pico_int.h 20 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 SekEndTimeslice(after) PicoCpuCM68k.cycles=after
  35. #define SekEndTimesliceS68k(after) PicoCpuCS68k.cycles=after
  36. #define SekPc (PicoCpuCM68k.pc-PicoCpuCM68k.membase)
  37. #define SekPcS68k (PicoCpuCS68k.pc-PicoCpuCS68k.membase)
  38. #define SekSetStop(x) { PicoCpuCM68k.state_flags&=~1; if (x) { PicoCpuCM68k.state_flags|=1; PicoCpuCM68k.cycles=0; } }
  39. #define SekSetStopS68k(x) { PicoCpuCS68k.state_flags&=~1; if (x) { PicoCpuCS68k.state_flags|=1; PicoCpuCS68k.cycles=0; } }
  40. #define SekIsStoppedS68k() (PicoCpuCS68k.state_flags&1)
  41. #define SekShouldInterrupt (PicoCpuCM68k.irq > (PicoCpuCM68k.srh&7))
  42. #define SekInterrupt(i) PicoCpuCM68k.irq=i
  43. #ifdef EMU_M68K
  44. #define EMU_CORE_DEBUG
  45. #endif
  46. #endif
  47. #ifdef EMU_F68K
  48. #include "../cpu/fame/fame.h"
  49. extern M68K_CONTEXT PicoCpuFM68k, PicoCpuFS68k;
  50. #define SekCyclesLeftNoMCD PicoCpuFM68k.io_cycle_counter
  51. #define SekCyclesLeft \
  52. (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)
  53. #define SekCyclesLeftS68k \
  54. ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuFS68k.io_cycle_counter)
  55. #define SekEndTimeslice(after) PicoCpuFM68k.io_cycle_counter=after
  56. #define SekEndTimesliceS68k(after) PicoCpuFS68k.io_cycle_counter=after
  57. #define SekPc fm68k_get_pc(&PicoCpuFM68k)
  58. #define SekPcS68k fm68k_get_pc(&PicoCpuFS68k)
  59. #define SekSetStop(x) { \
  60. PicoCpuFM68k.execinfo &= ~FM68K_HALTED; \
  61. if (x) { PicoCpuFM68k.execinfo |= FM68K_HALTED; PicoCpuFM68k.io_cycle_counter = 0; } \
  62. }
  63. #define SekSetStopS68k(x) { \
  64. PicoCpuFS68k.execinfo &= ~FM68K_HALTED; \
  65. if (x) { PicoCpuFS68k.execinfo |= FM68K_HALTED; PicoCpuFS68k.io_cycle_counter = 0; } \
  66. }
  67. #define SekIsStoppedS68k() (PicoCpuFS68k.execinfo&FM68K_HALTED)
  68. #define SekShouldInterrupt fm68k_would_interrupt()
  69. #define SekInterrupt(irq) PicoCpuFM68k.interrupts[0]=irq
  70. #ifdef EMU_M68K
  71. #define EMU_CORE_DEBUG
  72. #endif
  73. #endif
  74. #ifdef EMU_M68K
  75. #include "../cpu/musashi/m68kcpu.h"
  76. extern m68ki_cpu_core PicoCpuMM68k, PicoCpuMS68k;
  77. #ifndef SekCyclesLeft
  78. #define SekCyclesLeftNoMCD PicoCpuMM68k.cyc_remaining_cycles
  79. #define SekCyclesLeft \
  80. (((PicoAHW&1) && (PicoOpt & POPT_EN_MCD_PSYNC)) ? (SekCycleAim-SekCycleCnt) : SekCyclesLeftNoMCD)
  81. #define SekCyclesLeftS68k \
  82. ((PicoOpt & POPT_EN_MCD_PSYNC) ? (SekCycleAimS68k-SekCycleCntS68k) : PicoCpuMS68k.cyc_remaining_cycles)
  83. #define SekEndTimeslice(after) SET_CYCLES(after)
  84. #define SekEndTimesliceS68k(after) PicoCpuMS68k.cyc_remaining_cycles=after
  85. #define SekPc m68k_get_reg(&PicoCpuMM68k, M68K_REG_PC)
  86. #define SekPcS68k m68k_get_reg(&PicoCpuMS68k, M68K_REG_PC)
  87. #define SekSetStop(x) { \
  88. if(x) { SET_CYCLES(0); PicoCpuMM68k.stopped=STOP_LEVEL_STOP; } \
  89. else PicoCpuMM68k.stopped=0; \
  90. }
  91. #define SekSetStopS68k(x) { \
  92. if(x) { SET_CYCLES(0); PicoCpuMS68k.stopped=STOP_LEVEL_STOP; } \
  93. else PicoCpuMS68k.stopped=0; \
  94. }
  95. #define SekIsStoppedS68k() (PicoCpuMS68k.stopped==STOP_LEVEL_STOP)
  96. #define SekShouldInterrupt (CPU_INT_LEVEL > FLAG_INT_MASK)
  97. #define SekInterrupt(irq) { \
  98. void *oldcontext = m68ki_cpu_p; \
  99. m68k_set_context(&PicoCpuMM68k); \
  100. m68k_set_irq(irq); \
  101. m68k_set_context(oldcontext); \
  102. }
  103. #endif
  104. #endif // EMU_M68K
  105. extern int SekCycleCnt; // cycles done in this frame
  106. extern int SekCycleAim; // cycle aim
  107. extern unsigned int SekCycleCntT; // total cycle counter, updated once per frame
  108. #define SekCyclesReset() { \
  109. SekCycleCntT+=SekCycleAim; \
  110. SekCycleCnt-=SekCycleAim; \
  111. SekCycleAim=0; \
  112. }
  113. #define SekCyclesBurn(c) SekCycleCnt+=c
  114. #define SekCyclesDone() (SekCycleAim-SekCyclesLeft) // number of cycles done in this frame (can be checked anywhere)
  115. #define SekCyclesDoneT() (SekCycleCntT+SekCyclesDone()) // total nuber of cycles done for this rom
  116. #define SekEndRun(after) { \
  117. SekCycleCnt -= SekCyclesLeft - (after); \
  118. if (SekCycleCnt < 0) SekCycleCnt = 0; \
  119. SekEndTimeslice(after); \
  120. }
  121. #define SekEndRunS68k(after) { \
  122. SekCycleCntS68k -= SekCyclesLeftS68k - (after); \
  123. if (SekCycleCntS68k < 0) SekCycleCntS68k = 0; \
  124. SekEndTimesliceS68k(after); \
  125. }
  126. extern int SekCycleCntS68k;
  127. extern int SekCycleAimS68k;
  128. #define SekCyclesResetS68k() { \
  129. SekCycleCntS68k-=SekCycleAimS68k; \
  130. SekCycleAimS68k=0; \
  131. }
  132. #define SekCyclesDoneS68k() (SekCycleAimS68k-SekCyclesLeftS68k)
  133. #ifdef EMU_CORE_DEBUG
  134. extern int dbg_irq_level;
  135. #undef SekEndTimeslice
  136. #undef SekCyclesBurn
  137. #undef SekEndRun
  138. #undef SekInterrupt
  139. #define SekEndTimeslice(c)
  140. #define SekCyclesBurn(c) c
  141. #define SekEndRun(c)
  142. #define SekInterrupt(irq) dbg_irq_level=irq
  143. #endif
  144. // ----------------------- Z80 CPU -----------------------
  145. #if defined(_USE_MZ80)
  146. #include "../cpu/mz80/mz80.h"
  147. #define z80_run(cycles) { mz80GetElapsedTicks(1); mz80_run(cycles) }
  148. #define z80_run_nr(cycles) mz80_run(cycles)
  149. #define z80_int() mz80int(0)
  150. #elif defined(_USE_DRZ80)
  151. #include "../cpu/DrZ80/drz80.h"
  152. extern struct DrZ80 drZ80;
  153. #define z80_run(cycles) ((cycles) - DrZ80Run(&drZ80, cycles))
  154. #define z80_run_nr(cycles) DrZ80Run(&drZ80, cycles)
  155. #define z80_int() drZ80.Z80_IRQ = 1
  156. #define z80_cyclesLeft drZ80.cycles
  157. #define z80_pc() (drZ80.Z80PC - drZ80.Z80PC_BASE)
  158. #elif defined(_USE_CZ80)
  159. #include "../cpu/cz80/cz80.h"
  160. #define z80_run(cycles) Cz80_Exec(&CZ80, cycles)
  161. #define z80_run_nr(cycles) Cz80_Exec(&CZ80, cycles)
  162. #define z80_int() Cz80_Set_IRQ(&CZ80, 0, HOLD_LINE)
  163. #define z80_cyclesLeft (CZ80.ICount - CZ80.ExtraCycles)
  164. #define z80_pc() Cz80_Get_Reg(&CZ80, CZ80_PC)
  165. #else
  166. #define z80_run(cycles) (cycles)
  167. #define z80_run_nr(cycles)
  168. #define z80_int()
  169. #endif
  170. extern int z80stopCycle; /* in 68k cycles */
  171. extern int z80_cycle_cnt; /* 'done' z80 cycles before z80_run() */
  172. extern int z80_cycle_aim;
  173. extern int z80_scanline;
  174. extern int z80_scanline_cycles; /* cycles done until z80_scanline */
  175. #define z80_resetCycles() \
  176. z80_cycle_cnt = z80_cycle_aim = z80_scanline = z80_scanline_cycles = 0;
  177. #define z80_cyclesDone() \
  178. (z80_cycle_aim - z80_cyclesLeft)
  179. #define cycles_68k_to_z80(x) ((x)*957 >> 11)
  180. #define Z80_MEM_SHIFT 13
  181. extern unsigned long z80_read_map [0x10000 >> Z80_MEM_SHIFT];
  182. extern unsigned long z80_write_map[0x10000 >> Z80_MEM_SHIFT];
  183. typedef unsigned char (z80_read_f)(unsigned short a);
  184. typedef void (z80_write_f)(unsigned int a, unsigned char data);
  185. // ---------------------------------------------------------
  186. // main oscillator clock which controls timing
  187. #define OSC_NTSC 53693100
  188. #define OSC_PAL 53203424
  189. struct PicoVideo
  190. {
  191. unsigned char reg[0x20];
  192. unsigned int command; // 32-bit Command
  193. unsigned char pending; // 1 if waiting for second half of 32-bit command
  194. unsigned char type; // Command type (v/c/vsram read/write)
  195. unsigned short addr; // Read/Write address
  196. int status; // Status bits
  197. unsigned char pending_ints; // pending interrupts: ??VH????
  198. signed char lwrite_cnt; // VDP write count during active display line
  199. unsigned short v_counter; // V-counter
  200. unsigned char pad[0x10];
  201. };
  202. struct PicoMisc
  203. {
  204. unsigned char rotate;
  205. unsigned char z80Run;
  206. unsigned char padTHPhase[2]; // 02 phase of gamepad TH switches
  207. unsigned short scanline; // 04 0 to 261||311
  208. char dirtyPal; // 06 Is the palette dirty (1 - change @ this frame, 2 - some time before)
  209. unsigned char hardware; // 07 Hardware value for country
  210. unsigned char pal; // 08 1=PAL 0=NTSC
  211. unsigned char sram_reg; // 09 SRAM reg. See SRR_* below
  212. unsigned short z80_bank68k; // 0a
  213. unsigned short z80_lastaddr; // this is for Z80 faking
  214. unsigned char pad0;
  215. unsigned char z80_reset; // z80 reset held
  216. unsigned char padDelay[2]; // 10 gamepad phase time outs, so we count a delay
  217. unsigned short eeprom_addr; // EEPROM address register
  218. unsigned char eeprom_cycle; // EEPROM cycle number
  219. unsigned char eeprom_slave; // EEPROM slave word for X24C02 and better SRAMs
  220. unsigned char eeprom_status;
  221. unsigned char pad1;
  222. unsigned short dma_xfers; // 18
  223. unsigned char eeprom_wb[2]; // EEPROM latch/write buffer
  224. unsigned int frame_count; // 1c for movies and idle det
  225. };
  226. // some assembly stuff depend on these, do not touch!
  227. struct Pico
  228. {
  229. unsigned char ram[0x10000]; // 0x00000 scratch ram
  230. union { // vram is byteswapped for easier reads when drawing
  231. unsigned short vram[0x8000]; // 0x10000
  232. unsigned char vramb[0x4000]; // VRAM in SMS mode
  233. };
  234. unsigned char zram[0x2000]; // 0x20000 Z80 ram
  235. unsigned char ioports[0x10];
  236. unsigned char sms_io_ctl;
  237. unsigned char pad[0xef]; // unused
  238. unsigned short cram[0x40]; // 0x22100
  239. unsigned short vsram[0x40]; // 0x22180
  240. unsigned char *rom; // 0x22200
  241. unsigned int romsize; // 0x22204
  242. struct PicoMisc m;
  243. struct PicoVideo video;
  244. };
  245. // sram
  246. #define SRR_MAPPED (1 << 0)
  247. #define SRR_READONLY (1 << 1)
  248. #define SRF_ENABLED (1 << 0)
  249. #define SRF_EEPROM (1 << 1)
  250. struct PicoSRAM
  251. {
  252. unsigned char *data; // actual data
  253. unsigned int start; // start address in 68k address space
  254. unsigned int end;
  255. unsigned char flags; // 0c: SRF_*
  256. unsigned char unused2;
  257. unsigned char changed;
  258. unsigned char eeprom_type; // eeprom type: 0: 7bit (24C01), 2: 2 addr words (X24C02+), 3: 3 addr words
  259. unsigned char unused3;
  260. unsigned char eeprom_bit_cl; // bit number for cl
  261. unsigned char eeprom_bit_in; // bit number for in
  262. unsigned char eeprom_bit_out; // bit number for out
  263. unsigned int size;
  264. };
  265. // MCD
  266. #include "cd/cd_sys.h"
  267. #include "cd/LC89510.h"
  268. #include "cd/gfx_cd.h"
  269. struct mcd_pcm
  270. {
  271. unsigned char control; // reg7
  272. unsigned char enabled; // reg8
  273. unsigned char cur_ch;
  274. unsigned char bank;
  275. int pad1;
  276. struct pcm_chan // 08, size 0x10
  277. {
  278. unsigned char regs[8];
  279. unsigned int addr; // .08: played sample address
  280. int pad;
  281. } ch[8];
  282. };
  283. struct mcd_misc
  284. {
  285. unsigned short hint_vector;
  286. unsigned char busreq;
  287. unsigned char s68k_pend_ints;
  288. unsigned int state_flags; // 04: emu state: reset_pending
  289. unsigned int counter75hz;
  290. unsigned int pad0;
  291. int timer_int3; // 10
  292. unsigned int timer_stopwatch;
  293. unsigned char bcram_reg; // 18: battery-backed RAM cart register
  294. unsigned char pad2;
  295. unsigned short pad3;
  296. int pad[9];
  297. };
  298. typedef struct
  299. {
  300. unsigned char bios[0x20000]; // 000000: 128K
  301. union { // 020000: 512K
  302. unsigned char prg_ram[0x80000];
  303. unsigned char prg_ram_b[4][0x20000];
  304. };
  305. union { // 0a0000: 256K
  306. struct {
  307. unsigned char word_ram2M[0x40000];
  308. unsigned char unused0[0x20000];
  309. };
  310. struct {
  311. unsigned char unused1[0x20000];
  312. unsigned char word_ram1M[2][0x20000];
  313. };
  314. };
  315. union { // 100000: 64K
  316. unsigned char pcm_ram[0x10000];
  317. unsigned char pcm_ram_b[0x10][0x1000];
  318. };
  319. unsigned char s68k_regs[0x200]; // 110000: GA, not CPU regs
  320. unsigned char bram[0x2000]; // 110200: 8K
  321. struct mcd_misc m; // 112200: misc
  322. struct mcd_pcm pcm; // 112240:
  323. _scd_toc TOC; // not to be saved
  324. CDD cdd;
  325. CDC cdc;
  326. _scd scd;
  327. Rot_Comp rot_comp;
  328. } mcd_state;
  329. #define Pico_mcd ((mcd_state *)Pico.rom)
  330. // area.c
  331. PICO_INTERNAL void PicoAreaPackCpu(unsigned char *cpu, int is_sub);
  332. PICO_INTERNAL void PicoAreaUnpackCpu(unsigned char *cpu, int is_sub);
  333. extern void (*PicoLoadStateHook)(void);
  334. // cd/area.c
  335. PICO_INTERNAL int PicoCdSaveState(void *file);
  336. PICO_INTERNAL int PicoCdLoadState(void *file);
  337. typedef struct {
  338. int chunk;
  339. int size;
  340. void *ptr;
  341. } carthw_state_chunk;
  342. extern carthw_state_chunk *carthw_chunks;
  343. #define CHUNK_CARTHW 64
  344. // area.c
  345. typedef size_t (arearw)(void *p, size_t _size, size_t _n, void *file);
  346. typedef size_t (areaeof)(void *file);
  347. typedef int (areaseek)(void *file, long offset, int whence);
  348. typedef int (areaclose)(void *file);
  349. extern arearw *areaRead; // external read and write function pointers for
  350. extern arearw *areaWrite; // gzip save state ability
  351. extern areaeof *areaEof;
  352. extern areaseek *areaSeek;
  353. extern areaclose *areaClose;
  354. // cart.c
  355. extern void (*PicoCartMemSetup)(void);
  356. extern void (*PicoCartUnloadHook)(void);
  357. // debug.c
  358. int CM_compareRun(int cyc, int is_sub);
  359. // draw.c
  360. PICO_INTERNAL void PicoFrameStart(void);
  361. void PicoDrawSync(int to, int blank_last_line);
  362. void BackFill(int reg7, int sh);
  363. void FinalizeLineRGB555(int sh);
  364. extern int DrawScanline;
  365. #define MAX_LINE_SPRITES 29
  366. extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];
  367. // draw2.c
  368. PICO_INTERNAL void PicoFrameFull();
  369. // mode4.c
  370. void PicoFrameStartMode4(void);
  371. void PicoLineMode4(int line);
  372. void PicoDoHighPal555M4(void);
  373. void PicoDrawSetColorFormatMode4(int which);
  374. // memory.c
  375. PICO_INTERNAL void PicoInitPc(unsigned int pc);
  376. PICO_INTERNAL unsigned int PicoCheckPc(unsigned int pc);
  377. PICO_INTERNAL void PicoMemSetup(void);
  378. unsigned int PicoRead8_io(unsigned int a);
  379. unsigned int PicoRead16_io(unsigned int a);
  380. void PicoWrite8_io(unsigned int a, unsigned int d);
  381. void PicoWrite16_io(unsigned int a, unsigned int d);
  382. // pico/memory.c
  383. PICO_INTERNAL void PicoMemSetupPico(void);
  384. // cd/memory.c
  385. PICO_INTERNAL void PicoMemSetupCD(void);
  386. PICO_INTERNAL_ASM void PicoMemRemapCD(int r3);
  387. PICO_INTERNAL_ASM void PicoMemResetCDdecode(int r3);
  388. // pico.c
  389. extern struct Pico Pico;
  390. extern struct PicoSRAM SRam;
  391. extern int PicoPadInt[2];
  392. extern int emustatus;
  393. extern void (*PicoResetHook)(void);
  394. extern void (*PicoLineHook)(void);
  395. PICO_INTERNAL int CheckDMA(void);
  396. PICO_INTERNAL void PicoDetectRegion(void);
  397. PICO_INTERNAL void PicoSyncZ80(int m68k_cycles_done);
  398. // cd/pico.c
  399. PICO_INTERNAL void PicoInitMCD(void);
  400. PICO_INTERNAL void PicoExitMCD(void);
  401. PICO_INTERNAL void PicoPowerMCD(void);
  402. PICO_INTERNAL int PicoResetMCD(void);
  403. PICO_INTERNAL void PicoFrameMCD(void);
  404. // pico/pico.c
  405. PICO_INTERNAL void PicoInitPico(void);
  406. PICO_INTERNAL void PicoReratePico(void);
  407. // pico/xpcm.c
  408. PICO_INTERNAL void PicoPicoPCMUpdate(short *buffer, int length, int stereo);
  409. PICO_INTERNAL void PicoPicoPCMReset(void);
  410. PICO_INTERNAL void PicoPicoPCMRerate(int xpcm_rate);
  411. // sek.c
  412. PICO_INTERNAL void SekInit(void);
  413. PICO_INTERNAL int SekReset(void);
  414. PICO_INTERNAL void SekState(int *data);
  415. PICO_INTERNAL void SekSetRealTAS(int use_real);
  416. void SekStepM68k(void);
  417. void SekInitIdleDet(void);
  418. void SekFinishIdleDet(void);
  419. // cd/sek.c
  420. PICO_INTERNAL void SekInitS68k(void);
  421. PICO_INTERNAL int SekResetS68k(void);
  422. PICO_INTERNAL int SekInterruptS68k(int irq);
  423. // sound/sound.c
  424. PICO_INTERNAL void cdda_start_play();
  425. extern short cdda_out_buffer[2*1152];
  426. extern int PsndLen_exc_cnt;
  427. extern int PsndLen_exc_add;
  428. extern int timer_a_next_oflow, timer_a_step; // in z80 cycles
  429. extern int timer_b_next_oflow, timer_b_step;
  430. void ym2612_sync_timers(int z80_cycles, int mode_old, int mode_new);
  431. void ym2612_pack_state(void);
  432. void ym2612_unpack_state(void);
  433. #define TIMER_NO_OFLOW 0x70000000
  434. // tA = 72 * (1024 - NA) / M
  435. #define TIMER_A_TICK_ZCYCLES 17203
  436. // tB = 1152 * (256 - NA) / M
  437. #define TIMER_B_TICK_ZCYCLES 262800 // 275251 broken, see Dai Makaimura
  438. #define timers_cycle() \
  439. if (timer_a_next_oflow > 0 && timer_a_next_oflow < TIMER_NO_OFLOW) \
  440. timer_a_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \
  441. if (timer_b_next_oflow > 0 && timer_b_next_oflow < TIMER_NO_OFLOW) \
  442. timer_b_next_oflow -= Pico.m.pal ? 70938*256 : 59659*256; \
  443. ym2612_sync_timers(0, ym2612.OPN.ST.mode, ym2612.OPN.ST.mode);
  444. #define timers_reset() \
  445. timer_a_next_oflow = timer_b_next_oflow = TIMER_NO_OFLOW; \
  446. timer_a_step = TIMER_A_TICK_ZCYCLES * 1024; \
  447. timer_b_step = TIMER_B_TICK_ZCYCLES * 256;
  448. // videoport.c
  449. PICO_INTERNAL_ASM void PicoVideoWrite(unsigned int a,unsigned short d);
  450. PICO_INTERNAL_ASM unsigned int PicoVideoRead(unsigned int a);
  451. PICO_INTERNAL_ASM unsigned int PicoVideoRead8(unsigned int a);
  452. extern int (*PicoDmaHook)(unsigned int source, int len, unsigned short **srcp, unsigned short **limitp);
  453. // misc.c
  454. PICO_INTERNAL_ASM void memcpy16(unsigned short *dest, unsigned short *src, int count);
  455. PICO_INTERNAL_ASM void memcpy16bswap(unsigned short *dest, void *src, int count);
  456. PICO_INTERNAL_ASM void memcpy32(int *dest, int *src, int count); // 32bit word count
  457. PICO_INTERNAL_ASM void memset32(int *dest, int c, int count);
  458. // eeprom.c
  459. void EEPROM_write8(unsigned int a, unsigned int d);
  460. void EEPROM_write16(unsigned int d);
  461. unsigned int EEPROM_read(void);
  462. // z80 functionality wrappers
  463. PICO_INTERNAL void z80_init(void);
  464. PICO_INTERNAL void z80_pack(unsigned char *data);
  465. PICO_INTERNAL void z80_unpack(unsigned char *data);
  466. PICO_INTERNAL void z80_reset(void);
  467. PICO_INTERNAL void z80_exit(void);
  468. // cd/misc.c
  469. PICO_INTERNAL_ASM void wram_2M_to_1M(unsigned char *m);
  470. PICO_INTERNAL_ASM void wram_1M_to_2M(unsigned char *m);
  471. // cd/buffering.c
  472. PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba);
  473. // sound/sound.c
  474. PICO_INTERNAL void PsndReset(void);
  475. PICO_INTERNAL void PsndDoDAC(int line_to);
  476. PICO_INTERNAL void PsndClear(void);
  477. PICO_INTERNAL void PsndGetSamples(int y);
  478. PICO_INTERNAL void PsndGetSamplesMS(void);
  479. extern int PsndDacLine;
  480. // sms.c
  481. void PicoPowerMS(void);
  482. void PicoResetMS(void);
  483. void PicoMemSetupMS(void);
  484. void PicoFrameMS(void);
  485. void PicoFrameDrawOnlyMS(void);
  486. /* avoid dependency on newer glibc */
  487. static __inline int isspace_(int c)
  488. {
  489. return (0x09 <= c && c <= 0x0d) || c == ' ';
  490. }
  491. // emulation event logging
  492. #ifndef EL_LOGMASK
  493. #define EL_LOGMASK 0
  494. #endif
  495. #define EL_HVCNT 0x00000001 /* hv counter reads */
  496. #define EL_SR 0x00000002 /* SR reads */
  497. #define EL_INTS 0x00000004 /* ints and acks */
  498. #define EL_YMTIMER 0x00000008 /* ym2612 timer stuff */
  499. #define EL_INTSW 0x00000010 /* log irq switching on/off */
  500. #define EL_ASVDP 0x00000020 /* VDP accesses during active scan */
  501. #define EL_VDPDMA 0x00000040 /* VDP DMA transfers and their timing */
  502. #define EL_BUSREQ 0x00000080 /* z80 busreq r/w or reset w */
  503. #define EL_Z80BNK 0x00000100 /* z80 i/o through bank area */
  504. #define EL_SRAMIO 0x00000200 /* sram i/o */
  505. #define EL_EEPROM 0x00000400 /* eeprom debug */
  506. #define EL_UIO 0x00000800 /* unmapped i/o */
  507. #define EL_IO 0x00001000 /* all i/o */
  508. #define EL_CDPOLL 0x00002000 /* MCD: log poll detection */
  509. #define EL_SVP 0x00004000 /* SVP stuff */
  510. #define EL_PICOHW 0x00008000 /* Pico stuff */
  511. #define EL_IDLE 0x00010000 /* idle loop det. */
  512. #define EL_CDREGS 0x00020000 /* MCD: register access */
  513. #define EL_CDREG3 0x00040000 /* MCD: register 3 only */
  514. #define EL_STATUS 0x40000000 /* status messages */
  515. #define EL_ANOMALY 0x80000000 /* some unexpected conditions (during emulation) */
  516. #if EL_LOGMASK
  517. extern void lprintf(const char *fmt, ...);
  518. #define elprintf(w,f,...) \
  519. { \
  520. if ((w) & EL_LOGMASK) \
  521. lprintf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__); \
  522. }
  523. #elif defined(_MSC_VER)
  524. #define elprintf
  525. #else
  526. #define elprintf(w,f,...)
  527. #endif
  528. #ifdef _MSC_VER
  529. #define cdprintf
  530. #else
  531. #define cdprintf(x...)
  532. #endif
  533. #if defined(__GNUC__) && __GNUC__ >= 4 && __GNUC_MINOR__ >= 3
  534. #define MEMH_FUNC __attribute__((aligned(4)))
  535. #else
  536. #define MEMH_FUNC
  537. #endif
  538. #ifdef __cplusplus
  539. } // End of extern "C"
  540. #endif
  541. #endif // PICO_INTERNAL_INCLUDED