diff options
Diffstat (limited to 'media/libstagefright/codecs/aacenc/src/asm/ARMV5E/AutoCorrelation_v5.s')
| -rw-r--r-- | media/libstagefright/codecs/aacenc/src/asm/ARMV5E/AutoCorrelation_v5.s | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/aacenc/src/asm/ARMV5E/AutoCorrelation_v5.s b/media/libstagefright/codecs/aacenc/src/asm/ARMV5E/AutoCorrelation_v5.s new file mode 100644 index 0000000..e705197 --- /dev/null +++ b/media/libstagefright/codecs/aacenc/src/asm/ARMV5E/AutoCorrelation_v5.s @@ -0,0 +1,167 @@ +@/* +@ ** Copyright 2003-2010, VisualOn, Inc. +@ ** +@ ** Licensed under the Apache License, Version 2.0 (the "License"); +@ ** you may not use this file except in compliance with the License. +@ ** You may obtain a copy of the License at +@ ** +@ ** http://www.apache.org/licenses/LICENSE-2.0 +@ ** +@ ** Unless required by applicable law or agreed to in writing, software +@ ** distributed under the License is distributed on an "AS IS" BASIS, +@ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@ ** See the License for the specific language governing permissions and +@ ** limitations under the License. +@ */ + +@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ +@ File: AutoCorrelation_v5.s +@ +@ Content: AutoCorrelation function armv5 assemble +@ +@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ + + + .section .text + .global AutoCorrelation + +AutoCorrelation: + stmdb sp!, {r4 - r11, lr} + + sub r13, r13, #20 + + mov r5, r0 + mov r7, r1 + mov r9, r3 + mov r2, r2, lsl #16 + mov r0, #0 + mov r4, r2, asr #16 + mov r8, #0 + cmp r4, #0 + ble L136 + + cmp r4, #8 + mov r2, #0 + blt L133 + + sub r12, r4, #8 +L132: + ldr r6, [r5, r2] + add r2, r2, #4 + smulbb r3, r6, r6 + ldr r1, [r5, r2] + smultt r10, r6, r6 + mov r3, r3, asr #9 + smulbb r6, r1, r1 + mov r10, r10, asr #9 + qadd r0, r0, r3 + smultt r11, r1, r1 + add r2, r2, #4 + qadd r0, r0, r10 + mov r6, r6, asr #9 + mov r11, r11, asr #9 + ldr r1, [r5, r2] + qadd r0, r0, r6 + smulbb r10, r1, r1 + smultt r6, r1, r1 + qadd r0, r0, r11 + mov r10, r10, asr #9 + mov r6, r6, asr #9 + qadd r0, r0, r10 + add r2, r2, #4 + add r8, r8, #6 + + qadd r0, r0, r6 + cmp r8, r12 + blt L132 +L133: + ldrsh r6, [r5, r2] + mul r10, r6, r6 + add r2, r2, #2 + mov r1, r10, asr #9 + qadd r0, r0, r1 +L134: + add r8, r8, #1 + cmp r8, r4 + blt L133 +L135: +L136: + str r0, [r7, #0] + cmp r0, #0 + beq L1320 +L137: + mov r2, r9, lsl #16 + mov r8, #1 + mov r2, r2, asr #16 + cmp r2, #1 + ble L1319 +L138: +L139: + sub r4, r4, #1 + mov r14, #0 + mov r3, #0 + cmp r4, #0 + ble L1317 +L1310: + cmp r4, #6 + addlt r6, r5, r8, lsl #1 + blt L1314 +L1311: + add r6, r5, r8, lsl #1 + sub r12, r4, #6 + str r8, [r13, #8] + str r7, [r13, #4] +L1312: + mov r1, r3, lsl #1 + ldrsh r7, [r6, r1] + ldrsh r10, [r5, r1] + add r8, r1, r6 + add r9, r5, r1 + mul r7, r10, r7 + ldrsh r1, [r8, #2] + ldrsh r10, [r8, #4] + add r7, r14, r7, asr #9 + ldrsh r0, [r9, #2] + ldrsh r11, [r9, #4] + mul r1, r0, r1 + ldrsh r14, [r8, #6] + mul r10, r11, r10 + add r7, r7, r1, asr #9 + ldrsh r8, [r8, #8] + add r3, r3, #5 + ldrsh r11, [r9, #6] + ldrsh r1, [r9, #8] + mul r14, r11, r14 + add r7, r7, r10, asr #9 + mul r1, r1, r8 + add r14, r7, r14, asr #9 + cmp r3, r12 + add r14, r14, r1, asr #9 + ble L1312 +L1313: + ldr r8, [r13, #8] + ldr r7, [r13, #4] +L1314: +L1315: + mov r12, r3, lsl #1 + ldrsh r9, [r6, r12] + ldrsh r12, [r5, r12] + add r3, r3, #1 + cmp r3, r4 + mul r12, r12, r9 + add r14, r14, r12, asr #9 + blt L1315 +L1316: +L1317: + str r14, [r7, +r8, lsl #2] + add r8, r8, #1 + cmp r8, r2 + blt L139 + +L1319: +L1320: + add r13, r13, #20 + ldmia sp!, {r4 - r11, pc} + + @ENDP @ |AutoCorrelation| + .end |