[LinksOS CVS Commit]linksos/hal/x86 kstdio.c,NONE,1.1

[<ke...@to...>]

Update of /cvsroot/linksos/linksos/hal/x86
In directory router-internal.tossell.net:/tmp/cvs-serv16785

Added Files:
	kstdio.c 
Log Message:
Title: kernel stdio
Changes: Moved a copy of kstdio.c (kprintf so far) to the x86 hal dir.

Effects: Portability dude
a=kennyt


--- NEW FILE: kstdio.c ---
/****************************************************************************\
**	filename:	kstdio.c													**
**	creation date:	11/29/2002, 0109 MST									**
**	author:	Charles Banas													**
**  version: 0.01															**
******************************************************************************
**	revision history:														**
**		11/29/2002 - 0109 MST - Charles										**
**			added kprintf().  let's see if this baby links, eh.				**
\****************************************************************************/

#include "include/kstdio.h"

typedef	unsigned char	u_char;	/*	this needs to be moved to a "types"
									header file. */

void kprintf(char* text)
	/*	kernel-mode printf:  to be used ONLY within the kernel and ONLY in
		text-mode.  any other mode can be disastrous, as this code does not
		check what mode it is in.  optimization is pointless and makes no
		sense anyway.
		version 0.02 will have extended parameters. :)
	 */
{
	/*	write 'text' to screen. */
	static	char*	screen	= (char*)0xB8000;
			int		j;
	static	int		i		= 0;
	static	u_char	prev;

	for(j=0;text[j]!=0;++i,j++) {	/* don't be scared.  it's kosher. :) */
		if (((text[j]==0xa) || (text[j]==0xd)) && ((prev==0xa) || (prev==0xd))) {
			continue;
			prev = text[j];
		}
		else if ((text[j]==0xa) || (text[j]==0xd)) {
			i = i + (0xa0);
			prev = text[j];
			continue;
		}
		prev = text[j];
		screen[i*2] = text[j];
		screen[i*2+1] = 7;
	}
}