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| ;------------------------------------------------------------------------------
| ;
| ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
| ; SPDX-License-Identifier: BSD-2-Clause-Patent
| ;
| ; Module Name:
| ;
| ; SetMem64.nasm
| ;
| ; Abstract:
| ;
| ; SetMem64 function
| ;
| ; Notes:
| ;
| ;------------------------------------------------------------------------------
|
| SECTION .text
|
| ;------------------------------------------------------------------------------
| ; VOID *
| ; EFIAPI
| ; InternalMemSetMem64 (
| ; IN VOID *Buffer,
| ; IN UINTN Count,
| ; IN UINT64 Value
| ; )
| ;------------------------------------------------------------------------------
| global ASM_PFX(InternalMemSetMem64)
| ASM_PFX(InternalMemSetMem64):
| mov eax, [esp + 4] ; eax <- Buffer
| mov ecx, [esp + 8] ; ecx <- Count
| test al, 8
| mov edx, eax
| movq xmm0, qword [esp + 12]
| jz .0
| movq qword [edx], xmm0
| add edx, 8
| dec ecx
| .0:
| push ebx
| mov ebx, ecx
| and ebx, 7
| shr ecx, 3
| jz @SetQwords
| movlhps xmm0, xmm0
| .1:
| movntdq [edx], xmm0
| movntdq [edx + 16], xmm0
| movntdq [edx + 32], xmm0
| movntdq [edx + 48], xmm0
| lea edx, [edx + 64]
| loop .1
| mfence
| @SetQwords:
| test ebx, ebx
| jz .3
| mov ecx, ebx
| .2
| movq qword [edx], xmm0
| lea edx, [edx + 8]
| loop .2
| .3:
| pop ebx
| ret
|
|
|
