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GBA SIO: Fix writing to RCNT

This commit is contained in:
Jeffrey Pfau 2015-02-28 14:52:46 -08:00
parent 8112ffdabc
commit 9b8b56d701
1 changed files with 2 additions and 1 deletions
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3
src/gba/sio.c
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@ -122,7 +122,8 @@ void GBASIOSetDriver(struct GBASIO* sio, struct GBASIODriver* driver, enum GBASI
} }
void GBASIOWriteRCNT(struct GBASIO* sio, uint16_t value) { void GBASIOWriteRCNT(struct GBASIO* sio, uint16_t value) {
sio->rcnt = value; sio->rcnt &= 0xF;
sio->rcnt |= value & ~0xF;
_switchMode(sio); _switchMode(sio);
if (sio->activeDriver && sio->activeDriver->writeRegister) { if (sio->activeDriver && sio->activeDriver->writeRegister) {
sio->activeDriver->writeRegister(sio->activeDriver, REG_RCNT, value); sio->activeDriver->writeRegister(sio->activeDriver, REG_RCNT, value);