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GB Video: Register LYC during Vblank

This commit is contained in:
Jeffrey Pfau 2016-01-27 23:00:23 -08:00
parent b9e6ac954d
commit 1589b26ade
1 changed files with 5 additions and 1 deletions
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6
src/gb/video.c
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@ -85,11 +85,11 @@ int32_t GBVideoProcessEvents(struct GBVideo* video, int32_t cycles) {
video->nextMode -= video->eventDiff; video->nextMode -= video->eventDiff;
} }
if (video->nextMode <= 0) { if (video->nextMode <= 0) {
int lyc = video->p->memory.io[REG_LYC];
switch (video->mode) { switch (video->mode) {
case 0: case 0:
++video->ly; ++video->ly;
video->p->memory.io[REG_LY] = video->ly; video->p->memory.io[REG_LY] = video->ly;
int lyc = video->p->memory.io[REG_LYC];
video->stat = GBRegisterSTATSetLYC(video->stat, lyc == video->ly); video->stat = GBRegisterSTATSetLYC(video->stat, lyc == video->ly);
if (GBRegisterSTATIsLYCIRQ(video->stat) && lyc == video->ly) { if (GBRegisterSTATIsLYCIRQ(video->stat) && lyc == video->ly) {
video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT); video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
@ -115,6 +115,10 @@ int32_t GBVideoProcessEvents(struct GBVideo* video, int32_t cycles) {
break; break;
case 1: case 1:
++video->ly; ++video->ly;
video->stat = GBRegisterSTATSetLYC(video->stat, lyc == video->ly);
if (GBRegisterSTATIsLYCIRQ(video->stat) && lyc == video->ly) {
video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
}
if (video->ly >= GB_VIDEO_VERTICAL_TOTAL_PIXELS) { if (video->ly >= GB_VIDEO_VERTICAL_TOTAL_PIXELS) {
video->ly = 0; video->ly = 0;
video->renderer->drawScanline(video->renderer, video->ly); video->renderer->drawScanline(video->renderer, video->ly);