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[picodrive.git] / pico / pico_int.h
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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 SekCyclesLeft PicoCpuCM68k.cycles // cycles left for this run\r
41#define SekCyclesLeftS68k PicoCpuCS68k.cycles\r
42#define SekPc (PicoCpuCM68k.pc-PicoCpuCM68k.membase)\r
43#define SekPcS68k (PicoCpuCS68k.pc-PicoCpuCS68k.membase)\r
44#define SekDar(x) (x < 8 ? PicoCpuCM68k.d[x] : PicoCpuCM68k.a[x - 8])\r
45#define SekDarS68k(x) (x < 8 ? PicoCpuCS68k.d[x] : PicoCpuCS68k.a[x - 8])\r
46#define SekSr CycloneGetSr(&PicoCpuCM68k)\r
47#define SekSrS68k CycloneGetSr(&PicoCpuCS68k)\r
48#define SekSetStop(x) { PicoCpuCM68k.state_flags&=~1; if (x) { PicoCpuCM68k.state_flags|=1; PicoCpuCM68k.cycles=0; } }\r
49#define SekSetStopS68k(x) { PicoCpuCS68k.state_flags&=~1; if (x) { PicoCpuCS68k.state_flags|=1; PicoCpuCS68k.cycles=0; } }\r
50#define SekIsStoppedM68k() (PicoCpuCM68k.state_flags&1)\r
51#define SekIsStoppedS68k() (PicoCpuCS68k.state_flags&1)\r
52#define SekShouldInterrupt() (PicoCpuCM68k.irq > (PicoCpuCM68k.srh&7))\r
53\r
54#define SekNotPolling PicoCpuCM68k.not_pol\r
55#define SekNotPollingS68k PicoCpuCS68k.not_pol\r
56\r
57#define SekInterrupt(i) PicoCpuCM68k.irq=i\r
58#define SekIrqLevel PicoCpuCM68k.irq\r
59\r
60#endif\r
61\r
62#ifdef EMU_F68K\r
63#include "../cpu/fame/fame.h"\r
64extern M68K_CONTEXT PicoCpuFM68k, PicoCpuFS68k;\r
65#define SekCyclesLeft PicoCpuFM68k.io_cycle_counter\r
66#define SekCyclesLeftS68k PicoCpuFS68k.io_cycle_counter\r
67#define SekPc fm68k_get_pc(&PicoCpuFM68k)\r
68#define SekPcS68k fm68k_get_pc(&PicoCpuFS68k)\r
69#define SekDar(x) (x < 8 ? PicoCpuFM68k.dreg[x].D : PicoCpuFM68k.areg[x - 8].D)\r
70#define SekDarS68k(x) (x < 8 ? PicoCpuFS68k.dreg[x].D : PicoCpuFS68k.areg[x - 8].D)\r
71#define SekSr PicoCpuFM68k.sr\r
72#define SekSrS68k PicoCpuFS68k.sr\r
73#define SekSetStop(x) { \\r
74 PicoCpuFM68k.execinfo &= ~FM68K_HALTED; \\r
75 if (x) { PicoCpuFM68k.execinfo |= FM68K_HALTED; PicoCpuFM68k.io_cycle_counter = 0; } \\r
76}\r
77#define SekSetStopS68k(x) { \\r
78 PicoCpuFS68k.execinfo &= ~FM68K_HALTED; \\r
79 if (x) { PicoCpuFS68k.execinfo |= FM68K_HALTED; PicoCpuFS68k.io_cycle_counter = 0; } \\r
80}\r
81#define SekIsStoppedM68k() (PicoCpuFM68k.execinfo&FM68K_HALTED)\r
82#define SekIsStoppedS68k() (PicoCpuFS68k.execinfo&FM68K_HALTED)\r
83#define SekShouldInterrupt() fm68k_would_interrupt()\r
84\r
85#define SekNotPolling PicoCpuFM68k.not_polling\r
86#define SekNotPollingS68k PicoCpuFS68k.not_polling\r
87\r
88#define SekInterrupt(irq) PicoCpuFM68k.interrupts[0]=irq\r
89#define SekIrqLevel PicoCpuFM68k.interrupts[0]\r
90\r
91#endif\r
92\r
93#ifdef EMU_M68K\r
94#include "../cpu/musashi/m68kcpu.h"\r
95extern m68ki_cpu_core PicoCpuMM68k, PicoCpuMS68k;\r
96#ifndef SekCyclesLeft\r
97#define SekCyclesLeft PicoCpuMM68k.cyc_remaining_cycles\r
98#define SekCyclesLeftS68k PicoCpuMS68k.cyc_remaining_cycles\r
99#define SekPc m68k_get_reg(&PicoCpuMM68k, M68K_REG_PC)\r
100#define SekPcS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_PC)\r
101#define SekDar(x) PicoCpuMM68k.dar[x]\r
102#define SekDarS68k(x) PicoCpuMS68k.dar[x]\r
103#define SekSr m68k_get_reg(&PicoCpuMM68k, M68K_REG_SR)\r
104#define SekSrS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_SR)\r
105#define SekSetStop(x) { \\r
106 if(x) { SET_CYCLES(0); PicoCpuMM68k.stopped=STOP_LEVEL_STOP; } \\r
107 else PicoCpuMM68k.stopped=0; \\r
108}\r
109#define SekSetStopS68k(x) { \\r
110 if(x) { SET_CYCLES(0); PicoCpuMS68k.stopped=STOP_LEVEL_STOP; } \\r
111 else PicoCpuMS68k.stopped=0; \\r
112}\r
113#define SekIsStoppedM68k() (PicoCpuMM68k.stopped==STOP_LEVEL_STOP)\r
114#define SekIsStoppedS68k() (PicoCpuMS68k.stopped==STOP_LEVEL_STOP)\r
115#define SekShouldInterrupt() (CPU_INT_LEVEL > FLAG_INT_MASK)\r
116\r
117#define SekNotPolling PicoCpuMM68k.not_polling\r
118#define SekNotPollingS68k PicoCpuMS68k.not_polling\r
119\r
120#define SekInterrupt(irq) { \\r
121 void *oldcontext = m68ki_cpu_p; \\r
122 m68k_set_context(&PicoCpuMM68k); \\r
123 m68k_set_irq(irq); \\r
124 m68k_set_context(oldcontext); \\r
125}\r
126#define SekIrqLevel (PicoCpuMM68k.int_level >> 8)\r
127\r
128#endif\r
129#endif // EMU_M68K\r
130\r
131// while running, cnt represents target of current timeslice\r
132// while not in SekRun(), it's actual cycles done\r
133// (but always use SekCyclesDone() if you need current position)\r
134// cnt may change if timeslice is ended prematurely or extended,\r
135// so we use SekCycleAim for the actual target\r
136extern unsigned int SekCycleCnt;\r
137extern unsigned int SekCycleAim;\r
138\r
139// number of cycles done (can be checked anywhere)\r
140#define SekCyclesDone() (SekCycleCnt - SekCyclesLeft)\r
141\r
142// burn cycles while not in SekRun() and while in\r
143#define SekCyclesBurn(c) SekCycleCnt += c\r
144#define SekCyclesBurnRun(c) { \\r
145 SekCyclesLeft -= c; \\r
146}\r
147\r
148// note: sometimes may extend timeslice to delay an irq\r
149#define SekEndRun(after) { \\r
150 SekCycleCnt -= SekCyclesLeft - (after); \\r
151 SekCyclesLeft = after; \\r
152}\r
153\r
154extern unsigned int SekCycleCntS68k;\r
155extern unsigned int SekCycleAimS68k;\r
156\r
157#define SekEndRunS68k(after) { \\r
158 if (SekCyclesLeftS68k > (after)) { \\r
159 SekCycleCntS68k -= SekCyclesLeftS68k - (after); \\r
160 SekCyclesLeftS68k = after; \\r
161 } \\r
162}\r
163\r
164#define SekCyclesDoneS68k() (SekCycleCntS68k - SekCyclesLeftS68k)\r
165\r
166// compare cycles, handling overflows\r
167// check if a > b\r
168#define CYCLES_GT(a, b) \\r
169 ((int)((a) - (b)) > 0)\r
170// check if a >= b\r
171#define CYCLES_GE(a, b) \\r
172 ((int)((a) - (b)) >= 0)\r
173\r
174// ----------------------- Z80 CPU -----------------------\r
175\r
176#if defined(_USE_DRZ80)\r
177#include "../cpu/DrZ80/drz80.h"\r
178\r
179extern struct DrZ80 drZ80;\r
180\r
181#define z80_run(cycles) ((cycles) - DrZ80Run(&drZ80, cycles))\r
182#define z80_run_nr(cycles) DrZ80Run(&drZ80, cycles)\r
183#define z80_int() drZ80.Z80_IRQ = 1\r
184#define z80_int() drZ80.Z80_IRQ = 1\r
185#define z80_nmi() drZ80.Z80IF |= 8\r
186\r
187#define z80_cyclesLeft drZ80.cycles\r
188#define z80_pc() (drZ80.Z80PC - drZ80.Z80PC_BASE)\r
189\r
190#elif defined(_USE_CZ80)\r
191#include "../cpu/cz80/cz80.h"\r
192\r
193#define z80_run(cycles) Cz80_Exec(&CZ80, cycles)\r
194#define z80_run_nr(cycles) Cz80_Exec(&CZ80, cycles)\r
195#define z80_int() Cz80_Set_IRQ(&CZ80, 0, HOLD_LINE)\r
196#define z80_nmi() Cz80_Set_IRQ(&CZ80, IRQ_LINE_NMI, 0)\r
197\r
198#define z80_cyclesLeft (CZ80.ICount - CZ80.ExtraCycles)\r
199#define z80_pc() Cz80_Get_Reg(&CZ80, CZ80_PC)\r
200\r
201#else\r
202\r
203#define z80_run(cycles) (cycles)\r
204#define z80_run_nr(cycles)\r
205#define z80_int()\r
206#define z80_nmi()\r
207\r
208#endif\r
209\r
210#define Z80_STATE_SIZE 0x60\r
211\r
212extern unsigned int last_z80_sync;\r
213extern int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */\r
214extern int z80_cycle_aim;\r
215extern int z80_scanline;\r
216extern int z80_scanline_cycles; /* cycles done until z80_scanline */\r
217\r
218#define z80_resetCycles() \\r
219 last_z80_sync = SekCyclesDone(); \\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 sh2_end_run(sh2, after_) do { \\r
237 if ((sh2)->icount > (after_)) { \\r
238 (sh2)->cycles_timeslice -= (sh2)->icount - (after_); \\r
239 (sh2)->icount = after_; \\r
240 } \\r
241} while (0)\r
242# define sh2_cycles_left(sh2) (sh2)->icount\r
243# define sh2_burn_cycles(sh2, n) (sh2)->icount -= n\r
244# define sh2_pc(sh2) (sh2)->ppc\r
245#else\r
246# define sh2_end_run(sh2, after_) do { \\r
247 int left_ = (signed int)(sh2)->sr >> 12; \\r
248 if (left_ > (after_)) { \\r
249 (sh2)->cycles_timeslice -= left_ - (after_); \\r
250 (sh2)->sr &= 0xfff; \\r
251 (sh2)->sr |= (after_) << 12; \\r
252 } \\r
253} while (0)\r
254# define sh2_cycles_left(sh2) ((signed int)(sh2)->sr >> 12)\r
255# define sh2_burn_cycles(sh2, n) (sh2)->sr -= ((n) << 12)\r
256# define sh2_pc(sh2) (sh2)->pc\r
257#endif\r
258\r
259#define sh2_cycles_done(sh2) ((int)(sh2)->cycles_timeslice - sh2_cycles_left(sh2))\r
260#define sh2_cycles_done_t(sh2) \\r
261 ((sh2)->m68krcycles_done * 3 + sh2_cycles_done(sh2))\r
262#define sh2_cycles_done_m68k(sh2) \\r
263 ((sh2)->m68krcycles_done + (sh2_cycles_done(sh2) / 3))\r
264\r
265#define sh2_reg(c, x) (c) ? ssh2.r[x] : msh2.r[x]\r
266#define sh2_gbr(c) (c) ? ssh2.gbr : msh2.gbr\r
267#define sh2_vbr(c) (c) ? ssh2.vbr : msh2.vbr\r
268#define sh2_sr(c) (((c) ? ssh2.sr : msh2.sr) & 0xfff)\r
269\r
270#define sh2_set_gbr(c, v) \\r
271 { if (c) ssh2.gbr = v; else msh2.gbr = v; }\r
272#define sh2_set_vbr(c, v) \\r
273 { if (c) ssh2.vbr = v; else msh2.vbr = v; }\r
274\r
275#define elprintf_sh2(sh2, w, f, ...) \\r
276 elprintf(w,"%csh2 "f,(sh2)->is_slave?'s':'m',##__VA_ARGS__)\r
277\r
278// ---------------------------------------------------------\r
279\r
280// main oscillator clock which controls timing\r
281#define OSC_NTSC 53693100\r
282#define OSC_PAL 53203424\r
283\r
284struct PicoVideo\r
285{\r
286 unsigned char reg[0x20];\r
287 unsigned int command; // 32-bit Command\r
288 unsigned char pending; // 1 if waiting for second half of 32-bit command\r
289 unsigned char type; // Command type (v/c/vsram read/write)\r
290 unsigned short addr; // Read/Write address\r
291 int status; // Status bits\r
292 unsigned char pending_ints; // pending interrupts: ??VH????\r
293 signed char lwrite_cnt; // VDP write count during active display line\r
294 unsigned short v_counter; // V-counter\r
295 unsigned char pad[0x10];\r
296};\r
297\r
298struct PicoMisc\r
299{\r
300 unsigned char rotate;\r
301 unsigned char z80Run;\r
302 unsigned char padTHPhase[2]; // 02 phase of gamepad TH switches\r
303 unsigned short scanline; // 04 0 to 261||311\r
304 char dirtyPal; // 06 Is the palette dirty (1 - change @ this frame, 2 - some time before)\r
305 unsigned char hardware; // 07 Hardware value for country\r
306 unsigned char pal; // 08 1=PAL 0=NTSC\r
307 unsigned char sram_reg; // 09 SRAM reg. See SRR_* below\r
308 unsigned short z80_bank68k; // 0a\r
309 unsigned short pad0;\r
310 unsigned char ncart_in; // 0e !cart_in\r
311 unsigned char z80_reset; // 0f z80 reset held\r
312 unsigned char padDelay[2]; // 10 gamepad phase time outs, so we count a delay\r
313 unsigned short eeprom_addr; // EEPROM address register\r
314 unsigned char eeprom_cycle; // EEPROM cycle number\r
315 unsigned char eeprom_slave; // EEPROM slave word for X24C02 and better SRAMs\r
316 unsigned char eeprom_status;\r
317 unsigned char pad2;\r
318 unsigned short dma_xfers; // 18\r
319 unsigned char eeprom_wb[2]; // EEPROM latch/write buffer\r
320 unsigned int frame_count; // 1c for movies and idle det\r
321};\r
322\r
323struct PicoMS\r
324{\r
325 unsigned char carthw[0x10];\r
326 unsigned char io_ctl;\r
327 unsigned char nmi_state;\r
328 unsigned char pad[0x4e];\r
329};\r
330\r
331// some assembly stuff depend on these, do not touch!\r
332struct Pico\r
333{\r
334 unsigned char ram[0x10000]; // 0x00000 scratch ram\r
335 union { // vram is byteswapped for easier reads when drawing\r
336 unsigned short vram[0x8000]; // 0x10000\r
337 unsigned char vramb[0x4000]; // VRAM in SMS mode\r
338 };\r
339 unsigned char zram[0x2000]; // 0x20000 Z80 ram\r
340 unsigned char ioports[0x10]; // XXX: fix asm and mv\r
341 unsigned char pad[0xf0]; // unused\r
342 unsigned short cram[0x40]; // 0x22100\r
343 unsigned short vsram[0x40]; // 0x22180\r
344\r
345 unsigned char *rom; // 0x22200\r
346 unsigned int romsize; // 0x22204 (on 32bits)\r
347\r
348 struct PicoMisc m;\r
349 struct PicoVideo video;\r
350 struct PicoMS ms;\r
351};\r
352\r
353// sram\r
354#define SRR_MAPPED (1 << 0)\r
355#define SRR_READONLY (1 << 1)\r
356\r
357#define SRF_ENABLED (1 << 0)\r
358#define SRF_EEPROM (1 << 1)\r
359\r
360struct PicoSRAM\r
361{\r
362 unsigned char *data; // actual data\r
363 unsigned int start; // start address in 68k address space\r
364 unsigned int end;\r
365 unsigned char flags; // 0c: SRF_*\r
366 unsigned char unused2;\r
367 unsigned char changed;\r
368 unsigned char eeprom_type; // eeprom type: 0: 7bit (24C01), 2: 2 addr words (X24C02+), 3: 3 addr words\r
369 unsigned char unused3;\r
370 unsigned char eeprom_bit_cl; // bit number for cl\r
371 unsigned char eeprom_bit_in; // bit number for in\r
372 unsigned char eeprom_bit_out; // bit number for out\r
373 unsigned int size;\r
374};\r
375\r
376// MCD\r
377#include "cd/cd_sys.h"\r
378#include "cd/LC89510.h"\r
379#include "cd/gfx_cd.h"\r
380\r
381struct mcd_pcm\r
382{\r
383 unsigned char control; // reg7\r
384 unsigned char enabled; // reg8\r
385 unsigned char cur_ch;\r
386 unsigned char bank;\r
387 int pad1;\r
388\r
389 struct pcm_chan // 08, size 0x10\r
390 {\r
391 unsigned char regs[8];\r
392 unsigned int addr; // .08: played sample address\r
393 int pad;\r
394 } ch[8];\r
395};\r
396\r
397#define PCD_ST_S68K_RST 1\r
398\r
399struct mcd_misc\r
400{\r
401 unsigned short hint_vector;\r
402 unsigned char busreq; // not s68k_regs[1]\r
403 unsigned char s68k_pend_ints;\r
404 unsigned int state_flags; // 04\r
405 unsigned int stopwatch_base_c;\r
406 unsigned short m68k_poll_a;\r
407 unsigned short m68k_poll_cnt;\r
408 unsigned short s68k_poll_a;\r
409 unsigned short s68k_poll_cnt;\r
410 unsigned int s68k_poll_clk;\r
411 unsigned char bcram_reg; // 18: battery-backed RAM cart register\r
412 unsigned char dmna_ret_2m;\r
413 unsigned short pad3;\r
414 int pad4[9];\r
415};\r
416\r
417typedef struct\r
418{\r
419 unsigned char bios[0x20000]; // 000000: 128K\r
420 union { // 020000: 512K\r
421 unsigned char prg_ram[0x80000];\r
422 unsigned char prg_ram_b[4][0x20000];\r
423 };\r
424 union { // 0a0000: 256K\r
425 struct {\r
426 unsigned char word_ram2M[0x40000];\r
427 unsigned char unused0[0x20000];\r
428 };\r
429 struct {\r
430 unsigned char unused1[0x20000];\r
431 unsigned char word_ram1M[2][0x20000];\r
432 };\r
433 };\r
434 union { // 100000: 64K\r
435 unsigned char pcm_ram[0x10000];\r
436 unsigned char pcm_ram_b[0x10][0x1000];\r
437 };\r
438 // FIXME: should be short\r
439 unsigned char s68k_regs[0x200]; // 110000: GA, not CPU regs\r
440 unsigned char bram[0x2000]; // 110200: 8K\r
441 struct mcd_misc m; // 112200: misc\r
442 struct mcd_pcm pcm; // 112240:\r
443 _scd_toc TOC; // not to be saved\r
444 CDD cdd;\r
445 CDC cdc;\r
446 _scd scd;\r
447 Rot_Comp rot_comp;\r
448} mcd_state;\r
449\r
450// XXX: this will need to be reworked for cart+cd support.\r
451#define Pico_mcd ((mcd_state *)Pico.rom)\r
452\r
453// 32X\r
454#define P32XS_FM (1<<15)\r
455#define P32XS_nCART (1<< 8)\r
456#define P32XS_REN (1<< 7)\r
457#define P32XS_nRES (1<< 1)\r
458#define P32XS_ADEN (1<< 0)\r
459#define P32XS2_ADEN (1<< 9)\r
460#define P32XS_FULL (1<< 7) // DREQ FIFO full\r
461#define P32XS_68S (1<< 2)\r
462#define P32XS_DMA (1<< 1)\r
463#define P32XS_RV (1<< 0)\r
464\r
465#define P32XV_nPAL (1<<15) // VDP\r
466#define P32XV_PRI (1<< 7)\r
467#define P32XV_Mx (3<< 0) // display mode mask\r
468\r
469#define P32XV_SFT (1<< 0)\r
470\r
471#define P32XV_VBLK (1<<15)\r
472#define P32XV_HBLK (1<<14)\r
473#define P32XV_PEN (1<<13)\r
474#define P32XV_nFEN (1<< 1)\r
475#define P32XV_FS (1<< 0)\r
476\r
477#define P32XP_RTP (1<<7) // PWM control\r
478#define P32XP_FULL (1<<15) // PWM pulse\r
479#define P32XP_EMPTY (1<<14)\r
480\r
481#define P32XF_68KCPOLL (1 << 0)\r
482#define P32XF_68KVPOLL (1 << 1)\r
483#define P32XF_Z80_32X_IO (1 << 7) // z80 does 32x io\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 union {\r
543 unsigned char b[0x800];\r
544 unsigned short w[0x800/2];\r
545 } sh2_rom_m;\r
546 union {\r
547 unsigned char b[0x400];\r
548 unsigned short w[0x400/2];\r
549 } sh2_rom_s;\r
550 unsigned short pal[0x100];\r
551 unsigned short pal_native[0x100]; // converted to native (for renderer)\r
552 signed short pwm[2*PWM_BUFF_LEN]; // PWM buffer for current frame\r
553 signed short pwm_current[2]; // current converted samples\r
554 unsigned short pwm_fifo[2][4]; // [0] - current raw, others - fifo entries\r
555};\r
556\r
557// area.c\r
558extern void (*PicoLoadStateHook)(void);\r
559\r
560typedef struct {\r
561 int chunk;\r
562 int size;\r
563 void *ptr;\r
564} carthw_state_chunk;\r
565extern carthw_state_chunk *carthw_chunks;\r
566#define CHUNK_CARTHW 64\r
567\r
568// cart.c\r
569extern int PicoCartResize(int newsize);\r
570extern void Byteswap(void *dst, const void *src, int len);\r
571extern void (*PicoCartMemSetup)(void);\r
572extern void (*PicoCartUnloadHook)(void);\r
573\r
574// debug.c\r
575int CM_compareRun(int cyc, int is_sub);\r
576\r
577// draw.c\r
578PICO_INTERNAL void PicoFrameStart(void);\r
579void PicoDrawSync(int to, int blank_last_line);\r
580void BackFill(int reg7, int sh);\r
581void FinalizeLine555(int sh, int line);\r
582extern int (*PicoScanBegin)(unsigned int num);\r
583extern int (*PicoScanEnd)(unsigned int num);\r
584extern int DrawScanline;\r
585#define MAX_LINE_SPRITES 29\r
586extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];\r
587extern void *DrawLineDestBase;\r
588extern int DrawLineDestIncrement;\r
589\r
590// draw2.c\r
591PICO_INTERNAL void PicoFrameFull();\r
592\r
593// mode4.c\r
594void PicoFrameStartMode4(void);\r
595void PicoLineMode4(int line);\r
596void PicoDoHighPal555M4(void);\r
597void PicoDrawSetOutputMode4(pdso_t which);\r
598\r
599// memory.c\r
600PICO_INTERNAL void PicoMemSetup(void);\r
601unsigned int PicoRead8_io(unsigned int a);\r
602unsigned int PicoRead16_io(unsigned int a);\r
603void PicoWrite8_io(unsigned int a, unsigned int d);\r
604void PicoWrite16_io(unsigned int a, unsigned int d);\r
605\r
606// pico/memory.c\r
607PICO_INTERNAL void PicoMemSetupPico(void);\r
608\r
609// cd/memory.c\r
610PICO_INTERNAL void PicoMemSetupCD(void);\r
611unsigned int PicoRead8_mcd_io(unsigned int a);\r
612unsigned int PicoRead16_mcd_io(unsigned int a);\r
613void PicoWrite8_mcd_io(unsigned int a, unsigned int d);\r
614void PicoWrite16_mcd_io(unsigned int a, unsigned int d);\r
615void pcd_state_loaded_mem(void);\r
616\r
617// pico.c\r
618extern struct Pico Pico;\r
619extern struct PicoSRAM SRam;\r
620extern int PicoPadInt[2];\r
621extern int emustatus;\r
622extern int scanlines_total;\r
623extern void (*PicoResetHook)(void);\r
624extern void (*PicoLineHook)(void);\r
625PICO_INTERNAL int CheckDMA(void);\r
626PICO_INTERNAL void PicoDetectRegion(void);\r
627PICO_INTERNAL void PicoSyncZ80(unsigned int m68k_cycles_done);\r
628\r
629// cd/mcd.c\r
630#define PCDS_IEN1 (1<<1)\r
631#define PCDS_IEN2 (1<<2)\r
632#define PCDS_IEN3 (1<<3)\r
633#define PCDS_IEN4 (1<<4)\r
634#define PCDS_IEN5 (1<<5)\r
635#define PCDS_IEN6 (1<<6)\r
636\r
637PICO_INTERNAL void PicoInitMCD(void);\r
638PICO_INTERNAL void PicoExitMCD(void);\r
639PICO_INTERNAL void PicoPowerMCD(void);\r
640PICO_INTERNAL int PicoResetMCD(void);\r
641PICO_INTERNAL void PicoFrameMCD(void);\r
642\r
643enum pcd_event {\r
644 PCD_EVENT_CDC,\r
645 PCD_EVENT_TIMER3,\r
646 PCD_EVENT_GFX,\r
647 PCD_EVENT_DMA,\r
648 PCD_EVENT_COUNT,\r
649};\r
650extern unsigned int pcd_event_times[PCD_EVENT_COUNT];\r
651void pcd_event_schedule(unsigned int now, enum pcd_event event, int after);\r
652void pcd_event_schedule_s68k(enum pcd_event event, int after);\r
653unsigned int pcd_cycles_m68k_to_s68k(unsigned int c);\r
654int pcd_sync_s68k(unsigned int m68k_target, int m68k_poll_sync);\r
655void pcd_run_cpus(int m68k_cycles);\r
656void pcd_state_loaded(void);\r
657\r
658// pico/pico.c\r
659PICO_INTERNAL void PicoInitPico(void);\r
660PICO_INTERNAL void PicoReratePico(void);\r
661\r
662// pico/xpcm.c\r
663PICO_INTERNAL void PicoPicoPCMUpdate(short *buffer, int length, int stereo);\r
664PICO_INTERNAL void PicoPicoPCMReset(void);\r
665PICO_INTERNAL void PicoPicoPCMRerate(int xpcm_rate);\r
666\r
667// sek.c\r
668PICO_INTERNAL void SekInit(void);\r
669PICO_INTERNAL int SekReset(void);\r
670PICO_INTERNAL void SekState(int *data);\r
671PICO_INTERNAL void SekSetRealTAS(int use_real);\r
672PICO_INTERNAL void SekPackCpu(unsigned char *cpu, int is_sub);\r
673PICO_INTERNAL void SekUnpackCpu(const unsigned char *cpu, int is_sub);\r
674void SekStepM68k(void);\r
675void SekInitIdleDet(void);\r
676void SekFinishIdleDet(void);\r
677#if defined(CPU_CMP_R) || defined(CPU_CMP_W)\r
678void SekTrace(int is_s68k);\r
679#else\r
680#define SekTrace(x)\r
681#endif\r
682\r
683// cd/sek.c\r
684PICO_INTERNAL void SekInitS68k(void);\r
685PICO_INTERNAL int SekResetS68k(void);\r
686PICO_INTERNAL int SekInterruptS68k(int irq);\r
687\r
688// sound/sound.c\r
689PICO_INTERNAL void cdda_start_play();\r
690extern short cdda_out_buffer[2*1152];\r
691extern int PsndLen_exc_cnt;\r
692extern int PsndLen_exc_add;\r
693extern int timer_a_next_oflow, timer_a_step; // in z80 cycles\r
694extern int timer_b_next_oflow, timer_b_step;\r
695\r
696void ym2612_sync_timers(int z80_cycles, int mode_old, int mode_new);\r
697void ym2612_pack_state(void);\r
698void ym2612_unpack_state(void);\r
699\r
700#define TIMER_NO_OFLOW 0x70000000\r
701// tA = 72 * (1024 - NA) / M\r
702#define TIMER_A_TICK_ZCYCLES 17203\r
703// tB = 1152 * (256 - NA) / M\r
704#define TIMER_B_TICK_ZCYCLES 262800 // 275251 broken, see Dai Makaimura\r
705\r
706#define timers_cycle() \\r
707 if (timer_a_next_oflow > 0 && timer_a_next_oflow < TIMER_NO_OFLOW) \\r
708 timer_a_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
709 if (timer_b_next_oflow > 0 && timer_b_next_oflow < TIMER_NO_OFLOW) \\r
710 timer_b_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
711 ym2612_sync_timers(0, ym2612.OPN.ST.mode, ym2612.OPN.ST.mode);\r
712\r
713#define timers_reset() \\r
714 timer_a_next_oflow = timer_b_next_oflow = TIMER_NO_OFLOW; \\r
715 timer_a_step = TIMER_A_TICK_ZCYCLES * 1024; \\r
716 timer_b_step = TIMER_B_TICK_ZCYCLES * 256;\r
717\r
718\r
719// videoport.c\r
720extern int line_base_cycles;\r
721PICO_INTERNAL_ASM void PicoVideoWrite(unsigned int a,unsigned short d);\r
722PICO_INTERNAL_ASM unsigned int PicoVideoRead(unsigned int a);\r
723PICO_INTERNAL_ASM unsigned int PicoVideoRead8(unsigned int a);\r
724extern int (*PicoDmaHook)(unsigned int source, int len, unsigned short **srcp, unsigned short **limitp);\r
725\r
726// misc.c\r
727PICO_INTERNAL_ASM void memcpy16(unsigned short *dest, unsigned short *src, int count);\r
728PICO_INTERNAL_ASM void memcpy16bswap(unsigned short *dest, void *src, int count);\r
729PICO_INTERNAL_ASM void memcpy32(int *dest, int *src, int count); // 32bit word count\r
730PICO_INTERNAL_ASM void memset32(int *dest, int c, int count);\r
731\r
732// eeprom.c\r
733void EEPROM_write8(unsigned int a, unsigned int d);\r
734void EEPROM_write16(unsigned int d);\r
735unsigned int EEPROM_read(void);\r
736\r
737// z80 functionality wrappers\r
738PICO_INTERNAL void z80_init(void);\r
739PICO_INTERNAL void z80_pack(void *data);\r
740PICO_INTERNAL int z80_unpack(const void *data);\r
741PICO_INTERNAL void z80_reset(void);\r
742PICO_INTERNAL void z80_exit(void);\r
743\r
744// cd/misc.c\r
745PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);\r
746PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);\r
747\r
748// cd/buffering.c\r
749PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);\r
750\r
751// sound/sound.c\r
752PICO_INTERNAL void PsndReset(void);\r
753PICO_INTERNAL void PsndDoDAC(int line_to);\r
754PICO_INTERNAL void PsndClear(void);\r
755PICO_INTERNAL void PsndGetSamples(int y);\r
756PICO_INTERNAL void PsndGetSamplesMS(void);\r
757extern int PsndDacLine;\r
758\r
759// sms.c\r
760#ifndef NO_SMS\r
761void PicoPowerMS(void);\r
762void PicoResetMS(void);\r
763void PicoMemSetupMS(void);\r
764void PicoStateLoadedMS(void);\r
765void PicoFrameMS(void);\r
766void PicoFrameDrawOnlyMS(void);\r
767#else\r
768#define PicoPowerMS()\r
769#define PicoResetMS()\r
770#define PicoMemSetupMS()\r
771#define PicoStateLoadedMS()\r
772#define PicoFrameMS()\r
773#define PicoFrameDrawOnlyMS()\r
774#endif\r
775\r
776// 32x/32x.c\r
777#ifndef NO_32X\r
778extern struct Pico32x Pico32x;\r
779enum p32x_event {\r
780 P32X_EVENT_PWM,\r
781 P32X_EVENT_FILLEND,\r
782 P32X_EVENT_HINT,\r
783 P32X_EVENT_COUNT,\r
784};\r
785extern unsigned int p32x_event_times[P32X_EVENT_COUNT];\r
786\r
787void Pico32xInit(void);\r
788void PicoPower32x(void);\r
789void PicoReset32x(void);\r
790void Pico32xStartup(void);\r
791void PicoUnload32x(void);\r
792void PicoFrame32x(void);\r
793void Pico32xStateLoaded(int is_early);\r
794void p32x_sync_sh2s(unsigned int m68k_target);\r
795void p32x_sync_other_sh2(SH2 *sh2, unsigned int m68k_target);\r
796void p32x_update_irls(SH2 *active_sh2, int m68k_cycles);\r
797void p32x_trigger_irq(SH2 *sh2, int m68k_cycles, unsigned int mask);\r
798void p32x_update_cmd_irq(SH2 *sh2, int m68k_cycles);\r
799void p32x_reset_sh2s(void);\r
800void p32x_event_schedule(unsigned int now, enum p32x_event event, int after);\r
801void p32x_event_schedule_sh2(SH2 *sh2, enum p32x_event event, int after);\r
802void p32x_schedule_hint(SH2 *sh2, int m68k_cycles);\r
803\r
804// 32x/memory.c\r
805struct Pico32xMem *Pico32xMem;\r
806unsigned int PicoRead8_32x(unsigned int a);\r
807unsigned int PicoRead16_32x(unsigned int a);\r
808void PicoWrite8_32x(unsigned int a, unsigned int d);\r
809void PicoWrite16_32x(unsigned int a, unsigned int d);\r
810void PicoMemSetup32x(void);\r
811void Pico32xSwapDRAM(int b);\r
812void Pico32xMemStateLoaded(void);\r
813void p32x_m68k_poll_event(unsigned int flags);\r
814void p32x_sh2_poll_event(SH2 *sh2, unsigned int flags, unsigned int m68k_cycles);\r
815\r
816// 32x/draw.c\r
817void PicoDrawSetOutFormat32x(pdso_t which, int use_32x_line_mode);\r
818void FinalizeLine32xRGB555(int sh, int line);\r
819void PicoDraw32xLayer(int offs, int lines, int mdbg);\r
820void PicoDraw32xLayerMdOnly(int offs, int lines);\r
821extern int (*PicoScan32xBegin)(unsigned int num);\r
822extern int (*PicoScan32xEnd)(unsigned int num);\r
823enum {\r
824 PDM32X_OFF,\r
825 PDM32X_32X_ONLY,\r
826 PDM32X_BOTH,\r
827};\r
828extern int Pico32xDrawMode;\r
829\r
830// 32x/pwm.c\r
831unsigned int p32x_pwm_read16(unsigned int a, SH2 *sh2,\r
832 unsigned int m68k_cycles);\r
833void p32x_pwm_write16(unsigned int a, unsigned int d,\r
834 SH2 *sh2, unsigned int m68k_cycles);\r
835void p32x_pwm_update(int *buf32, int length, int stereo);\r
836void p32x_pwm_ctl_changed(void);\r
837void p32x_pwm_schedule(unsigned int m68k_now);\r
838void p32x_pwm_schedule_sh2(SH2 *sh2);\r
839void p32x_pwm_sync_to_sh2(SH2 *sh2);\r
840void p32x_pwm_irq_event(unsigned int m68k_now);\r
841void p32x_pwm_state_loaded(void);\r
842\r
843// 32x/sh2soc.c\r
844void p32x_dreq0_trigger(void);\r
845void p32x_dreq1_trigger(void);\r
846void p32x_timers_recalc(void);\r
847void p32x_timers_do(unsigned int m68k_slice);\r
848void sh2_peripheral_reset(SH2 *sh2);\r
849unsigned int sh2_peripheral_read8(unsigned int a, SH2 *sh2);\r
850unsigned int sh2_peripheral_read16(unsigned int a, SH2 *sh2);\r
851unsigned int sh2_peripheral_read32(unsigned int a, SH2 *sh2);\r
852void REGPARM(3) sh2_peripheral_write8(unsigned int a, unsigned int d, SH2 *sh2);\r
853void REGPARM(3) sh2_peripheral_write16(unsigned int a, unsigned int d, SH2 *sh2);\r
854void REGPARM(3) sh2_peripheral_write32(unsigned int a, unsigned int d, SH2 *sh2);\r
855\r
856#else\r
857#define Pico32xInit()\r
858#define PicoPower32x()\r
859#define PicoReset32x()\r
860#define PicoFrame32x()\r
861#define PicoUnload32x()\r
862#define Pico32xStateLoaded()\r
863#define FinalizeLine32xRGB555 NULL\r
864#define p32x_pwm_update(...)\r
865#define p32x_timers_recalc()\r
866#endif\r
867\r
868/* avoid dependency on newer glibc */\r
869static __inline int isspace_(int c)\r
870{\r
871 return (0x09 <= c && c <= 0x0d) || c == ' ';\r
872}\r
873\r
874#ifndef ARRAY_SIZE\r
875#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))\r
876#endif\r
877\r
878// emulation event logging\r
879#ifndef EL_LOGMASK\r
880# ifdef __x86_64__ // HACK\r
881# define EL_LOGMASK (EL_STATUS|EL_IDLE|EL_ANOMALY)\r
882# else\r
883# define EL_LOGMASK (EL_STATUS)\r
884# endif\r
885#endif\r
886\r
887#define EL_HVCNT 0x00000001 /* hv counter reads */\r
888#define EL_SR 0x00000002 /* SR reads */\r
889#define EL_INTS 0x00000004 /* ints and acks */\r
890#define EL_YMTIMER 0x00000008 /* ym2612 timer stuff */\r
891#define EL_INTSW 0x00000010 /* log irq switching on/off */\r
892#define EL_ASVDP 0x00000020 /* VDP accesses during active scan */\r
893#define EL_VDPDMA 0x00000040 /* VDP DMA transfers and their timing */\r
894#define EL_BUSREQ 0x00000080 /* z80 busreq r/w or reset w */\r
895#define EL_Z80BNK 0x00000100 /* z80 i/o through bank area */\r
896#define EL_SRAMIO 0x00000200 /* sram i/o */\r
897#define EL_EEPROM 0x00000400 /* eeprom debug */\r
898#define EL_UIO 0x00000800 /* unmapped i/o */\r
899#define EL_IO 0x00001000 /* all i/o */\r
900#define EL_CDPOLL 0x00002000 /* MCD: log poll detection */\r
901#define EL_SVP 0x00004000 /* SVP stuff */\r
902#define EL_PICOHW 0x00008000 /* Pico stuff */\r
903#define EL_IDLE 0x00010000 /* idle loop det. */\r
904#define EL_CDREGS 0x00020000 /* MCD: register access */\r
905#define EL_CDREG3 0x00040000 /* MCD: register 3 only */\r
906#define EL_32X 0x00080000\r
907#define EL_PWM 0x00100000 /* 32X PWM stuff (LOTS of output) */\r
908#define EL_32XP 0x00200000 /* 32X peripherals */\r
909#define EL_CD 0x00400000 /* MCD */\r
910\r
911#define EL_STATUS 0x40000000 /* status messages */\r
912#define EL_ANOMALY 0x80000000 /* some unexpected conditions (during emulation) */\r
913\r
914#if EL_LOGMASK\r
915#define elprintf(w,f,...) \\r
916do { \\r
917 if ((w) & EL_LOGMASK) \\r
918 lprintf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__); \\r
919} while (0)\r
920#elif defined(_MSC_VER)\r
921#define elprintf\r
922#else\r
923#define elprintf(w,f,...)\r
924#endif\r
925\r
926// profiling\r
927#ifdef PPROF\r
928#include <platform/linux/pprof.h>\r
929#else\r
930#define pprof_init()\r
931#define pprof_finish()\r
932#define pprof_start(x)\r
933#define pprof_end(...)\r
934#define pprof_end_sub(...)\r
935#endif\r
936\r
937#ifdef EVT_LOG\r
938enum evt {\r
939 EVT_FRAME_START,\r
940 EVT_NEXT_LINE,\r
941 EVT_RUN_START,\r
942 EVT_RUN_END,\r
943 EVT_POLL_START,\r
944 EVT_POLL_END,\r
945 EVT_CNT\r
946};\r
947\r
948enum evt_cpu {\r
949 EVT_M68K,\r
950 EVT_S68K,\r
951 EVT_MSH2,\r
952 EVT_SSH2,\r
953 EVT_CPU_CNT\r
954};\r
955\r
956void pevt_log(unsigned int cycles, enum evt_cpu c, enum evt e);\r
957void pevt_dump(void);\r
958\r
959#define pevt_log_m68k(e) \\r
960 pevt_log(SekCyclesDone(), EVT_M68K, e)\r
961#define pevt_log_m68k_o(e) \\r
962 pevt_log(SekCyclesDone(), EVT_M68K, e)\r
963#define pevt_log_sh2(sh2, e) \\r
964 pevt_log(sh2_cycles_done_m68k(sh2), EVT_MSH2 + (sh2)->is_slave, e)\r
965#define pevt_log_sh2_o(sh2, e) \\r
966 pevt_log((sh2)->m68krcycles_done, EVT_MSH2 + (sh2)->is_slave, e)\r
967#else\r
968#define pevt_log(c, e)\r
969#define pevt_log_m68k(e)\r
970#define pevt_log_m68k_o(e)\r
971#define pevt_log_sh2(sh2, e)\r
972#define pevt_log_sh2_o(sh2, e)\r
973#define pevt_dump()\r
974#endif\r
975\r
976// misc\r
977#ifdef _MSC_VER\r
978#define cdprintf\r
979#else\r
980#define cdprintf(x...)\r
981#endif\r
982\r
983#if defined(__GNUC__) && defined(__i386__)\r
984#define REGPARM(x) __attribute__((regparm(x)))\r
985#else\r
986#define REGPARM(x)\r
987#endif\r
988\r
989#ifdef __GNUC__\r
990#define NOINLINE __attribute__((noinline))\r
991#else\r
992#define NOINLINE\r
993#endif\r
994\r
995#ifdef __cplusplus\r
996} // End of extern "C"\r
997#endif\r
998\r
999#endif // PICO_INTERNAL_INCLUDED\r
1000\r