12bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian/*Copyright (c) 2013, Xiph.Org Foundation and contributors. 22bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 32bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian All rights reserved. 42bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 52bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian Redistribution and use in source and binary forms, with or without 62bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian modification, are permitted provided that the following conditions are met: 72bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 82bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian * Redistributions of source code must retain the above copyright notice, 92bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian this list of conditions and the following disclaimer. 102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian * Redistributions in binary form must reproduce the above copyright notice, 112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian this list of conditions and the following disclaimer in the 122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian documentation and/or other materials provided with the distribution. 132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 222bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 232bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 242bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian POSSIBILITY OF SUCH DAMAGE.*/ 252bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 262bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifndef KISS_FFT_ARMv4_H 272bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define KISS_FFT_ARMv4_H 282bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 292bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#if !defined(KISS_FFT_GUTS_H) 302bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#error "This file should only be included from _kiss_fft_guts.h" 312bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif 322bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 332bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#ifdef FIXED_POINT 342bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 352bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#undef C_MUL 362bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define C_MUL(m,a,b) \ 372bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian do{ \ 382bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int br__; \ 392bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int bi__; \ 402bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int tt__; \ 412bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian __asm__ __volatile__( \ 422bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "#C_MUL\n\t" \ 432bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "ldrsh %[br], [%[bp], #0]\n\t" \ 442bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "ldm %[ap], {r0,r1}\n\t" \ 452bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "ldrsh %[bi], [%[bp], #2]\n\t" \ 462bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smull %[tt], %[mi], r1, %[br]\n\t" \ 472bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smlal %[tt], %[mi], r0, %[bi]\n\t" \ 482bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "rsb %[bi], %[bi], #0\n\t" \ 492bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smull %[br], %[mr], r0, %[br]\n\t" \ 502bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "mov %[tt], %[tt], lsr #15\n\t" \ 512bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smlal %[br], %[mr], r1, %[bi]\n\t" \ 522bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "orr %[mi], %[tt], %[mi], lsl #17\n\t" \ 532bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "mov %[br], %[br], lsr #15\n\t" \ 542bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "orr %[mr], %[br], %[mr], lsl #17\n\t" \ 552bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian : [mr]"=r"((m).r), [mi]"=r"((m).i), \ 562bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian [br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \ 572bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian : [ap]"r"(&(a)), [bp]"r"(&(b)) \ 582bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian : "r0", "r1" \ 592bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ); \ 602bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } \ 612bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian while(0) 622bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 632bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#undef C_MUL4 642bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define C_MUL4(m,a,b) \ 652bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian do{ \ 662bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int br__; \ 672bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int bi__; \ 682bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int tt__; \ 692bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian __asm__ __volatile__( \ 702bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "#C_MUL4\n\t" \ 712bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "ldrsh %[br], [%[bp], #0]\n\t" \ 722bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "ldm %[ap], {r0,r1}\n\t" \ 732bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "ldrsh %[bi], [%[bp], #2]\n\t" \ 742bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smull %[tt], %[mi], r1, %[br]\n\t" \ 752bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smlal %[tt], %[mi], r0, %[bi]\n\t" \ 762bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "rsb %[bi], %[bi], #0\n\t" \ 772bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smull %[br], %[mr], r0, %[br]\n\t" \ 782bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "mov %[tt], %[tt], lsr #17\n\t" \ 792bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smlal %[br], %[mr], r1, %[bi]\n\t" \ 802bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "orr %[mi], %[tt], %[mi], lsl #15\n\t" \ 812bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "mov %[br], %[br], lsr #17\n\t" \ 822bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "orr %[mr], %[br], %[mr], lsl #15\n\t" \ 832bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian : [mr]"=r"((m).r), [mi]"=r"((m).i), \ 842bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian [br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \ 852bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian : [ap]"r"(&(a)), [bp]"r"(&(b)) \ 862bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian : "r0", "r1" \ 872bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ); \ 882bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } \ 892bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian while(0) 902bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 912bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#undef C_MULC 922bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#define C_MULC(m,a,b) \ 932bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian do{ \ 942bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int br__; \ 952bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int bi__; \ 962bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian int tt__; \ 972bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian __asm__ __volatile__( \ 982bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "#C_MULC\n\t" \ 992bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "ldrsh %[br], [%[bp], #0]\n\t" \ 1002bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "ldm %[ap], {r0,r1}\n\t" \ 1012bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "ldrsh %[bi], [%[bp], #2]\n\t" \ 1022bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smull %[tt], %[mr], r0, %[br]\n\t" \ 1032bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smlal %[tt], %[mr], r1, %[bi]\n\t" \ 1042bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "rsb %[bi], %[bi], #0\n\t" \ 1052bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smull %[br], %[mi], r1, %[br]\n\t" \ 1062bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "mov %[tt], %[tt], lsr #15\n\t" \ 1072bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "smlal %[br], %[mi], r0, %[bi]\n\t" \ 1082bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "orr %[mr], %[tt], %[mr], lsl #17\n\t" \ 1092bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "mov %[br], %[br], lsr #15\n\t" \ 1102bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian "orr %[mi], %[br], %[mi], lsl #17\n\t" \ 1112bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian : [mr]"=r"((m).r), [mi]"=r"((m).i), \ 1122bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian [br]"=&r"(br__), [bi]"=r"(bi__), [tt]"=r"(tt__) \ 1132bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian : [ap]"r"(&(a)), [bp]"r"(&(b)) \ 1142bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian : "r0", "r1" \ 1152bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian ); \ 1162bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian } \ 1172bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian while(0) 1182bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1192bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif /* FIXED_POINT */ 1202bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian 1212bd8b54017b5320bc0c1df9bf86f4cdc9f8db242Vignesh Venkatasubramanian#endif /* KISS_FFT_ARMv4_H */ 122