mirror of https://github.com/acidanthera/audk.git
58 lines
1.5 KiB
ArmAsm
58 lines
1.5 KiB
ArmAsm
#------------------------------------------------------------------------------
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#
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# Copyright (c) 2008 - 2010, 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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\s\s.text
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\s\s.align 2
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\s\sGCC_ASM_EXPORT(__clzsi2)
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ASM_PFX(__clzsi2):
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\s\s@ frame_needed = 1, uses_anonymous_args = 0
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\s\sstmfd\s\ssp!, {r7, lr}
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\s\sadd\s\sr7, sp, #0
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\s\smovs\s\sr3, r0, lsr #16
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\s\smovne\s\sr3, #16
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\s\smoveq\s\sr3, #0
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\s\smovne\s\sr9, #0
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\s\smoveq\s\sr9, #16
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\s\smov\s\sr3, r0, lsr r3
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\s\stst\s\sr3, #65280
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\s\smovne\s\sr0, #8
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\s\smoveq\s\sr0, #0
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\s\smovne\s\slr, #0
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\s\smoveq\s\slr, #8
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\s\smov\s\sr3, r3, lsr r0
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\s\stst\s\sr3, #240
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\s\smovne\s\sr0, #4
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\s\smoveq\s\sr0, #0
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\s\smovne\s\sip, #0
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\s\smoveq\s\sip, #4
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\s\smov\s\sr3, r3, lsr r0
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\s\stst\s\sr3, #12
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\s\smovne\s\sr0, #2
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\s\smoveq\s\sr0, #0
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\s\smovne\s\sr1, #0
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\s\smoveq\s\sr1, #2
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\s\smov\s\sr2, r3, lsr r0
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\s\sadd\s\sr3, lr, r9
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\s\sadd\s\sr0, r3, ip
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\s\sadd\s\sr1, r0, r1
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\s\smov\s\sr0, r2, lsr #1
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\s\seor\s\sr0, r0, #1
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\s\sands\s\sr0, r0, #1
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\s\smvnne\s\sr0, #0
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\s\srsb\s\sr3, r2, #2
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\s\sand\s\sr0, r0, r3
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\s\sadd\s\sr0, r1, r0
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\s\sldmfd\s\ssp!, {r7, pc}
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