ref: 14bc7731996cd27f1d2193d2f841e92ae8fad703
dir: /vp8/common/arm/armv6/dequantize_v6.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_loop_v6| AREA |.text|, CODE, READONLY ; name this block of code ;------------------------------- ;void vp8_dequantize_b_loop_v6(short *Q, short *DQC, short *DQ); ; r0 short *Q, ; r1 short *DQC ; r2 short *DQ |vp8_dequantize_b_loop_v6| PROC stmdb sp!, {r4-r9, lr} ldr r3, [r0] ;load Q ldr r4, [r1] ;load DQC ldr r5, [r0, #4] ldr r6, [r1, #4] mov r12, #2 ;loop counter dequant_loop smulbb r7, r3, r4 ;multiply smultt r8, r3, r4 smulbb r9, r5, r6 smultt lr, r5, r6 ldr r3, [r0, #8] ldr r4, [r1, #8] ldr r5, [r0, #12] ldr r6, [r1, #12] strh r7, [r2], #2 ;store result smulbb r7, r3, r4 ;multiply strh r8, [r2], #2 smultt r8, r3, r4 strh r9, [r2], #2 smulbb r9, r5, r6 strh lr, [r2], #2 smultt lr, r5, r6 subs r12, r12, #1 add r0, r0, #16 add r1, r1, #16 ldrne r3, [r0] strh r7, [r2], #2 ;store result ldrne r4, [r1] strh r8, [r2], #2 ldrne r5, [r0, #4] strh r9, [r2], #2 ldrne r6, [r1, #4] strh lr, [r2], #2 bne dequant_loop ldmia sp!, {r4-r9, pc} ENDP ;|vp8_dequantize_b_loop_v6| END