#include <stdio.h>
#include <math.h> 
#define MINLINEAR -8159
#define MAXLINEAR 8159

extern int UlawToLinear(int in);
extern int LinearToUlaw(int x);

void main()
{
  int i, j, linearSum;
  int pcmINX, pcmINY;

  for (pcmINY=0; pcmINY<=255; pcmINY++) {  /* For all Y samples... */
    for (i=0; i<=15; i++) {  /* Construct output file in rows of 16. */
      printf("%04x:", pcmINY*256 + i*16);
      for (j=0; j<=15; j++) {  /* For all X samples... */
        pcmINX = i*16 + j;
        linearSum = UlawToLinear(pcmINX) + UlawToLinear(pcmINY);
        /* The next two lines perform "clipping" on overflow. */
        if (linearSum < MINLINEAR) linearSum = MINLINEAR;
        if (linearSum > MAXLINEAR) linearSum = MAXLINEAR;
        printf(" %02x", LinearToUlaw(linearSum));
      }
      printf("\n");
    }
  }
}