1fef058f4b
1. Remove .intel_syntax directives in GCC assembly files. All these assembly files have been updated to use the preferred syntax for GAS 2. Correct the incorrect comments for internal worker functions for SetMemXX() and ScanMemXX(). The Length parameter is actually the counter of 16-bit, 32-bit or 64-bit value. 3. Simplify the logic in ZeroMemoryWrapper.c for BaseMemoryLibOptPei instance to remove the conditional statement for zero length. This logic is already covered by worker function InternalMemZeroMem(). 4. Cleanup all the Wrapper C files in BaseMemoryLib instances. They are supposed to be shared by all these 8 BaseMemoryLib instances, but are out-of-sync after some maintenance. This patch re-syncs them and makes them exactly the same. 5. Cleanup MemLibInternal.h so that it is shared by 6 BaseMemoryLib instance except for PeiMemoryLib and UefiMemoryLib. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9041 6f19259b-4bc3-4df7-8a09-765794883524
73 lines
2.4 KiB
ArmAsm
73 lines
2.4 KiB
ArmAsm
#
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# ConvertAsm.py: Automatically generated from SetMem.asm
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#
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#------------------------------------------------------------------------------
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#
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# Copyright (c) 2006 - 2009, Intel Corporation
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# All rights reserved. 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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# Module Name:
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#
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# SetMem.S
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#
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# Abstract:
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#
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# SetMem function
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#
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# Notes:
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#
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#------------------------------------------------------------------------------
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#------------------------------------------------------------------------------
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# VOID *
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# EFIAPI
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# InternalMemSetMem (
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# IN VOID *Buffer,
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# IN UINTN Count,
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# IN UINT8 Value
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# )
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#------------------------------------------------------------------------------
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ASM_GLOBAL ASM_PFX(InternalMemSetMem)
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ASM_PFX(InternalMemSetMem):
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pushq %rdi
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movq %rcx, %rdi # rdi <- Buffer
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movb %r8b, %al # al <- Value
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movq %rdi, %r9 # r9 <- Buffer as return value
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xorq %rcx, %rcx
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subq %rdi, %rcx
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andq $15, %rcx # rcx + rdi aligns on 16-byte boundary
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jz L0
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cmpq %rdx, %rcx
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cmova %rdx, %rcx
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subq %rcx, %rdx
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rep stosb
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L0:
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movq %rdx, %rcx
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andq $15, %rdx
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shrq $4, %rcx
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jz L_SetBytes
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movb %al, %ah # ax <- Value repeats twice
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movdqa %xmm0, 0x10(%rsp) # save xmm0
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movd %eax, %xmm0 # xmm0[0..16] <- Value repeats twice
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pshuflw $0, %xmm0, %xmm0 # xmm0[0..63] <- Value repeats 8 times
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movlhps %xmm0, %xmm0 # xmm0 <- Value repeats 16 times
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L1:
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movntdq %xmm0, (%rdi) # rdi should be 16-byte aligned
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add $16, %rdi
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loop L1
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mfence
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movdqa 0x10(%rsp), %xmm0 # restore xmm0
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L_SetBytes:
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movl %edx, %ecx # high 32 bits of rcx are always zero
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rep stosb
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movq %r9, %rax # rax <- Return value
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popq %rdi
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ret
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