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only recalculate GBA slot timing if necessary

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This commit is contained in:
RSDuck 2021-06-27 00:45:12 +02:00
parent dd2b86d026
commit dd53b01f76
1 changed files with 15 additions and 7 deletions
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8
src/NDS.cpp
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@ -3329,10 +3329,14 @@ void ARM9IOWrite16(u32 addr, u16 val)
case 0x040001BA: ROMSeed1[4] = val & 0x7F; return; case 0x040001BA: ROMSeed1[4] = val & 0x7F; return;
case 0x04000204: case 0x04000204:
{
u16 oldVal = ExMemCnt[0];
ExMemCnt[0] = val; ExMemCnt[0] = val;
ExMemCnt[1] = (ExMemCnt[1] & 0x007F) | (val & 0xFF80); ExMemCnt[1] = (ExMemCnt[1] & 0x007F) | (val & 0xFF80);
if ((oldVal ^ ExMemCnt[0]) & 0xFF)
SetGBASlotTimings(); SetGBASlotTimings();
return; return;
}
case 0x04000208: IME[0] = val & 0x1; UpdateIRQ(0); return; case 0x04000208: IME[0] = val & 0x1; UpdateIRQ(0); return;
case 0x04000210: IE[0] = (IE[0] & 0xFFFF0000) | val; UpdateIRQ(0); return; case 0x04000210: IE[0] = (IE[0] & 0xFFFF0000) | val; UpdateIRQ(0); return;
@ -4038,9 +4042,13 @@ void ARM7IOWrite16(u32 addr, u16 val)
return; return;
case 0x04000204: case 0x04000204:
{
u16 oldVal = ExMemCnt[1];
ExMemCnt[1] = (ExMemCnt[1] & 0xFF80) | (val & 0x007F); ExMemCnt[1] = (ExMemCnt[1] & 0xFF80) | (val & 0x007F);
if ((ExMemCnt[1] ^ oldVal) & 0xFF)
SetGBASlotTimings(); SetGBASlotTimings();
return; return;
}
case 0x04000206: case 0x04000206:
SetWifiWaitCnt(val); SetWifiWaitCnt(val);
return; return;