-// This is part of Pico Library\r
+// PicoDrive\r
\r
// (c) Copyright 2004 Dave, All rights reserved.\r
-// (c) Copyright 2006-2007, Grazvydas "notaz" Ignotas\r
+// (c) Copyright 2006-2008, Grazvydas "notaz" Ignotas\r
// Free for non-commercial use.\r
\r
// For commercial use, separate licencing terms must be obtained.\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 |= PDRAW_DIRTY_SPRITES; break;\r
+ if (a - ((unsigned)(Pico.video.reg[5]&0x7f) << 9) < 0x400)\r
+ rendstatus |= PDRAW_DIRTY_SPRITES;\r
+ 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
SekCyclesBurn(32); // penalty // 488/12-8\r
if (SekCycleCnt>=SekCycleAim) SekEndRun(0);\r
}\r
- elprintf(EL_ASVDP, "VDP data write: %04x {%i} #%i @ %06x", d, Pico.video.type, pvid->lwrite_cnt, SekPc);\r
+ elprintf(EL_ASVDP, "VDP data write: %04x [%06x] {%i} #%i @ %06x", d, Pico.video.addr,\r
+ Pico.video.type, pvid->lwrite_cnt, SekPc);\r
}\r
VideoWrite(d);\r
}\r
// Register write:\r
int num=(d>>8)&0x1f;\r
int dold=pvid->reg[num];\r
- int update_irq = 0, blank_on = 0;\r
+ int blank_on = 0;\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
}\r
\r
+ if (num == 1 && !(d&0x40) && SekCyclesLeft > 390) blank_on = 1;\r
+ DrawSync(blank_on);\r
+ pvid->reg[num]=(unsigned char)d;\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
- update_irq = 1;\r
- break;\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 > 390) blank_on = 1;\r
- update_irq = 1;\r
- break;\r
+ goto update_irq;\r
case 0x05:\r
+ //elprintf(EL_STATUS, "spritep moved to %04x", (unsigned)(Pico.video.reg[5]&0x7f) << 9);\r
if (d^dold) rendstatus |= PDRAW_SPRITES_MOVED;\r
break;\r
case 0x0c:\r
if ((d^dold)&8) Pico.m.dirtyPal = 2;\r
break;\r
}\r
- DrawSync(blank_on);\r
- pvid->reg[num]=(unsigned char)d;\r
- if (!update_irq) return;\r
+ return;\r
\r
+update_irq:\r
#ifndef EMU_CORE_DEBUG\r
// update IRQ level\r
if (!SekShouldInterrupt) // hack\r
{\r
unsigned int d;\r
int lineCycles;\r
- \r
+\r
lineCycles = (488-SekCyclesLeft)&0x1ff;\r
if (Pico.video.reg[12]&1)\r
d = hcounts_40[lineCycles];\r