rework sh2 sync, again..
[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 SekSr CycloneGetSr(&PicoCpuCM68k)\r
51#define SekSetStop(x) { PicoCpuCM68k.state_flags&=~1; if (x) { PicoCpuCM68k.state_flags|=1; PicoCpuCM68k.cycles=0; } }\r
52#define SekSetStopS68k(x) { PicoCpuCS68k.state_flags&=~1; if (x) { PicoCpuCS68k.state_flags|=1; PicoCpuCS68k.cycles=0; } }\r
53#define SekIsStoppedM68k() (PicoCpuCM68k.state_flags&1)\r
54#define SekIsStoppedS68k() (PicoCpuCS68k.state_flags&1)\r
55#define SekShouldInterrupt (PicoCpuCM68k.irq > (PicoCpuCM68k.srh&7))\r
56\r
57#define SekInterrupt(i) PicoCpuCM68k.irq=i\r
58#define SekIrqLevel PicoCpuCM68k.irq\r
59\r
60#ifdef EMU_M68K\r
61#define EMU_CORE_DEBUG\r
62#endif\r
63#endif\r
64\r
65#ifdef EMU_F68K\r
66#include "../cpu/fame/fame.h"\r
67extern M68K_CONTEXT PicoCpuFM68k, PicoCpuFS68k;\r
68#define SekCyclesLeftNoMCD PicoCpuFM68k.io_cycle_counter\r
69#define SekCyclesLeft \\r
70 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
71#define SekCyclesLeftS68k \\r
72 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuFS68k.io_cycle_counter)\r
73#define SekEndTimeslice(after) PicoCpuFM68k.io_cycle_counter=after\r
74#define SekEndTimesliceS68k(after) PicoCpuFS68k.io_cycle_counter=after\r
75#define SekPc fm68k_get_pc(&PicoCpuFM68k)\r
76#define SekPcS68k fm68k_get_pc(&PicoCpuFS68k)\r
77#define SekDar(x) (x < 8 ? PicoCpuFM68k.dreg[x].D : PicoCpuFM68k.areg[x - 8].D)\r
78#define SekSr PicoCpuFM68k.sr\r
79#define SekSetStop(x) { \\r
80 PicoCpuFM68k.execinfo &= ~FM68K_HALTED; \\r
81 if (x) { PicoCpuFM68k.execinfo |= FM68K_HALTED; PicoCpuFM68k.io_cycle_counter = 0; } \\r
82}\r
83#define SekSetStopS68k(x) { \\r
84 PicoCpuFS68k.execinfo &= ~FM68K_HALTED; \\r
85 if (x) { PicoCpuFS68k.execinfo |= FM68K_HALTED; PicoCpuFS68k.io_cycle_counter = 0; } \\r
86}\r
87#define SekIsStoppedM68k() (PicoCpuFM68k.execinfo&FM68K_HALTED)\r
88#define SekIsStoppedS68k() (PicoCpuFS68k.execinfo&FM68K_HALTED)\r
89#define SekShouldInterrupt fm68k_would_interrupt()\r
90\r
91#define SekInterrupt(irq) PicoCpuFM68k.interrupts[0]=irq\r
92#define SekIrqLevel PicoCpuFM68k.interrupts[0]\r
93\r
94#ifdef EMU_M68K\r
95#define EMU_CORE_DEBUG\r
96#endif\r
97#endif\r
98\r
99#ifdef EMU_M68K\r
100#include "../cpu/musashi/m68kcpu.h"\r
101extern m68ki_cpu_core PicoCpuMM68k, PicoCpuMS68k;\r
102#ifndef SekCyclesLeft\r
103#define SekCyclesLeftNoMCD PicoCpuMM68k.cyc_remaining_cycles\r
104#define SekCyclesLeft \\r
105 (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)\r
106#define SekCyclesLeftS68k \\r
107 ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuMS68k.cyc_remaining_cycles)\r
108#define SekEndTimeslice(after) SET_CYCLES(after)\r
109#define SekEndTimesliceS68k(after) PicoCpuMS68k.cyc_remaining_cycles=after\r
110#define SekPc m68k_get_reg(&PicoCpuMM68k, M68K_REG_PC)\r
111#define SekPcS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_PC)\r
112#define SekDar(x) PicoCpuMM68k.dar[x]\r
113#define SekSr m68k_get_reg(&PicoCpuMM68k, M68K_REG_SR)\r
114#define SekSetStop(x) { \\r
115 if(x) { SET_CYCLES(0); PicoCpuMM68k.stopped=STOP_LEVEL_STOP; } \\r
116 else PicoCpuMM68k.stopped=0; \\r
117}\r
118#define SekSetStopS68k(x) { \\r
119 if(x) { SET_CYCLES(0); PicoCpuMS68k.stopped=STOP_LEVEL_STOP; } \\r
120 else PicoCpuMS68k.stopped=0; \\r
121}\r
122#define SekIsStoppedM68k() (PicoCpuMM68k.stopped==STOP_LEVEL_STOP)\r
123#define SekIsStoppedS68k() (PicoCpuMS68k.stopped==STOP_LEVEL_STOP)\r
124#define SekShouldInterrupt (CPU_INT_LEVEL > FLAG_INT_MASK)\r
125\r
126#define SekInterrupt(irq) { \\r
127 void *oldcontext = m68ki_cpu_p; \\r
128 m68k_set_context(&PicoCpuMM68k); \\r
129 m68k_set_irq(irq); \\r
130 m68k_set_context(oldcontext); \\r
131}\r
132#define SekIrqLevel (PicoCpuMM68k.int_level >> 8)\r
133\r
134#endif\r
135#endif // EMU_M68K\r
136\r
137extern int SekCycleCnt; // cycles done in this frame\r
138extern int SekCycleAim; // cycle aim\r
139extern unsigned int SekCycleCntT; // total cycle counter, updated once per frame\r
140\r
141#define SekCyclesReset() { \\r
142 SekCycleCntT+=SekCycleAim; \\r
143 SekCycleCnt-=SekCycleAim; \\r
144 SekCycleAim=0; \\r
145}\r
146#define SekCyclesBurn(c) SekCycleCnt+=c\r
147#define SekCyclesDone() (SekCycleAim-SekCyclesLeft) // number of cycles done in this frame (can be checked anywhere)\r
148#define SekCyclesDoneT() (SekCycleCntT+SekCyclesDone()) // total nuber of cycles done for this rom\r
149#define SekCyclesDoneT2() (SekCycleCntT + SekCycleCnt) // same as above but not from memhandlers\r
150\r
151#define SekEndRun(after) { \\r
152 SekCycleCnt -= SekCyclesLeft - (after); \\r
153 if (SekCycleCnt < 0) SekCycleCnt = 0; \\r
154 SekEndTimeslice(after); \\r
155}\r
156\r
157#define SekEndRunS68k(after) { \\r
158 SekCycleCntS68k -= SekCyclesLeftS68k - (after); \\r
159 if (SekCycleCntS68k < 0) SekCycleCntS68k = 0; \\r
160 SekEndTimesliceS68k(after); \\r
161}\r
162\r
163extern int SekCycleCntS68k;\r
164extern int SekCycleAimS68k;\r
165\r
166#define SekCyclesResetS68k() { \\r
167 SekCycleCntS68k-=SekCycleAimS68k; \\r
168 SekCycleAimS68k=0; \\r
169}\r
170#define SekCyclesDoneS68k() (SekCycleAimS68k-SekCyclesLeftS68k)\r
171\r
172#ifdef EMU_CORE_DEBUG\r
173extern int dbg_irq_level;\r
174#undef SekEndTimeslice\r
175#undef SekCyclesBurn\r
176#undef SekEndRun\r
177#undef SekInterrupt\r
178#define SekEndTimeslice(c)\r
179#define SekCyclesBurn(c) c\r
180#define SekEndRun(c)\r
181#define SekInterrupt(irq) dbg_irq_level=irq\r
182#endif\r
183\r
184// ----------------------- Z80 CPU -----------------------\r
185\r
186#if defined(_USE_DRZ80)\r
187#include "../cpu/DrZ80/drz80.h"\r
188\r
189extern struct DrZ80 drZ80;\r
190\r
191#define z80_run(cycles) ((cycles) - DrZ80Run(&drZ80, cycles))\r
192#define z80_run_nr(cycles) DrZ80Run(&drZ80, cycles)\r
193#define z80_int() drZ80.Z80_IRQ = 1\r
194\r
195#define z80_cyclesLeft drZ80.cycles\r
196#define z80_pc() (drZ80.Z80PC - drZ80.Z80PC_BASE)\r
197\r
198#elif defined(_USE_CZ80)\r
199#include "../cpu/cz80/cz80.h"\r
200\r
201#define z80_run(cycles) Cz80_Exec(&CZ80, cycles)\r
202#define z80_run_nr(cycles) Cz80_Exec(&CZ80, cycles)\r
203#define z80_int() Cz80_Set_IRQ(&CZ80, 0, HOLD_LINE)\r
204\r
205#define z80_cyclesLeft (CZ80.ICount - CZ80.ExtraCycles)\r
206#define z80_pc() Cz80_Get_Reg(&CZ80, CZ80_PC)\r
207\r
208#else\r
209\r
210#define z80_run(cycles) (cycles)\r
211#define z80_run_nr(cycles)\r
212#define z80_int()\r
213\r
214#endif\r
215\r
216#define Z80_STATE_SIZE 0x60\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 sh2_end_run(sh2, after_) do { \\r
242 if ((sh2)->icount > (after_)) { \\r
243 (sh2)->cycles_timeslice -= (sh2)->icount; \\r
244 (sh2)->icount = after_; \\r
245 } \\r
246} while (0)\r
247# define sh2_cycles_left(sh2) (sh2)->icount\r
248# define sh2_pc(c) (c) ? ssh2.ppc : msh2.ppc\r
249#else\r
250# define sh2_end_run(sh2, after_) do { \\r
251 int left_ = (signed int)(sh2)->sr >> 12; \\r
252 if (left_ > (after_)) { \\r
253 (sh2)->cycles_timeslice -= left_; \\r
254 (sh2)->sr &= 0xfff; \\r
255 (sh2)->sr |= (after_) << 12; \\r
256 } \\r
257} while (0)\r
258# define sh2_cycles_left(sh2) ((signed int)(sh2)->sr >> 12)\r
259# define sh2_pc(c) (c) ? ssh2.pc : msh2.pc\r
260#endif\r
261\r
262#define sh2_cycles_done(sh2) ((int)(sh2)->cycles_timeslice - sh2_cycles_left(sh2))\r
263#define sh2_cycles_done_m68k(sh2) \\r
264 ((sh2)->m68krcycles_done + (sh2_cycles_done(sh2) / 3))\r
265\r
266#define sh2_reg(c, x) (c) ? ssh2.r[x] : msh2.r[x]\r
267#define sh2_gbr(c) (c) ? ssh2.gbr : msh2.gbr\r
268#define sh2_vbr(c) (c) ? ssh2.vbr : msh2.vbr\r
269#define sh2_sr(c) (((c) ? ssh2.sr : msh2.sr) & 0xfff)\r
270\r
271#define sh2_set_gbr(c, v) \\r
272 { if (c) ssh2.gbr = v; else msh2.gbr = v; }\r
273#define sh2_set_vbr(c, v) \\r
274 { if (c) ssh2.vbr = v; else msh2.vbr = v; }\r
275\r
276// ---------------------------------------------------------\r
277\r
278// main oscillator clock which controls timing\r
279#define OSC_NTSC 53693100\r
280#define OSC_PAL 53203424\r
281\r
282struct PicoVideo\r
283{\r
284 unsigned char reg[0x20];\r
285 unsigned int command; // 32-bit Command\r
286 unsigned char pending; // 1 if waiting for second half of 32-bit command\r
287 unsigned char type; // Command type (v/c/vsram read/write)\r
288 unsigned short addr; // Read/Write address\r
289 int status; // Status bits\r
290 unsigned char pending_ints; // pending interrupts: ??VH????\r
291 signed char lwrite_cnt; // VDP write count during active display line\r
292 unsigned short v_counter; // V-counter\r
293 unsigned char pad[0x10];\r
294};\r
295\r
296struct PicoMisc\r
297{\r
298 unsigned char rotate;\r
299 unsigned char z80Run;\r
300 unsigned char padTHPhase[2]; // 02 phase of gamepad TH switches\r
301 unsigned short scanline; // 04 0 to 261||311\r
302 char dirtyPal; // 06 Is the palette dirty (1 - change @ this frame, 2 - some time before)\r
303 unsigned char hardware; // 07 Hardware value for country\r
304 unsigned char pal; // 08 1=PAL 0=NTSC\r
305 unsigned char sram_reg; // 09 SRAM reg. See SRR_* below\r
306 unsigned short z80_bank68k; // 0a\r
307 unsigned short pad0;\r
308 unsigned char pad1;\r
309 unsigned char z80_reset; // 0f z80 reset held\r
310 unsigned char padDelay[2]; // 10 gamepad phase time outs, so we count a delay\r
311 unsigned short eeprom_addr; // EEPROM address register\r
312 unsigned char eeprom_cycle; // EEPROM cycle number\r
313 unsigned char eeprom_slave; // EEPROM slave word for X24C02 and better SRAMs\r
314 unsigned char eeprom_status;\r
315 unsigned char pad2;\r
316 unsigned short dma_xfers; // 18\r
317 unsigned char eeprom_wb[2]; // EEPROM latch/write buffer\r
318 unsigned int frame_count; // 1c for movies and idle det\r
319};\r
320\r
321struct PicoMS\r
322{\r
323 unsigned char carthw[0x10];\r
324 unsigned char io_ctl;\r
325 unsigned char pad[0x4f];\r
326};\r
327\r
328// some assembly stuff depend on these, do not touch!\r
329struct Pico\r
330{\r
331 unsigned char ram[0x10000]; // 0x00000 scratch ram\r
332 union { // vram is byteswapped for easier reads when drawing\r
333 unsigned short vram[0x8000]; // 0x10000\r
334 unsigned char vramb[0x4000]; // VRAM in SMS mode\r
335 };\r
336 unsigned char zram[0x2000]; // 0x20000 Z80 ram\r
337 unsigned char ioports[0x10]; // XXX: fix asm and mv\r
338 unsigned char pad[0xf0]; // unused\r
339 unsigned short cram[0x40]; // 0x22100\r
340 unsigned short vsram[0x40]; // 0x22180\r
341\r
342 unsigned char *rom; // 0x22200\r
343 unsigned int romsize; // 0x22204\r
344\r
345 struct PicoMisc m;\r
346 struct PicoVideo video;\r
347 struct PicoMS ms;\r
348};\r
349\r
350// sram\r
351#define SRR_MAPPED (1 << 0)\r
352#define SRR_READONLY (1 << 1)\r
353\r
354#define SRF_ENABLED (1 << 0)\r
355#define SRF_EEPROM (1 << 1)\r
356\r
357struct PicoSRAM\r
358{\r
359 unsigned char *data; // actual data\r
360 unsigned int start; // start address in 68k address space\r
361 unsigned int end;\r
362 unsigned char flags; // 0c: SRF_*\r
363 unsigned char unused2;\r
364 unsigned char changed;\r
365 unsigned char eeprom_type; // eeprom type: 0: 7bit (24C01), 2: 2 addr words (X24C02+), 3: 3 addr words\r
366 unsigned char unused3;\r
367 unsigned char eeprom_bit_cl; // bit number for cl\r
368 unsigned char eeprom_bit_in; // bit number for in\r
369 unsigned char eeprom_bit_out; // bit number for out\r
370 unsigned int size;\r
371};\r
372\r
373// MCD\r
374#include "cd/cd_sys.h"\r
375#include "cd/LC89510.h"\r
376#include "cd/gfx_cd.h"\r
377\r
378struct mcd_pcm\r
379{\r
380 unsigned char control; // reg7\r
381 unsigned char enabled; // reg8\r
382 unsigned char cur_ch;\r
383 unsigned char bank;\r
384 int pad1;\r
385\r
386 struct pcm_chan // 08, size 0x10\r
387 {\r
388 unsigned char regs[8];\r
389 unsigned int addr; // .08: played sample address\r
390 int pad;\r
391 } ch[8];\r
392};\r
393\r
394struct mcd_misc\r
395{\r
396 unsigned short hint_vector;\r
397 unsigned char busreq;\r
398 unsigned char s68k_pend_ints;\r
399 unsigned int state_flags; // 04: emu state: reset_pending\r
400 unsigned int counter75hz;\r
401 unsigned int pad0;\r
402 int timer_int3; // 10\r
403 unsigned int timer_stopwatch;\r
404 unsigned char bcram_reg; // 18: battery-backed RAM cart register\r
405 unsigned char pad2;\r
406 unsigned short pad3;\r
407 int pad[9];\r
408};\r
409\r
410typedef struct\r
411{\r
412 unsigned char bios[0x20000]; // 000000: 128K\r
413 union { // 020000: 512K\r
414 unsigned char prg_ram[0x80000];\r
415 unsigned char prg_ram_b[4][0x20000];\r
416 };\r
417 union { // 0a0000: 256K\r
418 struct {\r
419 unsigned char word_ram2M[0x40000];\r
420 unsigned char unused0[0x20000];\r
421 };\r
422 struct {\r
423 unsigned char unused1[0x20000];\r
424 unsigned char word_ram1M[2][0x20000];\r
425 };\r
426 };\r
427 union { // 100000: 64K\r
428 unsigned char pcm_ram[0x10000];\r
429 unsigned char pcm_ram_b[0x10][0x1000];\r
430 };\r
431 unsigned char s68k_regs[0x200]; // 110000: GA, not CPU regs\r
432 unsigned char bram[0x2000]; // 110200: 8K\r
433 struct mcd_misc m; // 112200: misc\r
434 struct mcd_pcm pcm; // 112240:\r
435 _scd_toc TOC; // not to be saved\r
436 CDD cdd;\r
437 CDC cdc;\r
438 _scd scd;\r
439 Rot_Comp rot_comp;\r
440} mcd_state;\r
441\r
442// XXX: this will need to be reworked for cart+cd support.\r
443#define Pico_mcd ((mcd_state *)Pico.rom)\r
444\r
445// 32X\r
446#define P32XS_FM (1<<15)\r
447#define P32XS_REN (1<< 7)\r
448#define P32XS_nRES (1<< 1)\r
449#define P32XS_ADEN (1<< 0)\r
450#define P32XS2_ADEN (1<< 9)\r
451#define P32XS_FULL (1<< 7) // DREQ FIFO full\r
452#define P32XS_68S (1<< 2)\r
453#define P32XS_DMA (1<< 1)\r
454#define P32XS_RV (1<< 0)\r
455\r
456#define P32XV_nPAL (1<<15) // VDP\r
457#define P32XV_PRI (1<< 7)\r
458#define P32XV_Mx (3<< 0) // display mode mask\r
459\r
460#define P32XV_SFT (1<< 0)\r
461\r
462#define P32XV_VBLK (1<<15)\r
463#define P32XV_HBLK (1<<14)\r
464#define P32XV_PEN (1<<13)\r
465#define P32XV_nFEN (1<< 1)\r
466#define P32XV_FS (1<< 0)\r
467\r
468#define P32XP_FULL (1<<15) // PWM\r
469#define P32XP_EMPTY (1<<14)\r
470\r
471#define P32XF_68KCPOLL (1 << 0)\r
472#define P32XF_68KVPOLL (1 << 1)\r
473#define P32XF_PWM_PEND (1 << 6)\r
474\r
475#define P32XI_VRES (1 << 14/2) // IRL/2\r
476#define P32XI_VINT (1 << 12/2)\r
477#define P32XI_HINT (1 << 10/2)\r
478#define P32XI_CMD (1 << 8/2)\r
479#define P32XI_PWM (1 << 6/2)\r
480\r
481// peripheral reg access\r
482#define PREG8(regs,offs) ((unsigned char *)regs)[offs ^ 3]\r
483\r
484// real one is 4*2, but we use more because we don't lockstep\r
485#define DMAC_FIFO_LEN (4*4)\r
486#define PWM_BUFF_LEN 1024 // in one channel samples\r
487\r
488#define SH2_DRCBLK_RAM_SHIFT 1\r
489#define SH2_DRCBLK_DA_SHIFT 1\r
490\r
491#define SH2_WRITE_SHIFT 25\r
492\r
493struct Pico32x\r
494{\r
495 unsigned short regs[0x20];\r
496 unsigned short vdp_regs[0x10]; // 0x40\r
497 unsigned short sh2_regs[3]; // 0x60\r
498 unsigned char pending_fb;\r
499 unsigned char dirty_pal;\r
500 unsigned int emu_flags;\r
501 unsigned char sh2irq_mask[2];\r
502 unsigned char sh2irqi[2]; // individual\r
503 unsigned int sh2irqs; // common irqs\r
504 unsigned short dmac_fifo[DMAC_FIFO_LEN];\r
505 unsigned int dmac_ptr;\r
506 unsigned int pwm_irq_sample_cnt;\r
507 unsigned char comm_dirty_68k;\r
508 unsigned char comm_dirty_sh2;\r
509 unsigned short pad;\r
510 unsigned int reserved[8];\r
511};\r
512\r
513struct Pico32xMem\r
514{\r
515 unsigned char sdram[0x40000];\r
516#ifdef DRC_SH2\r
517 unsigned short drcblk_ram[1 << (18 - SH2_DRCBLK_RAM_SHIFT)];\r
518#endif\r
519 unsigned short dram[2][0x20000/2]; // AKA fb\r
520 union {\r
521 unsigned char m68k_rom[0x100];\r
522 unsigned char m68k_rom_bank[0x10000]; // M68K_BANK_SIZE\r
523 };\r
524 unsigned char data_array[2][0x1000]; // cache in SH2s (can be used as RAM)\r
525#ifdef DRC_SH2\r
526 unsigned short drcblk_da[2][1 << (12 - SH2_DRCBLK_DA_SHIFT)];\r
527#endif\r
528 unsigned char sh2_rom_m[0x800];\r
529 unsigned char sh2_rom_s[0x400];\r
530 unsigned short pal[0x100];\r
531 unsigned short pal_native[0x100]; // converted to native (for renderer)\r
532 unsigned int sh2_peri_regs[2][0x200/4]; // periphereal regs of SH2s\r
533 signed short pwm[2*PWM_BUFF_LEN]; // PWM buffer for current frame\r
534};\r
535\r
536// area.c\r
537extern void (*PicoLoadStateHook)(void);\r
538\r
539typedef struct {\r
540 int chunk;\r
541 int size;\r
542 void *ptr;\r
543} carthw_state_chunk;\r
544extern carthw_state_chunk *carthw_chunks;\r
545#define CHUNK_CARTHW 64\r
546\r
547// cart.c\r
548extern int PicoCartResize(int newsize);\r
549extern void Byteswap(void *dst, const void *src, int len);\r
550extern void (*PicoCartMemSetup)(void);\r
551extern void (*PicoCartUnloadHook)(void);\r
552\r
553// debug.c\r
554int CM_compareRun(int cyc, int is_sub);\r
555\r
556// draw.c\r
557PICO_INTERNAL void PicoFrameStart(void);\r
558void PicoDrawSync(int to, int blank_last_line);\r
559void BackFill(int reg7, int sh);\r
560void FinalizeLine555(int sh, int line);\r
561extern int (*PicoScanBegin)(unsigned int num);\r
562extern int (*PicoScanEnd)(unsigned int num);\r
563extern int DrawScanline;\r
564#define MAX_LINE_SPRITES 29\r
565extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];\r
566extern void *DrawLineDestBase;\r
567extern int DrawLineDestIncrement;\r
568\r
569// draw2.c\r
570PICO_INTERNAL void PicoFrameFull();\r
571\r
572// mode4.c\r
573void PicoFrameStartMode4(void);\r
574void PicoLineMode4(int line);\r
575void PicoDoHighPal555M4(void);\r
576void PicoDrawSetOutputMode4(pdso_t which);\r
577\r
578// memory.c\r
579PICO_INTERNAL void PicoMemSetup(void);\r
580unsigned int PicoRead8_io(unsigned int a);\r
581unsigned int PicoRead16_io(unsigned int a);\r
582void PicoWrite8_io(unsigned int a, unsigned int d);\r
583void PicoWrite16_io(unsigned int a, unsigned int d);\r
584\r
585// pico/memory.c\r
586PICO_INTERNAL void PicoMemSetupPico(void);\r
587\r
588// cd/memory.c\r
589PICO_INTERNAL void PicoMemSetupCD(void);\r
590void PicoMemStateLoaded(void);\r
591\r
592// pico.c\r
593extern struct Pico Pico;\r
594extern struct PicoSRAM SRam;\r
595extern int PicoPadInt[2];\r
596extern int emustatus;\r
597extern int scanlines_total;\r
598extern void (*PicoResetHook)(void);\r
599extern void (*PicoLineHook)(void);\r
600PICO_INTERNAL int CheckDMA(void);\r
601PICO_INTERNAL void PicoDetectRegion(void);\r
602PICO_INTERNAL void PicoSyncZ80(int m68k_cycles_done);\r
603\r
604// cd/pico.c\r
605PICO_INTERNAL void PicoInitMCD(void);\r
606PICO_INTERNAL void PicoExitMCD(void);\r
607PICO_INTERNAL void PicoPowerMCD(void);\r
608PICO_INTERNAL int PicoResetMCD(void);\r
609PICO_INTERNAL void PicoFrameMCD(void);\r
610\r
611// pico/pico.c\r
612PICO_INTERNAL void PicoInitPico(void);\r
613PICO_INTERNAL void PicoReratePico(void);\r
614\r
615// pico/xpcm.c\r
616PICO_INTERNAL void PicoPicoPCMUpdate(short *buffer, int length, int stereo);\r
617PICO_INTERNAL void PicoPicoPCMReset(void);\r
618PICO_INTERNAL void PicoPicoPCMRerate(int xpcm_rate);\r
619\r
620// sek.c\r
621PICO_INTERNAL void SekInit(void);\r
622PICO_INTERNAL int SekReset(void);\r
623PICO_INTERNAL void SekState(int *data);\r
624PICO_INTERNAL void SekSetRealTAS(int use_real);\r
625PICO_INTERNAL void SekPackCpu(unsigned char *cpu, int is_sub);\r
626PICO_INTERNAL void SekUnpackCpu(const unsigned char *cpu, int is_sub);\r
627void SekStepM68k(void);\r
628void SekInitIdleDet(void);\r
629void SekFinishIdleDet(void);\r
630\r
631// cd/sek.c\r
632PICO_INTERNAL void SekInitS68k(void);\r
633PICO_INTERNAL int SekResetS68k(void);\r
634PICO_INTERNAL int SekInterruptS68k(int irq);\r
635\r
636// sound/sound.c\r
637PICO_INTERNAL void cdda_start_play();\r
638extern short cdda_out_buffer[2*1152];\r
639extern int PsndLen_exc_cnt;\r
640extern int PsndLen_exc_add;\r
641extern int timer_a_next_oflow, timer_a_step; // in z80 cycles\r
642extern int timer_b_next_oflow, timer_b_step;\r
643\r
644void ym2612_sync_timers(int z80_cycles, int mode_old, int mode_new);\r
645void ym2612_pack_state(void);\r
646void ym2612_unpack_state(void);\r
647\r
648#define TIMER_NO_OFLOW 0x70000000\r
649// tA = 72 * (1024 - NA) / M\r
650#define TIMER_A_TICK_ZCYCLES 17203\r
651// tB = 1152 * (256 - NA) / M\r
652#define TIMER_B_TICK_ZCYCLES 262800 // 275251 broken, see Dai Makaimura\r
653\r
654#define timers_cycle() \\r
655 if (timer_a_next_oflow > 0 && timer_a_next_oflow < TIMER_NO_OFLOW) \\r
656 timer_a_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
657 if (timer_b_next_oflow > 0 && timer_b_next_oflow < TIMER_NO_OFLOW) \\r
658 timer_b_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
659 ym2612_sync_timers(0, ym2612.OPN.ST.mode, ym2612.OPN.ST.mode);\r
660\r
661#define timers_reset() \\r
662 timer_a_next_oflow = timer_b_next_oflow = TIMER_NO_OFLOW; \\r
663 timer_a_step = TIMER_A_TICK_ZCYCLES * 1024; \\r
664 timer_b_step = TIMER_B_TICK_ZCYCLES * 256;\r
665\r
666\r
667// videoport.c\r
668PICO_INTERNAL_ASM void PicoVideoWrite(unsigned int a,unsigned short d);\r
669PICO_INTERNAL_ASM unsigned int PicoVideoRead(unsigned int a);\r
670PICO_INTERNAL_ASM unsigned int PicoVideoRead8(unsigned int a);\r
671extern int (*PicoDmaHook)(unsigned int source, int len, unsigned short **srcp, unsigned short **limitp);\r
672\r
673// misc.c\r
674PICO_INTERNAL_ASM void memcpy16(unsigned short *dest, unsigned short *src, int count);\r
675PICO_INTERNAL_ASM void memcpy16bswap(unsigned short *dest, void *src, int count);\r
676PICO_INTERNAL_ASM void memcpy32(int *dest, int *src, int count); // 32bit word count\r
677PICO_INTERNAL_ASM void memset32(int *dest, int c, int count);\r
678\r
679// eeprom.c\r
680void EEPROM_write8(unsigned int a, unsigned int d);\r
681void EEPROM_write16(unsigned int d);\r
682unsigned int EEPROM_read(void);\r
683\r
684// z80 functionality wrappers\r
685PICO_INTERNAL void z80_init(void);\r
686PICO_INTERNAL void z80_pack(void *data);\r
687PICO_INTERNAL int z80_unpack(const void *data);\r
688PICO_INTERNAL void z80_reset(void);\r
689PICO_INTERNAL void z80_exit(void);\r
690\r
691// cd/misc.c\r
692PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);\r
693PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);\r
694\r
695// cd/buffering.c\r
696PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);\r
697\r
698// sound/sound.c\r
699PICO_INTERNAL void PsndReset(void);\r
700PICO_INTERNAL void PsndDoDAC(int line_to);\r
701PICO_INTERNAL void PsndClear(void);\r
702PICO_INTERNAL void PsndGetSamples(int y);\r
703PICO_INTERNAL void PsndGetSamplesMS(void);\r
704extern int PsndDacLine;\r
705\r
706// sms.c\r
707#ifndef NO_SMS\r
708void PicoPowerMS(void);\r
709void PicoResetMS(void);\r
710void PicoMemSetupMS(void);\r
711void PicoStateLoadedMS(void);\r
712void PicoFrameMS(void);\r
713void PicoFrameDrawOnlyMS(void);\r
714#else\r
715#define PicoPowerMS()\r
716#define PicoResetMS()\r
717#define PicoMemSetupMS()\r
718#define PicoStateLoadedMS()\r
719#define PicoFrameMS()\r
720#define PicoFrameDrawOnlyMS()\r
721#endif\r
722\r
723// 32x/32x.c\r
724#ifndef NO_32X\r
725extern struct Pico32x Pico32x;\r
726enum p32x_event {\r
727 P32X_EVENT_PWM,\r
728 P32X_EVENT_FILLEND,\r
729 P32X_EVENT_COUNT,\r
730};\r
731extern unsigned int event_times[P32X_EVENT_COUNT];\r
732\r
733void Pico32xInit(void);\r
734void PicoPower32x(void);\r
735void PicoReset32x(void);\r
736void Pico32xStartup(void);\r
737void PicoUnload32x(void);\r
738void PicoFrame32x(void);\r
739void Pico32xStateLoaded(int is_early);\r
740void p32x_sync_sh2s(unsigned int m68k_target);\r
741void p32x_sync_other_sh2(SH2 *sh2, unsigned int m68k_target);\r
742void p32x_update_irls(SH2 *active_sh2);\r
743void p32x_reset_sh2s(void);\r
744void p32x_event_schedule(unsigned int now, enum p32x_event event, int after);\r
745void p32x_event_schedule_sh2(SH2 *sh2, enum p32x_event event, int after);\r
746\r
747// 32x/memory.c\r
748struct Pico32xMem *Pico32xMem;\r
749unsigned int PicoRead8_32x(unsigned int a);\r
750unsigned int PicoRead16_32x(unsigned int a);\r
751void PicoWrite8_32x(unsigned int a, unsigned int d);\r
752void PicoWrite16_32x(unsigned int a, unsigned int d);\r
753void PicoMemSetup32x(void);\r
754void Pico32xSwapDRAM(int b);\r
755void Pico32xMemStateLoaded(void);\r
756void p32x_m68k_poll_event(unsigned int flags);\r
757void p32x_sh2_poll_event(SH2 *sh2, unsigned int flags, unsigned int m68k_cycles);\r
758\r
759// 32x/draw.c\r
760void FinalizeLine32xRGB555(int sh, int line);\r
761void PicoDraw32xLayer(int offs, int lines, int mdbg);\r
762void PicoDraw32xLayerMdOnly(int offs, int lines);\r
763extern int (*PicoScan32xBegin)(unsigned int num);\r
764extern int (*PicoScan32xEnd)(unsigned int num);\r
765enum {\r
766 PDM32X_OFF,\r
767 PDM32X_32X_ONLY,\r
768 PDM32X_BOTH,\r
769};\r
770extern int Pico32xDrawMode;\r
771\r
772// 32x/pwm.c\r
773unsigned int p32x_pwm_read16(unsigned int a);\r
774void p32x_pwm_write16(unsigned int a, unsigned int d);\r
775void p32x_pwm_update(int *buf32, int length, int stereo);\r
776void p32x_timers_do(unsigned int cycles);\r
777void p32x_timers_recalc(void);\r
778void p32x_pwm_schedule(unsigned int now);\r
779void p32x_pwm_schedule_sh2(SH2 *sh2);\r
780#else\r
781#define Pico32xInit()\r
782#define PicoPower32x()\r
783#define PicoReset32x()\r
784#define PicoFrame32x()\r
785#define PicoUnload32x()\r
786#define Pico32xStateLoaded()\r
787#define PicoDraw32xSetFrameMode(...)\r
788#define FinalizeLine32xRGB555 NULL\r
789#define p32x_pwm_update(...)\r
790#define p32x_timers_recalc()\r
791#endif\r
792\r
793/* avoid dependency on newer glibc */\r
794static __inline int isspace_(int c)\r
795{\r
796 return (0x09 <= c && c <= 0x0d) || c == ' ';\r
797}\r
798\r
799#ifndef ARRAY_SIZE\r
800#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))\r
801#endif\r
802\r
803// emulation event logging\r
804#ifndef EL_LOGMASK\r
805#define EL_LOGMASK 0\r
806#endif\r
807\r
808#define EL_HVCNT 0x00000001 /* hv counter reads */\r
809#define EL_SR 0x00000002 /* SR reads */\r
810#define EL_INTS 0x00000004 /* ints and acks */\r
811#define EL_YMTIMER 0x00000008 /* ym2612 timer stuff */\r
812#define EL_INTSW 0x00000010 /* log irq switching on/off */\r
813#define EL_ASVDP 0x00000020 /* VDP accesses during active scan */\r
814#define EL_VDPDMA 0x00000040 /* VDP DMA transfers and their timing */\r
815#define EL_BUSREQ 0x00000080 /* z80 busreq r/w or reset w */\r
816#define EL_Z80BNK 0x00000100 /* z80 i/o through bank area */\r
817#define EL_SRAMIO 0x00000200 /* sram i/o */\r
818#define EL_EEPROM 0x00000400 /* eeprom debug */\r
819#define EL_UIO 0x00000800 /* unmapped i/o */\r
820#define EL_IO 0x00001000 /* all i/o */\r
821#define EL_CDPOLL 0x00002000 /* MCD: log poll detection */\r
822#define EL_SVP 0x00004000 /* SVP stuff */\r
823#define EL_PICOHW 0x00008000 /* Pico stuff */\r
824#define EL_IDLE 0x00010000 /* idle loop det. */\r
825#define EL_CDREGS 0x00020000 /* MCD: register access */\r
826#define EL_CDREG3 0x00040000 /* MCD: register 3 only */\r
827#define EL_32X 0x00080000\r
828#define EL_PWM 0x00100000 /* 32X PWM stuff (LOTS of output) */\r
829\r
830#define EL_STATUS 0x40000000 /* status messages */\r
831#define EL_ANOMALY 0x80000000 /* some unexpected conditions (during emulation) */\r
832\r
833#if EL_LOGMASK\r
834#define elprintf(w,f,...) \\r
835do { \\r
836 if ((w) & EL_LOGMASK) \\r
837 lprintf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__); \\r
838} while (0)\r
839#elif defined(_MSC_VER)\r
840#define elprintf\r
841#else\r
842#define elprintf(w,f,...)\r
843#endif\r
844\r
845// profiling\r
846#ifdef PPROF\r
847#include <platform/linux/pprof.h>\r
848#else\r
849#define pprof_init()\r
850#define pprof_finish()\r
851#define pprof_start(x)\r
852#define pprof_end(...)\r
853#define pprof_end_sub(...)\r
854#endif\r
855\r
856#ifdef EVT_LOG\r
857enum evt {\r
858 EVT_FRAME_START,\r
859 EVT_NEXT_LINE,\r
860 EVT_RUN_START,\r
861 EVT_RUN_END,\r
862 EVT_POLL_START,\r
863 EVT_POLL_END,\r
864 EVT_CNT\r
865};\r
866\r
867enum evt_cpu {\r
868 EVT_M68K,\r
869 EVT_S68K,\r
870 EVT_MSH2,\r
871 EVT_SSH2,\r
872 EVT_CPU_CNT\r
873};\r
874\r
875void pevt_log(unsigned int cycles, enum evt_cpu c, enum evt e);\r
876void pevt_dump(void);\r
877\r
878#define pevt_log_m68k(e) \\r
879 pevt_log(SekCyclesDoneT(), EVT_M68K, e)\r
880#define pevt_log_m68k_o(e) \\r
881 pevt_log(SekCyclesDoneT2(), EVT_M68K, e)\r
882#define pevt_log_sh2(sh2, e) \\r
883 pevt_log(sh2_cycles_done_m68k(sh2), EVT_MSH2 + (sh2)->is_slave, e)\r
884#define pevt_log_sh2_o(sh2, e) \\r
885 pevt_log((sh2)->m68krcycles_done, EVT_MSH2 + (sh2)->is_slave, e)\r
886#else\r
887#define pevt_log(c, e)\r
888#define pevt_log_m68k(e)\r
889#define pevt_log_m68k_o(e)\r
890#define pevt_log_sh2(sh2, e)\r
891#define pevt_log_sh2_o(sh2, e)\r
892#define pevt_dump()\r
893#endif\r
894\r
895// misc\r
896#ifdef _MSC_VER\r
897#define cdprintf\r
898#else\r
899#define cdprintf(x...)\r
900#endif\r
901\r
902#ifdef __i386__\r
903#define REGPARM(x) __attribute__((regparm(x)))\r
904#else\r
905#define REGPARM(x)\r
906#endif\r
907\r
908#ifdef __GNUC__\r
909#define NOINLINE __attribute__((noinline))\r
910#else\r
911#define NOINLINE\r
912#endif\r
913\r
914#ifdef __cplusplus\r
915} // End of extern "C"\r
916#endif\r
917\r
918#endif // PICO_INTERNAL_INCLUDED\r
919\r