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/******************************************************************************
* Copyright (c) 2004, 2011 IBM Corporation
* All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Contributors:
* IBM Corporation - initial implementation
*****************************************************************************/
#include <macros.h>
#include <cpu.h>
.text
/****************************************************************************
* prints one character to serial console
*
* Input:
* R3 - character
*
* Returns: -
*
* Modifies Registers:
* R3, R4, R5, R6, R7
****************************************************************************/
ENTRY(io_putchar)
sldi r6,r3,(24+32)
li r3,0x58
li r4,0
li r5,1
.long 0x44000022
blr
ENTRY(io_getchar)
mr r10,r3
li r3,0x54
li r4,0
.long 0x44000022
mr. r3,r4
beq 1f
srdi r3,r5,(24+32)
stb r3,0(r10)
1: blr
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