audk/ArmPkg/Library/CompilerIntrinsicsLib/Arm/muldi3.S

#------------------------------------------------------------------------------ 
#
# Copyright (c) 2008-2009 Apple Inc. All rights reserved.
#
# All rights reserved. This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution.  The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#------------------------------------------------------------------------------

	.text
	.align 2
	.globl ASM_PFX(__muldi3)
	
ASM_PFX(__muldi3):
	stmfd	sp!, {r4, r5, r6, r7, lr}
	add	r7, sp, #12
	stmfd	sp!, {r8, r10, r11}
	ldr	r11, L4
	mov	r4, r0, lsr #16
	and	r8, r0, r11
	and	ip, r2, r11
	mul	lr, ip, r8
	mul	ip, r4, ip
	sub	sp, sp, #8
	add	r10, ip, lr, lsr #16
	and	ip, r10, r11
	and	lr, lr, r11
	mov	r6, r2, lsr #16
	str	r4, [sp, #4]
	add	r4, lr, ip, asl #16
	mul	ip, r8, r6
	mov	r5, r10, lsr #16
	add	r10, ip, r4, lsr #16
	and	ip, r10, r11
	and	lr, r4, r11
	add	r4, lr, ip, asl #16
	mul	r0, r3, r0
	add	ip, r5, r10, lsr #16
	ldr	r5, [sp, #4]
	mla	r0, r2, r1, r0
	mla	r5, r6, r5, ip
	mov	r10, r4
	add	r11, r0, r5
	mov	r1, r11
	mov	r0, r4
	sub	sp, r7, #24
	ldmfd	sp!, {r8, r10, r11}
	ldmfd	sp!, {r4, r5, r6, r7, pc}
	.p2align 2
L5:
	.align 2
L4:
	.long	65535