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fix bug that could cause nested IRQs.

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fix potential bug in MSR.
This commit is contained in:
StapleButter
2017-01-18 03:11:07 +01:00
parent 7f5ee5c00e
commit bff3a92cc0
3 changed files with 9 additions and 17 deletions
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15
ARM.cpp
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@ -210,18 +210,9 @@ void ARM::UpdateMode(u32 oldmode, u32 newmode)
void ARM::TriggerIRQ()
{
if ((CPSR & 0x80) && (!Halted))
if (CPSR & 0x80)
return;
/*if (Num==1)
{
printf("ARM7 IRQ %08X %08X\n", R[15], R_IRQ[0]);
if (NDS::Timers[5].Event)
{
printf("Timer1 %d %d\n", NDS::Timers[5].Counter, NDS::Timers[5].Event->Delay);
}
}*/
u32 oldcpsr = CPSR;
CPSR &= ~0xFF;
CPSR |= 0xD2;
@ -298,9 +289,7 @@ s32 ARM::Execute(s32 cycles)
TriggerIRQ();
}
//if (R[15] >= 0x3800170+4 && R[15]<=0x0380017A+4)
// printf("!! %08X: %08X | %08X %08X\n", R[15]-4, R[13], R[0], R[1]);
// temp. debug cruft
addr = R[15] - (CPSR&0x20 ? 4:8);
cpsr = CPSR;
}