case 0xc003: IRQCount=IRQLatch; IRQa|=2; break;
case 0xe000: IRQa&=~1; IRQa|=V&1; X6502_IRQEnd(FCEU_IQEXT); break;
case 0xc002: X6502_IRQEnd(FCEU_IQEXT); break;
case 0xc003: IRQCount=IRQLatch; IRQa|=2; break;
case 0xe000: IRQa&=~1; IRQa|=V&1; X6502_IRQEnd(FCEU_IQEXT); break;
case 0xc002: X6502_IRQEnd(FCEU_IQEXT); break;