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Hooked up internal SCSP DSP registers, Kyuutenkai needs them for booting

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This commit is contained in:
Angelo Salese 2013-02-20 16:30:04 +00:00
parent 2d053281b2
commit 72b9901651
1 changed files with 32 additions and 1 deletions
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33
src/emu/sound/scsp.c
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@ -1016,7 +1016,38 @@ static unsigned short SCSP_r16(scsp_state *scsp, address_space &space, unsigned
v= *((unsigned short *) (scsp->DSP.MADRS+(addr-0x780)/2));
else if(addr<0xC00)
v= *((unsigned short *) (scsp->DSP.MPRO+(addr-0x800)/2));
else if(addr<0xE00)
{
if(addr & 2)
v= scsp->DSP.TEMP[(addr >> 2) & 0x7f] & 0xffff;
else
v= scsp->DSP.TEMP[(addr >> 2) & 0x7f] >> 16;
}
else if(addr<0xE80)
{
if(addr & 2)
v= scsp->DSP.MEMS[(addr >> 2) & 0x1f] & 0xffff;
else
v= scsp->DSP.MEMS[(addr >> 2) & 0x1f] >> 16;
}
else if(addr<0xEC0)
{
if(addr & 2)
v= scsp->DSP.MIXS[(addr >> 2) & 0xf] & 0xffff;
else
v= scsp->DSP.MIXS[(addr >> 2) & 0xf] >> 16;
}
else if(addr<0xEE0)
v= *((unsigned short *) (scsp->DSP.EFREG+(addr-0xec0)/2));
else
{
/* TODO: Kyuutenkai reads from 0xee0/0xee2, it's an undocumented "DSP internal buffer" register ... */
logerror("SCSP: Reading from unmapped register %08x\n",addr);
if(addr == 0xee0)
v= scsp->DSP.TEMP[0] >> 16;
if(addr == 0xee2)
v= scsp->DSP.TEMP[0] & 0xffff;
}
}
return v;
}