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49 lines
995 B
C
49 lines
995 B
C
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#include "mapinc.h"
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static DECLFW(Mapper182_write)
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{
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switch(A&0xf003)
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{
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case 0xe003:IRQCount=V;IRQa=1;X6502_IRQEnd(FCEU_IQEXT);break;
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case 0x8001:MIRROR_SET(V&1);break;
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case 0xA000:mapbyte1[0]=V;break;
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case 0xC000:
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switch(mapbyte1[0]&7)
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{
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case 0:VROM_BANK2(0x0000,V>>1);break;
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case 1:VROM_BANK1(0x1400,V);break;
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case 2:VROM_BANK2(0x0800,V>>1);break;
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case 3:VROM_BANK1(0x1c00,V);break;
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case 4:ROM_BANK8(0x8000,V);break;
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case 5:ROM_BANK8(0xA000,V);break;
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case 6:VROM_BANK1(0x1000,V);break;
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case 7:VROM_BANK1(0x1800,V);break;
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}
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break;
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}
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}
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void blop(void)
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{
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if(IRQa)
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{
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if(IRQCount)
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{
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IRQCount--;
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if(!IRQCount)
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{
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IRQa=0;
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X6502_IRQBegin(FCEU_IQEXT);
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}
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}
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}
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}
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void Mapper182_init(void)
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{
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SetWriteHandler(0x8000,0xFFFF,Mapper182_write);
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GameHBIRQHook=blop;
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}
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