extern const unsigned char hcounts_32[];\r
extern const unsigned char hcounts_40[];\r
extern const unsigned short vcounts[];\r
-extern int rendstatus;\r
\r
#ifndef UTYPES_DEFINED\r
typedef unsigned char u8;\r
{\r
case 1: if(a&1) d=(u16)((d<<8)|(d>>8)); // If address is odd, bytes are swapped (which game needs this?)\r
Pico.vram [(a>>1)&0x7fff]=d;\r
- rendstatus|=0x10; break;\r
+ rendstatus |= PDRAW_DIRTY_SPRITES; break;\r
case 3: Pico.m.dirtyPal = 1;\r
Pico.cram [(a>>1)&0x003f]=d; break; // wraps (Desert Strike)\r
case 5: Pico.vsram[(a>>1)&0x003f]=d; break;\r
Pico.video.type, source, a, len, inc, (Pico.video.status&8)||!(Pico.video.reg[1]&0x40),\r
SekCyclesDone(), SekPc);\r
\r
- if(Pico.m.scanline != -1) {\r
+ if (Pico.m.scanline != -1) {\r
Pico.m.dma_xfers += len;\r
- if ((PicoMCD&1) && (PicoOpt & 0x2000)) SekCyclesBurn(CheckDMA());\r
+ if ((PicoAHW & PAHW_MCD) && (PicoOpt & POPT_EN_MCD_PSYNC)) SekCyclesBurn(CheckDMA());\r
else SekSetCyclesLeftNoMCD(SekCyclesLeftNoMCD - CheckDMA());\r
} else {\r
// be approximate in non-accurate mode\r
if ((source&0xe00000)==0xe00000) { // Ram\r
pd=(u16 *)(Pico.ram+(source&0xfffe));\r
pdend=(u16 *)(Pico.ram+0x10000);\r
- } else if (PicoMCD & 1) {\r
+ }\r
+ else if (PicoAHW & PAHW_MCD)\r
+ {\r
elprintf(EL_VDPDMA, "DmaSlow CD, r3=%02x", Pico_mcd->s68k_regs[3]);\r
if(source<0x20000) { // Bios area\r
pd=(u16 *)(Pico_mcd->bios+(source&~1));\r
elprintf(EL_VDPDMA|EL_ANOMALY, "DmaSlow[%i] %06x->%04x: FIXME: unsupported src", Pico.video.type, source, a);\r
return;\r
}\r
- } else {\r
+ }\r
+ else\r
+ {\r
// if we have DmaHook, let it handle ROM because of possible DMA delay\r
if (PicoDmaHook && PicoDmaHook(source, len, &pd, &pdend));\r
else if (source<Pico.romsize) { // Rom\r
//if(pd >= pdend) pd-=0x8000; // should be good for RAM, bad for ROM\r
}\r
}\r
- rendstatus|=0x10;\r
+ rendstatus |= PDRAW_DIRTY_SPRITES;\r
break;\r
\r
case 3: // cram\r
}\r
// remember addr\r
Pico.video.addr=a;\r
- rendstatus|=0x10;\r
+ rendstatus |= PDRAW_DIRTY_SPRITES;\r
}\r
\r
// check: Contra, Megaman\r
// update length\r
Pico.video.reg[0x13] = Pico.video.reg[0x14] = 0; // Dino Dini's Soccer (E) (by Haze)\r
\r
- rendstatus|=0x10;\r
+ rendstatus |= PDRAW_DIRTY_SPRITES;\r
}\r
\r
static void CommandDma(void)\r
else\r
{\r
// preliminary FIFO emulation for Chaos Engine, The (E)\r
- if(!(pvid->status&8) && (pvid->reg[1]&0x40) && Pico.m.scanline!=-1 && !(PicoOpt&0x10000)) // active display, accurate mode?\r
+ if(!(pvid->status&8) && (pvid->reg[1]&0x40) && Pico.m.scanline!=-1 && !(PicoOpt&POPT_DIS_VDP_FIFO)) // active display, accurate mode?\r
{\r
pvid->status&=~0x200; // FIFO no longer empty\r
pvid->lwrite_cnt++;\r
pvid->command|=d;\r
pvid->pending=0;\r
CommandChange();\r
- } else {\r
- if((d&0xc000)==0x8000)\r
+ }\r
+ else\r
+ {\r
+ if ((d&0xc000)==0x8000)\r
{\r
// Register write:\r
int num=(d>>8)&0x1f;\r
int dold=pvid->reg[num];\r
+ pvid->type=0; // register writes clear command (else no Sega logo in Golden Axe II)\r
if (num > 0x0a && !(pvid->reg[1]&4)) {\r
elprintf(EL_ANOMALY, "%02x written to reg %02x in SMS mode @ %06x", d, num, SekPc);\r
+ return;\r
} else\r
- pvid->reg[num]=(unsigned char)d;\r
- if (num==00) elprintf(EL_INTSW, "hint_onoff: %i->%i [%i] pend=%i @ %06x", (dold&0x10)>>4,\r
- (d&0x10)>>4, SekCyclesDone(), (pvid->pending_ints&0x10)>>4, SekPc);\r
- if (num==01) elprintf(EL_INTSW, "vint_onoff: %i->%i [%i] pend=%i @ %06x", (dold&0x20)>>5,\r
- (d&0x20)>>5, SekCyclesDone(), (pvid->pending_ints&0x20)>>5, SekPc);\r
- if (num == 5 && (d^dold)) rendstatus|=1;\r
- // renderers should update their palettes if sh/hi mode is changed\r
- else if (num == 0xc && ((d^dold)&8)) Pico.m.dirtyPal = 2;\r
+ pvid->reg[num]=(unsigned char)d;\r
+\r
+ switch (num)\r
+ {\r
+ case 0x00:\r
+ elprintf(EL_INTSW, "hint_onoff: %i->%i [%i] pend=%i @ %06x", (dold&0x10)>>4,\r
+ (d&0x10)>>4, SekCyclesDone(), (pvid->pending_ints&0x10)>>4, SekPc);\r
+ goto update_irq;\r
+ case 0x01:\r
+ elprintf(EL_INTSW, "vint_onoff: %i->%i [%i] pend=%i @ %06x", (dold&0x20)>>5,\r
+ (d&0x20)>>5, SekCyclesDone(), (pvid->pending_ints&0x20)>>5, SekPc);\r
+ if (!(d&0x40) && SekCyclesLeft > 420) { /*elprintf(EL_ANOMALY, "aa %i", SekCyclesLeft);*/ rendstatus |= PDRAW_EARLY_BLANK; }\r
+ goto update_irq;\r
+ case 0x05:\r
+ if (d^dold) rendstatus |= PDRAW_SPRITES_MOVED;\r
+ break;\r
+ case 0x0c:\r
+ // renderers should update their palettes if sh/hi mode is changed\r
+ if ((d^dold)&8) Pico.m.dirtyPal = 2;\r
+ break;\r
+ }\r
+ return;\r
+\r
+update_irq:\r
#ifndef EMU_CORE_DEBUG\r
// update IRQ level (Lemmings, Wiz 'n' Liz intro, ... )\r
// may break if done improperly:\r
// International Superstar Soccer Deluxe (crash), Street Racer (logos), Burning Force (gfx),\r
// Fatal Rewind (crash), Sesame Street Counting Cafe\r
- else if (num < 2)\r
+ if (!SekShouldInterrupt) // hack\r
{\r
- if (!SekShouldInterrupt) // hack\r
- {\r
- int lines, pints, irq=0;\r
- lines = (pvid->reg[1] & 0x20) | (pvid->reg[0] & 0x10);\r
- pints = (pvid->pending_ints&lines);\r
- if(pints & 0x20) irq = 6;\r
- else if(pints & 0x10) irq = 4;\r
- SekInterrupt(irq); // update line\r
-\r
- if (irq && Pico.m.scanline!=-1) SekEndRun(24); // make it delayed\r
- }\r
+ int lines, pints, irq=0;\r
+ lines = (pvid->reg[1] & 0x20) | (pvid->reg[0] & 0x10);\r
+ pints = (pvid->pending_ints&lines);\r
+ if(pints & 0x20) irq = 6;\r
+ else if(pints & 0x10) irq = 4;\r
+ SekInterrupt(irq); // update line\r
+\r
+ if (irq && Pico.m.scanline!=-1) SekEndRun(24); // make it delayed\r
}\r
#endif\r
- pvid->type=0; // register writes clear command (else no Sega logo in Golden Axe II)\r
- } else {\r
+ }\r
+ else\r
+ {\r
// High word of command:\r
pvid->command&=0x0000ffff;\r
pvid->command|=d<<16;\r
{\r
struct PicoVideo *pv=&Pico.video;\r
d=pv->status;\r
- if (PicoOpt&0x10) d|=0x0020; // sprite collision (Shadow of the Beast)\r
- if (!(pv->reg[1]&0x40)) d|=0x0008; // set V-Blank if display is disabled\r
- if (SekCyclesLeft < 84+4) d|=0x0004; // H-Blank (Sonic3 vs)\r
+ if (PicoOpt&POPT_ALT_RENDERER) d|=0x0020; // sprite collision (Shadow of the Beast)\r
+ if (!(pv->reg[1]&0x40)) d|=0x0008; // set V-Blank if display is disabled\r
+ if (SekCyclesLeft < 84+4) d|=0x0004; // H-Blank (Sonic3 vs)\r
\r
d|=(pv->pending_ints&0x20)<<2; // V-int pending?\r
if (d&0x100) pv->status&=~0x100; // FIFO no longer full\r
notaz.gp2x.de / picodrive.git / blobdiff