1 @/****************************************************************************** 2 @ * 3 @ * Copyright (C) 2018 The Android Open Source Project 4 @ * 5 @ * Licensed under the Apache License, Version 2.0 (the "License"); 6 @ * you may not use this file except in compliance with the License. 7 @ * You may obtain a copy of the License at: 8 @ * 9 @ * http:@www.apache.org/licenses/LICENSE-2.0 10 @ * 11 @ * Unless required by applicable law or agreed to in writing, software 12 @ * distributed under the License is distributed on an "AS IS" BASIS, 13 @ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 @ * See the License for the specific language governing permissions and 15 @ * limitations under the License. 16 @ * 17 @ ***************************************************************************** 18 @ * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 @*/ 20 21 22 .text 23 .p2align 2 24 25 .global ixheaacd_calc_pre_twid_armv7 26 ixheaacd_calc_pre_twid_armv7: 27 28 STMFD sp!, {r4-r12, r14} 29 VPUSH {D8-D15} 30 LDR R4, [SP, #104] 31 LDR R5, [SP, #108] 32 ADD R6, R0, R3, LSL #3 33 SUB R6, R6, #12 34 MOV R7, #-16 35 36 LOOP1: 37 VLD1.32 {D0, D1}, [R4]! 38 VLD1.32 {D2, D3}, [R5]! 39 VLD2.32 {D4, D5}, [R0]! 40 VLD2.32 {D6, D7}, [R0]! 41 VLD2.32 {D8, D9}, [R6], R7 42 VLD2.32 {D10, D11}, [R6], R7 43 44 VREV64.32 D8, D8 45 VREV64.32 D9, D10 46 VNEG.S32 D5, D4 47 VNEG.S32 D7, D6 48 49 VMULL.S32 Q6, D0, D5 50 VMULL.S32 Q7, D2, D8 51 VMULL.S32 Q8, D0, D8 52 VMULL.S32 Q9, D2, D4 53 VMULL.S32 Q10, D1, D7 54 VMULL.S32 Q11, D9, D3 55 VMULL.S32 Q12, D1, D9 56 VMULL.S32 Q13, D3, D6 57 58 59 VSHRN.S64 D12, Q6, #32 60 VSHRN.S64 D14, Q7, #32 61 VSHRN.S64 D16, Q8, #32 62 VSHRN.S64 D18, Q9, #32 63 VSHRN.S64 D20, Q10, #32 64 VSHRN.S64 D22, Q11, #32 65 VSHRN.S64 D24, Q12, #32 66 VSHRN.S64 D26, Q13, #32 67 68 VSUB.I32 D0, D12, D14 69 VSUB.I32 D2, D16, D18 70 VSUB.I32 D1, D20, D22 71 VSUB.I32 D3, D24, D26 72 73 SUBS R3, R3, #4 74 VST1.32 {D0, D1}, [R1]! 75 VST1.32 {D2, D3}, [R2]! 76 77 BGT LOOP1 78 VPOP {D8-D15} 79 LDMFD sp!, {r4-r12, r15} 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108
