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VDCPSTR.C
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C/C++ Source or Header
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1993-08-10
|
844b
|
35 lines
/*
SG C Tools 1.2
(C) 1993 Steve Goldsmith
All Rights Reserved
Compiled with HI-TECH C 3.09 (CP/M-80).
*/
#include <string.h>
#include <hitech.h>
#include <vdc.h>
extern uchar vdcScrHorz;
extern ushort vdcDispMem;
/* fast vdc string print given x and y offset in current page */
void printstrvdc(uchar X, uchar Y, uchar Attr, char *TextStr)
{
register uchar TextLen;
ushort DispOfs;
TextLen = strlen(TextStr);
if(TextLen > 0)
{
DispOfs = Y*vdcScrHorz+vdcDispMem+X; /* calc disp mem offset */
fillattrvdc(X,Y,TextLen,Attr); /* use block fill for attrs */
outvdc(vdcUpdAddrHi,(uchar) (DispOfs >> 8));
outvdc(vdcUpdAddrLo,(uchar) DispOfs); /* set addr of first char */
for(X = 0; X < TextLen; X++) /* send str to vdc disp mem */
outvdc(vdcCPUData,TextStr[X]);
}
}