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FCTFD.C
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C/C++ Source or Header
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1993-03-30
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583b
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36 lines
#include <dos.h>
#include <stdio.h>
main()
{
struct REGPACK sregs;
int y,x,numbytes,dx;
char ch;
union REGS regs;
/*struct SREGS sregs;*/
printf("\nEnter DX : ");
scanf("%d",&dx); while(kbhit()) getch();
regs.h.ah = 0xfd;
printf("\nA) RX count B) Tx count ");
ch = toupper(getch());
if(ch == 'A') ch = 2;
else
if(ch == 'B') ch = 1;
else ch = 0;
regs.h.al = ch;
regs.x.dx = dx;
printf("\nCall - AH : %02X AL : %02X",regs.h.ah, regs.h.al);
int86(0x14,®s,®s);
printf("\nReturn - CX : %04X ",regs.x.cx);
}