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GB Video: Changing LYC while LCDC off doesn't affect STAT (fixes #1224)

This commit is contained in:
Vicki Pfau 2018-11-23 16:29:52 -05:00
parent 741ac61baa
commit 38bad71e11
2 changed files with 7 additions and 4 deletions
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1
CHANGES
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@ -138,6 +138,7 @@ Bugfixes:
- Core: Remember to deinit proxy ring FIFO
- GBA Savedata: Fix EEPROM writing codepath when savetype is not EEPROM
- Core: Reroot timing list when (de)scheduling
- GB Video: Changing LYC while LCDC off doesn't affect STAT (fixes mgba.io/i/1224)
Misc:
- mGUI: Add SGB border configuration option
- mGUI: Add support for different settings types

10
src/gb/video.c
View File

@ -449,10 +449,12 @@ void GBVideoWriteSTAT(struct GBVideo* video, GBRegisterSTAT value) {
void GBVideoWriteLYC(struct GBVideo* video, uint8_t value) {
GBRegisterSTAT oldStat = video->stat;
video->stat = GBRegisterSTATSetLYC(video->stat, value == video->ly);
if (!_statIRQAsserted(video, oldStat) && _statIRQAsserted(video, video->stat)) {
video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
GBUpdateIRQs(video->p);
if (GBRegisterLCDCIsEnable(video->p->memory.io[REG_LCDC])) {
video->stat = GBRegisterSTATSetLYC(video->stat, value == video->ly);
if (!_statIRQAsserted(video, oldStat) && _statIRQAsserted(video, video->stat)) {
video->p->memory.io[REG_IF] |= (1 << GB_IRQ_LCDSTAT);
GBUpdateIRQs(video->p);
}
}
video->p->memory.io[REG_STAT] = video->stat;
}