sh2 drc comments and missing pandora file
[picodrive.git] / pico / pico_int.h
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1// Pico Library - Internal Header File\r
2\r
3// (c) Copyright 2004 Dave, All rights reserved.\r
4// (c) Copyright 2006-2009 Grazvydas "notaz" Ignotas, all rights reserved.\r
5// Free for non-commercial use.\r
6\r
7// For commercial use, separate licencing terms must be obtained.\r
8\r
9#ifndef PICO_INTERNAL_INCLUDED\r
10#define PICO_INTERNAL_INCLUDED\r
11\r
12#include <stdio.h>\r
13#include <stdlib.h>\r
14#include <string.h>\r
15#include "pico.h"\r
16#include "carthw/carthw.h"\r
17\r
18//\r
19#define USE_POLL_DETECT\r
20\r
21#ifndef PICO_INTERNAL\r
22#define PICO_INTERNAL\r
23#endif\r
24#ifndef PICO_INTERNAL_ASM\r
25#define PICO_INTERNAL_ASM\r
26#endif\r
27\r
28// to select core, define EMU_C68K, EMU_M68K or EMU_F68K in your makefile or project\r
29\r
30#ifdef __cplusplus\r
31extern "C" {\r
32#endif\r
33\r
34\r
35// ----------------------- 68000 CPU -----------------------\r
36#ifdef EMU_C68K\r
37#include "../cpu/Cyclone/Cyclone.h"\r
38extern struct Cyclone PicoCpuCM68k, PicoCpuCS68k;\r
39#define SekCyclesLeftNoMCD PicoCpuCM68k.cycles // cycles left for this run\r
40#define SekCyclesLeft \\r
41 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
42#define SekCyclesLeftS68k \\r
43 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuCS68k.cycles)\r
44#define SekEndTimeslice(after) PicoCpuCM68k.cycles=after\r
45#define SekEndTimesliceS68k(after) PicoCpuCS68k.cycles=after\r
46#define SekPc (PicoCpuCM68k.pc-PicoCpuCM68k.membase)\r
47#define SekPcS68k (PicoCpuCS68k.pc-PicoCpuCS68k.membase)\r
48#define SekDar(x) PicoCpuCM68k.d[x]\r
49#define SekSr CycloneGetSr(&PicoCpuCM68k)\r
50#define SekSetStop(x) { PicoCpuCM68k.state_flags&=~1; if (x) { PicoCpuCM68k.state_flags|=1; PicoCpuCM68k.cycles=0; } }\r
51#define SekSetStopS68k(x) { PicoCpuCS68k.state_flags&=~1; if (x) { PicoCpuCS68k.state_flags|=1; PicoCpuCS68k.cycles=0; } }\r
52#define SekIsStoppedS68k() (PicoCpuCS68k.state_flags&1)\r
53#define SekShouldInterrupt (PicoCpuCM68k.irq > (PicoCpuCM68k.srh&7))\r
54\r
55#define SekInterrupt(i) PicoCpuCM68k.irq=i\r
56#define SekIrqLevel PicoCpuCM68k.irq\r
57\r
58#ifdef EMU_M68K\r
59#define EMU_CORE_DEBUG\r
60#endif\r
61#endif\r
62\r
63#ifdef EMU_F68K\r
64#include "../cpu/fame/fame.h"\r
65extern M68K_CONTEXT PicoCpuFM68k, PicoCpuFS68k;\r
66#define SekCyclesLeftNoMCD PicoCpuFM68k.io_cycle_counter\r
67#define SekCyclesLeft \\r
68 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
69#define SekCyclesLeftS68k \\r
70 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuFS68k.io_cycle_counter)\r
71#define SekEndTimeslice(after) PicoCpuFM68k.io_cycle_counter=after\r
72#define SekEndTimesliceS68k(after) PicoCpuFS68k.io_cycle_counter=after\r
73#define SekPc fm68k_get_pc(&PicoCpuFM68k)\r
74#define SekPcS68k fm68k_get_pc(&PicoCpuFS68k)\r
75#define SekDar(x) PicoCpuFM68k.dreg[x].D\r
76#define SekSr PicoCpuFM68k.sr\r
77#define SekSetStop(x) { \\r
78 PicoCpuFM68k.execinfo &= ~FM68K_HALTED; \\r
79 if (x) { PicoCpuFM68k.execinfo |= FM68K_HALTED; PicoCpuFM68k.io_cycle_counter = 0; } \\r
80}\r
81#define SekSetStopS68k(x) { \\r
82 PicoCpuFS68k.execinfo &= ~FM68K_HALTED; \\r
83 if (x) { PicoCpuFS68k.execinfo |= FM68K_HALTED; PicoCpuFS68k.io_cycle_counter = 0; } \\r
84}\r
85#define SekIsStoppedS68k() (PicoCpuFS68k.execinfo&FM68K_HALTED)\r
86#define SekShouldInterrupt fm68k_would_interrupt()\r
87\r
88#define SekInterrupt(irq) PicoCpuFM68k.interrupts[0]=irq\r
89#define SekIrqLevel PicoCpuFM68k.interrupts[0]\r
90\r
91#ifdef EMU_M68K\r
92#define EMU_CORE_DEBUG\r
93#endif\r
94#endif\r
95\r
96#ifdef EMU_M68K\r
97#include "../cpu/musashi/m68kcpu.h"\r
98extern m68ki_cpu_core PicoCpuMM68k, PicoCpuMS68k;\r
99#ifndef SekCyclesLeft\r
100#define SekCyclesLeftNoMCD PicoCpuMM68k.cyc_remaining_cycles\r
101#define SekCyclesLeft \\r
102 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
103#define SekCyclesLeftS68k \\r
104 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuMS68k.cyc_remaining_cycles)\r
105#define SekEndTimeslice(after) SET_CYCLES(after)\r
106#define SekEndTimesliceS68k(after) PicoCpuMS68k.cyc_remaining_cycles=after\r
107#define SekPc m68k_get_reg(&PicoCpuMM68k, M68K_REG_PC)\r
108#define SekPcS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_PC)\r
109#define SekDar(x) PicoCpuMM68k.dar[x]\r
110#define SekSr m68k_get_reg(&PicoCpuMM68k, M68K_REG_SR)\r
111#define SekSetStop(x) { \\r
112 if(x) { SET_CYCLES(0); PicoCpuMM68k.stopped=STOP_LEVEL_STOP; } \\r
113 else PicoCpuMM68k.stopped=0; \\r
114}\r
115#define SekSetStopS68k(x) { \\r
116 if(x) { SET_CYCLES(0); PicoCpuMS68k.stopped=STOP_LEVEL_STOP; } \\r
117 else PicoCpuMS68k.stopped=0; \\r
118}\r
119#define SekIsStoppedS68k() (PicoCpuMS68k.stopped==STOP_LEVEL_STOP)\r
120#define SekShouldInterrupt (CPU_INT_LEVEL > FLAG_INT_MASK)\r
121\r
122#define SekInterrupt(irq) { \\r
123 void *oldcontext = m68ki_cpu_p; \\r
124 m68k_set_context(&PicoCpuMM68k); \\r
125 m68k_set_irq(irq); \\r
126 m68k_set_context(oldcontext); \\r
127}\r
128#define SekIrqLevel (PicoCpuMM68k.int_level >> 8)\r
129\r
130#endif\r
131#endif // EMU_M68K\r
132\r
133extern int SekCycleCnt; // cycles done in this frame\r
134extern int SekCycleAim; // cycle aim\r
135extern unsigned int SekCycleCntT; // total cycle counter, updated once per frame\r
136\r
137#define SekCyclesReset() { \\r
138 SekCycleCntT+=SekCycleAim; \\r
139 SekCycleCnt-=SekCycleAim; \\r
140 SekCycleAim=0; \\r
141}\r
142#define SekCyclesBurn(c) SekCycleCnt+=c\r
143#define SekCyclesDone() (SekCycleAim-SekCyclesLeft) // number of cycles done in this frame (can be checked anywhere)\r
144#define SekCyclesDoneT() (SekCycleCntT+SekCyclesDone()) // total nuber of cycles done for this rom\r
145\r
146#define SekEndRun(after) { \\r
147 SekCycleCnt -= SekCyclesLeft - (after); \\r
148 if (SekCycleCnt < 0) SekCycleCnt = 0; \\r
149 SekEndTimeslice(after); \\r
150}\r
151\r
152#define SekEndRunS68k(after) { \\r
153 SekCycleCntS68k -= SekCyclesLeftS68k - (after); \\r
154 if (SekCycleCntS68k < 0) SekCycleCntS68k = 0; \\r
155 SekEndTimesliceS68k(after); \\r
156}\r
157\r
158extern int SekCycleCntS68k;\r
159extern int SekCycleAimS68k;\r
160\r
161#define SekCyclesResetS68k() { \\r
162 SekCycleCntS68k-=SekCycleAimS68k; \\r
163 SekCycleAimS68k=0; \\r
164}\r
165#define SekCyclesDoneS68k() (SekCycleAimS68k-SekCyclesLeftS68k)\r
166\r
167#ifdef EMU_CORE_DEBUG\r
168extern int dbg_irq_level;\r
169#undef SekEndTimeslice\r
170#undef SekCyclesBurn\r
171#undef SekEndRun\r
172#undef SekInterrupt\r
173#define SekEndTimeslice(c)\r
174#define SekCyclesBurn(c) c\r
175#define SekEndRun(c)\r
176#define SekInterrupt(irq) dbg_irq_level=irq\r
177#endif\r
178\r
179// ----------------------- Z80 CPU -----------------------\r
180\r
181#if defined(_USE_MZ80)\r
182#include "../cpu/mz80/mz80.h"\r
183\r
184#define z80_run(cycles) { mz80GetElapsedTicks(1); mz80_run(cycles) }\r
185#define z80_run_nr(cycles) mz80_run(cycles)\r
186#define z80_int() mz80int(0)\r
187\r
188#elif defined(_USE_DRZ80)\r
189#include "../cpu/DrZ80/drz80.h"\r
190\r
191extern struct DrZ80 drZ80;\r
192\r
193#define z80_run(cycles) ((cycles) - DrZ80Run(&drZ80, cycles))\r
194#define z80_run_nr(cycles) DrZ80Run(&drZ80, cycles)\r
195#define z80_int() drZ80.Z80_IRQ = 1\r
196\r
197#define z80_cyclesLeft drZ80.cycles\r
198#define z80_pc() (drZ80.Z80PC - drZ80.Z80PC_BASE)\r
199\r
200#elif defined(_USE_CZ80)\r
201#include "../cpu/cz80/cz80.h"\r
202\r
203#define z80_run(cycles) Cz80_Exec(&CZ80, cycles)\r
204#define z80_run_nr(cycles) Cz80_Exec(&CZ80, cycles)\r
205#define z80_int() Cz80_Set_IRQ(&CZ80, 0, HOLD_LINE)\r
206\r
207#define z80_cyclesLeft (CZ80.ICount - CZ80.ExtraCycles)\r
208#define z80_pc() Cz80_Get_Reg(&CZ80, CZ80_PC)\r
209\r
210#else\r
211\r
212#define z80_run(cycles) (cycles)\r
213#define z80_run_nr(cycles)\r
214#define z80_int()\r
215\r
216#endif\r
217\r
218extern int z80stopCycle; /* in 68k cycles */\r
219extern int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */\r
220extern int z80_cycle_aim;\r
221extern int z80_scanline;\r
222extern int z80_scanline_cycles; /* cycles done until z80_scanline */\r
223\r
224#define z80_resetCycles() \\r
225 z80_cycle_cnt = z80_cycle_aim = z80_scanline = z80_scanline_cycles = 0;\r
226\r
227#define z80_cyclesDone() \\r
228 (z80_cycle_aim - z80_cyclesLeft)\r
229\r
230#define cycles_68k_to_z80(x) ((x)*957 >> 11)\r
231\r
232// ----------------------- SH2 CPU -----------------------\r
233\r
234#include "cpu/sh2/sh2.h"\r
235\r
236extern SH2 sh2s[2];\r
237#define msh2 sh2s[0]\r
238#define ssh2 sh2s[1]\r
239\r
240#ifndef DRC_SH2\r
241# define ash2_end_run(after) if (sh2->icount > (after)) sh2->icount = after\r
242# define ash2_cycles_done() (sh2->cycles_aim - sh2->icount)\r
243#else\r
244# define ash2_end_run(after) { \\r
245 if ((sh2->sr >> 12) > (after)) \\r
246 { sh2->sr &= 0xfff; sh2->sr |= (after) << 12; } \\r
247}\r
248# define ash2_cycles_done() (sh2->cycles_aim - (sh2->sr >> 12))\r
249#endif\r
250\r
251//#define sh2_pc(c) (c) ? ssh2.ppc : msh2.ppc\r
252#define sh2_pc(c) (c) ? ssh2.pc : msh2.pc\r
253#define sh2_reg(c, x) (c) ? ssh2.r[x] : msh2.r[x]\r
254#define sh2_gbr(c) (c) ? ssh2.gbr : msh2.gbr\r
255#define sh2_vbr(c) (c) ? ssh2.vbr : msh2.vbr\r
256#define sh2_sr(c) (((c) ? ssh2.sr : msh2.sr) & 0xfff)\r
257\r
258#define sh2_set_gbr(c, v) \\r
259 { if (c) ssh2.gbr = v; else msh2.gbr = v; }\r
260#define sh2_set_vbr(c, v) \\r
261 { if (c) ssh2.vbr = v; else msh2.vbr = v; }\r
262\r
263// ---------------------------------------------------------\r
264\r
265// main oscillator clock which controls timing\r
266#define OSC_NTSC 53693100\r
267#define OSC_PAL 53203424\r
268\r
269struct PicoVideo\r
270{\r
271 unsigned char reg[0x20];\r
272 unsigned int command; // 32-bit Command\r
273 unsigned char pending; // 1 if waiting for second half of 32-bit command\r
274 unsigned char type; // Command type (v/c/vsram read/write)\r
275 unsigned short addr; // Read/Write address\r
276 int status; // Status bits\r
277 unsigned char pending_ints; // pending interrupts: ??VH????\r
278 signed char lwrite_cnt; // VDP write count during active display line\r
279 unsigned short v_counter; // V-counter\r
280 unsigned char pad[0x10];\r
281};\r
282\r
283struct PicoMisc\r
284{\r
285 unsigned char rotate;\r
286 unsigned char z80Run;\r
287 unsigned char padTHPhase[2]; // 02 phase of gamepad TH switches\r
288 unsigned short scanline; // 04 0 to 261||311\r
289 char dirtyPal; // 06 Is the palette dirty (1 - change @ this frame, 2 - some time before)\r
290 unsigned char hardware; // 07 Hardware value for country\r
291 unsigned char pal; // 08 1=PAL 0=NTSC\r
292 unsigned char sram_reg; // 09 SRAM reg. See SRR_* below\r
293 unsigned short z80_bank68k; // 0a\r
294 unsigned short pad0;\r
295 unsigned char pad1;\r
296 unsigned char z80_reset; // 0f z80 reset held\r
297 unsigned char padDelay[2]; // 10 gamepad phase time outs, so we count a delay\r
298 unsigned short eeprom_addr; // EEPROM address register\r
299 unsigned char eeprom_cycle; // EEPROM cycle number\r
300 unsigned char eeprom_slave; // EEPROM slave word for X24C02 and better SRAMs\r
301 unsigned char eeprom_status;\r
302 unsigned char pad2;\r
303 unsigned short dma_xfers; // 18\r
304 unsigned char eeprom_wb[2]; // EEPROM latch/write buffer\r
305 unsigned int frame_count; // 1c for movies and idle det\r
306};\r
307\r
308// some assembly stuff depend on these, do not touch!\r
309struct Pico\r
310{\r
311 unsigned char ram[0x10000]; // 0x00000 scratch ram\r
312 union { // vram is byteswapped for easier reads when drawing\r
313 unsigned short vram[0x8000]; // 0x10000\r
314 unsigned char vramb[0x4000]; // VRAM in SMS mode\r
315 };\r
316 unsigned char zram[0x2000]; // 0x20000 Z80 ram\r
317 unsigned char ioports[0x10];\r
318 unsigned char sms_io_ctl;\r
319 unsigned char pad[0xef]; // unused\r
320 unsigned short cram[0x40]; // 0x22100\r
321 unsigned short vsram[0x40]; // 0x22180\r
322\r
323 unsigned char *rom; // 0x22200\r
324 unsigned int romsize; // 0x22204\r
325\r
326 struct PicoMisc m;\r
327 struct PicoVideo video;\r
328};\r
329\r
330// sram\r
331#define SRR_MAPPED (1 << 0)\r
332#define SRR_READONLY (1 << 1)\r
333\r
334#define SRF_ENABLED (1 << 0)\r
335#define SRF_EEPROM (1 << 1)\r
336\r
337struct PicoSRAM\r
338{\r
339 unsigned char *data; // actual data\r
340 unsigned int start; // start address in 68k address space\r
341 unsigned int end;\r
342 unsigned char flags; // 0c: SRF_*\r
343 unsigned char unused2;\r
344 unsigned char changed;\r
345 unsigned char eeprom_type; // eeprom type: 0: 7bit (24C01), 2: 2 addr words (X24C02+), 3: 3 addr words\r
346 unsigned char unused3;\r
347 unsigned char eeprom_bit_cl; // bit number for cl\r
348 unsigned char eeprom_bit_in; // bit number for in\r
349 unsigned char eeprom_bit_out; // bit number for out\r
350 unsigned int size;\r
351};\r
352\r
353// MCD\r
354#include "cd/cd_sys.h"\r
355#include "cd/LC89510.h"\r
356#include "cd/gfx_cd.h"\r
357\r
358struct mcd_pcm\r
359{\r
360 unsigned char control; // reg7\r
361 unsigned char enabled; // reg8\r
362 unsigned char cur_ch;\r
363 unsigned char bank;\r
364 int pad1;\r
365\r
366 struct pcm_chan // 08, size 0x10\r
367 {\r
368 unsigned char regs[8];\r
369 unsigned int addr; // .08: played sample address\r
370 int pad;\r
371 } ch[8];\r
372};\r
373\r
374struct mcd_misc\r
375{\r
376 unsigned short hint_vector;\r
377 unsigned char busreq;\r
378 unsigned char s68k_pend_ints;\r
379 unsigned int state_flags; // 04: emu state: reset_pending\r
380 unsigned int counter75hz;\r
381 unsigned int pad0;\r
382 int timer_int3; // 10\r
383 unsigned int timer_stopwatch;\r
384 unsigned char bcram_reg; // 18: battery-backed RAM cart register\r
385 unsigned char pad2;\r
386 unsigned short pad3;\r
387 int pad[9];\r
388};\r
389\r
390typedef struct\r
391{\r
392 unsigned char bios[0x20000]; // 000000: 128K\r
393 union { // 020000: 512K\r
394 unsigned char prg_ram[0x80000];\r
395 unsigned char prg_ram_b[4][0x20000];\r
396 };\r
397 union { // 0a0000: 256K\r
398 struct {\r
399 unsigned char word_ram2M[0x40000];\r
400 unsigned char unused0[0x20000];\r
401 };\r
402 struct {\r
403 unsigned char unused1[0x20000];\r
404 unsigned char word_ram1M[2][0x20000];\r
405 };\r
406 };\r
407 union { // 100000: 64K\r
408 unsigned char pcm_ram[0x10000];\r
409 unsigned char pcm_ram_b[0x10][0x1000];\r
410 };\r
411 unsigned char s68k_regs[0x200]; // 110000: GA, not CPU regs\r
412 unsigned char bram[0x2000]; // 110200: 8K\r
413 struct mcd_misc m; // 112200: misc\r
414 struct mcd_pcm pcm; // 112240:\r
415 _scd_toc TOC; // not to be saved\r
416 CDD cdd;\r
417 CDC cdc;\r
418 _scd scd;\r
419 Rot_Comp rot_comp;\r
420} mcd_state;\r
421\r
422// XXX: this will need to be reworked for cart+cd support.\r
423#define Pico_mcd ((mcd_state *)Pico.rom)\r
424\r
425// 32X\r
426#define P32XS_FM (1<<15)\r
427#define P32XS_REN (1<< 7)\r
428#define P32XS_nRES (1<< 1)\r
429#define P32XS_ADEN (1<< 0)\r
430#define P32XS2_ADEN (1<< 9)\r
431#define P32XS_FULL (1<< 7) // DREQ FIFO full\r
432#define P32XS_68S (1<< 2)\r
433#define P32XS_DMA (1<< 1)\r
434#define P32XS_RV (1<< 0)\r
435\r
436#define P32XV_nPAL (1<<15) // VDP\r
437#define P32XV_PRI (1<< 7)\r
438#define P32XV_Mx (3<< 0) // display mode mask\r
439\r
440#define P32XV_VBLK (1<<15)\r
441#define P32XV_HBLK (1<<14)\r
442#define P32XV_PEN (1<<13)\r
443#define P32XV_nFEN (1<< 1)\r
444#define P32XV_FS (1<< 0)\r
445\r
446#define P32XP_FULL (1<<15) // PWM\r
447#define P32XP_EMPTY (1<<14)\r
448\r
449#define P32XF_68KPOLL (1 << 0)\r
450#define P32XF_MSH2POLL (1 << 1)\r
451#define P32XF_SSH2POLL (1 << 2)\r
452#define P32XF_68KVPOLL (1 << 3)\r
453#define P32XF_MSH2VPOLL (1 << 4)\r
454#define P32XF_SSH2VPOLL (1 << 5)\r
455\r
456#define P32XI_VRES (1 << 14/2) // IRL/2\r
457#define P32XI_VINT (1 << 12/2)\r
458#define P32XI_HINT (1 << 10/2)\r
459#define P32XI_CMD (1 << 8/2)\r
460#define P32XI_PWM (1 << 6/2)\r
461\r
462// peripheral reg access\r
463#define PREG8(regs,offs) ((unsigned char *)regs)[offs ^ 3]\r
464\r
465// real one is 4*2, but we use more because we don't lockstep\r
466#define DMAC_FIFO_LEN (4*4)\r
467#define PWM_BUFF_LEN 1024 // in one channel samples\r
468\r
469#define SH2_DRCBLK_RAM_SHIFT 1\r
470#define SH2_DRCBLK_DA_SHIFT 1\r
471\r
472#define SH2_WRITE_SHIFT 25\r
473\r
474struct Pico32x\r
475{\r
476 unsigned short regs[0x20];\r
477 unsigned short vdp_regs[0x10];\r
478 unsigned short sh2_regs[3];\r
479 unsigned char pending_fb;\r
480 unsigned char dirty_pal;\r
481 unsigned int emu_flags;\r
482 unsigned char sh2irq_mask[2];\r
483 unsigned char sh2irqi[2]; // individual\r
484 unsigned int sh2irqs; // common irqs\r
485 unsigned short dmac_fifo[DMAC_FIFO_LEN];\r
486 unsigned int dmac_ptr;\r
487 unsigned int pwm_irq_sample_cnt;\r
488};\r
489\r
490struct Pico32xMem\r
491{\r
492 unsigned char sdram[0x40000];\r
493#ifdef DRC_SH2\r
494 unsigned short drcblk_ram[1 << (18 - SH2_DRCBLK_RAM_SHIFT)];\r
495#endif\r
496 unsigned short dram[2][0x20000/2]; // AKA fb\r
497 unsigned char m68k_rom[0x10000]; // 0x100; using M68K_BANK_SIZE\r
498 unsigned char data_array[2][0x1000]; // cache in SH2s (can be used as RAM)\r
499#ifdef DRC_SH2\r
500 unsigned short drcblk_da[2][1 << (12 - SH2_DRCBLK_DA_SHIFT)];\r
501#endif\r
502 unsigned char sh2_rom_m[0x800];\r
503 unsigned char sh2_rom_s[0x400];\r
504 unsigned short pal[0x100];\r
505 unsigned short pal_native[0x100]; // converted to native (for renderer)\r
506 unsigned int sh2_peri_regs[2][0x200/4]; // periphereal regs of SH2s\r
507 signed short pwm[2*PWM_BUFF_LEN]; // PWM buffer for current frame\r
508};\r
509\r
510// area.c\r
511PICO_INTERNAL void PicoAreaPackCpu(unsigned char *cpu, int is_sub);\r
512PICO_INTERNAL void PicoAreaUnpackCpu(unsigned char *cpu, int is_sub);\r
513extern void (*PicoLoadStateHook)(void);\r
514\r
515// cd/area.c\r
516PICO_INTERNAL int PicoCdSaveState(void *file);\r
517PICO_INTERNAL int PicoCdLoadState(void *file);\r
518\r
519typedef struct {\r
520 int chunk;\r
521 int size;\r
522 void *ptr;\r
523} carthw_state_chunk;\r
524extern carthw_state_chunk *carthw_chunks;\r
525#define CHUNK_CARTHW 64\r
526\r
527// area.c\r
528typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);\r
529typedef size_t (areaeof)(void *file);\r
530typedef int (areaseek)(void *file, long offset, int whence);\r
531typedef int (areaclose)(void *file);\r
532extern arearw *areaRead; // external read and write function pointers for\r
533extern arearw *areaWrite; // gzip save state ability\r
534extern areaeof *areaEof;\r
535extern areaseek *areaSeek;\r
536extern areaclose *areaClose;\r
537\r
538// cart.c\r
539void Byteswap(void *dst, const void *src, int len);\r
540extern void (*PicoCartMemSetup)(void);\r
541extern void (*PicoCartUnloadHook)(void);\r
542\r
543// debug.c\r
544int CM_compareRun(int cyc, int is_sub);\r
545\r
546// draw.c\r
547PICO_INTERNAL void PicoFrameStart(void);\r
548void PicoDrawSync(int to, int blank_last_line);\r
549void BackFill(int reg7, int sh);\r
550void FinalizeLineRGB555(int sh, int line);\r
551extern int DrawScanline;\r
552#define MAX_LINE_SPRITES 29\r
553extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];\r
554\r
555// draw2.c\r
556PICO_INTERNAL void PicoFrameFull();\r
557\r
558// mode4.c\r
559void PicoFrameStartMode4(void);\r
560void PicoLineMode4(int line);\r
561void PicoDoHighPal555M4(void);\r
562void PicoDrawSetColorFormatMode4(int which);\r
563\r
564// memory.c\r
565PICO_INTERNAL void PicoMemSetup(void);\r
566unsigned int PicoRead8_io(unsigned int a);\r
567unsigned int PicoRead16_io(unsigned int a);\r
568void PicoWrite8_io(unsigned int a, unsigned int d);\r
569void PicoWrite16_io(unsigned int a, unsigned int d);\r
570\r
571// pico/memory.c\r
572PICO_INTERNAL void PicoMemSetupPico(void);\r
573\r
574// cd/memory.c\r
575PICO_INTERNAL void PicoMemSetupCD(void);\r
576void PicoMemStateLoaded(void);\r
577\r
578// pico.c\r
579extern struct Pico Pico;\r
580extern struct PicoSRAM SRam;\r
581extern int PicoPadInt[2];\r
582extern int emustatus;\r
583extern int scanlines_total;\r
584extern void (*PicoResetHook)(void);\r
585extern void (*PicoLineHook)(void);\r
586PICO_INTERNAL int CheckDMA(void);\r
587PICO_INTERNAL void PicoDetectRegion(void);\r
588PICO_INTERNAL void PicoSyncZ80(int m68k_cycles_done);\r
589\r
590// cd/pico.c\r
591PICO_INTERNAL void PicoInitMCD(void);\r
592PICO_INTERNAL void PicoExitMCD(void);\r
593PICO_INTERNAL void PicoPowerMCD(void);\r
594PICO_INTERNAL int PicoResetMCD(void);\r
595PICO_INTERNAL void PicoFrameMCD(void);\r
596\r
597// pico/pico.c\r
598PICO_INTERNAL void PicoInitPico(void);\r
599PICO_INTERNAL void PicoReratePico(void);\r
600\r
601// pico/xpcm.c\r
602PICO_INTERNAL void PicoPicoPCMUpdate(short *buffer, int length, int stereo);\r
603PICO_INTERNAL void PicoPicoPCMReset(void);\r
604PICO_INTERNAL void PicoPicoPCMRerate(int xpcm_rate);\r
605\r
606// sek.c\r
607PICO_INTERNAL void SekInit(void);\r
608PICO_INTERNAL int SekReset(void);\r
609PICO_INTERNAL void SekState(int *data);\r
610PICO_INTERNAL void SekSetRealTAS(int use_real);\r
611void SekStepM68k(void);\r
612void SekInitIdleDet(void);\r
613void SekFinishIdleDet(void);\r
614\r
615// cd/sek.c\r
616PICO_INTERNAL void SekInitS68k(void);\r
617PICO_INTERNAL int SekResetS68k(void);\r
618PICO_INTERNAL int SekInterruptS68k(int irq);\r
619\r
620// sound/sound.c\r
621PICO_INTERNAL void cdda_start_play();\r
622extern short cdda_out_buffer[2*1152];\r
623extern int PsndLen_exc_cnt;\r
624extern int PsndLen_exc_add;\r
625extern int timer_a_next_oflow, timer_a_step; // in z80 cycles\r
626extern int timer_b_next_oflow, timer_b_step;\r
627\r
628void ym2612_sync_timers(int z80_cycles, int mode_old, int mode_new);\r
629void ym2612_pack_state(void);\r
630void ym2612_unpack_state(void);\r
631\r
632#define TIMER_NO_OFLOW 0x70000000\r
633// tA = 72 * (1024 - NA) / M\r
634#define TIMER_A_TICK_ZCYCLES 17203\r
635// tB = 1152 * (256 - NA) / M\r
636#define TIMER_B_TICK_ZCYCLES 262800 // 275251 broken, see Dai Makaimura\r
637\r
638#define timers_cycle() \\r
639 if (timer_a_next_oflow > 0 && timer_a_next_oflow < TIMER_NO_OFLOW) \\r
640 timer_a_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
641 if (timer_b_next_oflow > 0 && timer_b_next_oflow < TIMER_NO_OFLOW) \\r
642 timer_b_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
643 ym2612_sync_timers(0, ym2612.OPN.ST.mode, ym2612.OPN.ST.mode);\r
644\r
645#define timers_reset() \\r
646 timer_a_next_oflow = timer_b_next_oflow = TIMER_NO_OFLOW; \\r
647 timer_a_step = TIMER_A_TICK_ZCYCLES * 1024; \\r
648 timer_b_step = TIMER_B_TICK_ZCYCLES * 256;\r
649\r
650\r
651// videoport.c\r
652PICO_INTERNAL_ASM void PicoVideoWrite(unsigned int a,unsigned short d);\r
653PICO_INTERNAL_ASM unsigned int PicoVideoRead(unsigned int a);\r
654PICO_INTERNAL_ASM unsigned int PicoVideoRead8(unsigned int a);\r
655extern int (*PicoDmaHook)(unsigned int source, int len, unsigned short **srcp, unsigned short **limitp);\r
656\r
657// misc.c\r
658PICO_INTERNAL_ASM void memcpy16(unsigned short *dest, unsigned short *src, int count);\r
659PICO_INTERNAL_ASM void memcpy16bswap(unsigned short *dest, void *src, int count);\r
660PICO_INTERNAL_ASM void memcpy32(int *dest, int *src, int count); // 32bit word count\r
661PICO_INTERNAL_ASM void memset32(int *dest, int c, int count);\r
662\r
663// eeprom.c\r
664void EEPROM_write8(unsigned int a, unsigned int d);\r
665void EEPROM_write16(unsigned int d);\r
666unsigned int EEPROM_read(void);\r
667\r
668// z80 functionality wrappers\r
669PICO_INTERNAL void z80_init(void);\r
670PICO_INTERNAL void z80_pack(unsigned char *data);\r
671PICO_INTERNAL void z80_unpack(unsigned char *data);\r
672PICO_INTERNAL void z80_reset(void);\r
673PICO_INTERNAL void z80_exit(void);\r
674\r
675// cd/misc.c\r
676PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);\r
677PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);\r
678\r
679// cd/buffering.c\r
680PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);\r
681\r
682// sound/sound.c\r
683PICO_INTERNAL void PsndReset(void);\r
684PICO_INTERNAL void PsndDoDAC(int line_to);\r
685PICO_INTERNAL void PsndClear(void);\r
686PICO_INTERNAL void PsndGetSamples(int y);\r
687PICO_INTERNAL void PsndGetSamplesMS(void);\r
688extern int PsndDacLine;\r
689\r
690// sms.c\r
691void PicoPowerMS(void);\r
692void PicoResetMS(void);\r
693void PicoMemSetupMS(void);\r
694void PicoFrameMS(void);\r
695void PicoFrameDrawOnlyMS(void);\r
696\r
697// 32x/32x.c\r
698extern struct Pico32x Pico32x;\r
699void Pico32xInit(void);\r
700void PicoPower32x(void);\r
701void PicoReset32x(void);\r
702void Pico32xStartup(void);\r
703void PicoUnload32x(void);\r
704void PicoFrame32x(void);\r
705void p32x_update_irls(void);\r
706void p32x_reset_sh2s(void);\r
707\r
708// 32x/memory.c\r
709struct Pico32xMem *Pico32xMem;\r
710unsigned int PicoRead8_32x(unsigned int a);\r
711unsigned int PicoRead16_32x(unsigned int a);\r
712void PicoWrite8_32x(unsigned int a, unsigned int d);\r
713void PicoWrite16_32x(unsigned int a, unsigned int d);\r
714void PicoMemSetup32x(void);\r
715void Pico32xSwapDRAM(int b);\r
716void p32x_poll_event(int cpu_mask, int is_vdp);\r
717\r
718// 32x/draw.c\r
719void FinalizeLine32xRGB555(int sh, int line);\r
720\r
721// 32x/pwm.c\r
722unsigned int p32x_pwm_read16(unsigned int a);\r
723void p32x_pwm_write16(unsigned int a, unsigned int d);\r
724void p32x_pwm_update(int *buf32, int length, int stereo);\r
725void p32x_timers_do(int new_line);\r
726void p32x_timers_recalc(void);\r
727extern int pwm_frame_smp_cnt;\r
728\r
729/* avoid dependency on newer glibc */\r
730static __inline int isspace_(int c)\r
731{\r
732 return (0x09 <= c && c <= 0x0d) || c == ' ';\r
733}\r
734\r
735#ifndef ARRAY_SIZE\r
736#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))\r
737#endif\r
738\r
739// emulation event logging\r
740#ifndef EL_LOGMASK\r
741#define EL_LOGMASK 0\r
742#endif\r
743\r
744#define EL_HVCNT 0x00000001 /* hv counter reads */\r
745#define EL_SR 0x00000002 /* SR reads */\r
746#define EL_INTS 0x00000004 /* ints and acks */\r
747#define EL_YMTIMER 0x00000008 /* ym2612 timer stuff */\r
748#define EL_INTSW 0x00000010 /* log irq switching on/off */\r
749#define EL_ASVDP 0x00000020 /* VDP accesses during active scan */\r
750#define EL_VDPDMA 0x00000040 /* VDP DMA transfers and their timing */\r
751#define EL_BUSREQ 0x00000080 /* z80 busreq r/w or reset w */\r
752#define EL_Z80BNK 0x00000100 /* z80 i/o through bank area */\r
753#define EL_SRAMIO 0x00000200 /* sram i/o */\r
754#define EL_EEPROM 0x00000400 /* eeprom debug */\r
755#define EL_UIO 0x00000800 /* unmapped i/o */\r
756#define EL_IO 0x00001000 /* all i/o */\r
757#define EL_CDPOLL 0x00002000 /* MCD: log poll detection */\r
758#define EL_SVP 0x00004000 /* SVP stuff */\r
759#define EL_PICOHW 0x00008000 /* Pico stuff */\r
760#define EL_IDLE 0x00010000 /* idle loop det. */\r
761#define EL_CDREGS 0x00020000 /* MCD: register access */\r
762#define EL_CDREG3 0x00040000 /* MCD: register 3 only */\r
763#define EL_32X 0x00080000\r
764#define EL_PWM 0x00100000 /* 32X PWM stuff (LOTS of output) */\r
765\r
766#define EL_STATUS 0x40000000 /* status messages */\r
767#define EL_ANOMALY 0x80000000 /* some unexpected conditions (during emulation) */\r
768\r
769#if EL_LOGMASK\r
770extern void lprintf(const char *fmt, ...);\r
771#define elprintf(w,f,...) \\r
772{ \\r
773 if ((w) & EL_LOGMASK) \\r
774 lprintf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__); \\r
775}\r
776#elif defined(_MSC_VER)\r
777#define elprintf\r
778#else\r
779#define elprintf(w,f,...)\r
780#endif\r
781\r
782// profiling\r
783#ifdef PPROF\r
784#include <platform/linux/pprof.h>\r
785#else\r
786#define pprof_init()\r
787#define pprof_finish()\r
788#define pprof_start(x)\r
789#define pprof_end(...)\r
790#define pprof_end_sub(...)\r
791#endif\r
792\r
793// misc\r
794#ifdef _MSC_VER\r
795#define cdprintf\r
796#else\r
797#define cdprintf(x...)\r
798#endif\r
799\r
800#ifdef __i386__\r
801#define REGPARM(x) __attribute__((regparm(x)))\r
802#else\r
803#define REGPARM(x)\r
804#endif\r
805\r
806#ifdef __GNUC__\r
807#define NOINLINE __attribute__((noinline))\r
808#else\r
809#define NOINLINE\r
810#endif\r
811\r
812#ifdef __cplusplus\r
813} // End of extern "C"\r
814#endif\r
815\r
816#endif // PICO_INTERNAL_INCLUDED\r
817\r