int PicoSkipFrame=0; // skip rendering frame?\r
int PicoRegionOverride = 0; // override the region detection 0: Auto, 1: Japan NTSC, 2: Japan PAL, 4: US, 8: Europe\r
int PicoAutoRgnOrder = 0;\r
-int emustatus = 0;\r
+int emustatus = 0; // rapid_ym2612, multi_ym_updates\r
void (*PicoWriteSound)(int len) = 0; // called once per frame at the best time to send sound buffer (PsndOut) to hardware\r
\r
-struct PicoSRAM SRam;\r
+struct PicoSRAM SRam = {0,};\r
int z80startCycle, z80stopCycle; // in 68k cycles\r
-//int z80ExtraCycles = 0;\r
int PicoPad[2]; // Joypads, format is SACB RLDU\r
-int PicoMCD = 0; // mega CD status: scd_started, reset_pending\r
+int PicoMCD = 0; // mega CD status: scd_started\r
\r
// to be called once on emu init\r
int PicoInit(void)\r
PicoInitMCD();\r
\r
SRam.data=0;\r
- SRam.resize=1;\r
\r
return 0;\r
}\r
unsigned int region=0;\r
int support=0,hw=0,i=0;\r
unsigned char pal=0;\r
+ unsigned char sram_reg=Pico.m.sram_reg; // must be preserved\r
\r
if (Pico.romsize<=0) return 1;\r
\r
- // setup correct memory map\r
- if (PicoMCD & 1)\r
- PicoMemSetupCD();\r
- else PicoMemSetup();\r
PicoMemReset();\r
SekReset();\r
// s68k doesn't have the TAS quirk, so we just globally set normal TAS handler in MCD mode (used by Batman games).\r
return 0;\r
}\r
\r
- if(SRam.resize) {\r
- int sram_size = 0;\r
- if(SRam.data) free(SRam.data); SRam.data=0;\r
- Pico.m.sram_reg = 0;\r
-\r
- if(*(Pico.rom+0x1B1) == 'R' && *(Pico.rom+0x1B0) == 'A') {\r
- if(*(Pico.rom+0x1B2) & 0x40) {\r
- // EEPROM\r
- // what kind of EEPROMs are actually used? X24C02? X24C04? (X24C01 has only 128), but we will support up to 8K\r
- SRam.start = PicoRead32(0x1B4) & ~1; // zero address is used for clock by some games\r
- SRam.end = PicoRead32(0x1B8);\r
- sram_size = 0x2000;\r
- Pico.m.sram_reg = 4;\r
- } else {\r
- // normal SRAM\r
- SRam.start = PicoRead32(0x1B4) & 0xFFFF00;\r
- SRam.end = PicoRead32(0x1B8) | 1;\r
- sram_size = SRam.end - SRam.start + 1;\r
- }\r
- Pico.m.sram_reg |= 0x10; // SRAM was detected\r
- }\r
- if(sram_size <= 0) {\r
- // some games may have bad headers, like S&K and Sonic3\r
- SRam.start = 0x200000;\r
- SRam.end = 0x203FFF;\r
- sram_size = 0x004000;\r
- }\r
+ // reset sram state; enable sram access by default if it doesn't overlap with ROM\r
+ Pico.m.sram_reg=sram_reg&0x14;\r
+ if (!(Pico.m.sram_reg&4) && Pico.romsize <= SRam.start) Pico.m.sram_reg |= 1;\r
\r
- // enable sram access by default if it doesn't overlap with ROM\r
- if(Pico.romsize <= SRam.start) Pico.m.sram_reg |= 1;\r
- SRam.reg_back = Pico.m.sram_reg;\r
-\r
- if(sram_size) {\r
- SRam.data = (unsigned char *) calloc(sram_size, 1);\r
- if(!SRam.data) return 1;\r
- }\r
- SRam.resize=0;\r
- // Dino Dini's Soccer malfunctions if SRAM is not filled with 0xff\r
- if (strncmp((char *)Pico.rom+0x150, "IDOND NI'I", 10) == 0)\r
- memset(SRam.data, 0xff, sram_size);\r
- elprintf(EL_STATUS, "sram: det: %i; eeprom: %i; start: %06x; end: %06x",\r
- (Pico.m.sram_reg>>4)&1, (Pico.m.sram_reg>>2)&1, SRam.start, SRam.end);\r
- }\r
-\r
- Pico.m.sram_reg = SRam.reg_back; // restore sram_reg\r
- SRam.changed = 0;\r
+ elprintf(EL_STATUS, "sram: det: %i; eeprom: %i; start: %06x; end: %06x",\r
+ (Pico.m.sram_reg>>4)&1, (Pico.m.sram_reg>>2)&1, SRam.start, SRam.end);\r
\r
return 0;\r
}\r
\r
+\r
// dma2vram settings are just hacks to unglitch Legend of Galahad (needs <= 104 to work)\r
// same for Outrunners (92-121, when active is set to 24)\r
static const int dma_timings[] = {\r
return burn;\r
}\r
\r
-static __inline void SekRun(int cyc)\r
+static __inline void SekRunM68k(int cyc)\r
{\r
int cyc_do;\r
SekCycleAim+=cyc;\r
PicoCpu.cycles=cyc_do;\r
CycloneRun(&PicoCpu);\r
SekCycleCnt+=cyc_do-PicoCpu.cycles;\r
-#elif defined(EMU_A68K)\r
- m68k_ICount=cyc_do;\r
- M68000_RUN();\r
- SekCycleCnt+=cyc_do-m68k_ICount;\r
#elif defined(EMU_M68K)\r
SekCycleCnt+=m68k_execute(cyc_do);\r
+#elif defined(EMU_F68K)\r
+ SekCycleCnt+=m68k_emulate(cyc_do);\r
#endif\r
}\r
\r
PicoCpu.cycles=1;\r
CycloneRun(&PicoCpu);\r
SekCycleCnt+=1-PicoCpu.cycles;\r
-#elif defined(EMU_A68K)\r
- m68k_ICount=1;\r
- M68000_RUN();\r
- SekCycleCnt+=1-m68k_ICount;\r
#elif defined(EMU_M68K)\r
SekCycleCnt+=m68k_execute(1);\r
+#elif defined(EMU_F68K)\r
+ SekCycleCnt+=m68k_emulate(1);\r
#endif\r
SekCycleAim=realaim;\r
}\r
return 0;\r
}\r
\r
+void lprintf_al(const char *fmt, ...);\r
+\r
// to be called on 224 or line_sample scanlines only\r
static __inline void getSamples(int y)\r
{\r
#include "PicoFrameHints.c"\r
#endif\r
\r
-// helper z80 runner\r
+// helper z80 runner. Runs only if z80 is enabled at this point\r
+// (z80WriteBusReq will handle the rest)\r
static void PicoRunZ80Simple(int line_from, int line_to)\r
{\r
- int line_from_r=line_from, line_to_r=line_to, line = line_from;\r
+ int line_from_r=line_from, line_to_r=line_to, line=0;\r
int line_sample = Pico.m.pal ? 68 : 93;\r
\r
- if(!(PicoOpt&4) || Pico.m.z80Run == 0) { line_from_r = line_to_r; line_to_r = 0; }\r
+ if (!(PicoOpt&4) || Pico.m.z80Run == 0) line_to_r = 0;\r
+ else {\r
+ extern const unsigned short vcounts[];\r
+ if (z80startCycle) {\r
+ line = vcounts[z80startCycle>>8];\r
+ if (line > line_from)\r
+ line_from_r = line;\r
+ }\r
+ z80startCycle = SekCyclesDone();\r
+ }\r
\r
- if(PicoOpt&1) {\r
+ if (PicoOpt&1) {\r
// we have ym2612 enabled, so we have to run Z80 in lines, so we could update DAC and timers\r
- for(; line < line_to; line++) {\r
+ for (line = line_from; line < line_to; line++) {\r
sound_timers_and_dac(line);\r
- if((line == 224 || line == line_sample) && PsndOut) getSamples(line);\r
- if(line == 32 && PsndOut) emustatus &= ~1;\r
- if(line >= line_from_r && line < line_to_r)\r
+ if ((line == 224 || line == line_sample) && PsndOut) getSamples(line);\r
+ if (line == 32 && PsndOut) emustatus &= ~1;\r
+ if (line >= line_from_r && line < line_to_r)\r
z80_run(228);\r
}\r
- } else if(line_to_r-line_from_r > 0) {\r
+ } else if (line_to_r-line_from_r > 0) {\r
z80_run(228*(line_to_r-line_from_r));\r
// samples will be taken by caller\r
}\r
Pico.video.status|=0x200;\r
\r
Pico.m.scanline=-1;\r
+ z80startCycle=0;\r
\r
SekCyclesReset();\r
\r
if (CheckIdle()) break;\r
\r
lines += lines_step;\r
- SekRun(cycles_68k_block);\r
+ SekRunM68k(cycles_68k_block);\r
\r
PicoRunZ80Simple(line, lines);\r
line=lines;\r
if(sects) {\r
int c = sects*cycles_68k_block;\r
\r
- lines += sects*lines_step;\r
- PicoRunZ80Simple(line, lines);\r
- // this is for approriate line counter, etc\r
+ // this "run" is for approriate line counter, etc\r
SekCycleCnt += c;\r
SekCycleAim += c;\r
+\r
+ lines += sects*lines_step;\r
+ PicoRunZ80Simple(line, lines);\r
}\r
\r
// here we render sound if ym2612 is disabled\r
// a gap between flags set and vint\r
pv->pending_ints|=0x20;\r
pv->status|=8; // go into vblank\r
- SekRun(68+4);\r
+ SekRunM68k(68+4);\r
\r
// ---- V-Blanking period ----\r
// fix line counts\r
while (sects) {\r
lines += lines_step;\r
\r
- SekRun(cycles_68k_vblock);\r
+ SekRunM68k(cycles_68k_vblock);\r
\r
PicoRunZ80Simple(line, lines);\r
line=lines;\r
// callback to output message from emu\r
void (*PicoMessage)(const char *msg)=NULL;\r
\r
-#if defined(__DEBUG_PRINT) || defined(__GP2X__)\r
+#if 1 // defined(__DEBUG_PRINT)\r
// tmp debug: dump some stuff\r
#define bit(r, x) ((r>>x)&1)\r
void z80_debug(char *dstr);\r
sprintf(dstrp, "mode set 4: %02x\n", (r=reg[0xC])); dstrp+=strlen(dstrp);\r
sprintf(dstrp, "interlace: %i%i, cells: %i, shadow: %i\n", bit(r,2), bit(r,1), (r&0x80) ? 40 : 32, bit(r,3));\r
dstrp+=strlen(dstrp);\r
- sprintf(dstrp, "scroll size: w: %i, h: %i SRAM: %i; eeprom: %i\n", reg[0x10]&3, (reg[0x10]&0x30)>>4,\r
- bit(Pico.m.sram_reg, 4), bit(Pico.m.sram_reg, 2)); dstrp+=strlen(dstrp);\r
+ sprintf(dstrp, "scroll size: w: %i, h: %i SRAM: %i; eeprom: %i (%i)\n", reg[0x10]&3, (reg[0x10]&0x30)>>4,\r
+ bit(Pico.m.sram_reg, 4), bit(Pico.m.sram_reg, 2), SRam.eeprom_type); dstrp+=strlen(dstrp);\r
sprintf(dstrp, "sram range: %06x-%06x, reg: %02x\n", SRam.start, SRam.end, Pico.m.sram_reg); dstrp+=strlen(dstrp);\r
sprintf(dstrp, "pend int: v:%i, h:%i, vdp status: %04x\n", bit(pv->pending_ints,5), bit(pv->pending_ints,4), pv->status);\r
dstrp+=strlen(dstrp);\r
-#ifdef EMU_C68K\r
+#if defined(EMU_C68K)\r
sprintf(dstrp, "M68k: PC: %06x, st_flg: %x, cycles: %u\n", SekPc, PicoCpu.state_flags, SekCyclesDoneT());\r
dstrp+=strlen(dstrp);\r
sprintf(dstrp, "d0=%08x, a0=%08x, osp=%08x, irql=%i\n", PicoCpu.d[0], PicoCpu.a[0], PicoCpu.osp, PicoCpu.irq); dstrp+=strlen(dstrp);\r
for(r=2; r < 8; r++) {\r
sprintf(dstrp, "d%i=%08x, a%i=%08x\n", r, PicoCpu.d[r], r, PicoCpu.a[r]); dstrp+=strlen(dstrp);\r
}\r
+#elif defined(EMU_M68K)\r
+ sprintf(dstrp, "M68k: PC: %06x, cycles: %u, irql: %i\n", SekPc, SekCyclesDoneT(), PicoM68kCPU.int_level>>8); dstrp+=strlen(dstrp);\r
+#elif defined(EMU_F68K)\r
+ sprintf(dstrp, "M68k: PC: %06x, cycles: %u, irql: %i\n", SekPc, SekCyclesDoneT(), PicoCpuM68k.interrupts[0]); dstrp+=strlen(dstrp);\r
#endif\r
sprintf(dstrp, "z80Run: %i, pal: %i, frame#: %i\n", Pico.m.z80Run, Pico.m.pal, Pico.m.frame_count); dstrp+=strlen(dstrp);\r
z80_debug(dstrp); dstrp+=strlen(dstrp);\r