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Provides a token something where DMA should be.

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This commit is contained in:
Thomas Harte 2019-10-10 21:04:41 -04:00
parent d7ce2c26e8
commit 52e5296544
1 changed files with 13 additions and 0 deletions
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13
Machines/AtariST/AtariST.cpp
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@ -293,6 +293,19 @@ class ConcreteMachine:
} }
} }
} break; } break;
// DMA.
case 0x7fc302: case 0x7fc303: case 0x7fc304: case 0x7fc305: case 0x7fc306:
if(cycle.operation & Microcycle::Read) {
const uint8_t value = 0;
if(cycle.operation & Microcycle::SelectByte) {
cycle.value->halves.low = value;
} else {
cycle.value->halves.high = value;
cycle.value->halves.low = 0xff;
}
}
break;
} }
return HalfCycles(0); return HalfCycles(0);
} }