remove unused/unmaintained code
[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_DRZ80)\r
182#include "../cpu/DrZ80/drz80.h"\r
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
188#define z80_int() drZ80.Z80_IRQ = 1\r
189\r
190#define z80_cyclesLeft drZ80.cycles\r
191#define z80_pc() (drZ80.Z80PC - drZ80.Z80PC_BASE)\r
192\r
193#elif defined(_USE_CZ80)\r
194#include "../cpu/cz80/cz80.h"\r
195\r
196#define z80_run(cycles) Cz80_Exec(&CZ80, cycles)\r
197#define z80_run_nr(cycles) Cz80_Exec(&CZ80, cycles)\r
198#define z80_int() Cz80_Set_IRQ(&CZ80, 0, HOLD_LINE)\r
199\r
200#define z80_cyclesLeft (CZ80.ICount - CZ80.ExtraCycles)\r
201#define z80_pc() Cz80_Get_Reg(&CZ80, CZ80_PC)\r
202\r
203#else\r
204\r
205#define z80_run(cycles) (cycles)\r
206#define z80_run_nr(cycles)\r
207#define z80_int()\r
208\r
209#endif\r
210\r
211#define Z80_STATE_SIZE 0x60\r
212\r
213extern int z80stopCycle; /* in 68k cycles */\r
214extern int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */\r
215extern int z80_cycle_aim;\r
216extern int z80_scanline;\r
217extern int z80_scanline_cycles; /* cycles done until z80_scanline */\r
218\r
219#define z80_resetCycles() \\r
220 z80_cycle_cnt = z80_cycle_aim = z80_scanline = z80_scanline_cycles = 0;\r
221\r
222#define z80_cyclesDone() \\r
223 (z80_cycle_aim - z80_cyclesLeft)\r
224\r
225#define cycles_68k_to_z80(x) ((x)*957 >> 11)\r
226\r
227// ----------------------- SH2 CPU -----------------------\r
228\r
229#include "cpu/sh2/sh2.h"\r
230\r
231extern SH2 sh2s[2];\r
232#define msh2 sh2s[0]\r
233#define ssh2 sh2s[1]\r
234\r
235#ifndef DRC_SH2\r
236# define ash2_end_run(after) if (sh2->icount > (after)) sh2->icount = after\r
237# define ash2_cycles_done() (sh2->cycles_aim - sh2->icount)\r
238#else\r
239# define ash2_end_run(after) { \\r
240 if ((sh2->sr >> 12) > (after)) \\r
241 { sh2->sr &= 0xfff; sh2->sr |= (after) << 12; } \\r
242}\r
243# define ash2_cycles_done() (sh2->cycles_aim - (sh2->sr >> 12))\r
244#endif\r
245\r
246//#define sh2_pc(c) (c) ? ssh2.ppc : msh2.ppc\r
247#define sh2_pc(c) (c) ? ssh2.pc : msh2.pc\r
248#define sh2_reg(c, x) (c) ? ssh2.r[x] : msh2.r[x]\r
249#define sh2_gbr(c) (c) ? ssh2.gbr : msh2.gbr\r
250#define sh2_vbr(c) (c) ? ssh2.vbr : msh2.vbr\r
251#define sh2_sr(c) (((c) ? ssh2.sr : msh2.sr) & 0xfff)\r
252\r
253#define sh2_set_gbr(c, v) \\r
254 { if (c) ssh2.gbr = v; else msh2.gbr = v; }\r
255#define sh2_set_vbr(c, v) \\r
256 { if (c) ssh2.vbr = v; else msh2.vbr = v; }\r
257\r
258// ---------------------------------------------------------\r
259\r
260// main oscillator clock which controls timing\r
261#define OSC_NTSC 53693100\r
262#define OSC_PAL 53203424\r
263\r
264struct PicoVideo\r
265{\r
266 unsigned char reg[0x20];\r
267 unsigned int command; // 32-bit Command\r
268 unsigned char pending; // 1 if waiting for second half of 32-bit command\r
269 unsigned char type; // Command type (v/c/vsram read/write)\r
270 unsigned short addr; // Read/Write address\r
271 int status; // Status bits\r
272 unsigned char pending_ints; // pending interrupts: ??VH????\r
273 signed char lwrite_cnt; // VDP write count during active display line\r
274 unsigned short v_counter; // V-counter\r
275 unsigned char pad[0x10];\r
276};\r
277\r
278struct PicoMisc\r
279{\r
280 unsigned char rotate;\r
281 unsigned char z80Run;\r
282 unsigned char padTHPhase[2]; // 02 phase of gamepad TH switches\r
283 unsigned short scanline; // 04 0 to 261||311\r
284 char dirtyPal; // 06 Is the palette dirty (1 - change @ this frame, 2 - some time before)\r
285 unsigned char hardware; // 07 Hardware value for country\r
286 unsigned char pal; // 08 1=PAL 0=NTSC\r
287 unsigned char sram_reg; // 09 SRAM reg. See SRR_* below\r
288 unsigned short z80_bank68k; // 0a\r
289 unsigned short pad0;\r
290 unsigned char pad1;\r
291 unsigned char z80_reset; // 0f z80 reset held\r
292 unsigned char padDelay[2]; // 10 gamepad phase time outs, so we count a delay\r
293 unsigned short eeprom_addr; // EEPROM address register\r
294 unsigned char eeprom_cycle; // EEPROM cycle number\r
295 unsigned char eeprom_slave; // EEPROM slave word for X24C02 and better SRAMs\r
296 unsigned char eeprom_status;\r
297 unsigned char pad2;\r
298 unsigned short dma_xfers; // 18\r
299 unsigned char eeprom_wb[2]; // EEPROM latch/write buffer\r
300 unsigned int frame_count; // 1c for movies and idle det\r
301};\r
302\r
303struct PicoMS\r
304{\r
305 unsigned char carthw[0x10];\r
306 unsigned char io_ctl;\r
307 unsigned char pad[0x4f];\r
308};\r
309\r
310// some assembly stuff depend on these, do not touch!\r
311struct Pico\r
312{\r
313 unsigned char ram[0x10000]; // 0x00000 scratch ram\r
314 union { // vram is byteswapped for easier reads when drawing\r
315 unsigned short vram[0x8000]; // 0x10000\r
316 unsigned char vramb[0x4000]; // VRAM in SMS mode\r
317 };\r
318 unsigned char zram[0x2000]; // 0x20000 Z80 ram\r
319 unsigned char ioports[0x10]; // XXX: fix asm and mv\r
320 unsigned char pad[0xf0]; // unused\r
321 unsigned short cram[0x40]; // 0x22100\r
322 unsigned short vsram[0x40]; // 0x22180\r
323\r
324 unsigned char *rom; // 0x22200\r
325 unsigned int romsize; // 0x22204\r
326\r
327 struct PicoMisc m;\r
328 struct PicoVideo video;\r
329 struct PicoMS ms;\r
330};\r
331\r
332// sram\r
333#define SRR_MAPPED (1 << 0)\r
334#define SRR_READONLY (1 << 1)\r
335\r
336#define SRF_ENABLED (1 << 0)\r
337#define SRF_EEPROM (1 << 1)\r
338\r
339struct PicoSRAM\r
340{\r
341 unsigned char *data; // actual data\r
342 unsigned int start; // start address in 68k address space\r
343 unsigned int end;\r
344 unsigned char flags; // 0c: SRF_*\r
345 unsigned char unused2;\r
346 unsigned char changed;\r
347 unsigned char eeprom_type; // eeprom type: 0: 7bit (24C01), 2: 2 addr words (X24C02+), 3: 3 addr words\r
348 unsigned char unused3;\r
349 unsigned char eeprom_bit_cl; // bit number for cl\r
350 unsigned char eeprom_bit_in; // bit number for in\r
351 unsigned char eeprom_bit_out; // bit number for out\r
352 unsigned int size;\r
353};\r
354\r
355// MCD\r
356#include "cd/cd_sys.h"\r
357#include "cd/LC89510.h"\r
358#include "cd/gfx_cd.h"\r
359\r
360struct mcd_pcm\r
361{\r
362 unsigned char control; // reg7\r
363 unsigned char enabled; // reg8\r
364 unsigned char cur_ch;\r
365 unsigned char bank;\r
366 int pad1;\r
367\r
368 struct pcm_chan // 08, size 0x10\r
369 {\r
370 unsigned char regs[8];\r
371 unsigned int addr; // .08: played sample address\r
372 int pad;\r
373 } ch[8];\r
374};\r
375\r
376struct mcd_misc\r
377{\r
378 unsigned short hint_vector;\r
379 unsigned char busreq;\r
380 unsigned char s68k_pend_ints;\r
381 unsigned int state_flags; // 04: emu state: reset_pending\r
382 unsigned int counter75hz;\r
383 unsigned int pad0;\r
384 int timer_int3; // 10\r
385 unsigned int timer_stopwatch;\r
386 unsigned char bcram_reg; // 18: battery-backed RAM cart register\r
387 unsigned char pad2;\r
388 unsigned short pad3;\r
389 int pad[9];\r
390};\r
391\r
392typedef struct\r
393{\r
394 unsigned char bios[0x20000]; // 000000: 128K\r
395 union { // 020000: 512K\r
396 unsigned char prg_ram[0x80000];\r
397 unsigned char prg_ram_b[4][0x20000];\r
398 };\r
399 union { // 0a0000: 256K\r
400 struct {\r
401 unsigned char word_ram2M[0x40000];\r
402 unsigned char unused0[0x20000];\r
403 };\r
404 struct {\r
405 unsigned char unused1[0x20000];\r
406 unsigned char word_ram1M[2][0x20000];\r
407 };\r
408 };\r
409 union { // 100000: 64K\r
410 unsigned char pcm_ram[0x10000];\r
411 unsigned char pcm_ram_b[0x10][0x1000];\r
412 };\r
413 unsigned char s68k_regs[0x200]; // 110000: GA, not CPU regs\r
414 unsigned char bram[0x2000]; // 110200: 8K\r
415 struct mcd_misc m; // 112200: misc\r
416 struct mcd_pcm pcm; // 112240:\r
417 _scd_toc TOC; // not to be saved\r
418 CDD cdd;\r
419 CDC cdc;\r
420 _scd scd;\r
421 Rot_Comp rot_comp;\r
422} mcd_state;\r
423\r
424// XXX: this will need to be reworked for cart+cd support.\r
425#define Pico_mcd ((mcd_state *)Pico.rom)\r
426\r
427// 32X\r
428#define P32XS_FM (1<<15)\r
429#define P32XS_REN (1<< 7)\r
430#define P32XS_nRES (1<< 1)\r
431#define P32XS_ADEN (1<< 0)\r
432#define P32XS2_ADEN (1<< 9)\r
433#define P32XS_FULL (1<< 7) // DREQ FIFO full\r
434#define P32XS_68S (1<< 2)\r
435#define P32XS_DMA (1<< 1)\r
436#define P32XS_RV (1<< 0)\r
437\r
438#define P32XV_nPAL (1<<15) // VDP\r
439#define P32XV_PRI (1<< 7)\r
440#define P32XV_Mx (3<< 0) // display mode mask\r
441\r
442#define P32XV_SFT (1<< 0)\r
443\r
444#define P32XV_VBLK (1<<15)\r
445#define P32XV_HBLK (1<<14)\r
446#define P32XV_PEN (1<<13)\r
447#define P32XV_nFEN (1<< 1)\r
448#define P32XV_FS (1<< 0)\r
449\r
450#define P32XP_FULL (1<<15) // PWM\r
451#define P32XP_EMPTY (1<<14)\r
452\r
453#define P32XF_68KPOLL (1 << 0)\r
454#define P32XF_MSH2POLL (1 << 1)\r
455#define P32XF_SSH2POLL (1 << 2)\r
456#define P32XF_68KVPOLL (1 << 3)\r
457#define P32XF_MSH2VPOLL (1 << 4)\r
458#define P32XF_SSH2VPOLL (1 << 5)\r
459\r
460#define P32XI_VRES (1 << 14/2) // IRL/2\r
461#define P32XI_VINT (1 << 12/2)\r
462#define P32XI_HINT (1 << 10/2)\r
463#define P32XI_CMD (1 << 8/2)\r
464#define P32XI_PWM (1 << 6/2)\r
465\r
466// peripheral reg access\r
467#define PREG8(regs,offs) ((unsigned char *)regs)[offs ^ 3]\r
468\r
469// real one is 4*2, but we use more because we don't lockstep\r
470#define DMAC_FIFO_LEN (4*4)\r
471#define PWM_BUFF_LEN 1024 // in one channel samples\r
472\r
473#define SH2_DRCBLK_RAM_SHIFT 1\r
474#define SH2_DRCBLK_DA_SHIFT 1\r
475\r
476#define SH2_WRITE_SHIFT 25\r
477\r
478struct Pico32x\r
479{\r
480 unsigned short regs[0x20];\r
481 unsigned short vdp_regs[0x10]; // 0x40\r
482 unsigned short sh2_regs[3]; // 0x60\r
483 unsigned char pending_fb;\r
484 unsigned char dirty_pal;\r
485 unsigned int emu_flags;\r
486 unsigned char sh2irq_mask[2];\r
487 unsigned char sh2irqi[2]; // individual\r
488 unsigned int sh2irqs; // common irqs\r
489 unsigned short dmac_fifo[DMAC_FIFO_LEN];\r
490 unsigned int dmac_ptr;\r
491 unsigned int pwm_irq_sample_cnt;\r
492 unsigned int reserved[9];\r
493};\r
494\r
495struct Pico32xMem\r
496{\r
497 unsigned char sdram[0x40000];\r
498#ifdef DRC_SH2\r
499 unsigned short drcblk_ram[1 << (18 - SH2_DRCBLK_RAM_SHIFT)];\r
500#endif\r
501 unsigned short dram[2][0x20000/2]; // AKA fb\r
502 union {\r
503 unsigned char m68k_rom[0x100];\r
504 unsigned char m68k_rom_bank[0x10000]; // M68K_BANK_SIZE\r
505 };\r
506 unsigned char data_array[2][0x1000]; // cache in SH2s (can be used as RAM)\r
507#ifdef DRC_SH2\r
508 unsigned short drcblk_da[2][1 << (12 - SH2_DRCBLK_DA_SHIFT)];\r
509#endif\r
510 unsigned char sh2_rom_m[0x800];\r
511 unsigned char sh2_rom_s[0x400];\r
512 unsigned short pal[0x100];\r
513 unsigned short pal_native[0x100]; // converted to native (for renderer)\r
514 unsigned int sh2_peri_regs[2][0x200/4]; // periphereal regs of SH2s\r
515 signed short pwm[2*PWM_BUFF_LEN]; // PWM buffer for current frame\r
516};\r
517\r
518// area.c\r
519extern void (*PicoLoadStateHook)(void);\r
520\r
521typedef struct {\r
522 int chunk;\r
523 int size;\r
524 void *ptr;\r
525} carthw_state_chunk;\r
526extern carthw_state_chunk *carthw_chunks;\r
527#define CHUNK_CARTHW 64\r
528\r
529// cart.c\r
530extern int PicoCartResize(int newsize);\r
531extern void Byteswap(void *dst, const void *src, int len);\r
532extern void (*PicoCartMemSetup)(void);\r
533extern void (*PicoCartUnloadHook)(void);\r
534\r
535// debug.c\r
536int CM_compareRun(int cyc, int is_sub);\r
537\r
538// draw.c\r
539PICO_INTERNAL void PicoFrameStart(void);\r
540void PicoDrawSync(int to, int blank_last_line);\r
541void BackFill(int reg7, int sh);\r
542void FinalizeLine555(int sh, int line);\r
543extern int (*PicoScanBegin)(unsigned int num);\r
544extern int (*PicoScanEnd)(unsigned int num);\r
545extern int DrawScanline;\r
546#define MAX_LINE_SPRITES 29\r
547extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];\r
548extern void *DrawLineDestBase;\r
549extern int DrawLineDestIncrement;\r
550\r
551// draw2.c\r
552PICO_INTERNAL void PicoFrameFull();\r
553\r
554// mode4.c\r
555void PicoFrameStartMode4(void);\r
556void PicoLineMode4(int line);\r
557void PicoDoHighPal555M4(void);\r
558void PicoDrawSetOutputMode4(pdso_t which);\r
559\r
560// memory.c\r
561PICO_INTERNAL void PicoMemSetup(void);\r
562unsigned int PicoRead8_io(unsigned int a);\r
563unsigned int PicoRead16_io(unsigned int a);\r
564void PicoWrite8_io(unsigned int a, unsigned int d);\r
565void PicoWrite16_io(unsigned int a, unsigned int d);\r
566\r
567// pico/memory.c\r
568PICO_INTERNAL void PicoMemSetupPico(void);\r
569\r
570// cd/memory.c\r
571PICO_INTERNAL void PicoMemSetupCD(void);\r
572void PicoMemStateLoaded(void);\r
573\r
574// pico.c\r
575extern struct Pico Pico;\r
576extern struct PicoSRAM SRam;\r
577extern int PicoPadInt[2];\r
578extern int emustatus;\r
579extern int scanlines_total;\r
580extern void (*PicoResetHook)(void);\r
581extern void (*PicoLineHook)(void);\r
582PICO_INTERNAL int CheckDMA(void);\r
583PICO_INTERNAL void PicoDetectRegion(void);\r
584PICO_INTERNAL void PicoSyncZ80(int m68k_cycles_done);\r
585\r
586// cd/pico.c\r
587PICO_INTERNAL void PicoInitMCD(void);\r
588PICO_INTERNAL void PicoExitMCD(void);\r
589PICO_INTERNAL void PicoPowerMCD(void);\r
590PICO_INTERNAL int PicoResetMCD(void);\r
591PICO_INTERNAL void PicoFrameMCD(void);\r
592\r
593// pico/pico.c\r
594PICO_INTERNAL void PicoInitPico(void);\r
595PICO_INTERNAL void PicoReratePico(void);\r
596\r
597// pico/xpcm.c\r
598PICO_INTERNAL void PicoPicoPCMUpdate(short *buffer, int length, int stereo);\r
599PICO_INTERNAL void PicoPicoPCMReset(void);\r
600PICO_INTERNAL void PicoPicoPCMRerate(int xpcm_rate);\r
601\r
602// sek.c\r
603PICO_INTERNAL void SekInit(void);\r
604PICO_INTERNAL int SekReset(void);\r
605PICO_INTERNAL void SekState(int *data);\r
606PICO_INTERNAL void SekSetRealTAS(int use_real);\r
607PICO_INTERNAL void SekPackCpu(unsigned char *cpu, int is_sub);\r
608PICO_INTERNAL void SekUnpackCpu(const unsigned char *cpu, int is_sub);\r
609void SekStepM68k(void);\r
610void SekInitIdleDet(void);\r
611void SekFinishIdleDet(void);\r
612\r
613// cd/sek.c\r
614PICO_INTERNAL void SekInitS68k(void);\r
615PICO_INTERNAL int SekResetS68k(void);\r
616PICO_INTERNAL int SekInterruptS68k(int irq);\r
617\r
618// sound/sound.c\r
619PICO_INTERNAL void cdda_start_play();\r
620extern short cdda_out_buffer[2*1152];\r
621extern int PsndLen_exc_cnt;\r
622extern int PsndLen_exc_add;\r
623extern int timer_a_next_oflow, timer_a_step; // in z80 cycles\r
624extern int timer_b_next_oflow, timer_b_step;\r
625\r
626void ym2612_sync_timers(int z80_cycles, int mode_old, int mode_new);\r
627void ym2612_pack_state(void);\r
628void ym2612_unpack_state(void);\r
629\r
630#define TIMER_NO_OFLOW 0x70000000\r
631// tA = 72 * (1024 - NA) / M\r
632#define TIMER_A_TICK_ZCYCLES 17203\r
633// tB = 1152 * (256 - NA) / M\r
634#define TIMER_B_TICK_ZCYCLES 262800 // 275251 broken, see Dai Makaimura\r
635\r
636#define timers_cycle() \\r
637 if (timer_a_next_oflow > 0 && timer_a_next_oflow < TIMER_NO_OFLOW) \\r
638 timer_a_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
639 if (timer_b_next_oflow > 0 && timer_b_next_oflow < TIMER_NO_OFLOW) \\r
640 timer_b_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
641 ym2612_sync_timers(0, ym2612.OPN.ST.mode, ym2612.OPN.ST.mode);\r
642\r
643#define timers_reset() \\r
644 timer_a_next_oflow = timer_b_next_oflow = TIMER_NO_OFLOW; \\r
645 timer_a_step = TIMER_A_TICK_ZCYCLES * 1024; \\r
646 timer_b_step = TIMER_B_TICK_ZCYCLES * 256;\r
647\r
648\r
649// videoport.c\r
650PICO_INTERNAL_ASM void PicoVideoWrite(unsigned int a,unsigned short d);\r
651PICO_INTERNAL_ASM unsigned int PicoVideoRead(unsigned int a);\r
652PICO_INTERNAL_ASM unsigned int PicoVideoRead8(unsigned int a);\r
653extern int (*PicoDmaHook)(unsigned int source, int len, unsigned short **srcp, unsigned short **limitp);\r
654\r
655// misc.c\r
656PICO_INTERNAL_ASM void memcpy16(unsigned short *dest, unsigned short *src, int count);\r
657PICO_INTERNAL_ASM void memcpy16bswap(unsigned short *dest, void *src, int count);\r
658PICO_INTERNAL_ASM void memcpy32(int *dest, int *src, int count); // 32bit word count\r
659PICO_INTERNAL_ASM void memset32(int *dest, int c, int count);\r
660\r
661// eeprom.c\r
662void EEPROM_write8(unsigned int a, unsigned int d);\r
663void EEPROM_write16(unsigned int d);\r
664unsigned int EEPROM_read(void);\r
665\r
666// z80 functionality wrappers\r
667PICO_INTERNAL void z80_init(void);\r
668PICO_INTERNAL void z80_pack(void *data);\r
669PICO_INTERNAL int z80_unpack(const void *data);\r
670PICO_INTERNAL void z80_reset(void);\r
671PICO_INTERNAL void z80_exit(void);\r
672\r
673// cd/misc.c\r
674PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);\r
675PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);\r
676\r
677// cd/buffering.c\r
678PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);\r
679\r
680// sound/sound.c\r
681PICO_INTERNAL void PsndReset(void);\r
682PICO_INTERNAL void PsndDoDAC(int line_to);\r
683PICO_INTERNAL void PsndClear(void);\r
684PICO_INTERNAL void PsndGetSamples(int y);\r
685PICO_INTERNAL void PsndGetSamplesMS(void);\r
686extern int PsndDacLine;\r
687\r
688// sms.c\r
689#ifndef NO_SMS\r
690void PicoPowerMS(void);\r
691void PicoResetMS(void);\r
692void PicoMemSetupMS(void);\r
693void PicoStateLoadedMS(void);\r
694void PicoFrameMS(void);\r
695void PicoFrameDrawOnlyMS(void);\r
696#else\r
697#define PicoPowerMS()\r
698#define PicoResetMS()\r
699#define PicoMemSetupMS()\r
700#define PicoStateLoadedMS()\r
701#define PicoFrameMS()\r
702#define PicoFrameDrawOnlyMS()\r
703#endif\r
704\r
705// 32x/32x.c\r
706#ifndef NO_32X\r
707extern struct Pico32x Pico32x;\r
708void Pico32xInit(void);\r
709void PicoPower32x(void);\r
710void PicoReset32x(void);\r
711void Pico32xStartup(void);\r
712void PicoUnload32x(void);\r
713void PicoFrame32x(void);\r
714void p32x_update_irls(int nested_call);\r
715void p32x_reset_sh2s(void);\r
716\r
717// 32x/memory.c\r
718struct Pico32xMem *Pico32xMem;\r
719unsigned int PicoRead8_32x(unsigned int a);\r
720unsigned int PicoRead16_32x(unsigned int a);\r
721void PicoWrite8_32x(unsigned int a, unsigned int d);\r
722void PicoWrite16_32x(unsigned int a, unsigned int d);\r
723void PicoMemSetup32x(void);\r
724void Pico32xSwapDRAM(int b);\r
725void Pico32xStateLoaded(void);\r
726void p32x_poll_event(int cpu_mask, int is_vdp);\r
727\r
728// 32x/draw.c\r
729void FinalizeLine32xRGB555(int sh, int line);\r
730void PicoDraw32xLayer(int offs, int lines, int mdbg);\r
731void PicoDraw32xLayerMdOnly(int offs, int lines);\r
732extern int (*PicoScan32xBegin)(unsigned int num);\r
733extern int (*PicoScan32xEnd)(unsigned int num);\r
734enum {\r
735 PDM32X_OFF,\r
736 PDM32X_32X_ONLY,\r
737 PDM32X_BOTH,\r
738};\r
739extern int Pico32xDrawMode;\r
740\r
741// 32x/pwm.c\r
742unsigned int p32x_pwm_read16(unsigned int a);\r
743void p32x_pwm_write16(unsigned int a, unsigned int d);\r
744void p32x_pwm_update(int *buf32, int length, int stereo);\r
745void p32x_timers_do(int line_call);\r
746void p32x_timers_recalc(void);\r
747extern int pwm_frame_smp_cnt;\r
748#else\r
749#define Pico32xInit()\r
750#define PicoPower32x()\r
751#define PicoReset32x()\r
752#define PicoFrame32x()\r
753#define PicoUnload32x()\r
754#define Pico32xStateLoaded()\r
755#define PicoDraw32xSetFrameMode(...)\r
756#define FinalizeLine32xRGB555 NULL\r
757#define p32x_pwm_update(...)\r
758#define p32x_timers_recalc()\r
759#endif\r
760\r
761/* avoid dependency on newer glibc */\r
762static __inline int isspace_(int c)\r
763{\r
764 return (0x09 <= c && c <= 0x0d) || c == ' ';\r
765}\r
766\r
767#ifndef ARRAY_SIZE\r
768#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))\r
769#endif\r
770\r
771// emulation event logging\r
772#ifndef EL_LOGMASK\r
773#define EL_LOGMASK 0\r
774#endif\r
775\r
776#define EL_HVCNT 0x00000001 /* hv counter reads */\r
777#define EL_SR 0x00000002 /* SR reads */\r
778#define EL_INTS 0x00000004 /* ints and acks */\r
779#define EL_YMTIMER 0x00000008 /* ym2612 timer stuff */\r
780#define EL_INTSW 0x00000010 /* log irq switching on/off */\r
781#define EL_ASVDP 0x00000020 /* VDP accesses during active scan */\r
782#define EL_VDPDMA 0x00000040 /* VDP DMA transfers and their timing */\r
783#define EL_BUSREQ 0x00000080 /* z80 busreq r/w or reset w */\r
784#define EL_Z80BNK 0x00000100 /* z80 i/o through bank area */\r
785#define EL_SRAMIO 0x00000200 /* sram i/o */\r
786#define EL_EEPROM 0x00000400 /* eeprom debug */\r
787#define EL_UIO 0x00000800 /* unmapped i/o */\r
788#define EL_IO 0x00001000 /* all i/o */\r
789#define EL_CDPOLL 0x00002000 /* MCD: log poll detection */\r
790#define EL_SVP 0x00004000 /* SVP stuff */\r
791#define EL_PICOHW 0x00008000 /* Pico stuff */\r
792#define EL_IDLE 0x00010000 /* idle loop det. */\r
793#define EL_CDREGS 0x00020000 /* MCD: register access */\r
794#define EL_CDREG3 0x00040000 /* MCD: register 3 only */\r
795#define EL_32X 0x00080000\r
796#define EL_PWM 0x00100000 /* 32X PWM stuff (LOTS of output) */\r
797\r
798#define EL_STATUS 0x40000000 /* status messages */\r
799#define EL_ANOMALY 0x80000000 /* some unexpected conditions (during emulation) */\r
800\r
801#if EL_LOGMASK\r
802extern void lprintf(const char *fmt, ...);\r
803#define elprintf(w,f,...) \\r
804{ \\r
805 if ((w) & EL_LOGMASK) \\r
806 lprintf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__); \\r
807}\r
808#elif defined(_MSC_VER)\r
809#define elprintf\r
810#else\r
811#define elprintf(w,f,...)\r
812#endif\r
813\r
814// profiling\r
815#ifdef PPROF\r
816#include <platform/linux/pprof.h>\r
817#else\r
818#define pprof_init()\r
819#define pprof_finish()\r
820#define pprof_start(x)\r
821#define pprof_end(...)\r
822#define pprof_end_sub(...)\r
823#endif\r
824\r
825// misc\r
826#ifdef _MSC_VER\r
827#define cdprintf\r
828#else\r
829#define cdprintf(x...)\r
830#endif\r
831\r
832#ifdef __i386__\r
833#define REGPARM(x) __attribute__((regparm(x)))\r
834#else\r
835#define REGPARM(x)\r
836#endif\r
837\r
838#ifdef __GNUC__\r
839#define NOINLINE __attribute__((noinline))\r
840#else\r
841#define NOINLINE\r
842#endif\r
843\r
844#ifdef __cplusplus\r
845} // End of extern "C"\r
846#endif\r
847\r
848#endif // PICO_INTERNAL_INCLUDED\r
849\r