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[picodrive.git] / Pico / PicoInt.h
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eff55556 1// Pico Library - Internal Header File\r
cc68a136 2\r
3// (c) Copyright 2004 Dave, All rights reserved.\r
4936aac1 4// (c) Copyright 2006-2008 Grazvydas "notaz" Ignotas, all rights reserved.\r
cc68a136 5// Free for non-commercial use.\r
6\r
7// For commercial use, separate licencing terms must be obtained.\r
8\r
eff55556 9#ifndef PICO_INTERNAL_INCLUDED\r
10#define PICO_INTERNAL_INCLUDED\r
cc68a136 11\r
12#include <stdio.h>\r
13#include <stdlib.h>\r
14#include <string.h>\r
15#include "Pico.h"\r
f53f286a 16#include "carthw/carthw.h"\r
cc68a136 17\r
89fa852d 18//\r
19#define USE_POLL_DETECT\r
20\r
eff55556 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
cc68a136 27\r
70357ce5 28// to select core, define EMU_C68K, EMU_M68K or EMU_F68K in your makefile or project\r
cc68a136 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
3aa1e148 38extern struct Cyclone PicoCpuCM68k, PicoCpuCS68k;\r
39#define SekCyclesLeftNoMCD PicoCpuCM68k.cycles // cycles left for this run\r
7336a99a 40#define SekCyclesLeft \\r
602133e1 41 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
7a1f6e45 42#define SekCyclesLeftS68k \\r
602133e1 43 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuCS68k.cycles)\r
3aa1e148 44#define SekSetCyclesLeftNoMCD(c) PicoCpuCM68k.cycles=c\r
7336a99a 45#define SekSetCyclesLeft(c) { \\r
602133e1 46 if ((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) SekCycleCnt=SekCycleAim-(c); else SekSetCyclesLeftNoMCD(c); \\r
7336a99a 47}\r
3aa1e148 48#define SekPc (PicoCpuCM68k.pc-PicoCpuCM68k.membase)\r
49#define SekPcS68k (PicoCpuCS68k.pc-PicoCpuCS68k.membase)\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
ca61ee42 52#define SekIsStoppedS68k() (PicoCpuCS68k.state_flags&1)\r
03e4f2a3 53#define SekShouldInterrupt (PicoCpuCM68k.irq > (PicoCpuCM68k.srh&7))\r
b542be46 54\r
55#define SekInterrupt(i) PicoCpuCM68k.irq=i\r
56\r
03e4f2a3 57#ifdef EMU_M68K\r
58#define EMU_CORE_DEBUG\r
59#endif\r
cc68a136 60#endif\r
61\r
70357ce5 62#ifdef EMU_F68K\r
63#include "../cpu/fame/fame.h"\r
b542be46 64extern M68K_CONTEXT PicoCpuFM68k, PicoCpuFS68k;\r
3aa1e148 65#define SekCyclesLeftNoMCD PicoCpuFM68k.io_cycle_counter\r
70357ce5 66#define SekCyclesLeft \\r
602133e1 67 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
70357ce5 68#define SekCyclesLeftS68k \\r
602133e1 69 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuFS68k.io_cycle_counter)\r
3aa1e148 70#define SekSetCyclesLeftNoMCD(c) PicoCpuFM68k.io_cycle_counter=c\r
70357ce5 71#define SekSetCyclesLeft(c) { \\r
602133e1 72 if ((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) SekCycleCnt=SekCycleAim-(c); else SekSetCyclesLeftNoMCD(c); \\r
70357ce5 73}\r
03e4f2a3 74#define SekPc fm68k_get_pc(&PicoCpuFM68k)\r
75#define SekPcS68k fm68k_get_pc(&PicoCpuFS68k)\r
70357ce5 76#define SekSetStop(x) { \\r
03e4f2a3 77 PicoCpuFM68k.execinfo &= ~FM68K_HALTED; \\r
78 if (x) { PicoCpuFM68k.execinfo |= FM68K_HALTED; PicoCpuFM68k.io_cycle_counter = 0; } \\r
70357ce5 79}\r
80#define SekSetStopS68k(x) { \\r
03e4f2a3 81 PicoCpuFS68k.execinfo &= ~FM68K_HALTED; \\r
82 if (x) { PicoCpuFS68k.execinfo |= FM68K_HALTED; PicoCpuFS68k.io_cycle_counter = 0; } \\r
70357ce5 83}\r
ca61ee42 84#define SekIsStoppedS68k() (PicoCpuFS68k.execinfo&FM68K_HALTED)\r
03e4f2a3 85#define SekShouldInterrupt fm68k_would_interrupt()\r
b542be46 86\r
87#define SekInterrupt(irq) PicoCpuFM68k.interrupts[0]=irq\r
88\r
03e4f2a3 89#ifdef EMU_M68K\r
90#define EMU_CORE_DEBUG\r
91#endif\r
cc68a136 92#endif\r
93\r
94#ifdef EMU_M68K\r
95#include "../cpu/musashi/m68kcpu.h"\r
3aa1e148 96extern m68ki_cpu_core PicoCpuMM68k, PicoCpuMS68k;\r
cc68a136 97#ifndef SekCyclesLeft\r
3aa1e148 98#define SekCyclesLeftNoMCD PicoCpuMM68k.cyc_remaining_cycles\r
7336a99a 99#define SekCyclesLeft \\r
602133e1 100 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
7a1f6e45 101#define SekCyclesLeftS68k \\r
602133e1 102 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuMS68k.cyc_remaining_cycles)\r
7336a99a 103#define SekSetCyclesLeftNoMCD(c) SET_CYCLES(c)\r
104#define SekSetCyclesLeft(c) { \\r
602133e1 105 if ((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) SekCycleCnt=SekCycleAim-(c); else SET_CYCLES(c); \\r
7336a99a 106}\r
3aa1e148 107#define SekPc m68k_get_reg(&PicoCpuMM68k, M68K_REG_PC)\r
108#define SekPcS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_PC)\r
7a1f6e45 109#define SekSetStop(x) { \\r
3aa1e148 110 if(x) { SET_CYCLES(0); PicoCpuMM68k.stopped=STOP_LEVEL_STOP; } \\r
111 else PicoCpuMM68k.stopped=0; \\r
7a1f6e45 112}\r
113#define SekSetStopS68k(x) { \\r
3aa1e148 114 if(x) { SET_CYCLES(0); PicoCpuMS68k.stopped=STOP_LEVEL_STOP; } \\r
115 else PicoCpuMS68k.stopped=0; \\r
7a1f6e45 116}\r
ca61ee42 117#define SekIsStoppedS68k() (PicoCpuMS68k.stopped==STOP_LEVEL_STOP)\r
03e4f2a3 118#define SekShouldInterrupt (CPU_INT_LEVEL > FLAG_INT_MASK)\r
b542be46 119\r
71de3cd9 120#define SekInterrupt(irq) { \\r
b542be46 121 void *oldcontext = m68ki_cpu_p; \\r
122 m68k_set_context(&PicoCpuMM68k); \\r
123 m68k_set_irq(irq); \\r
124 m68k_set_context(oldcontext); \\r
125}\r
126\r
cc68a136 127#endif\r
128#endif\r
129\r
130extern int SekCycleCnt; // cycles done in this frame\r
131extern int SekCycleAim; // cycle aim\r
132extern unsigned int SekCycleCntT; // total cycle counter, updated once per frame\r
133\r
b8cbd802 134#define SekCyclesReset() { \\r
135 SekCycleCntT+=SekCycleAim; \\r
136 SekCycleCnt-=SekCycleAim; \\r
137 SekCycleAim=0; \\r
138}\r
cc68a136 139#define SekCyclesBurn(c) SekCycleCnt+=c\r
4b9c5888 140#define SekCyclesDone() (SekCycleAim-SekCyclesLeft) // number of cycles done in this frame (can be checked anywhere)\r
cc68a136 141#define SekCyclesDoneT() (SekCycleCntT+SekCyclesDone()) // total nuber of cycles done for this rom\r
142\r
143#define SekEndRun(after) { \\r
144 SekCycleCnt -= SekCyclesLeft - after; \\r
145 if(SekCycleCnt < 0) SekCycleCnt = 0; \\r
146 SekSetCyclesLeft(after); \\r
147}\r
148\r
149extern int SekCycleCntS68k;\r
150extern int SekCycleAimS68k;\r
151\r
bf5fbbb4 152#define SekCyclesResetS68k() { \\r
153 SekCycleCntS68k-=SekCycleAimS68k; \\r
154 SekCycleAimS68k=0; \\r
155}\r
7a1f6e45 156#define SekCyclesDoneS68k() (SekCycleAimS68k-SekCyclesLeftS68k)\r
cc68a136 157\r
03e4f2a3 158#ifdef EMU_CORE_DEBUG\r
99464b62 159extern int dbg_irq_level;\r
2d0b15bb 160#undef SekSetCyclesLeftNoMCD\r
161#undef SekSetCyclesLeft\r
162#undef SekCyclesBurn\r
163#undef SekEndRun\r
99464b62 164#undef SekInterrupt\r
2d0b15bb 165#define SekSetCyclesLeftNoMCD(c)\r
166#define SekSetCyclesLeft(c)\r
2270612a 167#define SekCyclesBurn(c) c\r
2d0b15bb 168#define SekEndRun(c)\r
99464b62 169#define SekInterrupt(irq) dbg_irq_level=irq\r
2d0b15bb 170#endif\r
cc68a136 171\r
b542be46 172// ----------------------- Z80 CPU -----------------------\r
173\r
174#if defined(_USE_MZ80)\r
dca310c4 175#include "../cpu/mz80/mz80.h"\r
b542be46 176\r
4b9c5888 177#define z80_run(cycles) { mz80GetElapsedTicks(1); mz80_run(cycles) }\r
b542be46 178#define z80_run_nr(cycles) mz80_run(cycles)\r
179#define z80_int() mz80int(0)\r
b542be46 180\r
181#elif defined(_USE_DRZ80)\r
dca310c4 182#include "../cpu/DrZ80/drz80.h"\r
b542be46 183\r
184extern struct DrZ80 drZ80;\r
185\r
186#define z80_run(cycles) ((cycles) - DrZ80Run(&drZ80, cycles))\r
187#define z80_run_nr(cycles) DrZ80Run(&drZ80, cycles)\r
4936aac1 188#define z80_int() drZ80.Z80_IRQ = 1\r
4b9c5888 189\r
190#define z80_cyclesLeft drZ80.cycles\r
b542be46 191\r
192#elif defined(_USE_CZ80)\r
dca310c4 193#include "../cpu/cz80/cz80.h"\r
b542be46 194\r
195#define z80_run(cycles) Cz80_Exec(&CZ80, cycles)\r
196#define z80_run_nr(cycles) Cz80_Exec(&CZ80, cycles)\r
197#define z80_int() Cz80_Set_IRQ(&CZ80, 0, HOLD_LINE)\r
4b9c5888 198\r
199#define z80_cyclesLeft (CZ80.ICount - CZ80.ExtraCycles)\r
b542be46 200\r
201#else\r
202\r
203#define z80_run(cycles) (cycles)\r
204#define z80_run_nr(cycles)\r
205#define z80_int()\r
b542be46 206\r
207#endif\r
208\r
4b9c5888 209extern int z80stopCycle; /* in 68k cycles */\r
210extern int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */\r
211extern int z80_cycle_aim;\r
212extern int z80_scanline;\r
213extern int z80_scanline_cycles; /* cycles done until z80_scanline */\r
214\r
215#define z80_resetCycles() \\r
216 z80_cycle_cnt = z80_cycle_aim = z80_scanline = z80_scanline_cycles = 0;\r
217\r
218#define z80_cyclesDone() \\r
219 (z80_cycle_aim - z80_cyclesLeft)\r
220\r
221#define cycles_68k_to_z80(x) ((x)*957 >> 11)\r
222\r
cc68a136 223// ---------------------------------------------------------\r
224\r
225// main oscillator clock which controls timing\r
226#define OSC_NTSC 53693100\r
b8cbd802 227// seems to be accurate, see scans from http://www.hot.ee/tmeeco/\r
228#define OSC_PAL 53203424\r
cc68a136 229\r
230struct PicoVideo\r
231{\r
232 unsigned char reg[0x20];\r
b8cbd802 233 unsigned int command; // 32-bit Command\r
234 unsigned char pending; // 1 if waiting for second half of 32-bit command\r
235 unsigned char type; // Command type (v/c/vsram read/write)\r
236 unsigned short addr; // Read/Write address\r
237 int status; // Status bits\r
cc68a136 238 unsigned char pending_ints; // pending interrupts: ??VH????\r
b8cbd802 239 signed char lwrite_cnt; // VDP write count during active display line\r
9761a7d0 240 unsigned short v_counter; // V-counter\r
241 unsigned char pad[0x10];\r
cc68a136 242};\r
243\r
244struct PicoMisc\r
245{\r
246 unsigned char rotate;\r
247 unsigned char z80Run;\r
e5503e2f 248 unsigned char padTHPhase[2]; // 02 phase of gamepad TH switches\r
2aa27095 249 unsigned short scanline; // 04 0 to 261||311\r
e5503e2f 250 char dirtyPal; // 06 Is the palette dirty (1 - change @ this frame, 2 - some time before)\r
251 unsigned char hardware; // 07 Hardware value for country\r
252 unsigned char pal; // 08 1=PAL 0=NTSC\r
253 unsigned char sram_reg; // SRAM mode register. bit0: allow read? bit1: deny write? bit2: EEPROM? bit4: detected? (header or by access)\r
254 unsigned short z80_bank68k; // 0a\r
cc68a136 255 unsigned short z80_lastaddr; // this is for Z80 faking\r
256 unsigned char z80_fakeval;\r
bd613473 257 unsigned char z80_reset; // z80 reset held\r
e5503e2f 258 unsigned char padDelay[2]; // 10 gamepad phase time outs, so we count a delay\r
1dceadae 259 unsigned short eeprom_addr; // EEPROM address register\r
260 unsigned char eeprom_cycle; // EEPROM SRAM cycle number\r
261 unsigned char eeprom_slave; // EEPROM slave word for X24C02 and better SRAMs\r
721cd396 262 unsigned char prot_bytes[2]; // simple protection faking\r
053fd9b4 263 unsigned short dma_xfers; // 18\r
312e9ce1 264 unsigned char pad[2];\r
053fd9b4 265 unsigned int frame_count; // 1c for movies and idle det\r
cc68a136 266};\r
267\r
268// some assembly stuff depend on these, do not touch!\r
269struct Pico\r
270{\r
271 unsigned char ram[0x10000]; // 0x00000 scratch ram\r
272 unsigned short vram[0x8000]; // 0x10000\r
273 unsigned char zram[0x2000]; // 0x20000 Z80 ram\r
274 unsigned char ioports[0x10];\r
275 unsigned int pad[0x3c]; // unused\r
276 unsigned short cram[0x40]; // 0x22100\r
277 unsigned short vsram[0x40]; // 0x22180\r
278\r
279 unsigned char *rom; // 0x22200\r
280 unsigned int romsize; // 0x22204\r
281\r
282 struct PicoMisc m;\r
283 struct PicoVideo video;\r
284};\r
285\r
286// sram\r
287struct PicoSRAM\r
288{\r
4ff2d527 289 unsigned char *data; // actual data\r
290 unsigned int start; // start address in 68k address space\r
cc68a136 291 unsigned int end;\r
1dceadae 292 unsigned char unused1; // 0c: unused\r
293 unsigned char unused2;\r
cc68a136 294 unsigned char changed;\r
1dceadae 295 unsigned char eeprom_type; // eeprom type: 0: 7bit (24C01), 2: device with 2 addr words (X24C02+), 3: dev with 3 addr words\r
296 unsigned char eeprom_abits; // eeprom access must be odd addr for: bit0 ~ cl, bit1 ~ out\r
297 unsigned char eeprom_bit_cl; // bit number for cl\r
298 unsigned char eeprom_bit_in; // bit number for in\r
299 unsigned char eeprom_bit_out; // bit number for out\r
cc68a136 300};\r
301\r
302// MCD\r
303#include "cd/cd_sys.h"\r
304#include "cd/LC89510.h"\r
d1df8786 305#include "cd/gfx_cd.h"\r
cc68a136 306\r
4f265db7 307struct mcd_pcm\r
308{\r
309 unsigned char control; // reg7\r
310 unsigned char enabled; // reg8\r
311 unsigned char cur_ch;\r
312 unsigned char bank;\r
313 int pad1;\r
314\r
4ff2d527 315 struct pcm_chan // 08, size 0x10\r
4f265db7 316 {\r
317 unsigned char regs[8];\r
4ff2d527 318 unsigned int addr; // .08: played sample address\r
4f265db7 319 int pad;\r
320 } ch[8];\r
321};\r
322\r
c459aefd 323struct mcd_misc\r
324{\r
325 unsigned short hint_vector;\r
326 unsigned char busreq;\r
51a902ae 327 unsigned char s68k_pend_ints;\r
89fa852d 328 unsigned int state_flags; // 04: emu state: reset_pending, dmna_pending\r
51a902ae 329 unsigned int counter75hz;\r
c9e1affc 330 unsigned int pad0;\r
4ff2d527 331 int timer_int3; // 10\r
4f265db7 332 unsigned int timer_stopwatch;\r
6cadc2da 333 unsigned char bcram_reg; // 18: battery-backed RAM cart register\r
334 unsigned char pad2;\r
335 unsigned short pad3;\r
336 int pad[9];\r
c459aefd 337};\r
338\r
cc68a136 339typedef struct\r
340{\r
4ff2d527 341 unsigned char bios[0x20000]; // 000000: 128K\r
342 union { // 020000: 512K\r
fa1e5e29 343 unsigned char prg_ram[0x80000];\r
cc68a136 344 unsigned char prg_ram_b[4][0x20000];\r
345 };\r
4ff2d527 346 union { // 0a0000: 256K\r
fa1e5e29 347 struct {\r
348 unsigned char word_ram2M[0x40000];\r
dca310c4 349 unsigned char unused0[0x20000];\r
fa1e5e29 350 };\r
351 struct {\r
dca310c4 352 unsigned char unused1[0x20000];\r
fa1e5e29 353 unsigned char word_ram1M[2][0x20000];\r
354 };\r
355 };\r
4ff2d527 356 union { // 100000: 64K\r
fa1e5e29 357 unsigned char pcm_ram[0x10000];\r
4f265db7 358 unsigned char pcm_ram_b[0x10][0x1000];\r
359 };\r
4ff2d527 360 unsigned char s68k_regs[0x200]; // 110000: GA, not CPU regs\r
361 unsigned char bram[0x2000]; // 110200: 8K\r
362 struct mcd_misc m; // 112200: misc\r
363 struct mcd_pcm pcm; // 112240:\r
75736070 364 _scd_toc TOC; // not to be saved\r
cc68a136 365 CDD cdd;\r
366 CDC cdc;\r
367 _scd scd;\r
d1df8786 368 Rot_Comp rot_comp;\r
cc68a136 369} mcd_state;\r
370\r
371#define Pico_mcd ((mcd_state *)Pico.rom)\r
372\r
d49b10c2 373\r
51a902ae 374// Area.c\r
2aa27095 375PICO_INTERNAL void PicoAreaPackCpu(unsigned char *cpu, int is_sub);\r
376PICO_INTERNAL void PicoAreaUnpackCpu(unsigned char *cpu, int is_sub);\r
fad24893 377extern void (*PicoLoadStateHook)(void);\r
51a902ae 378\r
379// cd/Area.c\r
eff55556 380PICO_INTERNAL int PicoCdSaveState(void *file);\r
381PICO_INTERNAL int PicoCdLoadState(void *file);\r
cc68a136 382\r
945c2fdc 383typedef struct {\r
384 int chunk;\r
385 int size;\r
386 void *ptr;\r
387} carthw_state_chunk;\r
388extern carthw_state_chunk *carthw_chunks;\r
389#define CHUNK_CARTHW 64\r
390\r
1dceadae 391// Cart.c\r
e807ac75 392extern void (*PicoCartUnloadHook)(void);\r
1dceadae 393\r
03e4f2a3 394// Debug.c\r
b5e5172d 395int CM_compareRun(int cyc, int is_sub);\r
03e4f2a3 396\r
cc68a136 397// Draw.c\r
eff55556 398PICO_INTERNAL void PicoFrameStart(void);\r
b6d7ac70 399void PicoDrawSync(int to, int blank_last_line);\r
400extern int DrawScanline;\r
cc68a136 401\r
402// Draw2.c\r
eff55556 403PICO_INTERNAL void PicoFrameFull();\r
cc68a136 404\r
405// Memory.c\r
2aa27095 406PICO_INTERNAL void PicoInitPc(unsigned int pc);\r
406c96c5 407PICO_INTERNAL unsigned int PicoCheckPc(unsigned int pc);\r
8ab3e3c1 408PICO_INTERNAL_ASM unsigned int PicoRead32(unsigned int a);\r
eff55556 409PICO_INTERNAL void PicoMemSetup(void);\r
410PICO_INTERNAL_ASM void PicoMemReset(void);\r
f8ef8ff7 411PICO_INTERNAL void PicoMemResetHooks(void);\r
e5503e2f 412PICO_INTERNAL int PadRead(int i);\r
eff55556 413PICO_INTERNAL unsigned char z80_read(unsigned short a);\r
a4221917 414#ifndef _USE_CZ80\r
eff55556 415PICO_INTERNAL_ASM void z80_write(unsigned char data, unsigned short a);\r
416PICO_INTERNAL void z80_write16(unsigned short data, unsigned short a);\r
a4221917 417PICO_INTERNAL unsigned short z80_read16(unsigned short a);\r
418#else\r
419PICO_INTERNAL_ASM void z80_write(unsigned int a, unsigned char data);\r
420#endif\r
4b9c5888 421PICO_INTERNAL int ym2612_write_local(unsigned int a, unsigned int d, int is_from_z80);\r
f53f286a 422extern unsigned int (*PicoRead16Hook)(unsigned int a, int realsize);\r
f8ef8ff7 423extern void (*PicoWrite8Hook) (unsigned int a,unsigned int d,int realsize);\r
424extern void (*PicoWrite16Hook)(unsigned int a,unsigned int d,int realsize);\r
cc68a136 425\r
426// cd/Memory.c\r
eff55556 427PICO_INTERNAL void PicoMemSetupCD(void);\r
428PICO_INTERNAL_ASM void PicoMemResetCD(int r3);\r
429PICO_INTERNAL_ASM void PicoMemResetCDdecode(int r3);\r
cc68a136 430\r
9037e45d 431// Pico/Memory.c\r
432PICO_INTERNAL void PicoMemSetupPico(void);\r
43e6eaad 433PICO_INTERNAL unsigned int ym2612_read_local_68k(void);\r
9037e45d 434\r
cc68a136 435// Pico.c\r
436extern struct Pico Pico;\r
437extern struct PicoSRAM SRam;\r
438extern int emustatus;\r
f8ef8ff7 439extern void (*PicoResetHook)(void);\r
b0677887 440extern void (*PicoLineHook)(void);\r
1e6b5e39 441PICO_INTERNAL int CheckDMA(void);\r
442PICO_INTERNAL void PicoDetectRegion(void);\r
4b9c5888 443PICO_INTERNAL void PicoSyncZ80(int m68k_cycles_done);\r
cc68a136 444\r
445// cd/Pico.c\r
2aa27095 446PICO_INTERNAL void PicoInitMCD(void);\r
e5f426aa 447PICO_INTERNAL void PicoExitMCD(void);\r
1cb1584b 448PICO_INTERNAL void PicoPowerMCD(void);\r
2aa27095 449PICO_INTERNAL int PicoResetMCD(void);\r
450PICO_INTERNAL void PicoFrameMCD(void);\r
cc68a136 451\r
9037e45d 452// Pico/Pico.c\r
2aa27095 453PICO_INTERNAL void PicoInitPico(void);\r
ed367a3f 454PICO_INTERNAL void PicoReratePico(void);\r
9037e45d 455\r
ef4eb506 456// Pico/xpcm.c\r
457PICO_INTERNAL void PicoPicoPCMUpdate(short *buffer, int length, int stereo);\r
458PICO_INTERNAL void PicoPicoPCMReset(void);\r
213c16ad 459PICO_INTERNAL void PicoPicoPCMRerate(int xpcm_rate);\r
ef4eb506 460\r
cc68a136 461// Sek.c\r
2aa27095 462PICO_INTERNAL void SekInit(void);\r
463PICO_INTERNAL int SekReset(void);\r
3aa1e148 464PICO_INTERNAL void SekState(int *data);\r
eff55556 465PICO_INTERNAL void SekSetRealTAS(int use_real);\r
053fd9b4 466void SekInitIdleDet(void);\r
467void SekFinishIdleDet(void);\r
cc68a136 468\r
469// cd/Sek.c\r
2aa27095 470PICO_INTERNAL void SekInitS68k(void);\r
471PICO_INTERNAL int SekResetS68k(void);\r
472PICO_INTERNAL int SekInterruptS68k(int irq);\r
cc68a136 473\r
7a93adeb 474// sound/sound.c\r
c9e1affc 475PICO_INTERNAL void cdda_start_play();\r
476extern short cdda_out_buffer[2*1152];\r
7a93adeb 477extern int PsndLen_exc_cnt;\r
478extern int PsndLen_exc_add;\r
48dc74f2 479extern int timer_a_next_oflow, timer_a_step; // in z80 cycles\r
480extern int timer_b_next_oflow, timer_b_step;\r
43e6eaad 481\r
482void ym2612_sync_timers(int z80_cycles, int mode_old, int mode_new);\r
d2721b08 483void ym2612_pack_state(void);\r
453d2a6e 484void ym2612_unpack_state(void);\r
4b9c5888 485\r
e53704e6 486#define TIMER_NO_OFLOW 0x70000000\r
45a1ef71 487// tA = 72 * (1024 - NA) / M\r
488#define TIMER_A_TICK_ZCYCLES 17203\r
489// tB = 1152 * (256 - NA) / M\r
490#define TIMER_B_TICK_ZCYCLES 262800 // 275251 broken, see Dai Makaimura\r
e53704e6 491\r
4b9c5888 492#define timers_cycle() \\r
e53704e6 493 if (timer_a_next_oflow > 0 && timer_a_next_oflow < TIMER_NO_OFLOW) \\r
43e6eaad 494 timer_a_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
e53704e6 495 if (timer_b_next_oflow > 0 && timer_b_next_oflow < TIMER_NO_OFLOW) \\r
43e6eaad 496 timer_b_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
497 ym2612_sync_timers(0, ym2612.OPN.ST.mode, ym2612.OPN.ST.mode);\r
4b9c5888 498\r
499#define timers_reset() \\r
e53704e6 500 timer_a_next_oflow = timer_b_next_oflow = TIMER_NO_OFLOW; \\r
48dc74f2 501 timer_a_step = TIMER_A_TICK_ZCYCLES * 1024; \\r
502 timer_b_step = TIMER_B_TICK_ZCYCLES * 256;\r
43e6eaad 503\r
7a93adeb 504\r
cc68a136 505// VideoPort.c\r
eff55556 506PICO_INTERNAL_ASM void PicoVideoWrite(unsigned int a,unsigned short d);\r
507PICO_INTERNAL_ASM unsigned int PicoVideoRead(unsigned int a);\r
9761a7d0 508PICO_INTERNAL_ASM unsigned int PicoVideoRead8(unsigned int a);\r
5de27868 509extern int (*PicoDmaHook)(unsigned int source, int len, unsigned short **srcp, unsigned short **limitp);\r
cc68a136 510\r
511// Misc.c\r
eff55556 512PICO_INTERNAL void SRAMWriteEEPROM(unsigned int d);\r
513PICO_INTERNAL void SRAMUpdPending(unsigned int a, unsigned int d);\r
514PICO_INTERNAL_ASM unsigned int SRAMReadEEPROM(void);\r
515PICO_INTERNAL_ASM void memcpy16(unsigned short *dest, unsigned short *src, int count);\r
516PICO_INTERNAL_ASM void memcpy16bswap(unsigned short *dest, void *src, int count);\r
517PICO_INTERNAL_ASM void memcpy32(int *dest, int *src, int count); // 32bit word count\r
518PICO_INTERNAL_ASM void memset32(int *dest, int c, int count);\r
cc68a136 519\r
fa1e5e29 520// cd/Misc.c\r
eff55556 521PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);\r
522PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);\r
523\r
524// cd/buffering.c\r
525PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);\r
526\r
527// sound/sound.c\r
9d917eea 528PICO_INTERNAL void PsndReset(void);\r
4b9c5888 529PICO_INTERNAL void PsndDoDAC(int line_to);\r
9d917eea 530PICO_INTERNAL int PsndRender(int offset, int length);\r
531PICO_INTERNAL void PsndClear(void);\r
eff55556 532// z80 functionality wrappers\r
533PICO_INTERNAL void z80_init(void);\r
eff55556 534PICO_INTERNAL void z80_pack(unsigned char *data);\r
535PICO_INTERNAL void z80_unpack(unsigned char *data);\r
536PICO_INTERNAL void z80_reset(void);\r
537PICO_INTERNAL void z80_exit(void);\r
4b9c5888 538extern int PsndDacLine;\r
cc68a136 539\r
540#ifdef __cplusplus\r
541} // End of extern "C"\r
542#endif\r
eff55556 543\r
b8cbd802 544// emulation event logging\r
545#ifndef EL_LOGMASK\r
546#define EL_LOGMASK 0\r
547#endif\r
548\r
017512f2 549#define EL_HVCNT 0x00000001 /* hv counter reads */\r
550#define EL_SR 0x00000002 /* SR reads */\r
551#define EL_INTS 0x00000004 /* ints and acks */\r
43e6eaad 552#define EL_YMTIMER 0x00000008 /* ym2612 timer stuff */\r
017512f2 553#define EL_INTSW 0x00000010 /* log irq switching on/off */\r
554#define EL_ASVDP 0x00000020 /* VDP accesses during active scan */\r
555#define EL_VDPDMA 0x00000040 /* VDP DMA transfers and their timing */\r
556#define EL_BUSREQ 0x00000080 /* z80 busreq r/w or reset w */\r
557#define EL_Z80BNK 0x00000100 /* z80 i/o through bank area */\r
558#define EL_SRAMIO 0x00000200 /* sram i/o */\r
559#define EL_EEPROM 0x00000400 /* eeprom debug */\r
560#define EL_UIO 0x00000800 /* unmapped i/o */\r
561#define EL_IO 0x00001000 /* all i/o */\r
562#define EL_CDPOLL 0x00002000 /* MCD: log poll detection */\r
563#define EL_SVP 0x00004000 /* SVP stuff */\r
fa22af4c 564#define EL_PICOHW 0x00008000 /* Pico stuff */\r
053fd9b4 565#define EL_IDLE 0x00010000 /* idle loop det. */\r
017512f2 566\r
567#define EL_STATUS 0x40000000 /* status messages */\r
568#define EL_ANOMALY 0x80000000 /* some unexpected conditions (during emulation) */\r
b8cbd802 569\r
570#if EL_LOGMASK\r
7d0143a2 571extern void lprintf(const char *fmt, ...);\r
b8cbd802 572#define elprintf(w,f,...) \\r
573{ \\r
574 if ((w) & EL_LOGMASK) \\r
7d0143a2 575 lprintf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__); \\r
b8cbd802 576}\r
dca310c4 577#elif defined(_MSC_VER)\r
578#define elprintf\r
b8cbd802 579#else\r
580#define elprintf(w,f,...)\r
581#endif\r
582\r
dca310c4 583#ifdef _MSC_VER\r
584#define cdprintf\r
585#else\r
586#define cdprintf(x...)\r
587#endif\r
588\r
eff55556 589#endif // PICO_INTERNAL_INCLUDED\r
590\r