libgloss/putnum.c

   1 /* putnum.c -- put a hex number on the output device.
   2  *
   3  * Copyright (c) 1995 Cygnus Support
   4  *
   5  * The authors hereby grant permission to use, copy, modify, distribute,
   6  * and license this software and its documentation for any purpose, provided
   7  * that existing copyright notices are retained in all copies and that this
   8  * notice is included verbatim in any distributions. No written agreement,
   9  * license, or royalty fee is required for any of the authorized uses.
  10  * Modifications to this software may be copyrighted by their authors
  11  * and need not follow the licensing terms described here, provided that
  12  * the new terms are clearly indicated on the first page of each file where
  13  * they apply.
  14  */
  15 #include "glue.h"
  16
  17 extern void print (char *ptr);
  18
  19 /*
  20  * putnum -- print a 32 bit number in hex
  21  */
  22 void
  23 putnum (unsigned int num)
  24 {
  25   char  buf[9];
  26   int   cnt;
  27   char  *ptr;
  28   int   digit;
  29
  30   ptr = buf;
  31   for (cnt = 7 ; cnt >= 0 ; cnt--) {
  32     digit = (num >> (cnt * 4)) & 0xf;
  33
  34     if (digit <= 9)
  35       *ptr++ = (char) ('0' + digit);
  36     else
  37       *ptr++ = (char) ('a' - 10 + digit);
  38   }
  39
  40   *ptr = (char) 0;
  41   print (buf);
  42 }