32x: some timing hacks..
[picodrive.git] / pico / pico_int.h
... / ...
CommitLineData
1/*\r
2 * PicoDrive - Internal Header File\r
3 * (c) Copyright Dave, 2004\r
4 * (C) notaz, 2006-2010\r
5 *\r
6 * This work is licensed under the terms of MAME license.\r
7 * See COPYING file in the top-level directory.\r
8 */\r
9\r
10#ifndef PICO_INTERNAL_INCLUDED\r
11#define PICO_INTERNAL_INCLUDED\r
12\r
13#include <stdio.h>\r
14#include <stdlib.h>\r
15#include <string.h>\r
16#include "pico.h"\r
17#include "carthw/carthw.h"\r
18\r
19//\r
20#define USE_POLL_DETECT\r
21\r
22#ifndef PICO_INTERNAL\r
23#define PICO_INTERNAL\r
24#endif\r
25#ifndef PICO_INTERNAL_ASM\r
26#define PICO_INTERNAL_ASM\r
27#endif\r
28\r
29// to select core, define EMU_C68K, EMU_M68K or EMU_F68K in your makefile or project\r
30\r
31#ifdef __cplusplus\r
32extern "C" {\r
33#endif\r
34\r
35\r
36// ----------------------- 68000 CPU -----------------------\r
37#ifdef EMU_C68K\r
38#include "../cpu/cyclone/Cyclone.h"\r
39extern struct Cyclone PicoCpuCM68k, PicoCpuCS68k;\r
40#define SekCyclesLeftNoMCD PicoCpuCM68k.cycles // cycles left for this run\r
41#define SekCyclesLeft \\r
42 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
43#define SekCyclesLeftS68k \\r
44 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuCS68k.cycles)\r
45#define SekEndTimeslice(after) PicoCpuCM68k.cycles=after\r
46#define SekEndTimesliceS68k(after) PicoCpuCS68k.cycles=after\r
47#define SekPc (PicoCpuCM68k.pc-PicoCpuCM68k.membase)\r
48#define SekPcS68k (PicoCpuCS68k.pc-PicoCpuCS68k.membase)\r
49#define SekDar(x) (x < 8 ? PicoCpuCM68k.d[x] : PicoCpuCM68k.a[x - 8])\r
50#define SekDarS68k(x) (x < 8 ? PicoCpuCS68k.d[x] : PicoCpuCS68k.a[x - 8])\r
51#define SekSr CycloneGetSr(&PicoCpuCM68k)\r
52#define SekSrS68k CycloneGetSr(&PicoCpuCS68k)\r
53#define SekSetStop(x) { PicoCpuCM68k.state_flags&=~1; if (x) { PicoCpuCM68k.state_flags|=1; PicoCpuCM68k.cycles=0; } }\r
54#define SekSetStopS68k(x) { PicoCpuCS68k.state_flags&=~1; if (x) { PicoCpuCS68k.state_flags|=1; PicoCpuCS68k.cycles=0; } }\r
55#define SekIsStoppedM68k() (PicoCpuCM68k.state_flags&1)\r
56#define SekIsStoppedS68k() (PicoCpuCS68k.state_flags&1)\r
57#define SekShouldInterrupt (PicoCpuCM68k.irq > (PicoCpuCM68k.srh&7))\r
58\r
59#define SekInterrupt(i) PicoCpuCM68k.irq=i\r
60#define SekIrqLevel PicoCpuCM68k.irq\r
61\r
62#ifdef EMU_M68K\r
63#define EMU_CORE_DEBUG\r
64#endif\r
65#endif\r
66\r
67#ifdef EMU_F68K\r
68#include "../cpu/fame/fame.h"\r
69extern M68K_CONTEXT PicoCpuFM68k, PicoCpuFS68k;\r
70#define SekCyclesLeftNoMCD PicoCpuFM68k.io_cycle_counter\r
71#define SekCyclesLeft \\r
72 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
73#define SekCyclesLeftS68k \\r
74 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuFS68k.io_cycle_counter)\r
75#define SekEndTimeslice(after) PicoCpuFM68k.io_cycle_counter=after\r
76#define SekEndTimesliceS68k(after) PicoCpuFS68k.io_cycle_counter=after\r
77#define SekPc fm68k_get_pc(&PicoCpuFM68k)\r
78#define SekPcS68k fm68k_get_pc(&PicoCpuFS68k)\r
79#define SekDar(x) (x < 8 ? PicoCpuFM68k.dreg[x].D : PicoCpuFM68k.areg[x - 8].D)\r
80#define SekDarS68k(x) (x < 8 ? PicoCpuFS68k.dreg[x].D : PicoCpuFS68k.areg[x - 8].D)\r
81#define SekSr PicoCpuFM68k.sr\r
82#define SekSrS68k PicoCpuFS68k.sr\r
83#define SekSetStop(x) { \\r
84 PicoCpuFM68k.execinfo &= ~FM68K_HALTED; \\r
85 if (x) { PicoCpuFM68k.execinfo |= FM68K_HALTED; PicoCpuFM68k.io_cycle_counter = 0; } \\r
86}\r
87#define SekSetStopS68k(x) { \\r
88 PicoCpuFS68k.execinfo &= ~FM68K_HALTED; \\r
89 if (x) { PicoCpuFS68k.execinfo |= FM68K_HALTED; PicoCpuFS68k.io_cycle_counter = 0; } \\r
90}\r
91#define SekIsStoppedM68k() (PicoCpuFM68k.execinfo&FM68K_HALTED)\r
92#define SekIsStoppedS68k() (PicoCpuFS68k.execinfo&FM68K_HALTED)\r
93#define SekShouldInterrupt fm68k_would_interrupt()\r
94\r
95#define SekInterrupt(irq) PicoCpuFM68k.interrupts[0]=irq\r
96#define SekIrqLevel PicoCpuFM68k.interrupts[0]\r
97\r
98#ifdef EMU_M68K\r
99#define EMU_CORE_DEBUG\r
100#endif\r
101#endif\r
102\r
103#ifdef EMU_M68K\r
104#include "../cpu/musashi/m68kcpu.h"\r
105extern m68ki_cpu_core PicoCpuMM68k, PicoCpuMS68k;\r
106#ifndef SekCyclesLeft\r
107#define SekCyclesLeftNoMCD PicoCpuMM68k.cyc_remaining_cycles\r
108#define SekCyclesLeft \\r
109 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
110#define SekCyclesLeftS68k \\r
111 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuMS68k.cyc_remaining_cycles)\r
112#define SekEndTimeslice(after) SET_CYCLES(after)\r
113#define SekEndTimesliceS68k(after) PicoCpuMS68k.cyc_remaining_cycles=after\r
114#define SekPc m68k_get_reg(&PicoCpuMM68k, M68K_REG_PC)\r
115#define SekPcS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_PC)\r
116#define SekDar(x) PicoCpuMM68k.dar[x]\r
117#define SekDarS68k(x) PicoCpuMS68k.dar[x]\r
118#define SekSr m68k_get_reg(&PicoCpuMM68k, M68K_REG_SR)\r
119#define SekSrS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_SR)\r
120#define SekSetStop(x) { \\r
121 if(x) { SET_CYCLES(0); PicoCpuMM68k.stopped=STOP_LEVEL_STOP; } \\r
122 else PicoCpuMM68k.stopped=0; \\r
123}\r
124#define SekSetStopS68k(x) { \\r
125 if(x) { SET_CYCLES(0); PicoCpuMS68k.stopped=STOP_LEVEL_STOP; } \\r
126 else PicoCpuMS68k.stopped=0; \\r
127}\r
128#define SekIsStoppedM68k() (PicoCpuMM68k.stopped==STOP_LEVEL_STOP)\r
129#define SekIsStoppedS68k() (PicoCpuMS68k.stopped==STOP_LEVEL_STOP)\r
130#define SekShouldInterrupt (CPU_INT_LEVEL > FLAG_INT_MASK)\r
131\r
132#define SekInterrupt(irq) { \\r
133 void *oldcontext = m68ki_cpu_p; \\r
134 m68k_set_context(&PicoCpuMM68k); \\r
135 m68k_set_irq(irq); \\r
136 m68k_set_context(oldcontext); \\r
137}\r
138#define SekIrqLevel (PicoCpuMM68k.int_level >> 8)\r
139\r
140#endif\r
141#endif // EMU_M68K\r
142\r
143extern int SekCycleCnt; // cycles done in this frame\r
144extern int SekCycleAim; // cycle aim\r
145extern unsigned int SekCycleCntT; // total cycle counter, updated once per frame\r
146\r
147#define SekCyclesReset() { \\r
148 SekCycleCntT+=SekCycleAim; \\r
149 SekCycleCnt-=SekCycleAim; \\r
150 SekCycleAim=0; \\r
151}\r
152#define SekCyclesBurn(c) SekCycleCnt+=c\r
153#define SekCyclesDone() (SekCycleAim-SekCyclesLeft) // number of cycles done in this frame (can be checked anywhere)\r
154#define SekCyclesDoneT() (SekCycleCntT+SekCyclesDone()) // total nuber of cycles done for this rom\r
155#define SekCyclesDoneT2() (SekCycleCntT + SekCycleCnt) // same as above but not from memhandlers\r
156\r
157#define SekEndRun(after) { \\r
158 SekCycleCnt -= SekCyclesLeft - (after); \\r
159 if (SekCycleCnt < 0) SekCycleCnt = 0; \\r
160 SekEndTimeslice(after); \\r
161}\r
162\r
163#define SekEndRunS68k(after) { \\r
164 SekCycleCntS68k -= SekCyclesLeftS68k - (after); \\r
165 if (SekCycleCntS68k < 0) SekCycleCntS68k = 0; \\r
166 SekEndTimesliceS68k(after); \\r
167}\r
168\r
169extern int SekCycleCntS68k;\r
170extern int SekCycleAimS68k;\r
171\r
172#define SekCyclesResetS68k() { \\r
173 SekCycleCntS68k-=SekCycleAimS68k; \\r
174 SekCycleAimS68k=0; \\r
175}\r
176#define SekCyclesDoneS68k() (SekCycleAimS68k-SekCyclesLeftS68k)\r
177\r
178#ifdef EMU_CORE_DEBUG\r
179extern int dbg_irq_level;\r
180#undef SekEndTimeslice\r
181#undef SekCyclesBurn\r
182#undef SekEndRun\r
183#undef SekInterrupt\r
184#define SekEndTimeslice(c)\r
185#define SekCyclesBurn(c) c\r
186#define SekEndRun(c)\r
187#define SekInterrupt(irq) dbg_irq_level=irq\r
188#endif\r
189\r
190// ----------------------- Z80 CPU -----------------------\r
191\r
192#if defined(_USE_DRZ80)\r
193#include "../cpu/DrZ80/drz80.h"\r
194\r
195extern struct DrZ80 drZ80;\r
196\r
197#define z80_run(cycles) ((cycles) - DrZ80Run(&drZ80, cycles))\r
198#define z80_run_nr(cycles) DrZ80Run(&drZ80, cycles)\r
199#define z80_int() drZ80.Z80_IRQ = 1\r
200\r
201#define z80_cyclesLeft drZ80.cycles\r
202#define z80_pc() (drZ80.Z80PC - drZ80.Z80PC_BASE)\r
203\r
204#elif defined(_USE_CZ80)\r
205#include "../cpu/cz80/cz80.h"\r
206\r
207#define z80_run(cycles) Cz80_Exec(&CZ80, cycles)\r
208#define z80_run_nr(cycles) Cz80_Exec(&CZ80, cycles)\r
209#define z80_int() Cz80_Set_IRQ(&CZ80, 0, HOLD_LINE)\r
210\r
211#define z80_cyclesLeft (CZ80.ICount - CZ80.ExtraCycles)\r
212#define z80_pc() Cz80_Get_Reg(&CZ80, CZ80_PC)\r
213\r
214#else\r
215\r
216#define z80_run(cycles) (cycles)\r
217#define z80_run_nr(cycles)\r
218#define z80_int()\r
219\r
220#endif\r
221\r
222#define Z80_STATE_SIZE 0x60\r
223\r
224extern int z80stopCycle; /* in 68k cycles */\r
225extern int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */\r
226extern int z80_cycle_aim;\r
227extern int z80_scanline;\r
228extern int z80_scanline_cycles; /* cycles done until z80_scanline */\r
229\r
230#define z80_resetCycles() \\r
231 z80_cycle_cnt = z80_cycle_aim = z80_scanline = z80_scanline_cycles = 0;\r
232\r
233#define z80_cyclesDone() \\r
234 (z80_cycle_aim - z80_cyclesLeft)\r
235\r
236#define cycles_68k_to_z80(x) ((x)*957 >> 11)\r
237\r
238// ----------------------- SH2 CPU -----------------------\r
239\r
240#include "cpu/sh2/sh2.h"\r
241\r
242extern SH2 sh2s[2];\r
243#define msh2 sh2s[0]\r
244#define ssh2 sh2s[1]\r
245\r
246#ifndef DRC_SH2\r
247# define sh2_end_run(sh2, after_) do { \\r
248 if ((sh2)->icount > (after_)) { \\r
249 (sh2)->cycles_timeslice -= (sh2)->icount - (after_); \\r
250 (sh2)->icount = after_; \\r
251 } \\r
252} while (0)\r
253# define sh2_cycles_left(sh2) (sh2)->icount\r
254# define sh2_burn_cycles(sh2, n) (sh2)->icount -= n\r
255# define sh2_pc(sh2) (sh2)->ppc\r
256#else\r
257# define sh2_end_run(sh2, after_) do { \\r
258 int left_ = (signed int)(sh2)->sr >> 12; \\r
259 if (left_ > (after_)) { \\r
260 (sh2)->cycles_timeslice -= left_ - (after_); \\r
261 (sh2)->sr &= 0xfff; \\r
262 (sh2)->sr |= (after_) << 12; \\r
263 } \\r
264} while (0)\r
265# define sh2_cycles_left(sh2) ((signed int)(sh2)->sr >> 12)\r
266# define sh2_burn_cycles(sh2, n) (sh2)->sr -= ((n) << 12)\r
267# define sh2_pc(sh2) (sh2)->pc\r
268#endif\r
269\r
270#define sh2_cycles_done(sh2) ((int)(sh2)->cycles_timeslice - sh2_cycles_left(sh2))\r
271#define sh2_cycles_done_t(sh2) \\r
272 ((sh2)->m68krcycles_done * 3 + sh2_cycles_done(sh2))\r
273#define sh2_cycles_done_m68k(sh2) \\r
274 ((sh2)->m68krcycles_done + (sh2_cycles_done(sh2) / 3))\r
275\r
276#define sh2_reg(c, x) (c) ? ssh2.r[x] : msh2.r[x]\r
277#define sh2_gbr(c) (c) ? ssh2.gbr : msh2.gbr\r
278#define sh2_vbr(c) (c) ? ssh2.vbr : msh2.vbr\r
279#define sh2_sr(c) (((c) ? ssh2.sr : msh2.sr) & 0xfff)\r
280\r
281#define sh2_set_gbr(c, v) \\r
282 { if (c) ssh2.gbr = v; else msh2.gbr = v; }\r
283#define sh2_set_vbr(c, v) \\r
284 { if (c) ssh2.vbr = v; else msh2.vbr = v; }\r
285\r
286// ---------------------------------------------------------\r
287\r
288// main oscillator clock which controls timing\r
289#define OSC_NTSC 53693100\r
290#define OSC_PAL 53203424\r
291\r
292struct PicoVideo\r
293{\r
294 unsigned char reg[0x20];\r
295 unsigned int command; // 32-bit Command\r
296 unsigned char pending; // 1 if waiting for second half of 32-bit command\r
297 unsigned char type; // Command type (v/c/vsram read/write)\r
298 unsigned short addr; // Read/Write address\r
299 int status; // Status bits\r
300 unsigned char pending_ints; // pending interrupts: ??VH????\r
301 signed char lwrite_cnt; // VDP write count during active display line\r
302 unsigned short v_counter; // V-counter\r
303 unsigned char pad[0x10];\r
304};\r
305\r
306struct PicoMisc\r
307{\r
308 unsigned char rotate;\r
309 unsigned char z80Run;\r
310 unsigned char padTHPhase[2]; // 02 phase of gamepad TH switches\r
311 unsigned short scanline; // 04 0 to 261||311\r
312 char dirtyPal; // 06 Is the palette dirty (1 - change @ this frame, 2 - some time before)\r
313 unsigned char hardware; // 07 Hardware value for country\r
314 unsigned char pal; // 08 1=PAL 0=NTSC\r
315 unsigned char sram_reg; // 09 SRAM reg. See SRR_* below\r
316 unsigned short z80_bank68k; // 0a\r
317 unsigned short pad0;\r
318 unsigned char pad1;\r
319 unsigned char z80_reset; // 0f z80 reset held\r
320 unsigned char padDelay[2]; // 10 gamepad phase time outs, so we count a delay\r
321 unsigned short eeprom_addr; // EEPROM address register\r
322 unsigned char eeprom_cycle; // EEPROM cycle number\r
323 unsigned char eeprom_slave; // EEPROM slave word for X24C02 and better SRAMs\r
324 unsigned char eeprom_status;\r
325 unsigned char pad2;\r
326 unsigned short dma_xfers; // 18\r
327 unsigned char eeprom_wb[2]; // EEPROM latch/write buffer\r
328 unsigned int frame_count; // 1c for movies and idle det\r
329};\r
330\r
331struct PicoMS\r
332{\r
333 unsigned char carthw[0x10];\r
334 unsigned char io_ctl;\r
335 unsigned char pad[0x4f];\r
336};\r
337\r
338// some assembly stuff depend on these, do not touch!\r
339struct Pico\r
340{\r
341 unsigned char ram[0x10000]; // 0x00000 scratch ram\r
342 union { // vram is byteswapped for easier reads when drawing\r
343 unsigned short vram[0x8000]; // 0x10000\r
344 unsigned char vramb[0x4000]; // VRAM in SMS mode\r
345 };\r
346 unsigned char zram[0x2000]; // 0x20000 Z80 ram\r
347 unsigned char ioports[0x10]; // XXX: fix asm and mv\r
348 unsigned char pad[0xf0]; // unused\r
349 unsigned short cram[0x40]; // 0x22100\r
350 unsigned short vsram[0x40]; // 0x22180\r
351\r
352 unsigned char *rom; // 0x22200\r
353 unsigned int romsize; // 0x22204\r
354\r
355 struct PicoMisc m;\r
356 struct PicoVideo video;\r
357 struct PicoMS ms;\r
358};\r
359\r
360// sram\r
361#define SRR_MAPPED (1 << 0)\r
362#define SRR_READONLY (1 << 1)\r
363\r
364#define SRF_ENABLED (1 << 0)\r
365#define SRF_EEPROM (1 << 1)\r
366\r
367struct PicoSRAM\r
368{\r
369 unsigned char *data; // actual data\r
370 unsigned int start; // start address in 68k address space\r
371 unsigned int end;\r
372 unsigned char flags; // 0c: SRF_*\r
373 unsigned char unused2;\r
374 unsigned char changed;\r
375 unsigned char eeprom_type; // eeprom type: 0: 7bit (24C01), 2: 2 addr words (X24C02+), 3: 3 addr words\r
376 unsigned char unused3;\r
377 unsigned char eeprom_bit_cl; // bit number for cl\r
378 unsigned char eeprom_bit_in; // bit number for in\r
379 unsigned char eeprom_bit_out; // bit number for out\r
380 unsigned int size;\r
381};\r
382\r
383// MCD\r
384#include "cd/cd_sys.h"\r
385#include "cd/LC89510.h"\r
386#include "cd/gfx_cd.h"\r
387\r
388struct mcd_pcm\r
389{\r
390 unsigned char control; // reg7\r
391 unsigned char enabled; // reg8\r
392 unsigned char cur_ch;\r
393 unsigned char bank;\r
394 int pad1;\r
395\r
396 struct pcm_chan // 08, size 0x10\r
397 {\r
398 unsigned char regs[8];\r
399 unsigned int addr; // .08: played sample address\r
400 int pad;\r
401 } ch[8];\r
402};\r
403\r
404struct mcd_misc\r
405{\r
406 unsigned short hint_vector;\r
407 unsigned char busreq;\r
408 unsigned char s68k_pend_ints;\r
409 unsigned int state_flags; // 04: emu state: reset_pending\r
410 unsigned int counter75hz;\r
411 unsigned int pad0;\r
412 int timer_int3; // 10\r
413 unsigned int timer_stopwatch;\r
414 unsigned char bcram_reg; // 18: battery-backed RAM cart register\r
415 unsigned char pad2;\r
416 unsigned short pad3;\r
417 int pad[9];\r
418};\r
419\r
420typedef struct\r
421{\r
422 unsigned char bios[0x20000]; // 000000: 128K\r
423 union { // 020000: 512K\r
424 unsigned char prg_ram[0x80000];\r
425 unsigned char prg_ram_b[4][0x20000];\r
426 };\r
427 union { // 0a0000: 256K\r
428 struct {\r
429 unsigned char word_ram2M[0x40000];\r
430 unsigned char unused0[0x20000];\r
431 };\r
432 struct {\r
433 unsigned char unused1[0x20000];\r
434 unsigned char word_ram1M[2][0x20000];\r
435 };\r
436 };\r
437 union { // 100000: 64K\r
438 unsigned char pcm_ram[0x10000];\r
439 unsigned char pcm_ram_b[0x10][0x1000];\r
440 };\r
441 unsigned char s68k_regs[0x200]; // 110000: GA, not CPU regs\r
442 unsigned char bram[0x2000]; // 110200: 8K\r
443 struct mcd_misc m; // 112200: misc\r
444 struct mcd_pcm pcm; // 112240:\r
445 _scd_toc TOC; // not to be saved\r
446 CDD cdd;\r
447 CDC cdc;\r
448 _scd scd;\r
449 Rot_Comp rot_comp;\r
450} mcd_state;\r
451\r
452// XXX: this will need to be reworked for cart+cd support.\r
453#define Pico_mcd ((mcd_state *)Pico.rom)\r
454\r
455// 32X\r
456#define P32XS_FM (1<<15)\r
457#define P32XS_REN (1<< 7)\r
458#define P32XS_nRES (1<< 1)\r
459#define P32XS_ADEN (1<< 0)\r
460#define P32XS2_ADEN (1<< 9)\r
461#define P32XS_FULL (1<< 7) // DREQ FIFO full\r
462#define P32XS_68S (1<< 2)\r
463#define P32XS_DMA (1<< 1)\r
464#define P32XS_RV (1<< 0)\r
465\r
466#define P32XV_nPAL (1<<15) // VDP\r
467#define P32XV_PRI (1<< 7)\r
468#define P32XV_Mx (3<< 0) // display mode mask\r
469\r
470#define P32XV_SFT (1<< 0)\r
471\r
472#define P32XV_VBLK (1<<15)\r
473#define P32XV_HBLK (1<<14)\r
474#define P32XV_PEN (1<<13)\r
475#define P32XV_nFEN (1<< 1)\r
476#define P32XV_FS (1<< 0)\r
477\r
478#define P32XP_RTP (1<<7) // PWM control\r
479#define P32XP_FULL (1<<15) // PWM pulse\r
480#define P32XP_EMPTY (1<<14)\r
481\r
482#define P32XF_68KCPOLL (1 << 0)\r
483#define P32XF_68KVPOLL (1 << 1)\r
484\r
485#define P32XI_VRES (1 << 14/2) // IRL/2\r
486#define P32XI_VINT (1 << 12/2)\r
487#define P32XI_HINT (1 << 10/2)\r
488#define P32XI_CMD (1 << 8/2)\r
489#define P32XI_PWM (1 << 6/2)\r
490\r
491// peripheral reg access\r
492#define PREG8(regs,offs) ((unsigned char *)regs)[offs ^ 3]\r
493\r
494#define DMAC_FIFO_LEN (4*2)\r
495#define PWM_BUFF_LEN 1024 // in one channel samples\r
496\r
497#define SH2_DRCBLK_RAM_SHIFT 1\r
498#define SH2_DRCBLK_DA_SHIFT 1\r
499\r
500#define SH2_READ_SHIFT 25\r
501#define SH2_WRITE_SHIFT 25\r
502\r
503struct Pico32x\r
504{\r
505 unsigned short regs[0x20];\r
506 unsigned short vdp_regs[0x10]; // 0x40\r
507 unsigned short sh2_regs[3]; // 0x60\r
508 unsigned char pending_fb;\r
509 unsigned char dirty_pal;\r
510 unsigned int emu_flags;\r
511 unsigned char sh2irq_mask[2];\r
512 unsigned char sh2irqi[2]; // individual\r
513 unsigned int sh2irqs; // common irqs\r
514 unsigned short dmac_fifo[DMAC_FIFO_LEN];\r
515 unsigned int pad[4];\r
516 unsigned int dmac0_fifo_ptr;\r
517 unsigned short vdp_fbcr_fake;\r
518 unsigned short pad2;\r
519 unsigned char comm_dirty_68k;\r
520 unsigned char comm_dirty_sh2;\r
521 unsigned char pwm_irq_cnt;\r
522 unsigned char pad1;\r
523 unsigned short pwm_p[2]; // pwm pos in fifo\r
524 unsigned int pwm_cycle_p; // pwm play cursor (32x cycles)\r
525 unsigned int reserved[6];\r
526};\r
527\r
528struct Pico32xMem\r
529{\r
530 unsigned char sdram[0x40000];\r
531#ifdef DRC_SH2\r
532 unsigned short drcblk_ram[1 << (18 - SH2_DRCBLK_RAM_SHIFT)];\r
533#endif\r
534 unsigned short dram[2][0x20000/2]; // AKA fb\r
535 union {\r
536 unsigned char m68k_rom[0x100];\r
537 unsigned char m68k_rom_bank[0x10000]; // M68K_BANK_SIZE\r
538 };\r
539#ifdef DRC_SH2\r
540 unsigned short drcblk_da[2][1 << (12 - SH2_DRCBLK_DA_SHIFT)];\r
541#endif\r
542 unsigned char sh2_rom_m[0x800];\r
543 unsigned char sh2_rom_s[0x400];\r
544 unsigned short pal[0x100];\r
545 unsigned short pal_native[0x100]; // converted to native (for renderer)\r
546 signed short pwm[2*PWM_BUFF_LEN]; // PWM buffer for current frame\r
547 signed short pwm_fifo[2][4]; // [0] - current, others - fifo entries\r
548};\r
549\r
550// area.c\r
551extern void (*PicoLoadStateHook)(void);\r
552\r
553typedef struct {\r
554 int chunk;\r
555 int size;\r
556 void *ptr;\r
557} carthw_state_chunk;\r
558extern carthw_state_chunk *carthw_chunks;\r
559#define CHUNK_CARTHW 64\r
560\r
561// cart.c\r
562extern int PicoCartResize(int newsize);\r
563extern void Byteswap(void *dst, const void *src, int len);\r
564extern void (*PicoCartMemSetup)(void);\r
565extern void (*PicoCartUnloadHook)(void);\r
566\r
567// debug.c\r
568int CM_compareRun(int cyc, int is_sub);\r
569\r
570// draw.c\r
571PICO_INTERNAL void PicoFrameStart(void);\r
572void PicoDrawSync(int to, int blank_last_line);\r
573void BackFill(int reg7, int sh);\r
574void FinalizeLine555(int sh, int line);\r
575extern int (*PicoScanBegin)(unsigned int num);\r
576extern int (*PicoScanEnd)(unsigned int num);\r
577extern int DrawScanline;\r
578#define MAX_LINE_SPRITES 29\r
579extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];\r
580extern void *DrawLineDestBase;\r
581extern int DrawLineDestIncrement;\r
582\r
583// draw2.c\r
584PICO_INTERNAL void PicoFrameFull();\r
585\r
586// mode4.c\r
587void PicoFrameStartMode4(void);\r
588void PicoLineMode4(int line);\r
589void PicoDoHighPal555M4(void);\r
590void PicoDrawSetOutputMode4(pdso_t which);\r
591\r
592// memory.c\r
593PICO_INTERNAL void PicoMemSetup(void);\r
594unsigned int PicoRead8_io(unsigned int a);\r
595unsigned int PicoRead16_io(unsigned int a);\r
596void PicoWrite8_io(unsigned int a, unsigned int d);\r
597void PicoWrite16_io(unsigned int a, unsigned int d);\r
598void p32x_dreq1_trigger(void);\r
599\r
600// pico/memory.c\r
601PICO_INTERNAL void PicoMemSetupPico(void);\r
602\r
603// cd/memory.c\r
604PICO_INTERNAL void PicoMemSetupCD(void);\r
605void PicoMemStateLoaded(void);\r
606\r
607// pico.c\r
608extern struct Pico Pico;\r
609extern struct PicoSRAM SRam;\r
610extern int PicoPadInt[2];\r
611extern int emustatus;\r
612extern int scanlines_total;\r
613extern void (*PicoResetHook)(void);\r
614extern void (*PicoLineHook)(void);\r
615PICO_INTERNAL int CheckDMA(void);\r
616PICO_INTERNAL void PicoDetectRegion(void);\r
617PICO_INTERNAL void PicoSyncZ80(int m68k_cycles_done);\r
618\r
619// cd/pico.c\r
620PICO_INTERNAL void PicoInitMCD(void);\r
621PICO_INTERNAL void PicoExitMCD(void);\r
622PICO_INTERNAL void PicoPowerMCD(void);\r
623PICO_INTERNAL int PicoResetMCD(void);\r
624PICO_INTERNAL void PicoFrameMCD(void);\r
625\r
626// pico/pico.c\r
627PICO_INTERNAL void PicoInitPico(void);\r
628PICO_INTERNAL void PicoReratePico(void);\r
629\r
630// pico/xpcm.c\r
631PICO_INTERNAL void PicoPicoPCMUpdate(short *buffer, int length, int stereo);\r
632PICO_INTERNAL void PicoPicoPCMReset(void);\r
633PICO_INTERNAL void PicoPicoPCMRerate(int xpcm_rate);\r
634\r
635// sek.c\r
636PICO_INTERNAL void SekInit(void);\r
637PICO_INTERNAL int SekReset(void);\r
638PICO_INTERNAL void SekState(int *data);\r
639PICO_INTERNAL void SekSetRealTAS(int use_real);\r
640PICO_INTERNAL void SekPackCpu(unsigned char *cpu, int is_sub);\r
641PICO_INTERNAL void SekUnpackCpu(const unsigned char *cpu, int is_sub);\r
642void SekStepM68k(void);\r
643void SekInitIdleDet(void);\r
644void SekFinishIdleDet(void);\r
645#if defined(CPU_CMP_R) || defined(CPU_CMP_W)\r
646void SekTrace(int is_s68k);\r
647#else\r
648#define SekTrace(x)\r
649#endif\r
650\r
651// cd/sek.c\r
652PICO_INTERNAL void SekInitS68k(void);\r
653PICO_INTERNAL int SekResetS68k(void);\r
654PICO_INTERNAL int SekInterruptS68k(int irq);\r
655\r
656// sound/sound.c\r
657PICO_INTERNAL void cdda_start_play();\r
658extern short cdda_out_buffer[2*1152];\r
659extern int PsndLen_exc_cnt;\r
660extern int PsndLen_exc_add;\r
661extern int timer_a_next_oflow, timer_a_step; // in z80 cycles\r
662extern int timer_b_next_oflow, timer_b_step;\r
663\r
664void ym2612_sync_timers(int z80_cycles, int mode_old, int mode_new);\r
665void ym2612_pack_state(void);\r
666void ym2612_unpack_state(void);\r
667\r
668#define TIMER_NO_OFLOW 0x70000000\r
669// tA = 72 * (1024 - NA) / M\r
670#define TIMER_A_TICK_ZCYCLES 17203\r
671// tB = 1152 * (256 - NA) / M\r
672#define TIMER_B_TICK_ZCYCLES 262800 // 275251 broken, see Dai Makaimura\r
673\r
674#define timers_cycle() \\r
675 if (timer_a_next_oflow > 0 && timer_a_next_oflow < TIMER_NO_OFLOW) \\r
676 timer_a_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
677 if (timer_b_next_oflow > 0 && timer_b_next_oflow < TIMER_NO_OFLOW) \\r
678 timer_b_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
679 ym2612_sync_timers(0, ym2612.OPN.ST.mode, ym2612.OPN.ST.mode);\r
680\r
681#define timers_reset() \\r
682 timer_a_next_oflow = timer_b_next_oflow = TIMER_NO_OFLOW; \\r
683 timer_a_step = TIMER_A_TICK_ZCYCLES * 1024; \\r
684 timer_b_step = TIMER_B_TICK_ZCYCLES * 256;\r
685\r
686\r
687// videoport.c\r
688PICO_INTERNAL_ASM void PicoVideoWrite(unsigned int a,unsigned short d);\r
689PICO_INTERNAL_ASM unsigned int PicoVideoRead(unsigned int a);\r
690PICO_INTERNAL_ASM unsigned int PicoVideoRead8(unsigned int a);\r
691extern int (*PicoDmaHook)(unsigned int source, int len, unsigned short **srcp, unsigned short **limitp);\r
692\r
693// misc.c\r
694PICO_INTERNAL_ASM void memcpy16(unsigned short *dest, unsigned short *src, int count);\r
695PICO_INTERNAL_ASM void memcpy16bswap(unsigned short *dest, void *src, int count);\r
696PICO_INTERNAL_ASM void memcpy32(int *dest, int *src, int count); // 32bit word count\r
697PICO_INTERNAL_ASM void memset32(int *dest, int c, int count);\r
698\r
699// eeprom.c\r
700void EEPROM_write8(unsigned int a, unsigned int d);\r
701void EEPROM_write16(unsigned int d);\r
702unsigned int EEPROM_read(void);\r
703\r
704// z80 functionality wrappers\r
705PICO_INTERNAL void z80_init(void);\r
706PICO_INTERNAL void z80_pack(void *data);\r
707PICO_INTERNAL int z80_unpack(const void *data);\r
708PICO_INTERNAL void z80_reset(void);\r
709PICO_INTERNAL void z80_exit(void);\r
710\r
711// cd/misc.c\r
712PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);\r
713PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);\r
714\r
715// cd/buffering.c\r
716PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);\r
717\r
718// sound/sound.c\r
719PICO_INTERNAL void PsndReset(void);\r
720PICO_INTERNAL void PsndDoDAC(int line_to);\r
721PICO_INTERNAL void PsndClear(void);\r
722PICO_INTERNAL void PsndGetSamples(int y);\r
723PICO_INTERNAL void PsndGetSamplesMS(void);\r
724extern int PsndDacLine;\r
725\r
726// sms.c\r
727#ifndef NO_SMS\r
728void PicoPowerMS(void);\r
729void PicoResetMS(void);\r
730void PicoMemSetupMS(void);\r
731void PicoStateLoadedMS(void);\r
732void PicoFrameMS(void);\r
733void PicoFrameDrawOnlyMS(void);\r
734#else\r
735#define PicoPowerMS()\r
736#define PicoResetMS()\r
737#define PicoMemSetupMS()\r
738#define PicoStateLoadedMS()\r
739#define PicoFrameMS()\r
740#define PicoFrameDrawOnlyMS()\r
741#endif\r
742\r
743// 32x/32x.c\r
744#ifndef NO_32X\r
745extern struct Pico32x Pico32x;\r
746enum p32x_event {\r
747 P32X_EVENT_PWM,\r
748 P32X_EVENT_FILLEND,\r
749 P32X_EVENT_COUNT,\r
750};\r
751extern unsigned int event_times[P32X_EVENT_COUNT];\r
752\r
753void Pico32xInit(void);\r
754void PicoPower32x(void);\r
755void PicoReset32x(void);\r
756void Pico32xStartup(void);\r
757void PicoUnload32x(void);\r
758void PicoFrame32x(void);\r
759void Pico32xStateLoaded(int is_early);\r
760void p32x_sync_sh2s(unsigned int m68k_target);\r
761void p32x_sync_other_sh2(SH2 *sh2, unsigned int m68k_target);\r
762void p32x_update_irls(SH2 *active_sh2, int m68k_cycles);\r
763void p32x_reset_sh2s(void);\r
764void p32x_event_schedule(unsigned int now, enum p32x_event event, int after);\r
765void p32x_event_schedule_sh2(SH2 *sh2, enum p32x_event event, int after);\r
766\r
767// 32x/memory.c\r
768struct Pico32xMem *Pico32xMem;\r
769unsigned int PicoRead8_32x(unsigned int a);\r
770unsigned int PicoRead16_32x(unsigned int a);\r
771void PicoWrite8_32x(unsigned int a, unsigned int d);\r
772void PicoWrite16_32x(unsigned int a, unsigned int d);\r
773void PicoMemSetup32x(void);\r
774void Pico32xSwapDRAM(int b);\r
775void Pico32xMemStateLoaded(void);\r
776void p32x_m68k_poll_event(unsigned int flags);\r
777void p32x_sh2_poll_event(SH2 *sh2, unsigned int flags, unsigned int m68k_cycles);\r
778\r
779// 32x/draw.c\r
780void PicoDrawSetOutFormat32x(pdso_t which, int use_32x_line_mode);\r
781void FinalizeLine32xRGB555(int sh, int line);\r
782void PicoDraw32xLayer(int offs, int lines, int mdbg);\r
783void PicoDraw32xLayerMdOnly(int offs, int lines);\r
784extern int (*PicoScan32xBegin)(unsigned int num);\r
785extern int (*PicoScan32xEnd)(unsigned int num);\r
786enum {\r
787 PDM32X_OFF,\r
788 PDM32X_32X_ONLY,\r
789 PDM32X_BOTH,\r
790};\r
791extern int Pico32xDrawMode;\r
792\r
793// 32x/pwm.c\r
794unsigned int p32x_pwm_read16(unsigned int a, SH2 *sh2,\r
795 unsigned int m68k_cycles);\r
796void p32x_pwm_write16(unsigned int a, unsigned int d,\r
797 SH2 *sh2, unsigned int m68k_cycles);\r
798void p32x_pwm_update(int *buf32, int length, int stereo);\r
799void p32x_pwm_ctl_changed(void);\r
800void p32x_pwm_schedule(unsigned int m68k_now);\r
801void p32x_pwm_schedule_sh2(SH2 *sh2);\r
802void p32x_pwm_irq_event(unsigned int m68k_now);\r
803void p32x_pwm_state_loaded(void);\r
804\r
805// 32x/sh2soc.c\r
806void p32x_dreq0_trigger(void);\r
807void p32x_dreq1_trigger(void);\r
808void p32x_timers_recalc(void);\r
809void p32x_timers_do(unsigned int m68k_slice);\r
810void sh2_peripheral_reset(SH2 *sh2);\r
811unsigned int sh2_peripheral_read8(unsigned int a, SH2 *sh2);\r
812unsigned int sh2_peripheral_read16(unsigned int a, SH2 *sh2);\r
813unsigned int sh2_peripheral_read32(unsigned int a, SH2 *sh2);\r
814void sh2_peripheral_write8(unsigned int a, unsigned int d, SH2 *sh2);\r
815void sh2_peripheral_write16(unsigned int a, unsigned int d, SH2 *sh2);\r
816void sh2_peripheral_write32(unsigned int a, unsigned int d, SH2 *sh2);\r
817\r
818#else\r
819#define Pico32xInit()\r
820#define PicoPower32x()\r
821#define PicoReset32x()\r
822#define PicoFrame32x()\r
823#define PicoUnload32x()\r
824#define Pico32xStateLoaded()\r
825#define FinalizeLine32xRGB555 NULL\r
826#define p32x_pwm_update(...)\r
827#define p32x_timers_recalc()\r
828#endif\r
829\r
830/* avoid dependency on newer glibc */\r
831static __inline int isspace_(int c)\r
832{\r
833 return (0x09 <= c && c <= 0x0d) || c == ' ';\r
834}\r
835\r
836#ifndef ARRAY_SIZE\r
837#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))\r
838#endif\r
839\r
840// emulation event logging\r
841#ifndef EL_LOGMASK\r
842# ifdef __x86_64__ // HACK\r
843# define EL_LOGMASK (EL_STATUS|EL_IDLE|EL_ANOMALY)\r
844# else\r
845# define EL_LOGMASK (EL_STATUS)\r
846# endif\r
847#endif\r
848\r
849#define EL_HVCNT 0x00000001 /* hv counter reads */\r
850#define EL_SR 0x00000002 /* SR reads */\r
851#define EL_INTS 0x00000004 /* ints and acks */\r
852#define EL_YMTIMER 0x00000008 /* ym2612 timer stuff */\r
853#define EL_INTSW 0x00000010 /* log irq switching on/off */\r
854#define EL_ASVDP 0x00000020 /* VDP accesses during active scan */\r
855#define EL_VDPDMA 0x00000040 /* VDP DMA transfers and their timing */\r
856#define EL_BUSREQ 0x00000080 /* z80 busreq r/w or reset w */\r
857#define EL_Z80BNK 0x00000100 /* z80 i/o through bank area */\r
858#define EL_SRAMIO 0x00000200 /* sram i/o */\r
859#define EL_EEPROM 0x00000400 /* eeprom debug */\r
860#define EL_UIO 0x00000800 /* unmapped i/o */\r
861#define EL_IO 0x00001000 /* all i/o */\r
862#define EL_CDPOLL 0x00002000 /* MCD: log poll detection */\r
863#define EL_SVP 0x00004000 /* SVP stuff */\r
864#define EL_PICOHW 0x00008000 /* Pico stuff */\r
865#define EL_IDLE 0x00010000 /* idle loop det. */\r
866#define EL_CDREGS 0x00020000 /* MCD: register access */\r
867#define EL_CDREG3 0x00040000 /* MCD: register 3 only */\r
868#define EL_32X 0x00080000\r
869#define EL_PWM 0x00100000 /* 32X PWM stuff (LOTS of output) */\r
870#define EL_32XP 0x00200000 /* 32X peripherals */\r
871\r
872#define EL_STATUS 0x40000000 /* status messages */\r
873#define EL_ANOMALY 0x80000000 /* some unexpected conditions (during emulation) */\r
874\r
875#if EL_LOGMASK\r
876#define elprintf(w,f,...) \\r
877do { \\r
878 if ((w) & EL_LOGMASK) \\r
879 lprintf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__); \\r
880} while (0)\r
881#elif defined(_MSC_VER)\r
882#define elprintf\r
883#else\r
884#define elprintf(w,f,...)\r
885#endif\r
886\r
887// profiling\r
888#ifdef PPROF\r
889#include <platform/linux/pprof.h>\r
890#else\r
891#define pprof_init()\r
892#define pprof_finish()\r
893#define pprof_start(x)\r
894#define pprof_end(...)\r
895#define pprof_end_sub(...)\r
896#endif\r
897\r
898#ifdef EVT_LOG\r
899enum evt {\r
900 EVT_FRAME_START,\r
901 EVT_NEXT_LINE,\r
902 EVT_RUN_START,\r
903 EVT_RUN_END,\r
904 EVT_POLL_START,\r
905 EVT_POLL_END,\r
906 EVT_CNT\r
907};\r
908\r
909enum evt_cpu {\r
910 EVT_M68K,\r
911 EVT_S68K,\r
912 EVT_MSH2,\r
913 EVT_SSH2,\r
914 EVT_CPU_CNT\r
915};\r
916\r
917void pevt_log(unsigned int cycles, enum evt_cpu c, enum evt e);\r
918void pevt_dump(void);\r
919\r
920#define pevt_log_m68k(e) \\r
921 pevt_log(SekCyclesDoneT(), EVT_M68K, e)\r
922#define pevt_log_m68k_o(e) \\r
923 pevt_log(SekCyclesDoneT2(), EVT_M68K, e)\r
924#define pevt_log_sh2(sh2, e) \\r
925 pevt_log(sh2_cycles_done_m68k(sh2), EVT_MSH2 + (sh2)->is_slave, e)\r
926#define pevt_log_sh2_o(sh2, e) \\r
927 pevt_log((sh2)->m68krcycles_done, EVT_MSH2 + (sh2)->is_slave, e)\r
928#else\r
929#define pevt_log(c, e)\r
930#define pevt_log_m68k(e)\r
931#define pevt_log_m68k_o(e)\r
932#define pevt_log_sh2(sh2, e)\r
933#define pevt_log_sh2_o(sh2, e)\r
934#define pevt_dump()\r
935#endif\r
936\r
937// misc\r
938#ifdef _MSC_VER\r
939#define cdprintf\r
940#else\r
941#define cdprintf(x...)\r
942#endif\r
943\r
944#ifdef __i386__\r
945#define REGPARM(x) __attribute__((regparm(x)))\r
946#else\r
947#define REGPARM(x)\r
948#endif\r
949\r
950#ifdef __GNUC__\r
951#define NOINLINE __attribute__((noinline))\r
952#else\r
953#define NOINLINE\r
954#endif\r
955\r
956#ifdef __cplusplus\r
957} // End of extern "C"\r
958#endif\r
959\r
960#endif // PICO_INTERNAL_INCLUDED\r
961\r