Michael D Kinney 9344f09215 MdePkg: Replace BSD License with BSD+Patent License
https://bugzilla.tianocore.org/show_bug.cgi?id=1373

Replace BSD 2-Clause License with BSD+Patent License.  This change is
based on the following emails:

  https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html
  https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html

RFCs with detailed process for the license change:

  V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html
  V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html
  V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2019-04-09 10:58:13 -07:00

57 lines
1.5 KiB
NASM

;------------------------------------------------------------------------------
;
; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
; Module Name:
;
; SetMem.Asm
;
; Abstract:
;
; SetMem function
;
; Notes:
;
;------------------------------------------------------------------------------
DEFAULT REL
SECTION .text
;------------------------------------------------------------------------------
; VOID *
; EFIAPI
; InternalMemSetMem (
; IN VOID *Buffer,
; IN UINTN Count,
; IN UINT8 Value
; )
;------------------------------------------------------------------------------
global ASM_PFX(InternalMemSetMem)
ASM_PFX(InternalMemSetMem):
push rdi
push rbx
push rcx ; push Buffer
mov rax, r8 ; rax = Value
and rax, 0xff ; rax = lower 8 bits of r8, upper 56 bits are 0
mov ah, al ; ah = al
mov bx, ax ; bx = ax
shl rax, 0x10 ; rax = ax << 16
mov ax, bx ; ax = bx
mov rbx, rax ; ebx = eax
shl rax, 0x20 ; rax = rax << 32
or rax, rbx ; eax = ebx
mov rdi, rcx ; rdi = Buffer
mov rcx, rdx ; rcx = Count
shr rcx, 3 ; rcx = rcx / 8
cld
rep stosq
mov rcx, rdx ; rcx = rdx
and rcx, 7 ; rcx = rcx & 7
rep stosb
pop rax ; rax = Buffer
pop rbx
pop rdi
ret