#include <stdio.h>
#include <ctype.h>
#include <conio.h>

union CODE
{
    struct
    {
        unsigned char ascii;
        unsigned char scan;
    } c;
    unsigned int i;
};


int main()
{
    clrscr();
    CODE code;
    printf("Press key to get scan and ascii codes. Press ESC to exit\n\n");
    do
    {
        asm mov ah, 0x10
        asm int 0x16
        asm mov code.i, ax
        printf("scan code  : %x\nascii code : %x\n\n", code.c.scan, code.c.ascii);
    }
    while (code.c.ascii != 27);

    return 0;
}