4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# http://opensource.org/licenses/bsd-license.php.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Module Name:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# SetMem.S
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Abstract:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# SetMem function
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# Notes:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# VOID *
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# EFIAPI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# InternalMemSetMem (
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN VOID *Buffer,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN UINTN Count,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# IN UINT8 Value
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync# )
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync#------------------------------------------------------------------------------
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncASM_GLOBAL ASM_PFX(InternalMemSetMem)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncASM_PFX(InternalMemSetMem):
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pushq %rdi
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pushq %rbx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pushq %rcx # push Buffer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movq %r8, %rax # rax = Value
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync andq $0xff, %rax # rax = lower 8 bits of r8, upper 56 bits are 0
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movb %al, %ah # ah = al
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movw %ax, %bx # bx = ax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync shlq $0x10, %rax # rax = ax << 16
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movw %bx, %ax # ax = bx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movq %rax, %rbx # ebx = eax
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync shlq $0x20, %rax # rax = rax << 32
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync orq %rbx, %rax # eax = ebx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movq %rcx, %rdi # rdi = Buffer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movq %rdx, %rcx # rcx = Count
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync shrq $3, %rcx # rcx = rcx / 8
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync cld
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync rep stosq
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync movq %rdx, %rcx # rcx = rdx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync andq $7, %rcx # rcx = rcx & 7
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync rep stosb
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync popq %rax # rax = Buffer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync popq %rbx
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync popq %rdi
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ret