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Some extra ports in the dma range return values.

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Added a warning for illegal ports written to.


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@761
This commit is contained in:
Sjoerd van der Berg 2003-03-13 21:21:36 +00:00
parent 1e853d8dc6
commit f462528afb
1 changed files with 9 additions and 3 deletions
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12
src/hardware/dma.cpp
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@ -96,9 +96,13 @@ static Bit8u read_dma(Bit32u port) {
ret=cont->status_reg;
cont->status_reg&=0xf; /* Clear lower 4 bits on read */
break;
case 0x0a:
case 0x0e:
/* Seem to return 0 on a real controller */
ret=0x0;
break;
default:
LOG(LOG_ERROR,"DMA:Unhandled read from %d",port);
LOG(LOG_ERROR,"DMA:Unhandled read from %X",port);
}
return ret;
}
@ -162,7 +166,9 @@ static void write_dma(Bit32u port,Bit8u val) {
case 0x0c: /* Clear Flip/Flip */
cont->flipflop=true;
break;
};
default:
LOG(LOG_ERROR,"DMA:Unhandled write %X to %X",val,port);
};
};