ref: d22f3d9f4254b7ad65645e574313b7abe474a97d
dir: /vp9/common/x86/iwalsh_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"
;void vp9_short_inv_walsh4x4_1_mmx(short *input, short *output)
global sym(vp9_short_inv_walsh4x4_1_mmx)
sym(vp9_short_inv_walsh4x4_1_mmx):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 2
push rsi
push rdi
; end prolog
mov rsi, arg(0)
mov rax, 3
mov rdi, arg(1)
add rax, [rsi] ;input[0] + 3
movd mm0, eax
punpcklwd mm0, mm0 ;x x val val
punpckldq mm0, mm0 ;val val val val
psraw mm0, 3 ;(input[0] + 3) >> 3
movq [rdi + 0], mm0
movq [rdi + 8], mm0
movq [rdi + 16], mm0
movq [rdi + 24], mm0
; begin epilog
pop rdi
pop rsi
UNSHADOW_ARGS
pop rbp
ret
;void vp9_short_inv_walsh4x4_mmx(short *input, short *output)
global sym(vp9_short_inv_walsh4x4_mmx)
sym(vp9_short_inv_walsh4x4_mmx):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 2
push rsi
push rdi
; end prolog
mov rax, 3
mov rsi, arg(0)
mov rdi, arg(1)
shl rax, 16
movq mm0, [rsi + 0] ;ip[0]
movq mm1, [rsi + 8] ;ip[4]
or rax, 3 ;00030003h
movq mm2, [rsi + 16] ;ip[8]
movq mm3, [rsi + 24] ;ip[12]
movq mm7, rax
movq mm4, mm0
punpcklwd mm7, mm7 ;0003000300030003h
movq mm5, mm1
paddw mm4, mm3 ;ip[0] + ip[12] aka al
paddw mm5, mm2 ;ip[4] + ip[8] aka bl
movq mm6, mm4 ;temp al
paddw mm4, mm5 ;al + bl
psubw mm6, mm5 ;al - bl
psubw mm0, mm3 ;ip[0] - ip[12] aka d1
psubw mm1, mm2 ;ip[4] - ip[8] aka c1
movq mm5, mm0 ;temp dl
paddw mm0, mm1 ;dl + cl
psubw mm5, mm1 ;dl - cl
; 03 02 01 00
; 13 12 11 10
; 23 22 21 20
; 33 32 31 30
movq mm3, mm4 ; 03 02 01 00
punpcklwd mm4, mm0 ; 11 01 10 00
punpckhwd mm3, mm0 ; 13 03 12 02
movq mm1, mm6 ; 23 22 21 20
punpcklwd mm6, mm5 ; 31 21 30 20
punpckhwd mm1, mm5 ; 33 23 32 22
movq mm0, mm4 ; 11 01 10 00
movq mm2, mm3 ; 13 03 12 02
punpckldq mm0, mm6 ; 30 20 10 00 aka ip[0]
punpckhdq mm4, mm6 ; 31 21 11 01 aka ip[4]
punpckldq mm2, mm1 ; 32 22 12 02 aka ip[8]
punpckhdq mm3, mm1 ; 33 23 13 03 aka ip[12]
;~~~~~~~~~~~~~~~~~~~~~
movq mm1, mm0
movq mm5, mm4
paddw mm1, mm3 ;ip[0] + ip[12] aka al
paddw mm5, mm2 ;ip[4] + ip[8] aka bl
movq mm6, mm1 ;temp al
paddw mm1, mm5 ;al + bl
psubw mm6, mm5 ;al - bl
psubw mm0, mm3 ;ip[0] - ip[12] aka d1
psubw mm4, mm2 ;ip[4] - ip[8] aka c1
movq mm5, mm0 ;temp dl
paddw mm0, mm4 ;dl + cl
psubw mm5, mm4 ;dl - cl
;~~~~~~~~~~~~~~~~~~~~~
movq mm3, mm1 ; 03 02 01 00
punpcklwd mm1, mm0 ; 11 01 10 00
punpckhwd mm3, mm0 ; 13 03 12 02
movq mm4, mm6 ; 23 22 21 20
punpcklwd mm6, mm5 ; 31 21 30 20
punpckhwd mm4, mm5 ; 33 23 32 22
movq mm0, mm1 ; 11 01 10 00
movq mm2, mm3 ; 13 03 12 02
punpckldq mm0, mm6 ; 30 20 10 00 aka ip[0]
punpckhdq mm1, mm6 ; 31 21 11 01 aka ip[4]
punpckldq mm2, mm4 ; 32 22 12 02 aka ip[8]
punpckhdq mm3, mm4 ; 33 23 13 03 aka ip[12]
paddw mm0, mm7
paddw mm1, mm7
paddw mm2, mm7
paddw mm3, mm7
psraw mm0, 3
psraw mm1, 3
psraw mm2, 3
psraw mm3, 3
movq [rdi + 0], mm0
movq [rdi + 8], mm1
movq [rdi + 16], mm2
movq [rdi + 24], mm3
; begin epilog
pop rdi
pop rsi
UNSHADOW_ARGS
pop rbp
ret