PicoInt.h 19 KB

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  1. // Pico Library - Internal Header File
  2. // (c) Copyright 2004 Dave, All rights reserved.
  3. // (c) Copyright 2006-2008 Grazvydas "notaz" Ignotas, all rights reserved.
  4. // Free for non-commercial use.
  5. // For commercial use, separate licencing terms must be obtained.
  6. #ifndef PICO_INTERNAL_INCLUDED
  7. #define PICO_INTERNAL_INCLUDED
  8. #include <stdio.h>
  9. #include <stdlib.h>
  10. #include <string.h>
  11. #include "Pico.h"
  12. #include "carthw/carthw.h"
  13. //
  14. #define USE_POLL_DETECT
  15. #ifndef PICO_INTERNAL
  16. #define PICO_INTERNAL
  17. #endif
  18. #ifndef PICO_INTERNAL_ASM
  19. #define PICO_INTERNAL_ASM
  20. #endif
  21. // to select core, define EMU_C68K, EMU_M68K or EMU_F68K in your makefile or project
  22. #ifdef __cplusplus
  23. extern "C" {
  24. #endif
  25. // ----------------------- 68000 CPU -----------------------
  26. #ifdef EMU_C68K
  27. #include "../cpu/Cyclone/Cyclone.h"
  28. extern struct Cyclone PicoCpuCM68k, PicoCpuCS68k;
  29. #define SekCyclesLeftNoMCD PicoCpuCM68k.cycles // cycles left for this run
  30. #define SekCyclesLeft \
  31. (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)
  32. #define SekCyclesLeftS68k \
  33. ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuCS68k.cycles)
  34. #define SekSetCyclesLeftNoMCD(c) PicoCpuCM68k.cycles=c
  35. #define SekSetCyclesLeft(c) { \
  36. if ((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) SekCycleCnt=SekCycleAim-(c); else SekSetCyclesLeftNoMCD(c); \
  37. }
  38. #define SekPc (PicoCpuCM68k.pc-PicoCpuCM68k.membase)
  39. #define SekPcS68k (PicoCpuCS68k.pc-PicoCpuCS68k.membase)
  40. #define SekSetStop(x) { PicoCpuCM68k.state_flags&=~1; if (x) { PicoCpuCM68k.state_flags|=1; PicoCpuCM68k.cycles=0; } }
  41. #define SekSetStopS68k(x) { PicoCpuCS68k.state_flags&=~1; if (x) { PicoCpuCS68k.state_flags|=1; PicoCpuCS68k.cycles=0; } }
  42. #define SekIsStoppedS68k() (PicoCpuCS68k.state_flags&1)
  43. #define SekShouldInterrupt (PicoCpuCM68k.irq > (PicoCpuCM68k.srh&7))
  44. #define SekInterrupt(i) PicoCpuCM68k.irq=i
  45. #ifdef EMU_M68K
  46. #define EMU_CORE_DEBUG
  47. #endif
  48. #endif
  49. #ifdef EMU_F68K
  50. #include "../cpu/fame/fame.h"
  51. extern M68K_CONTEXT PicoCpuFM68k, PicoCpuFS68k;
  52. #define SekCyclesLeftNoMCD PicoCpuFM68k.io_cycle_counter
  53. #define SekCyclesLeft \
  54. (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)
  55. #define SekCyclesLeftS68k \
  56. ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuFS68k.io_cycle_counter)
  57. #define SekSetCyclesLeftNoMCD(c) PicoCpuFM68k.io_cycle_counter=c
  58. #define SekSetCyclesLeft(c) { \
  59. if ((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) SekCycleCnt=SekCycleAim-(c); else SekSetCyclesLeftNoMCD(c); \
  60. }
  61. #define SekPc fm68k_get_pc(&PicoCpuFM68k)
  62. #define SekPcS68k fm68k_get_pc(&PicoCpuFS68k)
  63. #define SekSetStop(x) { \
  64. PicoCpuFM68k.execinfo &= ~FM68K_HALTED; \
  65. if (x) { PicoCpuFM68k.execinfo |= FM68K_HALTED; PicoCpuFM68k.io_cycle_counter = 0; } \
  66. }
  67. #define SekSetStopS68k(x) { \
  68. PicoCpuFS68k.execinfo &= ~FM68K_HALTED; \
  69. if (x) { PicoCpuFS68k.execinfo |= FM68K_HALTED; PicoCpuFS68k.io_cycle_counter = 0; } \
  70. }
  71. #define SekIsStoppedS68k() (PicoCpuFS68k.execinfo&FM68K_HALTED)
  72. #define SekShouldInterrupt fm68k_would_interrupt()
  73. #define SekInterrupt(irq) PicoCpuFM68k.interrupts[0]=irq
  74. #ifdef EMU_M68K
  75. #define EMU_CORE_DEBUG
  76. #endif
  77. #endif
  78. #ifdef EMU_M68K
  79. #include "../cpu/musashi/m68kcpu.h"
  80. extern m68ki_cpu_core PicoCpuMM68k, PicoCpuMS68k;
  81. #ifndef SekCyclesLeft
  82. #define SekCyclesLeftNoMCD PicoCpuMM68k.cyc_remaining_cycles
  83. #define SekCyclesLeft \
  84. (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)
  85. #define SekCyclesLeftS68k \
  86. ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuMS68k.cyc_remaining_cycles)
  87. #define SekSetCyclesLeftNoMCD(c) SET_CYCLES(c)
  88. #define SekSetCyclesLeft(c) { \
  89. if ((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) SekCycleCnt=SekCycleAim-(c); else SET_CYCLES(c); \
  90. }
  91. #define SekPc m68k_get_reg(&PicoCpuMM68k, M68K_REG_PC)
  92. #define SekPcS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_PC)
  93. #define SekSetStop(x) { \
  94. if(x) { SET_CYCLES(0); PicoCpuMM68k.stopped=STOP_LEVEL_STOP; } \
  95. else PicoCpuMM68k.stopped=0; \
  96. }
  97. #define SekSetStopS68k(x) { \
  98. if(x) { SET_CYCLES(0); PicoCpuMS68k.stopped=STOP_LEVEL_STOP; } \
  99. else PicoCpuMS68k.stopped=0; \
  100. }
  101. #define SekIsStoppedS68k() (PicoCpuMS68k.stopped==STOP_LEVEL_STOP)
  102. #define SekShouldInterrupt (CPU_INT_LEVEL > FLAG_INT_MASK)
  103. #define SekInterrupt(irq) { \
  104. void *oldcontext = m68ki_cpu_p; \
  105. m68k_set_context(&PicoCpuMM68k); \
  106. m68k_set_irq(irq); \
  107. m68k_set_context(oldcontext); \
  108. }
  109. #endif
  110. #endif
  111. extern int SekCycleCnt; // cycles done in this frame
  112. extern int SekCycleAim; // cycle aim
  113. extern unsigned int SekCycleCntT; // total cycle counter, updated once per frame
  114. #define SekCyclesReset() { \
  115. SekCycleCntT+=SekCycleAim; \
  116. SekCycleCnt-=SekCycleAim; \
  117. SekCycleAim=0; \
  118. }
  119. #define SekCyclesBurn(c) SekCycleCnt+=c
  120. #define SekCyclesDone() (SekCycleAim-SekCyclesLeft) // number of cycles done in this frame (can be checked anywhere)
  121. #define SekCyclesDoneT() (SekCycleCntT+SekCyclesDone()) // total nuber of cycles done for this rom
  122. #define SekEndRun(after) { \
  123. SekCycleCnt -= SekCyclesLeft - after; \
  124. if(SekCycleCnt < 0) SekCycleCnt = 0; \
  125. SekSetCyclesLeft(after); \
  126. }
  127. extern int SekCycleCntS68k;
  128. extern int SekCycleAimS68k;
  129. #define SekCyclesResetS68k() { \
  130. SekCycleCntS68k-=SekCycleAimS68k; \
  131. SekCycleAimS68k=0; \
  132. }
  133. #define SekCyclesDoneS68k() (SekCycleAimS68k-SekCyclesLeftS68k)
  134. #ifdef EMU_CORE_DEBUG
  135. extern int dbg_irq_level;
  136. #undef SekSetCyclesLeftNoMCD
  137. #undef SekSetCyclesLeft
  138. #undef SekCyclesBurn
  139. #undef SekEndRun
  140. #undef SekInterrupt
  141. #define SekSetCyclesLeftNoMCD(c)
  142. #define SekSetCyclesLeft(c)
  143. #define SekCyclesBurn(c) c
  144. #define SekEndRun(c)
  145. #define SekInterrupt(irq) dbg_irq_level=irq
  146. #endif
  147. // ----------------------- Z80 CPU -----------------------
  148. #if defined(_USE_MZ80)
  149. #include "../cpu/mz80/mz80.h"
  150. #define z80_run(cycles) { mz80GetElapsedTicks(1); mz80_run(cycles) }
  151. #define z80_run_nr(cycles) mz80_run(cycles)
  152. #define z80_int() mz80int(0)
  153. #elif defined(_USE_DRZ80)
  154. #include "../cpu/DrZ80/drz80.h"
  155. extern struct DrZ80 drZ80;
  156. #define z80_run(cycles) ((cycles) - DrZ80Run(&drZ80, cycles))
  157. #define z80_run_nr(cycles) DrZ80Run(&drZ80, cycles)
  158. #define z80_int() drZ80.Z80_IRQ = 1
  159. #define z80_cyclesLeft drZ80.cycles
  160. #elif defined(_USE_CZ80)
  161. #include "../cpu/cz80/cz80.h"
  162. #define z80_run(cycles) Cz80_Exec(&CZ80, cycles)
  163. #define z80_run_nr(cycles) Cz80_Exec(&CZ80, cycles)
  164. #define z80_int() Cz80_Set_IRQ(&CZ80, 0, HOLD_LINE)
  165. #define z80_cyclesLeft (CZ80.ICount - CZ80.ExtraCycles)
  166. #else
  167. #define z80_run(cycles) (cycles)
  168. #define z80_run_nr(cycles)
  169. #define z80_int()
  170. #endif
  171. extern int z80stopCycle; /* in 68k cycles */
  172. extern int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */
  173. extern int z80_cycle_aim;
  174. extern int z80_scanline;
  175. extern int z80_scanline_cycles; /* cycles done until z80_scanline */
  176. #define z80_resetCycles() \
  177. z80_cycle_cnt = z80_cycle_aim = z80_scanline = z80_scanline_cycles = 0;
  178. #define z80_cyclesDone() \
  179. (z80_cycle_aim - z80_cyclesLeft)
  180. #define cycles_68k_to_z80(x) ((x)*957 >> 11)
  181. // ---------------------------------------------------------
  182. // main oscillator clock which controls timing
  183. #define OSC_NTSC 53693100
  184. // seems to be accurate, see scans from http://www.hot.ee/tmeeco/
  185. #define OSC_PAL 53203424
  186. struct PicoVideo
  187. {
  188. unsigned char reg[0x20];
  189. unsigned int command; // 32-bit Command
  190. unsigned char pending; // 1 if waiting for second half of 32-bit command
  191. unsigned char type; // Command type (v/c/vsram read/write)
  192. unsigned short addr; // Read/Write address
  193. int status; // Status bits
  194. unsigned char pending_ints; // pending interrupts: ??VH????
  195. signed char lwrite_cnt; // VDP write count during active display line
  196. unsigned short v_counter; // V-counter
  197. unsigned char pad[0x10];
  198. };
  199. struct PicoMisc
  200. {
  201. unsigned char rotate;
  202. unsigned char z80Run;
  203. unsigned char padTHPhase[2]; // 02 phase of gamepad TH switches
  204. unsigned short scanline; // 04 0 to 261||311
  205. char dirtyPal; // 06 Is the palette dirty (1 - change @ this frame, 2 - some time before)
  206. unsigned char hardware; // 07 Hardware value for country
  207. unsigned char pal; // 08 1=PAL 0=NTSC
  208. unsigned char sram_reg; // SRAM mode register. bit0: allow read? bit1: deny write? bit2: EEPROM? bit4: detected? (header or by access)
  209. unsigned short z80_bank68k; // 0a
  210. unsigned short z80_lastaddr; // this is for Z80 faking
  211. unsigned char z80_fakeval;
  212. unsigned char z80_reset; // z80 reset held
  213. unsigned char padDelay[2]; // 10 gamepad phase time outs, so we count a delay
  214. unsigned short eeprom_addr; // EEPROM address register
  215. unsigned char eeprom_cycle; // EEPROM SRAM cycle number
  216. unsigned char eeprom_slave; // EEPROM slave word for X24C02 and better SRAMs
  217. unsigned char prot_bytes[2]; // simple protection faking
  218. unsigned short dma_xfers; // 18
  219. unsigned char pad[2];
  220. unsigned int frame_count; // 1c for movies and idle det
  221. };
  222. // some assembly stuff depend on these, do not touch!
  223. struct Pico
  224. {
  225. unsigned char ram[0x10000]; // 0x00000 scratch ram
  226. unsigned short vram[0x8000]; // 0x10000
  227. unsigned char zram[0x2000]; // 0x20000 Z80 ram
  228. unsigned char ioports[0x10];
  229. unsigned int pad[0x3c]; // unused
  230. unsigned short cram[0x40]; // 0x22100
  231. unsigned short vsram[0x40]; // 0x22180
  232. unsigned char *rom; // 0x22200
  233. unsigned int romsize; // 0x22204
  234. struct PicoMisc m;
  235. struct PicoVideo video;
  236. };
  237. // sram
  238. struct PicoSRAM
  239. {
  240. unsigned char *data; // actual data
  241. unsigned int start; // start address in 68k address space
  242. unsigned int end;
  243. unsigned char unused1; // 0c: unused
  244. unsigned char unused2;
  245. unsigned char changed;
  246. unsigned char eeprom_type; // eeprom type: 0: 7bit (24C01), 2: device with 2 addr words (X24C02+), 3: dev with 3 addr words
  247. unsigned char eeprom_abits; // eeprom access must be odd addr for: bit0 ~ cl, bit1 ~ out
  248. unsigned char eeprom_bit_cl; // bit number for cl
  249. unsigned char eeprom_bit_in; // bit number for in
  250. unsigned char eeprom_bit_out; // bit number for out
  251. };
  252. // MCD
  253. #include "cd/cd_sys.h"
  254. #include "cd/LC89510.h"
  255. #include "cd/gfx_cd.h"
  256. struct mcd_pcm
  257. {
  258. unsigned char control; // reg7
  259. unsigned char enabled; // reg8
  260. unsigned char cur_ch;
  261. unsigned char bank;
  262. int pad1;
  263. struct pcm_chan // 08, size 0x10
  264. {
  265. unsigned char regs[8];
  266. unsigned int addr; // .08: played sample address
  267. int pad;
  268. } ch[8];
  269. };
  270. struct mcd_misc
  271. {
  272. unsigned short hint_vector;
  273. unsigned char busreq;
  274. unsigned char s68k_pend_ints;
  275. unsigned int state_flags; // 04: emu state: reset_pending, dmna_pending
  276. unsigned int counter75hz;
  277. unsigned int pad0;
  278. int timer_int3; // 10
  279. unsigned int timer_stopwatch;
  280. unsigned char bcram_reg; // 18: battery-backed RAM cart register
  281. unsigned char pad2;
  282. unsigned short pad3;
  283. int pad[9];
  284. };
  285. typedef struct
  286. {
  287. unsigned char bios[0x20000]; // 000000: 128K
  288. union { // 020000: 512K
  289. unsigned char prg_ram[0x80000];
  290. unsigned char prg_ram_b[4][0x20000];
  291. };
  292. union { // 0a0000: 256K
  293. struct {
  294. unsigned char word_ram2M[0x40000];
  295. unsigned char unused0[0x20000];
  296. };
  297. struct {
  298. unsigned char unused1[0x20000];
  299. unsigned char word_ram1M[2][0x20000];
  300. };
  301. };
  302. union { // 100000: 64K
  303. unsigned char pcm_ram[0x10000];
  304. unsigned char pcm_ram_b[0x10][0x1000];
  305. };
  306. unsigned char s68k_regs[0x200]; // 110000: GA, not CPU regs
  307. unsigned char bram[0x2000]; // 110200: 8K
  308. struct mcd_misc m; // 112200: misc
  309. struct mcd_pcm pcm; // 112240:
  310. _scd_toc TOC; // not to be saved
  311. CDD cdd;
  312. CDC cdc;
  313. _scd scd;
  314. Rot_Comp rot_comp;
  315. } mcd_state;
  316. #define Pico_mcd ((mcd_state *)Pico.rom)
  317. // Area.c
  318. PICO_INTERNAL void PicoAreaPackCpu(unsigned char *cpu, int is_sub);
  319. PICO_INTERNAL void PicoAreaUnpackCpu(unsigned char *cpu, int is_sub);
  320. extern void (*PicoLoadStateHook)(void);
  321. // cd/Area.c
  322. PICO_INTERNAL int PicoCdSaveState(void *file);
  323. PICO_INTERNAL int PicoCdLoadState(void *file);
  324. typedef struct {
  325. int chunk;
  326. int size;
  327. void *ptr;
  328. } carthw_state_chunk;
  329. extern carthw_state_chunk *carthw_chunks;
  330. #define CHUNK_CARTHW 64
  331. // Cart.c
  332. extern void (*PicoCartUnloadHook)(void);
  333. // Debug.c
  334. int CM_compareRun(int cyc, int is_sub);
  335. // Draw.c
  336. PICO_INTERNAL void PicoFrameStart(void);
  337. void PicoDrawSync(int to, int blank_last_line);
  338. extern int DrawScanline;
  339. #define MAX_LINE_SPRITES 29
  340. extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];
  341. // Draw2.c
  342. PICO_INTERNAL void PicoFrameFull();
  343. // Memory.c
  344. PICO_INTERNAL void PicoInitPc(unsigned int pc);
  345. PICO_INTERNAL unsigned int PicoCheckPc(unsigned int pc);
  346. PICO_INTERNAL_ASM unsigned int PicoRead32(unsigned int a);
  347. PICO_INTERNAL void PicoMemSetup(void);
  348. PICO_INTERNAL_ASM void PicoMemReset(void);
  349. PICO_INTERNAL void PicoMemResetHooks(void);
  350. PICO_INTERNAL int PadRead(int i);
  351. PICO_INTERNAL unsigned char z80_read(unsigned short a);
  352. #ifndef _USE_CZ80
  353. PICO_INTERNAL_ASM void z80_write(unsigned char data, unsigned short a);
  354. PICO_INTERNAL void z80_write16(unsigned short data, unsigned short a);
  355. PICO_INTERNAL unsigned short z80_read16(unsigned short a);
  356. #else
  357. PICO_INTERNAL_ASM void z80_write(unsigned int a, unsigned char data);
  358. #endif
  359. PICO_INTERNAL int ym2612_write_local(unsigned int a, unsigned int d, int is_from_z80);
  360. extern unsigned int (*PicoRead16Hook)(unsigned int a, int realsize);
  361. extern void (*PicoWrite8Hook) (unsigned int a,unsigned int d,int realsize);
  362. extern void (*PicoWrite16Hook)(unsigned int a,unsigned int d,int realsize);
  363. // cd/Memory.c
  364. PICO_INTERNAL void PicoMemSetupCD(void);
  365. PICO_INTERNAL_ASM void PicoMemResetCD(int r3);
  366. PICO_INTERNAL_ASM void PicoMemResetCDdecode(int r3);
  367. // Pico/Memory.c
  368. PICO_INTERNAL void PicoMemSetupPico(void);
  369. PICO_INTERNAL unsigned int ym2612_read_local_68k(void);
  370. // Pico.c
  371. extern struct Pico Pico;
  372. extern struct PicoSRAM SRam;
  373. extern int PicoPadInt[2];
  374. extern int emustatus;
  375. extern void (*PicoResetHook)(void);
  376. extern void (*PicoLineHook)(void);
  377. PICO_INTERNAL int CheckDMA(void);
  378. PICO_INTERNAL void PicoDetectRegion(void);
  379. PICO_INTERNAL void PicoSyncZ80(int m68k_cycles_done);
  380. // cd/Pico.c
  381. PICO_INTERNAL void PicoInitMCD(void);
  382. PICO_INTERNAL void PicoExitMCD(void);
  383. PICO_INTERNAL void PicoPowerMCD(void);
  384. PICO_INTERNAL int PicoResetMCD(void);
  385. PICO_INTERNAL void PicoFrameMCD(void);
  386. // Pico/Pico.c
  387. PICO_INTERNAL void PicoInitPico(void);
  388. PICO_INTERNAL void PicoReratePico(void);
  389. // Pico/xpcm.c
  390. PICO_INTERNAL void PicoPicoPCMUpdate(short *buffer, int length, int stereo);
  391. PICO_INTERNAL void PicoPicoPCMReset(void);
  392. PICO_INTERNAL void PicoPicoPCMRerate(int xpcm_rate);
  393. // Sek.c
  394. PICO_INTERNAL void SekInit(void);
  395. PICO_INTERNAL int SekReset(void);
  396. PICO_INTERNAL void SekState(int *data);
  397. PICO_INTERNAL void SekSetRealTAS(int use_real);
  398. void SekStepM68k(void);
  399. void SekInitIdleDet(void);
  400. void SekFinishIdleDet(void);
  401. // cd/Sek.c
  402. PICO_INTERNAL void SekInitS68k(void);
  403. PICO_INTERNAL int SekResetS68k(void);
  404. PICO_INTERNAL int SekInterruptS68k(int irq);
  405. // sound/sound.c
  406. PICO_INTERNAL void cdda_start_play();
  407. extern short cdda_out_buffer[2*1152];
  408. extern int PsndLen_exc_cnt;
  409. extern int PsndLen_exc_add;
  410. extern int timer_a_next_oflow, timer_a_step; // in z80 cycles
  411. extern int timer_b_next_oflow, timer_b_step;
  412. void ym2612_sync_timers(int z80_cycles, int mode_old, int mode_new);
  413. void ym2612_pack_state(void);
  414. void ym2612_unpack_state(void);
  415. #define TIMER_NO_OFLOW 0x70000000
  416. // tA = 72 * (1024 - NA) / M
  417. #define TIMER_A_TICK_ZCYCLES 17203
  418. // tB = 1152 * (256 - NA) / M
  419. #define TIMER_B_TICK_ZCYCLES 262800 // 275251 broken, see Dai Makaimura
  420. #define timers_cycle() \
  421. if (timer_a_next_oflow > 0 && timer_a_next_oflow < TIMER_NO_OFLOW) \
  422. timer_a_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \
  423. if (timer_b_next_oflow > 0 && timer_b_next_oflow < TIMER_NO_OFLOW) \
  424. timer_b_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \
  425. ym2612_sync_timers(0, ym2612.OPN.ST.mode, ym2612.OPN.ST.mode);
  426. #define timers_reset() \
  427. timer_a_next_oflow = timer_b_next_oflow = TIMER_NO_OFLOW; \
  428. timer_a_step = TIMER_A_TICK_ZCYCLES * 1024; \
  429. timer_b_step = TIMER_B_TICK_ZCYCLES * 256;
  430. // VideoPort.c
  431. PICO_INTERNAL_ASM void PicoVideoWrite(unsigned int a,unsigned short d);
  432. PICO_INTERNAL_ASM unsigned int PicoVideoRead(unsigned int a);
  433. PICO_INTERNAL_ASM unsigned int PicoVideoRead8(unsigned int a);
  434. extern int (*PicoDmaHook)(unsigned int source, int len, unsigned short **srcp, unsigned short **limitp);
  435. // Misc.c
  436. PICO_INTERNAL void SRAMWriteEEPROM(unsigned int d);
  437. PICO_INTERNAL void SRAMUpdPending(unsigned int a, unsigned int d);
  438. PICO_INTERNAL_ASM unsigned int SRAMReadEEPROM(void);
  439. PICO_INTERNAL_ASM void memcpy16(unsigned short *dest, unsigned short *src, int count);
  440. PICO_INTERNAL_ASM void memcpy16bswap(unsigned short *dest, void *src, int count);
  441. PICO_INTERNAL_ASM void memcpy32(int *dest, int *src, int count); // 32bit word count
  442. PICO_INTERNAL_ASM void memset32(int *dest, int c, int count);
  443. // cd/Misc.c
  444. PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);
  445. PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);
  446. // cd/buffering.c
  447. PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);
  448. // sound/sound.c
  449. PICO_INTERNAL void PsndReset(void);
  450. PICO_INTERNAL void PsndDoDAC(int line_to);
  451. PICO_INTERNAL int PsndRender(int offset, int length);
  452. PICO_INTERNAL void PsndClear(void);
  453. // z80 functionality wrappers
  454. PICO_INTERNAL void z80_init(void);
  455. PICO_INTERNAL void z80_pack(unsigned char *data);
  456. PICO_INTERNAL void z80_unpack(unsigned char *data);
  457. PICO_INTERNAL void z80_reset(void);
  458. PICO_INTERNAL void z80_exit(void);
  459. extern int PsndDacLine;
  460. #ifdef __cplusplus
  461. } // End of extern "C"
  462. #endif
  463. // emulation event logging
  464. #ifndef EL_LOGMASK
  465. #define EL_LOGMASK 0
  466. #endif
  467. #define EL_HVCNT 0x00000001 /* hv counter reads */
  468. #define EL_SR 0x00000002 /* SR reads */
  469. #define EL_INTS 0x00000004 /* ints and acks */
  470. #define EL_YMTIMER 0x00000008 /* ym2612 timer stuff */
  471. #define EL_INTSW 0x00000010 /* log irq switching on/off */
  472. #define EL_ASVDP 0x00000020 /* VDP accesses during active scan */
  473. #define EL_VDPDMA 0x00000040 /* VDP DMA transfers and their timing */
  474. #define EL_BUSREQ 0x00000080 /* z80 busreq r/w or reset w */
  475. #define EL_Z80BNK 0x00000100 /* z80 i/o through bank area */
  476. #define EL_SRAMIO 0x00000200 /* sram i/o */
  477. #define EL_EEPROM 0x00000400 /* eeprom debug */
  478. #define EL_UIO 0x00000800 /* unmapped i/o */
  479. #define EL_IO 0x00001000 /* all i/o */
  480. #define EL_CDPOLL 0x00002000 /* MCD: log poll detection */
  481. #define EL_SVP 0x00004000 /* SVP stuff */
  482. #define EL_PICOHW 0x00008000 /* Pico stuff */
  483. #define EL_IDLE 0x00010000 /* idle loop det. */
  484. #define EL_STATUS 0x40000000 /* status messages */
  485. #define EL_ANOMALY 0x80000000 /* some unexpected conditions (during emulation) */
  486. #if EL_LOGMASK
  487. extern void lprintf(const char *fmt, ...);
  488. #define elprintf(w,f,...) \
  489. { \
  490. if ((w) & EL_LOGMASK) \
  491. lprintf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__); \
  492. }
  493. #elif defined(_MSC_VER)
  494. #define elprintf
  495. #else
  496. #define elprintf(w,f,...)
  497. #endif
  498. #ifdef _MSC_VER
  499. #define cdprintf
  500. #else
  501. #define cdprintf(x...)
  502. #endif
  503. #endif // PICO_INTERNAL_INCLUDED