726bbb3e |
1 | // 187 blocks, 12072 bytes |
2 | // 14 IRAM blocks |
3 | |
4 | #include "../../PicoInt.h" |
5 | |
6 | #define TCACHE_SIZE (256*1024) |
892b1dd2 |
7 | static unsigned int *block_table[0x5090/2]; |
8 | static unsigned int *block_table_iram[15][0x800/2]; |
9 | static unsigned int *tcache = NULL; |
10 | static unsigned int *tcache_ptr = NULL; |
726bbb3e |
11 | |
12 | static int had_jump = 0; |
13 | static int nblocks = 0; |
df143b36 |
14 | static int iram_context = 0; |
726bbb3e |
15 | |
16 | #define EMBED_INTERPRETER |
17 | #define ssp1601_reset ssp1601_reset_local |
18 | #define ssp1601_run ssp1601_run_local |
19 | |
20 | static unsigned int interp_get_pc(void); |
21 | |
22 | #define GET_PC interp_get_pc |
23 | #define GET_PPC_OFFS() (interp_get_pc()*2 - 2) |
24 | #define SET_PC(d) { had_jump = 1; rPC = d; } /* must return to dispatcher after this */ |
25 | //#define GET_PC() (PC - (unsigned short *)svp->iram_rom) |
26 | //#define GET_PPC_OFFS() ((unsigned int)PC - (unsigned int)svp->iram_rom - 2) |
27 | //#define SET_PC(d) PC = (unsigned short *)svp->iram_rom + d |
28 | |
29 | #include "ssp16.c" |
30 | |
31 | // ----------------------------------------------------- |
32 | |
892b1dd2 |
33 | // ld d, s |
34 | static void op00(unsigned int op, unsigned int imm) |
35 | { |
36 | unsigned int tmpv; |
37 | if (op == 0) return; // nop |
38 | if (op == ((SSP_A<<4)|SSP_P)) { // A <- P |
39 | // not sure. MAME claims that only hi word is transfered. |
40 | read_P(); // update P |
41 | rA32 = rP.v; |
42 | } |
43 | else |
44 | { |
45 | tmpv = REG_READ(op & 0x0f); |
46 | REG_WRITE((op & 0xf0) >> 4, tmpv); |
47 | } |
48 | } |
49 | |
50 | // ld d, (ri) |
51 | static void op01(unsigned int op, unsigned int imm) |
52 | { |
53 | unsigned int tmpv; |
54 | tmpv = ptr1_read(op); REG_WRITE((op & 0xf0) >> 4, tmpv); |
55 | } |
56 | |
57 | // ld (ri), s |
58 | static void op02(unsigned int op, unsigned int imm) |
59 | { |
60 | unsigned int tmpv; |
61 | tmpv = REG_READ((op & 0xf0) >> 4); ptr1_write(op, tmpv); |
62 | } |
63 | |
64 | // ldi d, imm |
65 | static void op04(unsigned int op, unsigned int imm) |
66 | { |
67 | REG_WRITE((op & 0xf0) >> 4, imm); |
68 | } |
69 | |
70 | // ld d, ((ri)) |
71 | static void op05(unsigned int op, unsigned int imm) |
72 | { |
73 | unsigned int tmpv; |
74 | tmpv = ptr2_read(op); REG_WRITE((op & 0xf0) >> 4, tmpv); |
75 | } |
76 | |
77 | // ldi (ri), imm |
78 | static void op06(unsigned int op, unsigned int imm) |
79 | { |
80 | ptr1_write(op, imm); |
81 | } |
82 | |
83 | // ld adr, a |
84 | static void op07(unsigned int op, unsigned int imm) |
85 | { |
86 | ssp->RAM[op & 0x1ff] = rA; |
87 | } |
88 | |
89 | // ld d, ri |
90 | static void op09(unsigned int op, unsigned int imm) |
91 | { |
92 | unsigned int tmpv; |
93 | tmpv = rIJ[(op&3)|((op>>6)&4)]; REG_WRITE((op & 0xf0) >> 4, tmpv); |
94 | } |
95 | |
96 | // ld ri, s |
97 | static void op0a(unsigned int op, unsigned int imm) |
98 | { |
99 | rIJ[(op&3)|((op>>6)&4)] = REG_READ((op & 0xf0) >> 4); |
100 | } |
101 | |
102 | // ldi ri, simm (also op0d op0e op0f) |
103 | static void op0c(unsigned int op, unsigned int imm) |
104 | { |
105 | rIJ[(op>>8)&7] = op; |
106 | } |
107 | |
108 | // call cond, addr |
109 | static void op24(unsigned int op, unsigned int imm) |
110 | { |
111 | int cond = 0; |
112 | do { |
113 | COND_CHECK |
114 | if (cond) { int new_PC = imm; write_STACK(GET_PC()); write_PC(new_PC); } |
115 | } |
116 | while (0); |
117 | } |
118 | |
119 | // ld d, (a) |
120 | static void op25(unsigned int op, unsigned int imm) |
121 | { |
122 | unsigned int tmpv; |
123 | tmpv = ((unsigned short *)svp->iram_rom)[rA]; REG_WRITE((op & 0xf0) >> 4, tmpv); |
124 | } |
125 | |
126 | // bra cond, addr |
127 | static void op26(unsigned int op, unsigned int imm) |
128 | { |
129 | do |
130 | { |
131 | int cond = 0; |
132 | COND_CHECK |
133 | if (cond) write_PC(imm); |
134 | } |
135 | while(0); |
136 | } |
137 | |
138 | // mod cond, op |
139 | static void op48(unsigned int op, unsigned int imm) |
140 | { |
141 | do |
142 | { |
143 | int cond = 0; |
144 | COND_CHECK |
145 | if (cond) { |
146 | switch (op & 7) { |
147 | case 2: rA32 = (signed int)rA32 >> 1; break; // shr (arithmetic) |
148 | case 3: rA32 <<= 1; break; // shl |
149 | case 6: rA32 = -(signed int)rA32; break; // neg |
150 | case 7: if ((int)rA32 < 0) rA32 = -(signed int)rA32; break; // abs |
151 | default: elprintf(EL_SVP|EL_ANOMALY, "ssp FIXME: unhandled mod %i @ %04x", |
152 | op&7, GET_PPC_OFFS()); |
153 | } |
154 | UPD_ACC_ZN // ? |
155 | } |
156 | } |
157 | while(0); |
158 | } |
159 | |
160 | // mpys? |
161 | static void op1b(unsigned int op, unsigned int imm) |
162 | { |
163 | read_P(); // update P |
164 | rA32 -= rP.v; // maybe only upper word? |
165 | UPD_ACC_ZN // there checking flags after this |
166 | rX = ptr1_read_(op&3, 0, (op<<1)&0x18); // ri (maybe rj?) |
167 | rY = ptr1_read_((op>>4)&3, 4, (op>>3)&0x18); // rj |
168 | } |
169 | |
170 | // mpya (rj), (ri), b |
171 | static void op4b(unsigned int op, unsigned int imm) |
172 | { |
173 | read_P(); // update P |
174 | rA32 += rP.v; // confirmed to be 32bit |
175 | UPD_ACC_ZN // ? |
176 | rX = ptr1_read_(op&3, 0, (op<<1)&0x18); // ri (maybe rj?) |
177 | rY = ptr1_read_((op>>4)&3, 4, (op>>3)&0x18); // rj |
178 | } |
179 | |
180 | // mld (rj), (ri), b |
181 | static void op5b(unsigned int op, unsigned int imm) |
182 | { |
183 | rA32 = 0; |
184 | rST &= 0x0fff; // ? |
185 | rX = ptr1_read_(op&3, 0, (op<<1)&0x18); // ri (maybe rj?) |
186 | rY = ptr1_read_((op>>4)&3, 4, (op>>3)&0x18); // rj |
187 | } |
188 | |
189 | // OP a, s |
190 | static void op10(unsigned int op, unsigned int imm) |
191 | { |
192 | do |
193 | { |
194 | unsigned int tmpv; |
195 | OP_CHECK32(OP_SUBA32); tmpv = REG_READ(op & 0x0f); OP_SUBA(tmpv); |
196 | } |
197 | while(0); |
198 | } |
199 | |
200 | static void op30(unsigned int op, unsigned int imm) |
201 | { |
202 | do |
203 | { |
204 | unsigned int tmpv; |
205 | OP_CHECK32(OP_CMPA32); tmpv = REG_READ(op & 0x0f); OP_CMPA(tmpv); |
206 | } |
207 | while(0); |
208 | } |
209 | |
210 | static void op40(unsigned int op, unsigned int imm) |
211 | { |
212 | do |
213 | { |
214 | unsigned int tmpv; |
215 | OP_CHECK32(OP_ADDA32); tmpv = REG_READ(op & 0x0f); OP_ADDA(tmpv); |
216 | } |
217 | while(0); |
218 | } |
219 | |
220 | static void op50(unsigned int op, unsigned int imm) |
221 | { |
222 | do |
223 | { |
224 | unsigned int tmpv; |
225 | OP_CHECK32(OP_ANDA32); tmpv = REG_READ(op & 0x0f); OP_ANDA(tmpv); |
226 | } |
227 | while(0); |
228 | } |
229 | |
230 | static void op60(unsigned int op, unsigned int imm) |
231 | { |
232 | do |
233 | { |
234 | unsigned int tmpv; |
235 | OP_CHECK32(OP_ORA32 ); tmpv = REG_READ(op & 0x0f); OP_ORA (tmpv); |
236 | } |
237 | while(0); |
238 | } |
239 | |
240 | static void op70(unsigned int op, unsigned int imm) |
241 | { |
242 | do |
243 | { |
244 | unsigned int tmpv; |
245 | OP_CHECK32(OP_EORA32); tmpv = REG_READ(op & 0x0f); OP_EORA(tmpv); |
246 | } |
247 | while(0); |
248 | } |
249 | |
250 | // OP a, (ri) |
251 | static void op11(unsigned int op, unsigned int imm) |
252 | { |
253 | unsigned int tmpv; |
254 | tmpv = ptr1_read(op); OP_SUBA(tmpv); |
255 | } |
256 | |
257 | static void op31(unsigned int op, unsigned int imm) |
258 | { |
259 | unsigned int tmpv; |
260 | tmpv = ptr1_read(op); OP_CMPA(tmpv); |
261 | } |
262 | |
263 | static void op41(unsigned int op, unsigned int imm) |
264 | { |
265 | unsigned int tmpv; |
266 | tmpv = ptr1_read(op); OP_ADDA(tmpv); |
267 | } |
268 | |
269 | static void op51(unsigned int op, unsigned int imm) |
270 | { |
271 | unsigned int tmpv; |
272 | tmpv = ptr1_read(op); OP_ANDA(tmpv); |
273 | } |
274 | |
275 | static void op61(unsigned int op, unsigned int imm) |
276 | { |
277 | unsigned int tmpv; |
278 | tmpv = ptr1_read(op); OP_ORA (tmpv); |
279 | } |
280 | |
281 | static void op71(unsigned int op, unsigned int imm) |
282 | { |
283 | unsigned int tmpv; |
284 | tmpv = ptr1_read(op); OP_EORA(tmpv); |
285 | } |
286 | |
287 | // OP a, adr |
288 | static void op03(unsigned int op, unsigned int imm) |
289 | { |
290 | unsigned int tmpv; |
291 | tmpv = ssp->RAM[op & 0x1ff]; OP_LDA (tmpv); |
292 | } |
293 | |
294 | static void op13(unsigned int op, unsigned int imm) |
295 | { |
296 | unsigned int tmpv; |
297 | tmpv = ssp->RAM[op & 0x1ff]; OP_SUBA(tmpv); |
298 | } |
299 | |
300 | static void op33(unsigned int op, unsigned int imm) |
301 | { |
302 | unsigned int tmpv; |
303 | tmpv = ssp->RAM[op & 0x1ff]; OP_CMPA(tmpv); |
304 | } |
305 | |
306 | static void op43(unsigned int op, unsigned int imm) |
307 | { |
308 | unsigned int tmpv; |
309 | tmpv = ssp->RAM[op & 0x1ff]; OP_ADDA(tmpv); |
310 | } |
311 | |
312 | static void op53(unsigned int op, unsigned int imm) |
313 | { |
314 | unsigned int tmpv; |
315 | tmpv = ssp->RAM[op & 0x1ff]; OP_ANDA(tmpv); |
316 | } |
317 | |
318 | static void op63(unsigned int op, unsigned int imm) |
319 | { |
320 | unsigned int tmpv; |
321 | tmpv = ssp->RAM[op & 0x1ff]; OP_ORA (tmpv); |
322 | } |
323 | |
324 | static void op73(unsigned int op, unsigned int imm) |
325 | { |
326 | unsigned int tmpv; |
327 | tmpv = ssp->RAM[op & 0x1ff]; OP_EORA(tmpv); |
328 | } |
329 | |
330 | // OP a, imm |
331 | static void op14(unsigned int op, unsigned int imm) |
332 | { |
333 | OP_SUBA(imm); |
334 | } |
335 | |
336 | static void op34(unsigned int op, unsigned int imm) |
337 | { |
338 | OP_CMPA(imm); |
339 | } |
340 | |
341 | static void op44(unsigned int op, unsigned int imm) |
342 | { |
343 | OP_ADDA(imm); |
344 | } |
345 | |
346 | static void op54(unsigned int op, unsigned int imm) |
347 | { |
348 | OP_ANDA(imm); |
349 | } |
350 | |
351 | static void op64(unsigned int op, unsigned int imm) |
352 | { |
353 | OP_ORA (imm); |
354 | } |
355 | |
356 | static void op74(unsigned int op, unsigned int imm) |
357 | { |
358 | OP_EORA(imm); |
359 | } |
360 | |
361 | // OP a, ((ri)) |
362 | static void op15(unsigned int op, unsigned int imm) |
363 | { |
364 | unsigned int tmpv; |
365 | tmpv = ptr2_read(op); OP_SUBA(tmpv); |
366 | } |
367 | |
368 | static void op35(unsigned int op, unsigned int imm) |
369 | { |
370 | unsigned int tmpv; |
371 | tmpv = ptr2_read(op); OP_CMPA(tmpv); |
372 | } |
373 | |
374 | static void op45(unsigned int op, unsigned int imm) |
375 | { |
376 | unsigned int tmpv; |
377 | tmpv = ptr2_read(op); OP_ADDA(tmpv); |
378 | } |
379 | |
380 | static void op55(unsigned int op, unsigned int imm) |
381 | { |
382 | unsigned int tmpv; |
383 | tmpv = ptr2_read(op); OP_ANDA(tmpv); |
384 | } |
385 | |
386 | static void op65(unsigned int op, unsigned int imm) |
387 | { |
388 | unsigned int tmpv; |
389 | tmpv = ptr2_read(op); OP_ORA (tmpv); |
390 | } |
391 | |
392 | static void op75(unsigned int op, unsigned int imm) |
393 | { |
394 | unsigned int tmpv; |
395 | tmpv = ptr2_read(op); OP_EORA(tmpv); |
396 | } |
397 | |
398 | // OP a, ri |
399 | static void op19(unsigned int op, unsigned int imm) |
400 | { |
401 | unsigned int tmpv; |
402 | tmpv = rIJ[IJind]; OP_SUBA(tmpv); |
403 | } |
404 | |
405 | static void op39(unsigned int op, unsigned int imm) |
406 | { |
407 | unsigned int tmpv; |
408 | tmpv = rIJ[IJind]; OP_CMPA(tmpv); |
409 | } |
410 | |
411 | static void op49(unsigned int op, unsigned int imm) |
412 | { |
413 | unsigned int tmpv; |
414 | tmpv = rIJ[IJind]; OP_ADDA(tmpv); |
415 | } |
416 | |
417 | static void op59(unsigned int op, unsigned int imm) |
418 | { |
419 | unsigned int tmpv; |
420 | tmpv = rIJ[IJind]; OP_ANDA(tmpv); |
421 | } |
422 | |
423 | static void op69(unsigned int op, unsigned int imm) |
424 | { |
425 | unsigned int tmpv; |
426 | tmpv = rIJ[IJind]; OP_ORA (tmpv); |
427 | } |
428 | |
429 | static void op79(unsigned int op, unsigned int imm) |
430 | { |
431 | unsigned int tmpv; |
432 | tmpv = rIJ[IJind]; OP_EORA(tmpv); |
433 | } |
434 | |
435 | // OP simm |
436 | static void op1c(unsigned int op, unsigned int imm) |
437 | { |
438 | OP_SUBA(op & 0xff); |
439 | } |
440 | |
441 | static void op3c(unsigned int op, unsigned int imm) |
442 | { |
443 | OP_CMPA(op & 0xff); |
444 | } |
445 | |
446 | static void op4c(unsigned int op, unsigned int imm) |
447 | { |
448 | OP_ADDA(op & 0xff); |
449 | } |
450 | |
451 | static void op5c(unsigned int op, unsigned int imm) |
452 | { |
453 | OP_ANDA(op & 0xff); |
454 | } |
455 | |
456 | static void op6c(unsigned int op, unsigned int imm) |
457 | { |
458 | OP_ORA (op & 0xff); |
459 | } |
460 | |
461 | static void op7c(unsigned int op, unsigned int imm) |
462 | { |
463 | OP_EORA(op & 0xff); |
464 | } |
465 | |
466 | typedef void (in_func)(unsigned int op, unsigned int imm); |
467 | |
468 | static in_func *in_funcs[0x80] = |
469 | { |
470 | op00, op01, op02, op03, op04, op05, op06, op07, |
471 | NULL, op09, op0a, NULL, op0c, op0c, op0c, op0c, |
472 | op10, op11, NULL, op13, op14, op15, NULL, NULL, |
473 | NULL, op19, NULL, op1b, op1c, NULL, NULL, NULL, |
474 | NULL, NULL, NULL, NULL, op24, op25, op26, NULL, |
475 | NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
476 | op30, op31, NULL, op33, op34, op35, NULL, NULL, |
477 | NULL, op39, NULL, NULL, op3c, NULL, NULL, NULL, |
478 | op40, op41, NULL, op43, op44, op45, NULL, NULL, |
479 | op48, op49, NULL, op4b, op4c, NULL, NULL, NULL, |
480 | op50, op51, NULL, op53, op54, op55, NULL, NULL, |
481 | NULL, op59, NULL, op5b, op5c, NULL, NULL, NULL, |
482 | op60, op61, NULL, op63, op64, op65, NULL, NULL, |
483 | NULL, op69, NULL, NULL, op6c, NULL, NULL, NULL, |
484 | op70, op71, NULL, op73, op74, op75, NULL, NULL, |
485 | NULL, op79, NULL, NULL, op7c, NULL, NULL, NULL, |
486 | }; |
487 | |
488 | // ----------------------------------------------------- |
489 | |
726bbb3e |
490 | static unsigned int crctable[256] = |
491 | { |
492 | 0x00000000L, 0x77073096L, 0xEE0E612CL, 0x990951BAL, |
493 | 0x076DC419L, 0x706AF48FL, 0xE963A535L, 0x9E6495A3L, |
494 | 0x0EDB8832L, 0x79DCB8A4L, 0xE0D5E91EL, 0x97D2D988L, |
495 | 0x09B64C2BL, 0x7EB17CBDL, 0xE7B82D07L, 0x90BF1D91L, |
496 | 0x1DB71064L, 0x6AB020F2L, 0xF3B97148L, 0x84BE41DEL, |
497 | 0x1ADAD47DL, 0x6DDDE4EBL, 0xF4D4B551L, 0x83D385C7L, |
498 | 0x136C9856L, 0x646BA8C0L, 0xFD62F97AL, 0x8A65C9ECL, |
499 | 0x14015C4FL, 0x63066CD9L, 0xFA0F3D63L, 0x8D080DF5L, |
500 | 0x3B6E20C8L, 0x4C69105EL, 0xD56041E4L, 0xA2677172L, |
501 | 0x3C03E4D1L, 0x4B04D447L, 0xD20D85FDL, 0xA50AB56BL, |
502 | 0x35B5A8FAL, 0x42B2986CL, 0xDBBBC9D6L, 0xACBCF940L, |
503 | 0x32D86CE3L, 0x45DF5C75L, 0xDCD60DCFL, 0xABD13D59L, |
504 | 0x26D930ACL, 0x51DE003AL, 0xC8D75180L, 0xBFD06116L, |
505 | 0x21B4F4B5L, 0x56B3C423L, 0xCFBA9599L, 0xB8BDA50FL, |
506 | 0x2802B89EL, 0x5F058808L, 0xC60CD9B2L, 0xB10BE924L, |
507 | 0x2F6F7C87L, 0x58684C11L, 0xC1611DABL, 0xB6662D3DL, |
508 | 0x76DC4190L, 0x01DB7106L, 0x98D220BCL, 0xEFD5102AL, |
509 | 0x71B18589L, 0x06B6B51FL, 0x9FBFE4A5L, 0xE8B8D433L, |
510 | 0x7807C9A2L, 0x0F00F934L, 0x9609A88EL, 0xE10E9818L, |
511 | 0x7F6A0DBBL, 0x086D3D2DL, 0x91646C97L, 0xE6635C01L, |
512 | 0x6B6B51F4L, 0x1C6C6162L, 0x856530D8L, 0xF262004EL, |
513 | 0x6C0695EDL, 0x1B01A57BL, 0x8208F4C1L, 0xF50FC457L, |
514 | 0x65B0D9C6L, 0x12B7E950L, 0x8BBEB8EAL, 0xFCB9887CL, |
515 | 0x62DD1DDFL, 0x15DA2D49L, 0x8CD37CF3L, 0xFBD44C65L, |
516 | 0x4DB26158L, 0x3AB551CEL, 0xA3BC0074L, 0xD4BB30E2L, |
517 | 0x4ADFA541L, 0x3DD895D7L, 0xA4D1C46DL, 0xD3D6F4FBL, |
518 | 0x4369E96AL, 0x346ED9FCL, 0xAD678846L, 0xDA60B8D0L, |
519 | 0x44042D73L, 0x33031DE5L, 0xAA0A4C5FL, 0xDD0D7CC9L, |
520 | 0x5005713CL, 0x270241AAL, 0xBE0B1010L, 0xC90C2086L, |
521 | 0x5768B525L, 0x206F85B3L, 0xB966D409L, 0xCE61E49FL, |
522 | 0x5EDEF90EL, 0x29D9C998L, 0xB0D09822L, 0xC7D7A8B4L, |
523 | 0x59B33D17L, 0x2EB40D81L, 0xB7BD5C3BL, 0xC0BA6CADL, |
524 | 0xEDB88320L, 0x9ABFB3B6L, 0x03B6E20CL, 0x74B1D29AL, |
525 | 0xEAD54739L, 0x9DD277AFL, 0x04DB2615L, 0x73DC1683L, |
526 | 0xE3630B12L, 0x94643B84L, 0x0D6D6A3EL, 0x7A6A5AA8L, |
527 | 0xE40ECF0BL, 0x9309FF9DL, 0x0A00AE27L, 0x7D079EB1L, |
528 | 0xF00F9344L, 0x8708A3D2L, 0x1E01F268L, 0x6906C2FEL, |
529 | 0xF762575DL, 0x806567CBL, 0x196C3671L, 0x6E6B06E7L, |
530 | 0xFED41B76L, 0x89D32BE0L, 0x10DA7A5AL, 0x67DD4ACCL, |
531 | 0xF9B9DF6FL, 0x8EBEEFF9L, 0x17B7BE43L, 0x60B08ED5L, |
532 | 0xD6D6A3E8L, 0xA1D1937EL, 0x38D8C2C4L, 0x4FDFF252L, |
533 | 0xD1BB67F1L, 0xA6BC5767L, 0x3FB506DDL, 0x48B2364BL, |
534 | 0xD80D2BDAL, 0xAF0A1B4CL, 0x36034AF6L, 0x41047A60L, |
535 | 0xDF60EFC3L, 0xA867DF55L, 0x316E8EEFL, 0x4669BE79L, |
536 | 0xCB61B38CL, 0xBC66831AL, 0x256FD2A0L, 0x5268E236L, |
537 | 0xCC0C7795L, 0xBB0B4703L, 0x220216B9L, 0x5505262FL, |
538 | 0xC5BA3BBEL, 0xB2BD0B28L, 0x2BB45A92L, 0x5CB36A04L, |
539 | 0xC2D7FFA7L, 0xB5D0CF31L, 0x2CD99E8BL, 0x5BDEAE1DL, |
540 | 0x9B64C2B0L, 0xEC63F226L, 0x756AA39CL, 0x026D930AL, |
541 | 0x9C0906A9L, 0xEB0E363FL, 0x72076785L, 0x05005713L, |
542 | 0x95BF4A82L, 0xE2B87A14L, 0x7BB12BAEL, 0x0CB61B38L, |
543 | 0x92D28E9BL, 0xE5D5BE0DL, 0x7CDCEFB7L, 0x0BDBDF21L, |
544 | 0x86D3D2D4L, 0xF1D4E242L, 0x68DDB3F8L, 0x1FDA836EL, |
545 | 0x81BE16CDL, 0xF6B9265BL, 0x6FB077E1L, 0x18B74777L, |
546 | 0x88085AE6L, 0xFF0F6A70L, 0x66063BCAL, 0x11010B5CL, |
547 | 0x8F659EFFL, 0xF862AE69L, 0x616BFFD3L, 0x166CCF45L, |
548 | 0xA00AE278L, 0xD70DD2EEL, 0x4E048354L, 0x3903B3C2L, |
549 | 0xA7672661L, 0xD06016F7L, 0x4969474DL, 0x3E6E77DBL, |
550 | 0xAED16A4AL, 0xD9D65ADCL, 0x40DF0B66L, 0x37D83BF0L, |
551 | 0xA9BCAE53L, 0xDEBB9EC5L, 0x47B2CF7FL, 0x30B5FFE9L, |
552 | 0xBDBDF21CL, 0xCABAC28AL, 0x53B39330L, 0x24B4A3A6L, |
553 | 0xBAD03605L, 0xCDD70693L, 0x54DE5729L, 0x23D967BFL, |
554 | 0xB3667A2EL, 0xC4614AB8L, 0x5D681B02L, 0x2A6F2B94L, |
555 | 0xB40BBE37L, 0xC30C8EA1L, 0x5A05DF1BL, 0x2D02EF8DL |
556 | }; |
557 | |
558 | static u32 chksum_crc32 (unsigned char *block, unsigned int length) |
559 | { |
560 | register u32 crc; |
561 | unsigned long i; |
562 | |
563 | crc = 0xFFFFFFFF; |
564 | for (i = 0; i < length; i++) |
565 | { |
566 | crc = ((crc >> 8) & 0x00FFFFFF) ^ crctable[(crc ^ *block++) & 0xFF]; |
567 | } |
568 | return (crc ^ 0xFFFFFFFF); |
569 | } |
570 | |
df143b36 |
571 | //static int iram_crcs[32] = { 0, }; |
726bbb3e |
572 | |
573 | // ----------------------------------------------------- |
574 | |
df143b36 |
575 | static unsigned char iram_context_map[] = |
576 | { |
577 | 0, 0, 0, 0, 1, 0, 0, 0, // 04 |
578 | 0, 0, 0, 0, 0, 0, 2, 0, // 0e |
579 | 0, 0, 0, 0, 0, 3, 0, 4, // 15 17 |
580 | 5, 0, 0, 6, 0, 7, 0, 0, // 18 1b 1d |
581 | 8, 9, 0, 0, 0,10, 0, 0, // 20 21 25 |
582 | 0, 0, 0, 0, 0, 0, 0, 0, |
583 | 0, 0,11, 0, 0,12, 0, 0, // 32 35 |
584 | 13,14, 0, 0, 0, 0, 0, 0 // 38 39 |
585 | }; |
586 | |
587 | static unsigned int checksums[] = |
588 | { |
589 | 0, |
590 | 0xfa9ddfb2, |
591 | 0x229c80b6, |
592 | 0x3af0c3d3, |
593 | 0x98fc4552, |
594 | 0x5ecacdbc, |
595 | 0xa6931962, |
596 | 0x53930b10, |
597 | 0x69524552, |
598 | 0xcb1ccdaf, |
599 | 0x995068c7, |
600 | 0x48b97f4d, |
601 | 0xe8c61b74, |
602 | 0xafa2e81a, |
603 | 0x4e3e071a |
604 | }; |
605 | |
606 | |
607 | static int get_iram_context(void) |
608 | { |
609 | unsigned char *ir = (unsigned char *)svp->iram_rom; |
610 | int val1, val = ir[0x083^1] + ir[0x4FA^1] + ir[0x5F7^1] + ir[0x47B^1]; |
611 | int crc = chksum_crc32(svp->iram_rom, 0x800); |
612 | val1 = iram_context_map[(val>>1)&0x3f]; |
613 | |
892b1dd2 |
614 | if (crc != checksums[val1] || val1 == 0) { |
df143b36 |
615 | printf("val: %02x PC=%04x\n", (val>>1)&0x3f, rPC); |
616 | elprintf(EL_ANOMALY, "bad crc: %08x vs %08x", crc, checksums[val1]); |
617 | //debug_dump2file(name, svp->iram_rom, 0x800); |
618 | exit(1); |
619 | } |
620 | elprintf(EL_ANOMALY, "iram_context: %02i", val1); |
621 | return val1; |
622 | } |
623 | |
726bbb3e |
624 | #define PROGRAM(x) ((unsigned short *)svp->iram_rom)[x] |
625 | |
626 | static u32 interp_get_pc(void) |
627 | { |
892b1dd2 |
628 | #if 0 |
726bbb3e |
629 | unsigned short *pc1 = PC; |
630 | int i; |
892b1dd2 |
631 | |
726bbb3e |
632 | while (pc1[-1] != 0xfe01) pc1--; // goto current block start |
726bbb3e |
633 | |
892b1dd2 |
634 | if (rPC >= 0x800/2) |
635 | { |
636 | for (i = 0; i < 0x5090/2; i++) |
637 | if (block_table[i] == pc1) break; |
638 | if (i == 0x5090/2) goto fail; |
639 | } |
640 | else |
df143b36 |
641 | { |
642 | for (i = 0; i < 0x800/2; i++) |
643 | if (block_table_iram[iram_context][i] == pc1) break; |
892b1dd2 |
644 | if (i == 0x800/2) goto fail; |
726bbb3e |
645 | } |
646 | |
647 | return i + (PC - pc1); |
892b1dd2 |
648 | fail: |
649 | printf("block not found!\n"); |
650 | exit(1); |
651 | #else |
652 | return rPC; |
653 | #endif |
726bbb3e |
654 | } |
655 | |
df143b36 |
656 | static void *translate_block(int pc) |
726bbb3e |
657 | { |
892b1dd2 |
658 | unsigned int op, op1, icount = 0; |
df143b36 |
659 | void *ret; |
726bbb3e |
660 | |
df143b36 |
661 | ret = tcache_ptr; |
726bbb3e |
662 | |
663 | //printf("translate %04x -> %04x\n", pc<<1, (tcache_ptr-tcache)<<1); |
664 | for (;;) |
665 | { |
892b1dd2 |
666 | icount++; |
726bbb3e |
667 | op = PROGRAM(pc++); |
668 | op1 = op >> 9; |
726bbb3e |
669 | // need immediate? |
670 | if ((op1 & 0xf) == 4 || (op1 & 0xf) == 6) { |
892b1dd2 |
671 | op |= PROGRAM(pc++) << 16; // immediate |
726bbb3e |
672 | } |
892b1dd2 |
673 | *tcache_ptr++ = op; |
674 | *tcache_ptr = (unsigned int) in_funcs[op1]; |
675 | if (*tcache_ptr == 0) { |
676 | printf("NULL func! op=%08x (%02x)\n", op, op1); |
677 | exit(1); |
678 | } |
679 | tcache_ptr++; |
726bbb3e |
680 | if (op1 == 0x24 || op1 == 0x26 || // call, bra |
681 | ((op1 == 0 || op1 == 1 || op1 == 4 || op1 == 5 || op1 == 9 || op1 == 0x25) && |
682 | (op & 0xf0) == 0x60)) { // ld PC |
683 | break; |
684 | } |
685 | } |
892b1dd2 |
686 | *tcache_ptr++ = 0xfe01; |
726bbb3e |
687 | *tcache_ptr++ = 0xfe01; // end of block |
688 | //printf(" %i inst\n", icount); |
689 | |
892b1dd2 |
690 | if (tcache_ptr - tcache > TCACHE_SIZE/4) { |
726bbb3e |
691 | printf("tcache overflow!\n"); |
692 | fflush(stdout); |
693 | exit(1); |
694 | } |
695 | |
696 | // stats |
697 | nblocks++; |
df143b36 |
698 | //if (pc >= 0x400) |
892b1dd2 |
699 | printf("%i blocks, %i bytes\n", nblocks, (tcache_ptr - tcache)*4); |
df143b36 |
700 | |
701 | return ret; |
726bbb3e |
702 | } |
703 | |
704 | |
705 | |
706 | // ----------------------------------------------------- |
707 | |
708 | int ssp1601_dyn_init(void) |
709 | { |
710 | tcache = tcache_ptr = malloc(TCACHE_SIZE); |
711 | memset(tcache, 0, sizeof(TCACHE_SIZE)); |
712 | memset(block_table, 0, sizeof(block_table)); |
df143b36 |
713 | memset(block_table_iram, 0, sizeof(block_table_iram)); |
726bbb3e |
714 | *tcache_ptr++ = 0xfe01; |
892b1dd2 |
715 | *tcache_ptr++ = 0xfe01; |
726bbb3e |
716 | |
717 | return 0; |
718 | } |
719 | |
720 | |
721 | void ssp1601_dyn_reset(ssp1601_t *ssp) |
722 | { |
723 | ssp1601_reset_local(ssp); |
724 | } |
725 | |
726 | |
892b1dd2 |
727 | static void ssp1601_run2(unsigned int *iPC) |
728 | { |
729 | in_func *func; |
730 | unsigned int op, op1, imm; |
731 | while (*iPC != 0xfe01) |
732 | { |
733 | rPC++; |
734 | op = *iPC & 0xffff; |
735 | imm = *iPC++ >> 16; |
736 | op1 = op >> 9; |
737 | if ((op1 & 0xf) == 4 || (op1 & 0xf) == 6) rPC++; |
738 | PC = ((unsigned short *)&op) + 1; /* needed for interpreter */ |
739 | |
740 | func = (in_func *) *iPC++; |
741 | func(op, imm); |
742 | g_cycles--; |
743 | } |
744 | } |
745 | |
746 | |
726bbb3e |
747 | void ssp1601_dyn_run(int cycles) |
748 | { |
749 | while (cycles > 0) |
750 | { |
892b1dd2 |
751 | unsigned int *iPC; |
752 | //int pc_old = rPC; |
df143b36 |
753 | if (rPC < 0x800/2) |
754 | { |
755 | if (iram_dirty) { |
756 | iram_context = get_iram_context(); |
892b1dd2 |
757 | iram_dirty--; |
df143b36 |
758 | } |
759 | if (block_table_iram[iram_context][rPC] == NULL) |
760 | block_table_iram[iram_context][rPC] = translate_block(rPC); |
892b1dd2 |
761 | iPC = block_table_iram[iram_context][rPC]; |
df143b36 |
762 | } |
763 | else |
764 | { |
765 | if (block_table[rPC] == NULL) |
766 | block_table[rPC] = translate_block(rPC); |
892b1dd2 |
767 | iPC = block_table[rPC]; |
df143b36 |
768 | } |
726bbb3e |
769 | |
726bbb3e |
770 | had_jump = 0; |
771 | |
772 | //printf("enter @ %04x, PC=%04x\n", (PC - tcache)<<1, rPC<<1); |
892b1dd2 |
773 | g_cycles = 0; |
774 | ssp1601_run2(iPC); |
775 | cycles += g_cycles; |
776 | /* |
726bbb3e |
777 | if (!had_jump) { |
778 | // no jumps |
df143b36 |
779 | if (pc_old < 0x800/2) |
780 | rPC += (PC - block_table_iram[iram_context][pc_old]) - 1; |
781 | else |
782 | rPC += (PC - block_table[pc_old]) - 1; |
726bbb3e |
783 | } |
892b1dd2 |
784 | */ |
726bbb3e |
785 | //printf("end @ %04x, PC=%04x\n", (PC - tcache)<<1, rPC<<1); |
df143b36 |
786 | /* |
726bbb3e |
787 | if (pc_old < 0x400) { |
788 | // flush IRAM cache |
789 | tcache_ptr = block_table[pc_old]; |
790 | block_table[pc_old] = NULL; |
791 | nblocks--; |
792 | } |
793 | if (pc_old >= 0x400 && rPC < 0x400) |
794 | { |
795 | int i, crc = chksum_crc32(svp->iram_rom, 0x800); |
796 | for (i = 0; i < 32; i++) |
797 | if (iram_crcs[i] == crc) break; |
798 | if (i == 32) { |
df143b36 |
799 | char name[32]; |
726bbb3e |
800 | for (i = 0; i < 32 && iram_crcs[i]; i++); |
801 | iram_crcs[i] = crc; |
802 | printf("%i IRAMs\n", i+1); |
df143b36 |
803 | sprintf(name, "ir%08x.bin", crc); |
804 | debug_dump2file(name, svp->iram_rom, 0x800); |
726bbb3e |
805 | } |
12f0f94d |
806 | printf("CRC %08x %08x\n", crc, iram_id); |
726bbb3e |
807 | } |
df143b36 |
808 | */ |
726bbb3e |
809 | } |
810 | // debug_dump2file("tcache.bin", tcache, (tcache_ptr - tcache) << 1); |
811 | // exit(1); |
812 | } |
813 | |