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/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
* This file is part of the Linux kernel, and is made available under
* the terms of the GNU General Public License version 2.
*
* ----------------------------------------------------------------------- */
/**
* @file
* @brief Very simple screen I/O for the initialization stage
*
* @todo Probably should add very simple serial I/O?
* @attention This is real mode code!
*/
#include <asm/segment.h>
#include "boot.h"
/* be aware of: */
THIS_IS_REALMODE_CODE
static void __bootcode putchar(int ch)
{
struct biosregs ireg;
if (ch == '\n')
putchar('\r'); /* \n -> \r\n */
initregs(&ireg);
ireg.bx = 0x0007;
ireg.cx = 0x0001;
ireg.ah = 0x0e;
ireg.al = ch;
intcall(0x10, &ireg, NULL);
}
void __bootcode boot_puts(char *str)
{
while (*str)
putchar(*str++);
}
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