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d_mystwarr: deal with picky game. grr

This commit is contained in:
dinkc64 2018-06-23 03:39:43 +00:00
parent 0fdc163af7
commit 4eef789684
1 changed files with 15 additions and 8 deletions
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23
src/burn/drv/konami/d_mystwarr.cpp
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@ -2844,8 +2844,10 @@ static INT32 DrvFrame()
ZetNewFrame();
INT32 nInterleave = 60;
//INT32 nCyclesTotal[2] = { 16000000 / 60, 8000000 / 60 };
INT32 nCyclesTotal[2] = { (INT32)((double)16000000 / 59.185606), (INT32)((double)8000000 / 59.185606) };
INT32 nCyclesDone[2] = { 0, 0 };
INT32 drawn = 0;
SekOpen(0);
ZetOpen(0);
@ -2857,17 +2859,12 @@ static INT32 DrvFrame()
{
if (i == 0)
SekSetIRQLine(4, CPU_IRQSTATUS_AUTO);
if (i == ((nInterleave * 240)/256)) {
// note: mystwarr is really picky.
// draw @ vbl: weird flickers between scene transitions in attract sequence, so we draw at end of frame instead.
if (i == ((nInterleave * (240+10))/256)) { // +10 otherwise flickers on char.selection screen (mystwarr)
SekSetIRQLine(2, CPU_IRQSTATUS_AUTO);
}
}
if (i == ((nInterleave * 240)/256)) {
if (pBurnDraw) {
DrvDraw();
}
}
}
if (nGame == 2 || nGame == 3)
@ -2883,7 +2880,9 @@ static INT32 DrvFrame()
SekSetIRQLine(5, CPU_IRQSTATUS_AUTO);
if (pBurnDraw) {
// draw here to fix flickery and missing text in service mode
DrvDraw();
drawn = 1;
}
}
}
@ -2902,6 +2901,7 @@ static INT32 DrvFrame()
if (i == ((nInterleave * 247) / 256)) {
if (pBurnDraw) {
DrvDraw();
drawn = 1;
}
}
}
@ -2913,6 +2913,7 @@ static INT32 DrvFrame()
if (pBurnDraw) {
DrvDraw();
drawn = 1;
}
}
}
@ -2934,6 +2935,12 @@ static INT32 DrvFrame()
ZetClose();
SekClose();
if (!drawn) {
if (pBurnDraw) {
DrvDraw();
}
}
return 0;
}