110 lines
2.8 KiB
ArmAsm
110 lines
2.8 KiB
ArmAsm
@/******************************************************************************
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@ *
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@ * Copyright (C) 2018 The Android Open Source Project
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@ *
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@ * Licensed under the Apache License, Version 2.0 (the "License");
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@ * you may not use this file except in compliance with the License.
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@ * You may obtain a copy of the License at:
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@ *
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@ * http://www.apache.org/licenses/LICENSE-2.0
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@ *
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@ * Unless required by applicable law or agreed to in writing, software
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@ * distributed under the License is distributed on an "AS IS" BASIS,
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@ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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@ * See the License for the specific language governing permissions and
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@ * limitations under the License.
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@ *
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@ *****************************************************************************
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@ * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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@*/
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.text
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.p2align 2
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.global ixheaacd_harm_idx_zerotwolp_armv7
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ixheaacd_harm_idx_zerotwolp_armv7:
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STMFD sp!, {r4-r12}
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SUB r5, r2, #1
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MOV r2, #-1
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LDR r6, [sp, #52]
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LDR r12, [sp, #48]
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ADD r10, sp, #36
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LDR r4, [sp, #44]
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LDMIA r10, {r9, r10}
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CMP r4, #0
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BLE EXIT
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CMP r12, #0
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BNE NO_NOISE
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LOOP1:
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LDR r12, [r0, #0]
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LDRSH r7, [r1], #2
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LDRSH r8, [r1], #2
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ADD r2, r2, #1
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SMULWB r7, r12, r7
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SUBS r8, r8, r5
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LDRH r12, [r3], #4
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RSBLE r8, r8, #0
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MOVLE r8, r7, ASR r8
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MOVGT r8, r7, LSL r8
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MOVS r12, r12, LSL #16
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BEQ NEXT
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CMP r6, #0
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QADDEQ r8, r8, r12
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QSUBNE r8, r8, r12
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SUBS r4, r4, #1
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B STORE
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NEXT:
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LDR r7, [r9, r2, LSL #2]
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ADD r12, r10, r2, LSL #2
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LDRSH r12, [r12, #0]
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SUBS r4, r4, #1
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SMULTB r7, r7, r12
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ADD r8, r8, r7, LSL #1
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STORE:
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STR r8, [r0], #4
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BGT LOOP1
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B EXIT
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NO_NOISE:
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LOOP2:
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LDR r12, [r0, #0]
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LDRSH r7, [r1], #2
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LDRSH r9, [r1], #2
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LDRH r10, [r3], #4
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SMULWB r7, r12, r7
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SUBS r9, r9, r5
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RSBMI r9, r9, #0
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MOVMI r12, r7, ASR r9
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MOVPL r12, r7, LSL r9
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MOV r7, r10, LSL #16
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CMP r6, #0
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QADDEQ r12, r12, r7
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QSUBNE r12, r12, r7
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SUBS r4, r4, #1
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STR r12, [r0], #4
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BGT LOOP2
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EXIT:
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LDMFD sp!, {r4-r12}
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BX lr
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