source: buchla-68k/orig/BUCHLA/RCTOXY.C

/*
   =============================================================================
        rctoxy.c -- print a row,column to x,y chart
        Version 1 -- 1988-02-01 -- D.N. Lynx Crowe
   =============================================================================
*/

#include "stddefs.h"
#include "stdio.h"

main()
{
        register short rc, xl, xr, yt, yb;

        printf("rc   xl ..  xr    yt ..  yb\n\n");

        for (rc = 0; rc < 25; rc++) {

                xl = rc << 3;
                xr = xl + 7;

                yt = rc * 14;
                yb = yt + 13;

                printf("%2d  %3d .. %3d   %3d .. %3d\n", rc, xl, xr, yt, yb);
        }

        for (; rc < 64; rc++) {

                xl = rc << 3;
                xr = xl + 7;

                printf("%2d  %3d .. %3d\n", rc, xl, xr);
        }
}