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ssv, experimental lag fix plus fix pastelis 2p split screen mode

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This commit is contained in:
dinkc64 2021-11-18 10:12:50 -05:00
parent 007dadfc97
commit fcbd9540ba
1 changed files with 25 additions and 18 deletions
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43
src/burn/drv/pst90s/d_ssv.cpp
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@ -3917,11 +3917,33 @@ static INT32 DrvFrame()
for (INT32 i = 0; i < nInterleave; i++)
{
line_cycles = v60TotalCycles();
if (i == 0) { // start in vblank (was line 240) for 1frame less input lag
if (use_spritedelay) {
memcpy(DrvScrollRAMDelayed, DrvScrollRAM, 0x80);
memcpy(DrvSprRAMDelayed, DrvSprRAM, 0x40000);
}
vblank = 1;
requested_int |= 1 << 3;
update_irq_state();
}
if (i == 22) { // adjusted end-of-vblank
vblank = 0;
no_rasters = 1;
}
CPU_RUN(0, v60);
if (i == 120+22 && pastelis) {
requested_int |= 1 << 2;
update_irq_state();
draw_next_line = 1;
}
if (draw_next_line != -1) {
no_rasters = 0;
DrvDrawScanline(i - 1);
no_rasters = 0; // we're doing a raster update
DrvDrawScanline(i - 23);
draw_next_line = -1;
}
@ -3938,23 +3960,8 @@ static INT32 DrvFrame()
requested_int |= 1 << 6;
update_irq_state();
}
if (i == 120 && pastelis) {
requested_int |= 1 << 2;
update_irq_state();
}
if (i == 240) {
DrvDrawEnd();
if (use_spritedelay) {
memcpy(DrvScrollRAMDelayed, DrvScrollRAM, 0x80);
memcpy(DrvSprRAMDelayed, DrvSprRAM, 0x40000);
}
vblank = 1;
requested_int |= 1 << 3;
update_irq_state();
}
}
DrvDrawEnd();
v60Close();