | branch_patch_count++; |
44e6452e |
2735 | } |
bf092a36 |
2736 | else |
2737 | dbg(1, "warning: too many local branches"); |
44e6452e |
2738 | } |
bf092a36 |
2739 | |
2740 | if (target == NULL) |
5686d931 |
2741 | #endif |
2742 | { |
44e6452e |
2743 | // can't resolve branch locally, make a block exit |
2744 | emit_move_r_imm32(SHR_PC, target_pc); |
2745 | rcache_clean(); |
2746 | |
00a725a8 |
2747 | target = dr_prepare_ext_branch(target_pc, sh2->is_slave, tcache_id); |
44e6452e |
2748 | if (target == NULL) |
2749 | return NULL; |
18b94127 |
2750 | } |
44e6452e |
2751 | |
bf092a36 |
2752 | if (cond != -1) |
2753 | emith_jump_cond_patchable(cond, target); |
6976a547 |
2754 | else { |
bf092a36 |
2755 | emith_jump_patchable(target); |
6976a547 |
2756 | rcache_invalidate(); |
2757 | } |
44e6452e |
2758 | |
bf092a36 |
2759 | drcf.pending_branch_direct = 0; |
2760 | } |
2761 | else if (drcf.pending_branch_indirect) { |
e05b81fc |
2762 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2763 | FLUSH_CYCLES(sr); |
2764 | rcache_flush(); |
bf092a36 |
2765 | emith_jump(sh2_drc_dispatcher); |
2766 | drcf.pending_branch_indirect = 0; |
e05b81fc |
2767 | } |
e898de13 |
2768 | |
f4bb5d6b |
2769 | do_host_disasm(tcache_id); |
44e6452e |
2770 | } |
f4bb5d6b |
2771 | |
18b94127 |
2772 | tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); |
e05b81fc |
2773 | FLUSH_CYCLES(tmp); |
18b94127 |
2774 | rcache_flush(); |
44e6452e |
2775 | |
bf092a36 |
2776 | // check the last op |
2777 | if (op_flags[i-1] & OF_DELAY_OP) |
2778 | opd = &ops[i-2]; |
2779 | else |
2780 | opd = &ops[i-1]; |
2781 | |
2782 | if (opd->op != OP_BRANCH && opd->op != OP_BRANCH_R |
2783 | && opd->op != OP_BRANCH_RF && opd->op != OP_RTE) |
2784 | { |
44e6452e |
2785 | void *target; |
bf092a36 |
2786 | |
2787 | emit_move_r_imm32(SHR_PC, pc); |
44e6452e |
2788 | rcache_flush(); |
2789 | |
bf092a36 |
2790 | target = dr_prepare_ext_branch(pc, sh2->is_slave, tcache_id); |
44e6452e |
2791 | if (target == NULL) |
2792 | return NULL; |
2793 | emith_jump_patchable(target); |
2794 | } |
18b94127 |
2795 | |
2796 | // link local branches |
2797 | for (i = 0; i < branch_patch_count; i++) { |
2798 | void *target; |
2799 | int t; |
18b94127 |
2800 | t = find_in_array(branch_target_pc, branch_target_count, branch_patch_pc[i]); |
44e6452e |
2801 | target = branch_target_ptr[t]; |
2802 | if (target == NULL) { |
fcdefcf6 |
2803 | // flush pc and go back to dispatcher (this should no longer happen) |
2804 | dbg(1, "stray branch to %08x %p", branch_patch_pc[i], tcache_ptr); |
18b94127 |
2805 | target = tcache_ptr; |
2806 | emit_move_r_imm32(SHR_PC, branch_patch_pc[i]); |
2807 | rcache_flush(); |
e05b81fc |
2808 | emith_jump(sh2_drc_dispatcher); |
18b94127 |
2809 | } |
2810 | emith_jump_patch(branch_patch_ptr[i], target); |
2811 | } |
2812 | |
f4bb5d6b |
2813 | // mark memory blocks as containing compiled code |
a2b8c5a5 |
2814 | // override any overlay blocks as they become unreachable anyway |
fa841b44 |
2815 | if ((block->addr & 0xc7fc0000) == 0x06000000 |
2816 | || (block->addr & 0xfffff000) == 0xc0000000) |
a2b8c5a5 |
2817 | { |
228ee974 |
2818 | u16 *drc_ram_blk = NULL; |
4943816b |
2819 | u32 addr, mask = 0, shift = 0; |
a2b8c5a5 |
2820 | |
2821 | if (tcache_id != 0) { |
2822 | // data array, BIOS |
2823 | drc_ram_blk = Pico32xMem->drcblk_da[sh2->is_slave]; |
2824 | shift = SH2_DRCBLK_DA_SHIFT; |
4943816b |
2825 | mask = 0xfff; |
f4bb5d6b |
2826 | } |
fa841b44 |
2827 | else { |
a2b8c5a5 |
2828 | // SDRAM |
2829 | drc_ram_blk = Pico32xMem->drcblk_ram; |
2830 | shift = SH2_DRCBLK_RAM_SHIFT; |
4943816b |
2831 | mask = 0x3ffff; |
f4bb5d6b |
2832 | } |
a2b8c5a5 |
2833 | |
228ee974 |
2834 | // mark recompiled insns |
2835 | drc_ram_blk[(base_pc & mask) >> shift] = 1; |
2836 | for (pc = base_pc; pc < end_pc; pc += 2) |
2837 | drc_ram_blk[(pc & mask) >> shift] = 1; |
04092e32 |
2838 | |
2839 | // mark literals |
2840 | for (i = 0; i < literal_addr_count; i++) { |
2841 | tmp = literal_addr[i]; |
228ee974 |
2842 | drc_ram_blk[(tmp & mask) >> shift] = 1; |
04092e32 |
2843 | } |
4943816b |
2844 | |
2845 | // add to invalidation lookup lists |
51d86e55 |
2846 | addr = base_pc & ~(INVAL_PAGE_SIZE - 1); |
2847 | for (; addr < end_literals; addr += INVAL_PAGE_SIZE) { |
2848 | i = (addr & mask) / INVAL_PAGE_SIZE; |
228ee974 |
2849 | add_to_block_list(&inval_lookup[tcache_id][i], block); |
4943816b |
2850 | } |
679af8a3 |
2851 | } |
2852 | |
f4bb5d6b |
2853 | tcache_ptrs[tcache_id] = tcache_ptr; |
2854 | |
228ee974 |
2855 | host_instructions_updated(block_entry_ptr, tcache_ptr); |
553c3eaa |
2856 | |
f4bb5d6b |
2857 | do_host_disasm(tcache_id); |
51d86e55 |
2858 | |
2859 | if (drcf.literals_disabled && literal_addr_count) |
2860 | dbg(1, "literals_disabled && literal_addr_count?"); |
fcdefcf6 |
2861 | dbg(2, " block #%d,%d tcache %d/%d, insns %d -> %d %.3f", |
4943816b |
2862 | tcache_id, blkid_main, |
f4bb5d6b |
2863 | tcache_ptr - tcache_bases[tcache_id], tcache_sizes[tcache_id], |
4943816b |
2864 | insns_compiled, host_insn_count, (float)host_insn_count / insns_compiled); |
f4bb5d6b |
2865 | if ((sh2->pc & 0xc6000000) == 0x02000000) // ROM |
fcdefcf6 |
2866 | dbg(2, " hash collisions %d/%d", hash_collisions, block_counts[tcache_id]); |
18b94127 |
2867 | /* |
2868 | printf("~~~\n"); |
228ee974 |
2869 | tcache_dsm_ptrs[tcache_id] = block_entry_ptr; |
18b94127 |
2870 | do_host_disasm(tcache_id); |
2871 | printf("~~~\n"); |
2872 | */ |
2873 | |
fcdefcf6 |
2874 | #if (DRC_DEBUG & 4) |
553c3eaa |
2875 | fflush(stdout); |
2876 | #endif |
2877 | |
228ee974 |
2878 | return block_entry_ptr; |
679af8a3 |
2879 | } |
2880 | |
e05b81fc |
2881 | static void sh2_generate_utils(void) |
679af8a3 |
2882 | { |
e05b81fc |
2883 | int arg0, arg1, arg2, sr, tmp; |
52d759c3 |
2884 | |
5686d931 |
2885 | sh2_drc_write32 = p32x_sh2_write32; |
2886 | sh2_drc_read8 = p32x_sh2_read8; |
2887 | sh2_drc_read16 = p32x_sh2_read16; |
2888 | sh2_drc_read32 = p32x_sh2_read32; |
2889 | |
e05b81fc |
2890 | host_arg2reg(arg0, 0); |
2891 | host_arg2reg(arg1, 1); |
2892 | host_arg2reg(arg2, 2); |
2893 | emith_move_r_r(arg0, arg0); // nop |
679af8a3 |
2894 | |
e05b81fc |
2895 | // sh2_drc_exit(void) |
2896 | sh2_drc_exit = (void *)tcache_ptr; |
2897 | emit_do_static_regs(1, arg2); |
2898 | emith_sh2_drc_exit(); |
679af8a3 |
2899 | |
e05b81fc |
2900 | // sh2_drc_dispatcher(void) |
2901 | sh2_drc_dispatcher = (void *)tcache_ptr; |
2902 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
2903 | emith_cmp_r_imm(sr, 0); |
2904 | emith_jump_cond(DCOND_LT, sh2_drc_exit); |
2905 | rcache_invalidate(); |
2906 | emith_ctx_read(arg0, SHR_PC * 4); |
2907 | emith_ctx_read(arg1, offsetof(SH2, is_slave)); |
2908 | emith_add_r_r_imm(arg2, CONTEXT_REG, offsetof(SH2, drc_tmp)); |
a2b8c5a5 |
2909 | emith_call(dr_lookup_block); |
e05b81fc |
2910 | emit_block_entry(); |
2911 | // lookup failed, call sh2_translate() |
2912 | emith_move_r_r(arg0, CONTEXT_REG); |
2913 | emith_ctx_read(arg1, offsetof(SH2, drc_tmp)); // tcache_id |
2914 | emith_call(sh2_translate); |
2915 | emit_block_entry(); |
2916 | // sh2_translate() failed, flush cache and retry |
2917 | emith_ctx_read(arg0, offsetof(SH2, drc_tmp)); |
2918 | emith_call(flush_tcache); |
2919 | emith_move_r_r(arg0, CONTEXT_REG); |
2920 | emith_ctx_read(arg1, offsetof(SH2, drc_tmp)); |
2921 | emith_call(sh2_translate); |
2922 | emit_block_entry(); |
2923 | // XXX: can't translate, fail |
c25d78ee |
2924 | emith_call(dr_failure); |
e05b81fc |
2925 | |
2926 | // sh2_drc_test_irq(void) |
2927 | // assumes it's called from main function (may jump to dispatcher) |
2928 | sh2_drc_test_irq = (void *)tcache_ptr; |
2929 | emith_ctx_read(arg1, offsetof(SH2, pending_level)); |
2930 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
2931 | emith_lsr(arg0, sr, I_SHIFT); |
2932 | emith_and_r_imm(arg0, 0x0f); |
2933 | emith_cmp_r_r(arg1, arg0); // pending_level > ((sr >> 4) & 0x0f)? |
2934 | EMITH_SJMP_START(DCOND_GT); |
2935 | emith_ret_c(DCOND_LE); // nope, return |
2936 | EMITH_SJMP_END(DCOND_GT); |
2937 | // adjust SP |
2938 | tmp = rcache_get_reg(SHR_SP, RC_GR_RMW); |
2939 | emith_sub_r_imm(tmp, 4*2); |
2940 | rcache_clean(); |
2941 | // push SR |
2942 | tmp = rcache_get_reg_arg(0, SHR_SP); |
2943 | emith_add_r_imm(tmp, 4); |
2944 | tmp = rcache_get_reg_arg(1, SHR_SR); |
2945 | emith_clear_msb(tmp, tmp, 22); |
2946 | emith_move_r_r(arg2, CONTEXT_REG); |
5686d931 |
2947 | emith_call(p32x_sh2_write32); // XXX: use sh2_drc_write32? |
e05b81fc |
2948 | rcache_invalidate(); |
2949 | // push PC |
2950 | rcache_get_reg_arg(0, SHR_SP); |
2951 | emith_ctx_read(arg1, SHR_PC * 4); |
2952 | emith_move_r_r(arg2, CONTEXT_REG); |
2953 | emith_call(p32x_sh2_write32); |
2954 | rcache_invalidate(); |
2955 | // update I, cycles, do callback |
2956 | emith_ctx_read(arg1, offsetof(SH2, pending_level)); |
2957 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2958 | emith_bic_r_imm(sr, I); |
2959 | emith_or_r_r_lsl(sr, arg1, I_SHIFT); |
2960 | emith_sub_r_imm(sr, 13 << 12); // at least 13 cycles |
2961 | rcache_flush(); |
2962 | emith_move_r_r(arg0, CONTEXT_REG); |
2963 | emith_call_ctx(offsetof(SH2, irq_callback)); // vector = sh2->irq_callback(sh2, level); |
2964 | // obtain new PC |
2965 | emith_lsl(arg0, arg0, 2); |
2966 | emith_ctx_read(arg1, SHR_VBR * 4); |
2967 | emith_add_r_r(arg0, arg1); |
2968 | emit_memhandler_read(2); |
2969 | emith_ctx_write(arg0, SHR_PC * 4); |
2970 | #ifdef __i386__ |
2971 | emith_add_r_imm(xSP, 4); // fix stack |
2972 | #endif |
2973 | emith_jump(sh2_drc_dispatcher); |
2974 | rcache_invalidate(); |
2975 | |
2976 | // sh2_drc_entry(SH2 *sh2) |
2977 | sh2_drc_entry = (void *)tcache_ptr; |
2978 | emith_sh2_drc_entry(); |
2979 | emith_move_r_r(CONTEXT_REG, arg0); // move ctx, arg0 |
2980 | emit_do_static_regs(0, arg2); |
2981 | emith_call(sh2_drc_test_irq); |
2982 | emith_jump(sh2_drc_dispatcher); |
2983 | |
e05b81fc |
2984 | // sh2_drc_write8(u32 a, u32 d) |
2985 | sh2_drc_write8 = (void *)tcache_ptr; |
e05b81fc |
2986 | emith_ctx_read(arg2, offsetof(SH2, write8_tab)); |
d056bef8 |
2987 | emith_sh2_wcall(arg0, arg2); |
e05b81fc |
2988 | |
2989 | // sh2_drc_write16(u32 a, u32 d) |
2990 | sh2_drc_write16 = (void *)tcache_ptr; |
e05b81fc |
2991 | emith_ctx_read(arg2, offsetof(SH2, write16_tab)); |
d056bef8 |
2992 | emith_sh2_wcall(arg0, arg2); |
e05b81fc |
2993 | |
5686d931 |
2994 | #ifdef PDB_NET |
2995 | // debug |
2996 | #define MAKE_READ_WRAPPER(func) { \ |
2997 | void *tmp = (void *)tcache_ptr; \ |
a2b8c5a5 |
2998 | emith_push_ret(); \ |
5686d931 |
2999 | emith_call(func); \ |
3000 | emith_ctx_read(arg2, offsetof(SH2, pdb_io_csum[0])); \ |
3001 | emith_addf_r_r(arg2, arg0); \ |
3002 | emith_ctx_write(arg2, offsetof(SH2, pdb_io_csum[0])); \ |
3003 | emith_ctx_read(arg2, offsetof(SH2, pdb_io_csum[1])); \ |
3004 | emith_adc_r_imm(arg2, 0x01000000); \ |
3005 | emith_ctx_write(arg2, offsetof(SH2, pdb_io_csum[1])); \ |
a2b8c5a5 |
3006 | emith_pop_and_ret(); \ |
5686d931 |
3007 | func = tmp; \ |
3008 | } |
3009 | #define MAKE_WRITE_WRAPPER(func) { \ |
3010 | void *tmp = (void *)tcache_ptr; \ |
3011 | emith_ctx_read(arg2, offsetof(SH2, pdb_io_csum[0])); \ |
3012 | emith_addf_r_r(arg2, arg1); \ |
3013 | emith_ctx_write(arg2, offsetof(SH2, pdb_io_csum[0])); \ |
3014 | emith_ctx_read(arg2, offsetof(SH2, pdb_io_csum[1])); \ |
3015 | emith_adc_r_imm(arg2, 0x01000000); \ |
3016 | emith_ctx_write(arg2, offsetof(SH2, pdb_io_csum[1])); \ |
3017 | emith_move_r_r(arg2, CONTEXT_REG); \ |
3018 | emith_jump(func); \ |
3019 | func = tmp; \ |
3020 | } |
3021 | |
3022 | MAKE_READ_WRAPPER(sh2_drc_read8); |
3023 | MAKE_READ_WRAPPER(sh2_drc_read16); |
3024 | MAKE_READ_WRAPPER(sh2_drc_read32); |
3025 | MAKE_WRITE_WRAPPER(sh2_drc_write8); |
5686d931 |
3026 | MAKE_WRITE_WRAPPER(sh2_drc_write16); |
5686d931 |
3027 | MAKE_WRITE_WRAPPER(sh2_drc_write32); |
fcdefcf6 |
3028 | #if (DRC_DEBUG & 4) |
5686d931 |
3029 | host_dasm_new_symbol(sh2_drc_read8); |
3030 | host_dasm_new_symbol(sh2_drc_read16); |
3031 | host_dasm_new_symbol(sh2_drc_read32); |
3032 | host_dasm_new_symbol(sh2_drc_write32); |
3033 | #endif |
3034 | #endif |
3035 | |
e05b81fc |
3036 | rcache_invalidate(); |
fcdefcf6 |
3037 | #if (DRC_DEBUG & 4) |
e05b81fc |
3038 | host_dasm_new_symbol(sh2_drc_entry); |
3039 | host_dasm_new_symbol(sh2_drc_dispatcher); |
3040 | host_dasm_new_symbol(sh2_drc_exit); |
3041 | host_dasm_new_symbol(sh2_drc_test_irq); |
e05b81fc |
3042 | host_dasm_new_symbol(sh2_drc_write8); |
e05b81fc |
3043 | host_dasm_new_symbol(sh2_drc_write16); |
679af8a3 |
3044 | #endif |
679af8a3 |
3045 | } |
3046 | |
f0ed9e38 |
3047 | static void sh2_smc_rm_block(struct block_desc *bd, int tcache_id, u32 ram_mask) |
f4bb5d6b |
3048 | { |
51d86e55 |
3049 | u32 i, addr, end_addr; |
04092e32 |
3050 | void *tmp; |
3051 | |
f0ed9e38 |
3052 | dbg(2, " killing block %08x-%08x-%08x, blkid %d,%d", |
51d86e55 |
3053 | bd->addr, bd->addr + bd->size_nolit, bd->addr + bd->size, |
3054 | tcache_id, bd - block_tables[tcache_id]); |
228ee974 |
3055 | if (bd->addr == 0 || bd->entry_count == 0) { |
fcdefcf6 |
3056 | dbg(1, " killing dead block!? %08x", bd->addr); |
569420b0 |
3057 | return; |
04092e32 |
3058 | } |
3059 | |
4943816b |
3060 | // remove from inval_lookup |
51d86e55 |
3061 | addr = bd->addr & ~(INVAL_PAGE_SIZE - 1); |
3062 | end_addr = bd->addr + bd->size; |
3063 | for (; addr < end_addr; addr += INVAL_PAGE_SIZE) { |
3064 | i = (addr & ram_mask) / INVAL_PAGE_SIZE; |
4943816b |
3065 | rm_from_block_list(&inval_lookup[tcache_id][i], bd); |
3066 | } |
3067 | |
04092e32 |
3068 | tmp = tcache_ptr; |
569420b0 |
3069 | |
00a725a8 |
3070 | // remove from hash table, make incoming links unresolved |
3071 | // XXX: maybe patch branches w/flush instead? |
228ee974 |
3072 | for (i = 0; i < bd->entry_count; i++) { |
3073 | rm_from_hashlist(&bd->entryp[i], tcache_id); |
3074 | |
3075 | // since we never reuse tcache space of dead blocks, |
3076 | // insert jump to dispatcher for blocks that are linked to this |
3077 | tcache_ptr = bd->entryp[i].tcache_ptr; |
fa841b44 |
3078 | emit_move_r_imm32(SHR_PC, bd->entryp[i].pc); |
228ee974 |
3079 | rcache_flush(); |
3080 | emith_jump(sh2_drc_dispatcher); |
3081 | |
3082 | host_instructions_updated(bd->entryp[i].tcache_ptr, tcache_ptr); |
00a725a8 |
3083 | |
f0ed9e38 |
3084 | unregister_links(&bd->entryp[i], tcache_id); |
228ee974 |
3085 | } |
3086 | |
04092e32 |
3087 | tcache_ptr = tmp; |
3088 | |
51d86e55 |
3089 | bd->addr = bd->size = bd->size_nolit = 0; |
228ee974 |
3090 | bd->entry_count = 0; |
a2b8c5a5 |
3091 | } |
f4bb5d6b |
3092 | |
d602fd4f |
3093 | /* |
3094 | 04205:243: == msh2 block #0,200 060017a8-060017f0 -> 0x27cb9c |
3095 | 060017a8 d11c MOV.L @($70,PC),R1 ; @$0600181c |
3096 | |
3097 | 04230:261: msh2 xsh w32 [260017a8] d225e304 |
3098 | 04230:261: msh2 smc check @260017a8 |
3099 | 04239:226: = ssh2 enter 060017a8 0x27cb9c, c=173 |
3100 | */ |
f0ed9e38 |
3101 | static void sh2_smc_rm_blocks(u32 a, u16 *drc_ram_blk, int tcache_id, u32 shift, u32 mask) |
a2b8c5a5 |
3102 | { |
4943816b |
3103 | struct block_list **blist = NULL, *entry; |
e1553677 |
3104 | struct block_desc *block; |
d602fd4f |
3105 | u32 start_addr, end_addr, taddr, i; |
3106 | u32 from = ~0, to = 0; |
3107 | |
3108 | // ignore cache-through |
3109 | a &= ~0x20000000; |
4943816b |
3110 | |
51d86e55 |
3111 | blist = &inval_lookup[tcache_id][(a & mask) / INVAL_PAGE_SIZE]; |
4943816b |
3112 | entry = *blist; |
3113 | while (entry != NULL) { |
3114 | block = entry->block; |
d602fd4f |
3115 | start_addr = block->addr & ~0x20000000; |
3116 | end_addr = start_addr + block->size; |
3117 | if (start_addr <= a && a < end_addr) { |
51d86e55 |
3118 | // get addr range that includes all removed blocks |
d602fd4f |
3119 | if (from > start_addr) |
3120 | from = start_addr; |
51d86e55 |
3121 | if (to < end_addr) |
3122 | to = end_addr; |
4943816b |
3123 | |
f0ed9e38 |
3124 | sh2_smc_rm_block(block, tcache_id, mask); |
d602fd4f |
3125 | if (a >= start_addr + block->size_nolit) |
51d86e55 |
3126 | literal_disabled_frames = 3; |
4943816b |
3127 | |
3128 | // entry lost, restart search |
3129 | entry = *blist; |
569420b0 |
3130 | continue; |
3131 | } |
4943816b |
3132 | entry = entry->next; |
04092e32 |
3133 | } |
3134 | |
51d86e55 |
3135 | if (from >= to) |
3136 | return; |
3137 | |
3138 | // update range around a to match latest state |
3139 | from &= ~(INVAL_PAGE_SIZE - 1); |
3140 | to |= (INVAL_PAGE_SIZE - 1); |
3141 | for (taddr = from; taddr < to; taddr += INVAL_PAGE_SIZE) { |
3142 | i = (taddr & mask) / INVAL_PAGE_SIZE; |
3143 | entry = inval_lookup[tcache_id][i]; |
3144 | |
3145 | for (; entry != NULL; entry = entry->next) { |
3146 | block = entry->block; |
3147 | |
d602fd4f |
3148 | start_addr = block->addr & ~0x20000000; |
3149 | if (start_addr > a) { |
3150 | if (to > start_addr) |
3151 | to = start_addr; |
51d86e55 |
3152 | } |
3153 | else { |
d602fd4f |
3154 | end_addr = start_addr + block->size; |
51d86e55 |
3155 | if (from < end_addr) |
3156 | from = end_addr; |
3157 | } |
6976a547 |
3158 | } |
3159 | } |
3160 | |
3161 | // clear code marks |
4943816b |
3162 | if (from < to) { |
3163 | u16 *p = drc_ram_blk + ((from & mask) >> shift); |
3164 | memset(p, 0, (to - from) >> (shift - 1)); |
f4bb5d6b |
3165 | } |
f4bb5d6b |
3166 | } |
3167 | |
3168 | void sh2_drc_wcheck_ram(unsigned int a, int val, int cpuid) |
3169 | { |
fcdefcf6 |
3170 | dbg(2, "%csh2 smc check @%08x", cpuid ? 's' : 'm', a); |
f0ed9e38 |
3171 | sh2_smc_rm_blocks(a, Pico32xMem->drcblk_ram, 0, SH2_DRCBLK_RAM_SHIFT, 0x3ffff); |
f4bb5d6b |
3172 | } |
3173 | |
3174 | void sh2_drc_wcheck_da(unsigned int a, int val, int cpuid) |
3175 | { |
fcdefcf6 |
3176 | dbg(2, "%csh2 smc check @%08x", cpuid ? 's' : 'm', a); |
f0ed9e38 |
3177 | sh2_smc_rm_blocks(a, Pico32xMem->drcblk_da[cpuid], |
a2b8c5a5 |
3178 | 1 + cpuid, SH2_DRCBLK_DA_SHIFT, 0xfff); |
f4bb5d6b |
3179 | } |
3180 | |
0185b677 |
3181 | int sh2_execute_drc(SH2 *sh2c, int cycles) |
679af8a3 |
3182 | { |
e05b81fc |
3183 | int ret_cycles; |
52d759c3 |
3184 | |
679af8a3 |
3185 | // cycles are kept in SHR_SR unused bits (upper 20) |
65514d85 |
3186 | // bit11 contains T saved for delay slot |
18b94127 |
3187 | // others are usual SH2 flags |
52d759c3 |
3188 | sh2c->sr &= 0x3f3; |
3189 | sh2c->sr |= cycles << 12; |
e05b81fc |
3190 | sh2_drc_entry(sh2c); |
679af8a3 |
3191 | |
e05b81fc |
3192 | // TODO: irq cycles |
3193 | ret_cycles = (signed int)sh2c->sr >> 12; |
3194 | if (ret_cycles > 0) |
fcdefcf6 |
3195 | dbg(1, "warning: drc returned with cycles: %d", ret_cycles); |
679af8a3 |
3196 | |
0219d379 |
3197 | sh2c->sr &= 0x3f3; |
0185b677 |
3198 | return ret_cycles; |
679af8a3 |
3199 | } |
3200 | |
fcdefcf6 |
3201 | #if (DRC_DEBUG & 2) |
9bb5d91c |
3202 | void block_stats(void) |
f4bb5d6b |
3203 | { |
3204 | int c, b, i, total = 0; |
3205 | |
9bb5d91c |
3206 | printf("block stats:\n"); |
f4bb5d6b |
3207 | for (b = 0; b < ARRAY_SIZE(block_tables); b++) |
3208 | for (i = 0; i < block_counts[b]; i++) |
3209 | if (block_tables[b][i].addr != 0) |
3210 | total += block_tables[b][i].refcount; |
3211 | |
3212 | for (c = 0; c < 10; c++) { |
e1553677 |
3213 | struct block_desc *blk, *maxb = NULL; |
f4bb5d6b |
3214 | int max = 0; |
3215 | for (b = 0; b < ARRAY_SIZE(block_tables); b++) { |
3216 | for (i = 0; i < block_counts[b]; i++) { |
3217 | blk = &block_tables[b][i]; |
3218 | if (blk->addr != 0 && blk->refcount > max) { |
3219 | max = blk->refcount; |
3220 | maxb = blk; |
3221 | } |
3222 | } |
3223 | } |
3224 | if (maxb == NULL) |
3225 | break; |
3226 | printf("%08x %9d %2.3f%%\n", maxb->addr, maxb->refcount, |
3227 | (double)maxb->refcount / total * 100.0); |
3228 | maxb->refcount = 0; |
3229 | } |
553c3eaa |
3230 | |
3231 | for (b = 0; b < ARRAY_SIZE(block_tables); b++) |
3232 | for (i = 0; i < block_counts[b]; i++) |
3233 | block_tables[b][i].refcount = 0; |
f4bb5d6b |
3234 | } |
553c3eaa |
3235 | #else |
3236 | #define block_stats() |
f4bb5d6b |
3237 | #endif |
3238 | |
553c3eaa |
3239 | void sh2_drc_flush_all(void) |
3240 | { |
3241 | block_stats(); |
3242 | flush_tcache(0); |
3243 | flush_tcache(1); |
3244 | flush_tcache(2); |
3245 | } |
3246 | |
23686515 |
3247 | void sh2_drc_mem_setup(SH2 *sh2) |
3248 | { |
3249 | // fill the convenience pointers |
895d1512 |
3250 | sh2->p_bios = sh2->is_slave ? Pico32xMem->sh2_rom_s.w : Pico32xMem->sh2_rom_m.w; |
f81107f5 |
3251 | sh2->p_da = sh2->data_array; |
23686515 |
3252 | sh2->p_sdram = Pico32xMem->sdram; |
3253 | sh2->p_rom = Pico.rom; |
3254 | } |
3255 | |
51d86e55 |
3256 | void sh2_drc_frame(void) |
3257 | { |
3258 | if (literal_disabled_frames > 0) |
3259 | literal_disabled_frames--; |
3260 | } |
3261 | |
679af8a3 |
3262 | int sh2_drc_init(SH2 *sh2) |
3263 | { |
44e6452e |
3264 | int i; |
7f5a3fc1 |
3265 | |
44e6452e |
3266 | if (block_tables[0] == NULL) |
3267 | { |
3268 | for (i = 0; i < TCACHE_BUFFERS; i++) { |
3269 | block_tables[i] = calloc(block_max_counts[i], sizeof(*block_tables[0])); |
3270 | if (block_tables[i] == NULL) |
3271 | goto fail; |
3272 | // max 2 block links (exits) per block |
00a725a8 |
3273 | block_link_pool[i] = calloc(block_link_pool_max_counts[i], |
3274 | sizeof(*block_link_pool[0])); |
3275 | if (block_link_pool[i] == NULL) |
44e6452e |
3276 | goto fail; |
4943816b |
3277 | |
51d86e55 |
3278 | inval_lookup[i] = calloc(ram_sizes[i] / INVAL_PAGE_SIZE, |
4943816b |
3279 | sizeof(inval_lookup[0])); |
3280 | if (inval_lookup[i] == NULL) |
3281 | goto fail; |
228ee974 |
3282 | |
3283 | hash_tables[i] = calloc(hash_table_sizes[i], sizeof(*hash_tables[0])); |
3284 | if (hash_tables[i] == NULL) |
3285 | goto fail; |
44e6452e |
3286 | } |
3287 | memset(block_counts, 0, sizeof(block_counts)); |
00a725a8 |
3288 | memset(block_link_pool_counts, 0, sizeof(block_link_pool_counts)); |
e898de13 |
3289 | |
44e6452e |
3290 | drc_cmn_init(); |
8796b7ee |
3291 | tcache_ptr = tcache; |
3292 | sh2_generate_utils(); |
a2b8c5a5 |
3293 | host_instructions_updated(tcache, tcache_ptr); |
8796b7ee |
3294 | |
8796b7ee |
3295 | tcache_bases[0] = tcache_ptrs[0] = tcache_ptr; |
44e6452e |
3296 | for (i = 1; i < ARRAY_SIZE(tcache_bases); i++) |
f4bb5d6b |
3297 | tcache_bases[i] = tcache_ptrs[i] = tcache_bases[i - 1] + tcache_sizes[i - 1]; |
f4bb5d6b |
3298 | |
fcdefcf6 |
3299 | #if (DRC_DEBUG & 4) |
f4bb5d6b |
3300 | for (i = 0; i < ARRAY_SIZE(block_tables); i++) |
3301 | tcache_dsm_ptrs[i] = tcache_bases[i]; |
8796b7ee |
3302 | // disasm the utils |
3303 | tcache_dsm_ptrs[0] = tcache; |
3304 | do_host_disasm(0); |
f4bb5d6b |
3305 | #endif |
e898de13 |
3306 | #if (DRC_DEBUG & 1) |
3307 | hash_collisions = 0; |
3308 | #endif |
679af8a3 |
3309 | } |
3310 | |
679af8a3 |
3311 | return 0; |
44e6452e |
3312 | |
3313 | fail: |
3314 | sh2_drc_finish(sh2); |
3315 | return -1; |
41397701 |
3316 | } |
3317 | |
e898de13 |
3318 | void sh2_drc_finish(SH2 *sh2) |
3319 | { |
44e6452e |
3320 | int i; |
3321 | |
228ee974 |
3322 | if (block_tables[0] == NULL) |
3323 | return; |
4943816b |
3324 | |
228ee974 |
3325 | sh2_drc_flush_all(); |
44e6452e |
3326 | |
228ee974 |
3327 | for (i = 0; i < TCACHE_BUFFERS; i++) { |
fcdefcf6 |
3328 | #if (DRC_DEBUG & 4) |
228ee974 |
3329 | printf("~~~ tcache %d\n", i); |
3330 | tcache_dsm_ptrs[i] = tcache_bases[i]; |
3331 | tcache_ptr = tcache_ptrs[i]; |
3332 | do_host_disasm(i); |
44e6452e |
3333 | #endif |
3334 | |
228ee974 |
3335 | if (block_tables[i] != NULL) |
3336 | free(block_tables[i]); |
3337 | block_tables[i] = NULL; |
00a725a8 |
3338 | if (block_link_pool[i] == NULL) |
3339 | free(block_link_pool[i]); |
3340 | block_link_pool[i] = NULL; |
4943816b |
3341 | |
228ee974 |
3342 | if (inval_lookup[i] == NULL) |
3343 | free(inval_lookup[i]); |
3344 | inval_lookup[i] = NULL; |
7f5a3fc1 |
3345 | |
228ee974 |
3346 | if (hash_tables[i] != NULL) { |
3347 | free(hash_tables[i]); |
3348 | hash_tables[i] = NULL; |
3349 | } |
e898de13 |
3350 | } |
3351 | |
228ee974 |
3352 | drc_cmn_cleanup(); |
e898de13 |
3353 | } |
cff531af |
3354 | |
00faec9c |
3355 | #endif /* DRC_SH2 */ |
3356 | |
3357 | static void *dr_get_pc_base(u32 pc, int is_slave) |
3358 | { |
3359 | void *ret = NULL; |
3360 | u32 mask = 0; |
3361 | |
3362 | if ((pc & ~0x7ff) == 0) { |
3363 | // BIOS |
895d1512 |
3364 | ret = is_slave ? Pico32xMem->sh2_rom_s.w : Pico32xMem->sh2_rom_m.w; |
00faec9c |
3365 | mask = 0x7ff; |
3366 | } |
3367 | else if ((pc & 0xfffff000) == 0xc0000000) { |
3368 | // data array |
f81107f5 |
3369 | ret = sh2s[is_slave].data_array; |
00faec9c |
3370 | mask = 0xfff; |
3371 | } |
3372 | else if ((pc & 0xc6000000) == 0x06000000) { |
3373 | // SDRAM |
3374 | ret = Pico32xMem->sdram; |
3375 | mask = 0x03ffff; |
3376 | } |
3377 | else if ((pc & 0xc6000000) == 0x02000000) { |
3378 | // ROM |
eb35ce15 |
3379 | if ((pc & 0x3fffff) < Pico.romsize) |
3380 | ret = Pico.rom; |
00faec9c |
3381 | mask = 0x3fffff; |
3382 | } |
3383 | |
3384 | if (ret == NULL) |
3385 | return (void *)-1; // NULL is valid value |
3386 | |
3387 | return (char *)ret - (pc & ~mask); |
3388 | } |
3389 | |
bf092a36 |
3390 | void scan_block(u32 base_pc, int is_slave, u8 *op_flags, u32 *end_pc_out, |
3391 | u32 *end_literals_out) |
00faec9c |
3392 | { |
3393 | u16 *dr_pc_base; |
bf092a36 |
3394 | u32 pc, op, tmp; |
3395 | u32 end_pc, end_literals = 0; |
ee5f7e99 |
3396 | u32 lowest_mova = 0; |
bf092a36 |
3397 | struct op_data *opd; |
3398 | int next_is_delay = 0; |
3399 | int end_block = 0; |
3400 | int i, i_end; |
00faec9c |
3401 | |
e1553677 |
3402 | memset(op_flags, 0, BLOCK_INSN_LIMIT); |
00faec9c |
3403 | |
3404 | dr_pc_base = dr_get_pc_base(base_pc, is_slave); |
3405 | |
bf092a36 |
3406 | // 1st pass: disassemble |
3407 | for (i = 0, pc = base_pc; ; i++, pc += 2) { |
3408 | // we need an ops[] entry after the last one initialized, |
3409 | // so do it before end_block checks |
3410 | opd = &ops[i]; |
3411 | opd->op = OP_UNHANDLED; |
3412 | opd->rm = -1; |
3413 | opd->source = opd->dest = 0; |
3414 | opd->cycles = 1; |
3415 | opd->imm = 0; |
3416 | |
3417 | if (next_is_delay) { |
3418 | op_flags[i] |= OF_DELAY_OP; |
3419 | next_is_delay = 0; |
00faec9c |
3420 | } |
bf092a36 |
3421 | else if (end_block || i >= BLOCK_INSN_LIMIT - 2) |
3422 | break; |
3423 | |
3424 | op = FETCH_OP(pc); |
3425 | switch ((op & 0xf000) >> 12) |
3426 | { |
3427 | ///////////////////////////////////////////// |
3428 | case 0x00: |
3429 | switch (op & 0x0f) |
3430 | { |
3431 | case 0x02: |
3432 | switch (GET_Fx()) |
3433 | { |
3434 | case 0: // STC SR,Rn 0000nnnn00000010 |
3435 | tmp = SHR_SR; |
3436 | break; |
3437 | case 1: // STC GBR,Rn 0000nnnn00010010 |
3438 | tmp = SHR_GBR; |
3439 | break; |
3440 | case 2: // STC VBR,Rn 0000nnnn00100010 |
3441 | tmp = SHR_VBR; |
3442 | break; |
3443 | default: |
3444 | goto undefined; |
3445 | } |
3446 | opd->op = OP_MOVE; |
3447 | opd->source = BITMASK1(tmp); |
3448 | opd->dest = BITMASK1(GET_Rn()); |
00faec9c |
3449 | break; |
bf092a36 |
3450 | case 0x03: |
3451 | CHECK_UNHANDLED_BITS(0xd0, undefined); |
3452 | // BRAF Rm 0000mmmm00100011 |
3453 | // BSRF Rm 0000mmmm00000011 |
3454 | opd->op = OP_BRANCH_RF; |
3455 | opd->rm = GET_Rn(); |
3456 | opd->source = BITMASK1(opd->rm); |
3457 | opd->dest = BITMASK1(SHR_PC); |
3458 | if (!(op & 0x20)) |
3459 | opd->dest |= BITMASK1(SHR_PR); |
3460 | opd->cycles = 2; |
3461 | next_is_delay = 1; |
3462 | end_block = 1; |
00faec9c |
3463 | break; |
bf092a36 |
3464 | case 0x04: // MOV.B Rm,@(R0,Rn) 0000nnnnmmmm0100 |
3465 | case 0x05: // MOV.W Rm,@(R0,Rn) 0000nnnnmmmm0101 |
3466 | case 0x06: // MOV.L Rm,@(R0,Rn) 0000nnnnmmmm0110 |
3467 | opd->source = BITMASK3(GET_Rm(), SHR_R0, GET_Rn()); |
3468 | break; |
3469 | case 0x07: |
3470 | // MUL.L Rm,Rn 0000nnnnmmmm0111 |
3471 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3472 | opd->dest = BITMASK1(SHR_MACL); |
3473 | opd->cycles = 2; |
3474 | break; |
3475 | case 0x08: |
3476 | CHECK_UNHANDLED_BITS(0xf00, undefined); |
3477 | switch (GET_Fx()) |
3478 | { |
3479 | case 0: // CLRT 0000000000001000 |
3480 | opd->op = OP_SETCLRT; |
3481 | opd->dest = BITMASK1(SHR_T); |
3482 | opd->imm = 0; |
3483 | break; |
3484 | case 1: // SETT 0000000000011000 |
3485 | opd->op = OP_SETCLRT; |
3486 | opd->dest = BITMASK1(SHR_T); |
3487 | opd->imm = 1; |
3488 | break; |
3489 | case 2: // CLRMAC 0000000000101000 |
3490 | opd->dest = BITMASK3(SHR_T, SHR_MACL, SHR_MACH); |
3491 | break; |
3492 | default: |
3493 | goto undefined; |
3494 | } |
3495 | break; |
3496 | case 0x09: |
3497 | switch (GET_Fx()) |
3498 | { |
3499 | case 0: // NOP 0000000000001001 |
3500 | CHECK_UNHANDLED_BITS(0xf00, undefined); |
3501 | break; |
3502 | case 1: // DIV0U 0000000000011001 |
3503 | CHECK_UNHANDLED_BITS(0xf00, undefined); |
3504 | opd->dest = BITMASK2(SHR_SR, SHR_T); |
3505 | break; |
3506 | case 2: // MOVT Rn 0000nnnn00101001 |
3507 | opd->source = BITMASK1(SHR_T); |
3508 | opd->dest = BITMASK1(GET_Rn()); |
3509 | break; |
3510 | default: |
3511 | goto undefined; |
3512 | } |
3513 | break; |
3514 | case 0x0a: |
3515 | switch (GET_Fx()) |
3516 | { |
3517 | case 0: // STS MACH,Rn 0000nnnn00001010 |
3518 | tmp = SHR_MACH; |
3519 | break; |
3520 | case 1: // STS MACL,Rn 0000nnnn00011010 |
3521 | tmp = SHR_MACL; |
3522 | break; |
3523 | case 2: // STS PR,Rn 0000nnnn00101010 |
3524 | tmp = SHR_PR; |
3525 | break; |
3526 | default: |
3527 | goto undefined; |
3528 | } |
3529 | opd->op = OP_MOVE; |
3530 | opd->source = BITMASK1(tmp); |
3531 | opd->dest = BITMASK1(GET_Rn()); |
3532 | break; |
3533 | case 0x0b: |
3534 | CHECK_UNHANDLED_BITS(0xf00, undefined); |
3535 | switch (GET_Fx()) |
3536 | { |
3537 | case 0: // RTS 0000000000001011 |
3538 | opd->op = OP_BRANCH_R; |
3539 | opd->rm = SHR_PR; |
3540 | opd->source = BITMASK1(opd->rm); |
3541 | opd->dest = BITMASK1(SHR_PC); |
3542 | opd->cycles = 2; |
3543 | next_is_delay = 1; |
3544 | end_block = 1; |
3545 | break; |
3546 | case 1: // SLEEP 0000000000011011 |
3547 | opd->op = OP_SLEEP; |
3548 | end_block = 1; |
3549 | break; |
3550 | case 2: // RTE 0000000000101011 |
3551 | opd->op = OP_RTE; |
3552 | opd->source = BITMASK1(SHR_SP); |
3553 | opd->dest = BITMASK2(SHR_SR, SHR_PC); |
3554 | opd->cycles = 4; |
3555 | next_is_delay = 1; |
3556 | end_block = 1; |
3557 | break; |
3558 | default: |
3559 | goto undefined; |
3560 | } |
3561 | break; |
3562 | case 0x0c: // MOV.B @(R0,Rm),Rn 0000nnnnmmmm1100 |
3563 | case 0x0d: // MOV.W @(R0,Rm),Rn 0000nnnnmmmm1101 |
3564 | case 0x0e: // MOV.L @(R0,Rm),Rn 0000nnnnmmmm1110 |
3565 | opd->source = BITMASK2(GET_Rm(), SHR_R0); |
3566 | opd->dest = BITMASK1(GET_Rn()); |
3567 | break; |
3568 | case 0x0f: // MAC.L @Rm+,@Rn+ 0000nnnnmmmm1111 |
3569 | opd->source = BITMASK5(GET_Rm(), GET_Rn(), SHR_SR, SHR_MACL, SHR_MACH); |
3570 | opd->dest = BITMASK4(GET_Rm(), GET_Rn(), SHR_MACL, SHR_MACH); |
3571 | opd->cycles = 3; |
3572 | break; |
3573 | default: |
3574 | goto undefined; |
3575 | } |
3576 | break; |
3577 | |
3578 | ///////////////////////////////////////////// |
3579 | case 0x01: |
3580 | // MOV.L Rm,@(disp,Rn) 0001nnnnmmmmdddd |
3581 | opd->source = BITMASK1(GET_Rm()); |
3582 | opd->source = BITMASK1(GET_Rn()); |
3583 | opd->imm = (op & 0x0f) * 4; |
3584 | break; |
3585 | |
3586 | ///////////////////////////////////////////// |
3587 | case 0x02: |
3588 | switch (op & 0x0f) |
3589 | { |
3590 | case 0x00: // MOV.B Rm,@Rn 0010nnnnmmmm0000 |
3591 | case 0x01: // MOV.W Rm,@Rn 0010nnnnmmmm0001 |
3592 | case 0x02: // MOV.L Rm,@Rn 0010nnnnmmmm0010 |
3593 | opd->source = BITMASK1(GET_Rm()); |
3594 | opd->source = BITMASK1(GET_Rn()); |
3595 | break; |
f2dde871 |
3596 | case 0x04: // MOV.B Rm,@-Rn 0010nnnnmmmm0100 |
3597 | case 0x05: // MOV.W Rm,@-Rn 0010nnnnmmmm0101 |
3598 | case 0x06: // MOV.L Rm,@-Rn 0010nnnnmmmm0110 |
bf092a36 |
3599 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3600 | opd->dest = BITMASK1(GET_Rn()); |
3601 | break; |
3602 | case 0x07: // DIV0S Rm,Rn 0010nnnnmmmm0111 |
3603 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3604 | opd->dest = BITMASK1(SHR_SR); |
3605 | break; |
3606 | case 0x08: // TST Rm,Rn 0010nnnnmmmm1000 |
3607 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3608 | opd->dest = BITMASK1(SHR_T); |
3609 | break; |
3610 | case 0x09: // AND Rm,Rn 0010nnnnmmmm1001 |
3611 | case 0x0a: // XOR Rm,Rn 0010nnnnmmmm1010 |
3612 | case 0x0b: // OR Rm,Rn 0010nnnnmmmm1011 |
3613 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3614 | opd->dest = BITMASK1(GET_Rn()); |
3615 | break; |
3616 | case 0x0c: // CMP/STR Rm,Rn 0010nnnnmmmm1100 |
3617 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3618 | opd->dest = BITMASK1(SHR_T); |
3619 | break; |
3620 | case 0x0d: // XTRCT Rm,Rn 0010nnnnmmmm1101 |
3621 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3622 | opd->dest = BITMASK1(GET_Rn()); |
3623 | break; |
3624 | case 0x0e: // MULU.W Rm,Rn 0010nnnnmmmm1110 |
3625 | case 0x0f: // MULS.W Rm,Rn 0010nnnnmmmm1111 |
3626 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3627 | opd->dest = BITMASK1(SHR_MACL); |
3628 | break; |
3629 | default: |
3630 | goto undefined; |
3631 | } |
3632 | break; |
3633 | |
3634 | ///////////////////////////////////////////// |
3635 | case 0x03: |
3636 | switch (op & 0x0f) |
3637 | { |
3638 | case 0x00: // CMP/EQ Rm,Rn 0011nnnnmmmm0000 |
3639 | case 0x02: // CMP/HS Rm,Rn 0011nnnnmmmm0010 |
3640 | case 0x03: // CMP/GE Rm,Rn 0011nnnnmmmm0011 |
3641 | case 0x06: // CMP/HI Rm,Rn 0011nnnnmmmm0110 |
3642 | case 0x07: // CMP/GT Rm,Rn 0011nnnnmmmm0111 |
3643 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3644 | opd->dest = BITMASK1(SHR_T); |
3645 | break; |
3646 | case 0x04: // DIV1 Rm,Rn 0011nnnnmmmm0100 |
3647 | opd->source = BITMASK3(GET_Rm(), GET_Rn(), SHR_SR); |
3648 | opd->dest = BITMASK2(GET_Rn(), SHR_SR); |
3649 | break; |
3650 | case 0x05: // DMULU.L Rm,Rn 0011nnnnmmmm0101 |
3651 | case 0x0d: // DMULS.L Rm,Rn 0011nnnnmmmm1101 |
3652 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3653 | opd->dest = BITMASK2(SHR_MACL, SHR_MACH); |
3654 | opd->cycles = 2; |
3655 | break; |
3656 | case 0x08: // SUB Rm,Rn 0011nnnnmmmm1000 |
3657 | case 0x0c: // ADD Rm,Rn 0011nnnnmmmm1100 |
3658 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3659 | opd->dest = BITMASK1(GET_Rn()); |
3660 | break; |
3661 | case 0x0a: // SUBC Rm,Rn 0011nnnnmmmm1010 |
3662 | case 0x0e: // ADDC Rm,Rn 0011nnnnmmmm1110 |
3663 | opd->source = BITMASK3(GET_Rm(), GET_Rn(), SHR_T); |
3664 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3665 | break; |
3666 | case 0x0b: // SUBV Rm,Rn 0011nnnnmmmm1011 |
3667 | case 0x0f: // ADDV Rm,Rn 0011nnnnmmmm1111 |
3668 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3669 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3670 | break; |
3671 | default: |
3672 | goto undefined; |
3673 | } |
3674 | break; |
3675 | |
3676 | ///////////////////////////////////////////// |
3677 | case 0x04: |
3678 | switch (op & 0x0f) |
3679 | { |
3680 | case 0x00: |
3681 | switch (GET_Fx()) |
3682 | { |
3683 | case 0: // SHLL Rn 0100nnnn00000000 |
3684 | case 2: // SHAL Rn 0100nnnn00100000 |
3685 | opd->source = BITMASK1(GET_Rn()); |
3686 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3687 | break; |
3688 | case 1: // DT Rn 0100nnnn00010000 |
3689 | opd->source = BITMASK1(GET_Rn()); |
3690 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3691 | break; |
3692 | default: |
3693 | goto undefined; |
3694 | } |
3695 | break; |
3696 | case 0x01: |
3697 | switch (GET_Fx()) |
3698 | { |
3699 | case 0: // SHLR Rn 0100nnnn00000001 |
3700 | case 2: // SHAR Rn 0100nnnn00100001 |
3701 | opd->source = BITMASK1(GET_Rn()); |
3702 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3703 | break; |
3704 | case 1: // CMP/PZ Rn 0100nnnn00010001 |
3705 | opd->source = BITMASK1(GET_Rn()); |
3706 | opd->dest = BITMASK1(SHR_T); |
3707 | break; |
3708 | default: |
3709 | goto undefined; |
3710 | } |
3711 | break; |
3712 | case 0x02: |
3713 | case 0x03: |
3714 | switch (op & 0x3f) |
3715 | { |
f2dde871 |
3716 | case 0x02: // STS.L MACH,@-Rn 0100nnnn00000010 |
bf092a36 |
3717 | tmp = SHR_MACH; |
3718 | break; |
f2dde871 |
3719 | case 0x12: // STS.L MACL,@-Rn 0100nnnn00010010 |
bf092a36 |
3720 | tmp = SHR_MACL; |
3721 | break; |
f2dde871 |
3722 | case 0x22: // STS.L PR,@-Rn 0100nnnn00100010 |
bf092a36 |
3723 | tmp = SHR_PR; |
3724 | break; |
f2dde871 |
3725 | case 0x03: // STC.L SR,@-Rn 0100nnnn00000011 |
bf092a36 |
3726 | tmp = SHR_SR; |
3727 | opd->cycles = 2; |
3728 | break; |
f2dde871 |
3729 | case 0x13: // STC.L GBR,@-Rn 0100nnnn00010011 |
bf092a36 |
3730 | tmp = SHR_GBR; |
3731 | opd->cycles = 2; |
3732 | break; |
f2dde871 |
3733 | case 0x23: // STC.L VBR,@-Rn 0100nnnn00100011 |
bf092a36 |
3734 | tmp = SHR_VBR; |
3735 | opd->cycles = 2; |
3736 | break; |
3737 | default: |
3738 | goto undefined; |
3739 | } |
3740 | opd->source = BITMASK2(GET_Rn(), tmp); |
3741 | opd->dest = BITMASK1(GET_Rn()); |
3742 | break; |
3743 | case 0x04: |
3744 | case 0x05: |
3745 | switch (op & 0x3f) |
3746 | { |
3747 | case 0x04: // ROTL Rn 0100nnnn00000100 |
3748 | case 0x05: // ROTR Rn 0100nnnn00000101 |
3749 | opd->source = BITMASK1(GET_Rn()); |
3750 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3751 | break; |
3752 | case 0x24: // ROTCL Rn 0100nnnn00100100 |
3753 | case 0x25: // ROTCR Rn 0100nnnn00100101 |
3754 | opd->source = BITMASK2(GET_Rn(), SHR_T); |
3755 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3756 | break; |
3757 | case 0x15: // CMP/PL Rn 0100nnnn00010101 |
3758 | opd->source = BITMASK1(GET_Rn()); |
3759 | opd->dest = BITMASK1(SHR_T); |
3760 | break; |
3761 | default: |
3762 | goto undefined; |
3763 | } |
3764 | break; |
3765 | case 0x06: |
3766 | case 0x07: |
3767 | switch (op & 0x3f) |
3768 | { |
3769 | case 0x06: // LDS.L @Rm+,MACH 0100mmmm00000110 |
3770 | tmp = SHR_MACH; |
3771 | break; |
3772 | case 0x16: // LDS.L @Rm+,MACL 0100mmmm00010110 |
3773 | tmp = SHR_MACL; |
3774 | break; |
3775 | case 0x26: // LDS.L @Rm+,PR 0100mmmm00100110 |
3776 | tmp = SHR_PR; |
3777 | break; |
3778 | case 0x07: // LDC.L @Rm+,SR 0100mmmm00000111 |
3779 | tmp = SHR_SR; |
3780 | opd->cycles = 3; |
3781 | break; |
3782 | case 0x17: // LDC.L @Rm+,GBR 0100mmmm00010111 |
3783 | tmp = SHR_GBR; |
3784 | opd->cycles = 3; |
3785 | break; |
3786 | case 0x27: // LDC.L @Rm+,VBR 0100mmmm00100111 |
3787 | tmp = SHR_VBR; |
3788 | opd->cycles = 3; |
3789 | break; |
3790 | default: |
3791 | goto undefined; |
3792 | } |
3793 | opd->source = BITMASK1(GET_Rn()); |
3794 | opd->dest = BITMASK2(GET_Rn(), tmp); |
3795 | break; |
3796 | case 0x08: |
3797 | case 0x09: |
3798 | switch (GET_Fx()) |
3799 | { |
3800 | case 0: |
3801 | // SHLL2 Rn 0100nnnn00001000 |
3802 | // SHLR2 Rn 0100nnnn00001001 |
3803 | break; |
3804 | case 1: |
3805 | // SHLL8 Rn 0100nnnn00011000 |
3806 | // SHLR8 Rn 0100nnnn00011001 |
3807 | break; |
3808 | case 2: |
3809 | // SHLL16 Rn 0100nnnn00101000 |
3810 | // SHLR16 Rn 0100nnnn00101001 |
3811 | break; |
3812 | default: |
3813 | goto undefined; |
3814 | } |
3815 | opd->source = BITMASK1(GET_Rn()); |
3816 | opd->dest = BITMASK1(GET_Rn()); |
3817 | break; |
3818 | case 0x0a: |
3819 | switch (GET_Fx()) |
3820 | { |
3821 | case 0: // LDS Rm,MACH 0100mmmm00001010 |
3822 | tmp = SHR_MACH; |
3823 | break; |
3824 | case 1: // LDS Rm,MACL 0100mmmm00011010 |
3825 | tmp = SHR_MACL; |
3826 | break; |
3827 | case 2: // LDS Rm,PR 0100mmmm00101010 |
3828 | tmp = SHR_PR; |
3829 | break; |
3830 | default: |
3831 | goto undefined; |
3832 | } |
3833 | opd->op = OP_MOVE; |
3834 | opd->source = BITMASK1(GET_Rn()); |
3835 | opd->dest = BITMASK1(tmp); |
3836 | break; |
3837 | case 0x0b: |
3838 | switch (GET_Fx()) |
3839 | { |
3840 | case 0: // JSR @Rm 0100mmmm00001011 |
3841 | opd->dest = BITMASK1(SHR_PR); |
3842 | case 2: // JMP @Rm 0100mmmm00101011 |
3843 | opd->op = OP_BRANCH_R; |
3844 | opd->rm = GET_Rn(); |
3845 | opd->source = BITMASK1(opd->rm); |
3846 | opd->dest |= BITMASK1(SHR_PC); |
3847 | opd->cycles = 2; |
3848 | next_is_delay = 1; |
3849 | end_block = 1; |
3850 | break; |
3851 | case 1: // TAS.B @Rn 0100nnnn00011011 |
3852 | opd->source = BITMASK1(GET_Rn()); |
3853 | opd->dest = BITMASK1(SHR_T); |
3854 | opd->cycles = 4; |
3855 | break; |
3856 | default: |
3857 | goto undefined; |
3858 | } |
3859 | break; |
3860 | case 0x0e: |
3861 | switch (GET_Fx()) |
3862 | { |
3863 | case 0: // LDC Rm,SR 0100mmmm00001110 |
3864 | tmp = SHR_SR; |
3865 | break; |
3866 | case 1: // LDC Rm,GBR 0100mmmm00011110 |
3867 | tmp = SHR_GBR; |
3868 | break; |
3869 | case 2: // LDC Rm,VBR 0100mmmm00101110 |
3870 | tmp = SHR_VBR; |
3871 | break; |
3872 | default: |
3873 | goto undefined; |
3874 | } |
3875 | opd->op = OP_MOVE; |
3876 | opd->source = BITMASK1(GET_Rn()); |
3877 | opd->dest = BITMASK1(tmp); |
3878 | break; |
3879 | case 0x0f: |
3880 | // MAC.W @Rm+,@Rn+ 0100nnnnmmmm1111 |
3881 | opd->source = BITMASK5(GET_Rm(), GET_Rn(), SHR_SR, SHR_MACL, SHR_MACH); |
3882 | opd->dest = BITMASK4(GET_Rm(), GET_Rn(), SHR_MACL, SHR_MACH); |
3883 | opd->cycles = 3; |
3884 | break; |
3885 | default: |
3886 | goto undefined; |
3887 | } |
3888 | break; |
3889 | |
3890 | ///////////////////////////////////////////// |
3891 | case 0x05: |
3892 | // MOV.L @(disp,Rm),Rn 0101nnnnmmmmdddd |
3893 | opd->source = BITMASK1(GET_Rm()); |
3894 | opd->dest = BITMASK1(GET_Rn()); |
3895 | opd->imm = (op & 0x0f) * 4; |
3896 | break; |
3897 | |
3898 | ///////////////////////////////////////////// |
3899 | case 0x06: |
3900 | switch (op & 0x0f) |
3901 | { |
3902 | case 0x04: // MOV.B @Rm+,Rn 0110nnnnmmmm0100 |
3903 | case 0x05: // MOV.W @Rm+,Rn 0110nnnnmmmm0101 |
3904 | case 0x06: // MOV.L @Rm+,Rn 0110nnnnmmmm0110 |
3905 | opd->dest = BITMASK1(GET_Rm()); |
3906 | case 0x00: // MOV.B @Rm,Rn 0110nnnnmmmm0000 |
3907 | case 0x01: // MOV.W @Rm,Rn 0110nnnnmmmm0001 |
3908 | case 0x02: // MOV.L @Rm,Rn 0110nnnnmmmm0010 |
3909 | opd->source = BITMASK1(GET_Rm()); |
3910 | opd->dest |= BITMASK1(GET_Rn()); |
3911 | break; |
fa841b44 |
3912 | case 0x0a: // NEGC Rm,Rn 0110nnnnmmmm1010 |
3913 | opd->source = BITMASK2(GET_Rm(), SHR_T); |
3914 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3915 | break; |
bf092a36 |
3916 | case 0x03: // MOV Rm,Rn 0110nnnnmmmm0011 |
3917 | opd->op = OP_MOVE; |
3918 | goto arith_rmrn; |
3919 | case 0x07: // NOT Rm,Rn 0110nnnnmmmm0111 |
3920 | case 0x08: // SWAP.B Rm,Rn 0110nnnnmmmm1000 |
3921 | case 0x09: // SWAP.W Rm,Rn 0110nnnnmmmm1001 |
bf092a36 |
3922 | case 0x0b: // NEG Rm,Rn 0110nnnnmmmm1011 |
3923 | case 0x0c: // EXTU.B Rm,Rn 0110nnnnmmmm1100 |
3924 | case 0x0d: // EXTU.W Rm,Rn 0110nnnnmmmm1101 |
3925 | case 0x0e: // EXTS.B Rm,Rn 0110nnnnmmmm1110 |
3926 | case 0x0f: // EXTS.W Rm,Rn 0110nnnnmmmm1111 |
3927 | arith_rmrn: |
3928 | opd->source = BITMASK1(GET_Rm()); |
3929 | opd->dest = BITMASK1(GET_Rn()); |
3930 | break; |
3931 | } |
3932 | break; |
3933 | |
3934 | ///////////////////////////////////////////// |
3935 | case 0x07: |
3936 | // ADD #imm,Rn 0111nnnniiiiiiii |
3937 | opd->source = opd->dest = BITMASK1(GET_Rn()); |
3938 | opd->imm = (int)(signed char)op; |
3939 | break; |
3940 | |
3941 | ///////////////////////////////////////////// |
3942 | case 0x08: |
3943 | switch (op & 0x0f00) |
3944 | { |
3945 | case 0x0000: // MOV.B R0,@(disp,Rn) 10000000nnnndddd |
3946 | opd->source = BITMASK2(GET_Rm(), SHR_R0); |
3947 | opd->imm = (op & 0x0f); |
3948 | break; |
3949 | case 0x0100: // MOV.W R0,@(disp,Rn) 10000001nnnndddd |
3950 | opd->source = BITMASK2(GET_Rm(), SHR_R0); |
3951 | opd->imm = (op & 0x0f) * 2; |
3952 | break; |
3953 | case 0x0400: // MOV.B @(disp,Rm),R0 10000100mmmmdddd |
3954 | opd->source = BITMASK1(GET_Rm()); |
3955 | opd->dest = BITMASK1(SHR_R0); |
3956 | opd->imm = (op & 0x0f); |
3957 | break; |
3958 | case 0x0500: // MOV.W @(disp,Rm),R0 10000101mmmmdddd |
3959 | opd->source = BITMASK1(GET_Rm()); |
3960 | opd->dest = BITMASK1(SHR_R0); |
3961 | opd->imm = (op & 0x0f) * 2; |
3962 | break; |
3963 | case 0x0800: // CMP/EQ #imm,R0 10001000iiiiiiii |
3964 | opd->source = BITMASK1(SHR_R0); |
3965 | opd->dest = BITMASK1(SHR_T); |
3966 | opd->imm = (int)(signed char)op; |
3967 | break; |
3968 | case 0x0d00: // BT/S label 10001101dddddddd |
3969 | case 0x0f00: // BF/S label 10001111dddddddd |
3970 | next_is_delay = 1; |
3971 | // fallthrough |
3972 | case 0x0900: // BT label 10001001dddddddd |
3973 | case 0x0b00: // BF label 10001011dddddddd |
3974 | opd->op = (op & 0x0200) ? OP_BRANCH_CF : OP_BRANCH_CT; |
3975 | opd->source = BITMASK1(SHR_T); |
3976 | opd->dest = BITMASK1(SHR_PC); |
3977 | opd->imm = ((signed int)(op << 24) >> 23); |
3978 | opd->imm += pc + 4; |
3979 | if (base_pc <= opd->imm && opd->imm < base_pc + BLOCK_INSN_LIMIT * 2) |
3980 | op_flags[(opd->imm - base_pc) / 2] |= OF_BTARGET; |
3981 | break; |
3982 | default: |
3983 | goto undefined; |
3984 | } |
3985 | break; |
3986 | |
3987 | ///////////////////////////////////////////// |
3988 | case 0x09: |
3989 | // MOV.W @(disp,PC),Rn 1001nnnndddddddd |
3990 | opd->op = OP_LOAD_POOL; |
fa841b44 |
3991 | tmp = pc + 2; |
3992 | if (op_flags[i] & OF_DELAY_OP) { |
3993 | if (ops[i-1].op == OP_BRANCH) |
3994 | tmp = ops[i-1].imm; |
3995 | else |
3996 | tmp = 0; |
3997 | } |
bf092a36 |
3998 | opd->source = BITMASK1(SHR_PC); |
3999 | opd->dest = BITMASK1(GET_Rn()); |
fa841b44 |
4000 | if (tmp) |
4001 | opd->imm = tmp + 2 + (op & 0xff) * 2; |
bf092a36 |
4002 | opd->size = 1; |
4003 | break; |
4004 | |
4005 | ///////////////////////////////////////////// |
4006 | case 0x0b: |
4007 | // BSR label 1011dddddddddddd |
4008 | opd->dest = BITMASK1(SHR_PR); |
4009 | case 0x0a: |
4010 | // BRA label 1010dddddddddddd |
4011 | opd->op = OP_BRANCH; |
4012 | opd->dest |= BITMASK1(SHR_PC); |
4013 | opd->imm = ((signed int)(op << 20) >> 19); |
4014 | opd->imm += pc + 4; |
4015 | opd->cycles = 2; |
4016 | next_is_delay = 1; |
4017 | end_block = 1; |
4018 | if (base_pc <= opd->imm && opd->imm < base_pc + BLOCK_INSN_LIMIT * 2) |
4019 | op_flags[(opd->imm - base_pc) / 2] |= OF_BTARGET; |
4020 | break; |
4021 | |
4022 | ///////////////////////////////////////////// |
4023 | case 0x0c: |
4024 | switch (op & 0x0f00) |
4025 | { |
4026 | case 0x0000: // MOV.B R0,@(disp,GBR) 11000000dddddddd |
4027 | case 0x0100: // MOV.W R0,@(disp,GBR) 11000001dddddddd |
4028 | case 0x0200: // MOV.L R0,@(disp,GBR) 11000010dddddddd |
4029 | opd->source = BITMASK2(SHR_GBR, SHR_R0); |
4030 | opd->size = (op & 0x300) >> 8; |
4031 | opd->imm = (op & 0xff) << opd->size; |
4032 | break; |
4033 | case 0x0400: // MOV.B @(disp,GBR),R0 11000100dddddddd |
4034 | case 0x0500: // MOV.W @(disp,GBR),R0 11000101dddddddd |
4035 | case 0x0600: // MOV.L @(disp,GBR),R0 11000110dddddddd |
4036 | opd->source = BITMASK1(SHR_GBR); |
4037 | opd->dest = BITMASK1(SHR_R0); |
4038 | opd->size = (op & 0x300) >> 8; |
4039 | opd->imm = (op & 0xff) << opd->size; |
4040 | break; |
4041 | case 0x0300: // TRAPA #imm 11000011iiiiiiii |
4042 | opd->source = BITMASK2(SHR_PC, SHR_SR); |
4043 | opd->dest = BITMASK1(SHR_PC); |
4044 | opd->imm = (op & 0xff) * 4; |
4045 | opd->cycles = 8; |
4046 | end_block = 1; // FIXME |
4047 | break; |
4048 | case 0x0700: // MOVA @(disp,PC),R0 11000111dddddddd |
fa841b44 |
4049 | opd->op = OP_MOVA; |
4050 | tmp = pc + 2; |
4051 | if (op_flags[i] & OF_DELAY_OP) { |
4052 | if (ops[i-1].op == OP_BRANCH) |
4053 | tmp = ops[i-1].imm; |
4054 | else |
4055 | tmp = 0; |
4056 | } |
bf092a36 |
4057 | opd->dest = BITMASK1(SHR_R0); |
ee5f7e99 |
4058 | if (tmp) { |
fa841b44 |
4059 | opd->imm = (tmp + 2 + (op & 0xff) * 4) & ~3; |
ee5f7e99 |
4060 | if (opd->imm >= base_pc) { |
4061 | if (lowest_mova == 0 || opd->imm < lowest_mova) |
4062 | lowest_mova = opd->imm; |
4063 | } |
4064 | } |
bf092a36 |
4065 | break; |
4066 | case 0x0800: // TST #imm,R0 11001000iiiiiiii |
4067 | opd->source = BITMASK1(SHR_R0); |
4068 | opd->dest = BITMASK1(SHR_T); |
4069 | opd->imm = op & 0xff; |
4070 | break; |
4071 | case 0x0900: // AND #imm,R0 11001001iiiiiiii |
4072 | opd->source = opd->dest = BITMASK1(SHR_R0); |
4073 | opd->imm = op & 0xff; |
4074 | break; |
4075 | case 0x0a00: // XOR #imm,R0 11001010iiiiiiii |
4076 | opd->source = opd->dest = BITMASK1(SHR_R0); |
4077 | opd->imm = op & 0xff; |
4078 | break; |
4079 | case 0x0b00: // OR #imm,R0 11001011iiiiiiii |
4080 | opd->source = opd->dest = BITMASK1(SHR_R0); |
4081 | opd->imm = op & 0xff; |
4082 | break; |
4083 | case 0x0c00: // TST.B #imm,@(R0,GBR) 11001100iiiiiiii |
4084 | opd->source = BITMASK2(SHR_GBR, SHR_R0); |
4085 | opd->dest = BITMASK1(SHR_T); |
4086 | opd->imm = op & 0xff; |
4087 | opd->cycles = 3; |
4088 | break; |
4089 | case 0x0d00: // AND.B #imm,@(R0,GBR) 11001101iiiiiiii |
4090 | case 0x0e00: // XOR.B #imm,@(R0,GBR) 11001110iiiiiiii |
4091 | case 0x0f00: // OR.B #imm,@(R0,GBR) 11001111iiiiiiii |
4092 | opd->source = BITMASK2(SHR_GBR, SHR_R0); |
4093 | opd->imm = op & 0xff; |
4094 | opd->cycles = 3; |
4095 | break; |
4096 | default: |
4097 | goto undefined; |
4098 | } |
4099 | break; |
4100 | |
4101 | ///////////////////////////////////////////// |
4102 | case 0x0d: |
4103 | // MOV.L @(disp,PC),Rn 1101nnnndddddddd |
4104 | opd->op = OP_LOAD_POOL; |
fa841b44 |
4105 | tmp = pc + 2; |
4106 | if (op_flags[i] & OF_DELAY_OP) { |
4107 | if (ops[i-1].op == OP_BRANCH) |
4108 | tmp = ops[i-1].imm; |
4109 | else |
4110 | tmp = 0; |
4111 | } |
bf092a36 |
4112 | opd->source = BITMASK1(SHR_PC); |
4113 | opd->dest = BITMASK1(GET_Rn()); |
fa841b44 |
4114 | if (tmp) |
4115 | opd->imm = (tmp + 2 + (op & 0xff) * 4) & ~3; |
bf092a36 |
4116 | opd->size = 2; |
4117 | break; |
4118 | |
4119 | ///////////////////////////////////////////// |
4120 | case 0x0e: |
4121 | // MOV #imm,Rn 1110nnnniiiiiiii |
4122 | opd->dest = BITMASK1(GET_Rn()); |
4123 | opd->imm = (u32)(signed int)(signed char)op; |
4124 | break; |
4125 | |
4126 | default: |
4127 | undefined: |
4128 | elprintf(EL_ANOMALY, "%csh2 drc: unhandled op %04x @ %08x", |
4129 | is_slave ? 's' : 'm', op, pc); |
4130 | break; |
4131 | } |
6a5b1b36 |
4132 | |
4133 | if (op_flags[i] & OF_DELAY_OP) { |
4134 | switch (opd->op) { |
4135 | case OP_BRANCH: |
4136 | case OP_BRANCH_CT: |
4137 | case OP_BRANCH_CF: |
4138 | case OP_BRANCH_R: |
4139 | case OP_BRANCH_RF: |
4140 | elprintf(EL_ANOMALY, "%csh2 drc: branch in DS @ %08x", |
4141 | is_slave ? 's' : 'm', pc); |
4142 | opd->op = OP_UNHANDLED; |
4143 | op_flags[i] |= OF_B_IN_DS; |
4144 | next_is_delay = 0; |
4145 | break; |
4146 | } |
4147 | } |
bf092a36 |
4148 | } |
4149 | i_end = i; |
4150 | end_pc = pc; |
4151 | |
4152 | // 2nd pass: some analysis |
4153 | for (i = 0; i < i_end; i++) { |
4154 | opd = &ops[i]; |
4155 | |
4156 | // propagate T (TODO: DIV0U) |
4157 | if ((opd->op == OP_SETCLRT && !opd->imm) || opd->op == OP_BRANCH_CT) |
4158 | op_flags[i + 1] |= OF_T_CLEAR; |
4159 | else if ((opd->op == OP_SETCLRT && opd->imm) || opd->op == OP_BRANCH_CF) |
4160 | op_flags[i + 1] |= OF_T_SET; |
4161 | |
4162 | if ((op_flags[i] & OF_BTARGET) || (opd->dest & BITMASK1(SHR_T))) |
4163 | op_flags[i] &= ~(OF_T_SET | OF_T_CLEAR); |
4164 | else |
4165 | op_flags[i + 1] |= op_flags[i] & (OF_T_SET | OF_T_CLEAR); |
4166 | |
4167 | if ((opd->op == OP_BRANCH_CT && (op_flags[i] & OF_T_SET)) |
4168 | || (opd->op == OP_BRANCH_CF && (op_flags[i] & OF_T_CLEAR))) |
4169 | { |
4170 | opd->op = OP_BRANCH; |
4171 | opd->cycles = 3; |
4172 | i_end = i + 1; |
4173 | if (op_flags[i + 1] & OF_DELAY_OP) { |
4174 | opd->cycles = 2; |
4175 | i_end++; |
4176 | } |
4177 | } |
4178 | else if (opd->op == OP_LOAD_POOL) |
4179 | { |
4180 | if (opd->imm < end_pc + MAX_LITERAL_OFFSET) { |
4181 | if (end_literals < opd->imm + opd->size * 2) |
4182 | end_literals = opd->imm + opd->size * 2; |
4183 | } |
4184 | } |
4185 | } |
4186 | end_pc = base_pc + i_end * 2; |
4187 | if (end_literals < end_pc) |
4188 | end_literals = end_pc; |
4189 | |
ee5f7e99 |
4190 | // end_literals is used to decide to inline a literal or not |
4191 | // XXX: need better detection if this actually is used in write |
4192 | if (lowest_mova >= base_pc) { |
4193 | if (lowest_mova < end_literals) { |
4194 | dbg(1, "mova for %08x, block %08x", lowest_mova, base_pc); |
4195 | end_literals = end_pc; |
4196 | } |
4197 | if (lowest_mova < end_pc) { |
4198 | dbg(1, "warning: mova inside of blk for %08x, block %08x", |
4199 | lowest_mova, base_pc); |
4200 | end_literals = end_pc; |
4201 | } |
4202 | } |
4203 | |
bf092a36 |
4204 | *end_pc_out = end_pc; |
4205 | if (end_literals_out != NULL) |
4206 | *end_literals_out = end_literals; |
00faec9c |
4207 | } |
4208 | |
5f0ca48f |
4209 | // vim:shiftwidth=2:ts=2:expandtab |