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VDCBUFI.C
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C/C++ Source or Header
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1993-08-10
|
581b
|
31 lines
/*
SG C Tools 1.2
(C) 1993 Steve Goldsmith
All Rights Reserved
Compiled with HI-TECH C 3.09 (CP/M-80).
*/
#include <stdlib.h>
#include <hitech.h>
#include <vdc.h>
/* alloc buffer and copy vdc mem into it */
uchar * memtobufvdc(ushort VidMem, ushort CopyLen)
{
register ushort I;
uchar *BufPtr;
BufPtr = (uchar *) malloc(CopyLen);
if (BufPtr != NULL)
{
outvdc(vdcUpdAddrHi,(uchar) (VidMem >> 8));
outvdc(vdcUpdAddrLo,(uchar) VidMem);
for(I = 0; I < CopyLen; I++)
BufPtr[I] = invdc(vdcCPUData);
}
return(BufPtr);
}