Commit | Line | Data |
---|---|---|
6f1edc3c PC |
1 | #include <lightrec.h> |
2 | #include <stdbool.h> | |
3 | #include <stdio.h> | |
4 | #include <unistd.h> | |
5 | #include <signal.h> | |
6 | ||
7 | #include "../cdrom.h" | |
8 | #include "../gpu.h" | |
9 | #include "../gte.h" | |
10 | #include "../mdec.h" | |
11 | #include "../psxdma.h" | |
12 | #include "../psxhw.h" | |
13 | #include "../psxmem.h" | |
14 | #include "../r3000a.h" | |
15 | ||
16 | #include "../frontend/main.h" | |
17 | ||
f8548105 | 18 | #include "mem.h" |
70939d49 | 19 | #include "plugin.h" |
f8548105 | 20 | |
46a38bda | 21 | #if (defined(__arm__) || defined(__aarch64__)) && !defined(ALLOW_LIGHTREC_ON_ARM) |
22 | #error "Lightrec should not be used on ARM (please specify DYNAREC=ari64 to make)" | |
23 | #endif | |
24 | ||
6f1edc3c PC |
25 | #define ARRAY_SIZE(x) (sizeof(x) ? sizeof(x) / sizeof((x)[0]) : 0) |
26 | ||
27 | #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ | |
28 | # define LE32TOH(x) __builtin_bswap32(x) | |
29 | # define HTOLE32(x) __builtin_bswap32(x) | |
30 | # define LE16TOH(x) __builtin_bswap16(x) | |
31 | # define HTOLE16(x) __builtin_bswap16(x) | |
32 | #else | |
33 | # define LE32TOH(x) (x) | |
34 | # define HTOLE32(x) (x) | |
35 | # define LE16TOH(x) (x) | |
36 | # define HTOLE16(x) (x) | |
37 | #endif | |
38 | ||
39 | #ifdef __GNUC__ | |
40 | # define likely(x) __builtin_expect(!!(x),1) | |
41 | # define unlikely(x) __builtin_expect(!!(x),0) | |
42 | #else | |
43 | # define likely(x) (x) | |
44 | # define unlikely(x) (x) | |
45 | #endif | |
46 | ||
630b122b | 47 | psxRegisters psxRegs; |
48 | Rcnt rcnts[4]; | |
49 | ||
6f1edc3c PC |
50 | static struct lightrec_state *lightrec_state; |
51 | ||
52 | static char *name = "retroarch.exe"; | |
53 | ||
54 | static bool use_lightrec_interpreter; | |
6b02f240 | 55 | static bool use_pcsx_interpreter; |
6f1edc3c PC |
56 | static bool lightrec_debug; |
57 | static bool lightrec_very_debug; | |
2bf88032 | 58 | static bool booting; |
6f1edc3c PC |
59 | static u32 lightrec_begin_cycles; |
60 | ||
6f1edc3c PC |
61 | enum my_cp2_opcodes { |
62 | OP_CP2_RTPS = 0x01, | |
63 | OP_CP2_NCLIP = 0x06, | |
64 | OP_CP2_OP = 0x0c, | |
65 | OP_CP2_DPCS = 0x10, | |
66 | OP_CP2_INTPL = 0x11, | |
67 | OP_CP2_MVMVA = 0x12, | |
68 | OP_CP2_NCDS = 0x13, | |
69 | OP_CP2_CDP = 0x14, | |
70 | OP_CP2_NCDT = 0x16, | |
71 | OP_CP2_NCCS = 0x1b, | |
72 | OP_CP2_CC = 0x1c, | |
73 | OP_CP2_NCS = 0x1e, | |
74 | OP_CP2_NCT = 0x20, | |
75 | OP_CP2_SQR = 0x28, | |
76 | OP_CP2_DCPL = 0x29, | |
77 | OP_CP2_DPCT = 0x2a, | |
78 | OP_CP2_AVSZ3 = 0x2d, | |
79 | OP_CP2_AVSZ4 = 0x2e, | |
80 | OP_CP2_RTPT = 0x30, | |
81 | OP_CP2_GPF = 0x3d, | |
82 | OP_CP2_GPL = 0x3e, | |
83 | OP_CP2_NCCT = 0x3f, | |
84 | }; | |
85 | ||
86 | static void (*cp2_ops[])(struct psxCP2Regs *) = { | |
87 | [OP_CP2_RTPS] = gteRTPS, | |
88 | [OP_CP2_RTPS] = gteRTPS, | |
89 | [OP_CP2_NCLIP] = gteNCLIP, | |
90 | [OP_CP2_OP] = gteOP, | |
91 | [OP_CP2_DPCS] = gteDPCS, | |
92 | [OP_CP2_INTPL] = gteINTPL, | |
93 | [OP_CP2_MVMVA] = gteMVMVA, | |
94 | [OP_CP2_NCDS] = gteNCDS, | |
95 | [OP_CP2_CDP] = gteCDP, | |
96 | [OP_CP2_NCDT] = gteNCDT, | |
97 | [OP_CP2_NCCS] = gteNCCS, | |
98 | [OP_CP2_CC] = gteCC, | |
99 | [OP_CP2_NCS] = gteNCS, | |
100 | [OP_CP2_NCT] = gteNCT, | |
101 | [OP_CP2_SQR] = gteSQR, | |
102 | [OP_CP2_DCPL] = gteDCPL, | |
103 | [OP_CP2_DPCT] = gteDPCT, | |
104 | [OP_CP2_AVSZ3] = gteAVSZ3, | |
105 | [OP_CP2_AVSZ4] = gteAVSZ4, | |
106 | [OP_CP2_RTPT] = gteRTPT, | |
107 | [OP_CP2_GPF] = gteGPF, | |
108 | [OP_CP2_GPL] = gteGPL, | |
109 | [OP_CP2_NCCT] = gteNCCT, | |
110 | }; | |
111 | ||
112 | static char cache_buf[64 * 1024]; | |
113 | ||
0733c3ab | 114 | static void cop2_op(struct lightrec_state *state, u32 func) |
6f1edc3c | 115 | { |
0733c3ab | 116 | struct lightrec_registers *regs = lightrec_get_registers(state); |
6f1edc3c | 117 | |
0733c3ab | 118 | psxRegs.code = func; |
6f1edc3c | 119 | |
0733c3ab PC |
120 | if (unlikely(!cp2_ops[func & 0x3f])) { |
121 | fprintf(stderr, "Invalid CP2 function %u\n", func); | |
122 | } else { | |
123 | /* This works because regs->cp2c comes right after regs->cp2d, | |
124 | * so it can be cast to a pcsxCP2Regs pointer. */ | |
125 | cp2_ops[func & 0x3f]((psxCP2Regs *) regs->cp2d); | |
126 | } | |
6f1edc3c PC |
127 | } |
128 | ||
2bf88032 PC |
129 | static bool has_interrupt(void) |
130 | { | |
131 | return ((psxHu32(0x1070) & psxHu32(0x1074)) && | |
132 | (psxRegs.CP0.n.Status & 0x401) == 0x401) || | |
133 | (psxRegs.CP0.n.Status & psxRegs.CP0.n.Cause & 0x0300); | |
134 | } | |
135 | ||
f4f9f2a4 PC |
136 | static void lightrec_restore_state(struct lightrec_state *state) |
137 | { | |
138 | lightrec_reset_cycle_count(state, psxRegs.cycle); | |
2bf88032 PC |
139 | |
140 | if (booting || has_interrupt()) | |
141 | lightrec_set_exit_flags(state, LIGHTREC_EXIT_CHECK_INTERRUPT); | |
142 | else | |
143 | lightrec_set_target_cycle_count(state, next_interupt); | |
f4f9f2a4 PC |
144 | } |
145 | ||
6b02f240 | 146 | static void hw_write_byte(struct lightrec_state *state, |
147 | u32 op, void *host, u32 mem, u8 val) | |
6f1edc3c PC |
148 | { |
149 | psxRegs.cycle = lightrec_current_cycle_count(state); | |
150 | ||
151 | psxHwWrite8(mem, val); | |
6f1edc3c | 152 | |
f4f9f2a4 | 153 | lightrec_restore_state(state); |
6f1edc3c PC |
154 | } |
155 | ||
6b02f240 | 156 | static void hw_write_half(struct lightrec_state *state, |
157 | u32 op, void *host, u32 mem, u16 val) | |
6f1edc3c PC |
158 | { |
159 | psxRegs.cycle = lightrec_current_cycle_count(state); | |
160 | ||
161 | psxHwWrite16(mem, val); | |
6f1edc3c | 162 | |
f4f9f2a4 | 163 | lightrec_restore_state(state); |
6f1edc3c PC |
164 | } |
165 | ||
6b02f240 | 166 | static void hw_write_word(struct lightrec_state *state, |
167 | u32 op, void *host, u32 mem, u32 val) | |
6f1edc3c PC |
168 | { |
169 | psxRegs.cycle = lightrec_current_cycle_count(state); | |
170 | ||
171 | psxHwWrite32(mem, val); | |
6f1edc3c | 172 | |
f4f9f2a4 | 173 | lightrec_restore_state(state); |
6f1edc3c PC |
174 | } |
175 | ||
6b02f240 | 176 | static u8 hw_read_byte(struct lightrec_state *state, u32 op, void *host, u32 mem) |
6f1edc3c PC |
177 | { |
178 | u8 val; | |
179 | ||
180 | psxRegs.cycle = lightrec_current_cycle_count(state); | |
181 | ||
6f1edc3c | 182 | val = psxHwRead8(mem); |
f4f9f2a4 PC |
183 | |
184 | lightrec_restore_state(state); | |
6f1edc3c PC |
185 | |
186 | return val; | |
187 | } | |
188 | ||
6b02f240 | 189 | static u16 hw_read_half(struct lightrec_state *state, |
190 | u32 op, void *host, u32 mem) | |
6f1edc3c PC |
191 | { |
192 | u16 val; | |
193 | ||
194 | psxRegs.cycle = lightrec_current_cycle_count(state); | |
195 | ||
6f1edc3c | 196 | val = psxHwRead16(mem); |
f4f9f2a4 PC |
197 | |
198 | lightrec_restore_state(state); | |
6f1edc3c PC |
199 | |
200 | return val; | |
201 | } | |
202 | ||
6b02f240 | 203 | static u32 hw_read_word(struct lightrec_state *state, |
204 | u32 op, void *host, u32 mem) | |
6f1edc3c PC |
205 | { |
206 | u32 val; | |
207 | ||
208 | psxRegs.cycle = lightrec_current_cycle_count(state); | |
209 | ||
6f1edc3c | 210 | val = psxHwRead32(mem); |
f4f9f2a4 PC |
211 | |
212 | lightrec_restore_state(state); | |
6f1edc3c PC |
213 | |
214 | return val; | |
215 | } | |
216 | ||
217 | static struct lightrec_mem_map_ops hw_regs_ops = { | |
218 | .sb = hw_write_byte, | |
219 | .sh = hw_write_half, | |
220 | .sw = hw_write_word, | |
221 | .lb = hw_read_byte, | |
222 | .lh = hw_read_half, | |
223 | .lw = hw_read_word, | |
224 | }; | |
225 | ||
226 | static u32 cache_ctrl; | |
227 | ||
6b02f240 | 228 | static void cache_ctrl_write_word(struct lightrec_state *state, |
229 | u32 op, void *host, u32 mem, u32 val) | |
6f1edc3c PC |
230 | { |
231 | cache_ctrl = val; | |
232 | } | |
233 | ||
6b02f240 | 234 | static u32 cache_ctrl_read_word(struct lightrec_state *state, |
235 | u32 op, void *host, u32 mem) | |
6f1edc3c PC |
236 | { |
237 | return cache_ctrl; | |
238 | } | |
239 | ||
240 | static struct lightrec_mem_map_ops cache_ctrl_ops = { | |
241 | .sw = cache_ctrl_write_word, | |
242 | .lw = cache_ctrl_read_word, | |
243 | }; | |
244 | ||
245 | static struct lightrec_mem_map lightrec_map[] = { | |
246 | [PSX_MAP_KERNEL_USER_RAM] = { | |
247 | /* Kernel and user memory */ | |
248 | .pc = 0x00000000, | |
249 | .length = 0x200000, | |
250 | }, | |
251 | [PSX_MAP_BIOS] = { | |
252 | /* BIOS */ | |
253 | .pc = 0x1fc00000, | |
254 | .length = 0x80000, | |
255 | }, | |
256 | [PSX_MAP_SCRATCH_PAD] = { | |
257 | /* Scratch pad */ | |
258 | .pc = 0x1f800000, | |
259 | .length = 0x400, | |
260 | }, | |
261 | [PSX_MAP_PARALLEL_PORT] = { | |
262 | /* Parallel port */ | |
263 | .pc = 0x1f000000, | |
264 | .length = 0x10000, | |
265 | }, | |
266 | [PSX_MAP_HW_REGISTERS] = { | |
267 | /* Hardware registers */ | |
268 | .pc = 0x1f801000, | |
269 | .length = 0x2000, | |
270 | .ops = &hw_regs_ops, | |
271 | }, | |
272 | [PSX_MAP_CACHE_CONTROL] = { | |
273 | /* Cache control */ | |
274 | .pc = 0x5ffe0130, | |
275 | .length = 4, | |
276 | .ops = &cache_ctrl_ops, | |
277 | }, | |
278 | ||
279 | /* Mirrors of the kernel/user memory */ | |
280 | [PSX_MAP_MIRROR1] = { | |
281 | .pc = 0x00200000, | |
282 | .length = 0x200000, | |
283 | .mirror_of = &lightrec_map[PSX_MAP_KERNEL_USER_RAM], | |
284 | }, | |
285 | [PSX_MAP_MIRROR2] = { | |
286 | .pc = 0x00400000, | |
287 | .length = 0x200000, | |
288 | .mirror_of = &lightrec_map[PSX_MAP_KERNEL_USER_RAM], | |
289 | }, | |
290 | [PSX_MAP_MIRROR3] = { | |
291 | .pc = 0x00600000, | |
292 | .length = 0x200000, | |
293 | .mirror_of = &lightrec_map[PSX_MAP_KERNEL_USER_RAM], | |
294 | }, | |
f8548105 PC |
295 | [PSX_MAP_CODE_BUFFER] = { |
296 | .length = CODE_BUFFER_SIZE, | |
297 | }, | |
6f1edc3c PC |
298 | }; |
299 | ||
0733c3ab PC |
300 | static void lightrec_enable_ram(struct lightrec_state *state, bool enable) |
301 | { | |
302 | if (enable) | |
303 | memcpy(psxM, cache_buf, sizeof(cache_buf)); | |
304 | else | |
305 | memcpy(cache_buf, psxM, sizeof(cache_buf)); | |
306 | } | |
307 | ||
6f1edc3c | 308 | static const struct lightrec_ops lightrec_ops = { |
0733c3ab PC |
309 | .cop2_op = cop2_op, |
310 | .enable_ram = lightrec_enable_ram, | |
6f1edc3c PC |
311 | }; |
312 | ||
313 | static int lightrec_plugin_init(void) | |
314 | { | |
315 | lightrec_map[PSX_MAP_KERNEL_USER_RAM].address = psxM; | |
316 | lightrec_map[PSX_MAP_BIOS].address = psxR; | |
317 | lightrec_map[PSX_MAP_SCRATCH_PAD].address = psxH; | |
318 | lightrec_map[PSX_MAP_PARALLEL_PORT].address = psxP; | |
319 | ||
479d58cf PC |
320 | if (LIGHTREC_CUSTOM_MAP) { |
321 | lightrec_map[PSX_MAP_MIRROR1].address = psxM + 0x200000; | |
322 | lightrec_map[PSX_MAP_MIRROR2].address = psxM + 0x400000; | |
323 | lightrec_map[PSX_MAP_MIRROR3].address = psxM + 0x600000; | |
f8548105 | 324 | lightrec_map[PSX_MAP_CODE_BUFFER].address = code_buffer; |
479d58cf PC |
325 | } |
326 | ||
6f1edc3c PC |
327 | lightrec_debug = !!getenv("LIGHTREC_DEBUG"); |
328 | lightrec_very_debug = !!getenv("LIGHTREC_VERY_DEBUG"); | |
329 | use_lightrec_interpreter = !!getenv("LIGHTREC_INTERPRETER"); | |
330 | if (getenv("LIGHTREC_BEGIN_CYCLES")) | |
331 | lightrec_begin_cycles = (unsigned int) strtol( | |
332 | getenv("LIGHTREC_BEGIN_CYCLES"), NULL, 0); | |
333 | ||
334 | lightrec_state = lightrec_init(name, | |
335 | lightrec_map, ARRAY_SIZE(lightrec_map), | |
336 | &lightrec_ops); | |
337 | ||
9361a5aa EC |
338 | // fprintf(stderr, "M=0x%lx, P=0x%lx, R=0x%lx, H=0x%lx\n", |
339 | // (uintptr_t) psxM, | |
340 | // (uintptr_t) psxP, | |
341 | // (uintptr_t) psxR, | |
342 | // (uintptr_t) psxH); | |
6f1edc3c PC |
343 | |
344 | #ifndef _WIN32 | |
345 | signal(SIGPIPE, exit); | |
346 | #endif | |
347 | return 0; | |
348 | } | |
349 | ||
350 | static u32 hash_calculate_le(const void *buffer, u32 count) | |
351 | { | |
352 | unsigned int i; | |
353 | u32 *data = (u32 *) buffer; | |
354 | u32 hash = 0xffffffff; | |
355 | ||
356 | count /= 4; | |
357 | for(i = 0; i < count; ++i) { | |
358 | hash += LE32TOH(data[i]); | |
359 | hash += (hash << 10); | |
360 | hash ^= (hash >> 6); | |
361 | } | |
362 | ||
363 | hash += (hash << 3); | |
364 | hash ^= (hash >> 11); | |
365 | hash += (hash << 15); | |
366 | return hash; | |
367 | } | |
368 | ||
369 | static u32 hash_calculate(const void *buffer, u32 count) | |
370 | { | |
371 | unsigned int i; | |
372 | u32 *data = (u32 *) buffer; | |
373 | u32 hash = 0xffffffff; | |
374 | ||
375 | count /= 4; | |
376 | for(i = 0; i < count; ++i) { | |
377 | hash += data[i]; | |
378 | hash += (hash << 10); | |
379 | hash ^= (hash >> 6); | |
380 | } | |
381 | ||
382 | hash += (hash << 3); | |
383 | hash ^= (hash >> 11); | |
384 | hash += (hash << 15); | |
385 | return hash; | |
386 | } | |
387 | ||
388 | static const char * const mips_regs[] = { | |
389 | "zero", | |
390 | "at", | |
391 | "v0", "v1", | |
392 | "a0", "a1", "a2", "a3", | |
393 | "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", | |
394 | "s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7", | |
395 | "t8", "t9", | |
396 | "k0", "k1", | |
397 | "gp", "sp", "fp", "ra", | |
398 | "lo", "hi", | |
399 | }; | |
400 | ||
401 | static void print_for_big_ass_debugger(void) | |
402 | { | |
403 | unsigned int i; | |
404 | ||
405 | printf("CYCLE 0x%08x PC 0x%08x", psxRegs.cycle, psxRegs.pc); | |
406 | ||
407 | if (lightrec_very_debug) | |
408 | printf(" RAM 0x%08x SCRATCH 0x%08x HW 0x%08x", | |
409 | hash_calculate_le(psxM, 0x200000), | |
410 | hash_calculate_le(psxH, 0x400), | |
411 | hash_calculate_le(psxH + 0x1000, 0x2000)); | |
412 | ||
413 | printf(" CP0 0x%08x CP2D 0x%08x CP2C 0x%08x INT 0x%04x INTCYCLE 0x%08x GPU 0x%08x", | |
414 | hash_calculate(&psxRegs.CP0.r, | |
415 | sizeof(psxRegs.CP0.r)), | |
416 | hash_calculate(&psxRegs.CP2D.r, | |
417 | sizeof(psxRegs.CP2D.r)), | |
418 | hash_calculate(&psxRegs.CP2C.r, | |
419 | sizeof(psxRegs.CP2C.r)), | |
420 | psxRegs.interrupt, | |
421 | hash_calculate(psxRegs.intCycle, | |
422 | sizeof(psxRegs.intCycle)), | |
423 | LE32TOH(HW_GPU_STATUS)); | |
424 | ||
425 | if (lightrec_very_debug) | |
426 | for (i = 0; i < 34; i++) | |
427 | printf(" %s 0x%08x", mips_regs[i], psxRegs.GPR.r[i]); | |
428 | else | |
429 | printf(" GPR 0x%08x", hash_calculate(&psxRegs.GPR.r, | |
430 | sizeof(psxRegs.GPR.r))); | |
431 | printf("\n"); | |
432 | } | |
433 | ||
0733c3ab PC |
434 | static void lightrec_dump_regs(struct lightrec_state *state) |
435 | { | |
436 | struct lightrec_registers *regs = lightrec_get_registers(state); | |
437 | ||
438 | if (unlikely(booting)) | |
439 | memcpy(&psxRegs.GPR, regs->gpr, sizeof(regs->gpr)); | |
440 | psxRegs.CP0.n.Status = regs->cp0[12]; | |
441 | psxRegs.CP0.n.Cause = regs->cp0[13]; | |
442 | } | |
443 | ||
444 | static void lightrec_restore_regs(struct lightrec_state *state) | |
445 | { | |
446 | struct lightrec_registers *regs = lightrec_get_registers(state); | |
447 | ||
448 | if (unlikely(booting)) | |
449 | memcpy(regs->gpr, &psxRegs.GPR, sizeof(regs->gpr)); | |
450 | regs->cp0[12] = psxRegs.CP0.n.Status; | |
451 | regs->cp0[13] = psxRegs.CP0.n.Cause; | |
452 | regs->cp0[14] = psxRegs.CP0.n.EPC; | |
453 | } | |
6b02f240 | 454 | |
455 | extern void intExecuteBlock(); | |
2bf88032 | 456 | extern void gen_interupt(); |
6b02f240 | 457 | |
6f1edc3c PC |
458 | static void lightrec_plugin_execute_block(void) |
459 | { | |
460 | u32 old_pc = psxRegs.pc; | |
461 | u32 flags; | |
462 | ||
2bf88032 PC |
463 | gen_interupt(); |
464 | ||
6b02f240 | 465 | if (use_pcsx_interpreter) { |
466 | intExecuteBlock(); | |
467 | } else { | |
468 | lightrec_reset_cycle_count(lightrec_state, psxRegs.cycle); | |
0733c3ab | 469 | lightrec_restore_regs(lightrec_state); |
6f1edc3c | 470 | |
2bf88032 | 471 | if (unlikely(use_lightrec_interpreter)) |
6b02f240 | 472 | psxRegs.pc = lightrec_run_interpreter(lightrec_state, |
473 | psxRegs.pc); | |
2bf88032 | 474 | // step during early boot so that 0x80030000 fastboot hack works |
0733c3ab | 475 | else if (unlikely(booting || lightrec_debug)) |
6b02f240 | 476 | psxRegs.pc = lightrec_execute_one(lightrec_state, |
477 | psxRegs.pc); | |
2bf88032 PC |
478 | else |
479 | psxRegs.pc = lightrec_execute(lightrec_state, | |
480 | psxRegs.pc, next_interupt); | |
6f1edc3c | 481 | |
6b02f240 | 482 | psxRegs.cycle = lightrec_current_cycle_count(lightrec_state); |
6f1edc3c | 483 | |
0733c3ab | 484 | lightrec_dump_regs(lightrec_state); |
6b02f240 | 485 | flags = lightrec_exit_flags(lightrec_state); |
6f1edc3c | 486 | |
6b02f240 | 487 | if (flags & LIGHTREC_EXIT_SEGFAULT) { |
488 | fprintf(stderr, "Exiting at cycle 0x%08x\n", | |
489 | psxRegs.cycle); | |
490 | exit(1); | |
491 | } | |
6f1edc3c | 492 | |
6b02f240 | 493 | if (flags & LIGHTREC_EXIT_SYSCALL) |
494 | psxException(0x20, 0); | |
6f1edc3c | 495 | |
2bf88032 PC |
496 | if (booting && (psxRegs.pc & 0xff800000) == 0x80000000) |
497 | booting = false; | |
498 | } | |
6f1edc3c PC |
499 | |
500 | if (lightrec_debug && psxRegs.cycle >= lightrec_begin_cycles | |
501 | && psxRegs.pc != old_pc) | |
502 | print_for_big_ass_debugger(); | |
503 | ||
504 | if ((psxRegs.CP0.n.Cause & psxRegs.CP0.n.Status & 0x300) && | |
505 | (psxRegs.CP0.n.Status & 0x1)) { | |
506 | /* Handle software interrupts */ | |
507 | psxRegs.CP0.n.Cause &= ~0x7c; | |
508 | psxException(psxRegs.CP0.n.Cause, 0); | |
509 | } | |
6f1edc3c PC |
510 | } |
511 | ||
512 | static void lightrec_plugin_execute(void) | |
513 | { | |
514 | extern int stop; | |
515 | ||
516 | while (!stop) | |
517 | lightrec_plugin_execute_block(); | |
518 | } | |
519 | ||
520 | static void lightrec_plugin_clear(u32 addr, u32 size) | |
521 | { | |
8c9468f1 ZC |
522 | if (addr == 0 && size == UINT32_MAX) |
523 | lightrec_invalidate_all(lightrec_state); | |
524 | else | |
525 | /* size * 4: PCSX uses DMA units */ | |
526 | lightrec_invalidate(lightrec_state, addr, size * 4); | |
6f1edc3c PC |
527 | } |
528 | ||
7a811716 | 529 | static void lightrec_plugin_notify(int note, void *data) |
530 | { | |
531 | /* | |
532 | To change once proper icache emulation is emulated | |
533 | switch (note) | |
534 | { | |
535 | case R3000ACPU_NOTIFY_CACHE_UNISOLATED: | |
536 | lightrec_plugin_clear(0, 0x200000/4); | |
537 | break; | |
538 | case R3000ACPU_NOTIFY_CACHE_ISOLATED: | |
539 | // Sent from psxDma3(). | |
540 | case R3000ACPU_NOTIFY_DMA3_EXE_LOAD: | |
541 | default: | |
542 | break; | |
543 | }*/ | |
544 | } | |
630b122b | 545 | |
546 | static void lightrec_plugin_apply_config() | |
547 | { | |
548 | } | |
7a811716 | 549 | |
6f1edc3c PC |
550 | static void lightrec_plugin_shutdown(void) |
551 | { | |
552 | lightrec_destroy(lightrec_state); | |
553 | } | |
554 | ||
555 | static void lightrec_plugin_reset(void) | |
556 | { | |
0733c3ab PC |
557 | struct lightrec_registers *regs; |
558 | ||
37e4b2cc | 559 | lightrec_plugin_shutdown(); |
560 | lightrec_plugin_init(); | |
0733c3ab PC |
561 | |
562 | regs = lightrec_get_registers(lightrec_state); | |
563 | ||
564 | regs->cp0[12] = 0x10900000; // COP0 enabled | BEV = 1 | TS = 1 | |
565 | regs->cp0[15] = 0x00000002; // PRevID = Revision ID, same as R3000A | |
566 | ||
2bf88032 | 567 | booting = true; |
6f1edc3c PC |
568 | } |
569 | ||
6962f770 PC |
570 | void lightrec_plugin_prepare_load_state(void) |
571 | { | |
572 | struct lightrec_registers *regs; | |
573 | ||
574 | regs = lightrec_get_registers(lightrec_state); | |
575 | memcpy(regs->cp2d, &psxRegs.CP2, sizeof(regs->cp2d) + sizeof(regs->cp2c)); | |
576 | memcpy(regs->cp0, &psxRegs.CP0, sizeof(regs->cp0)); | |
577 | memcpy(regs->gpr, &psxRegs.GPR, sizeof(regs->gpr)); | |
578 | ||
579 | lightrec_invalidate_all(lightrec_state); | |
580 | } | |
581 | ||
582 | void lightrec_plugin_prepare_save_state(void) | |
583 | { | |
584 | struct lightrec_registers *regs; | |
585 | ||
586 | regs = lightrec_get_registers(lightrec_state); | |
587 | memcpy(&psxRegs.CP2, regs->cp2d, sizeof(regs->cp2d) + sizeof(regs->cp2c)); | |
588 | memcpy(&psxRegs.CP0, regs->cp0, sizeof(regs->cp0)); | |
589 | memcpy(&psxRegs.GPR, regs->gpr, sizeof(regs->gpr)); | |
590 | } | |
591 | ||
6f1edc3c PC |
592 | R3000Acpu psxRec = |
593 | { | |
594 | lightrec_plugin_init, | |
595 | lightrec_plugin_reset, | |
596 | lightrec_plugin_execute, | |
597 | lightrec_plugin_execute_block, | |
598 | lightrec_plugin_clear, | |
7a811716 | 599 | lightrec_plugin_notify, |
630b122b | 600 | lightrec_plugin_apply_config, |
6f1edc3c PC |
601 | lightrec_plugin_shutdown, |
602 | }; |