cd: tweak the poll code further
[picodrive.git] / pico / pico_int.h
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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 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 SekInterrupt(i) PicoCpuCM68k.irq=i\r
55#define SekIrqLevel PicoCpuCM68k.irq\r
56\r
57#endif\r
58\r
59#ifdef EMU_F68K\r
60#include "../cpu/fame/fame.h"\r
61extern M68K_CONTEXT PicoCpuFM68k, PicoCpuFS68k;\r
62#define SekCyclesLeft PicoCpuFM68k.io_cycle_counter\r
63#define SekCyclesLeftS68k PicoCpuFS68k.io_cycle_counter\r
64#define SekPc fm68k_get_pc(&PicoCpuFM68k)\r
65#define SekPcS68k fm68k_get_pc(&PicoCpuFS68k)\r
66#define SekDar(x) (x < 8 ? PicoCpuFM68k.dreg[x].D : PicoCpuFM68k.areg[x - 8].D)\r
67#define SekDarS68k(x) (x < 8 ? PicoCpuFS68k.dreg[x].D : PicoCpuFS68k.areg[x - 8].D)\r
68#define SekSr PicoCpuFM68k.sr\r
69#define SekSrS68k PicoCpuFS68k.sr\r
70#define SekSetStop(x) { \\r
71 PicoCpuFM68k.execinfo &= ~FM68K_HALTED; \\r
72 if (x) { PicoCpuFM68k.execinfo |= FM68K_HALTED; PicoCpuFM68k.io_cycle_counter = 0; } \\r
73}\r
74#define SekSetStopS68k(x) { \\r
75 PicoCpuFS68k.execinfo &= ~FM68K_HALTED; \\r
76 if (x) { PicoCpuFS68k.execinfo |= FM68K_HALTED; PicoCpuFS68k.io_cycle_counter = 0; } \\r
77}\r
78#define SekIsStoppedM68k() (PicoCpuFM68k.execinfo&FM68K_HALTED)\r
79#define SekIsStoppedS68k() (PicoCpuFS68k.execinfo&FM68K_HALTED)\r
80#define SekShouldInterrupt() fm68k_would_interrupt()\r
81\r
82#define SekInterrupt(irq) PicoCpuFM68k.interrupts[0]=irq\r
83#define SekIrqLevel PicoCpuFM68k.interrupts[0]\r
84\r
85#endif\r
86\r
87#ifdef EMU_M68K\r
88#include "../cpu/musashi/m68kcpu.h"\r
89extern m68ki_cpu_core PicoCpuMM68k, PicoCpuMS68k;\r
90#ifndef SekCyclesLeft\r
91#define SekCyclesLeft PicoCpuMM68k.cyc_remaining_cycles\r
92#define SekCyclesLeftS68k PicoCpuMS68k.cyc_remaining_cycles\r
93#define SekPc m68k_get_reg(&PicoCpuMM68k, M68K_REG_PC)\r
94#define SekPcS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_PC)\r
95#define SekDar(x) PicoCpuMM68k.dar[x]\r
96#define SekDarS68k(x) PicoCpuMS68k.dar[x]\r
97#define SekSr m68k_get_reg(&PicoCpuMM68k, M68K_REG_SR)\r
98#define SekSrS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_SR)\r
99#define SekSetStop(x) { \\r
100 if(x) { SET_CYCLES(0); PicoCpuMM68k.stopped=STOP_LEVEL_STOP; } \\r
101 else PicoCpuMM68k.stopped=0; \\r
102}\r
103#define SekSetStopS68k(x) { \\r
104 if(x) { SET_CYCLES(0); PicoCpuMS68k.stopped=STOP_LEVEL_STOP; } \\r
105 else PicoCpuMS68k.stopped=0; \\r
106}\r
107#define SekIsStoppedM68k() (PicoCpuMM68k.stopped==STOP_LEVEL_STOP)\r
108#define SekIsStoppedS68k() (PicoCpuMS68k.stopped==STOP_LEVEL_STOP)\r
109#define SekShouldInterrupt() (CPU_INT_LEVEL > FLAG_INT_MASK)\r
110\r
111#define SekInterrupt(irq) { \\r
112 void *oldcontext = m68ki_cpu_p; \\r
113 m68k_set_context(&PicoCpuMM68k); \\r
114 m68k_set_irq(irq); \\r
115 m68k_set_context(oldcontext); \\r
116}\r
117#define SekIrqLevel (PicoCpuMM68k.int_level >> 8)\r
118\r
119#endif\r
120#endif // EMU_M68K\r
121\r
122// while running, cnt represents target of current timeslice\r
123// while not in SekRun(), it's actual cycles done\r
124// (but always use SekCyclesDone() if you need current position)\r
125// cnt may change if timeslice is ended prematurely or extended,\r
126// so we use SekCycleAim for the actual target\r
127extern unsigned int SekCycleCnt;\r
128extern unsigned int SekCycleAim;\r
129\r
130// number of cycles done (can be checked anywhere)\r
131#define SekCyclesDone() (SekCycleCnt - SekCyclesLeft)\r
132\r
133// burn cycles while not in SekRun() and while in\r
134#define SekCyclesBurn(c) SekCycleCnt += c\r
135#define SekCyclesBurnRun(c) { \\r
136 SekCyclesLeft -= c; \\r
137}\r
138\r
139// note: sometimes may extend timeslice to delay an irq\r
140#define SekEndRun(after) { \\r
141 SekCycleCnt -= SekCyclesLeft - (after); \\r
142 SekCyclesLeft = after; \\r
143}\r
144\r
145extern unsigned int SekCycleCntS68k;\r
146extern unsigned int SekCycleAimS68k;\r
147\r
148#define SekEndRunS68k(after) { \\r
149 if (SekCyclesLeftS68k > (after)) { \\r
150 SekCycleCntS68k -= SekCyclesLeftS68k - (after); \\r
151 SekCyclesLeftS68k = after; \\r
152 } \\r
153}\r
154\r
155#define SekCyclesDoneS68k() (SekCycleCntS68k - SekCyclesLeftS68k)\r
156\r
157// compare cycles, handling overflows\r
158// check if a > b\r
159#define CYCLES_GT(a, b) \\r
160 ((int)((a) - (b)) > 0)\r
161// check if a >= b\r
162#define CYCLES_GE(a, b) \\r
163 ((int)((a) - (b)) >= 0)\r
164\r
165// ----------------------- Z80 CPU -----------------------\r
166\r
167#if defined(_USE_DRZ80)\r
168#include "../cpu/DrZ80/drz80.h"\r
169\r
170extern struct DrZ80 drZ80;\r
171\r
172#define z80_run(cycles) ((cycles) - DrZ80Run(&drZ80, cycles))\r
173#define z80_run_nr(cycles) DrZ80Run(&drZ80, cycles)\r
174#define z80_int() drZ80.Z80_IRQ = 1\r
175#define z80_int() drZ80.Z80_IRQ = 1\r
176#define z80_nmi() drZ80.Z80IF |= 8\r
177\r
178#define z80_cyclesLeft drZ80.cycles\r
179#define z80_pc() (drZ80.Z80PC - drZ80.Z80PC_BASE)\r
180\r
181#elif defined(_USE_CZ80)\r
182#include "../cpu/cz80/cz80.h"\r
183\r
184#define z80_run(cycles) Cz80_Exec(&CZ80, cycles)\r
185#define z80_run_nr(cycles) Cz80_Exec(&CZ80, cycles)\r
186#define z80_int() Cz80_Set_IRQ(&CZ80, 0, HOLD_LINE)\r
187#define z80_nmi() Cz80_Set_IRQ(&CZ80, IRQ_LINE_NMI, 0)\r
188\r
189#define z80_cyclesLeft (CZ80.ICount - CZ80.ExtraCycles)\r
190#define z80_pc() Cz80_Get_Reg(&CZ80, CZ80_PC)\r
191\r
192#else\r
193\r
194#define z80_run(cycles) (cycles)\r
195#define z80_run_nr(cycles)\r
196#define z80_int()\r
197#define z80_nmi()\r
198\r
199#endif\r
200\r
201#define Z80_STATE_SIZE 0x60\r
202\r
203extern unsigned int last_z80_sync;\r
204extern int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */\r
205extern int z80_cycle_aim;\r
206extern int z80_scanline;\r
207extern int z80_scanline_cycles; /* cycles done until z80_scanline */\r
208\r
209#define z80_resetCycles() \\r
210 last_z80_sync = SekCyclesDone(); \\r
211 z80_cycle_cnt = z80_cycle_aim = z80_scanline = z80_scanline_cycles = 0;\r
212\r
213#define z80_cyclesDone() \\r
214 (z80_cycle_aim - z80_cyclesLeft)\r
215\r
216#define cycles_68k_to_z80(x) ((x)*957 >> 11)\r
217\r
218// ----------------------- SH2 CPU -----------------------\r
219\r
220#include "cpu/sh2/sh2.h"\r
221\r
222extern SH2 sh2s[2];\r
223#define msh2 sh2s[0]\r
224#define ssh2 sh2s[1]\r
225\r
226#ifndef DRC_SH2\r
227# define sh2_end_run(sh2, after_) do { \\r
228 if ((sh2)->icount > (after_)) { \\r
229 (sh2)->cycles_timeslice -= (sh2)->icount - (after_); \\r
230 (sh2)->icount = after_; \\r
231 } \\r
232} while (0)\r
233# define sh2_cycles_left(sh2) (sh2)->icount\r
234# define sh2_burn_cycles(sh2, n) (sh2)->icount -= n\r
235# define sh2_pc(sh2) (sh2)->ppc\r
236#else\r
237# define sh2_end_run(sh2, after_) do { \\r
238 int left_ = (signed int)(sh2)->sr >> 12; \\r
239 if (left_ > (after_)) { \\r
240 (sh2)->cycles_timeslice -= left_ - (after_); \\r
241 (sh2)->sr &= 0xfff; \\r
242 (sh2)->sr |= (after_) << 12; \\r
243 } \\r
244} while (0)\r
245# define sh2_cycles_left(sh2) ((signed int)(sh2)->sr >> 12)\r
246# define sh2_burn_cycles(sh2, n) (sh2)->sr -= ((n) << 12)\r
247# define sh2_pc(sh2) (sh2)->pc\r
248#endif\r
249\r
250#define sh2_cycles_done(sh2) ((int)(sh2)->cycles_timeslice - sh2_cycles_left(sh2))\r
251#define sh2_cycles_done_t(sh2) \\r
252 ((sh2)->m68krcycles_done * 3 + sh2_cycles_done(sh2))\r
253#define sh2_cycles_done_m68k(sh2) \\r
254 ((sh2)->m68krcycles_done + (sh2_cycles_done(sh2) / 3))\r
255\r
256#define sh2_reg(c, x) (c) ? ssh2.r[x] : msh2.r[x]\r
257#define sh2_gbr(c) (c) ? ssh2.gbr : msh2.gbr\r
258#define sh2_vbr(c) (c) ? ssh2.vbr : msh2.vbr\r
259#define sh2_sr(c) (((c) ? ssh2.sr : msh2.sr) & 0xfff)\r
260\r
261#define sh2_set_gbr(c, v) \\r
262 { if (c) ssh2.gbr = v; else msh2.gbr = v; }\r
263#define sh2_set_vbr(c, v) \\r
264 { if (c) ssh2.vbr = v; else msh2.vbr = v; }\r
265\r
266#define elprintf_sh2(sh2, w, f, ...) \\r
267 elprintf(w,"%csh2 "f,(sh2)->is_slave?'s':'m',##__VA_ARGS__)\r
268\r
269// ---------------------------------------------------------\r
270\r
271// main oscillator clock which controls timing\r
272#define OSC_NTSC 53693100\r
273#define OSC_PAL 53203424\r
274\r
275struct PicoVideo\r
276{\r
277 unsigned char reg[0x20];\r
278 unsigned int command; // 32-bit Command\r
279 unsigned char pending; // 1 if waiting for second half of 32-bit command\r
280 unsigned char type; // Command type (v/c/vsram read/write)\r
281 unsigned short addr; // Read/Write address\r
282 int status; // Status bits\r
283 unsigned char pending_ints; // pending interrupts: ??VH????\r
284 signed char lwrite_cnt; // VDP write count during active display line\r
285 unsigned short v_counter; // V-counter\r
286 unsigned char pad[0x10];\r
287};\r
288\r
289struct PicoMisc\r
290{\r
291 unsigned char rotate;\r
292 unsigned char z80Run;\r
293 unsigned char padTHPhase[2]; // 02 phase of gamepad TH switches\r
294 unsigned short scanline; // 04 0 to 261||311\r
295 char dirtyPal; // 06 Is the palette dirty (1 - change @ this frame, 2 - some time before)\r
296 unsigned char hardware; // 07 Hardware value for country\r
297 unsigned char pal; // 08 1=PAL 0=NTSC\r
298 unsigned char sram_reg; // 09 SRAM reg. See SRR_* below\r
299 unsigned short z80_bank68k; // 0a\r
300 unsigned short pad0;\r
301 unsigned char pad1;\r
302 unsigned char z80_reset; // 0f z80 reset held\r
303 unsigned char padDelay[2]; // 10 gamepad phase time outs, so we count a delay\r
304 unsigned short eeprom_addr; // EEPROM address register\r
305 unsigned char eeprom_cycle; // EEPROM cycle number\r
306 unsigned char eeprom_slave; // EEPROM slave word for X24C02 and better SRAMs\r
307 unsigned char eeprom_status;\r
308 unsigned char pad2;\r
309 unsigned short dma_xfers; // 18\r
310 unsigned char eeprom_wb[2]; // EEPROM latch/write buffer\r
311 unsigned int frame_count; // 1c for movies and idle det\r
312};\r
313\r
314struct PicoMS\r
315{\r
316 unsigned char carthw[0x10];\r
317 unsigned char io_ctl;\r
318 unsigned char nmi_state;\r
319 unsigned char pad[0x4e];\r
320};\r
321\r
322// some assembly stuff depend on these, do not touch!\r
323struct Pico\r
324{\r
325 unsigned char ram[0x10000]; // 0x00000 scratch ram\r
326 union { // vram is byteswapped for easier reads when drawing\r
327 unsigned short vram[0x8000]; // 0x10000\r
328 unsigned char vramb[0x4000]; // VRAM in SMS mode\r
329 };\r
330 unsigned char zram[0x2000]; // 0x20000 Z80 ram\r
331 unsigned char ioports[0x10]; // XXX: fix asm and mv\r
332 unsigned char pad[0xf0]; // unused\r
333 unsigned short cram[0x40]; // 0x22100\r
334 unsigned short vsram[0x40]; // 0x22180\r
335\r
336 unsigned char *rom; // 0x22200\r
337 unsigned int romsize; // 0x22204 (on 32bits)\r
338\r
339 struct PicoMisc m;\r
340 struct PicoVideo video;\r
341 struct PicoMS ms;\r
342};\r
343\r
344// sram\r
345#define SRR_MAPPED (1 << 0)\r
346#define SRR_READONLY (1 << 1)\r
347\r
348#define SRF_ENABLED (1 << 0)\r
349#define SRF_EEPROM (1 << 1)\r
350\r
351struct PicoSRAM\r
352{\r
353 unsigned char *data; // actual data\r
354 unsigned int start; // start address in 68k address space\r
355 unsigned int end;\r
356 unsigned char flags; // 0c: SRF_*\r
357 unsigned char unused2;\r
358 unsigned char changed;\r
359 unsigned char eeprom_type; // eeprom type: 0: 7bit (24C01), 2: 2 addr words (X24C02+), 3: 3 addr words\r
360 unsigned char unused3;\r
361 unsigned char eeprom_bit_cl; // bit number for cl\r
362 unsigned char eeprom_bit_in; // bit number for in\r
363 unsigned char eeprom_bit_out; // bit number for out\r
364 unsigned int size;\r
365};\r
366\r
367// MCD\r
368#include "cd/cd_sys.h"\r
369#include "cd/LC89510.h"\r
370#include "cd/gfx_cd.h"\r
371\r
372struct mcd_pcm\r
373{\r
374 unsigned char control; // reg7\r
375 unsigned char enabled; // reg8\r
376 unsigned char cur_ch;\r
377 unsigned char bank;\r
378 int pad1;\r
379\r
380 struct pcm_chan // 08, size 0x10\r
381 {\r
382 unsigned char regs[8];\r
383 unsigned int addr; // .08: played sample address\r
384 int pad;\r
385 } ch[8];\r
386};\r
387\r
388#define PCD_ST_S68K_RST 1\r
389\r
390struct mcd_misc\r
391{\r
392 unsigned short hint_vector;\r
393 unsigned char busreq; // not s68k_regs[1]\r
394 unsigned char s68k_pend_ints;\r
395 unsigned int state_flags; // 04\r
396 unsigned int stopwatch_base_c;\r
397 unsigned short m68k_poll_a;\r
398 unsigned short m68k_poll_cnt;\r
399 unsigned short s68k_poll_a;\r
400 unsigned short s68k_poll_cnt;\r
401 unsigned int s68k_poll_clk;\r
402 unsigned char bcram_reg; // 18: battery-backed RAM cart register\r
403 unsigned char dmna_ret_2m;\r
404 unsigned short pad3;\r
405 int pad4[9];\r
406};\r
407\r
408typedef struct\r
409{\r
410 unsigned char bios[0x20000]; // 000000: 128K\r
411 union { // 020000: 512K\r
412 unsigned char prg_ram[0x80000];\r
413 unsigned char prg_ram_b[4][0x20000];\r
414 };\r
415 union { // 0a0000: 256K\r
416 struct {\r
417 unsigned char word_ram2M[0x40000];\r
418 unsigned char unused0[0x20000];\r
419 };\r
420 struct {\r
421 unsigned char unused1[0x20000];\r
422 unsigned char word_ram1M[2][0x20000];\r
423 };\r
424 };\r
425 union { // 100000: 64K\r
426 unsigned char pcm_ram[0x10000];\r
427 unsigned char pcm_ram_b[0x10][0x1000];\r
428 };\r
429 // FIXME: should be short\r
430 unsigned char s68k_regs[0x200]; // 110000: GA, not CPU regs\r
431 unsigned char bram[0x2000]; // 110200: 8K\r
432 struct mcd_misc m; // 112200: misc\r
433 struct mcd_pcm pcm; // 112240:\r
434 _scd_toc TOC; // not to be saved\r
435 CDD cdd;\r
436 CDC cdc;\r
437 _scd scd;\r
438 Rot_Comp rot_comp;\r
439} mcd_state;\r
440\r
441// XXX: this will need to be reworked for cart+cd support.\r
442#define Pico_mcd ((mcd_state *)Pico.rom)\r
443\r
444// 32X\r
445#define P32XS_FM (1<<15)\r
446#define P32XS_REN (1<< 7)\r
447#define P32XS_nRES (1<< 1)\r
448#define P32XS_ADEN (1<< 0)\r
449#define P32XS2_ADEN (1<< 9)\r
450#define P32XS_FULL (1<< 7) // DREQ FIFO full\r
451#define P32XS_68S (1<< 2)\r
452#define P32XS_DMA (1<< 1)\r
453#define P32XS_RV (1<< 0)\r
454\r
455#define P32XV_nPAL (1<<15) // VDP\r
456#define P32XV_PRI (1<< 7)\r
457#define P32XV_Mx (3<< 0) // display mode mask\r
458\r
459#define P32XV_SFT (1<< 0)\r
460\r
461#define P32XV_VBLK (1<<15)\r
462#define P32XV_HBLK (1<<14)\r
463#define P32XV_PEN (1<<13)\r
464#define P32XV_nFEN (1<< 1)\r
465#define P32XV_FS (1<< 0)\r
466\r
467#define P32XP_RTP (1<<7) // PWM control\r
468#define P32XP_FULL (1<<15) // PWM pulse\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_Z80_32X_IO (1 << 7) // z80 does 32x io\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#define DMAC_FIFO_LEN (4*2)\r
485#define PWM_BUFF_LEN 1024 // in one channel samples\r
486\r
487#define SH2_DRCBLK_RAM_SHIFT 1\r
488#define SH2_DRCBLK_DA_SHIFT 1\r
489\r
490#define SH2_READ_SHIFT 25\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 pad[4];\r
506 unsigned int dmac0_fifo_ptr;\r
507 unsigned short vdp_fbcr_fake;\r
508 unsigned short pad2;\r
509 unsigned char comm_dirty_68k;\r
510 unsigned char comm_dirty_sh2;\r
511 unsigned char pwm_irq_cnt;\r
512 unsigned char pad1;\r
513 unsigned short pwm_p[2]; // pwm pos in fifo\r
514 unsigned int pwm_cycle_p; // pwm play cursor (32x cycles)\r
515 unsigned int reserved[6];\r
516};\r
517\r
518struct Pico32xMem\r
519{\r
520 unsigned char sdram[0x40000];\r
521#ifdef DRC_SH2\r
522 unsigned short drcblk_ram[1 << (18 - SH2_DRCBLK_RAM_SHIFT)];\r
523#endif\r
524 unsigned short dram[2][0x20000/2]; // AKA fb\r
525 union {\r
526 unsigned char m68k_rom[0x100];\r
527 unsigned char m68k_rom_bank[0x10000]; // M68K_BANK_SIZE\r
528 };\r
529#ifdef DRC_SH2\r
530 unsigned short drcblk_da[2][1 << (12 - SH2_DRCBLK_DA_SHIFT)];\r
531#endif\r
532 union {\r
533 unsigned char b[0x800];\r
534 unsigned short w[0x800/2];\r
535 } sh2_rom_m;\r
536 union {\r
537 unsigned char b[0x400];\r
538 unsigned short w[0x400/2];\r
539 } sh2_rom_s;\r
540 unsigned short pal[0x100];\r
541 unsigned short pal_native[0x100]; // converted to native (for renderer)\r
542 signed short pwm[2*PWM_BUFF_LEN]; // PWM buffer for current frame\r
543 signed short pwm_current[2]; // current converted samples\r
544 unsigned short pwm_fifo[2][4]; // [0] - current raw, others - fifo entries\r
545};\r
546\r
547// area.c\r
548extern void (*PicoLoadStateHook)(void);\r
549\r
550typedef struct {\r
551 int chunk;\r
552 int size;\r
553 void *ptr;\r
554} carthw_state_chunk;\r
555extern carthw_state_chunk *carthw_chunks;\r
556#define CHUNK_CARTHW 64\r
557\r
558// cart.c\r
559extern int PicoCartResize(int newsize);\r
560extern void Byteswap(void *dst, const void *src, int len);\r
561extern void (*PicoCartMemSetup)(void);\r
562extern void (*PicoCartUnloadHook)(void);\r
563\r
564// debug.c\r
565int CM_compareRun(int cyc, int is_sub);\r
566\r
567// draw.c\r
568PICO_INTERNAL void PicoFrameStart(void);\r
569void PicoDrawSync(int to, int blank_last_line);\r
570void BackFill(int reg7, int sh);\r
571void FinalizeLine555(int sh, int line);\r
572extern int (*PicoScanBegin)(unsigned int num);\r
573extern int (*PicoScanEnd)(unsigned int num);\r
574extern int DrawScanline;\r
575#define MAX_LINE_SPRITES 29\r
576extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];\r
577extern void *DrawLineDestBase;\r
578extern int DrawLineDestIncrement;\r
579\r
580// draw2.c\r
581PICO_INTERNAL void PicoFrameFull();\r
582\r
583// mode4.c\r
584void PicoFrameStartMode4(void);\r
585void PicoLineMode4(int line);\r
586void PicoDoHighPal555M4(void);\r
587void PicoDrawSetOutputMode4(pdso_t which);\r
588\r
589// memory.c\r
590PICO_INTERNAL void PicoMemSetup(void);\r
591unsigned int PicoRead8_io(unsigned int a);\r
592unsigned int PicoRead16_io(unsigned int a);\r
593void PicoWrite8_io(unsigned int a, unsigned int d);\r
594void PicoWrite16_io(unsigned int a, unsigned int d);\r
595\r
596// pico/memory.c\r
597PICO_INTERNAL void PicoMemSetupPico(void);\r
598\r
599// cd/memory.c\r
600PICO_INTERNAL void PicoMemSetupCD(void);\r
601void pcd_state_loaded_mem(void);\r
602\r
603// pico.c\r
604extern struct Pico Pico;\r
605extern struct PicoSRAM SRam;\r
606extern int PicoPadInt[2];\r
607extern int emustatus;\r
608extern int scanlines_total;\r
609extern void (*PicoResetHook)(void);\r
610extern void (*PicoLineHook)(void);\r
611PICO_INTERNAL int CheckDMA(void);\r
612PICO_INTERNAL void PicoDetectRegion(void);\r
613PICO_INTERNAL void PicoSyncZ80(unsigned int m68k_cycles_done);\r
614\r
615// cd/mcd.c\r
616#define PCDS_IEN1 (1<<1)\r
617#define PCDS_IEN2 (1<<2)\r
618#define PCDS_IEN3 (1<<3)\r
619#define PCDS_IEN4 (1<<4)\r
620#define PCDS_IEN5 (1<<5)\r
621#define PCDS_IEN6 (1<<6)\r
622\r
623PICO_INTERNAL void PicoInitMCD(void);\r
624PICO_INTERNAL void PicoExitMCD(void);\r
625PICO_INTERNAL void PicoPowerMCD(void);\r
626PICO_INTERNAL int PicoResetMCD(void);\r
627PICO_INTERNAL void PicoFrameMCD(void);\r
628\r
629enum pcd_event {\r
630 PCD_EVENT_CDC,\r
631 PCD_EVENT_TIMER3,\r
632 PCD_EVENT_GFX,\r
633 PCD_EVENT_DMA,\r
634 PCD_EVENT_COUNT,\r
635};\r
636extern unsigned int pcd_event_times[PCD_EVENT_COUNT];\r
637void pcd_event_schedule(unsigned int now, enum pcd_event event, int after);\r
638void pcd_event_schedule_s68k(enum pcd_event event, int after);\r
639unsigned int pcd_cycles_m68k_to_s68k(unsigned int c);\r
640int pcd_sync_s68k(unsigned int m68k_target, int m68k_poll_sync);\r
641void pcd_state_loaded(void);\r
642\r
643// pico/pico.c\r
644PICO_INTERNAL void PicoInitPico(void);\r
645PICO_INTERNAL void PicoReratePico(void);\r
646\r
647// pico/xpcm.c\r
648PICO_INTERNAL void PicoPicoPCMUpdate(short *buffer, int length, int stereo);\r
649PICO_INTERNAL void PicoPicoPCMReset(void);\r
650PICO_INTERNAL void PicoPicoPCMRerate(int xpcm_rate);\r
651\r
652// sek.c\r
653PICO_INTERNAL void SekInit(void);\r
654PICO_INTERNAL int SekReset(void);\r
655PICO_INTERNAL void SekState(int *data);\r
656PICO_INTERNAL void SekSetRealTAS(int use_real);\r
657PICO_INTERNAL void SekPackCpu(unsigned char *cpu, int is_sub);\r
658PICO_INTERNAL void SekUnpackCpu(const unsigned char *cpu, int is_sub);\r
659void SekStepM68k(void);\r
660void SekInitIdleDet(void);\r
661void SekFinishIdleDet(void);\r
662#if defined(CPU_CMP_R) || defined(CPU_CMP_W)\r
663void SekTrace(int is_s68k);\r
664#else\r
665#define SekTrace(x)\r
666#endif\r
667\r
668// cd/sek.c\r
669PICO_INTERNAL void SekInitS68k(void);\r
670PICO_INTERNAL int SekResetS68k(void);\r
671PICO_INTERNAL int SekInterruptS68k(int irq);\r
672\r
673// sound/sound.c\r
674PICO_INTERNAL void cdda_start_play();\r
675extern short cdda_out_buffer[2*1152];\r
676extern int PsndLen_exc_cnt;\r
677extern int PsndLen_exc_add;\r
678extern int timer_a_next_oflow, timer_a_step; // in z80 cycles\r
679extern int timer_b_next_oflow, timer_b_step;\r
680\r
681void ym2612_sync_timers(int z80_cycles, int mode_old, int mode_new);\r
682void ym2612_pack_state(void);\r
683void ym2612_unpack_state(void);\r
684\r
685#define TIMER_NO_OFLOW 0x70000000\r
686// tA = 72 * (1024 - NA) / M\r
687#define TIMER_A_TICK_ZCYCLES 17203\r
688// tB = 1152 * (256 - NA) / M\r
689#define TIMER_B_TICK_ZCYCLES 262800 // 275251 broken, see Dai Makaimura\r
690\r
691#define timers_cycle() \\r
692 if (timer_a_next_oflow > 0 && timer_a_next_oflow < TIMER_NO_OFLOW) \\r
693 timer_a_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
694 if (timer_b_next_oflow > 0 && timer_b_next_oflow < TIMER_NO_OFLOW) \\r
695 timer_b_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \\r
696 ym2612_sync_timers(0, ym2612.OPN.ST.mode, ym2612.OPN.ST.mode);\r
697\r
698#define timers_reset() \\r
699 timer_a_next_oflow = timer_b_next_oflow = TIMER_NO_OFLOW; \\r
700 timer_a_step = TIMER_A_TICK_ZCYCLES * 1024; \\r
701 timer_b_step = TIMER_B_TICK_ZCYCLES * 256;\r
702\r
703\r
704// videoport.c\r
705extern int line_base_cycles;\r
706PICO_INTERNAL_ASM void PicoVideoWrite(unsigned int a,unsigned short d);\r
707PICO_INTERNAL_ASM unsigned int PicoVideoRead(unsigned int a);\r
708PICO_INTERNAL_ASM unsigned int PicoVideoRead8(unsigned int a);\r
709extern int (*PicoDmaHook)(unsigned int source, int len, unsigned short **srcp, unsigned short **limitp);\r
710\r
711// misc.c\r
712PICO_INTERNAL_ASM void memcpy16(unsigned short *dest, unsigned short *src, int count);\r
713PICO_INTERNAL_ASM void memcpy16bswap(unsigned short *dest, void *src, int count);\r
714PICO_INTERNAL_ASM void memcpy32(int *dest, int *src, int count); // 32bit word count\r
715PICO_INTERNAL_ASM void memset32(int *dest, int c, int count);\r
716\r
717// eeprom.c\r
718void EEPROM_write8(unsigned int a, unsigned int d);\r
719void EEPROM_write16(unsigned int d);\r
720unsigned int EEPROM_read(void);\r
721\r
722// z80 functionality wrappers\r
723PICO_INTERNAL void z80_init(void);\r
724PICO_INTERNAL void z80_pack(void *data);\r
725PICO_INTERNAL int z80_unpack(const void *data);\r
726PICO_INTERNAL void z80_reset(void);\r
727PICO_INTERNAL void z80_exit(void);\r
728\r
729// cd/misc.c\r
730PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);\r
731PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);\r
732\r
733// cd/buffering.c\r
734PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);\r
735\r
736// sound/sound.c\r
737PICO_INTERNAL void PsndReset(void);\r
738PICO_INTERNAL void PsndDoDAC(int line_to);\r
739PICO_INTERNAL void PsndClear(void);\r
740PICO_INTERNAL void PsndGetSamples(int y);\r
741PICO_INTERNAL void PsndGetSamplesMS(void);\r
742extern int PsndDacLine;\r
743\r
744// sms.c\r
745#ifndef NO_SMS\r
746void PicoPowerMS(void);\r
747void PicoResetMS(void);\r
748void PicoMemSetupMS(void);\r
749void PicoStateLoadedMS(void);\r
750void PicoFrameMS(void);\r
751void PicoFrameDrawOnlyMS(void);\r
752#else\r
753#define PicoPowerMS()\r
754#define PicoResetMS()\r
755#define PicoMemSetupMS()\r
756#define PicoStateLoadedMS()\r
757#define PicoFrameMS()\r
758#define PicoFrameDrawOnlyMS()\r
759#endif\r
760\r
761// 32x/32x.c\r
762#ifndef NO_32X\r
763extern struct Pico32x Pico32x;\r
764enum p32x_event {\r
765 P32X_EVENT_PWM,\r
766 P32X_EVENT_FILLEND,\r
767 P32X_EVENT_HINT,\r
768 P32X_EVENT_COUNT,\r
769};\r
770extern unsigned int p32x_event_times[P32X_EVENT_COUNT];\r
771\r
772void Pico32xInit(void);\r
773void PicoPower32x(void);\r
774void PicoReset32x(void);\r
775void Pico32xStartup(void);\r
776void PicoUnload32x(void);\r
777void PicoFrame32x(void);\r
778void Pico32xStateLoaded(int is_early);\r
779void p32x_sync_sh2s(unsigned int m68k_target);\r
780void p32x_sync_other_sh2(SH2 *sh2, unsigned int m68k_target);\r
781void p32x_update_irls(SH2 *active_sh2, int m68k_cycles);\r
782void p32x_trigger_irq(SH2 *sh2, int m68k_cycles, unsigned int mask);\r
783void p32x_update_cmd_irq(SH2 *sh2, int m68k_cycles);\r
784void p32x_reset_sh2s(void);\r
785void p32x_event_schedule(unsigned int now, enum p32x_event event, int after);\r
786void p32x_event_schedule_sh2(SH2 *sh2, enum p32x_event event, int after);\r
787void p32x_schedule_hint(SH2 *sh2, int m68k_cycles);\r
788\r
789// 32x/memory.c\r
790struct Pico32xMem *Pico32xMem;\r
791unsigned int PicoRead8_32x(unsigned int a);\r
792unsigned int PicoRead16_32x(unsigned int a);\r
793void PicoWrite8_32x(unsigned int a, unsigned int d);\r
794void PicoWrite16_32x(unsigned int a, unsigned int d);\r
795void PicoMemSetup32x(void);\r
796void Pico32xSwapDRAM(int b);\r
797void Pico32xMemStateLoaded(void);\r
798void p32x_m68k_poll_event(unsigned int flags);\r
799void p32x_sh2_poll_event(SH2 *sh2, unsigned int flags, unsigned int m68k_cycles);\r
800\r
801// 32x/draw.c\r
802void PicoDrawSetOutFormat32x(pdso_t which, int use_32x_line_mode);\r
803void FinalizeLine32xRGB555(int sh, int line);\r
804void PicoDraw32xLayer(int offs, int lines, int mdbg);\r
805void PicoDraw32xLayerMdOnly(int offs, int lines);\r
806extern int (*PicoScan32xBegin)(unsigned int num);\r
807extern int (*PicoScan32xEnd)(unsigned int num);\r
808enum {\r
809 PDM32X_OFF,\r
810 PDM32X_32X_ONLY,\r
811 PDM32X_BOTH,\r
812};\r
813extern int Pico32xDrawMode;\r
814\r
815// 32x/pwm.c\r
816unsigned int p32x_pwm_read16(unsigned int a, SH2 *sh2,\r
817 unsigned int m68k_cycles);\r
818void p32x_pwm_write16(unsigned int a, unsigned int d,\r
819 SH2 *sh2, unsigned int m68k_cycles);\r
820void p32x_pwm_update(int *buf32, int length, int stereo);\r
821void p32x_pwm_ctl_changed(void);\r
822void p32x_pwm_schedule(unsigned int m68k_now);\r
823void p32x_pwm_schedule_sh2(SH2 *sh2);\r
824void p32x_pwm_sync_to_sh2(SH2 *sh2);\r
825void p32x_pwm_irq_event(unsigned int m68k_now);\r
826void p32x_pwm_state_loaded(void);\r
827\r
828// 32x/sh2soc.c\r
829void p32x_dreq0_trigger(void);\r
830void p32x_dreq1_trigger(void);\r
831void p32x_timers_recalc(void);\r
832void p32x_timers_do(unsigned int m68k_slice);\r
833void sh2_peripheral_reset(SH2 *sh2);\r
834unsigned int sh2_peripheral_read8(unsigned int a, SH2 *sh2);\r
835unsigned int sh2_peripheral_read16(unsigned int a, SH2 *sh2);\r
836unsigned int sh2_peripheral_read32(unsigned int a, SH2 *sh2);\r
837void REGPARM(3) sh2_peripheral_write8(unsigned int a, unsigned int d, SH2 *sh2);\r
838void REGPARM(3) sh2_peripheral_write16(unsigned int a, unsigned int d, SH2 *sh2);\r
839void REGPARM(3) sh2_peripheral_write32(unsigned int a, unsigned int d, SH2 *sh2);\r
840\r
841#else\r
842#define Pico32xInit()\r
843#define PicoPower32x()\r
844#define PicoReset32x()\r
845#define PicoFrame32x()\r
846#define PicoUnload32x()\r
847#define Pico32xStateLoaded()\r
848#define FinalizeLine32xRGB555 NULL\r
849#define p32x_pwm_update(...)\r
850#define p32x_timers_recalc()\r
851#endif\r
852\r
853/* avoid dependency on newer glibc */\r
854static __inline int isspace_(int c)\r
855{\r
856 return (0x09 <= c && c <= 0x0d) || c == ' ';\r
857}\r
858\r
859#ifndef ARRAY_SIZE\r
860#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))\r
861#endif\r
862\r
863// emulation event logging\r
864#ifndef EL_LOGMASK\r
865# ifdef __x86_64__ // HACK\r
866# define EL_LOGMASK (EL_STATUS|EL_IDLE|EL_ANOMALY)\r
867# else\r
868# define EL_LOGMASK (EL_STATUS)\r
869# endif\r
870#endif\r
871\r
872#define EL_HVCNT 0x00000001 /* hv counter reads */\r
873#define EL_SR 0x00000002 /* SR reads */\r
874#define EL_INTS 0x00000004 /* ints and acks */\r
875#define EL_YMTIMER 0x00000008 /* ym2612 timer stuff */\r
876#define EL_INTSW 0x00000010 /* log irq switching on/off */\r
877#define EL_ASVDP 0x00000020 /* VDP accesses during active scan */\r
878#define EL_VDPDMA 0x00000040 /* VDP DMA transfers and their timing */\r
879#define EL_BUSREQ 0x00000080 /* z80 busreq r/w or reset w */\r
880#define EL_Z80BNK 0x00000100 /* z80 i/o through bank area */\r
881#define EL_SRAMIO 0x00000200 /* sram i/o */\r
882#define EL_EEPROM 0x00000400 /* eeprom debug */\r
883#define EL_UIO 0x00000800 /* unmapped i/o */\r
884#define EL_IO 0x00001000 /* all i/o */\r
885#define EL_CDPOLL 0x00002000 /* MCD: log poll detection */\r
886#define EL_SVP 0x00004000 /* SVP stuff */\r
887#define EL_PICOHW 0x00008000 /* Pico stuff */\r
888#define EL_IDLE 0x00010000 /* idle loop det. */\r
889#define EL_CDREGS 0x00020000 /* MCD: register access */\r
890#define EL_CDREG3 0x00040000 /* MCD: register 3 only */\r
891#define EL_32X 0x00080000\r
892#define EL_PWM 0x00100000 /* 32X PWM stuff (LOTS of output) */\r
893#define EL_32XP 0x00200000 /* 32X peripherals */\r
894#define EL_CD 0x00400000 /* MCD */\r
895\r
896#define EL_STATUS 0x40000000 /* status messages */\r
897#define EL_ANOMALY 0x80000000 /* some unexpected conditions (during emulation) */\r
898\r
899#if EL_LOGMASK\r
900#define elprintf(w,f,...) \\r
901do { \\r
902 if ((w) & EL_LOGMASK) \\r
903 lprintf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__); \\r
904} while (0)\r
905#elif defined(_MSC_VER)\r
906#define elprintf\r
907#else\r
908#define elprintf(w,f,...)\r
909#endif\r
910\r
911// profiling\r
912#ifdef PPROF\r
913#include <platform/linux/pprof.h>\r
914#else\r
915#define pprof_init()\r
916#define pprof_finish()\r
917#define pprof_start(x)\r
918#define pprof_end(...)\r
919#define pprof_end_sub(...)\r
920#endif\r
921\r
922#ifdef EVT_LOG\r
923enum evt {\r
924 EVT_FRAME_START,\r
925 EVT_NEXT_LINE,\r
926 EVT_RUN_START,\r
927 EVT_RUN_END,\r
928 EVT_POLL_START,\r
929 EVT_POLL_END,\r
930 EVT_CNT\r
931};\r
932\r
933enum evt_cpu {\r
934 EVT_M68K,\r
935 EVT_S68K,\r
936 EVT_MSH2,\r
937 EVT_SSH2,\r
938 EVT_CPU_CNT\r
939};\r
940\r
941void pevt_log(unsigned int cycles, enum evt_cpu c, enum evt e);\r
942void pevt_dump(void);\r
943\r
944#define pevt_log_m68k(e) \\r
945 pevt_log(SekCyclesDone(), EVT_M68K, e)\r
946#define pevt_log_m68k_o(e) \\r
947 pevt_log(SekCyclesDone(), EVT_M68K, e)\r
948#define pevt_log_sh2(sh2, e) \\r
949 pevt_log(sh2_cycles_done_m68k(sh2), EVT_MSH2 + (sh2)->is_slave, e)\r
950#define pevt_log_sh2_o(sh2, e) \\r
951 pevt_log((sh2)->m68krcycles_done, EVT_MSH2 + (sh2)->is_slave, e)\r
952#else\r
953#define pevt_log(c, e)\r
954#define pevt_log_m68k(e)\r
955#define pevt_log_m68k_o(e)\r
956#define pevt_log_sh2(sh2, e)\r
957#define pevt_log_sh2_o(sh2, e)\r
958#define pevt_dump()\r
959#endif\r
960\r
961// misc\r
962#ifdef _MSC_VER\r
963#define cdprintf\r
964#else\r
965#define cdprintf(x...)\r
966#endif\r
967\r
968#if defined(__GNUC__) && defined(__i386__)\r
969#define REGPARM(x) __attribute__((regparm(x)))\r
970#else\r
971#define REGPARM(x)\r
972#endif\r
973\r
974#ifdef __GNUC__\r
975#define NOINLINE __attribute__((noinline))\r
976#else\r
977#define NOINLINE\r
978#endif\r
979\r
980#ifdef __cplusplus\r
981} // End of extern "C"\r
982#endif\r
983\r
984#endif // PICO_INTERNAL_INCLUDED\r
985\r