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" |
98a3d79b |
32 | #include "../../pico/arm_features.h" |
679af8a3 |
33 | #include "sh2.h" |
34 | #include "compiler.h" |
35 | #include "../drc/cmn.h" |
5686d931 |
36 | #include "../debug.h" |
679af8a3 |
37 | |
23686515 |
38 | // features |
39 | #define PROPAGATE_CONSTANTS 1 |
40 | #define LINK_BRANCHES 1 |
41 | |
04092e32 |
42 | // limits (per block) |
e1553677 |
43 | #define MAX_BLOCK_SIZE (BLOCK_INSN_LIMIT * 6 * 6) |
04092e32 |
44 | |
23686515 |
45 | // max literal offset from the block end |
46 | #define MAX_LITERAL_OFFSET 32*2 |
e1553677 |
47 | #define MAX_LITERALS (BLOCK_INSN_LIMIT / 4) |
04092e32 |
48 | #define MAX_LOCAL_BRANCHES 32 |
23686515 |
49 | |
00faec9c |
50 | // debug stuff |
d602fd4f |
51 | // 01 - warnings/errors |
52 | // 02 - block info/smc |
53 | // 04 - asm |
54 | // 08 - runtime block entry log |
55 | // 10 - smc self-check |
00faec9c |
56 | // { |
e898de13 |
57 | #ifndef DRC_DEBUG |
58 | #define DRC_DEBUG 0 |
59 | #endif |
60 | |
553c3eaa |
61 | #if DRC_DEBUG |
f4bb5d6b |
62 | #define dbg(l,...) { \ |
63 | if ((l) & DRC_DEBUG) \ |
64 | elprintf(EL_STATUS, ##__VA_ARGS__); \ |
65 | } |
e898de13 |
66 | #include "mame/sh2dasm.h" |
009ef50c |
67 | #include <platform/libpicofe/linux/host_dasm.h> |
e898de13 |
68 | static int insns_compiled, hash_collisions, host_insn_count; |
553c3eaa |
69 | #define COUNT_OP \ |
70 | host_insn_count++ |
71 | #else // !DRC_DEBUG |
72 | #define COUNT_OP |
73 | #define dbg(...) |
e898de13 |
74 | #endif |
553c3eaa |
75 | |
bf092a36 |
76 | /// |
77 | #define FETCH_OP(pc) \ |
78 | dr_pc_base[(pc) / 2] |
79 | |
80 | #define FETCH32(a) \ |
81 | ((dr_pc_base[(a) / 2] << 16) | dr_pc_base[(a) / 2 + 1]) |
82 | |
83 | #define CHECK_UNHANDLED_BITS(mask, label) { \ |
84 | if ((op & (mask)) != 0) \ |
85 | goto label; \ |
86 | } |
87 | |
88 | #define GET_Fx() \ |
89 | ((op >> 4) & 0x0f) |
90 | |
91 | #define GET_Rm GET_Fx |
92 | |
93 | #define GET_Rn() \ |
94 | ((op >> 8) & 0x0f) |
95 | |
96 | #define BITMASK1(v0) (1 << (v0)) |
97 | #define BITMASK2(v0,v1) ((1 << (v0)) | (1 << (v1))) |
98 | #define BITMASK3(v0,v1,v2) (BITMASK2(v0,v1) | (1 << (v2))) |
99 | #define BITMASK4(v0,v1,v2,v3) (BITMASK3(v0,v1,v2) | (1 << (v3))) |
100 | #define BITMASK5(v0,v1,v2,v3,v4) (BITMASK4(v0,v1,v2,v3) | (1 << (v4))) |
101 | |
102 | #define SHR_T SHR_SR // might make them separate someday |
103 | |
104 | static struct op_data { |
105 | u8 op; |
106 | u8 cycles; |
107 | u8 size; // 0, 1, 2 - byte, word, long |
108 | s8 rm; // branch or load/store data reg |
109 | u32 source; // bitmask of src regs |
110 | u32 dest; // bitmask of dest regs |
111 | u32 imm; // immediate/io address/branch target |
112 | // (for literal - address, not value) |
113 | } ops[BLOCK_INSN_LIMIT]; |
114 | |
115 | enum op_types { |
116 | OP_UNHANDLED = 0, |
117 | OP_BRANCH, |
118 | OP_BRANCH_CT, // conditional, branch if T set |
119 | OP_BRANCH_CF, // conditional, branch if T clear |
120 | OP_BRANCH_R, // indirect |
121 | OP_BRANCH_RF, // indirect far (PC + Rm) |
122 | OP_SETCLRT, // T flag set/clear |
123 | OP_MOVE, // register move |
fa841b44 |
124 | OP_LOAD_POOL, // literal pool load, imm is address |
125 | OP_MOVA, |
bf092a36 |
126 | OP_SLEEP, |
127 | OP_RTE, |
128 | }; |
129 | |
130 | #ifdef DRC_SH2 |
131 | |
405dfdd7 |
132 | static int literal_disabled_frames; |
133 | |
fcdefcf6 |
134 | #if (DRC_DEBUG & 4) |
f4bb5d6b |
135 | static u8 *tcache_dsm_ptrs[3]; |
e898de13 |
136 | static char sh2dasm_buff[64]; |
f4bb5d6b |
137 | #define do_host_disasm(tcid) \ |
138 | host_dasm(tcache_dsm_ptrs[tcid], tcache_ptr - tcache_dsm_ptrs[tcid]); \ |
139 | tcache_dsm_ptrs[tcid] = tcache_ptr |
140 | #else |
141 | #define do_host_disasm(x) |
e898de13 |
142 | #endif |
e05b81fc |
143 | |
fcdefcf6 |
144 | #if (DRC_DEBUG & 8) || defined(PDB) |
5686d931 |
145 | static void REGPARM(3) *sh2_drc_log_entry(void *block, SH2 *sh2, u32 sr) |
e05b81fc |
146 | { |
5686d931 |
147 | if (block != NULL) { |
fcdefcf6 |
148 | dbg(8, "= %csh2 enter %08x %p, c=%d", sh2->is_slave ? 's' : 'm', |
e05b81fc |
149 | sh2->pc, block, (signed int)sr >> 12); |
5686d931 |
150 | pdb_step(sh2, sh2->pc); |
151 | } |
e05b81fc |
152 | return block; |
153 | } |
154 | #endif |
8796b7ee |
155 | // } debug |
e898de13 |
156 | |
44e6452e |
157 | #define TCACHE_BUFFERS 3 |
f4bb5d6b |
158 | |
159 | // we have 3 translation cache buffers, split from one drc/cmn buffer. |
160 | // BIOS shares tcache with data array because it's only used for init |
161 | // and can be discarded early |
8796b7ee |
162 | // XXX: need to tune sizes |
44e6452e |
163 | static const int tcache_sizes[TCACHE_BUFFERS] = { |
4943816b |
164 | DRC_TCACHE_SIZE * 6 / 8, // ROM (rarely used), DRAM |
f4bb5d6b |
165 | DRC_TCACHE_SIZE / 8, // BIOS, data array in master sh2 |
166 | DRC_TCACHE_SIZE / 8, // ... slave |
167 | }; |
679af8a3 |
168 | |
44e6452e |
169 | static u8 *tcache_bases[TCACHE_BUFFERS]; |
170 | static u8 *tcache_ptrs[TCACHE_BUFFERS]; |
f4bb5d6b |
171 | |
172 | // ptr for code emiters |
173 | static u8 *tcache_ptr; |
e898de13 |
174 | |
228ee974 |
175 | #define MAX_BLOCK_ENTRIES (BLOCK_INSN_LIMIT / 8) |
176 | |
00a725a8 |
177 | struct block_link { |
178 | u32 target_pc; |
179 | void *jump; // insn address |
180 | struct block_link *next; // either in block_entry->links or |
181 | }; |
182 | |
228ee974 |
183 | struct block_entry { |
184 | u32 pc; |
44e6452e |
185 | void *tcache_ptr; // translated block for above PC |
228ee974 |
186 | struct block_entry *next; // next block in hash_table with same pc hash |
00a725a8 |
187 | struct block_link *links; // links to this entry |
228ee974 |
188 | #if (DRC_DEBUG & 2) |
189 | struct block_desc *block; |
190 | #endif |
191 | }; |
192 | |
193 | struct block_desc { |
194 | u32 addr; // block start SH2 PC address |
51d86e55 |
195 | u16 size; // ..of recompiled insns+lit. pool |
196 | u16 size_nolit; // same without literals |
fcdefcf6 |
197 | #if (DRC_DEBUG & 2) |
44e6452e |
198 | int refcount; |
199 | #endif |
228ee974 |
200 | int entry_count; |
201 | struct block_entry entryp[MAX_BLOCK_ENTRIES]; |
e1553677 |
202 | }; |
44e6452e |
203 | |
44e6452e |
204 | static const int block_max_counts[TCACHE_BUFFERS] = { |
205 | 4*1024, |
206 | 256, |
207 | 256, |
208 | }; |
e1553677 |
209 | static struct block_desc *block_tables[TCACHE_BUFFERS]; |
44e6452e |
210 | static int block_counts[TCACHE_BUFFERS]; |
228ee974 |
211 | |
00a725a8 |
212 | // we have block_link_pool to avoid using mallocs |
213 | static const int block_link_pool_max_counts[TCACHE_BUFFERS] = { |
228ee974 |
214 | 4*1024, |
215 | 256, |
216 | 256, |
217 | }; |
00a725a8 |
218 | static struct block_link *block_link_pool[TCACHE_BUFFERS]; |
219 | static int block_link_pool_counts[TCACHE_BUFFERS]; |
220 | static struct block_link *unresolved_links[TCACHE_BUFFERS]; |
44e6452e |
221 | |
4943816b |
222 | // used for invalidation |
223 | static const int ram_sizes[TCACHE_BUFFERS] = { |
224 | 0x40000, |
225 | 0x1000, |
226 | 0x1000, |
227 | }; |
51d86e55 |
228 | #define INVAL_PAGE_SIZE 0x100 |
4943816b |
229 | |
230 | struct block_list { |
e1553677 |
231 | struct block_desc *block; |
4943816b |
232 | struct block_list *next; |
233 | }; |
234 | |
235 | // array of pointers to block_lists for RAM and 2 data arrays |
51d86e55 |
236 | // each array has len: sizeof(mem) / INVAL_PAGE_SIZE |
4943816b |
237 | static struct block_list **inval_lookup[TCACHE_BUFFERS]; |
569420b0 |
238 | |
228ee974 |
239 | static const int hash_table_sizes[TCACHE_BUFFERS] = { |
240 | 0x1000, |
241 | 0x100, |
242 | 0x100, |
243 | }; |
244 | static struct block_entry **hash_tables[TCACHE_BUFFERS]; |
245 | |
246 | #define HASH_FUNC(hash_tab, addr, mask) \ |
247 | (hash_tab)[(((addr) >> 20) ^ ((addr) >> 2)) & (mask)] |
248 | |
c18edb34 |
249 | // host register tracking |
250 | enum { |
251 | HR_FREE, |
252 | HR_CACHED, // 'val' has sh2_reg_e |
23686515 |
253 | // HR_CONST, // 'val' has a constant |
c18edb34 |
254 | HR_TEMP, // reg used for temp storage |
255 | }; |
256 | |
23686515 |
257 | enum { |
258 | HRF_DIRTY = 1 << 0, // reg has "dirty" value to be written to ctx |
259 | HRF_LOCKED = 1 << 1, // HR_CACHED can't be evicted |
260 | }; |
261 | |
c18edb34 |
262 | typedef struct { |
23686515 |
263 | u32 hreg:5; // "host" reg |
264 | u32 greg:5; // "guest" reg |
265 | u32 type:3; |
266 | u32 flags:3; |
267 | u32 stamp:16; // kind of a timestamp |
c18edb34 |
268 | } temp_reg_t; |
269 | |
80599a42 |
270 | // note: reg_temp[] must have at least the amount of |
3863edbd |
271 | // registers used by handlers in worst case (currently 4) |
d4d62665 |
272 | #ifdef __arm__ |
65c75cb0 |
273 | #include "../drc/emit_arm.c" |
274 | |
2dbc96b1 |
275 | #ifndef __MACH__ |
276 | |
65c75cb0 |
277 | static const int reg_map_g2h[] = { |
8b4f38f4 |
278 | 4, 5, 6, 7, |
279 | 8, -1, -1, -1, |
c18edb34 |
280 | -1, -1, -1, -1, |
65514d85 |
281 | -1, -1, -1, 9, // r12 .. sp |
282 | -1, -1, -1, 10, // SHR_PC, SHR_PPC, SHR_PR, SHR_SR, |
283 | -1, -1, -1, -1, // SHR_GBR, SHR_VBR, SHR_MACH, SHR_MACL, |
c18edb34 |
284 | }; |
285 | |
2dbc96b1 |
286 | #else |
287 | |
288 | // no r9.. |
289 | static const int reg_map_g2h[] = { |
290 | 4, 5, 6, 7, |
291 | -1, -1, -1, -1, |
292 | -1, -1, -1, -1, |
293 | -1, -1, -1, 8, // r12 .. sp |
294 | -1, -1, -1, 10, // SHR_PC, SHR_PPC, SHR_PR, SHR_SR, |
295 | -1, -1, -1, -1, // SHR_GBR, SHR_VBR, SHR_MACH, SHR_MACL, |
296 | }; |
297 | |
298 | #endif |
299 | |
c18edb34 |
300 | static temp_reg_t reg_temp[] = { |
301 | { 0, }, |
302 | { 1, }, |
303 | { 12, }, |
304 | { 14, }, |
305 | { 2, }, |
306 | { 3, }, |
65c75cb0 |
307 | }; |
308 | |
e05b81fc |
309 | #elif defined(__i386__) |
e898de13 |
310 | #include "../drc/emit_x86.c" |
311 | |
65c75cb0 |
312 | static const int reg_map_g2h[] = { |
8b4f38f4 |
313 | xSI,-1, -1, -1, |
c18edb34 |
314 | -1, -1, -1, -1, |
315 | -1, -1, -1, -1, |
316 | -1, -1, -1, -1, |
8b4f38f4 |
317 | -1, -1, -1, xDI, |
c18edb34 |
318 | -1, -1, -1, -1, |
319 | }; |
320 | |
3863edbd |
321 | // ax, cx, dx are usually temporaries by convention |
c18edb34 |
322 | static temp_reg_t reg_temp[] = { |
323 | { xAX, }, |
3863edbd |
324 | { xBX, }, |
c18edb34 |
325 | { xCX, }, |
326 | { xDX, }, |
65c75cb0 |
327 | }; |
328 | |
898d51a7 |
329 | #elif defined(__x86_64__) |
330 | #include "../drc/emit_x86.c" |
331 | |
332 | static const int reg_map_g2h[] = { |
333 | -1, -1, -1, -1, |
334 | -1, -1, -1, -1, |
335 | -1, -1, -1, -1, |
336 | -1, -1, -1, -1, |
337 | -1, -1, -1, xBX, |
338 | -1, -1, -1, -1, |
339 | }; |
340 | |
341 | // ax, cx, dx are usually temporaries by convention |
342 | static temp_reg_t reg_temp[] = { |
343 | { xAX, }, |
344 | { xCX, }, |
345 | { xDX, }, |
346 | { xSI, }, |
347 | { xDI, }, |
348 | }; |
349 | |
e05b81fc |
350 | #else |
351 | #error unsupported arch |
65c75cb0 |
352 | #endif |
353 | |
80599a42 |
354 | #define T 0x00000001 |
355 | #define S 0x00000002 |
356 | #define I 0x000000f0 |
357 | #define Q 0x00000100 |
358 | #define M 0x00000200 |
18b94127 |
359 | #define T_save 0x00000800 |
80599a42 |
360 | |
e05b81fc |
361 | #define I_SHIFT 4 |
f0d7b1fa |
362 | #define Q_SHIFT 8 |
363 | #define M_SHIFT 9 |
364 | |
e05b81fc |
365 | static void REGPARM(1) (*sh2_drc_entry)(SH2 *sh2); |
366 | static void (*sh2_drc_dispatcher)(void); |
367 | static void (*sh2_drc_exit)(void); |
368 | static void (*sh2_drc_test_irq)(void); |
5686d931 |
369 | |
370 | static u32 REGPARM(2) (*sh2_drc_read8)(u32 a, SH2 *sh2); |
371 | static u32 REGPARM(2) (*sh2_drc_read16)(u32 a, SH2 *sh2); |
372 | static u32 REGPARM(2) (*sh2_drc_read32)(u32 a, SH2 *sh2); |
e05b81fc |
373 | static void REGPARM(2) (*sh2_drc_write8)(u32 a, u32 d); |
e05b81fc |
374 | static void REGPARM(2) (*sh2_drc_write16)(u32 a, u32 d); |
f81107f5 |
375 | static void REGPARM(3) (*sh2_drc_write32)(u32 a, u32 d, SH2 *sh2); |
679af8a3 |
376 | |
a2b8c5a5 |
377 | // address space stuff |
a2b8c5a5 |
378 | static int dr_ctx_get_mem_ptr(u32 a, u32 *mask) |
379 | { |
380 | int poffs = -1; |
381 | |
382 | if ((a & ~0x7ff) == 0) { |
383 | // BIOS |
384 | poffs = offsetof(SH2, p_bios); |
385 | *mask = 0x7ff; |
386 | } |
387 | else if ((a & 0xfffff000) == 0xc0000000) { |
388 | // data array |
f81107f5 |
389 | // FIXME: access sh2->data_array instead |
a2b8c5a5 |
390 | poffs = offsetof(SH2, p_da); |
391 | *mask = 0xfff; |
392 | } |
393 | else if ((a & 0xc6000000) == 0x06000000) { |
394 | // SDRAM |
395 | poffs = offsetof(SH2, p_sdram); |
396 | *mask = 0x03ffff; |
397 | } |
398 | else if ((a & 0xc6000000) == 0x02000000) { |
399 | // ROM |
400 | poffs = offsetof(SH2, p_rom); |
401 | *mask = 0x3fffff; |
402 | } |
403 | |
404 | return poffs; |
405 | } |
406 | |
228ee974 |
407 | static struct block_entry *dr_get_entry(u32 pc, int is_slave, int *tcache_id) |
a2b8c5a5 |
408 | { |
228ee974 |
409 | struct block_entry *be; |
410 | u32 tcid = 0, mask; |
a2b8c5a5 |
411 | |
228ee974 |
412 | // data arrays have their own caches |
413 | if ((pc & 0xe0000000) == 0xc0000000 || (pc & ~0xfff) == 0) |
414 | tcid = 1 + is_slave; |
415 | |
416 | *tcache_id = tcid; |
417 | |
418 | mask = hash_table_sizes[tcid] - 1; |
419 | be = HASH_FUNC(hash_tables[tcid], pc, mask); |
420 | for (; be != NULL; be = be->next) |
421 | if (be->pc == pc) |
422 | return be; |
a2b8c5a5 |
423 | |
424 | return NULL; |
425 | } |
426 | |
427 | // --------------------------------------------------------------- |
428 | |
429 | // block management |
e1553677 |
430 | static void add_to_block_list(struct block_list **blist, struct block_desc *block) |
4943816b |
431 | { |
432 | struct block_list *added = malloc(sizeof(*added)); |
433 | if (!added) { |
434 | elprintf(EL_ANOMALY, "drc OOM (1)"); |
435 | return; |
436 | } |
437 | added->block = block; |
438 | added->next = *blist; |
439 | *blist = added; |
440 | } |
441 | |
e1553677 |
442 | static void rm_from_block_list(struct block_list **blist, struct block_desc *block) |
4943816b |
443 | { |
444 | struct block_list *prev = NULL, *current = *blist; |
f0ed9e38 |
445 | for (; current != NULL; current = current->next) { |
4943816b |
446 | if (current->block == block) { |
447 | if (prev == NULL) |
448 | *blist = current->next; |
449 | else |
450 | prev->next = current->next; |
451 | free(current); |
452 | return; |
453 | } |
f0ed9e38 |
454 | prev = current; |
4943816b |
455 | } |
456 | dbg(1, "can't rm block %p (%08x-%08x)", |
51d86e55 |
457 | block, block->addr, block->addr + block->size); |
4943816b |
458 | } |
459 | |
460 | static void rm_block_list(struct block_list **blist) |
461 | { |
462 | struct block_list *tmp, *current = *blist; |
463 | while (current != NULL) { |
464 | tmp = current; |
465 | current = current->next; |
466 | free(tmp); |
467 | } |
468 | *blist = NULL; |
469 | } |
470 | |
a2b8c5a5 |
471 | static void REGPARM(1) flush_tcache(int tcid) |
f4bb5d6b |
472 | { |
4943816b |
473 | int i; |
474 | |
553c3eaa |
475 | dbg(1, "tcache #%d flush! (%d/%d, bds %d/%d)", tcid, |
f4bb5d6b |
476 | tcache_ptrs[tcid] - tcache_bases[tcid], tcache_sizes[tcid], |
477 | block_counts[tcid], block_max_counts[tcid]); |
478 | |
479 | block_counts[tcid] = 0; |
00a725a8 |
480 | block_link_pool_counts[tcid] = 0; |
481 | unresolved_links[tcid] = NULL; |
228ee974 |
482 | memset(hash_tables[tcid], 0, sizeof(*hash_tables[0]) * hash_table_sizes[tcid]); |
f4bb5d6b |
483 | tcache_ptrs[tcid] = tcache_bases[tcid]; |
228ee974 |
484 | if (Pico32xMem != NULL) { |
485 | if (tcid == 0) // ROM, RAM |
486 | memset(Pico32xMem->drcblk_ram, 0, |
487 | sizeof(Pico32xMem->drcblk_ram)); |
488 | else |
489 | memset(Pico32xMem->drcblk_da[tcid - 1], 0, |
490 | sizeof(Pico32xMem->drcblk_da[0])); |
f4bb5d6b |
491 | } |
fcdefcf6 |
492 | #if (DRC_DEBUG & 4) |
f4bb5d6b |
493 | tcache_dsm_ptrs[tcid] = tcache_bases[tcid]; |
494 | #endif |
4943816b |
495 | |
51d86e55 |
496 | for (i = 0; i < ram_sizes[tcid] / INVAL_PAGE_SIZE; i++) |
4943816b |
497 | rm_block_list(&inval_lookup[tcid][i]); |
f4bb5d6b |
498 | } |
499 | |
228ee974 |
500 | static void add_to_hashlist(struct block_entry *be, int tcache_id) |
501 | { |
502 | u32 tcmask = hash_table_sizes[tcache_id] - 1; |
503 | |
504 | be->next = HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask); |
505 | HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask) = be; |
506 | |
507 | #if (DRC_DEBUG & 2) |
508 | if (be->next != NULL) { |
509 | printf(" %08x: hash collision with %08x\n", |
510 | be->pc, be->next->pc); |
511 | hash_collisions++; |
512 | } |
513 | #endif |
514 | } |
515 | |
516 | static void rm_from_hashlist(struct block_entry *be, int tcache_id) |
517 | { |
518 | u32 tcmask = hash_table_sizes[tcache_id] - 1; |
519 | struct block_entry *cur, *prev; |
520 | |
521 | cur = HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask); |
522 | if (cur == NULL) |
523 | goto missing; |
524 | |
525 | if (be == cur) { // first |
526 | HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask) = be->next; |
527 | return; |
528 | } |
529 | |
530 | for (prev = cur, cur = cur->next; cur != NULL; cur = cur->next) { |
531 | if (cur == be) { |
532 | prev->next = cur->next; |
533 | return; |
534 | } |
535 | } |
536 | |
537 | missing: |
538 | dbg(1, "rm_from_hashlist: be %p %08x missing?", be, be->pc); |
539 | } |
540 | |
f0ed9e38 |
541 | static void unregister_links(struct block_entry *be, int tcache_id) |
542 | { |
543 | struct block_link *bl_unresolved = unresolved_links[tcache_id]; |
544 | struct block_link *bl, *bl_next; |
545 | |
546 | for (bl = be->links; bl != NULL; ) { |
547 | bl_next = bl->next; |
548 | bl->next = bl_unresolved; |
549 | bl_unresolved = bl; |
550 | bl = bl_next; |
551 | } |
552 | be->links = NULL; |
553 | unresolved_links[tcache_id] = bl_unresolved; |
554 | } |
555 | |
556 | // unlike sh2_smc_rm_block, the block stays and can still be accessed |
557 | // by other already directly linked blocks, just not preferred |
558 | static void kill_block_entry(struct block_entry *be, int tcache_id) |
559 | { |
560 | rm_from_hashlist(be, tcache_id); |
561 | unregister_links(be, tcache_id); |
562 | } |
563 | |
51d86e55 |
564 | static struct block_desc *dr_add_block(u32 addr, u16 size_lit, |
565 | u16 size_nolit, int is_slave, int *blk_id) |
679af8a3 |
566 | { |
228ee974 |
567 | struct block_entry *be; |
e1553677 |
568 | struct block_desc *bd; |
a2b8c5a5 |
569 | int tcache_id; |
570 | int *bcount; |
571 | |
228ee974 |
572 | // do a lookup to get tcache_id and override check |
573 | be = dr_get_entry(addr, is_slave, &tcache_id); |
f0ed9e38 |
574 | if (be != NULL) { |
575 | dbg(1, "block override for %08x, was %p", addr, be->tcache_ptr); |
576 | kill_block_entry(be, tcache_id); |
577 | } |
679af8a3 |
578 | |
a2b8c5a5 |
579 | bcount = &block_counts[tcache_id]; |
44e6452e |
580 | if (*bcount >= block_max_counts[tcache_id]) { |
fcdefcf6 |
581 | dbg(1, "bd overflow for tcache %d", tcache_id); |
f4bb5d6b |
582 | return NULL; |
44e6452e |
583 | } |
679af8a3 |
584 | |
f4bb5d6b |
585 | bd = &block_tables[tcache_id][*bcount]; |
679af8a3 |
586 | bd->addr = addr; |
51d86e55 |
587 | bd->size = size_lit; |
588 | bd->size_nolit = size_nolit; |
679af8a3 |
589 | |
228ee974 |
590 | bd->entry_count = 1; |
591 | bd->entryp[0].pc = addr; |
592 | bd->entryp[0].tcache_ptr = tcache_ptr; |
00a725a8 |
593 | bd->entryp[0].links = NULL; |
fcdefcf6 |
594 | #if (DRC_DEBUG & 2) |
228ee974 |
595 | bd->entryp[0].block = bd; |
596 | bd->refcount = 0; |
18b94127 |
597 | #endif |
228ee974 |
598 | add_to_hashlist(&bd->entryp[0], tcache_id); |
599 | |
600 | *blk_id = *bcount; |
601 | (*bcount)++; |
18b94127 |
602 | |
679af8a3 |
603 | return bd; |
604 | } |
605 | |
a2b8c5a5 |
606 | static void REGPARM(3) *dr_lookup_block(u32 pc, int is_slave, int *tcache_id) |
607 | { |
228ee974 |
608 | struct block_entry *be = NULL; |
a2b8c5a5 |
609 | void *block = NULL; |
610 | |
228ee974 |
611 | be = dr_get_entry(pc, is_slave, tcache_id); |
612 | if (be != NULL) |
613 | block = be->tcache_ptr; |
a2b8c5a5 |
614 | |
fcdefcf6 |
615 | #if (DRC_DEBUG & 2) |
228ee974 |
616 | if (be != NULL) |
617 | be->block->refcount++; |
a2b8c5a5 |
618 | #endif |
619 | return block; |
620 | } |
621 | |
c25d78ee |
622 | static void *dr_failure(void) |
623 | { |
624 | lprintf("recompilation failed\n"); |
625 | exit(1); |
626 | } |
627 | |
00a725a8 |
628 | static void *dr_prepare_ext_branch(u32 pc, int is_slave, int tcache_id) |
a2b8c5a5 |
629 | { |
630 | #if LINK_BRANCHES |
00a725a8 |
631 | struct block_link *bl = block_link_pool[tcache_id]; |
632 | int cnt = block_link_pool_counts[tcache_id]; |
633 | struct block_entry *be = NULL; |
a2b8c5a5 |
634 | int target_tcache_id; |
00a725a8 |
635 | int i; |
636 | |
637 | be = dr_get_entry(pc, is_slave, &target_tcache_id); |
638 | if (target_tcache_id != tcache_id) |
639 | return sh2_drc_dispatcher; |
640 | |
641 | // if pool has been freed, reuse |
642 | for (i = cnt - 1; i >= 0; i--) |
643 | if (bl[i].target_pc != 0) |
644 | break; |
645 | cnt = i + 1; |
646 | if (cnt >= block_link_pool_max_counts[tcache_id]) { |
6d797957 |
647 | dbg(1, "bl overflow for tcache %d", tcache_id); |
00a725a8 |
648 | return NULL; |
a2b8c5a5 |
649 | } |
00a725a8 |
650 | bl += cnt; |
651 | block_link_pool_counts[tcache_id]++; |
a2b8c5a5 |
652 | |
00a725a8 |
653 | bl->target_pc = pc; |
654 | bl->jump = tcache_ptr; |
655 | |
656 | if (be != NULL) { |
657 | dbg(2, "- early link from %p to pc %08x", bl->jump, pc); |
658 | bl->next = be->links; |
659 | be->links = bl; |
660 | return be->tcache_ptr; |
661 | } |
662 | else { |
663 | bl->next = unresolved_links[tcache_id]; |
664 | unresolved_links[tcache_id] = bl; |
665 | return sh2_drc_dispatcher; |
666 | } |
a2b8c5a5 |
667 | #else |
668 | return sh2_drc_dispatcher; |
669 | #endif |
670 | } |
671 | |
00a725a8 |
672 | static void dr_link_blocks(struct block_entry *be, int tcache_id) |
a2b8c5a5 |
673 | { |
00a725a8 |
674 | #if LINK_BRANCHES |
675 | struct block_link *first = unresolved_links[tcache_id]; |
676 | struct block_link *bl, *prev, *tmp; |
677 | u32 pc = be->pc; |
678 | |
679 | for (bl = prev = first; bl != NULL; ) { |
680 | if (bl->target_pc == pc) { |
681 | dbg(2, "- link from %p to pc %08x", bl->jump, pc); |
682 | emith_jump_patch(bl->jump, tcache_ptr); |
683 | |
684 | // move bl from unresolved_links to block_entry |
685 | tmp = bl->next; |
686 | bl->next = be->links; |
687 | be->links = bl; |
688 | |
689 | if (bl == first) |
690 | first = prev = bl = tmp; |
691 | else |
692 | prev->next = bl = tmp; |
693 | continue; |
a2b8c5a5 |
694 | } |
00a725a8 |
695 | prev = bl; |
696 | bl = bl->next; |
a2b8c5a5 |
697 | } |
00a725a8 |
698 | unresolved_links[tcache_id] = first; |
699 | |
700 | // could sync arm caches here, but that's unnecessary |
a2b8c5a5 |
701 | #endif |
702 | } |
703 | |
44e6452e |
704 | #define ADD_TO_ARRAY(array, count, item, failcode) \ |
44e6452e |
705 | if (count >= ARRAY_SIZE(array)) { \ |
fcdefcf6 |
706 | dbg(1, "warning: " #array " overflow"); \ |
44e6452e |
707 | failcode; \ |
fa841b44 |
708 | } \ |
709 | array[count++] = item; |
44e6452e |
710 | |
a2b8c5a5 |
711 | static int find_in_array(u32 *array, size_t size, u32 what) |
18b94127 |
712 | { |
713 | size_t i; |
714 | for (i = 0; i < size; i++) |
715 | if (what == array[i]) |
716 | return i; |
717 | |
718 | return -1; |
719 | } |
679af8a3 |
720 | |
721 | // --------------------------------------------------------------- |
722 | |
a2b8c5a5 |
723 | // register cache / constant propagation stuff |
23686515 |
724 | typedef enum { |
725 | RC_GR_READ, |
726 | RC_GR_WRITE, |
727 | RC_GR_RMW, |
728 | } rc_gr_mode; |
729 | |
730 | static int rcache_get_reg_(sh2_reg_e r, rc_gr_mode mode, int do_locking); |
731 | |
732 | // guest regs with constants |
733 | static u32 dr_gcregs[24]; |
734 | // a mask of constant/dirty regs |
735 | static u32 dr_gcregs_mask; |
736 | static u32 dr_gcregs_dirty; |
737 | |
a2b8c5a5 |
738 | #if PROPAGATE_CONSTANTS |
23686515 |
739 | static void gconst_new(sh2_reg_e r, u32 val) |
740 | { |
23686515 |
741 | int i; |
742 | |
743 | dr_gcregs_mask |= 1 << r; |
744 | dr_gcregs_dirty |= 1 << r; |
745 | dr_gcregs[r] = val; |
746 | |
747 | // throw away old r that we might have cached |
748 | for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { |
749 | if ((reg_temp[i].type == HR_CACHED) && |
750 | reg_temp[i].greg == r) { |
751 | reg_temp[i].type = HR_FREE; |
752 | reg_temp[i].flags = 0; |
753 | } |
754 | } |
23686515 |
755 | } |
a2b8c5a5 |
756 | #endif |
23686515 |
757 | |
758 | static int gconst_get(sh2_reg_e r, u32 *val) |
759 | { |
760 | if (dr_gcregs_mask & (1 << r)) { |
761 | *val = dr_gcregs[r]; |
762 | return 1; |
763 | } |
764 | return 0; |
765 | } |
766 | |
767 | static int gconst_check(sh2_reg_e r) |
768 | { |
769 | if ((dr_gcregs_mask | dr_gcregs_dirty) & (1 << r)) |
770 | return 1; |
771 | return 0; |
772 | } |
773 | |
774 | // update hr if dirty, else do nothing |
775 | static int gconst_try_read(int hr, sh2_reg_e r) |
776 | { |
777 | if (dr_gcregs_dirty & (1 << r)) { |
778 | emith_move_r_imm(hr, dr_gcregs[r]); |
779 | dr_gcregs_dirty &= ~(1 << r); |
780 | return 1; |
781 | } |
782 | return 0; |
783 | } |
784 | |
785 | static void gconst_check_evict(sh2_reg_e r) |
786 | { |
787 | if (dr_gcregs_mask & (1 << r)) |
788 | // no longer cached in reg, make dirty again |
789 | dr_gcregs_dirty |= 1 << r; |
790 | } |
791 | |
792 | static void gconst_kill(sh2_reg_e r) |
793 | { |
794 | dr_gcregs_mask &= ~(1 << r); |
795 | dr_gcregs_dirty &= ~(1 << r); |
796 | } |
797 | |
798 | static void gconst_clean(void) |
799 | { |
800 | int i; |
801 | |
802 | for (i = 0; i < ARRAY_SIZE(dr_gcregs); i++) |
803 | if (dr_gcregs_dirty & (1 << i)) { |
804 | // using RC_GR_READ here: it will call gconst_try_read, |
805 | // cache the reg and mark it dirty. |
806 | rcache_get_reg_(i, RC_GR_READ, 0); |
807 | } |
808 | } |
809 | |
810 | static void gconst_invalidate(void) |
811 | { |
812 | dr_gcregs_mask = dr_gcregs_dirty = 0; |
813 | } |
814 | |
c18edb34 |
815 | static u16 rcache_counter; |
816 | |
817 | static temp_reg_t *rcache_evict(void) |
41397701 |
818 | { |
c18edb34 |
819 | // evict reg with oldest stamp |
820 | int i, oldest = -1; |
821 | u16 min_stamp = (u16)-1; |
822 | |
823 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) { |
23686515 |
824 | if (reg_temp[i].type == HR_CACHED && !(reg_temp[i].flags & HRF_LOCKED) && |
825 | reg_temp[i].stamp <= min_stamp) { |
826 | min_stamp = reg_temp[i].stamp; |
827 | oldest = i; |
828 | } |
c18edb34 |
829 | } |
830 | |
831 | if (oldest == -1) { |
80599a42 |
832 | printf("no registers to evict, aborting\n"); |
c18edb34 |
833 | exit(1); |
834 | } |
835 | |
836 | i = oldest; |
23686515 |
837 | if (reg_temp[i].type == HR_CACHED) { |
838 | if (reg_temp[i].flags & HRF_DIRTY) |
839 | // writeback |
840 | emith_ctx_write(reg_temp[i].hreg, reg_temp[i].greg * 4); |
841 | gconst_check_evict(reg_temp[i].greg); |
c18edb34 |
842 | } |
843 | |
23686515 |
844 | reg_temp[i].type = HR_FREE; |
845 | reg_temp[i].flags = 0; |
c18edb34 |
846 | return ®_temp[i]; |
679af8a3 |
847 | } |
848 | |
23686515 |
849 | static int get_reg_static(sh2_reg_e r, rc_gr_mode mode) |
850 | { |
851 | int i = reg_map_g2h[r]; |
852 | if (i != -1) { |
853 | if (mode != RC_GR_WRITE) |
854 | gconst_try_read(i, r); |
855 | } |
856 | return i; |
857 | } |
c18edb34 |
858 | |
80599a42 |
859 | // note: must not be called when doing conditional code |
23686515 |
860 | static int rcache_get_reg_(sh2_reg_e r, rc_gr_mode mode, int do_locking) |
679af8a3 |
861 | { |
c18edb34 |
862 | temp_reg_t *tr; |
23686515 |
863 | int i, ret; |
c18edb34 |
864 | |
23686515 |
865 | // maybe statically mapped? |
866 | ret = get_reg_static(r, mode); |
867 | if (ret != -1) |
868 | goto end; |
679af8a3 |
869 | |
c18edb34 |
870 | rcache_counter++; |
871 | |
872 | // maybe already cached? |
23686515 |
873 | // if so, prefer against gconst (they must be in sync) |
c18edb34 |
874 | for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { |
23686515 |
875 | if (reg_temp[i].type == HR_CACHED && reg_temp[i].greg == r) { |
c18edb34 |
876 | reg_temp[i].stamp = rcache_counter; |
877 | if (mode != RC_GR_READ) |
23686515 |
878 | reg_temp[i].flags |= HRF_DIRTY; |
879 | ret = reg_temp[i].hreg; |
880 | goto end; |
c18edb34 |
881 | } |
679af8a3 |
882 | } |
883 | |
c18edb34 |
884 | // use any free reg |
885 | for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { |
23686515 |
886 | if (reg_temp[i].type == HR_FREE) { |
c18edb34 |
887 | tr = ®_temp[i]; |
888 | goto do_alloc; |
889 | } |
890 | } |
891 | |
892 | tr = rcache_evict(); |
893 | |
894 | do_alloc: |
23686515 |
895 | tr->type = HR_CACHED; |
896 | if (do_locking) |
897 | tr->flags |= HRF_LOCKED; |
898 | if (mode != RC_GR_READ) |
899 | tr->flags |= HRF_DIRTY; |
900 | tr->greg = r; |
c18edb34 |
901 | tr->stamp = rcache_counter; |
23686515 |
902 | ret = tr->hreg; |
903 | |
904 | if (mode != RC_GR_WRITE) { |
905 | if (gconst_check(r)) { |
906 | if (gconst_try_read(ret, r)) |
907 | tr->flags |= HRF_DIRTY; |
908 | } |
909 | else |
910 | emith_ctx_read(tr->hreg, r * 4); |
911 | } |
912 | |
913 | end: |
914 | if (mode != RC_GR_READ) |
915 | gconst_kill(r); |
916 | |
917 | return ret; |
918 | } |
919 | |
920 | static int rcache_get_reg(sh2_reg_e r, rc_gr_mode mode) |
921 | { |
922 | return rcache_get_reg_(r, mode, 1); |
679af8a3 |
923 | } |
924 | |
c18edb34 |
925 | static int rcache_get_tmp(void) |
679af8a3 |
926 | { |
c18edb34 |
927 | temp_reg_t *tr; |
928 | int i; |
929 | |
930 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
23686515 |
931 | if (reg_temp[i].type == HR_FREE) { |
c18edb34 |
932 | tr = ®_temp[i]; |
933 | goto do_alloc; |
934 | } |
935 | |
936 | tr = rcache_evict(); |
937 | |
938 | do_alloc: |
939 | tr->type = HR_TEMP; |
23686515 |
940 | return tr->hreg; |
c18edb34 |
941 | } |
942 | |
898d51a7 |
943 | static int rcache_get_hr_id(int hr) |
80599a42 |
944 | { |
898d51a7 |
945 | int i; |
80599a42 |
946 | |
947 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
898d51a7 |
948 | if (reg_temp[i].hreg == hr) |
80599a42 |
949 | break; |
950 | |
04092e32 |
951 | if (i == ARRAY_SIZE(reg_temp)) // can't happen |
952 | exit(1); |
80599a42 |
953 | |
23686515 |
954 | if (reg_temp[i].type == HR_CACHED) { |
80599a42 |
955 | // writeback |
23686515 |
956 | if (reg_temp[i].flags & HRF_DIRTY) |
957 | emith_ctx_write(reg_temp[i].hreg, reg_temp[i].greg * 4); |
958 | gconst_check_evict(reg_temp[i].greg); |
80599a42 |
959 | } |
960 | else if (reg_temp[i].type == HR_TEMP) { |
898d51a7 |
961 | printf("host reg %d already used, aborting\n", hr); |
80599a42 |
962 | exit(1); |
963 | } |
964 | |
23686515 |
965 | reg_temp[i].type = HR_FREE; |
966 | reg_temp[i].flags = 0; |
967 | |
80599a42 |
968 | return i; |
969 | } |
970 | |
898d51a7 |
971 | static int rcache_get_arg_id(int arg) |
972 | { |
973 | int r = 0; |
974 | host_arg2reg(r, arg); |
975 | return rcache_get_hr_id(r); |
976 | } |
977 | |
80599a42 |
978 | // get a reg to be used as function arg |
80599a42 |
979 | static int rcache_get_tmp_arg(int arg) |
980 | { |
981 | int id = rcache_get_arg_id(arg); |
982 | reg_temp[id].type = HR_TEMP; |
983 | |
23686515 |
984 | return reg_temp[id].hreg; |
80599a42 |
985 | } |
986 | |
898d51a7 |
987 | // ... as return value after a call |
988 | static int rcache_get_tmp_ret(void) |
989 | { |
990 | int id = rcache_get_hr_id(RET_REG); |
991 | reg_temp[id].type = HR_TEMP; |
992 | |
993 | return reg_temp[id].hreg; |
994 | } |
995 | |
23686515 |
996 | // same but caches a reg. RC_GR_READ only. |
80599a42 |
997 | static int rcache_get_reg_arg(int arg, sh2_reg_e r) |
998 | { |
999 | int i, srcr, dstr, dstid; |
04092e32 |
1000 | int dirty = 0, src_dirty = 0; |
80599a42 |
1001 | |
1002 | dstid = rcache_get_arg_id(arg); |
23686515 |
1003 | dstr = reg_temp[dstid].hreg; |
80599a42 |
1004 | |
1005 | // maybe already statically mapped? |
23686515 |
1006 | srcr = get_reg_static(r, RC_GR_READ); |
80599a42 |
1007 | if (srcr != -1) |
1008 | goto do_cache; |
1009 | |
1010 | // maybe already cached? |
1011 | for (i = ARRAY_SIZE(reg_temp) - 1; i >= 0; i--) { |
23686515 |
1012 | if ((reg_temp[i].type == HR_CACHED) && |
1013 | reg_temp[i].greg == r) |
80599a42 |
1014 | { |
23686515 |
1015 | srcr = reg_temp[i].hreg; |
04092e32 |
1016 | if (reg_temp[i].flags & HRF_DIRTY) |
1017 | src_dirty = 1; |
80599a42 |
1018 | goto do_cache; |
1019 | } |
1020 | } |
1021 | |
1022 | // must read |
1023 | srcr = dstr; |
23686515 |
1024 | if (gconst_check(r)) { |
1025 | if (gconst_try_read(srcr, r)) |
1026 | dirty = 1; |
1027 | } |
1028 | else |
1029 | emith_ctx_read(srcr, r * 4); |
80599a42 |
1030 | |
1031 | do_cache: |
23686515 |
1032 | if (dstr != srcr) |
80599a42 |
1033 | emith_move_r_r(dstr, srcr); |
04092e32 |
1034 | #if 1 |
1035 | else |
1036 | dirty |= src_dirty; |
1037 | |
1038 | if (dirty) |
1039 | // must clean, callers might want to modify the arg before call |
1040 | emith_ctx_write(dstr, r * 4); |
1041 | #else |
1042 | if (dirty) |
1043 | reg_temp[dstid].flags |= HRF_DIRTY; |
1044 | #endif |
80599a42 |
1045 | |
1046 | reg_temp[dstid].stamp = ++rcache_counter; |
1047 | reg_temp[dstid].type = HR_CACHED; |
23686515 |
1048 | reg_temp[dstid].greg = r; |
1049 | reg_temp[dstid].flags |= HRF_LOCKED; |
80599a42 |
1050 | return dstr; |
1051 | } |
1052 | |
c18edb34 |
1053 | static void rcache_free_tmp(int hr) |
1054 | { |
1055 | int i; |
1056 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
23686515 |
1057 | if (reg_temp[i].hreg == hr) |
c18edb34 |
1058 | break; |
1059 | |
80599a42 |
1060 | if (i == ARRAY_SIZE(reg_temp) || reg_temp[i].type != HR_TEMP) { |
c18edb34 |
1061 | printf("rcache_free_tmp fail: #%i hr %d, type %d\n", i, hr, reg_temp[i].type); |
80599a42 |
1062 | return; |
1063 | } |
1064 | |
1065 | reg_temp[i].type = HR_FREE; |
23686515 |
1066 | reg_temp[i].flags = 0; |
1067 | } |
1068 | |
1069 | static void rcache_unlock(int hr) |
1070 | { |
1071 | int i; |
1072 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
1073 | if (reg_temp[i].type == HR_CACHED && reg_temp[i].hreg == hr) |
1074 | reg_temp[i].flags &= ~HRF_LOCKED; |
1075 | } |
1076 | |
1077 | static void rcache_unlock_all(void) |
1078 | { |
1079 | int i; |
1080 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
1081 | reg_temp[i].flags &= ~HRF_LOCKED; |
c18edb34 |
1082 | } |
1083 | |
759c9d38 |
1084 | #ifdef DRC_CMP |
e9a11abb |
1085 | static u32 rcache_used_hreg_mask(void) |
6d797957 |
1086 | { |
1087 | u32 mask = 0; |
1088 | int i; |
1089 | |
1090 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
1091 | if (reg_temp[i].type != HR_FREE) |
1092 | mask |= 1 << reg_temp[i].hreg; |
1093 | |
1094 | return mask; |
1095 | } |
759c9d38 |
1096 | #endif |
6d797957 |
1097 | |
80599a42 |
1098 | static void rcache_clean(void) |
c18edb34 |
1099 | { |
1100 | int i; |
23686515 |
1101 | gconst_clean(); |
1102 | |
80599a42 |
1103 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) |
23686515 |
1104 | if (reg_temp[i].type == HR_CACHED && (reg_temp[i].flags & HRF_DIRTY)) { |
c18edb34 |
1105 | // writeback |
23686515 |
1106 | emith_ctx_write(reg_temp[i].hreg, reg_temp[i].greg * 4); |
1107 | reg_temp[i].flags &= ~HRF_DIRTY; |
c18edb34 |
1108 | } |
80599a42 |
1109 | } |
1110 | |
1111 | static void rcache_invalidate(void) |
1112 | { |
1113 | int i; |
23686515 |
1114 | for (i = 0; i < ARRAY_SIZE(reg_temp); i++) { |
c18edb34 |
1115 | reg_temp[i].type = HR_FREE; |
23686515 |
1116 | reg_temp[i].flags = 0; |
1117 | } |
c18edb34 |
1118 | rcache_counter = 0; |
23686515 |
1119 | |
1120 | gconst_invalidate(); |
c18edb34 |
1121 | } |
1122 | |
80599a42 |
1123 | static void rcache_flush(void) |
1124 | { |
1125 | rcache_clean(); |
1126 | rcache_invalidate(); |
1127 | } |
1128 | |
c18edb34 |
1129 | // --------------------------------------------------------------- |
1130 | |
23686515 |
1131 | static int emit_get_rbase_and_offs(u32 a, u32 *offs) |
1132 | { |
23686515 |
1133 | u32 mask = 0; |
a2b8c5a5 |
1134 | int poffs; |
23686515 |
1135 | int hr; |
1136 | |
a2b8c5a5 |
1137 | poffs = dr_ctx_get_mem_ptr(a, &mask); |
23686515 |
1138 | if (poffs == -1) |
1139 | return -1; |
1140 | |
a2b8c5a5 |
1141 | // XXX: could use some related reg |
23686515 |
1142 | hr = rcache_get_tmp(); |
898d51a7 |
1143 | emith_ctx_read_ptr(hr, poffs); |
1144 | emith_add_r_r_ptr_imm(hr, hr, a & mask & ~0xff); |
23686515 |
1145 | *offs = a & 0xff; // XXX: ARM oriented.. |
1146 | return hr; |
1147 | } |
1148 | |
c18edb34 |
1149 | static void emit_move_r_imm32(sh2_reg_e dst, u32 imm) |
1150 | { |
23686515 |
1151 | #if PROPAGATE_CONSTANTS |
1152 | gconst_new(dst, imm); |
1153 | #else |
c18edb34 |
1154 | int hr = rcache_get_reg(dst, RC_GR_WRITE); |
1155 | emith_move_r_imm(hr, imm); |
23686515 |
1156 | #endif |
c18edb34 |
1157 | } |
1158 | |
1159 | static void emit_move_r_r(sh2_reg_e dst, sh2_reg_e src) |
1160 | { |
1161 | int hr_d = rcache_get_reg(dst, RC_GR_WRITE); |
1162 | int hr_s = rcache_get_reg(src, RC_GR_READ); |
1163 | |
1164 | emith_move_r_r(hr_d, hr_s); |
679af8a3 |
1165 | } |
1166 | |
52d759c3 |
1167 | // T must be clear, and comparison done just before this |
1168 | static void emit_or_t_if_eq(int srr) |
1169 | { |
1170 | EMITH_SJMP_START(DCOND_NE); |
1171 | emith_or_r_imm_c(DCOND_EQ, srr, T); |
1172 | EMITH_SJMP_END(DCOND_NE); |
1173 | } |
1174 | |
80599a42 |
1175 | // arguments must be ready |
1176 | // reg cache must be clean before call |
23686515 |
1177 | static int emit_memhandler_read_(int size, int ram_check) |
679af8a3 |
1178 | { |
895d1512 |
1179 | int arg1; |
1180 | #if 0 |
1181 | int arg0; |
b081408f |
1182 | host_arg2reg(arg0, 0); |
895d1512 |
1183 | #endif |
b081408f |
1184 | |
23686515 |
1185 | rcache_clean(); |
1186 | |
b081408f |
1187 | // must writeback cycles for poll detection stuff |
23686515 |
1188 | // FIXME: rm |
b081408f |
1189 | if (reg_map_g2h[SHR_SR] != -1) |
1190 | emith_ctx_write(reg_map_g2h[SHR_SR], SHR_SR * 4); |
23686515 |
1191 | |
b081408f |
1192 | arg1 = rcache_get_tmp_arg(1); |
898d51a7 |
1193 | emith_move_r_r_ptr(arg1, CONTEXT_REG); |
b081408f |
1194 | |
fa841b44 |
1195 | #if 0 // can't do this because of unmapped reads |
1196 | // ndef PDB_NET |
23686515 |
1197 | if (ram_check && Pico.rom == (void *)0x02000000 && Pico32xMem->sdram == (void *)0x06000000) { |
b081408f |
1198 | int tmp = rcache_get_tmp(); |
1199 | emith_and_r_r_imm(tmp, arg0, 0xfb000000); |
1200 | emith_cmp_r_imm(tmp, 0x02000000); |
1201 | switch (size) { |
1202 | case 0: // 8 |
1203 | EMITH_SJMP3_START(DCOND_NE); |
1204 | emith_eor_r_imm_c(DCOND_EQ, arg0, 1); |
1205 | emith_read8_r_r_offs_c(DCOND_EQ, arg0, arg0, 0); |
1206 | EMITH_SJMP3_MID(DCOND_NE); |
5686d931 |
1207 | emith_call_cond(DCOND_NE, sh2_drc_read8); |
b081408f |
1208 | EMITH_SJMP3_END(); |
1209 | break; |
1210 | case 1: // 16 |
1211 | EMITH_SJMP3_START(DCOND_NE); |
1212 | emith_read16_r_r_offs_c(DCOND_EQ, arg0, arg0, 0); |
1213 | EMITH_SJMP3_MID(DCOND_NE); |
5686d931 |
1214 | emith_call_cond(DCOND_NE, sh2_drc_read16); |
b081408f |
1215 | EMITH_SJMP3_END(); |
1216 | break; |
1217 | case 2: // 32 |
1218 | EMITH_SJMP3_START(DCOND_NE); |
1219 | emith_read_r_r_offs_c(DCOND_EQ, arg0, arg0, 0); |
1220 | emith_ror_c(DCOND_EQ, arg0, arg0, 16); |
1221 | EMITH_SJMP3_MID(DCOND_NE); |
5686d931 |
1222 | emith_call_cond(DCOND_NE, sh2_drc_read32); |
b081408f |
1223 | EMITH_SJMP3_END(); |
1224 | break; |
1225 | } |
1226 | } |
1227 | else |
1228 | #endif |
1229 | { |
1230 | switch (size) { |
1231 | case 0: // 8 |
5686d931 |
1232 | emith_call(sh2_drc_read8); |
b081408f |
1233 | break; |
1234 | case 1: // 16 |
5686d931 |
1235 | emith_call(sh2_drc_read16); |
b081408f |
1236 | break; |
1237 | case 2: // 32 |
5686d931 |
1238 | emith_call(sh2_drc_read32); |
b081408f |
1239 | break; |
1240 | } |
679af8a3 |
1241 | } |
80599a42 |
1242 | rcache_invalidate(); |
97e95a29 |
1243 | |
1244 | if (reg_map_g2h[SHR_SR] != -1) |
1245 | emith_ctx_read(reg_map_g2h[SHR_SR], SHR_SR * 4); |
1246 | |
898d51a7 |
1247 | return rcache_get_tmp_ret(); |
80599a42 |
1248 | } |
679af8a3 |
1249 | |
23686515 |
1250 | static int emit_memhandler_read(int size) |
1251 | { |
1252 | return emit_memhandler_read_(size, 1); |
1253 | } |
1254 | |
1255 | static int emit_memhandler_read_rr(sh2_reg_e rd, sh2_reg_e rs, u32 offs, int size) |
1256 | { |
1257 | int hr, hr2, ram_check = 1; |
1258 | u32 val, offs2; |
1259 | |
1260 | if (gconst_get(rs, &val)) { |
1261 | hr = emit_get_rbase_and_offs(val + offs, &offs2); |
1262 | if (hr != -1) { |
1263 | hr2 = rcache_get_reg(rd, RC_GR_WRITE); |
1264 | switch (size) { |
1265 | case 0: // 8 |
1266 | emith_read8_r_r_offs(hr2, hr, offs2 ^ 1); |
1267 | emith_sext(hr2, hr2, 8); |
1268 | break; |
1269 | case 1: // 16 |
1270 | emith_read16_r_r_offs(hr2, hr, offs2); |
1271 | emith_sext(hr2, hr2, 16); |
1272 | break; |
1273 | case 2: // 32 |
1274 | emith_read_r_r_offs(hr2, hr, offs2); |
1275 | emith_ror(hr2, hr2, 16); |
1276 | break; |
1277 | } |
1278 | rcache_free_tmp(hr); |
1279 | return hr2; |
1280 | } |
1281 | |
1282 | ram_check = 0; |
1283 | } |
1284 | |
1285 | hr = rcache_get_reg_arg(0, rs); |
1286 | if (offs != 0) |
1287 | emith_add_r_imm(hr, offs); |
1288 | hr = emit_memhandler_read_(size, ram_check); |
1289 | hr2 = rcache_get_reg(rd, RC_GR_WRITE); |
1290 | if (size != 2) { |
1291 | emith_sext(hr2, hr, (size == 1) ? 16 : 8); |
1292 | } else |
1293 | emith_move_r_r(hr2, hr); |
1294 | rcache_free_tmp(hr); |
1295 | |
1296 | return hr2; |
1297 | } |
1298 | |
001f73a0 |
1299 | static void emit_memhandler_write(int size) |
80599a42 |
1300 | { |
1301 | int ctxr; |
1302 | host_arg2reg(ctxr, 2); |
97e95a29 |
1303 | if (reg_map_g2h[SHR_SR] != -1) |
1304 | emith_ctx_write(reg_map_g2h[SHR_SR], SHR_SR * 4); |
1305 | |
6976a547 |
1306 | rcache_clean(); |
1307 | |
80599a42 |
1308 | switch (size) { |
1309 | case 0: // 8 |
e05b81fc |
1310 | // XXX: consider inlining sh2_drc_write8 |
d056bef8 |
1311 | emith_call(sh2_drc_write8); |
80599a42 |
1312 | break; |
1313 | case 1: // 16 |
d056bef8 |
1314 | emith_call(sh2_drc_write16); |
80599a42 |
1315 | break; |
1316 | case 2: // 32 |
898d51a7 |
1317 | emith_move_r_r_ptr(ctxr, CONTEXT_REG); |
5686d931 |
1318 | emith_call(sh2_drc_write32); |
80599a42 |
1319 | break; |
1320 | } |
97e95a29 |
1321 | |
d056bef8 |
1322 | rcache_invalidate(); |
97e95a29 |
1323 | if (reg_map_g2h[SHR_SR] != -1) |
1324 | emith_ctx_read(reg_map_g2h[SHR_SR], SHR_SR * 4); |
679af8a3 |
1325 | } |
80599a42 |
1326 | |
52d759c3 |
1327 | // @(Rx,Ry) |
1328 | static int emit_indirect_indexed_read(int rx, int ry, int size) |
1329 | { |
1330 | int a0, t; |
52d759c3 |
1331 | a0 = rcache_get_reg_arg(0, rx); |
1332 | t = rcache_get_reg(ry, RC_GR_READ); |
1333 | emith_add_r_r(a0, t); |
1334 | return emit_memhandler_read(size); |
1335 | } |
1336 | |
f0d7b1fa |
1337 | // read @Rn, @rm |
1338 | static void emit_indirect_read_double(u32 *rnr, u32 *rmr, int rn, int rm, int size) |
1339 | { |
1340 | int tmp; |
1341 | |
f0d7b1fa |
1342 | rcache_get_reg_arg(0, rn); |
1343 | tmp = emit_memhandler_read(size); |
1344 | emith_ctx_write(tmp, offsetof(SH2, drc_tmp)); |
1345 | rcache_free_tmp(tmp); |
1346 | tmp = rcache_get_reg(rn, RC_GR_RMW); |
1347 | emith_add_r_imm(tmp, 1 << size); |
23686515 |
1348 | rcache_unlock(tmp); |
f0d7b1fa |
1349 | |
f0d7b1fa |
1350 | rcache_get_reg_arg(0, rm); |
1351 | *rmr = emit_memhandler_read(size); |
1352 | *rnr = rcache_get_tmp(); |
1353 | emith_ctx_read(*rnr, offsetof(SH2, drc_tmp)); |
1354 | tmp = rcache_get_reg(rm, RC_GR_RMW); |
1355 | emith_add_r_imm(tmp, 1 << size); |
23686515 |
1356 | rcache_unlock(tmp); |
f0d7b1fa |
1357 | } |
1358 | |
8796b7ee |
1359 | static void emit_do_static_regs(int is_write, int tmpr) |
f0d7b1fa |
1360 | { |
8796b7ee |
1361 | int i, r, count; |
1362 | |
1363 | for (i = 0; i < ARRAY_SIZE(reg_map_g2h); i++) { |
1364 | r = reg_map_g2h[i]; |
1365 | if (r == -1) |
1366 | continue; |
1367 | |
1368 | for (count = 1; i < ARRAY_SIZE(reg_map_g2h) - 1; i++, r++) { |
1369 | if (reg_map_g2h[i + 1] != r + 1) |
1370 | break; |
1371 | count++; |
1372 | } |
1373 | |
1374 | if (count > 1) { |
1375 | // i, r point to last item |
1376 | if (is_write) |
1377 | emith_ctx_write_multiple(r - count + 1, (i - count + 1) * 4, count, tmpr); |
1378 | else |
1379 | emith_ctx_read_multiple(r - count + 1, (i - count + 1) * 4, count, tmpr); |
1380 | } else { |
1381 | if (is_write) |
1382 | emith_ctx_write(r, i * 4); |
1383 | else |
1384 | emith_ctx_read(r, i * 4); |
1385 | } |
f0d7b1fa |
1386 | } |
1387 | } |
1388 | |
898d51a7 |
1389 | /* just after lookup function, jump to address returned */ |
e05b81fc |
1390 | static void emit_block_entry(void) |
f0d7b1fa |
1391 | { |
c25d78ee |
1392 | #if (DRC_DEBUG & 8) || defined(PDB) |
1393 | int arg1, arg2; |
e05b81fc |
1394 | host_arg2reg(arg1, 1); |
1395 | host_arg2reg(arg2, 2); |
8796b7ee |
1396 | |
5686d931 |
1397 | emit_do_static_regs(1, arg2); |
898d51a7 |
1398 | emith_move_r_r_ptr(arg1, CONTEXT_REG); |
e05b81fc |
1399 | emith_move_r_r(arg2, rcache_get_reg(SHR_SR, RC_GR_READ)); |
5686d931 |
1400 | emith_call(sh2_drc_log_entry); |
e05b81fc |
1401 | rcache_invalidate(); |
1402 | #endif |
898d51a7 |
1403 | emith_tst_r_r(RET_REG, RET_REG); |
e05b81fc |
1404 | EMITH_SJMP_START(DCOND_EQ); |
898d51a7 |
1405 | emith_jump_reg_c(DCOND_NE, RET_REG); |
e05b81fc |
1406 | EMITH_SJMP_END(DCOND_EQ); |
1407 | } |
8796b7ee |
1408 | |
18b94127 |
1409 | #define DELAY_SAVE_T(sr) { \ |
1410 | emith_bic_r_imm(sr, T_save); \ |
1411 | emith_tst_r_imm(sr, T); \ |
1412 | EMITH_SJMP_START(DCOND_EQ); \ |
1413 | emith_or_r_imm_c(DCOND_NE, sr, T_save); \ |
1414 | EMITH_SJMP_END(DCOND_EQ); \ |
18b94127 |
1415 | } |
e898de13 |
1416 | |
e05b81fc |
1417 | #define FLUSH_CYCLES(sr) \ |
1418 | if (cycles > 0) { \ |
1419 | emith_sub_r_imm(sr, cycles << 12); \ |
1420 | cycles = 0; \ |
1421 | } |
1422 | |
00faec9c |
1423 | static void *dr_get_pc_base(u32 pc, int is_slave); |
18b94127 |
1424 | |
e05b81fc |
1425 | static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id) |
679af8a3 |
1426 | { |
18b94127 |
1427 | u32 branch_target_pc[MAX_LOCAL_BRANCHES]; |
a2b8c5a5 |
1428 | void *branch_target_ptr[MAX_LOCAL_BRANCHES]; |
18b94127 |
1429 | int branch_target_count = 0; |
1430 | void *branch_patch_ptr[MAX_LOCAL_BRANCHES]; |
1431 | u32 branch_patch_pc[MAX_LOCAL_BRANCHES]; |
1432 | int branch_patch_count = 0; |
04092e32 |
1433 | u32 literal_addr[MAX_LITERALS]; |
1434 | int literal_addr_count = 0; |
e1553677 |
1435 | u8 op_flags[BLOCK_INSN_LIMIT]; |
18b94127 |
1436 | struct { |
18b94127 |
1437 | u32 test_irq:1; |
bf092a36 |
1438 | u32 pending_branch_direct:1; |
1439 | u32 pending_branch_indirect:1; |
51d86e55 |
1440 | u32 literals_disabled:1; |
18b94127 |
1441 | } drcf = { 0, }; |
1442 | |
bf092a36 |
1443 | // PC of current, first, last SH2 insn |
1444 | u32 pc, base_pc, end_pc; |
1445 | u32 end_literals; |
228ee974 |
1446 | void *block_entry_ptr; |
1447 | struct block_desc *block; |
23686515 |
1448 | u16 *dr_pc_base; |
bf092a36 |
1449 | struct op_data *opd; |
18b94127 |
1450 | int blkid_main = 0; |
23686515 |
1451 | int skip_op = 0; |
18b94127 |
1452 | u32 tmp, tmp2; |
1453 | int cycles; |
228ee974 |
1454 | int i, v; |
18b94127 |
1455 | int op; |
18b94127 |
1456 | |
1457 | base_pc = sh2->pc; |
51d86e55 |
1458 | drcf.literals_disabled = literal_disabled_frames != 0; |
679af8a3 |
1459 | |
23686515 |
1460 | // get base/validate PC |
1461 | dr_pc_base = dr_get_pc_base(base_pc, sh2->is_slave); |
1462 | if (dr_pc_base == (void *)-1) { |
18b94127 |
1463 | printf("invalid PC, aborting: %08x\n", base_pc); |
f4bb5d6b |
1464 | // FIXME: be less destructive |
1465 | exit(1); |
1466 | } |
1467 | |
f4bb5d6b |
1468 | tcache_ptr = tcache_ptrs[tcache_id]; |
f4bb5d6b |
1469 | |
18b94127 |
1470 | // predict tcache overflow |
f4bb5d6b |
1471 | tmp = tcache_ptr - tcache_bases[tcache_id]; |
44e6452e |
1472 | if (tmp > tcache_sizes[tcache_id] - MAX_BLOCK_SIZE) { |
fcdefcf6 |
1473 | dbg(1, "tcache %d overflow", tcache_id); |
18b94127 |
1474 | return NULL; |
44e6452e |
1475 | } |
18b94127 |
1476 | |
bf092a36 |
1477 | // initial passes to disassemble and analyze the block |
1478 | scan_block(base_pc, sh2->is_slave, op_flags, &end_pc, &end_literals); |
569420b0 |
1479 | |
51d86e55 |
1480 | if (drcf.literals_disabled) |
1481 | end_literals = end_pc; |
1482 | |
1483 | block = dr_add_block(base_pc, end_literals - base_pc, |
1484 | end_pc - base_pc, sh2->is_slave, &blkid_main); |
228ee974 |
1485 | if (block == NULL) |
569420b0 |
1486 | return NULL; |
1487 | |
228ee974 |
1488 | block_entry_ptr = tcache_ptr; |
4943816b |
1489 | dbg(2, "== %csh2 block #%d,%d %08x-%08x -> %p", sh2->is_slave ? 's' : 'm', |
228ee974 |
1490 | tcache_id, blkid_main, base_pc, end_pc, block_entry_ptr); |
18b94127 |
1491 | |
00a725a8 |
1492 | dr_link_blocks(&block->entryp[0], tcache_id); |
44e6452e |
1493 | |
00faec9c |
1494 | // collect branch_targets that don't land on delay slots |
bf092a36 |
1495 | for (pc = base_pc, i = 0; pc < end_pc; i++, pc += 2) { |
1496 | if (!(op_flags[i] & OF_BTARGET)) |
00faec9c |
1497 | continue; |
bf092a36 |
1498 | if (op_flags[i] & OF_DELAY_OP) { |
1499 | op_flags[i] &= ~OF_BTARGET; |
18b94127 |
1500 | continue; |
1501 | } |
00faec9c |
1502 | ADD_TO_ARRAY(branch_target_pc, branch_target_count, pc, break); |
e898de13 |
1503 | } |
c25d78ee |
1504 | |
c25d78ee |
1505 | if (branch_target_count > 0) { |
1506 | memset(branch_target_ptr, 0, sizeof(branch_target_ptr[0]) * branch_target_count); |
c25d78ee |
1507 | } |
679af8a3 |
1508 | |
6976a547 |
1509 | // clear stale state after compile errors |
1510 | rcache_invalidate(); |
1511 | |
18b94127 |
1512 | // ------------------------------------------------- |
bf092a36 |
1513 | // 3rd pass: actual compilation |
18b94127 |
1514 | pc = base_pc; |
bf092a36 |
1515 | cycles = 0; |
1516 | for (i = 0; pc < end_pc; i++) |
679af8a3 |
1517 | { |
bf092a36 |
1518 | u32 delay_dep_fw = 0, delay_dep_bk = 0; |
18b94127 |
1519 | u32 tmp3, tmp4, sr; |
1520 | |
bf092a36 |
1521 | opd = &ops[i]; |
23686515 |
1522 | op = FETCH_OP(pc); |
1523 | |
bf092a36 |
1524 | #if (DRC_DEBUG & 2) |
1525 | insns_compiled++; |
1526 | #endif |
1527 | #if (DRC_DEBUG & 4) |
1528 | DasmSH2(sh2dasm_buff, pc, op); |
1529 | printf("%c%08x %04x %s\n", (op_flags[i] & OF_BTARGET) ? '*' : ' ', |
1530 | pc, op, sh2dasm_buff); |
1531 | #endif |
1532 | |
1533 | if ((op_flags[i] & OF_BTARGET) || pc == base_pc) |
18b94127 |
1534 | { |
a2b8c5a5 |
1535 | if (pc != base_pc) |
18b94127 |
1536 | { |
18b94127 |
1537 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
e05b81fc |
1538 | FLUSH_CYCLES(sr); |
bf092a36 |
1539 | rcache_flush(); |
18b94127 |
1540 | |
bf092a36 |
1541 | // make block entry |
228ee974 |
1542 | v = block->entry_count; |
f0ed9e38 |
1543 | if (v < ARRAY_SIZE(block->entryp)) |
1544 | { |
1545 | struct block_entry *be_old; |
1546 | |
228ee974 |
1547 | block->entryp[v].pc = pc; |
1548 | block->entryp[v].tcache_ptr = tcache_ptr; |
00a725a8 |
1549 | block->entryp[v].links = NULL; |
228ee974 |
1550 | #if (DRC_DEBUG & 2) |
1551 | block->entryp[v].block = block; |
1552 | #endif |
f0ed9e38 |
1553 | be_old = dr_get_entry(pc, sh2->is_slave, &tcache_id); |
1554 | if (be_old != NULL) { |
1555 | dbg(1, "entry override for %08x, was %p", pc, be_old->tcache_ptr); |
1556 | kill_block_entry(be_old, tcache_id); |
1557 | } |
1558 | |
228ee974 |
1559 | add_to_hashlist(&block->entryp[v], tcache_id); |
1560 | block->entry_count++; |
04092e32 |
1561 | |
bf092a36 |
1562 | dbg(2, "-- %csh2 block #%d,%d entry %08x -> %p", |
1563 | sh2->is_slave ? 's' : 'm', tcache_id, blkid_main, |
1564 | pc, tcache_ptr); |
18b94127 |
1565 | |
00a725a8 |
1566 | // since we made a block entry, link any other blocks |
1567 | // that jump to current pc |
1568 | dr_link_blocks(&block->entryp[v], tcache_id); |
228ee974 |
1569 | } |
1570 | else { |
1571 | dbg(1, "too many entryp for block #%d,%d pc=%08x", |
1572 | tcache_id, blkid_main, pc); |
1573 | } |
bf092a36 |
1574 | |
1575 | do_host_disasm(tcache_id); |
18b94127 |
1576 | } |
bf092a36 |
1577 | |
1578 | v = find_in_array(branch_target_pc, branch_target_count, pc); |
1579 | if (v >= 0) |
1580 | branch_target_ptr[v] = tcache_ptr; |
18b94127 |
1581 | |
1582 | // must update PC |
1583 | emit_move_r_imm32(SHR_PC, pc); |
1584 | rcache_clean(); |
1585 | |
d602fd4f |
1586 | #if (DRC_DEBUG & 0x10) |
1587 | rcache_get_reg_arg(0, SHR_PC); |
1588 | tmp = emit_memhandler_read(2); |
1589 | tmp2 = rcache_get_tmp(); |
1590 | tmp3 = rcache_get_tmp(); |
1591 | emith_move_r_imm(tmp2, FETCH32(pc)); |
1592 | emith_move_r_imm(tmp3, 0); |
1593 | emith_cmp_r_r(tmp, tmp2); |
1594 | EMITH_SJMP_START(DCOND_EQ); |
1595 | emith_read_r_r_offs_c(DCOND_NE, tmp3, tmp3, 0); // crash |
1596 | EMITH_SJMP_END(DCOND_EQ); |
1597 | rcache_free_tmp(tmp); |
1598 | rcache_free_tmp(tmp2); |
1599 | rcache_free_tmp(tmp3); |
1600 | #endif |
1601 | |
18b94127 |
1602 | // check cycles |
1603 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
1604 | emith_cmp_r_imm(sr, 0); |
1605 | emith_jump_cond(DCOND_LE, sh2_drc_exit); |
23686515 |
1606 | do_host_disasm(tcache_id); |
04092e32 |
1607 | rcache_unlock_all(); |
18b94127 |
1608 | } |
e898de13 |
1609 | |
00faec9c |
1610 | #ifdef DRC_CMP |
bf092a36 |
1611 | if (!(op_flags[i] & OF_DELAY_OP)) { |
00faec9c |
1612 | emit_move_r_imm32(SHR_PC, pc); |
1613 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1614 | FLUSH_CYCLES(sr); |
6d797957 |
1615 | rcache_clean(); |
1616 | |
1617 | tmp = rcache_used_hreg_mask(); |
1618 | emith_save_caller_regs(tmp); |
00faec9c |
1619 | emit_do_static_regs(1, 0); |
1620 | emith_pass_arg_r(0, CONTEXT_REG); |
1621 | emith_call(do_sh2_cmp); |
6d797957 |
1622 | emith_restore_caller_regs(tmp); |
00faec9c |
1623 | } |
679af8a3 |
1624 | #endif |
679af8a3 |
1625 | |
1626 | pc += 2; |
679af8a3 |
1627 | |
23686515 |
1628 | if (skip_op > 0) { |
1629 | skip_op--; |
1630 | continue; |
1631 | } |
1632 | |
bf092a36 |
1633 | if (op_flags[i] & OF_DELAY_OP) |
1634 | { |
1635 | // handle delay slot dependencies |
1636 | delay_dep_fw = opd->dest & ops[i-1].source; |
1637 | delay_dep_bk = opd->source & ops[i-1].dest; |
1638 | if (delay_dep_fw & BITMASK1(SHR_T)) { |
1639 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1640 | DELAY_SAVE_T(sr); |
1641 | } |
fa841b44 |
1642 | if (delay_dep_bk & BITMASK1(SHR_PC)) { |
1643 | if (opd->op != OP_LOAD_POOL && opd->op != OP_MOVA) { |
1644 | // can only be those 2 really.. |
f8675e28 |
1645 | elprintf_sh2(sh2, EL_ANOMALY, |
1646 | "drc: illegal slot insn %04x @ %08x?", op, pc - 2); |
fa841b44 |
1647 | } |
1648 | if (opd->imm != 0) |
1649 | ; // addr already resolved somehow |
1650 | else { |
1651 | switch (ops[i-1].op) { |
1652 | case OP_BRANCH: |
1653 | emit_move_r_imm32(SHR_PC, ops[i-1].imm); |
1654 | break; |
1655 | case OP_BRANCH_CT: |
1656 | case OP_BRANCH_CF: |
1657 | tmp = rcache_get_reg(SHR_PC, RC_GR_WRITE); |
1658 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
1659 | emith_move_r_imm(tmp, pc); |
1660 | emith_tst_r_imm(sr, T); |
1661 | tmp2 = ops[i-1].op == OP_BRANCH_CT ? DCOND_NE : DCOND_EQ; |
1662 | emith_move_r_imm_c(tmp2, tmp, ops[i-1].imm); |
1663 | break; |
1664 | // case OP_BRANCH_R OP_BRANCH_RF - PC already loaded |
1665 | } |
1666 | } |
1667 | } |
1668 | //if (delay_dep_fw & ~BITMASK1(SHR_T)) |
1669 | // dbg(1, "unhandled delay_dep_fw: %x", delay_dep_fw & ~BITMASK1(SHR_T)); |
1670 | if (delay_dep_bk & ~BITMASK2(SHR_PC, SHR_PR)) |
bf092a36 |
1671 | dbg(1, "unhandled delay_dep_bk: %x", delay_dep_bk); |
1672 | } |
1673 | |
1674 | switch (opd->op) |
1675 | { |
1676 | case OP_BRANCH: |
1677 | case OP_BRANCH_CT: |
1678 | case OP_BRANCH_CF: |
1679 | if (opd->dest & BITMASK1(SHR_PR)) |
1680 | emit_move_r_imm32(SHR_PR, pc + 2); |
1681 | drcf.pending_branch_direct = 1; |
1682 | goto end_op; |
1683 | |
1684 | case OP_BRANCH_R: |
1685 | if (opd->dest & BITMASK1(SHR_PR)) |
1686 | emit_move_r_imm32(SHR_PR, pc + 2); |
1687 | emit_move_r_r(SHR_PC, opd->rm); |
1688 | drcf.pending_branch_indirect = 1; |
1689 | goto end_op; |
1690 | |
1691 | case OP_BRANCH_RF: |
1692 | tmp = rcache_get_reg(SHR_PC, RC_GR_WRITE); |
1693 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1694 | if (opd->dest & BITMASK1(SHR_PR)) { |
1695 | tmp3 = rcache_get_reg(SHR_PR, RC_GR_WRITE); |
1696 | emith_move_r_imm(tmp3, pc + 2); |
1697 | emith_add_r_r_r(tmp, tmp2, tmp3); |
1698 | } |
1699 | else { |
1700 | emith_move_r_r(tmp, tmp2); |
1701 | emith_add_r_imm(tmp, pc + 2); |
1702 | } |
1703 | drcf.pending_branch_indirect = 1; |
1704 | goto end_op; |
1705 | |
1706 | case OP_SLEEP: |
1707 | printf("TODO sleep\n"); |
1708 | goto end_op; |
1709 | |
1710 | case OP_RTE: |
1711 | // pop PC |
1712 | emit_memhandler_read_rr(SHR_PC, SHR_SP, 0, 2); |
1713 | // pop SR |
1714 | tmp = rcache_get_reg_arg(0, SHR_SP); |
1715 | emith_add_r_imm(tmp, 4); |
1716 | tmp = emit_memhandler_read(2); |
1717 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1718 | emith_write_sr(sr, tmp); |
1719 | rcache_free_tmp(tmp); |
1720 | tmp = rcache_get_reg(SHR_SP, RC_GR_RMW); |
1721 | emith_add_r_imm(tmp, 4*2); |
1722 | drcf.test_irq = 1; |
1723 | drcf.pending_branch_indirect = 1; |
fa841b44 |
1724 | goto end_op; |
1725 | |
1726 | case OP_LOAD_POOL: |
1727 | #if PROPAGATE_CONSTANTS |
51d86e55 |
1728 | if (opd->imm != 0 && opd->imm < end_literals |
fa841b44 |
1729 | && literal_addr_count < MAX_LITERALS) |
1730 | { |
1731 | ADD_TO_ARRAY(literal_addr, literal_addr_count, opd->imm,); |
1732 | if (opd->size == 2) |
1733 | tmp = FETCH32(opd->imm); |
1734 | else |
1735 | tmp = (u32)(int)(signed short)FETCH_OP(opd->imm); |
1736 | gconst_new(GET_Rn(), tmp); |
1737 | } |
1738 | else |
1739 | #endif |
1740 | { |
1741 | tmp = rcache_get_tmp_arg(0); |
1742 | if (opd->imm != 0) |
1743 | emith_move_r_imm(tmp, opd->imm); |
1744 | else { |
1745 | // have to calculate read addr from PC |
1746 | tmp2 = rcache_get_reg(SHR_PC, RC_GR_READ); |
1747 | if (opd->size == 2) { |
1748 | emith_add_r_r_imm(tmp, tmp2, 2 + (op & 0xff) * 4); |
1749 | emith_bic_r_imm(tmp, 3); |
1750 | } |
1751 | else |
1752 | emith_add_r_r_imm(tmp, tmp2, 2 + (op & 0xff) * 2); |
1753 | } |
1754 | tmp2 = emit_memhandler_read(opd->size); |
1755 | tmp3 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
1756 | if (opd->size == 2) |
1757 | emith_move_r_r(tmp3, tmp2); |
1758 | else |
1759 | emith_sext(tmp3, tmp2, 16); |
1760 | rcache_free_tmp(tmp2); |
1761 | } |
1762 | goto end_op; |
1763 | |
1764 | case OP_MOVA: |
1765 | if (opd->imm != 0) |
1766 | emit_move_r_imm32(SHR_R0, opd->imm); |
1767 | else { |
1768 | tmp = rcache_get_reg(SHR_R0, RC_GR_WRITE); |
1769 | tmp2 = rcache_get_reg(SHR_PC, RC_GR_READ); |
1770 | emith_add_r_r_imm(tmp, tmp2, 2 + (op & 0xff) * 4); |
1771 | emith_bic_r_imm(tmp, 3); |
1772 | } |
1773 | goto end_op; |
bf092a36 |
1774 | } |
1775 | |
679af8a3 |
1776 | switch ((op >> 12) & 0x0f) |
1777 | { |
3863edbd |
1778 | ///////////////////////////////////////////// |
679af8a3 |
1779 | case 0x00: |
80599a42 |
1780 | switch (op & 0x0f) |
1781 | { |
1782 | case 0x02: |
1783 | tmp = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
1784 | switch (GET_Fx()) |
1785 | { |
1786 | case 0: // STC SR,Rn 0000nnnn00000010 |
1787 | tmp2 = SHR_SR; |
1788 | break; |
1789 | case 1: // STC GBR,Rn 0000nnnn00010010 |
1790 | tmp2 = SHR_GBR; |
1791 | break; |
1792 | case 2: // STC VBR,Rn 0000nnnn00100010 |
1793 | tmp2 = SHR_VBR; |
1794 | break; |
1795 | default: |
1796 | goto default_; |
1797 | } |
ed8cf79b |
1798 | tmp3 = rcache_get_reg(tmp2, RC_GR_READ); |
1799 | emith_move_r_r(tmp, tmp3); |
1800 | if (tmp2 == SHR_SR) |
18b94127 |
1801 | emith_clear_msb(tmp, tmp, 22); // reserved bits defined by ISA as 0 |
80599a42 |
1802 | goto end_op; |
80599a42 |
1803 | case 0x04: // MOV.B Rm,@(R0,Rn) 0000nnnnmmmm0100 |
1804 | case 0x05: // MOV.W Rm,@(R0,Rn) 0000nnnnmmmm0101 |
1805 | case 0x06: // MOV.L Rm,@(R0,Rn) 0000nnnnmmmm0110 |
e05b81fc |
1806 | rcache_clean(); |
1807 | tmp = rcache_get_reg_arg(1, GET_Rm()); |
1808 | tmp2 = rcache_get_reg_arg(0, SHR_R0); |
1809 | tmp3 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1810 | emith_add_r_r(tmp2, tmp3); |
001f73a0 |
1811 | emit_memhandler_write(op & 3); |
80599a42 |
1812 | goto end_op; |
1813 | case 0x07: |
1814 | // MUL.L Rm,Rn 0000nnnnmmmm0111 |
1815 | tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1816 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1817 | tmp3 = rcache_get_reg(SHR_MACL, RC_GR_WRITE); |
1818 | emith_mul(tmp3, tmp2, tmp); |
80599a42 |
1819 | goto end_op; |
1820 | case 0x08: |
80599a42 |
1821 | switch (GET_Fx()) |
1822 | { |
1823 | case 0: // CLRT 0000000000001000 |
8796b7ee |
1824 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1825 | emith_bic_r_imm(sr, T); |
80599a42 |
1826 | break; |
1827 | case 1: // SETT 0000000000011000 |
8796b7ee |
1828 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1829 | emith_or_r_imm(sr, T); |
80599a42 |
1830 | break; |
1831 | case 2: // CLRMAC 0000000000101000 |
23686515 |
1832 | emit_move_r_imm32(SHR_MACL, 0); |
1833 | emit_move_r_imm32(SHR_MACH, 0); |
80599a42 |
1834 | break; |
1835 | default: |
1836 | goto default_; |
1837 | } |
1838 | goto end_op; |
e898de13 |
1839 | case 0x09: |
80599a42 |
1840 | switch (GET_Fx()) |
1841 | { |
1842 | case 0: // NOP 0000000000001001 |
80599a42 |
1843 | break; |
1844 | case 1: // DIV0U 0000000000011001 |
8796b7ee |
1845 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
1846 | emith_bic_r_imm(sr, M|Q|T); |
80599a42 |
1847 | break; |
1848 | case 2: // MOVT Rn 0000nnnn00101001 |
8796b7ee |
1849 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
80599a42 |
1850 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
8796b7ee |
1851 | emith_clear_msb(tmp2, sr, 31); |
80599a42 |
1852 | break; |
1853 | default: |
1854 | goto default_; |
1855 | } |
1856 | goto end_op; |
1857 | case 0x0a: |
1858 | tmp = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
1859 | switch (GET_Fx()) |
1860 | { |
1861 | case 0: // STS MACH,Rn 0000nnnn00001010 |
ed8cf79b |
1862 | tmp2 = SHR_MACH; |
80599a42 |
1863 | break; |
1864 | case 1: // STS MACL,Rn 0000nnnn00011010 |
ed8cf79b |
1865 | tmp2 = SHR_MACL; |
80599a42 |
1866 | break; |
1867 | case 2: // STS PR,Rn 0000nnnn00101010 |
ed8cf79b |
1868 | tmp2 = SHR_PR; |
80599a42 |
1869 | break; |
1870 | default: |
1871 | goto default_; |
1872 | } |
ed8cf79b |
1873 | tmp2 = rcache_get_reg(tmp2, RC_GR_READ); |
80599a42 |
1874 | emith_move_r_r(tmp, tmp2); |
e898de13 |
1875 | goto end_op; |
80599a42 |
1876 | case 0x0c: // MOV.B @(R0,Rm),Rn 0000nnnnmmmm1100 |
1877 | case 0x0d: // MOV.W @(R0,Rm),Rn 0000nnnnmmmm1101 |
1878 | case 0x0e: // MOV.L @(R0,Rm),Rn 0000nnnnmmmm1110 |
52d759c3 |
1879 | tmp = emit_indirect_indexed_read(SHR_R0, GET_Rm(), op & 3); |
80599a42 |
1880 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
80599a42 |
1881 | if ((op & 3) != 2) { |
1882 | emith_sext(tmp2, tmp, (op & 1) ? 16 : 8); |
1883 | } else |
1884 | emith_move_r_r(tmp2, tmp); |
52d759c3 |
1885 | rcache_free_tmp(tmp); |
80599a42 |
1886 | goto end_op; |
1887 | case 0x0f: // MAC.L @Rm+,@Rn+ 0000nnnnmmmm1111 |
f0d7b1fa |
1888 | emit_indirect_read_double(&tmp, &tmp2, GET_Rn(), GET_Rm(), 2); |
f0d7b1fa |
1889 | tmp4 = rcache_get_reg(SHR_MACH, RC_GR_RMW); |
1890 | /* MS 16 MAC bits unused if saturated */ |
23686515 |
1891 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
8796b7ee |
1892 | emith_tst_r_imm(sr, S); |
f0d7b1fa |
1893 | EMITH_SJMP_START(DCOND_EQ); |
1894 | emith_clear_msb_c(DCOND_NE, tmp4, tmp4, 16); |
1895 | EMITH_SJMP_END(DCOND_EQ); |
23686515 |
1896 | rcache_unlock(sr); |
f0d7b1fa |
1897 | tmp3 = rcache_get_reg(SHR_MACL, RC_GR_RMW); // might evict SR |
1898 | emith_mula_s64(tmp3, tmp4, tmp, tmp2); |
f0d7b1fa |
1899 | rcache_free_tmp(tmp2); |
8796b7ee |
1900 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); // reget just in case |
1901 | emith_tst_r_imm(sr, S); |
1902 | |
1903 | EMITH_JMP_START(DCOND_EQ); |
1904 | emith_asr(tmp, tmp4, 15); |
1905 | emith_cmp_r_imm(tmp, -1); // negative overflow (0x80000000..0xffff7fff) |
1906 | EMITH_SJMP_START(DCOND_GE); |
1907 | emith_move_r_imm_c(DCOND_LT, tmp4, 0x8000); |
1908 | emith_move_r_imm_c(DCOND_LT, tmp3, 0x0000); |
1909 | EMITH_SJMP_END(DCOND_GE); |
1910 | emith_cmp_r_imm(tmp, 0); // positive overflow (0x00008000..0x7fffffff) |
1911 | EMITH_SJMP_START(DCOND_LE); |
1912 | emith_move_r_imm_c(DCOND_GT, tmp4, 0x00007fff); |
1913 | emith_move_r_imm_c(DCOND_GT, tmp3, 0xffffffff); |
1914 | EMITH_SJMP_END(DCOND_LE); |
1915 | EMITH_JMP_END(DCOND_EQ); |
1916 | |
1917 | rcache_free_tmp(tmp); |
f0d7b1fa |
1918 | goto end_op; |
80599a42 |
1919 | } |
1920 | goto default_; |
1921 | |
3863edbd |
1922 | ///////////////////////////////////////////// |
80599a42 |
1923 | case 0x01: |
1924 | // MOV.L Rm,@(disp,Rn) 0001nnnnmmmmdddd |
1925 | rcache_clean(); |
1926 | tmp = rcache_get_reg_arg(0, GET_Rn()); |
1927 | tmp2 = rcache_get_reg_arg(1, GET_Rm()); |
23686515 |
1928 | if (op & 0x0f) |
1929 | emith_add_r_imm(tmp, (op & 0x0f) * 4); |
001f73a0 |
1930 | emit_memhandler_write(2); |
80599a42 |
1931 | goto end_op; |
1932 | |
1933 | case 0x02: |
1934 | switch (op & 0x0f) |
1935 | { |
1936 | case 0x00: // MOV.B Rm,@Rn 0010nnnnmmmm0000 |
1937 | case 0x01: // MOV.W Rm,@Rn 0010nnnnmmmm0001 |
1938 | case 0x02: // MOV.L Rm,@Rn 0010nnnnmmmm0010 |
1939 | rcache_clean(); |
1940 | rcache_get_reg_arg(0, GET_Rn()); |
1941 | rcache_get_reg_arg(1, GET_Rm()); |
001f73a0 |
1942 | emit_memhandler_write(op & 3); |
80599a42 |
1943 | goto end_op; |
f2dde871 |
1944 | case 0x04: // MOV.B Rm,@-Rn 0010nnnnmmmm0100 |
1945 | case 0x05: // MOV.W Rm,@-Rn 0010nnnnmmmm0101 |
1946 | case 0x06: // MOV.L Rm,@-Rn 0010nnnnmmmm0110 |
fa841b44 |
1947 | rcache_get_reg_arg(1, GET_Rm()); // for Rm == Rn |
80599a42 |
1948 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
1949 | emith_sub_r_imm(tmp, (1 << (op & 3))); |
1950 | rcache_clean(); |
1951 | rcache_get_reg_arg(0, GET_Rn()); |
001f73a0 |
1952 | emit_memhandler_write(op & 3); |
80599a42 |
1953 | goto end_op; |
1954 | case 0x07: // DIV0S Rm,Rn 0010nnnnmmmm0111 |
8796b7ee |
1955 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
80599a42 |
1956 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1957 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
8796b7ee |
1958 | emith_bic_r_imm(sr, M|Q|T); |
80599a42 |
1959 | emith_tst_r_imm(tmp2, (1<<31)); |
1960 | EMITH_SJMP_START(DCOND_EQ); |
8796b7ee |
1961 | emith_or_r_imm_c(DCOND_NE, sr, Q); |
80599a42 |
1962 | EMITH_SJMP_END(DCOND_EQ); |
1963 | emith_tst_r_imm(tmp3, (1<<31)); |
1964 | EMITH_SJMP_START(DCOND_EQ); |
8796b7ee |
1965 | emith_or_r_imm_c(DCOND_NE, sr, M); |
80599a42 |
1966 | EMITH_SJMP_END(DCOND_EQ); |
1967 | emith_teq_r_r(tmp2, tmp3); |
1968 | EMITH_SJMP_START(DCOND_PL); |
8796b7ee |
1969 | emith_or_r_imm_c(DCOND_MI, sr, T); |
80599a42 |
1970 | EMITH_SJMP_END(DCOND_PL); |
1971 | goto end_op; |
3863edbd |
1972 | case 0x08: // TST Rm,Rn 0010nnnnmmmm1000 |
8796b7ee |
1973 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
3863edbd |
1974 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1975 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
8796b7ee |
1976 | emith_bic_r_imm(sr, T); |
3863edbd |
1977 | emith_tst_r_r(tmp2, tmp3); |
8796b7ee |
1978 | emit_or_t_if_eq(sr); |
3863edbd |
1979 | goto end_op; |
1980 | case 0x09: // AND Rm,Rn 0010nnnnmmmm1001 |
1981 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
1982 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1983 | emith_and_r_r(tmp, tmp2); |
1984 | goto end_op; |
1985 | case 0x0a: // XOR Rm,Rn 0010nnnnmmmm1010 |
1986 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
1987 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1988 | emith_eor_r_r(tmp, tmp2); |
1989 | goto end_op; |
1990 | case 0x0b: // OR Rm,Rn 0010nnnnmmmm1011 |
1991 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
1992 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1993 | emith_or_r_r(tmp, tmp2); |
1994 | goto end_op; |
1995 | case 0x0c: // CMP/STR Rm,Rn 0010nnnnmmmm1100 |
1996 | tmp = rcache_get_tmp(); |
1997 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
1998 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
1999 | emith_eor_r_r_r(tmp, tmp2, tmp3); |
8796b7ee |
2000 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2001 | emith_bic_r_imm(sr, T); |
3863edbd |
2002 | emith_tst_r_imm(tmp, 0x000000ff); |
fa841b44 |
2003 | emit_or_t_if_eq(sr); |
3863edbd |
2004 | emith_tst_r_imm(tmp, 0x0000ff00); |
fa841b44 |
2005 | emit_or_t_if_eq(sr); |
3863edbd |
2006 | emith_tst_r_imm(tmp, 0x00ff0000); |
fa841b44 |
2007 | emit_or_t_if_eq(sr); |
3863edbd |
2008 | emith_tst_r_imm(tmp, 0xff000000); |
fa841b44 |
2009 | emit_or_t_if_eq(sr); |
3863edbd |
2010 | rcache_free_tmp(tmp); |
2011 | goto end_op; |
2012 | case 0x0d: // XTRCT Rm,Rn 0010nnnnmmmm1101 |
2013 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2014 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2015 | emith_lsr(tmp, tmp, 16); |
f0d7b1fa |
2016 | emith_or_r_r_lsl(tmp, tmp2, 16); |
3863edbd |
2017 | goto end_op; |
2018 | case 0x0e: // MULU.W Rm,Rn 0010nnnnmmmm1110 |
2019 | case 0x0f: // MULS.W Rm,Rn 0010nnnnmmmm1111 |
2020 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
2021 | tmp = rcache_get_reg(SHR_MACL, RC_GR_WRITE); |
2022 | if (op & 1) { |
2023 | emith_sext(tmp, tmp2, 16); |
2024 | } else |
2025 | emith_clear_msb(tmp, tmp2, 16); |
2026 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2027 | tmp2 = rcache_get_tmp(); |
2028 | if (op & 1) { |
2029 | emith_sext(tmp2, tmp3, 16); |
2030 | } else |
2031 | emith_clear_msb(tmp2, tmp3, 16); |
2032 | emith_mul(tmp, tmp, tmp2); |
2033 | rcache_free_tmp(tmp2); |
3863edbd |
2034 | goto end_op; |
679af8a3 |
2035 | } |
2036 | goto default_; |
2037 | |
3863edbd |
2038 | ///////////////////////////////////////////// |
2039 | case 0x03: |
2040 | switch (op & 0x0f) |
2041 | { |
2042 | case 0x00: // CMP/EQ Rm,Rn 0011nnnnmmmm0000 |
2043 | case 0x02: // CMP/HS Rm,Rn 0011nnnnmmmm0010 |
2044 | case 0x03: // CMP/GE Rm,Rn 0011nnnnmmmm0011 |
2045 | case 0x06: // CMP/HI Rm,Rn 0011nnnnmmmm0110 |
2046 | case 0x07: // CMP/GT Rm,Rn 0011nnnnmmmm0111 |
8796b7ee |
2047 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
3863edbd |
2048 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_READ); |
2049 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
8796b7ee |
2050 | emith_bic_r_imm(sr, T); |
3863edbd |
2051 | emith_cmp_r_r(tmp2, tmp3); |
2052 | switch (op & 0x07) |
2053 | { |
2054 | case 0x00: // CMP/EQ |
8796b7ee |
2055 | emit_or_t_if_eq(sr); |
3863edbd |
2056 | break; |
2057 | case 0x02: // CMP/HS |
2058 | EMITH_SJMP_START(DCOND_LO); |
8796b7ee |
2059 | emith_or_r_imm_c(DCOND_HS, sr, T); |
3863edbd |
2060 | EMITH_SJMP_END(DCOND_LO); |
2061 | break; |
2062 | case 0x03: // CMP/GE |
2063 | EMITH_SJMP_START(DCOND_LT); |
8796b7ee |
2064 | emith_or_r_imm_c(DCOND_GE, sr, T); |
3863edbd |
2065 | EMITH_SJMP_END(DCOND_LT); |
2066 | break; |
2067 | case 0x06: // CMP/HI |
2068 | EMITH_SJMP_START(DCOND_LS); |
8796b7ee |
2069 | emith_or_r_imm_c(DCOND_HI, sr, T); |
3863edbd |
2070 | EMITH_SJMP_END(DCOND_LS); |
2071 | break; |
2072 | case 0x07: // CMP/GT |
2073 | EMITH_SJMP_START(DCOND_LE); |
8796b7ee |
2074 | emith_or_r_imm_c(DCOND_GT, sr, T); |
3863edbd |
2075 | EMITH_SJMP_END(DCOND_LE); |
2076 | break; |
2077 | } |
2078 | goto end_op; |
2079 | case 0x04: // DIV1 Rm,Rn 0011nnnnmmmm0100 |
f0d7b1fa |
2080 | // Q1 = carry(Rn = (Rn << 1) | T) |
2081 | // if Q ^ M |
2082 | // Q2 = carry(Rn += Rm) |
2083 | // else |
2084 | // Q2 = carry(Rn -= Rm) |
2085 | // Q = M ^ Q1 ^ Q2 |
2086 | // T = (Q == M) = !(Q ^ M) = !(Q1 ^ Q2) |
2087 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2088 | tmp3 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2089 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2090 | emith_tpop_carry(sr, 0); |
f0d7b1fa |
2091 | emith_adcf_r_r(tmp2, tmp2); |
8b4f38f4 |
2092 | emith_tpush_carry(sr, 0); // keep Q1 in T for now |
f0d7b1fa |
2093 | tmp4 = rcache_get_tmp(); |
2094 | emith_and_r_r_imm(tmp4, sr, M); |
2095 | emith_eor_r_r_lsr(sr, tmp4, M_SHIFT - Q_SHIFT); // Q ^= M |
2096 | rcache_free_tmp(tmp4); |
2097 | // add or sub, invert T if carry to get Q1 ^ Q2 |
2098 | // in: (Q ^ M) passed in Q, Q1 in T |
2099 | emith_sh2_div1_step(tmp2, tmp3, sr); |
18b94127 |
2100 | emith_bic_r_imm(sr, Q); |
2101 | emith_tst_r_imm(sr, M); |
2102 | EMITH_SJMP_START(DCOND_EQ); |
2103 | emith_or_r_imm_c(DCOND_NE, sr, Q); // Q = M |
2104 | EMITH_SJMP_END(DCOND_EQ); |
2105 | emith_tst_r_imm(sr, T); |
2106 | EMITH_SJMP_START(DCOND_EQ); |
2107 | emith_eor_r_imm_c(DCOND_NE, sr, Q); // Q = M ^ Q1 ^ Q2 |
2108 | EMITH_SJMP_END(DCOND_EQ); |
2109 | emith_eor_r_imm(sr, T); // T = !(Q1 ^ Q2) |
f0d7b1fa |
2110 | goto end_op; |
3863edbd |
2111 | case 0x05: // DMULU.L Rm,Rn 0011nnnnmmmm0101 |
2112 | tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); |
2113 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2114 | tmp3 = rcache_get_reg(SHR_MACL, RC_GR_WRITE); |
2115 | tmp4 = rcache_get_reg(SHR_MACH, RC_GR_WRITE); |
2116 | emith_mul_u64(tmp3, tmp4, tmp, tmp2); |
2117 | goto end_op; |
2118 | case 0x08: // SUB Rm,Rn 0011nnnnmmmm1000 |
2119 | case 0x0c: // ADD Rm,Rn 0011nnnnmmmm1100 |
2120 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2121 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2122 | if (op & 4) { |
2123 | emith_add_r_r(tmp, tmp2); |
2124 | } else |
2125 | emith_sub_r_r(tmp, tmp2); |
2126 | goto end_op; |
2127 | case 0x0a: // SUBC Rm,Rn 0011nnnnmmmm1010 |
2128 | case 0x0e: // ADDC Rm,Rn 0011nnnnmmmm1110 |
2129 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2130 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
8796b7ee |
2131 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
3863edbd |
2132 | if (op & 4) { // adc |
8b4f38f4 |
2133 | emith_tpop_carry(sr, 0); |
3863edbd |
2134 | emith_adcf_r_r(tmp, tmp2); |
8b4f38f4 |
2135 | emith_tpush_carry(sr, 0); |
3863edbd |
2136 | } else { |
8b4f38f4 |
2137 | emith_tpop_carry(sr, 1); |
3863edbd |
2138 | emith_sbcf_r_r(tmp, tmp2); |
8b4f38f4 |
2139 | emith_tpush_carry(sr, 1); |
3863edbd |
2140 | } |
3863edbd |
2141 | goto end_op; |
2142 | case 0x0b: // SUBV Rm,Rn 0011nnnnmmmm1011 |
2143 | case 0x0f: // ADDV Rm,Rn 0011nnnnmmmm1111 |
2144 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2145 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
8796b7ee |
2146 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2147 | emith_bic_r_imm(sr, T); |
3863edbd |
2148 | if (op & 4) { |
2149 | emith_addf_r_r(tmp, tmp2); |
2150 | } else |
2151 | emith_subf_r_r(tmp, tmp2); |
2152 | EMITH_SJMP_START(DCOND_VC); |
8796b7ee |
2153 | emith_or_r_imm_c(DCOND_VS, sr, T); |
3863edbd |
2154 | EMITH_SJMP_END(DCOND_VC); |
2155 | goto end_op; |
2156 | case 0x0d: // DMULS.L Rm,Rn 0011nnnnmmmm1101 |
2157 | tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); |
2158 | tmp2 = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2159 | tmp3 = rcache_get_reg(SHR_MACL, RC_GR_WRITE); |
2160 | tmp4 = rcache_get_reg(SHR_MACH, RC_GR_WRITE); |
2161 | emith_mul_s64(tmp3, tmp4, tmp, tmp2); |
2162 | goto end_op; |
2163 | } |
2164 | goto default_; |
2165 | |
2166 | ///////////////////////////////////////////// |
679af8a3 |
2167 | case 0x04: |
3863edbd |
2168 | switch (op & 0x0f) |
2169 | { |
c18edb34 |
2170 | case 0x00: |
3863edbd |
2171 | switch (GET_Fx()) |
2172 | { |
2173 | case 0: // SHLL Rn 0100nnnn00000000 |
2174 | case 2: // SHAL Rn 0100nnnn00100000 |
8796b7ee |
2175 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2176 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2177 | emith_tpop_carry(sr, 0); // dummy |
3863edbd |
2178 | emith_lslf(tmp, tmp, 1); |
8b4f38f4 |
2179 | emith_tpush_carry(sr, 0); |
3863edbd |
2180 | goto end_op; |
2181 | case 1: // DT Rn 0100nnnn00010000 |
8796b7ee |
2182 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
fa841b44 |
2183 | #if 0 // scheduling needs tuning |
23686515 |
2184 | if (FETCH_OP(pc) == 0x8bfd) { // BF #-2 |
2185 | if (gconst_get(GET_Rn(), &tmp)) { |
2186 | // XXX: limit burned cycles |
2187 | emit_move_r_imm32(GET_Rn(), 0); |
2188 | emith_or_r_imm(sr, T); |
a2b8c5a5 |
2189 | cycles += tmp * 4 + 1; // +1 syncs with noconst version, not sure why |
23686515 |
2190 | skip_op = 1; |
2191 | } |
2192 | else |
2193 | emith_sh2_dtbf_loop(); |
2194 | goto end_op; |
2195 | } |
00faec9c |
2196 | #endif |
23686515 |
2197 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
8796b7ee |
2198 | emith_bic_r_imm(sr, T); |
3863edbd |
2199 | emith_subf_r_imm(tmp, 1); |
8796b7ee |
2200 | emit_or_t_if_eq(sr); |
80599a42 |
2201 | goto end_op; |
2202 | } |
3863edbd |
2203 | goto default_; |
ed8cf79b |
2204 | case 0x01: |
2205 | switch (GET_Fx()) |
2206 | { |
2207 | case 0: // SHLR Rn 0100nnnn00000001 |
2208 | case 2: // SHAR Rn 0100nnnn00100001 |
8796b7ee |
2209 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2210 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2211 | emith_tpop_carry(sr, 0); // dummy |
ed8cf79b |
2212 | if (op & 0x20) { |
2213 | emith_asrf(tmp, tmp, 1); |
2214 | } else |
2215 | emith_lsrf(tmp, tmp, 1); |
8b4f38f4 |
2216 | emith_tpush_carry(sr, 0); |
ed8cf79b |
2217 | goto end_op; |
2218 | case 1: // CMP/PZ Rn 0100nnnn00010001 |
bf092a36 |
2219 | tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); |
8796b7ee |
2220 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2221 | emith_bic_r_imm(sr, T); |
ed8cf79b |
2222 | emith_cmp_r_imm(tmp, 0); |
2223 | EMITH_SJMP_START(DCOND_LT); |
8796b7ee |
2224 | emith_or_r_imm_c(DCOND_GE, sr, T); |
ed8cf79b |
2225 | EMITH_SJMP_END(DCOND_LT); |
2226 | goto end_op; |
2227 | } |
2228 | goto default_; |
2229 | case 0x02: |
2230 | case 0x03: |
2231 | switch (op & 0x3f) |
2232 | { |
f2dde871 |
2233 | case 0x02: // STS.L MACH,@-Rn 0100nnnn00000010 |
ed8cf79b |
2234 | tmp = SHR_MACH; |
2235 | break; |
f2dde871 |
2236 | case 0x12: // STS.L MACL,@-Rn 0100nnnn00010010 |
ed8cf79b |
2237 | tmp = SHR_MACL; |
2238 | break; |
f2dde871 |
2239 | case 0x22: // STS.L PR,@-Rn 0100nnnn00100010 |
ed8cf79b |
2240 | tmp = SHR_PR; |
2241 | break; |
f2dde871 |
2242 | case 0x03: // STC.L SR,@-Rn 0100nnnn00000011 |
ed8cf79b |
2243 | tmp = SHR_SR; |
2244 | break; |
f2dde871 |
2245 | case 0x13: // STC.L GBR,@-Rn 0100nnnn00010011 |
ed8cf79b |
2246 | tmp = SHR_GBR; |
2247 | break; |
f2dde871 |
2248 | case 0x23: // STC.L VBR,@-Rn 0100nnnn00100011 |
ed8cf79b |
2249 | tmp = SHR_VBR; |
2250 | break; |
2251 | default: |
e898de13 |
2252 | goto default_; |
ed8cf79b |
2253 | } |
2254 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2255 | emith_sub_r_imm(tmp2, 4); |
2256 | rcache_clean(); |
2257 | rcache_get_reg_arg(0, GET_Rn()); |
2258 | tmp3 = rcache_get_reg_arg(1, tmp); |
2259 | if (tmp == SHR_SR) |
e05b81fc |
2260 | emith_clear_msb(tmp3, tmp3, 22); // reserved bits defined by ISA as 0 |
001f73a0 |
2261 | emit_memhandler_write(2); |
ed8cf79b |
2262 | goto end_op; |
2263 | case 0x04: |
2264 | case 0x05: |
2265 | switch (op & 0x3f) |
2266 | { |
2267 | case 0x04: // ROTL Rn 0100nnnn00000100 |
2268 | case 0x05: // ROTR Rn 0100nnnn00000101 |
8796b7ee |
2269 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2270 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2271 | emith_tpop_carry(sr, 0); // dummy |
ed8cf79b |
2272 | if (op & 1) { |
2273 | emith_rorf(tmp, tmp, 1); |
2274 | } else |
2275 | emith_rolf(tmp, tmp, 1); |
8b4f38f4 |
2276 | emith_tpush_carry(sr, 0); |
ed8cf79b |
2277 | goto end_op; |
2278 | case 0x24: // ROTCL Rn 0100nnnn00100100 |
2279 | case 0x25: // ROTCR Rn 0100nnnn00100101 |
8796b7ee |
2280 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2281 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2282 | emith_tpop_carry(sr, 0); |
ed8cf79b |
2283 | if (op & 1) { |
2284 | emith_rorcf(tmp); |
2285 | } else |
2286 | emith_rolcf(tmp); |
8b4f38f4 |
2287 | emith_tpush_carry(sr, 0); |
ed8cf79b |
2288 | goto end_op; |
2289 | case 0x15: // CMP/PL Rn 0100nnnn00010101 |
8796b7ee |
2290 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2291 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2292 | emith_bic_r_imm(sr, T); |
ed8cf79b |
2293 | emith_cmp_r_imm(tmp, 0); |
2294 | EMITH_SJMP_START(DCOND_LE); |
8796b7ee |
2295 | emith_or_r_imm_c(DCOND_GT, sr, T); |
ed8cf79b |
2296 | EMITH_SJMP_END(DCOND_LE); |
2297 | goto end_op; |
2298 | } |
e898de13 |
2299 | goto default_; |
ed8cf79b |
2300 | case 0x06: |
2301 | case 0x07: |
2302 | switch (op & 0x3f) |
2303 | { |
2304 | case 0x06: // LDS.L @Rm+,MACH 0100mmmm00000110 |
2305 | tmp = SHR_MACH; |
2306 | break; |
2307 | case 0x16: // LDS.L @Rm+,MACL 0100mmmm00010110 |
2308 | tmp = SHR_MACL; |
2309 | break; |
2310 | case 0x26: // LDS.L @Rm+,PR 0100mmmm00100110 |
2311 | tmp = SHR_PR; |
2312 | break; |
2313 | case 0x07: // LDC.L @Rm+,SR 0100mmmm00000111 |
2314 | tmp = SHR_SR; |
2315 | break; |
2316 | case 0x17: // LDC.L @Rm+,GBR 0100mmmm00010111 |
2317 | tmp = SHR_GBR; |
2318 | break; |
2319 | case 0x27: // LDC.L @Rm+,VBR 0100mmmm00100111 |
2320 | tmp = SHR_VBR; |
2321 | break; |
2322 | default: |
2323 | goto default_; |
2324 | } |
ed8cf79b |
2325 | rcache_get_reg_arg(0, GET_Rn()); |
2326 | tmp2 = emit_memhandler_read(2); |
2327 | if (tmp == SHR_SR) { |
18b94127 |
2328 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
18b94127 |
2329 | emith_write_sr(sr, tmp2); |
2330 | drcf.test_irq = 1; |
ed8cf79b |
2331 | } else { |
2332 | tmp = rcache_get_reg(tmp, RC_GR_WRITE); |
2333 | emith_move_r_r(tmp, tmp2); |
2334 | } |
2335 | rcache_free_tmp(tmp2); |
2336 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2337 | emith_add_r_imm(tmp, 4); |
2338 | goto end_op; |
52d759c3 |
2339 | case 0x08: |
2340 | case 0x09: |
2341 | switch (GET_Fx()) |
2342 | { |
2343 | case 0: |
2344 | // SHLL2 Rn 0100nnnn00001000 |
2345 | // SHLR2 Rn 0100nnnn00001001 |
2346 | tmp = 2; |
2347 | break; |
2348 | case 1: |
2349 | // SHLL8 Rn 0100nnnn00011000 |
2350 | // SHLR8 Rn 0100nnnn00011001 |
2351 | tmp = 8; |
2352 | break; |
2353 | case 2: |
2354 | // SHLL16 Rn 0100nnnn00101000 |
2355 | // SHLR16 Rn 0100nnnn00101001 |
2356 | tmp = 16; |
2357 | break; |
2358 | default: |
2359 | goto default_; |
2360 | } |
2361 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2362 | if (op & 1) { |
2363 | emith_lsr(tmp2, tmp2, tmp); |
2364 | } else |
2365 | emith_lsl(tmp2, tmp2, tmp); |
2366 | goto end_op; |
2367 | case 0x0a: |
2368 | switch (GET_Fx()) |
2369 | { |
2370 | case 0: // LDS Rm,MACH 0100mmmm00001010 |
2371 | tmp2 = SHR_MACH; |
2372 | break; |
2373 | case 1: // LDS Rm,MACL 0100mmmm00011010 |
2374 | tmp2 = SHR_MACL; |
2375 | break; |
2376 | case 2: // LDS Rm,PR 0100mmmm00101010 |
2377 | tmp2 = SHR_PR; |
2378 | break; |
2379 | default: |
2380 | goto default_; |
2381 | } |
2382 | emit_move_r_r(tmp2, GET_Rn()); |
2383 | goto end_op; |
e898de13 |
2384 | case 0x0b: |
52d759c3 |
2385 | switch (GET_Fx()) |
2386 | { |
52d759c3 |
2387 | case 1: // TAS.B @Rn 0100nnnn00011011 |
2388 | // XXX: is TAS working on 32X? |
52d759c3 |
2389 | rcache_get_reg_arg(0, GET_Rn()); |
8796b7ee |
2390 | tmp = emit_memhandler_read(0); |
2391 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2392 | emith_bic_r_imm(sr, T); |
52d759c3 |
2393 | emith_cmp_r_imm(tmp, 0); |
8796b7ee |
2394 | emit_or_t_if_eq(sr); |
52d759c3 |
2395 | rcache_clean(); |
2396 | emith_or_r_imm(tmp, 0x80); |
2397 | tmp2 = rcache_get_tmp_arg(1); // assuming it differs to tmp |
2398 | emith_move_r_r(tmp2, tmp); |
2399 | rcache_free_tmp(tmp); |
2400 | rcache_get_reg_arg(0, GET_Rn()); |
001f73a0 |
2401 | emit_memhandler_write(0); |
52d759c3 |
2402 | break; |
2403 | default: |
e898de13 |
2404 | goto default_; |
52d759c3 |
2405 | } |
e898de13 |
2406 | goto end_op; |
2407 | case 0x0e: |
52d759c3 |
2408 | tmp = rcache_get_reg(GET_Rn(), RC_GR_READ); |
2409 | switch (GET_Fx()) |
2410 | { |
2411 | case 0: // LDC Rm,SR 0100mmmm00001110 |
2412 | tmp2 = SHR_SR; |
2413 | break; |
2414 | case 1: // LDC Rm,GBR 0100mmmm00011110 |
2415 | tmp2 = SHR_GBR; |
2416 | break; |
2417 | case 2: // LDC Rm,VBR 0100mmmm00101110 |
2418 | tmp2 = SHR_VBR; |
2419 | break; |
2420 | default: |
e898de13 |
2421 | goto default_; |
52d759c3 |
2422 | } |
2423 | if (tmp2 == SHR_SR) { |
18b94127 |
2424 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
18b94127 |
2425 | emith_write_sr(sr, tmp); |
2426 | drcf.test_irq = 1; |
52d759c3 |
2427 | } else { |
2428 | tmp2 = rcache_get_reg(tmp2, RC_GR_WRITE); |
2429 | emith_move_r_r(tmp2, tmp); |
2430 | } |
2431 | goto end_op; |
2432 | case 0x0f: |
23686515 |
2433 | // MAC.W @Rm+,@Rn+ 0100nnnnmmmm1111 |
f0d7b1fa |
2434 | emit_indirect_read_double(&tmp, &tmp2, GET_Rn(), GET_Rm(), 1); |
2435 | emith_sext(tmp, tmp, 16); |
2436 | emith_sext(tmp2, tmp2, 16); |
2437 | tmp3 = rcache_get_reg(SHR_MACL, RC_GR_RMW); |
2438 | tmp4 = rcache_get_reg(SHR_MACH, RC_GR_RMW); |
2439 | emith_mula_s64(tmp3, tmp4, tmp, tmp2); |
f0d7b1fa |
2440 | rcache_free_tmp(tmp2); |
f0d7b1fa |
2441 | // XXX: MACH should be untouched when S is set? |
8796b7ee |
2442 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
2443 | emith_tst_r_imm(sr, S); |
2444 | EMITH_JMP_START(DCOND_EQ); |
2445 | |
2446 | emith_asr(tmp, tmp3, 31); |
2447 | emith_eorf_r_r(tmp, tmp4); // tmp = ((signed)macl >> 31) ^ mach |
2448 | EMITH_JMP_START(DCOND_EQ); |
2449 | emith_move_r_imm(tmp3, 0x80000000); |
2450 | emith_tst_r_r(tmp4, tmp4); |
2451 | EMITH_SJMP_START(DCOND_MI); |
2452 | emith_sub_r_imm_c(DCOND_PL, tmp3, 1); // positive |
2453 | EMITH_SJMP_END(DCOND_MI); |
2454 | EMITH_JMP_END(DCOND_EQ); |
2455 | |
2456 | EMITH_JMP_END(DCOND_EQ); |
2457 | rcache_free_tmp(tmp); |
f0d7b1fa |
2458 | goto end_op; |
679af8a3 |
2459 | } |
2460 | goto default_; |
2461 | |
52d759c3 |
2462 | ///////////////////////////////////////////// |
2463 | case 0x05: |
2464 | // MOV.L @(disp,Rm),Rn 0101nnnnmmmmdddd |
23686515 |
2465 | emit_memhandler_read_rr(GET_Rn(), GET_Rm(), (op & 0x0f) * 4, 2); |
52d759c3 |
2466 | goto end_op; |
2467 | |
2468 | ///////////////////////////////////////////// |
2469 | case 0x06: |
2470 | switch (op & 0x0f) |
2471 | { |
2472 | case 0x00: // MOV.B @Rm,Rn 0110nnnnmmmm0000 |
2473 | case 0x01: // MOV.W @Rm,Rn 0110nnnnmmmm0001 |
2474 | case 0x02: // MOV.L @Rm,Rn 0110nnnnmmmm0010 |
2475 | case 0x04: // MOV.B @Rm+,Rn 0110nnnnmmmm0100 |
2476 | case 0x05: // MOV.W @Rm+,Rn 0110nnnnmmmm0101 |
2477 | case 0x06: // MOV.L @Rm+,Rn 0110nnnnmmmm0110 |
23686515 |
2478 | emit_memhandler_read_rr(GET_Rn(), GET_Rm(), 0, op & 3); |
52d759c3 |
2479 | if ((op & 7) >= 4 && GET_Rn() != GET_Rm()) { |
2480 | tmp = rcache_get_reg(GET_Rm(), RC_GR_RMW); |
2481 | emith_add_r_imm(tmp, (1 << (op & 3))); |
2482 | } |
2483 | goto end_op; |
2484 | case 0x03: |
2485 | case 0x07 ... 0x0f: |
2486 | tmp = rcache_get_reg(GET_Rm(), RC_GR_READ); |
2487 | tmp2 = rcache_get_reg(GET_Rn(), RC_GR_WRITE); |
2488 | switch (op & 0x0f) |
2489 | { |
2490 | case 0x03: // MOV Rm,Rn 0110nnnnmmmm0011 |
2491 | emith_move_r_r(tmp2, tmp); |
2492 | break; |
2493 | case 0x07: // NOT Rm,Rn 0110nnnnmmmm0111 |
2494 | emith_mvn_r_r(tmp2, tmp); |
2495 | break; |
2496 | case 0x08: // SWAP.B Rm,Rn 0110nnnnmmmm1000 |
2497 | tmp3 = tmp2; |
2498 | if (tmp == tmp2) |
2499 | tmp3 = rcache_get_tmp(); |
2500 | tmp4 = rcache_get_tmp(); |
2501 | emith_lsr(tmp3, tmp, 16); |
f0d7b1fa |
2502 | emith_or_r_r_lsl(tmp3, tmp, 24); |
52d759c3 |
2503 | emith_and_r_r_imm(tmp4, tmp, 0xff00); |
f0d7b1fa |
2504 | emith_or_r_r_lsl(tmp3, tmp4, 8); |
52d759c3 |
2505 | emith_rol(tmp2, tmp3, 16); |
2506 | rcache_free_tmp(tmp4); |
2507 | if (tmp == tmp2) |
2508 | rcache_free_tmp(tmp3); |
2509 | break; |
2510 | case 0x09: // SWAP.W Rm,Rn 0110nnnnmmmm1001 |
2511 | emith_rol(tmp2, tmp, 16); |
2512 | break; |
2513 | case 0x0a: // NEGC Rm,Rn 0110nnnnmmmm1010 |
8796b7ee |
2514 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
8b4f38f4 |
2515 | emith_tpop_carry(sr, 1); |
52d759c3 |
2516 | emith_negcf_r_r(tmp2, tmp); |
8b4f38f4 |
2517 | emith_tpush_carry(sr, 1); |
52d759c3 |
2518 | break; |
2519 | case 0x0b: // NEG Rm,Rn 0110nnnnmmmm1011 |
2520 | emith_neg_r_r(tmp2, tmp); |
2521 | break; |
2522 | case 0x0c: // EXTU.B Rm,Rn 0110nnnnmmmm1100 |
2523 | emith_clear_msb(tmp2, tmp, 24); |
2524 | break; |
2525 | case 0x0d: // EXTU.W Rm,Rn 0110nnnnmmmm1101 |
2526 | emith_clear_msb(tmp2, tmp, 16); |
2527 | break; |
2528 | case 0x0e: // EXTS.B Rm,Rn 0110nnnnmmmm1110 |
2529 | emith_sext(tmp2, tmp, 8); |
2530 | break; |
2531 | case 0x0f: // EXTS.W Rm,Rn 0110nnnnmmmm1111 |
2532 | emith_sext(tmp2, tmp, 16); |
2533 | break; |
2534 | } |
2535 | goto end_op; |
2536 | } |
2537 | goto default_; |
2538 | |
2539 | ///////////////////////////////////////////// |
2540 | case 0x07: |
2541 | // ADD #imm,Rn 0111nnnniiiiiiii |
2542 | tmp = rcache_get_reg(GET_Rn(), RC_GR_RMW); |
2543 | if (op & 0x80) { // adding negative |
2544 | emith_sub_r_imm(tmp, -op & 0xff); |
2545 | } else |
2546 | emith_add_r_imm(tmp, op & 0xff); |
2547 | goto end_op; |
2548 | |
3863edbd |
2549 | ///////////////////////////////////////////// |
e898de13 |
2550 | case 0x08: |
52d759c3 |
2551 | switch (op & 0x0f00) |
2552 | { |
2553 | case 0x0000: // MOV.B R0,@(disp,Rn) 10000000nnnndddd |
2554 | case 0x0100: // MOV.W R0,@(disp,Rn) 10000001nnnndddd |
2555 | rcache_clean(); |
2556 | tmp = rcache_get_reg_arg(0, GET_Rm()); |
2557 | tmp2 = rcache_get_reg_arg(1, SHR_R0); |
2558 | tmp3 = (op & 0x100) >> 8; |
23686515 |
2559 | if (op & 0x0f) |
2560 | emith_add_r_imm(tmp, (op & 0x0f) << tmp3); |
001f73a0 |
2561 | emit_memhandler_write(tmp3); |
52d759c3 |
2562 | goto end_op; |
2563 | case 0x0400: // MOV.B @(disp,Rm),R0 10000100mmmmdddd |
2564 | case 0x0500: // MOV.W @(disp,Rm),R0 10000101mmmmdddd |
23686515 |
2565 | tmp = (op & 0x100) >> 8; |
2566 | emit_memhandler_read_rr(SHR_R0, GET_Rm(), (op & 0x0f) << tmp, tmp); |
52d759c3 |
2567 | goto end_op; |
2568 | case 0x0800: // CMP/EQ #imm,R0 10001000iiiiiiii |
2569 | // XXX: could use cmn |
2570 | tmp = rcache_get_tmp(); |
2571 | tmp2 = rcache_get_reg(0, RC_GR_READ); |
8796b7ee |
2572 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
52d759c3 |
2573 | emith_move_r_imm_s8(tmp, op & 0xff); |
8796b7ee |
2574 | emith_bic_r_imm(sr, T); |
52d759c3 |
2575 | emith_cmp_r_r(tmp2, tmp); |
8796b7ee |
2576 | emit_or_t_if_eq(sr); |
52d759c3 |
2577 | rcache_free_tmp(tmp); |
2578 | goto end_op; |
44e6452e |
2579 | } |
679af8a3 |
2580 | goto default_; |
679af8a3 |
2581 | |
52d759c3 |
2582 | ///////////////////////////////////////////// |
2583 | case 0x0c: |
2584 | switch (op & 0x0f00) |
2585 | { |
2586 | case 0x0000: // MOV.B R0,@(disp,GBR) 11000000dddddddd |
2587 | case 0x0100: // MOV.W R0,@(disp,GBR) 11000001dddddddd |
2588 | case 0x0200: // MOV.L R0,@(disp,GBR) 11000010dddddddd |
2589 | rcache_clean(); |
2590 | tmp = rcache_get_reg_arg(0, SHR_GBR); |
2591 | tmp2 = rcache_get_reg_arg(1, SHR_R0); |
2592 | tmp3 = (op & 0x300) >> 8; |
2593 | emith_add_r_imm(tmp, (op & 0xff) << tmp3); |
001f73a0 |
2594 | emit_memhandler_write(tmp3); |
52d759c3 |
2595 | goto end_op; |
2596 | case 0x0400: // MOV.B @(disp,GBR),R0 11000100dddddddd |
2597 | case 0x0500: // MOV.W @(disp,GBR),R0 11000101dddddddd |
2598 | case 0x0600: // MOV.L @(disp,GBR),R0 11000110dddddddd |
23686515 |
2599 | tmp = (op & 0x300) >> 8; |
2600 | emit_memhandler_read_rr(SHR_R0, SHR_GBR, (op & 0xff) << tmp, tmp); |
52d759c3 |
2601 | goto end_op; |
2602 | case 0x0300: // TRAPA #imm 11000011iiiiiiii |
2603 | tmp = rcache_get_reg(SHR_SP, RC_GR_RMW); |
2604 | emith_sub_r_imm(tmp, 4*2); |
52d759c3 |
2605 | // push SR |
2606 | tmp = rcache_get_reg_arg(0, SHR_SP); |
2607 | emith_add_r_imm(tmp, 4); |
2608 | tmp = rcache_get_reg_arg(1, SHR_SR); |
18b94127 |
2609 | emith_clear_msb(tmp, tmp, 22); |
001f73a0 |
2610 | emit_memhandler_write(2); |
52d759c3 |
2611 | // push PC |
2612 | rcache_get_reg_arg(0, SHR_SP); |
2613 | tmp = rcache_get_tmp_arg(1); |
2614 | emith_move_r_imm(tmp, pc); |
001f73a0 |
2615 | emit_memhandler_write(2); |
52d759c3 |
2616 | // obtain new PC |
23686515 |
2617 | emit_memhandler_read_rr(SHR_PC, SHR_VBR, (op & 0xff) * 4, 2); |
bf092a36 |
2618 | // indirect jump -> back to dispatcher |
6976a547 |
2619 | rcache_flush(); |
bf092a36 |
2620 | emith_jump(sh2_drc_dispatcher); |
44e6452e |
2621 | goto end_op; |
52d759c3 |
2622 | case 0x0800: // TST #imm,R0 11001000iiiiiiii |
8796b7ee |
2623 | tmp = rcache_get_reg(SHR_R0, RC_GR_READ); |
2624 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2625 | emith_bic_r_imm(sr, T); |
52d759c3 |
2626 | emith_tst_r_imm(tmp, op & 0xff); |
8796b7ee |
2627 | emit_or_t_if_eq(sr); |
52d759c3 |
2628 | goto end_op; |
2629 | case 0x0900: // AND #imm,R0 11001001iiiiiiii |
2630 | tmp = rcache_get_reg(SHR_R0, RC_GR_RMW); |
2631 | emith_and_r_imm(tmp, op & 0xff); |
2632 | goto end_op; |
2633 | case 0x0a00: // XOR #imm,R0 11001010iiiiiiii |
2634 | tmp = rcache_get_reg(SHR_R0, RC_GR_RMW); |
2635 | emith_eor_r_imm(tmp, op & 0xff); |
2636 | goto end_op; |
2637 | case 0x0b00: // OR #imm,R0 11001011iiiiiiii |
2638 | tmp = rcache_get_reg(SHR_R0, RC_GR_RMW); |
2639 | emith_or_r_imm(tmp, op & 0xff); |
2640 | goto end_op; |
2641 | case 0x0c00: // TST.B #imm,@(R0,GBR) 11001100iiiiiiii |
8796b7ee |
2642 | tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); |
2643 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2644 | emith_bic_r_imm(sr, T); |
52d759c3 |
2645 | emith_tst_r_imm(tmp, op & 0xff); |
8796b7ee |
2646 | emit_or_t_if_eq(sr); |
52d759c3 |
2647 | rcache_free_tmp(tmp); |
52d759c3 |
2648 | goto end_op; |
2649 | case 0x0d00: // AND.B #imm,@(R0,GBR) 11001101iiiiiiii |
2650 | tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); |
2651 | emith_and_r_imm(tmp, op & 0xff); |
8796b7ee |
2652 | goto end_rmw_op; |
52d759c3 |
2653 | case 0x0e00: // XOR.B #imm,@(R0,GBR) 11001110iiiiiiii |
2654 | tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); |
2655 | emith_eor_r_imm(tmp, op & 0xff); |
8796b7ee |
2656 | goto end_rmw_op; |
52d759c3 |
2657 | case 0x0f00: // OR.B #imm,@(R0,GBR) 11001111iiiiiiii |
2658 | tmp = emit_indirect_indexed_read(SHR_R0, SHR_GBR, 0); |
2659 | emith_or_r_imm(tmp, op & 0xff); |
8796b7ee |
2660 | end_rmw_op: |
2661 | tmp2 = rcache_get_tmp_arg(1); |
2662 | emith_move_r_r(tmp2, tmp); |
2663 | rcache_free_tmp(tmp); |
2664 | tmp3 = rcache_get_reg_arg(0, SHR_GBR); |
2665 | tmp4 = rcache_get_reg(SHR_R0, RC_GR_READ); |
2666 | emith_add_r_r(tmp3, tmp4); |
001f73a0 |
2667 | emit_memhandler_write(0); |
52d759c3 |
2668 | goto end_op; |
2669 | } |
2670 | goto default_; |
2671 | |
52d759c3 |
2672 | ///////////////////////////////////////////// |
2673 | case 0x0e: |
2674 | // MOV #imm,Rn 1110nnnniiiiiiii |
23686515 |
2675 | emit_move_r_imm32(GET_Rn(), (u32)(signed int)(signed char)op); |
52d759c3 |
2676 | goto end_op; |
2677 | |
679af8a3 |
2678 | default: |
2679 | default_: |
6a5b1b36 |
2680 | if (!(op_flags[i] & OF_B_IN_DS)) |
2681 | elprintf_sh2(sh2, EL_ANOMALY, |
2682 | "drc: illegal op %04x @ %08x", op, pc - 2); |
001f73a0 |
2683 | |
2684 | tmp = rcache_get_reg(SHR_SP, RC_GR_RMW); |
2685 | emith_sub_r_imm(tmp, 4*2); |
2686 | // push SR |
2687 | tmp = rcache_get_reg_arg(0, SHR_SP); |
2688 | emith_add_r_imm(tmp, 4); |
2689 | tmp = rcache_get_reg_arg(1, SHR_SR); |
2690 | emith_clear_msb(tmp, tmp, 22); |
2691 | emit_memhandler_write(2); |
2692 | // push PC |
2693 | rcache_get_reg_arg(0, SHR_SP); |
2694 | tmp = rcache_get_tmp_arg(1); |
6a5b1b36 |
2695 | if (drcf.pending_branch_indirect) { |
2696 | tmp2 = rcache_get_reg(SHR_PC, RC_GR_READ); |
2697 | emith_move_r_r(tmp, tmp2); |
2698 | } |
2699 | else |
2700 | emith_move_r_imm(tmp, pc - 2); |
001f73a0 |
2701 | emit_memhandler_write(2); |
2702 | // obtain new PC |
6a5b1b36 |
2703 | v = (op_flags[i] & OF_B_IN_DS) ? 6 : 4; |
2704 | emit_memhandler_read_rr(SHR_PC, SHR_VBR, v * 4, 2); |
001f73a0 |
2705 | // indirect jump -> back to dispatcher |
2706 | rcache_flush(); |
2707 | emith_jump(sh2_drc_dispatcher); |
679af8a3 |
2708 | break; |
2709 | } |
2710 | |
e898de13 |
2711 | end_op: |
23686515 |
2712 | rcache_unlock_all(); |
2713 | |
6d797957 |
2714 | cycles += opd->cycles; |
2715 | |
bf092a36 |
2716 | if (op_flags[i+1] & OF_DELAY_OP) { |
2717 | do_host_disasm(tcache_id); |
2718 | continue; |
2719 | } |
2720 | |
2721 | // test irq? |
2722 | if (drcf.test_irq && !drcf.pending_branch_direct) { |
2723 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2724 | FLUSH_CYCLES(sr); |
fa841b44 |
2725 | if (!drcf.pending_branch_indirect) |
2726 | emit_move_r_imm32(SHR_PC, pc); |
bf092a36 |
2727 | rcache_flush(); |
2728 | emith_call(sh2_drc_test_irq); |
2729 | drcf.test_irq = 0; |
2730 | } |
2731 | |
2732 | // branch handling (with/without delay) |
2733 | if (drcf.pending_branch_direct) |
44e6452e |
2734 | { |
bf092a36 |
2735 | struct op_data *opd_b = |
2736 | (op_flags[i] & OF_DELAY_OP) ? &ops[i-1] : opd; |
2737 | u32 target_pc = opd_b->imm; |
898d51a7 |
2738 | int cond = -1, ncond = -1; |
bf092a36 |
2739 | void *target = NULL; |
898d51a7 |
2740 | EMITH_SJMP_DECL_(); |
44e6452e |
2741 | |
18b94127 |
2742 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
e05b81fc |
2743 | FLUSH_CYCLES(sr); |
898d51a7 |
2744 | rcache_clean(); |
18b94127 |
2745 | |
898d51a7 |
2746 | if (opd_b->op != OP_BRANCH) { |
bf092a36 |
2747 | cond = (opd_b->op == OP_BRANCH_CF) ? DCOND_EQ : DCOND_NE; |
898d51a7 |
2748 | ncond = (opd_b->op == OP_BRANCH_CF) ? DCOND_NE : DCOND_EQ; |
2749 | } |
bf092a36 |
2750 | if (cond != -1) { |
2751 | int ctaken = (op_flags[i] & OF_DELAY_OP) ? 1 : 2; |
2752 | |
2753 | if (delay_dep_fw & BITMASK1(SHR_T)) |
2754 | emith_tst_r_imm(sr, T_save); |
2755 | else |
2756 | emith_tst_r_imm(sr, T); |
2757 | |
898d51a7 |
2758 | EMITH_SJMP_START_(ncond); |
bf092a36 |
2759 | emith_sub_r_imm_c(cond, sr, ctaken<<12); |
2760 | } |
5f0ca48f |
2761 | |
5686d931 |
2762 | #if LINK_BRANCHES |
bf092a36 |
2763 | if (find_in_array(branch_target_pc, branch_target_count, target_pc) >= 0) |
2764 | { |
44e6452e |
2765 | // local branch |
2766 | // XXX: jumps back can be linked already |
bf092a36 |
2767 | if (branch_patch_count < MAX_LOCAL_BRANCHES) { |
2768 | target = tcache_ptr; |
2769 | branch_patch_pc[branch_patch_count] = target_pc; |
2770 | branch_patch_ptr[branch_patch_count] = target; |
2771 | branch_patch_count++; |
44e6452e |
2772 | } |
bf092a36 |
2773 | else |
2774 | dbg(1, "warning: too many local branches"); |
44e6452e |
2775 | } |
bf092a36 |
2776 | |
2777 | if (target == NULL) |
5686d931 |
2778 | #endif |
2779 | { |
44e6452e |
2780 | // can't resolve branch locally, make a block exit |
2781 | emit_move_r_imm32(SHR_PC, target_pc); |
2782 | rcache_clean(); |
2783 | |
00a725a8 |
2784 | target = dr_prepare_ext_branch(target_pc, sh2->is_slave, tcache_id); |
44e6452e |
2785 | if (target == NULL) |
2786 | return NULL; |
18b94127 |
2787 | } |
44e6452e |
2788 | |
898d51a7 |
2789 | if (cond != -1) { |
bf092a36 |
2790 | emith_jump_cond_patchable(cond, target); |
898d51a7 |
2791 | EMITH_SJMP_END_(ncond); |
2792 | } |
6976a547 |
2793 | else { |
bf092a36 |
2794 | emith_jump_patchable(target); |
6976a547 |
2795 | rcache_invalidate(); |
2796 | } |
44e6452e |
2797 | |
bf092a36 |
2798 | drcf.pending_branch_direct = 0; |
2799 | } |
2800 | else if (drcf.pending_branch_indirect) { |
e05b81fc |
2801 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2802 | FLUSH_CYCLES(sr); |
2803 | rcache_flush(); |
bf092a36 |
2804 | emith_jump(sh2_drc_dispatcher); |
2805 | drcf.pending_branch_indirect = 0; |
e05b81fc |
2806 | } |
e898de13 |
2807 | |
f4bb5d6b |
2808 | do_host_disasm(tcache_id); |
44e6452e |
2809 | } |
f4bb5d6b |
2810 | |
18b94127 |
2811 | tmp = rcache_get_reg(SHR_SR, RC_GR_RMW); |
e05b81fc |
2812 | FLUSH_CYCLES(tmp); |
18b94127 |
2813 | rcache_flush(); |
44e6452e |
2814 | |
bf092a36 |
2815 | // check the last op |
2816 | if (op_flags[i-1] & OF_DELAY_OP) |
2817 | opd = &ops[i-2]; |
2818 | else |
2819 | opd = &ops[i-1]; |
2820 | |
2821 | if (opd->op != OP_BRANCH && opd->op != OP_BRANCH_R |
2822 | && opd->op != OP_BRANCH_RF && opd->op != OP_RTE) |
2823 | { |
44e6452e |
2824 | void *target; |
bf092a36 |
2825 | |
2826 | emit_move_r_imm32(SHR_PC, pc); |
44e6452e |
2827 | rcache_flush(); |
2828 | |
bf092a36 |
2829 | target = dr_prepare_ext_branch(pc, sh2->is_slave, tcache_id); |
44e6452e |
2830 | if (target == NULL) |
2831 | return NULL; |
2832 | emith_jump_patchable(target); |
2833 | } |
18b94127 |
2834 | |
2835 | // link local branches |
2836 | for (i = 0; i < branch_patch_count; i++) { |
2837 | void *target; |
2838 | int t; |
18b94127 |
2839 | t = find_in_array(branch_target_pc, branch_target_count, branch_patch_pc[i]); |
44e6452e |
2840 | target = branch_target_ptr[t]; |
2841 | if (target == NULL) { |
fcdefcf6 |
2842 | // flush pc and go back to dispatcher (this should no longer happen) |
2843 | dbg(1, "stray branch to %08x %p", branch_patch_pc[i], tcache_ptr); |
18b94127 |
2844 | target = tcache_ptr; |
2845 | emit_move_r_imm32(SHR_PC, branch_patch_pc[i]); |
2846 | rcache_flush(); |
e05b81fc |
2847 | emith_jump(sh2_drc_dispatcher); |
18b94127 |
2848 | } |
2849 | emith_jump_patch(branch_patch_ptr[i], target); |
2850 | } |
2851 | |
f4bb5d6b |
2852 | // mark memory blocks as containing compiled code |
a2b8c5a5 |
2853 | // override any overlay blocks as they become unreachable anyway |
fa841b44 |
2854 | if ((block->addr & 0xc7fc0000) == 0x06000000 |
2855 | || (block->addr & 0xfffff000) == 0xc0000000) |
a2b8c5a5 |
2856 | { |
228ee974 |
2857 | u16 *drc_ram_blk = NULL; |
4943816b |
2858 | u32 addr, mask = 0, shift = 0; |
a2b8c5a5 |
2859 | |
2860 | if (tcache_id != 0) { |
2861 | // data array, BIOS |
2862 | drc_ram_blk = Pico32xMem->drcblk_da[sh2->is_slave]; |
2863 | shift = SH2_DRCBLK_DA_SHIFT; |
4943816b |
2864 | mask = 0xfff; |
f4bb5d6b |
2865 | } |
fa841b44 |
2866 | else { |
a2b8c5a5 |
2867 | // SDRAM |
2868 | drc_ram_blk = Pico32xMem->drcblk_ram; |
2869 | shift = SH2_DRCBLK_RAM_SHIFT; |
4943816b |
2870 | mask = 0x3ffff; |
f4bb5d6b |
2871 | } |
a2b8c5a5 |
2872 | |
228ee974 |
2873 | // mark recompiled insns |
2874 | drc_ram_blk[(base_pc & mask) >> shift] = 1; |
2875 | for (pc = base_pc; pc < end_pc; pc += 2) |
2876 | drc_ram_blk[(pc & mask) >> shift] = 1; |
04092e32 |
2877 | |
2878 | // mark literals |
2879 | for (i = 0; i < literal_addr_count; i++) { |
2880 | tmp = literal_addr[i]; |
228ee974 |
2881 | drc_ram_blk[(tmp & mask) >> shift] = 1; |
04092e32 |
2882 | } |
4943816b |
2883 | |
2884 | // add to invalidation lookup lists |
51d86e55 |
2885 | addr = base_pc & ~(INVAL_PAGE_SIZE - 1); |
2886 | for (; addr < end_literals; addr += INVAL_PAGE_SIZE) { |
2887 | i = (addr & mask) / INVAL_PAGE_SIZE; |
228ee974 |
2888 | add_to_block_list(&inval_lookup[tcache_id][i], block); |
4943816b |
2889 | } |
679af8a3 |
2890 | } |
2891 | |
f4bb5d6b |
2892 | tcache_ptrs[tcache_id] = tcache_ptr; |
2893 | |
228ee974 |
2894 | host_instructions_updated(block_entry_ptr, tcache_ptr); |
553c3eaa |
2895 | |
f4bb5d6b |
2896 | do_host_disasm(tcache_id); |
51d86e55 |
2897 | |
2898 | if (drcf.literals_disabled && literal_addr_count) |
2899 | dbg(1, "literals_disabled && literal_addr_count?"); |
fcdefcf6 |
2900 | dbg(2, " block #%d,%d tcache %d/%d, insns %d -> %d %.3f", |
4943816b |
2901 | tcache_id, blkid_main, |
f4bb5d6b |
2902 | tcache_ptr - tcache_bases[tcache_id], tcache_sizes[tcache_id], |
4943816b |
2903 | insns_compiled, host_insn_count, (float)host_insn_count / insns_compiled); |
f4bb5d6b |
2904 | if ((sh2->pc & 0xc6000000) == 0x02000000) // ROM |
fcdefcf6 |
2905 | dbg(2, " hash collisions %d/%d", hash_collisions, block_counts[tcache_id]); |
18b94127 |
2906 | /* |
2907 | printf("~~~\n"); |
228ee974 |
2908 | tcache_dsm_ptrs[tcache_id] = block_entry_ptr; |
18b94127 |
2909 | do_host_disasm(tcache_id); |
2910 | printf("~~~\n"); |
2911 | */ |
2912 | |
fcdefcf6 |
2913 | #if (DRC_DEBUG & 4) |
553c3eaa |
2914 | fflush(stdout); |
2915 | #endif |
2916 | |
228ee974 |
2917 | return block_entry_ptr; |
679af8a3 |
2918 | } |
2919 | |
e05b81fc |
2920 | static void sh2_generate_utils(void) |
679af8a3 |
2921 | { |
e05b81fc |
2922 | int arg0, arg1, arg2, sr, tmp; |
52d759c3 |
2923 | |
5686d931 |
2924 | sh2_drc_write32 = p32x_sh2_write32; |
2925 | sh2_drc_read8 = p32x_sh2_read8; |
2926 | sh2_drc_read16 = p32x_sh2_read16; |
2927 | sh2_drc_read32 = p32x_sh2_read32; |
2928 | |
e05b81fc |
2929 | host_arg2reg(arg0, 0); |
2930 | host_arg2reg(arg1, 1); |
2931 | host_arg2reg(arg2, 2); |
2932 | emith_move_r_r(arg0, arg0); // nop |
679af8a3 |
2933 | |
e05b81fc |
2934 | // sh2_drc_exit(void) |
2935 | sh2_drc_exit = (void *)tcache_ptr; |
2936 | emit_do_static_regs(1, arg2); |
2937 | emith_sh2_drc_exit(); |
679af8a3 |
2938 | |
e05b81fc |
2939 | // sh2_drc_dispatcher(void) |
2940 | sh2_drc_dispatcher = (void *)tcache_ptr; |
2941 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
2942 | emith_cmp_r_imm(sr, 0); |
2943 | emith_jump_cond(DCOND_LT, sh2_drc_exit); |
2944 | rcache_invalidate(); |
2945 | emith_ctx_read(arg0, SHR_PC * 4); |
2946 | emith_ctx_read(arg1, offsetof(SH2, is_slave)); |
898d51a7 |
2947 | emith_add_r_r_ptr_imm(arg2, CONTEXT_REG, offsetof(SH2, drc_tmp)); |
a2b8c5a5 |
2948 | emith_call(dr_lookup_block); |
e05b81fc |
2949 | emit_block_entry(); |
2950 | // lookup failed, call sh2_translate() |
898d51a7 |
2951 | emith_move_r_r_ptr(arg0, CONTEXT_REG); |
e05b81fc |
2952 | emith_ctx_read(arg1, offsetof(SH2, drc_tmp)); // tcache_id |
2953 | emith_call(sh2_translate); |
2954 | emit_block_entry(); |
2955 | // sh2_translate() failed, flush cache and retry |
2956 | emith_ctx_read(arg0, offsetof(SH2, drc_tmp)); |
2957 | emith_call(flush_tcache); |
898d51a7 |
2958 | emith_move_r_r_ptr(arg0, CONTEXT_REG); |
e05b81fc |
2959 | emith_ctx_read(arg1, offsetof(SH2, drc_tmp)); |
2960 | emith_call(sh2_translate); |
2961 | emit_block_entry(); |
2962 | // XXX: can't translate, fail |
c25d78ee |
2963 | emith_call(dr_failure); |
e05b81fc |
2964 | |
2965 | // sh2_drc_test_irq(void) |
2966 | // assumes it's called from main function (may jump to dispatcher) |
2967 | sh2_drc_test_irq = (void *)tcache_ptr; |
2968 | emith_ctx_read(arg1, offsetof(SH2, pending_level)); |
2969 | sr = rcache_get_reg(SHR_SR, RC_GR_READ); |
2970 | emith_lsr(arg0, sr, I_SHIFT); |
2971 | emith_and_r_imm(arg0, 0x0f); |
2972 | emith_cmp_r_r(arg1, arg0); // pending_level > ((sr >> 4) & 0x0f)? |
2973 | EMITH_SJMP_START(DCOND_GT); |
2974 | emith_ret_c(DCOND_LE); // nope, return |
2975 | EMITH_SJMP_END(DCOND_GT); |
2976 | // adjust SP |
2977 | tmp = rcache_get_reg(SHR_SP, RC_GR_RMW); |
2978 | emith_sub_r_imm(tmp, 4*2); |
2979 | rcache_clean(); |
2980 | // push SR |
2981 | tmp = rcache_get_reg_arg(0, SHR_SP); |
2982 | emith_add_r_imm(tmp, 4); |
2983 | tmp = rcache_get_reg_arg(1, SHR_SR); |
2984 | emith_clear_msb(tmp, tmp, 22); |
898d51a7 |
2985 | emith_move_r_r_ptr(arg2, CONTEXT_REG); |
5686d931 |
2986 | emith_call(p32x_sh2_write32); // XXX: use sh2_drc_write32? |
e05b81fc |
2987 | rcache_invalidate(); |
2988 | // push PC |
2989 | rcache_get_reg_arg(0, SHR_SP); |
2990 | emith_ctx_read(arg1, SHR_PC * 4); |
898d51a7 |
2991 | emith_move_r_r_ptr(arg2, CONTEXT_REG); |
e05b81fc |
2992 | emith_call(p32x_sh2_write32); |
2993 | rcache_invalidate(); |
2994 | // update I, cycles, do callback |
2995 | emith_ctx_read(arg1, offsetof(SH2, pending_level)); |
2996 | sr = rcache_get_reg(SHR_SR, RC_GR_RMW); |
2997 | emith_bic_r_imm(sr, I); |
2998 | emith_or_r_r_lsl(sr, arg1, I_SHIFT); |
2999 | emith_sub_r_imm(sr, 13 << 12); // at least 13 cycles |
3000 | rcache_flush(); |
898d51a7 |
3001 | emith_move_r_r_ptr(arg0, CONTEXT_REG); |
e05b81fc |
3002 | emith_call_ctx(offsetof(SH2, irq_callback)); // vector = sh2->irq_callback(sh2, level); |
3003 | // obtain new PC |
898d51a7 |
3004 | emith_lsl(arg0, RET_REG, 2); |
e05b81fc |
3005 | emith_ctx_read(arg1, SHR_VBR * 4); |
3006 | emith_add_r_r(arg0, arg1); |
898d51a7 |
3007 | tmp = emit_memhandler_read(2); |
3008 | emith_ctx_write(tmp, SHR_PC * 4); |
3009 | #if defined(__i386__) || defined(__x86_64__) |
3010 | emith_add_r_r_ptr_imm(xSP, xSP, sizeof(void *)); // fix stack |
e05b81fc |
3011 | #endif |
3012 | emith_jump(sh2_drc_dispatcher); |
3013 | rcache_invalidate(); |
3014 | |
3015 | // sh2_drc_entry(SH2 *sh2) |
3016 | sh2_drc_entry = (void *)tcache_ptr; |
3017 | emith_sh2_drc_entry(); |
898d51a7 |
3018 | emith_move_r_r_ptr(CONTEXT_REG, arg0); // move ctx, arg0 |
e05b81fc |
3019 | emit_do_static_regs(0, arg2); |
3020 | emith_call(sh2_drc_test_irq); |
3021 | emith_jump(sh2_drc_dispatcher); |
3022 | |
e05b81fc |
3023 | // sh2_drc_write8(u32 a, u32 d) |
3024 | sh2_drc_write8 = (void *)tcache_ptr; |
898d51a7 |
3025 | emith_ctx_read_ptr(arg2, offsetof(SH2, write8_tab)); |
d056bef8 |
3026 | emith_sh2_wcall(arg0, arg2); |
e05b81fc |
3027 | |
3028 | // sh2_drc_write16(u32 a, u32 d) |
3029 | sh2_drc_write16 = (void *)tcache_ptr; |
898d51a7 |
3030 | emith_ctx_read_ptr(arg2, offsetof(SH2, write16_tab)); |
d056bef8 |
3031 | emith_sh2_wcall(arg0, arg2); |
e05b81fc |
3032 | |
5686d931 |
3033 | #ifdef PDB_NET |
3034 | // debug |
3035 | #define MAKE_READ_WRAPPER(func) { \ |
3036 | void *tmp = (void *)tcache_ptr; \ |
a2b8c5a5 |
3037 | emith_push_ret(); \ |
5686d931 |
3038 | emith_call(func); \ |
3039 | emith_ctx_read(arg2, offsetof(SH2, pdb_io_csum[0])); \ |
3040 | emith_addf_r_r(arg2, arg0); \ |
3041 | emith_ctx_write(arg2, offsetof(SH2, pdb_io_csum[0])); \ |
3042 | emith_ctx_read(arg2, offsetof(SH2, pdb_io_csum[1])); \ |
3043 | emith_adc_r_imm(arg2, 0x01000000); \ |
3044 | emith_ctx_write(arg2, offsetof(SH2, pdb_io_csum[1])); \ |
a2b8c5a5 |
3045 | emith_pop_and_ret(); \ |
5686d931 |
3046 | func = tmp; \ |
3047 | } |
3048 | #define MAKE_WRITE_WRAPPER(func) { \ |
3049 | void *tmp = (void *)tcache_ptr; \ |
3050 | emith_ctx_read(arg2, offsetof(SH2, pdb_io_csum[0])); \ |
3051 | emith_addf_r_r(arg2, arg1); \ |
3052 | emith_ctx_write(arg2, offsetof(SH2, pdb_io_csum[0])); \ |
3053 | emith_ctx_read(arg2, offsetof(SH2, pdb_io_csum[1])); \ |
3054 | emith_adc_r_imm(arg2, 0x01000000); \ |
3055 | emith_ctx_write(arg2, offsetof(SH2, pdb_io_csum[1])); \ |
898d51a7 |
3056 | emith_move_r_r_ptr(arg2, CONTEXT_REG); \ |
5686d931 |
3057 | emith_jump(func); \ |
3058 | func = tmp; \ |
3059 | } |
3060 | |
3061 | MAKE_READ_WRAPPER(sh2_drc_read8); |
3062 | MAKE_READ_WRAPPER(sh2_drc_read16); |
3063 | MAKE_READ_WRAPPER(sh2_drc_read32); |
3064 | MAKE_WRITE_WRAPPER(sh2_drc_write8); |
5686d931 |
3065 | MAKE_WRITE_WRAPPER(sh2_drc_write16); |
5686d931 |
3066 | MAKE_WRITE_WRAPPER(sh2_drc_write32); |
fcdefcf6 |
3067 | #if (DRC_DEBUG & 4) |
5686d931 |
3068 | host_dasm_new_symbol(sh2_drc_read8); |
3069 | host_dasm_new_symbol(sh2_drc_read16); |
3070 | host_dasm_new_symbol(sh2_drc_read32); |
3071 | host_dasm_new_symbol(sh2_drc_write32); |
3072 | #endif |
3073 | #endif |
3074 | |
e05b81fc |
3075 | rcache_invalidate(); |
fcdefcf6 |
3076 | #if (DRC_DEBUG & 4) |
e05b81fc |
3077 | host_dasm_new_symbol(sh2_drc_entry); |
3078 | host_dasm_new_symbol(sh2_drc_dispatcher); |
3079 | host_dasm_new_symbol(sh2_drc_exit); |
3080 | host_dasm_new_symbol(sh2_drc_test_irq); |
e05b81fc |
3081 | host_dasm_new_symbol(sh2_drc_write8); |
e05b81fc |
3082 | host_dasm_new_symbol(sh2_drc_write16); |
679af8a3 |
3083 | #endif |
679af8a3 |
3084 | } |
3085 | |
f0ed9e38 |
3086 | static void sh2_smc_rm_block(struct block_desc *bd, int tcache_id, u32 ram_mask) |
f4bb5d6b |
3087 | { |
51d86e55 |
3088 | u32 i, addr, end_addr; |
04092e32 |
3089 | void *tmp; |
3090 | |
f0ed9e38 |
3091 | dbg(2, " killing block %08x-%08x-%08x, blkid %d,%d", |
51d86e55 |
3092 | bd->addr, bd->addr + bd->size_nolit, bd->addr + bd->size, |
3093 | tcache_id, bd - block_tables[tcache_id]); |
228ee974 |
3094 | if (bd->addr == 0 || bd->entry_count == 0) { |
fcdefcf6 |
3095 | dbg(1, " killing dead block!? %08x", bd->addr); |
569420b0 |
3096 | return; |
04092e32 |
3097 | } |
3098 | |
4943816b |
3099 | // remove from inval_lookup |
51d86e55 |
3100 | addr = bd->addr & ~(INVAL_PAGE_SIZE - 1); |
3101 | end_addr = bd->addr + bd->size; |
3102 | for (; addr < end_addr; addr += INVAL_PAGE_SIZE) { |
3103 | i = (addr & ram_mask) / INVAL_PAGE_SIZE; |
4943816b |
3104 | rm_from_block_list(&inval_lookup[tcache_id][i], bd); |
3105 | } |
3106 | |
04092e32 |
3107 | tmp = tcache_ptr; |
569420b0 |
3108 | |
00a725a8 |
3109 | // remove from hash table, make incoming links unresolved |
3110 | // XXX: maybe patch branches w/flush instead? |
228ee974 |
3111 | for (i = 0; i < bd->entry_count; i++) { |
3112 | rm_from_hashlist(&bd->entryp[i], tcache_id); |
3113 | |
3114 | // since we never reuse tcache space of dead blocks, |
3115 | // insert jump to dispatcher for blocks that are linked to this |
3116 | tcache_ptr = bd->entryp[i].tcache_ptr; |
fa841b44 |
3117 | emit_move_r_imm32(SHR_PC, bd->entryp[i].pc); |
228ee974 |
3118 | rcache_flush(); |
3119 | emith_jump(sh2_drc_dispatcher); |
3120 | |
3121 | host_instructions_updated(bd->entryp[i].tcache_ptr, tcache_ptr); |
00a725a8 |
3122 | |
f0ed9e38 |
3123 | unregister_links(&bd->entryp[i], tcache_id); |
228ee974 |
3124 | } |
3125 | |
04092e32 |
3126 | tcache_ptr = tmp; |
3127 | |
51d86e55 |
3128 | bd->addr = bd->size = bd->size_nolit = 0; |
228ee974 |
3129 | bd->entry_count = 0; |
a2b8c5a5 |
3130 | } |
f4bb5d6b |
3131 | |
d602fd4f |
3132 | /* |
3133 | 04205:243: == msh2 block #0,200 060017a8-060017f0 -> 0x27cb9c |
3134 | 060017a8 d11c MOV.L @($70,PC),R1 ; @$0600181c |
3135 | |
3136 | 04230:261: msh2 xsh w32 [260017a8] d225e304 |
3137 | 04230:261: msh2 smc check @260017a8 |
3138 | 04239:226: = ssh2 enter 060017a8 0x27cb9c, c=173 |
3139 | */ |
f0ed9e38 |
3140 | static void sh2_smc_rm_blocks(u32 a, u16 *drc_ram_blk, int tcache_id, u32 shift, u32 mask) |
a2b8c5a5 |
3141 | { |
4943816b |
3142 | struct block_list **blist = NULL, *entry; |
e1553677 |
3143 | struct block_desc *block; |
d602fd4f |
3144 | u32 start_addr, end_addr, taddr, i; |
3145 | u32 from = ~0, to = 0; |
3146 | |
3147 | // ignore cache-through |
3148 | a &= ~0x20000000; |
4943816b |
3149 | |
51d86e55 |
3150 | blist = &inval_lookup[tcache_id][(a & mask) / INVAL_PAGE_SIZE]; |
4943816b |
3151 | entry = *blist; |
3152 | while (entry != NULL) { |
3153 | block = entry->block; |
d602fd4f |
3154 | start_addr = block->addr & ~0x20000000; |
3155 | end_addr = start_addr + block->size; |
3156 | if (start_addr <= a && a < end_addr) { |
51d86e55 |
3157 | // get addr range that includes all removed blocks |
d602fd4f |
3158 | if (from > start_addr) |
3159 | from = start_addr; |
51d86e55 |
3160 | if (to < end_addr) |
3161 | to = end_addr; |
4943816b |
3162 | |
d602fd4f |
3163 | if (a >= start_addr + block->size_nolit) |
51d86e55 |
3164 | literal_disabled_frames = 3; |
00468b0a |
3165 | sh2_smc_rm_block(block, tcache_id, mask); |
4943816b |
3166 | |
3167 | // entry lost, restart search |
3168 | entry = *blist; |
569420b0 |
3169 | continue; |
3170 | } |
4943816b |
3171 | entry = entry->next; |
04092e32 |
3172 | } |
3173 | |
51d86e55 |
3174 | if (from >= to) |
3175 | return; |
3176 | |
3177 | // update range around a to match latest state |
3178 | from &= ~(INVAL_PAGE_SIZE - 1); |
3179 | to |= (INVAL_PAGE_SIZE - 1); |
3180 | for (taddr = from; taddr < to; taddr += INVAL_PAGE_SIZE) { |
3181 | i = (taddr & mask) / INVAL_PAGE_SIZE; |
3182 | entry = inval_lookup[tcache_id][i]; |
3183 | |
3184 | for (; entry != NULL; entry = entry->next) { |
3185 | block = entry->block; |
3186 | |
d602fd4f |
3187 | start_addr = block->addr & ~0x20000000; |
3188 | if (start_addr > a) { |
3189 | if (to > start_addr) |
3190 | to = start_addr; |
51d86e55 |
3191 | } |
3192 | else { |
d602fd4f |
3193 | end_addr = start_addr + block->size; |
51d86e55 |
3194 | if (from < end_addr) |
3195 | from = end_addr; |
3196 | } |
6976a547 |
3197 | } |
3198 | } |
3199 | |
3200 | // clear code marks |
4943816b |
3201 | if (from < to) { |
3202 | u16 *p = drc_ram_blk + ((from & mask) >> shift); |
3203 | memset(p, 0, (to - from) >> (shift - 1)); |
f4bb5d6b |
3204 | } |
f4bb5d6b |
3205 | } |
3206 | |
3207 | void sh2_drc_wcheck_ram(unsigned int a, int val, int cpuid) |
3208 | { |
fcdefcf6 |
3209 | dbg(2, "%csh2 smc check @%08x", cpuid ? 's' : 'm', a); |
f0ed9e38 |
3210 | sh2_smc_rm_blocks(a, Pico32xMem->drcblk_ram, 0, SH2_DRCBLK_RAM_SHIFT, 0x3ffff); |
f4bb5d6b |
3211 | } |
3212 | |
3213 | void sh2_drc_wcheck_da(unsigned int a, int val, int cpuid) |
3214 | { |
fcdefcf6 |
3215 | dbg(2, "%csh2 smc check @%08x", cpuid ? 's' : 'm', a); |
f0ed9e38 |
3216 | sh2_smc_rm_blocks(a, Pico32xMem->drcblk_da[cpuid], |
a2b8c5a5 |
3217 | 1 + cpuid, SH2_DRCBLK_DA_SHIFT, 0xfff); |
f4bb5d6b |
3218 | } |
3219 | |
0185b677 |
3220 | int sh2_execute_drc(SH2 *sh2c, int cycles) |
679af8a3 |
3221 | { |
e05b81fc |
3222 | int ret_cycles; |
52d759c3 |
3223 | |
679af8a3 |
3224 | // cycles are kept in SHR_SR unused bits (upper 20) |
65514d85 |
3225 | // bit11 contains T saved for delay slot |
18b94127 |
3226 | // others are usual SH2 flags |
52d759c3 |
3227 | sh2c->sr &= 0x3f3; |
3228 | sh2c->sr |= cycles << 12; |
e05b81fc |
3229 | sh2_drc_entry(sh2c); |
679af8a3 |
3230 | |
e05b81fc |
3231 | // TODO: irq cycles |
3232 | ret_cycles = (signed int)sh2c->sr >> 12; |
3233 | if (ret_cycles > 0) |
fcdefcf6 |
3234 | dbg(1, "warning: drc returned with cycles: %d", ret_cycles); |
679af8a3 |
3235 | |
0219d379 |
3236 | sh2c->sr &= 0x3f3; |
0185b677 |
3237 | return ret_cycles; |
679af8a3 |
3238 | } |
3239 | |
fcdefcf6 |
3240 | #if (DRC_DEBUG & 2) |
9bb5d91c |
3241 | void block_stats(void) |
f4bb5d6b |
3242 | { |
3243 | int c, b, i, total = 0; |
3244 | |
9bb5d91c |
3245 | printf("block stats:\n"); |
f4bb5d6b |
3246 | for (b = 0; b < ARRAY_SIZE(block_tables); b++) |
3247 | for (i = 0; i < block_counts[b]; i++) |
3248 | if (block_tables[b][i].addr != 0) |
3249 | total += block_tables[b][i].refcount; |
3250 | |
3251 | for (c = 0; c < 10; c++) { |
e1553677 |
3252 | struct block_desc *blk, *maxb = NULL; |
f4bb5d6b |
3253 | int max = 0; |
3254 | for (b = 0; b < ARRAY_SIZE(block_tables); b++) { |
3255 | for (i = 0; i < block_counts[b]; i++) { |
3256 | blk = &block_tables[b][i]; |
3257 | if (blk->addr != 0 && blk->refcount > max) { |
3258 | max = blk->refcount; |
3259 | maxb = blk; |
3260 | } |
3261 | } |
3262 | } |
3263 | if (maxb == NULL) |
3264 | break; |
3265 | printf("%08x %9d %2.3f%%\n", maxb->addr, maxb->refcount, |
3266 | (double)maxb->refcount / total * 100.0); |
3267 | maxb->refcount = 0; |
3268 | } |
553c3eaa |
3269 | |
3270 | for (b = 0; b < ARRAY_SIZE(block_tables); b++) |
3271 | for (i = 0; i < block_counts[b]; i++) |
3272 | block_tables[b][i].refcount = 0; |
f4bb5d6b |
3273 | } |
553c3eaa |
3274 | #else |
3275 | #define block_stats() |
f4bb5d6b |
3276 | #endif |
3277 | |
553c3eaa |
3278 | void sh2_drc_flush_all(void) |
3279 | { |
3280 | block_stats(); |
3281 | flush_tcache(0); |
3282 | flush_tcache(1); |
3283 | flush_tcache(2); |
3284 | } |
3285 | |
23686515 |
3286 | void sh2_drc_mem_setup(SH2 *sh2) |
3287 | { |
3288 | // fill the convenience pointers |
895d1512 |
3289 | sh2->p_bios = sh2->is_slave ? Pico32xMem->sh2_rom_s.w : Pico32xMem->sh2_rom_m.w; |
f81107f5 |
3290 | sh2->p_da = sh2->data_array; |
23686515 |
3291 | sh2->p_sdram = Pico32xMem->sdram; |
3292 | sh2->p_rom = Pico.rom; |
3293 | } |
3294 | |
51d86e55 |
3295 | void sh2_drc_frame(void) |
3296 | { |
3297 | if (literal_disabled_frames > 0) |
3298 | literal_disabled_frames--; |
3299 | } |
3300 | |
679af8a3 |
3301 | int sh2_drc_init(SH2 *sh2) |
3302 | { |
44e6452e |
3303 | int i; |
7f5a3fc1 |
3304 | |
44e6452e |
3305 | if (block_tables[0] == NULL) |
3306 | { |
3307 | for (i = 0; i < TCACHE_BUFFERS; i++) { |
3308 | block_tables[i] = calloc(block_max_counts[i], sizeof(*block_tables[0])); |
3309 | if (block_tables[i] == NULL) |
3310 | goto fail; |
3311 | // max 2 block links (exits) per block |
00a725a8 |
3312 | block_link_pool[i] = calloc(block_link_pool_max_counts[i], |
3313 | sizeof(*block_link_pool[0])); |
3314 | if (block_link_pool[i] == NULL) |
44e6452e |
3315 | goto fail; |
4943816b |
3316 | |
51d86e55 |
3317 | inval_lookup[i] = calloc(ram_sizes[i] / INVAL_PAGE_SIZE, |
4943816b |
3318 | sizeof(inval_lookup[0])); |
3319 | if (inval_lookup[i] == NULL) |
3320 | goto fail; |
228ee974 |
3321 | |
3322 | hash_tables[i] = calloc(hash_table_sizes[i], sizeof(*hash_tables[0])); |
3323 | if (hash_tables[i] == NULL) |
3324 | goto fail; |
44e6452e |
3325 | } |
3326 | memset(block_counts, 0, sizeof(block_counts)); |
00a725a8 |
3327 | memset(block_link_pool_counts, 0, sizeof(block_link_pool_counts)); |
e898de13 |
3328 | |
44e6452e |
3329 | drc_cmn_init(); |
8796b7ee |
3330 | tcache_ptr = tcache; |
3331 | sh2_generate_utils(); |
a2b8c5a5 |
3332 | host_instructions_updated(tcache, tcache_ptr); |
8796b7ee |
3333 | |
8796b7ee |
3334 | tcache_bases[0] = tcache_ptrs[0] = tcache_ptr; |
44e6452e |
3335 | for (i = 1; i < ARRAY_SIZE(tcache_bases); i++) |
f4bb5d6b |
3336 | tcache_bases[i] = tcache_ptrs[i] = tcache_bases[i - 1] + tcache_sizes[i - 1]; |
f4bb5d6b |
3337 | |
fcdefcf6 |
3338 | #if (DRC_DEBUG & 4) |
f4bb5d6b |
3339 | for (i = 0; i < ARRAY_SIZE(block_tables); i++) |
3340 | tcache_dsm_ptrs[i] = tcache_bases[i]; |
8796b7ee |
3341 | // disasm the utils |
3342 | tcache_dsm_ptrs[0] = tcache; |
3343 | do_host_disasm(0); |
f4bb5d6b |
3344 | #endif |
e898de13 |
3345 | #if (DRC_DEBUG & 1) |
3346 | hash_collisions = 0; |
3347 | #endif |
679af8a3 |
3348 | } |
3349 | |
679af8a3 |
3350 | return 0; |
44e6452e |
3351 | |
3352 | fail: |
3353 | sh2_drc_finish(sh2); |
3354 | return -1; |
41397701 |
3355 | } |
3356 | |
e898de13 |
3357 | void sh2_drc_finish(SH2 *sh2) |
3358 | { |
44e6452e |
3359 | int i; |
3360 | |
228ee974 |
3361 | if (block_tables[0] == NULL) |
3362 | return; |
4943816b |
3363 | |
228ee974 |
3364 | sh2_drc_flush_all(); |
44e6452e |
3365 | |
228ee974 |
3366 | for (i = 0; i < TCACHE_BUFFERS; i++) { |
fcdefcf6 |
3367 | #if (DRC_DEBUG & 4) |
228ee974 |
3368 | printf("~~~ tcache %d\n", i); |
3369 | tcache_dsm_ptrs[i] = tcache_bases[i]; |
3370 | tcache_ptr = tcache_ptrs[i]; |
3371 | do_host_disasm(i); |
44e6452e |
3372 | #endif |
3373 | |
228ee974 |
3374 | if (block_tables[i] != NULL) |
3375 | free(block_tables[i]); |
3376 | block_tables[i] = NULL; |
00a725a8 |
3377 | if (block_link_pool[i] == NULL) |
3378 | free(block_link_pool[i]); |
3379 | block_link_pool[i] = NULL; |
4943816b |
3380 | |
228ee974 |
3381 | if (inval_lookup[i] == NULL) |
3382 | free(inval_lookup[i]); |
3383 | inval_lookup[i] = NULL; |
7f5a3fc1 |
3384 | |
228ee974 |
3385 | if (hash_tables[i] != NULL) { |
3386 | free(hash_tables[i]); |
3387 | hash_tables[i] = NULL; |
3388 | } |
e898de13 |
3389 | } |
3390 | |
228ee974 |
3391 | drc_cmn_cleanup(); |
e898de13 |
3392 | } |
cff531af |
3393 | |
00faec9c |
3394 | #endif /* DRC_SH2 */ |
3395 | |
3396 | static void *dr_get_pc_base(u32 pc, int is_slave) |
3397 | { |
3398 | void *ret = NULL; |
3399 | u32 mask = 0; |
3400 | |
3401 | if ((pc & ~0x7ff) == 0) { |
3402 | // BIOS |
895d1512 |
3403 | ret = is_slave ? Pico32xMem->sh2_rom_s.w : Pico32xMem->sh2_rom_m.w; |
00faec9c |
3404 | mask = 0x7ff; |
3405 | } |
3406 | else if ((pc & 0xfffff000) == 0xc0000000) { |
3407 | // data array |
f81107f5 |
3408 | ret = sh2s[is_slave].data_array; |
00faec9c |
3409 | mask = 0xfff; |
3410 | } |
3411 | else if ((pc & 0xc6000000) == 0x06000000) { |
3412 | // SDRAM |
3413 | ret = Pico32xMem->sdram; |
3414 | mask = 0x03ffff; |
3415 | } |
3416 | else if ((pc & 0xc6000000) == 0x02000000) { |
3417 | // ROM |
eb35ce15 |
3418 | if ((pc & 0x3fffff) < Pico.romsize) |
3419 | ret = Pico.rom; |
00faec9c |
3420 | mask = 0x3fffff; |
3421 | } |
3422 | |
3423 | if (ret == NULL) |
3424 | return (void *)-1; // NULL is valid value |
3425 | |
3426 | return (char *)ret - (pc & ~mask); |
3427 | } |
3428 | |
bf092a36 |
3429 | void scan_block(u32 base_pc, int is_slave, u8 *op_flags, u32 *end_pc_out, |
3430 | u32 *end_literals_out) |
00faec9c |
3431 | { |
3432 | u16 *dr_pc_base; |
bf092a36 |
3433 | u32 pc, op, tmp; |
3434 | u32 end_pc, end_literals = 0; |
ee5f7e99 |
3435 | u32 lowest_mova = 0; |
bf092a36 |
3436 | struct op_data *opd; |
3437 | int next_is_delay = 0; |
3438 | int end_block = 0; |
3439 | int i, i_end; |
00faec9c |
3440 | |
e1553677 |
3441 | memset(op_flags, 0, BLOCK_INSN_LIMIT); |
00faec9c |
3442 | |
3443 | dr_pc_base = dr_get_pc_base(base_pc, is_slave); |
3444 | |
bf092a36 |
3445 | // 1st pass: disassemble |
3446 | for (i = 0, pc = base_pc; ; i++, pc += 2) { |
3447 | // we need an ops[] entry after the last one initialized, |
3448 | // so do it before end_block checks |
3449 | opd = &ops[i]; |
3450 | opd->op = OP_UNHANDLED; |
3451 | opd->rm = -1; |
3452 | opd->source = opd->dest = 0; |
3453 | opd->cycles = 1; |
3454 | opd->imm = 0; |
3455 | |
3456 | if (next_is_delay) { |
3457 | op_flags[i] |= OF_DELAY_OP; |
3458 | next_is_delay = 0; |
00faec9c |
3459 | } |
bf092a36 |
3460 | else if (end_block || i >= BLOCK_INSN_LIMIT - 2) |
3461 | break; |
3462 | |
3463 | op = FETCH_OP(pc); |
3464 | switch ((op & 0xf000) >> 12) |
3465 | { |
3466 | ///////////////////////////////////////////// |
3467 | case 0x00: |
3468 | switch (op & 0x0f) |
3469 | { |
3470 | case 0x02: |
3471 | switch (GET_Fx()) |
3472 | { |
3473 | case 0: // STC SR,Rn 0000nnnn00000010 |
3474 | tmp = SHR_SR; |
3475 | break; |
3476 | case 1: // STC GBR,Rn 0000nnnn00010010 |
3477 | tmp = SHR_GBR; |
3478 | break; |
3479 | case 2: // STC VBR,Rn 0000nnnn00100010 |
3480 | tmp = SHR_VBR; |
3481 | break; |
3482 | default: |
3483 | goto undefined; |
3484 | } |
3485 | opd->op = OP_MOVE; |
3486 | opd->source = BITMASK1(tmp); |
3487 | opd->dest = BITMASK1(GET_Rn()); |
00faec9c |
3488 | break; |
bf092a36 |
3489 | case 0x03: |
3490 | CHECK_UNHANDLED_BITS(0xd0, undefined); |
3491 | // BRAF Rm 0000mmmm00100011 |
3492 | // BSRF Rm 0000mmmm00000011 |
3493 | opd->op = OP_BRANCH_RF; |
3494 | opd->rm = GET_Rn(); |
3495 | opd->source = BITMASK1(opd->rm); |
3496 | opd->dest = BITMASK1(SHR_PC); |
3497 | if (!(op & 0x20)) |
3498 | opd->dest |= BITMASK1(SHR_PR); |
3499 | opd->cycles = 2; |
3500 | next_is_delay = 1; |
3501 | end_block = 1; |
00faec9c |
3502 | break; |
bf092a36 |
3503 | case 0x04: // MOV.B Rm,@(R0,Rn) 0000nnnnmmmm0100 |
3504 | case 0x05: // MOV.W Rm,@(R0,Rn) 0000nnnnmmmm0101 |
3505 | case 0x06: // MOV.L Rm,@(R0,Rn) 0000nnnnmmmm0110 |
3506 | opd->source = BITMASK3(GET_Rm(), SHR_R0, GET_Rn()); |
3507 | break; |
3508 | case 0x07: |
3509 | // MUL.L Rm,Rn 0000nnnnmmmm0111 |
3510 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3511 | opd->dest = BITMASK1(SHR_MACL); |
3512 | opd->cycles = 2; |
3513 | break; |
3514 | case 0x08: |
3515 | CHECK_UNHANDLED_BITS(0xf00, undefined); |
3516 | switch (GET_Fx()) |
3517 | { |
3518 | case 0: // CLRT 0000000000001000 |
3519 | opd->op = OP_SETCLRT; |
3520 | opd->dest = BITMASK1(SHR_T); |
3521 | opd->imm = 0; |
3522 | break; |
3523 | case 1: // SETT 0000000000011000 |
3524 | opd->op = OP_SETCLRT; |
3525 | opd->dest = BITMASK1(SHR_T); |
3526 | opd->imm = 1; |
3527 | break; |
3528 | case 2: // CLRMAC 0000000000101000 |
3529 | opd->dest = BITMASK3(SHR_T, SHR_MACL, SHR_MACH); |
3530 | break; |
3531 | default: |
3532 | goto undefined; |
3533 | } |
3534 | break; |
3535 | case 0x09: |
3536 | switch (GET_Fx()) |
3537 | { |
3538 | case 0: // NOP 0000000000001001 |
3539 | CHECK_UNHANDLED_BITS(0xf00, undefined); |
3540 | break; |
3541 | case 1: // DIV0U 0000000000011001 |
3542 | CHECK_UNHANDLED_BITS(0xf00, undefined); |
3543 | opd->dest = BITMASK2(SHR_SR, SHR_T); |
3544 | break; |
3545 | case 2: // MOVT Rn 0000nnnn00101001 |
3546 | opd->source = BITMASK1(SHR_T); |
3547 | opd->dest = BITMASK1(GET_Rn()); |
3548 | break; |
3549 | default: |
3550 | goto undefined; |
3551 | } |
3552 | break; |
3553 | case 0x0a: |
3554 | switch (GET_Fx()) |
3555 | { |
3556 | case 0: // STS MACH,Rn 0000nnnn00001010 |
3557 | tmp = SHR_MACH; |
3558 | break; |
3559 | case 1: // STS MACL,Rn 0000nnnn00011010 |
3560 | tmp = SHR_MACL; |
3561 | break; |
3562 | case 2: // STS PR,Rn 0000nnnn00101010 |
3563 | tmp = SHR_PR; |
3564 | break; |
3565 | default: |
3566 | goto undefined; |
3567 | } |
3568 | opd->op = OP_MOVE; |
3569 | opd->source = BITMASK1(tmp); |
3570 | opd->dest = BITMASK1(GET_Rn()); |
3571 | break; |
3572 | case 0x0b: |
3573 | CHECK_UNHANDLED_BITS(0xf00, undefined); |
3574 | switch (GET_Fx()) |
3575 | { |
3576 | case 0: // RTS 0000000000001011 |
3577 | opd->op = OP_BRANCH_R; |
3578 | opd->rm = SHR_PR; |
3579 | opd->source = BITMASK1(opd->rm); |
3580 | opd->dest = BITMASK1(SHR_PC); |
3581 | opd->cycles = 2; |
3582 | next_is_delay = 1; |
3583 | end_block = 1; |
3584 | break; |
3585 | case 1: // SLEEP 0000000000011011 |
3586 | opd->op = OP_SLEEP; |
3587 | end_block = 1; |
3588 | break; |
3589 | case 2: // RTE 0000000000101011 |
3590 | opd->op = OP_RTE; |
3591 | opd->source = BITMASK1(SHR_SP); |
3592 | opd->dest = BITMASK2(SHR_SR, SHR_PC); |
3593 | opd->cycles = 4; |
3594 | next_is_delay = 1; |
3595 | end_block = 1; |
3596 | break; |
3597 | default: |
3598 | goto undefined; |
3599 | } |
3600 | break; |
3601 | case 0x0c: // MOV.B @(R0,Rm),Rn 0000nnnnmmmm1100 |
3602 | case 0x0d: // MOV.W @(R0,Rm),Rn 0000nnnnmmmm1101 |
3603 | case 0x0e: // MOV.L @(R0,Rm),Rn 0000nnnnmmmm1110 |
3604 | opd->source = BITMASK2(GET_Rm(), SHR_R0); |
3605 | opd->dest = BITMASK1(GET_Rn()); |
3606 | break; |
3607 | case 0x0f: // MAC.L @Rm+,@Rn+ 0000nnnnmmmm1111 |
3608 | opd->source = BITMASK5(GET_Rm(), GET_Rn(), SHR_SR, SHR_MACL, SHR_MACH); |
3609 | opd->dest = BITMASK4(GET_Rm(), GET_Rn(), SHR_MACL, SHR_MACH); |
3610 | opd->cycles = 3; |
3611 | break; |
3612 | default: |
3613 | goto undefined; |
3614 | } |
3615 | break; |
3616 | |
3617 | ///////////////////////////////////////////// |
3618 | case 0x01: |
3619 | // MOV.L Rm,@(disp,Rn) 0001nnnnmmmmdddd |
3620 | opd->source = BITMASK1(GET_Rm()); |
3621 | opd->source = BITMASK1(GET_Rn()); |
3622 | opd->imm = (op & 0x0f) * 4; |
3623 | break; |
3624 | |
3625 | ///////////////////////////////////////////// |
3626 | case 0x02: |
3627 | switch (op & 0x0f) |
3628 | { |
3629 | case 0x00: // MOV.B Rm,@Rn 0010nnnnmmmm0000 |
3630 | case 0x01: // MOV.W Rm,@Rn 0010nnnnmmmm0001 |
3631 | case 0x02: // MOV.L Rm,@Rn 0010nnnnmmmm0010 |
3632 | opd->source = BITMASK1(GET_Rm()); |
3633 | opd->source = BITMASK1(GET_Rn()); |
3634 | break; |
f2dde871 |
3635 | case 0x04: // MOV.B Rm,@-Rn 0010nnnnmmmm0100 |
3636 | case 0x05: // MOV.W Rm,@-Rn 0010nnnnmmmm0101 |
3637 | case 0x06: // MOV.L Rm,@-Rn 0010nnnnmmmm0110 |
bf092a36 |
3638 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3639 | opd->dest = BITMASK1(GET_Rn()); |
3640 | break; |
3641 | case 0x07: // DIV0S Rm,Rn 0010nnnnmmmm0111 |
3642 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3643 | opd->dest = BITMASK1(SHR_SR); |
3644 | break; |
3645 | case 0x08: // TST Rm,Rn 0010nnnnmmmm1000 |
3646 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3647 | opd->dest = BITMASK1(SHR_T); |
3648 | break; |
3649 | case 0x09: // AND Rm,Rn 0010nnnnmmmm1001 |
3650 | case 0x0a: // XOR Rm,Rn 0010nnnnmmmm1010 |
3651 | case 0x0b: // OR Rm,Rn 0010nnnnmmmm1011 |
3652 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3653 | opd->dest = BITMASK1(GET_Rn()); |
3654 | break; |
3655 | case 0x0c: // CMP/STR Rm,Rn 0010nnnnmmmm1100 |
3656 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3657 | opd->dest = BITMASK1(SHR_T); |
3658 | break; |
3659 | case 0x0d: // XTRCT Rm,Rn 0010nnnnmmmm1101 |
3660 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3661 | opd->dest = BITMASK1(GET_Rn()); |
3662 | break; |
3663 | case 0x0e: // MULU.W Rm,Rn 0010nnnnmmmm1110 |
3664 | case 0x0f: // MULS.W Rm,Rn 0010nnnnmmmm1111 |
3665 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3666 | opd->dest = BITMASK1(SHR_MACL); |
3667 | break; |
3668 | default: |
3669 | goto undefined; |
3670 | } |
3671 | break; |
3672 | |
3673 | ///////////////////////////////////////////// |
3674 | case 0x03: |
3675 | switch (op & 0x0f) |
3676 | { |
3677 | case 0x00: // CMP/EQ Rm,Rn 0011nnnnmmmm0000 |
3678 | case 0x02: // CMP/HS Rm,Rn 0011nnnnmmmm0010 |
3679 | case 0x03: // CMP/GE Rm,Rn 0011nnnnmmmm0011 |
3680 | case 0x06: // CMP/HI Rm,Rn 0011nnnnmmmm0110 |
3681 | case 0x07: // CMP/GT Rm,Rn 0011nnnnmmmm0111 |
3682 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3683 | opd->dest = BITMASK1(SHR_T); |
3684 | break; |
3685 | case 0x04: // DIV1 Rm,Rn 0011nnnnmmmm0100 |
3686 | opd->source = BITMASK3(GET_Rm(), GET_Rn(), SHR_SR); |
3687 | opd->dest = BITMASK2(GET_Rn(), SHR_SR); |
3688 | break; |
3689 | case 0x05: // DMULU.L Rm,Rn 0011nnnnmmmm0101 |
3690 | case 0x0d: // DMULS.L Rm,Rn 0011nnnnmmmm1101 |
3691 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3692 | opd->dest = BITMASK2(SHR_MACL, SHR_MACH); |
3693 | opd->cycles = 2; |
3694 | break; |
3695 | case 0x08: // SUB Rm,Rn 0011nnnnmmmm1000 |
3696 | case 0x0c: // ADD Rm,Rn 0011nnnnmmmm1100 |
3697 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3698 | opd->dest = BITMASK1(GET_Rn()); |
3699 | break; |
3700 | case 0x0a: // SUBC Rm,Rn 0011nnnnmmmm1010 |
3701 | case 0x0e: // ADDC Rm,Rn 0011nnnnmmmm1110 |
3702 | opd->source = BITMASK3(GET_Rm(), GET_Rn(), SHR_T); |
3703 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3704 | break; |
3705 | case 0x0b: // SUBV Rm,Rn 0011nnnnmmmm1011 |
3706 | case 0x0f: // ADDV Rm,Rn 0011nnnnmmmm1111 |
3707 | opd->source = BITMASK2(GET_Rm(), GET_Rn()); |
3708 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3709 | break; |
3710 | default: |
3711 | goto undefined; |
3712 | } |
3713 | break; |
3714 | |
3715 | ///////////////////////////////////////////// |
3716 | case 0x04: |
3717 | switch (op & 0x0f) |
3718 | { |
3719 | case 0x00: |
3720 | switch (GET_Fx()) |
3721 | { |
3722 | case 0: // SHLL Rn 0100nnnn00000000 |
3723 | case 2: // SHAL Rn 0100nnnn00100000 |
3724 | opd->source = BITMASK1(GET_Rn()); |
3725 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3726 | break; |
3727 | case 1: // DT Rn 0100nnnn00010000 |
3728 | opd->source = BITMASK1(GET_Rn()); |
3729 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3730 | break; |
3731 | default: |
3732 | goto undefined; |
3733 | } |
3734 | break; |
3735 | case 0x01: |
3736 | switch (GET_Fx()) |
3737 | { |
3738 | case 0: // SHLR Rn 0100nnnn00000001 |
3739 | case 2: // SHAR Rn 0100nnnn00100001 |
3740 | opd->source = BITMASK1(GET_Rn()); |
3741 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3742 | break; |
3743 | case 1: // CMP/PZ Rn 0100nnnn00010001 |
3744 | opd->source = BITMASK1(GET_Rn()); |
3745 | opd->dest = BITMASK1(SHR_T); |
3746 | break; |
3747 | default: |
3748 | goto undefined; |
3749 | } |
3750 | break; |
3751 | case 0x02: |
3752 | case 0x03: |
3753 | switch (op & 0x3f) |
3754 | { |
f2dde871 |
3755 | case 0x02: // STS.L MACH,@-Rn 0100nnnn00000010 |
bf092a36 |
3756 | tmp = SHR_MACH; |
3757 | break; |
f2dde871 |
3758 | case 0x12: // STS.L MACL,@-Rn 0100nnnn00010010 |
bf092a36 |
3759 | tmp = SHR_MACL; |
3760 | break; |
f2dde871 |
3761 | case 0x22: // STS.L PR,@-Rn 0100nnnn00100010 |
bf092a36 |
3762 | tmp = SHR_PR; |
3763 | break; |
f2dde871 |
3764 | case 0x03: // STC.L SR,@-Rn 0100nnnn00000011 |
bf092a36 |
3765 | tmp = SHR_SR; |
3766 | opd->cycles = 2; |
3767 | break; |
f2dde871 |
3768 | case 0x13: // STC.L GBR,@-Rn 0100nnnn00010011 |
bf092a36 |
3769 | tmp = SHR_GBR; |
3770 | opd->cycles = 2; |
3771 | break; |
f2dde871 |
3772 | case 0x23: // STC.L VBR,@-Rn 0100nnnn00100011 |
bf092a36 |
3773 | tmp = SHR_VBR; |
3774 | opd->cycles = 2; |
3775 | break; |
3776 | default: |
3777 | goto undefined; |
3778 | } |
3779 | opd->source = BITMASK2(GET_Rn(), tmp); |
3780 | opd->dest = BITMASK1(GET_Rn()); |
3781 | break; |
3782 | case 0x04: |
3783 | case 0x05: |
3784 | switch (op & 0x3f) |
3785 | { |
3786 | case 0x04: // ROTL Rn 0100nnnn00000100 |
3787 | case 0x05: // ROTR Rn 0100nnnn00000101 |
3788 | opd->source = BITMASK1(GET_Rn()); |
3789 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3790 | break; |
3791 | case 0x24: // ROTCL Rn 0100nnnn00100100 |
3792 | case 0x25: // ROTCR Rn 0100nnnn00100101 |
3793 | opd->source = BITMASK2(GET_Rn(), SHR_T); |
3794 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3795 | break; |
3796 | case 0x15: // CMP/PL Rn 0100nnnn00010101 |
3797 | opd->source = BITMASK1(GET_Rn()); |
3798 | opd->dest = BITMASK1(SHR_T); |
3799 | break; |
3800 | default: |
3801 | goto undefined; |
3802 | } |
3803 | break; |
3804 | case 0x06: |
3805 | case 0x07: |
3806 | switch (op & 0x3f) |
3807 | { |
3808 | case 0x06: // LDS.L @Rm+,MACH 0100mmmm00000110 |
3809 | tmp = SHR_MACH; |
3810 | break; |
3811 | case 0x16: // LDS.L @Rm+,MACL 0100mmmm00010110 |
3812 | tmp = SHR_MACL; |
3813 | break; |
3814 | case 0x26: // LDS.L @Rm+,PR 0100mmmm00100110 |
3815 | tmp = SHR_PR; |
3816 | break; |
3817 | case 0x07: // LDC.L @Rm+,SR 0100mmmm00000111 |
3818 | tmp = SHR_SR; |
3819 | opd->cycles = 3; |
3820 | break; |
3821 | case 0x17: // LDC.L @Rm+,GBR 0100mmmm00010111 |
3822 | tmp = SHR_GBR; |
3823 | opd->cycles = 3; |
3824 | break; |
3825 | case 0x27: // LDC.L @Rm+,VBR 0100mmmm00100111 |
3826 | tmp = SHR_VBR; |
3827 | opd->cycles = 3; |
3828 | break; |
3829 | default: |
3830 | goto undefined; |
3831 | } |
3832 | opd->source = BITMASK1(GET_Rn()); |
3833 | opd->dest = BITMASK2(GET_Rn(), tmp); |
3834 | break; |
3835 | case 0x08: |
3836 | case 0x09: |
3837 | switch (GET_Fx()) |
3838 | { |
3839 | case 0: |
3840 | // SHLL2 Rn 0100nnnn00001000 |
3841 | // SHLR2 Rn 0100nnnn00001001 |
3842 | break; |
3843 | case 1: |
3844 | // SHLL8 Rn 0100nnnn00011000 |
3845 | // SHLR8 Rn 0100nnnn00011001 |
3846 | break; |
3847 | case 2: |
3848 | // SHLL16 Rn 0100nnnn00101000 |
3849 | // SHLR16 Rn 0100nnnn00101001 |
3850 | break; |
3851 | default: |
3852 | goto undefined; |
3853 | } |
3854 | opd->source = BITMASK1(GET_Rn()); |
3855 | opd->dest = BITMASK1(GET_Rn()); |
3856 | break; |
3857 | case 0x0a: |
3858 | switch (GET_Fx()) |
3859 | { |
3860 | case 0: // LDS Rm,MACH 0100mmmm00001010 |
3861 | tmp = SHR_MACH; |
3862 | break; |
3863 | case 1: // LDS Rm,MACL 0100mmmm00011010 |
3864 | tmp = SHR_MACL; |
3865 | break; |
3866 | case 2: // LDS Rm,PR 0100mmmm00101010 |
3867 | tmp = SHR_PR; |
3868 | break; |
3869 | default: |
3870 | goto undefined; |
3871 | } |
3872 | opd->op = OP_MOVE; |
3873 | opd->source = BITMASK1(GET_Rn()); |
3874 | opd->dest = BITMASK1(tmp); |
3875 | break; |
3876 | case 0x0b: |
3877 | switch (GET_Fx()) |
3878 | { |
3879 | case 0: // JSR @Rm 0100mmmm00001011 |
3880 | opd->dest = BITMASK1(SHR_PR); |
3881 | case 2: // JMP @Rm 0100mmmm00101011 |
3882 | opd->op = OP_BRANCH_R; |
3883 | opd->rm = GET_Rn(); |
3884 | opd->source = BITMASK1(opd->rm); |
3885 | opd->dest |= BITMASK1(SHR_PC); |
3886 | opd->cycles = 2; |
3887 | next_is_delay = 1; |
3888 | end_block = 1; |
3889 | break; |
3890 | case 1: // TAS.B @Rn 0100nnnn00011011 |
3891 | opd->source = BITMASK1(GET_Rn()); |
3892 | opd->dest = BITMASK1(SHR_T); |
3893 | opd->cycles = 4; |
3894 | break; |
3895 | default: |
3896 | goto undefined; |
3897 | } |
3898 | break; |
3899 | case 0x0e: |
3900 | switch (GET_Fx()) |
3901 | { |
3902 | case 0: // LDC Rm,SR 0100mmmm00001110 |
3903 | tmp = SHR_SR; |
3904 | break; |
3905 | case 1: // LDC Rm,GBR 0100mmmm00011110 |
3906 | tmp = SHR_GBR; |
3907 | break; |
3908 | case 2: // LDC Rm,VBR 0100mmmm00101110 |
3909 | tmp = SHR_VBR; |
3910 | break; |
3911 | default: |
3912 | goto undefined; |
3913 | } |
3914 | opd->op = OP_MOVE; |
3915 | opd->source = BITMASK1(GET_Rn()); |
3916 | opd->dest = BITMASK1(tmp); |
3917 | break; |
3918 | case 0x0f: |
3919 | // MAC.W @Rm+,@Rn+ 0100nnnnmmmm1111 |
3920 | opd->source = BITMASK5(GET_Rm(), GET_Rn(), SHR_SR, SHR_MACL, SHR_MACH); |
3921 | opd->dest = BITMASK4(GET_Rm(), GET_Rn(), SHR_MACL, SHR_MACH); |
3922 | opd->cycles = 3; |
3923 | break; |
3924 | default: |
3925 | goto undefined; |
3926 | } |
3927 | break; |
3928 | |
3929 | ///////////////////////////////////////////// |
3930 | case 0x05: |
3931 | // MOV.L @(disp,Rm),Rn 0101nnnnmmmmdddd |
3932 | opd->source = BITMASK1(GET_Rm()); |
3933 | opd->dest = BITMASK1(GET_Rn()); |
3934 | opd->imm = (op & 0x0f) * 4; |
3935 | break; |
3936 | |
3937 | ///////////////////////////////////////////// |
3938 | case 0x06: |
3939 | switch (op & 0x0f) |
3940 | { |
3941 | case 0x04: // MOV.B @Rm+,Rn 0110nnnnmmmm0100 |
3942 | case 0x05: // MOV.W @Rm+,Rn 0110nnnnmmmm0101 |
3943 | case 0x06: // MOV.L @Rm+,Rn 0110nnnnmmmm0110 |
3944 | opd->dest = BITMASK1(GET_Rm()); |
3945 | case 0x00: // MOV.B @Rm,Rn 0110nnnnmmmm0000 |
3946 | case 0x01: // MOV.W @Rm,Rn 0110nnnnmmmm0001 |
3947 | case 0x02: // MOV.L @Rm,Rn 0110nnnnmmmm0010 |
3948 | opd->source = BITMASK1(GET_Rm()); |
3949 | opd->dest |= BITMASK1(GET_Rn()); |
3950 | break; |
fa841b44 |
3951 | case 0x0a: // NEGC Rm,Rn 0110nnnnmmmm1010 |
3952 | opd->source = BITMASK2(GET_Rm(), SHR_T); |
3953 | opd->dest = BITMASK2(GET_Rn(), SHR_T); |
3954 | break; |
bf092a36 |
3955 | case 0x03: // MOV Rm,Rn 0110nnnnmmmm0011 |
3956 | opd->op = OP_MOVE; |
3957 | goto arith_rmrn; |
3958 | case 0x07: // NOT Rm,Rn 0110nnnnmmmm0111 |
3959 | case 0x08: // SWAP.B Rm,Rn 0110nnnnmmmm1000 |
3960 | case 0x09: // SWAP.W Rm,Rn 0110nnnnmmmm1001 |
bf092a36 |
3961 | case 0x0b: // NEG Rm,Rn 0110nnnnmmmm1011 |
3962 | case 0x0c: // EXTU.B Rm,Rn 0110nnnnmmmm1100 |
3963 | case 0x0d: // EXTU.W Rm,Rn 0110nnnnmmmm1101 |
3964 | case 0x0e: // EXTS.B Rm,Rn 0110nnnnmmmm1110 |
3965 | case 0x0f: // EXTS.W Rm,Rn 0110nnnnmmmm1111 |
3966 | arith_rmrn: |
3967 | opd->source = BITMASK1(GET_Rm()); |
3968 | opd->dest = BITMASK1(GET_Rn()); |
3969 | break; |
3970 | } |
3971 | break; |
3972 | |
3973 | ///////////////////////////////////////////// |
3974 | case 0x07: |
3975 | // ADD #imm,Rn 0111nnnniiiiiiii |
3976 | opd->source = opd->dest = BITMASK1(GET_Rn()); |
3977 | opd->imm = (int)(signed char)op; |
3978 | break; |
3979 | |
3980 | ///////////////////////////////////////////// |
3981 | case 0x08: |
3982 | switch (op & 0x0f00) |
3983 | { |
3984 | case 0x0000: // MOV.B R0,@(disp,Rn) 10000000nnnndddd |
3985 | opd->source = BITMASK2(GET_Rm(), SHR_R0); |
3986 | opd->imm = (op & 0x0f); |
3987 | break; |
3988 | case 0x0100: // MOV.W R0,@(disp,Rn) 10000001nnnndddd |
3989 | opd->source = BITMASK2(GET_Rm(), SHR_R0); |
3990 | opd->imm = (op & 0x0f) * 2; |
3991 | break; |
3992 | case 0x0400: // MOV.B @(disp,Rm),R0 10000100mmmmdddd |
3993 | opd->source = BITMASK1(GET_Rm()); |
3994 | opd->dest = BITMASK1(SHR_R0); |
3995 | opd->imm = (op & 0x0f); |
3996 | break; |
3997 | case 0x0500: // MOV.W @(disp,Rm),R0 10000101mmmmdddd |
3998 | opd->source = BITMASK1(GET_Rm()); |
3999 | opd->dest = BITMASK1(SHR_R0); |
4000 | opd->imm = (op & 0x0f) * 2; |
4001 | break; |
4002 | case 0x0800: // CMP/EQ #imm,R0 10001000iiiiiiii |
4003 | opd->source = BITMASK1(SHR_R0); |
4004 | opd->dest = BITMASK1(SHR_T); |
4005 | opd->imm = (int)(signed char)op; |
4006 | break; |
4007 | case 0x0d00: // BT/S label 10001101dddddddd |
4008 | case 0x0f00: // BF/S label 10001111dddddddd |
4009 | next_is_delay = 1; |
4010 | // fallthrough |
4011 | case 0x0900: // BT label 10001001dddddddd |
4012 | case 0x0b00: // BF label 10001011dddddddd |
4013 | opd->op = (op & 0x0200) ? OP_BRANCH_CF : OP_BRANCH_CT; |
4014 | opd->source = BITMASK1(SHR_T); |
4015 | opd->dest = BITMASK1(SHR_PC); |
4016 | opd->imm = ((signed int)(op << 24) >> 23); |
4017 | opd->imm += pc + 4; |
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 | default: |
4022 | goto undefined; |
4023 | } |
4024 | break; |
4025 | |
4026 | ///////////////////////////////////////////// |
4027 | case 0x09: |
4028 | // MOV.W @(disp,PC),Rn 1001nnnndddddddd |
4029 | opd->op = OP_LOAD_POOL; |
fa841b44 |
4030 | tmp = pc + 2; |
4031 | if (op_flags[i] & OF_DELAY_OP) { |
4032 | if (ops[i-1].op == OP_BRANCH) |
4033 | tmp = ops[i-1].imm; |
4034 | else |
4035 | tmp = 0; |
4036 | } |
bf092a36 |
4037 | opd->source = BITMASK1(SHR_PC); |
4038 | opd->dest = BITMASK1(GET_Rn()); |
fa841b44 |
4039 | if (tmp) |
4040 | opd->imm = tmp + 2 + (op & 0xff) * 2; |
bf092a36 |
4041 | opd->size = 1; |
4042 | break; |
4043 | |
4044 | ///////////////////////////////////////////// |
4045 | case 0x0b: |
4046 | // BSR label 1011dddddddddddd |
4047 | opd->dest = BITMASK1(SHR_PR); |
4048 | case 0x0a: |
4049 | // BRA label 1010dddddddddddd |
4050 | opd->op = OP_BRANCH; |
4051 | opd->dest |= BITMASK1(SHR_PC); |
4052 | opd->imm = ((signed int)(op << 20) >> 19); |
4053 | opd->imm += pc + 4; |
4054 | opd->cycles = 2; |
4055 | next_is_delay = 1; |
4056 | end_block = 1; |
4057 | if (base_pc <= opd->imm && opd->imm < base_pc + BLOCK_INSN_LIMIT * 2) |
4058 | op_flags[(opd->imm - base_pc) / 2] |= OF_BTARGET; |
4059 | break; |
4060 | |
4061 | ///////////////////////////////////////////// |
4062 | case 0x0c: |
4063 | switch (op & 0x0f00) |
4064 | { |
4065 | case 0x0000: // MOV.B R0,@(disp,GBR) 11000000dddddddd |
4066 | case 0x0100: // MOV.W R0,@(disp,GBR) 11000001dddddddd |
4067 | case 0x0200: // MOV.L R0,@(disp,GBR) 11000010dddddddd |
4068 | opd->source = BITMASK2(SHR_GBR, SHR_R0); |
4069 | opd->size = (op & 0x300) >> 8; |
4070 | opd->imm = (op & 0xff) << opd->size; |
4071 | break; |
4072 | case 0x0400: // MOV.B @(disp,GBR),R0 11000100dddddddd |
4073 | case 0x0500: // MOV.W @(disp,GBR),R0 11000101dddddddd |
4074 | case 0x0600: // MOV.L @(disp,GBR),R0 11000110dddddddd |
4075 | opd->source = BITMASK1(SHR_GBR); |
4076 | opd->dest = BITMASK1(SHR_R0); |
4077 | opd->size = (op & 0x300) >> 8; |
4078 | opd->imm = (op & 0xff) << opd->size; |
4079 | break; |
4080 | case 0x0300: // TRAPA #imm 11000011iiiiiiii |
4081 | opd->source = BITMASK2(SHR_PC, SHR_SR); |
4082 | opd->dest = BITMASK1(SHR_PC); |
4083 | opd->imm = (op & 0xff) * 4; |
4084 | opd->cycles = 8; |
4085 | end_block = 1; // FIXME |
4086 | break; |
4087 | case 0x0700: // MOVA @(disp,PC),R0 11000111dddddddd |
fa841b44 |
4088 | opd->op = OP_MOVA; |
4089 | tmp = pc + 2; |
4090 | if (op_flags[i] & OF_DELAY_OP) { |
4091 | if (ops[i-1].op == OP_BRANCH) |
4092 | tmp = ops[i-1].imm; |
4093 | else |
4094 | tmp = 0; |
4095 | } |
bf092a36 |
4096 | opd->dest = BITMASK1(SHR_R0); |
ee5f7e99 |
4097 | if (tmp) { |
fa841b44 |
4098 | opd->imm = (tmp + 2 + (op & 0xff) * 4) & ~3; |
ee5f7e99 |
4099 | if (opd->imm >= base_pc) { |
4100 | if (lowest_mova == 0 || opd->imm < lowest_mova) |
4101 | lowest_mova = opd->imm; |
4102 | } |
4103 | } |
bf092a36 |
4104 | break; |
4105 | case 0x0800: // TST #imm,R0 11001000iiiiiiii |
4106 | opd->source = BITMASK1(SHR_R0); |
4107 | opd->dest = BITMASK1(SHR_T); |
4108 | opd->imm = op & 0xff; |
4109 | break; |
4110 | case 0x0900: // AND #imm,R0 11001001iiiiiiii |
4111 | opd->source = opd->dest = BITMASK1(SHR_R0); |
4112 | opd->imm = op & 0xff; |
4113 | break; |
4114 | case 0x0a00: // XOR #imm,R0 11001010iiiiiiii |
4115 | opd->source = opd->dest = BITMASK1(SHR_R0); |
4116 | opd->imm = op & 0xff; |
4117 | break; |
4118 | case 0x0b00: // OR #imm,R0 11001011iiiiiiii |
4119 | opd->source = opd->dest = BITMASK1(SHR_R0); |
4120 | opd->imm = op & 0xff; |
4121 | break; |
4122 | case 0x0c00: // TST.B #imm,@(R0,GBR) 11001100iiiiiiii |
4123 | opd->source = BITMASK2(SHR_GBR, SHR_R0); |
4124 | opd->dest = BITMASK1(SHR_T); |
4125 | opd->imm = op & 0xff; |
4126 | opd->cycles = 3; |
4127 | break; |
4128 | case 0x0d00: // AND.B #imm,@(R0,GBR) 11001101iiiiiiii |
4129 | case 0x0e00: // XOR.B #imm,@(R0,GBR) 11001110iiiiiiii |
4130 | case 0x0f00: // OR.B #imm,@(R0,GBR) 11001111iiiiiiii |
4131 | opd->source = BITMASK2(SHR_GBR, SHR_R0); |
4132 | opd->imm = op & 0xff; |
4133 | opd->cycles = 3; |
4134 | break; |
4135 | default: |
4136 | goto undefined; |
4137 | } |
4138 | break; |
4139 | |
4140 | ///////////////////////////////////////////// |
4141 | case 0x0d: |
4142 | // MOV.L @(disp,PC),Rn 1101nnnndddddddd |
4143 | opd->op = OP_LOAD_POOL; |
fa841b44 |
4144 | tmp = pc + 2; |
4145 | if (op_flags[i] & OF_DELAY_OP) { |
4146 | if (ops[i-1].op == OP_BRANCH) |
4147 | tmp = ops[i-1].imm; |
4148 | else |
4149 | tmp = 0; |
4150 | } |
bf092a36 |
4151 | opd->source = BITMASK1(SHR_PC); |
4152 | opd->dest = BITMASK1(GET_Rn()); |
fa841b44 |
4153 | if (tmp) |
4154 | opd->imm = (tmp + 2 + (op & 0xff) * 4) & ~3; |
bf092a36 |
4155 | opd->size = 2; |
4156 | break; |
4157 | |
4158 | ///////////////////////////////////////////// |
4159 | case 0x0e: |
4160 | // MOV #imm,Rn 1110nnnniiiiiiii |
4161 | opd->dest = BITMASK1(GET_Rn()); |
4162 | opd->imm = (u32)(signed int)(signed char)op; |
4163 | break; |
4164 | |
4165 | default: |
4166 | undefined: |
4167 | elprintf(EL_ANOMALY, "%csh2 drc: unhandled op %04x @ %08x", |
4168 | is_slave ? 's' : 'm', op, pc); |
4169 | break; |
4170 | } |
6a5b1b36 |
4171 | |
4172 | if (op_flags[i] & OF_DELAY_OP) { |
4173 | switch (opd->op) { |
4174 | case OP_BRANCH: |
4175 | case OP_BRANCH_CT: |
4176 | case OP_BRANCH_CF: |
4177 | case OP_BRANCH_R: |
4178 | case OP_BRANCH_RF: |
4179 | elprintf(EL_ANOMALY, "%csh2 drc: branch in DS @ %08x", |
4180 | is_slave ? 's' : 'm', pc); |
4181 | opd->op = OP_UNHANDLED; |
4182 | op_flags[i] |= OF_B_IN_DS; |
4183 | next_is_delay = 0; |
4184 | break; |
4185 | } |
4186 | } |
bf092a36 |
4187 | } |
4188 | i_end = i; |
4189 | end_pc = pc; |
4190 | |
4191 | // 2nd pass: some analysis |
4192 | for (i = 0; i < i_end; i++) { |
4193 | opd = &ops[i]; |
4194 | |
4195 | // propagate T (TODO: DIV0U) |
4196 | if ((opd->op == OP_SETCLRT && !opd->imm) || opd->op == OP_BRANCH_CT) |
4197 | op_flags[i + 1] |= OF_T_CLEAR; |
4198 | else if ((opd->op == OP_SETCLRT && opd->imm) || opd->op == OP_BRANCH_CF) |
4199 | op_flags[i + 1] |= OF_T_SET; |
4200 | |
4201 | if ((op_flags[i] & OF_BTARGET) || (opd->dest & BITMASK1(SHR_T))) |
4202 | op_flags[i] &= ~(OF_T_SET | OF_T_CLEAR); |
4203 | else |
4204 | op_flags[i + 1] |= op_flags[i] & (OF_T_SET | OF_T_CLEAR); |
4205 | |
4206 | if ((opd->op == OP_BRANCH_CT && (op_flags[i] & OF_T_SET)) |
4207 | || (opd->op == OP_BRANCH_CF && (op_flags[i] & OF_T_CLEAR))) |
4208 | { |
4209 | opd->op = OP_BRANCH; |
4210 | opd->cycles = 3; |
4211 | i_end = i + 1; |
4212 | if (op_flags[i + 1] & OF_DELAY_OP) { |
4213 | opd->cycles = 2; |
4214 | i_end++; |
4215 | } |
4216 | } |
4217 | else if (opd->op == OP_LOAD_POOL) |
4218 | { |
4219 | if (opd->imm < end_pc + MAX_LITERAL_OFFSET) { |
4220 | if (end_literals < opd->imm + opd->size * 2) |
4221 | end_literals = opd->imm + opd->size * 2; |
4222 | } |
4223 | } |
4224 | } |
4225 | end_pc = base_pc + i_end * 2; |
4226 | if (end_literals < end_pc) |
4227 | end_literals = end_pc; |
4228 | |
ee5f7e99 |
4229 | // end_literals is used to decide to inline a literal or not |
4230 | // XXX: need better detection if this actually is used in write |
4231 | if (lowest_mova >= base_pc) { |
4232 | if (lowest_mova < end_literals) { |
4233 | dbg(1, "mova for %08x, block %08x", lowest_mova, base_pc); |
4234 | end_literals = end_pc; |
4235 | } |
4236 | if (lowest_mova < end_pc) { |
4237 | dbg(1, "warning: mova inside of blk for %08x, block %08x", |
4238 | lowest_mova, base_pc); |
4239 | end_literals = end_pc; |
4240 | } |
4241 | } |
4242 | |
bf092a36 |
4243 | *end_pc_out = end_pc; |
4244 | if (end_literals_out != NULL) |
4245 | *end_literals_out = end_literals; |
00faec9c |
4246 | } |
4247 | |
5f0ca48f |
4248 | // vim:shiftwidth=2:ts=2:expandtab |