ref: 5c60a646f3faa6c2cb3c55c971803a43657a9a1b
dir: /vp8/decoder/arm/armv5/dequantize_v5.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.
;
EXPORT |vp8_dequantize_b_armv5|
AREA |.text|, CODE, READONLY ; name this block of code
q RN r0
dqc RN r1
cnt RN r2
;void dequantize_b_armv5(short *Q, short *DQC)
|vp8_dequantize_b_armv5| PROC
stmdb sp!, {r4, lr}
ldr r3, [q]
ldr r4, [dqc], #8
mov cnt, #4
dequant_loop
smulbb lr, r3, r4
smultt r12, r3, r4
ldr r3, [q, #4]
ldr r4, [dqc, #-4]
strh lr, [q], #2
strh r12, [q], #2
smulbb lr, r3, r4
smultt r12, r3, r4
subs cnt, cnt, #1
ldrne r3, [q, #4]
ldrne r4, [dqc], #8
strh lr, [q], #2
strh r12, [q], #2
bne dequant_loop
ldmia sp!, {r4, pc}
ENDP ;|vp8_dequantize_b_arm|
END