| @/****************************************************************************** |
| @ * |
| @ * Copyright (C) 2018 The Android Open Source Project |
| @ * |
| @ * 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. |
| @ * |
| @ ***************************************************************************** |
| @ * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| @*/ |
| |
| |
| .text |
| .p2align 2 |
| .global ixheaacd_inv_dit_fft_8pt_armv7 |
| |
| ixheaacd_inv_dit_fft_8pt_armv7: |
| |
| |
| STMFD sp!, {r4-r12, lr} |
| LDR r3, [r0, #0] |
| LDR r4, [r0, #0x20] |
| LDR r5, [r0, #0x24] |
| QADD r12, r3, r4 |
| LDR r6, [r0, #0x30] |
| QSUB r8, r3, r4 |
| LDR r3, [r0, #4] |
| LDR r9, [r0, #0x34] |
| QADD r4, r3, r5 |
| SUB sp, sp, #0x14 |
| QSUB r5, r3, r5 |
| LDR lr, [r0, #0x10] |
| LDR r3, [r0, #0x14] |
| QADD r10, lr, r6 |
| QSUB r6, lr, r6 |
| QADD r7, r3, r9 |
| QSUB r9, r3, r9 |
| |
| |
| QADD r3, r12, r10 |
| QSUB lr, r12, r10 |
| QADD r12, r4, r7 |
| QSUB r7, r4, r7 |
| QSUB r4, r8, r9 |
| |
| STR r7, [sp, #8] |
| QADD r7, r8, r9 |
| QADD r8, r5, r6 |
| STR r7, [sp, #0xc] |
| QSUB r5, r5, r6 |
| |
| STMIA sp, {r8, lr} |
| STR r5, [sp, #0x10] |
| |
| |
| |
| LDR r5, [r0, #8] |
| LDR lr, [r0, #0x28] |
| LDR r9, [r0, #0x2c] |
| QADD r7, r5, lr |
| LDR r11, [r0, #0x38] |
| LDR r6, [r0, #0xc] |
| QSUB r5, r5, lr |
| LDR lr, [r0, #0x18] |
| QADD r8, r6, r9 |
| QSUB r6, r6, r9 |
| |
| |
| |
| QADD r10, lr, r11 |
| QSUB r9, lr, r11 |
| LDR r11, [r0, #0x1c] |
| LDR r0, [r0, #0x3c] |
| |
| MOV lr, r11 |
| QADD r11, r11, r0 |
| QSUB r0, lr, r0 |
| |
| |
| QADD lr, r7, r10 |
| QSUB r10, r7, r10 |
| QADD r7, r8, r11 |
| QSUB r11, r8, r11 |
| |
| QSUB r8, r5, r0 |
| QADD r5, r5, r0 |
| QADD r0, r6, r9 |
| QSUB r6, r6, r9 |
| |
| |
| QADD r9, r3, lr |
| QSUB r3, r3, lr |
| STR r9, [r1, #0] |
| |
| QADD r9, r12, r7 |
| LDR lr, [sp, #4] |
| STR r9, [r2, #0] |
| QSUB r9, r12, r7 |
| |
| |
| QSUB r12, lr, r11 |
| QADD r11, lr, r11 |
| LDR lr, [sp, #8] |
| STR r11, [r1, #0x10] |
| QADD r7, lr, r10 |
| QSUB r10, lr, r10 |
| |
| MOVW r11, #0x00005a82 |
| STR r10, [r2, #0x10] |
| |
| QSUB r10, r8, r0 |
| QADD r0, r8, r0 |
| SMULWB r10, r10, r11 |
| SMULWB r0, r0, r11 |
| MOV r10, r10, LSL #1 |
| |
| QADD r8, r4, r10 |
| LDR lr, [sp, #0] |
| |
| STR r8, [r1, #4] |
| MOV r0, r0, LSL #1 |
| QADD r8, lr, r0 |
| |
| QSUB r4, r4, r10 |
| STR r8, [r2, #4] |
| QSUB r0, lr, r0 |
| |
| QADD r12, r12, r4 |
| QADD r0, r7, r0 |
| STR r12, [r1, #8] |
| STR r0, [r2, #8] |
| |
| QADD r0, r5, r6 |
| LDR r7, [sp, #0xc] |
| SMULWB r0, r0, r11 |
| |
| QSUB r12, r5, r6 |
| MOV r0, r0, LSL #1 |
| SMULWB r12, r12, r11 |
| LDR r5, [sp, #0x10] |
| QSUB r4, r7, r0 |
| MOV r12, r12, LSL #1 |
| QADD r10, r5, r12 |
| QADD r3, r3, r4 |
| QADD lr, r9, r10 |
| QADD r0, r7, r0 |
| QSUB r10, r5, r12 |
| STR r3, [r1, #0xc] |
| STR lr, [r2, #0xc] |
| STR r0, [r1, #0x14] |
| STR r10, [r2, #0x14] |
| ADD sp, sp, #0x14 |
| LDMFD sp!, {r4-r12, pc} |
| |