| ;------------------------------------------------------------------------------ | |
| ; | |
| ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR> | |
| ; SPDX-License-Identifier: BSD-2-Clause-Patent | |
| ; | |
| ; Module Name: | |
| ; | |
| ; SetMem32.nasm | |
| ; | |
| ; Abstract: | |
| ; | |
| ; SetMem32 function | |
| ; | |
| ; Notes: | |
| ; | |
| ;------------------------------------------------------------------------------ | |
| SECTION .text | |
| ;------------------------------------------------------------------------------ | |
| ; VOID * | |
| ; EFIAPI | |
| ; InternalMemSetMem32 ( | |
| ; IN VOID *Buffer, | |
| ; IN UINTN Count, | |
| ; IN UINT32 Value | |
| ; ); | |
| ;------------------------------------------------------------------------------ | |
| global ASM_PFX(InternalMemSetMem32) | |
| ASM_PFX(InternalMemSetMem32): | |
| mov eax, [esp + 4] ; eax <- Buffer as return value | |
| mov ecx, [esp + 8] ; ecx <- Count | |
| movd mm0, dword [esp + 12] ; mm0 <- Value | |
| shr ecx, 1 ; ecx <- number of qwords to set | |
| mov edx, eax ; edx <- Buffer | |
| jz @SetDwords | |
| movq mm1, mm0 | |
| psllq mm1, 32 | |
| por mm0, mm1 | |
| .0: | |
| movq qword [edx], mm0 | |
| lea edx, [edx + 8] ; use "lea" to avoid change in flags | |
| loop .0 | |
| @SetDwords: | |
| jnc .1 | |
| movd dword [edx], mm0 | |
| .1: | |
| ret | |