static DECLFW(RAMBO1_write)
{
switch(A&0xF001)
{
case 0xa000: mir=V&1;
// if(!nomirror)
setmirror(mir^1);
break;
case 0x8000: cmd = V;
break;
case 0x8001: if((cmd&0xF)<10)
DRegs[cmd&0xF]=V;
else if((cmd&0xF)==0xF)
DRegs[10]=V;
Synco();
break;
case 0xc000: IRQLatch=V;
if(rmode==1)
IRQCount=IRQLatch;
break;
case 0xc001: rmode=1;
IRQCount=IRQLatch;
IRQmode=V&1;
break;
case 0xE000: IRQa=0;
X6502_IRQEnd(FCEU_IQEXT);
if(rmode==1)
IRQCount=IRQLatch;
break;
case 0xE001: IRQa=1;
if(rmode==1)
IRQCount=IRQLatch;
break;
}
}
static int StateAction(StateMem *sm, int load, int data_only)
{
SFORMAT StateRegs[]={
{&cmd, 1, "CMD"},
{&mir, 1, "MIR"},
{&rmode, 1, "RMOD"},
{&IRQmode, 1, "IRQM"},
{&IRQCount, 1, "IRQC"},
{&IRQa, 1, "IRQA"},
{&IRQLatch, 1, "IRQL"},
{DRegs, 11, "DREG"},
SFEND
};
int ret = MDFNSS_StateAction(sm, load, data_only, StateRegs, "MAPR");
if(load)
{
Synco();
if(!nomirror)
setmirror(mir^1);
}
return(ret);
}
void Mapper51_init(void)
{
SetWriteHandler(0x6000,0xFFFF,Write);
SetReadHandler(0x6000,0xFFFF,CartBR);
mapbyte1[0]=1;
mapbyte1[1]=0;
Synco();
}
static DECLFW(Write)
{
if(A&0x8000) mapbyte1[1]=V&0xF;
else mapbyte1[0]=(mapbyte1[0]&2)|((V>>1)&1);
if(A&0x4000) mapbyte1[0]=(mapbyte1[0]&1)|((V>>3)&2);
Synco();
}
static void Power(CartInfo *info)
{
int x;
for(x=0;x<11;x++)
DRegs[x]=~0;
cmd=0;
mir=0;
if(!nomirror)
setmirror(1);
Synco();
setprg8(0xe000, 0xFF);
}
static void RAMBO1_init(void)
{
int x;
for(x=0;x<11;x++)
DRegs[x]=~0;
cmd=mir=0;
// if(!nomirror)
setmirror(1);
Synco();
GameHBIRQHook=RAMBO1_hb;
MapIRQHook=RAMBO1_IRQHook;
GameStateRestore=RAMBO1_Restore;
SetWriteHandler(0x8000,0xffff,RAMBO1_write);
AddExState(Rambo_StateRegs, ~0, 0, 0);
}
static DECLFW(RAMBO1_write)
{
//if(A>=0xC000 && A<=0xFFFF) printf("$%04x:$%02x, %d, %d\n",A,V,scanline,timestamp);
switch(A&0xF001)
{
case 0xa000:mir=V&1;
if(!nomirror)
setmirror(mir^1);
break;
case 0x8000:cmd = V;
break;
case 0x8001:
if((cmd&0xF)<10)
DRegs[cmd&0xF]=V;
else if((cmd&0xF)==0xF)
DRegs[10]=V;
Synco();
break;
case 0xc000:IRQLatch=V;
if(rmode==1)
{
IRQCount=IRQLatch;
}
break;
case 0xc001:rmode=1;
IRQCount=IRQLatch;
IRQmode=V&1;
break;
case 0xE000:IRQa=0;X6502_IRQEnd(MDFN_IQEXT);
if(rmode==1)
{IRQCount=IRQLatch;}
break;
case 0xE001:IRQa=1;
if(rmode==1)
{IRQCount=IRQLatch;}
break;
}
}
static void RAMBO1_Restore(int version)
{
Synco();
// if(!nomirror)
setmirror(mir^1);
}
