/*
 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
 /*
 * Copyright (c) 1997-1998 Apple Computer, Inc.
 *
 *
 * HISTORY
 *
 * sdouglas  22 Oct 97 - first checked in from DriverServices
 * sdouglas  28 Jul 98 - start IOKit
 */

#include <architecture/ppc/asm_help.h>

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
; ENTRY		functionName
;
; Assembly directives to begin an exported function.
;
; Takes: functionName - name of the exported function
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

.macro ENTRY
	.text
	.align		2
	.globl		$0
$0:
.endmacro

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

/*

OSStatus SynchronizeIO( void )

*/

	ENTRY	__eSynchronizeIO

	li	r0,	0
	eieio
	li	r3,	0
	blr

/*

OSStatus CallTVector_NoRecover(
	    void * p1, void * p2, void * p3, void * p4, void * p5, void * p6,	// r3-8
	    LogicalAddress entry )						// r9

*/

#define PARAM_SIZE	24
#define FM_SIZE		64
#define FM_LR_SAVE	8
#define FM_TOC_SAVE	20

	ENTRY	_CallTVector

#if 1
	stw	r2,	FM_TOC_SAVE(r1)
    	lwz	r0,	0(r9)
	lwz	r2,	4(r9)
	mtspr	ctr,	r0
	bctr

#else
	mflr	r0
	stw	r0,	FM_LR_SAVE(r1)
	stw	r2,	FM_TOC_SAVE(r1)

	stwu	r1,	-(PARAM_SIZE+FM_SIZE)(r1)
	
	lwz	r2,	4(r9)
	lwz	r0,	0(r9)
	mtspr	lr,	r0
	mfspr	r12,	lr
	blrl

	addi	r1,	r1,(PARAM_SIZE+FM_SIZE)
	lwz	r2,	FM_TOC_SAVE(r1)
	lwz	r0,	FM_LR_SAVE(r1)
	mtlr	r0
	blr
#endif

/*
 * Seemingly unused references from cpp statically initialized objects.
 */

.globl .constructors_used
.constructors_used = 0
.globl .destructors_used
.destructors_used = 0