ref: e8b818b581b9ab7e9c8f7b1becd753dd4efbdf43
dir: /vp8/common/x86/recon_mmx.asm/
;
; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license
; that can be found in the LICENSE file in the root of the source
; tree. An additional intellectual property rights grant can be found
; in the file PATENTS. All contributing project authors may
; be found in the AUTHORS file in the root of the source tree.
;
%include "vpx_ports/x86_abi_support.asm"
SECTION .text
;void copy_mem8x8_mmx(
; unsigned char *src,
; int src_stride,
; unsigned char *dst,
; int dst_stride
; )
globalsym(vp8_copy_mem8x8_mmx)
sym(vp8_copy_mem8x8_mmx):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 4
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;src;
movq mm0, [rsi]
movsxd rax, dword ptr arg(1) ;src_stride;
mov rdi, arg(2) ;dst;
movq mm1, [rsi+rax]
movq mm2, [rsi+rax*2]
movsxd rcx, dword ptr arg(3) ;dst_stride
lea rsi, [rsi+rax*2]
movq [rdi], mm0
add rsi, rax
movq [rdi+rcx], mm1
movq [rdi+rcx*2], mm2
lea rdi, [rdi+rcx*2]
movq mm3, [rsi]
add rdi, rcx
movq mm4, [rsi+rax]
movq mm5, [rsi+rax*2]
movq [rdi], mm3
lea rsi, [rsi+rax*2]
movq [rdi+rcx], mm4
movq [rdi+rcx*2], mm5
lea rdi, [rdi+rcx*2]
movq mm0, [rsi+rax]
movq mm1, [rsi+rax*2]
movq [rdi+rcx], mm0
movq [rdi+rcx*2],mm1
; begin epilog
pop rdi
pop rsi
UNSHADOW_ARGS
pop rbp
ret
;void copy_mem8x4_mmx(
; unsigned char *src,
; int src_stride,
; unsigned char *dst,
; int dst_stride
; )
globalsym(vp8_copy_mem8x4_mmx)
sym(vp8_copy_mem8x4_mmx):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 4
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;src;
movq mm0, [rsi]
movsxd rax, dword ptr arg(1) ;src_stride;
mov rdi, arg(2) ;dst;
movq mm1, [rsi+rax]
movq mm2, [rsi+rax*2]
movsxd rcx, dword ptr arg(3) ;dst_stride
lea rsi, [rsi+rax*2]
movq [rdi], mm0
movq [rdi+rcx], mm1
movq [rdi+rcx*2], mm2
lea rdi, [rdi+rcx*2]
movq mm3, [rsi+rax]
movq [rdi+rcx], mm3
; begin epilog
pop rdi
pop rsi
UNSHADOW_ARGS
pop rbp
ret