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#ident "$Id: conio.c,v 1.4 2005/01/03 08:23:16 hpa Exp $"
/* ----------------------------------------------------------------------- *
*
* Copyright 2001-2003 H. Peter Anvin - All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, Inc., 53 Temple Place Ste 330,
* Boston MA 02111-1307, USA; either version 2 of the License, or
* (at your option) any later version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
/*
* conio.c
*
* Output to the screen
*/
#include <com32.h>
#include <stdarg.h>
#define NULL ((void *)0)
static inline void memset(void *buf, int ch, unsigned int len)
{
asm volatile("cld; rep; stosb"
: "+D" (buf), "+c" (len) : "a" (ch) : "memory");
}
int putchar(int ch)
{
com32sys_t regs;
memset(®s, 0, sizeof regs);
if ( ch == '\n' ) {
/* \n -> \r\n */
putchar('\r');
}
regs.eax.b[1] = 0x02;
regs.edx.b[0] = ch;
__com32.cs_intcall(0x21, ®s, NULL);
return ch;
}
/* Note: doesn't put '\n' like the stdc version does */
int puts(const char *s)
{
int count = 0;
while ( *s ) {
putchar(*s);
count++;
s++;
}
return count;
}
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