mirror of https://github.com/acidanthera/audk.git
59 lines
1.4 KiB
ArmAsm
59 lines
1.4 KiB
ArmAsm
#------------------------------------------------------------------------------
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#
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# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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#------------------------------------------------------------------------------
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.text
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.align 2
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.globl ASM_PFX(__muldi3)
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ASM_PFX(__muldi3):
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stmfd sp!, {r4, r5, r6, r7, lr}
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add r7, sp, #12
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stmfd sp!, {r8, r10, r11}
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ldr r11, L4
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mov r4, r0, lsr #16
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and r8, r0, r11
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and ip, r2, r11
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mul lr, ip, r8
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mul ip, r4, ip
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sub sp, sp, #8
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add r10, ip, lr, lsr #16
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and ip, r10, r11
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and lr, lr, r11
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mov r6, r2, lsr #16
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str r4, [sp, #4]
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add r4, lr, ip, asl #16
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mul ip, r8, r6
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mov r5, r10, lsr #16
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add r10, ip, r4, lsr #16
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and ip, r10, r11
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and lr, r4, r11
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add r4, lr, ip, asl #16
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mul r0, r3, r0
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add ip, r5, r10, lsr #16
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ldr r5, [sp, #4]
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mla r0, r2, r1, r0
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mla r5, r6, r5, ip
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mov r10, r4
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add r11, r0, r5
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mov r1, r11
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mov r0, r4
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sub sp, r7, #24
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ldmfd sp!, {r8, r10, r11}
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ldmfd sp!, {r4, r5, r6, r7, pc}
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.p2align 2
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L5:
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.align 2
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L4:
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.long 65535
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