LXR syslinux/memdump/conio.c

   1/* ----------------------------------------------------------------------- *
   2 *
   3 *   Copyright 2001-2008 H. Peter Anvin - All Rights Reserved
   4 *
   5 *   This program is free software; you can redistribute it and/or modify
   6 *   it under the terms of the GNU General Public License as published by
   7 *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
   8 *   Boston MA 02111-1307, USA; either version 2 of the License, or
   9 *   (at your option) any later version; incorporated herein by reference.
  10 *
  11 * ----------------------------------------------------------------------- */
  12
  13/*
  14 * conio.c
  15 *
  16 * Output to the screen
  17 */
  18
  19#include <stdarg.h>
  20#include "mystuff.h"
  21
  22int putchar(int ch)
  23{
  24    if (ch == '\n')
  25        putchar('\r');
  26asm("movb $0x02,%%ah ; int $0x21": :"d"(ch));
  27    return ch;
  28}
  29
  30/* Note: doesn't put '\n' like the stdc version does */
  31int puts(const char *s)
  32{
  33    int count = 0;
  34
  35    while (*s) {
  36        putchar(*s);
  37        count++;
  38        s++;
  39    }
  40
  41    return count;
  42}
  43