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GB Video: Fix oam-bug 1

This commit is contained in:
Jeffrey Pfau 2016-02-05 20:44:49 -08:00
parent adc57d0da7
commit c60251de73
1 changed files with 7 additions and 5 deletions
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12
src/gb/video.c
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@ -201,14 +201,16 @@ static void _cleanOAM(struct GBVideo* video, int y) {
void GBVideoWriteLCDC(struct GBVideo* video, GBRegisterLCDC value) {
if (!GBRegisterLCDCIsEnable(video->p->memory.io[REG_LCDC]) && GBRegisterLCDCIsEnable(value)) {
// TODO: Does enabling the LCD start in vblank?
video->mode = 2;
video->nextMode = GB_VIDEO_MODE_2_LENGTH;
video->nextMode = GB_VIDEO_MODE_2_LENGTH - 5; // TODO: Why is this fudge factor needed? Might be related to T-cycles for load/store differing
video->nextEvent = video->nextMode;
video->eventDiff = 0;
video->stat = GBRegisterSTATSetMode(video->stat, video->mode);
video->eventDiff = -video->p->cpu->cycles;
// TODO: Does this read as 0 for 4 T-cycles?
video->stat = GBRegisterSTATSetMode(video->stat, 2);
video->p->memory.io[REG_STAT] = video->stat;
video->eventDiff = 0;
video->ly = 0;
video->p->memory.io[REG_LY] = 0;
if (video->p->cpu->cycles + video->nextEvent < video->p->cpu->nextEvent) {
video->p->cpu->nextEvent = video->p->cpu->cycles + video->nextEvent;
}