format.c

PXA250上的XBOOT

/* 
 * $Id: format.c,v 1.1 2002/12/05 22:20:38 telka Exp $
 *
 * Copyright (C) 2001, 2002 ETC s.r.o.
 *
 * 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; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * Written by Marcel Telka <[e-mail]>, 2001, 2002.
 *
 */

#include <_windows.h>
#include <stdarg.h>
#include <nkintr.h>

#include "format.h"

static void OutputByte( BYTE c );
static void OutputNumHex( unsigned long n, long depth );
static void OutputNumDecimal( unsigned long n );
static void OutputString( const char *s );

void
EdbgOutputDebugString( const char *fmt, ... )
{
	char c;
	va_list vl;

	va_start( vl, fmt );

	while (*fmt) {
		c = *fmt++;
		switch (c) {
			case '%':
				c = *fmt++;
				switch (c) {
					case 'x':
						OutputNumHex( va_arg( vl, unsigned long ), 0 );
						break;
					case 'B':
						OutputNumHex( va_arg( vl, unsigned long ), 2 );
						break;
					case 'H':
						OutputNumHex( va_arg( vl, unsigned long ), 4 );
						break;
					case 'X':
						OutputNumHex( va_arg( vl, unsigned long ), 8 );
						break;
					case 'd':{
							long l;

							l = va_arg( vl, long );
							if (l < 0) {
								OutputByte( '-' );
								l = -l;
							}
							OutputNumDecimal( (unsigned long) l );
						}
						break;
					case 'u':
						OutputNumDecimal( va_arg( vl, unsigned long ) );
						break;
					case 's':
						OutputString( va_arg( vl, char * ) );
						break;
					case '%':
						OutputByte( '%' );
						break;
					case 'c':
						c = va_arg( vl, unsigned char );
						OutputByte( c );
						break;
					default:
						OutputByte( ' ' );
						break;
				}
				break;
			case '\n':
				OutputByte( '\r' );
			default:
				OutputByte( c );
		}
	}

	va_end( vl );
}

static void
OutputByte( BYTE c )
{
	OEMWriteDebugByte( c );
}

static void
OutputNumHex( unsigned long n, long depth )
{
	if (depth)
		depth--;

	if ((n & ~0xF) || depth) {
		OutputNumHex( n >> 4, depth );
		n &= 0xF;
	}

	if (n < 10)
		OutputByte( (BYTE) (n + '0') );
	else
		OutputByte( (BYTE) (n - 10 + 'A') );
}

static void
OutputNumDecimal( unsigned long n )
{
	if (n >= 10) {
		OutputNumDecimal( n / 10 );
		n %= 10;
	}
	OutputByte( (BYTE) (n + '0') );
}

static void
OutputString( const char *s )
{
	while (*s) {
		if (*s == '\n')
			OutputByte( '\r' );
		OutputByte( *s++ );
	}
}