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|
/*
* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "webrtc/modules/audio_coding/codecs/isac/fix/source/codec.h"
#include "webrtc/modules/audio_coding/codecs/isac/fix/source/fft.h"
#include "webrtc/modules/audio_coding/codecs/isac/fix/source/settings.h"
// The tables are defined in transform_tables.c file.
extern const int16_t WebRtcIsacfix_kCosTab1[FRAMESAMPLES/2];
extern const int16_t WebRtcIsacfix_kSinTab1[FRAMESAMPLES/2];
extern const int16_t WebRtcIsacfix_kCosTab2[FRAMESAMPLES/4];
extern const int16_t WebRtcIsacfix_kSinTab2[FRAMESAMPLES/4];
// MIPS DSPr2 version of the WebRtcIsacfix_Time2Spec function
// is not bit-exact with the C version.
// The accuracy of the MIPS DSPr2 version is same or better.
void WebRtcIsacfix_Time2SpecMIPS(int16_t* inre1Q9,
int16_t* inre2Q9,
int16_t* outreQ7,
int16_t* outimQ7) {
int k = FRAMESAMPLES / 2;
int32_t tmpreQ16[FRAMESAMPLES / 2], tmpimQ16[FRAMESAMPLES / 2];
int32_t r0, r1, r2, r3, r4, r5, r6, r7, r8, r9;
int32_t inre1, inre2, tmpre, tmpim, factor, max, max1;
int16_t* cosptr;
int16_t* sinptr;
cosptr = (int16_t*)WebRtcIsacfix_kCosTab1;
sinptr = (int16_t*)WebRtcIsacfix_kSinTab1;
__asm __volatile (
".set push \n\t"
".set noreorder \n\t"
"addiu %[inre1], %[inre1Q9], 0 \n\t"
"addiu %[inre2], %[inre2Q9], 0 \n\t"
"addiu %[tmpre], %[tmpreQ16], 0 \n\t"
"addiu %[tmpim], %[tmpimQ16], 0 \n\t"
"addiu %[factor], $zero, 16921 \n\t"
"mul %[max], $zero, $zero \n\t"
// Multiply with complex exponentials and combine into one complex vector.
// Also, calculate the maximal absolute value in the same loop.
"1: \n\t"
#if defined(MIPS_DSP_R2_LE)
"lwl %[r0], 0(%[inre1]) \n\t"
"lwl %[r2], 0(%[cosptr]) \n\t"
"lwl %[r3], 0(%[sinptr]) \n\t"
"lwl %[r1], 0(%[inre2]) \n\t"
"lwr %[r0], 0(%[inre1]) \n\t"
"lwr %[r2], 0(%[cosptr]) \n\t"
"lwr %[r3], 0(%[sinptr]) \n\t"
"lwr %[r1], 0(%[inre2]) \n\t"
"muleq_s.w.phr %[r4], %[r2], %[r0] \n\t"
"muleq_s.w.phr %[r5], %[r3], %[r0] \n\t"
"muleq_s.w.phr %[r6], %[r3], %[r1] \n\t"
"muleq_s.w.phr %[r7], %[r2], %[r1] \n\t"
"muleq_s.w.phl %[r8], %[r2], %[r0] \n\t"
"muleq_s.w.phl %[r0], %[r3], %[r0] \n\t"
"muleq_s.w.phl %[r3], %[r3], %[r1] \n\t"
"muleq_s.w.phl %[r1], %[r2], %[r1] \n\t"
"addiu %[k], %[k], -2 \n\t"
"addu %[r4], %[r4], %[r6] \n\t"
"subu %[r5], %[r7], %[r5] \n\t"
"sra %[r4], %[r4], 8 \n\t"
"sra %[r5], %[r5], 8 \n\t"
"mult $ac0, %[factor], %[r4] \n\t"
"mult $ac1, %[factor], %[r5] \n\t"
"addu %[r3], %[r8], %[r3] \n\t"
"subu %[r0], %[r1], %[r0] \n\t"
"sra %[r3], %[r3], 8 \n\t"
"sra %[r0], %[r0], 8 \n\t"
"mult $ac2, %[factor], %[r3] \n\t"
"mult $ac3, %[factor], %[r0] \n\t"
"extr_r.w %[r4], $ac0, 16 \n\t"
"extr_r.w %[r5], $ac1, 16 \n\t"
"addiu %[inre1], %[inre1], 4 \n\t"
"addiu %[inre2], %[inre2], 4 \n\t"
"extr_r.w %[r6], $ac2, 16 \n\t"
"extr_r.w %[r7], $ac3, 16 \n\t"
"addiu %[cosptr], %[cosptr], 4 \n\t"
"addiu %[sinptr], %[sinptr], 4 \n\t"
"shra_r.w %[r4], %[r4], 3 \n\t"
"shra_r.w %[r5], %[r5], 3 \n\t"
"sw %[r4], 0(%[tmpre]) \n\t"
"absq_s.w %[r4], %[r4] \n\t"
"sw %[r5], 0(%[tmpim]) \n\t"
"absq_s.w %[r5], %[r5] \n\t"
"shra_r.w %[r6], %[r6], 3 \n\t"
"shra_r.w %[r7], %[r7], 3 \n\t"
"sw %[r6], 4(%[tmpre]) \n\t"
"absq_s.w %[r6], %[r6] \n\t"
"sw %[r7], 4(%[tmpim]) \n\t"
"absq_s.w %[r7], %[r7] \n\t"
"slt %[r0], %[r4], %[r5] \n\t"
"movn %[r4], %[r5], %[r0] \n\t"
"slt %[r1], %[r6], %[r7] \n\t"
"movn %[r6], %[r7], %[r1] \n\t"
"slt %[r0], %[max], %[r4] \n\t"
"movn %[max], %[r4], %[r0] \n\t"
"slt %[r1], %[max], %[r6] \n\t"
"movn %[max], %[r6], %[r1] \n\t"
"addiu %[tmpre], %[tmpre], 8 \n\t"
"bgtz %[k], 1b \n\t"
" addiu %[tmpim], %[tmpim], 8 \n\t"
#else // #if defined(MIPS_DSP_R2_LE)
"lh %[r0], 0(%[inre1]) \n\t"
"lh %[r1], 0(%[inre2]) \n\t"
"lh %[r2], 0(%[cosptr]) \n\t"
"lh %[r3], 0(%[sinptr]) \n\t"
"addiu %[k], %[k], -1 \n\t"
"mul %[r4], %[r0], %[r2] \n\t"
"mul %[r5], %[r1], %[r3] \n\t"
"mul %[r0], %[r0], %[r3] \n\t"
"mul %[r2], %[r1], %[r2] \n\t"
"addiu %[inre1], %[inre1], 2 \n\t"
"addiu %[inre2], %[inre2], 2 \n\t"
"addiu %[cosptr], %[cosptr], 2 \n\t"
"addiu %[sinptr], %[sinptr], 2 \n\t"
"addu %[r1], %[r4], %[r5] \n\t"
"sra %[r1], %[r1], 7 \n\t"
"sra %[r3], %[r1], 16 \n\t"
"andi %[r1], %[r1], 0xFFFF \n\t"
"sra %[r1], %[r1], 1 \n\t"
"mul %[r1], %[factor], %[r1] \n\t"
"mul %[r3], %[factor], %[r3] \n\t"
"subu %[r0], %[r2], %[r0] \n\t"
"sra %[r0], %[r0], 7 \n\t"
"sra %[r2], %[r0], 16 \n\t"
"andi %[r0], %[r0], 0xFFFF \n\t"
"sra %[r0], %[r0], 1 \n\t"
"mul %[r0], %[factor], %[r0] \n\t"
"mul %[r2], %[factor], %[r2] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r1], %[r1], 15 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r1], %[r1], 0x4000 \n\t"
"sra %[r1], %[r1], 15 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r1], %[r3], %[r1] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r1], %[r1], 3 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r1], %[r1], 4 \n\t"
"sra %[r1], %[r1], 3 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sw %[r1], 0(%[tmpre]) \n\t"
"addiu %[tmpre], %[tmpre], 4 \n\t"
#if defined(MIPS_DSP_R1_LE)
"absq_s.w %[r1], %[r1] \n\t"
"shra_r.w %[r0], %[r0], 15 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"negu %[r4], %[r1] \n\t"
"slt %[r3], %[r1], $zero \n\t"
"movn %[r1], %[r4], %[r3] \n\t"
"addiu %[r0], %[r0], 0x4000 \n\t"
"sra %[r0], %[r0], 15 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r0], %[r0], %[r2] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r0], %[r0], 3 \n\t"
"sw %[r0], 0(%[tmpim]) \n\t"
"absq_s.w %[r0], %[r0] \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r0], %[r0], 4 \n\t"
"sra %[r0], %[r0], 3 \n\t"
"sw %[r0], 0(%[tmpim]) \n\t"
"negu %[r2], %[r0] \n\t"
"slt %[r3], %[r0], $zero \n\t"
"movn %[r0], %[r2], %[r3] \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"slt %[r2], %[max], %[r1] \n\t"
"movn %[max], %[r1], %[r2] \n\t"
"slt %[r2], %[max], %[r0] \n\t"
"movn %[max], %[r0], %[r2] \n\t"
"bgtz %[k], 1b \n\t"
" addiu %[tmpim], %[tmpim], 4 \n\t"
#endif // #if defined(MIPS_DSP_R2_LE)
// Calculate WebRtcSpl_NormW32(max).
// If max gets value >=0, we should shift max steps to the left, and the
// domain will be Q(16+shift). If max gets value <0, we should shift -max
// steps to the right, and the domain will be Q(16+max)
"clz %[max], %[max] \n\t"
"addiu %[max], %[max], -25 \n\t"
".set pop \n\t"
: [k] "+r" (k), [inre1] "=&r" (inre1), [inre2] "=&r" (inre2),
[r0] "=&r" (r0), [r1] "=&r" (r1), [r2] "=&r" (r2),
[r3] "=&r" (r3), [r4] "=&r" (r4), [tmpre] "=&r" (tmpre),
[tmpim] "=&r" (tmpim), [max] "=&r" (max), [factor] "=&r" (factor),
#if defined(MIPS_DSP_R2_LE)
[r6] "=&r" (r6), [r7] "=&r" (r7), [r8] "=&r" (r8),
#endif // #if defined(MIPS_DSP_R2_LE)
[r5] "=&r" (r5)
: [inre1Q9] "r" (inre1Q9), [inre2Q9] "r" (inre2Q9),
[tmpreQ16] "r" (tmpreQ16), [tmpimQ16] "r" (tmpimQ16),
[cosptr] "r" (cosptr), [sinptr] "r" (sinptr)
: "hi", "lo", "memory"
);
// "Fastest" vectors
k = FRAMESAMPLES / 4;
__asm __volatile (
".set push \n\t"
".set noreorder \n\t"
"addiu %[tmpre], %[tmpreQ16], 0 \n\t"
"addiu %[tmpim], %[tmpimQ16], 0 \n\t"
"addiu %[inre1], %[inre1Q9], 0 \n\t"
"addiu %[inre2], %[inre2Q9], 0 \n\t"
"blez %[max], 2f \n\t"
" subu %[max1], $zero, %[max] \n\t"
"1: \n\t"
"lw %[r0], 0(%[tmpre]) \n\t"
"lw %[r1], 0(%[tmpim]) \n\t"
"lw %[r2], 4(%[tmpre]) \n\t"
"lw %[r3], 4(%[tmpim]) \n\t"
"addiu %[k], %[k], -1 \n\t"
"sllv %[r0], %[r0], %[max] \n\t"
"sllv %[r1], %[r1], %[max] \n\t"
"sllv %[r2], %[r2], %[max] \n\t"
"sllv %[r3], %[r3], %[max] \n\t"
"addiu %[tmpre], %[tmpre], 8 \n\t"
"addiu %[tmpim], %[tmpim], 8 \n\t"
"sh %[r0], 0(%[inre1]) \n\t"
"sh %[r1], 0(%[inre2]) \n\t"
"sh %[r2], 2(%[inre1]) \n\t"
"sh %[r3], 2(%[inre2]) \n\t"
"addiu %[inre1], %[inre1], 4 \n\t"
"bgtz %[k], 1b \n\t"
" addiu %[inre2], %[inre2], 4 \n\t"
"b 4f \n\t"
" nop \n\t"
"2: \n\t"
#if !defined(MIPS_DSP_R1_LE)
"addiu %[r4], %[max1], -1 \n\t"
"addiu %[r5], $zero, 1 \n\t"
"sllv %[r4], %[r5], %[r4] \n\t"
#endif // #if !defined(MIPS_DSP_R1_LE)
"3: \n\t"
"lw %[r0], 0(%[tmpre]) \n\t"
"lw %[r1], 0(%[tmpim]) \n\t"
"lw %[r2], 4(%[tmpre]) \n\t"
"lw %[r3], 4(%[tmpim]) \n\t"
"addiu %[k], %[k], -1 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shrav_r.w %[r0], %[r0], %[max1] \n\t"
"shrav_r.w %[r1], %[r1], %[max1] \n\t"
"shrav_r.w %[r2], %[r2], %[max1] \n\t"
"shrav_r.w %[r3], %[r3], %[max1] \n\t"
#else // #if !defined(MIPS_DSP_R1_LE)
"addu %[r0], %[r0], %[r4] \n\t"
"addu %[r1], %[r1], %[r4] \n\t"
"addu %[r2], %[r2], %[r4] \n\t"
"addu %[r3], %[r3], %[r4] \n\t"
"srav %[r0], %[r0], %[max1] \n\t"
"srav %[r1], %[r1], %[max1] \n\t"
"srav %[r2], %[r2], %[max1] \n\t"
"srav %[r3], %[r3], %[max1] \n\t"
#endif // #if !defined(MIPS_DSP_R1_LE)
"addiu %[tmpre], %[tmpre], 8 \n\t"
"addiu %[tmpim], %[tmpim], 8 \n\t"
"sh %[r0], 0(%[inre1]) \n\t"
"sh %[r1], 0(%[inre2]) \n\t"
"sh %[r2], 2(%[inre1]) \n\t"
"sh %[r3], 2(%[inre2]) \n\t"
"addiu %[inre1], %[inre1], 4 \n\t"
"bgtz %[k], 3b \n\t"
" addiu %[inre2], %[inre2], 4 \n\t"
"4: \n\t"
".set pop \n\t"
: [tmpre] "=&r" (tmpre), [tmpim] "=&r" (tmpim), [inre1] "=&r" (inre1),
[inre2] "=&r" (inre2), [k] "+r" (k), [max1] "=&r" (max1),
#if !defined(MIPS_DSP_R1_LE)
[r4] "=&r" (r4), [r5] "=&r" (r5),
#endif // #if !defined(MIPS_DSP_R1_LE)
[r0] "=&r" (r0), [r1] "=&r" (r1), [r2] "=&r" (r2), [r3] "=&r" (r3)
: [tmpreQ16] "r" (tmpreQ16), [tmpimQ16] "r" (tmpimQ16),
[inre1Q9] "r" (inre1Q9), [inre2Q9] "r" (inre2Q9), [max] "r" (max)
: "memory"
);
// Get DFT
WebRtcIsacfix_FftRadix16Fastest(inre1Q9, inre2Q9, -1); // real call
// "Fastest" vectors and
// Use symmetry to separate into two complex vectors
// and center frames in time around zero
// merged into one loop
cosptr = (int16_t*)WebRtcIsacfix_kCosTab2;
sinptr = (int16_t*)WebRtcIsacfix_kSinTab2;
k = FRAMESAMPLES / 4;
factor = FRAMESAMPLES - 2; // offset for FRAMESAMPLES / 2 - 1 array member
__asm __volatile (
".set push \n\t"
".set noreorder \n\t"
"addiu %[inre1], %[inre1Q9], 0 \n\t"
"addiu %[inre2], %[inre2Q9], 0 \n\t"
"addiu %[tmpre], %[outreQ7], 0 \n\t"
"addiu %[tmpim], %[outimQ7], 0 \n\t"
"bltz %[max], 2f \n\t"
" subu %[max1], $zero, %[max] \n\t"
"1: \n\t"
#if !defined(MIPS_DSP_R1_LE)
"addu %[r4], %[inre1], %[offset] \n\t"
"addu %[r5], %[inre2], %[offset] \n\t"
#endif // #if !defined(MIPS_DSP_R1_LE)
"lh %[r0], 0(%[inre1]) \n\t"
"lh %[r1], 0(%[inre2]) \n\t"
#if defined(MIPS_DSP_R1_LE)
"lhx %[r2], %[offset](%[inre1]) \n\t"
"lhx %[r3], %[offset](%[inre2]) \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"lh %[r2], 0(%[r4]) \n\t"
"lh %[r3], 0(%[r5]) \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"srav %[r0], %[r0], %[max] \n\t"
"srav %[r1], %[r1], %[max] \n\t"
"srav %[r2], %[r2], %[max] \n\t"
"srav %[r3], %[r3], %[max] \n\t"
"addu %[r4], %[r0], %[r2] \n\t"
"subu %[r0], %[r2], %[r0] \n\t"
"subu %[r2], %[r1], %[r3] \n\t"
"addu %[r1], %[r1], %[r3] \n\t"
"lh %[r3], 0(%[cosptr]) \n\t"
"lh %[r5], 0(%[sinptr]) \n\t"
"andi %[r6], %[r4], 0xFFFF \n\t"
"sra %[r4], %[r4], 16 \n\t"
"mul %[r7], %[r3], %[r6] \n\t"
"mul %[r8], %[r3], %[r4] \n\t"
"mul %[r6], %[r5], %[r6] \n\t"
"mul %[r4], %[r5], %[r4] \n\t"
"addiu %[k], %[k], -1 \n\t"
"addiu %[inre1], %[inre1], 2 \n\t"
"addiu %[inre2], %[inre2], 2 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r7], %[r7], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r7], %[r7], 0x2000 \n\t"
"sra %[r7], %[r7], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r8], %[r8], 2 \n\t"
"addu %[r8], %[r8], %[r7] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r6], %[r6], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r6], %[r6], 0x2000 \n\t"
"sra %[r6], %[r6], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r4], %[r4], 2 \n\t"
"addu %[r4], %[r4], %[r6] \n\t"
"andi %[r6], %[r2], 0xFFFF \n\t"
"sra %[r2], %[r2], 16 \n\t"
"mul %[r7], %[r5], %[r6] \n\t"
"mul %[r9], %[r5], %[r2] \n\t"
"mul %[r6], %[r3], %[r6] \n\t"
"mul %[r2], %[r3], %[r2] \n\t"
"addiu %[cosptr], %[cosptr], 2 \n\t"
"addiu %[sinptr], %[sinptr], 2 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r7], %[r7], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r7], %[r7], 0x2000 \n\t"
"sra %[r7], %[r7], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r9], %[r9], 2 \n\t"
"addu %[r9], %[r7], %[r9] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r6], %[r6], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r6], %[r6], 0x2000 \n\t"
"sra %[r6], %[r6], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r2], %[r2], 2 \n\t"
"addu %[r2], %[r6], %[r2] \n\t"
"subu %[r8], %[r8], %[r9] \n\t"
"sra %[r8], %[r8], 9 \n\t"
"addu %[r2], %[r4], %[r2] \n\t"
"sra %[r2], %[r2], 9 \n\t"
"sh %[r8], 0(%[tmpre]) \n\t"
"sh %[r2], 0(%[tmpim]) \n\t"
"andi %[r4], %[r1], 0xFFFF \n\t"
"sra %[r1], %[r1], 16 \n\t"
"andi %[r6], %[r0], 0xFFFF \n\t"
"sra %[r0], %[r0], 16 \n\t"
"mul %[r7], %[r5], %[r4] \n\t"
"mul %[r9], %[r5], %[r1] \n\t"
"mul %[r4], %[r3], %[r4] \n\t"
"mul %[r1], %[r3], %[r1] \n\t"
"mul %[r8], %[r3], %[r0] \n\t"
"mul %[r3], %[r3], %[r6] \n\t"
"mul %[r6], %[r5], %[r6] \n\t"
"mul %[r0], %[r5], %[r0] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r7], %[r7], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r7], %[r7], 0x2000 \n\t"
"sra %[r7], %[r7], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r9], %[r9], 2 \n\t"
"addu %[r9], %[r9], %[r7] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r4], %[r4], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r4], %[r4], 0x2000 \n\t"
"sra %[r4], %[r4], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r1], %[r1], 2 \n\t"
"addu %[r1], %[r1], %[r4] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r3], %[r3], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r3], %[r3], 0x2000 \n\t"
"sra %[r3], %[r3], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r8], %[r8], 2 \n\t"
"addu %[r8], %[r8], %[r3] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r6], %[r6], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r6], %[r6], 0x2000 \n\t"
"sra %[r6], %[r6], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r0], %[r0], 2 \n\t"
"addu %[r0], %[r0], %[r6] \n\t"
"addu %[r3], %[tmpre], %[offset] \n\t"
"addu %[r2], %[tmpim], %[offset] \n\t"
"addu %[r9], %[r9], %[r8] \n\t"
"negu %[r9], %[r9] \n\t"
"sra %[r9], %[r9], 9 \n\t"
"subu %[r0], %[r0], %[r1] \n\t"
"addiu %[offset], %[offset], -4 \n\t"
"sh %[r9], 0(%[r3]) \n\t"
"sh %[r0], 0(%[r2]) \n\t"
"addiu %[tmpre], %[tmpre], 2 \n\t"
"bgtz %[k], 1b \n\t"
" addiu %[tmpim], %[tmpim], 2 \n\t"
"b 3f \n\t"
" nop \n\t"
"2: \n\t"
#if !defined(MIPS_DSP_R1_LE)
"addu %[r4], %[inre1], %[offset] \n\t"
"addu %[r5], %[inre2], %[offset] \n\t"
#endif // #if !defined(MIPS_DSP_R1_LE)
"lh %[r0], 0(%[inre1]) \n\t"
"lh %[r1], 0(%[inre2]) \n\t"
#if defined(MIPS_DSP_R1_LE)
"lhx %[r2], %[offset](%[inre1]) \n\t"
"lhx %[r3], %[offset](%[inre2]) \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"lh %[r2], 0(%[r4]) \n\t"
"lh %[r3], 0(%[r5]) \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sllv %[r0], %[r0], %[max1] \n\t"
"sllv %[r1], %[r1], %[max1] \n\t"
"sllv %[r2], %[r2], %[max1] \n\t"
"sllv %[r3], %[r3], %[max1] \n\t"
"addu %[r4], %[r0], %[r2] \n\t"
"subu %[r0], %[r2], %[r0] \n\t"
"subu %[r2], %[r1], %[r3] \n\t"
"addu %[r1], %[r1], %[r3] \n\t"
"lh %[r3], 0(%[cosptr]) \n\t"
"lh %[r5], 0(%[sinptr]) \n\t"
"andi %[r6], %[r4], 0xFFFF \n\t"
"sra %[r4], %[r4], 16 \n\t"
"mul %[r7], %[r3], %[r6] \n\t"
"mul %[r8], %[r3], %[r4] \n\t"
"mul %[r6], %[r5], %[r6] \n\t"
"mul %[r4], %[r5], %[r4] \n\t"
"addiu %[k], %[k], -1 \n\t"
"addiu %[inre1], %[inre1], 2 \n\t"
"addiu %[inre2], %[inre2], 2 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r7], %[r7], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r7], %[r7], 0x2000 \n\t"
"sra %[r7], %[r7], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r8], %[r8], 2 \n\t"
"addu %[r8], %[r8], %[r7] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r6], %[r6], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r6], %[r6], 0x2000 \n\t"
"sra %[r6], %[r6], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r4], %[r4], 2 \n\t"
"addu %[r4], %[r4], %[r6] \n\t"
"andi %[r6], %[r2], 0xFFFF \n\t"
"sra %[r2], %[r2], 16 \n\t"
"mul %[r7], %[r5], %[r6] \n\t"
"mul %[r9], %[r5], %[r2] \n\t"
"mul %[r6], %[r3], %[r6] \n\t"
"mul %[r2], %[r3], %[r2] \n\t"
"addiu %[cosptr], %[cosptr], 2 \n\t"
"addiu %[sinptr], %[sinptr], 2 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r7], %[r7], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r7], %[r7], 0x2000 \n\t"
"sra %[r7], %[r7], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r9], %[r9], 2 \n\t"
"addu %[r9], %[r7], %[r9] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r6], %[r6], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r6], %[r6], 0x2000 \n\t"
"sra %[r6], %[r6], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r2], %[r2], 2 \n\t"
"addu %[r2], %[r6], %[r2] \n\t"
"subu %[r8], %[r8], %[r9] \n\t"
"sra %[r8], %[r8], 9 \n\t"
"addu %[r2], %[r4], %[r2] \n\t"
"sra %[r2], %[r2], 9 \n\t"
"sh %[r8], 0(%[tmpre]) \n\t"
"sh %[r2], 0(%[tmpim]) \n\t"
"andi %[r4], %[r1], 0xFFFF \n\t"
"sra %[r1], %[r1], 16 \n\t"
"andi %[r6], %[r0], 0xFFFF \n\t"
"sra %[r0], %[r0], 16 \n\t"
"mul %[r7], %[r5], %[r4] \n\t"
"mul %[r9], %[r5], %[r1] \n\t"
"mul %[r4], %[r3], %[r4] \n\t"
"mul %[r1], %[r3], %[r1] \n\t"
"mul %[r8], %[r3], %[r0] \n\t"
"mul %[r3], %[r3], %[r6] \n\t"
"mul %[r6], %[r5], %[r6] \n\t"
"mul %[r0], %[r5], %[r0] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r7], %[r7], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r7], %[r7], 0x2000 \n\t"
"sra %[r7], %[r7], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r9], %[r9], 2 \n\t"
"addu %[r9], %[r9], %[r7] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r4], %[r4], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r4], %[r4], 0x2000 \n\t"
"sra %[r4], %[r4], 14 \n\t"
#endif
"sll %[r1], %[r1], 2 \n\t"
"addu %[r1], %[r1], %[r4] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r3], %[r3], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r3], %[r3], 0x2000 \n\t"
"sra %[r3], %[r3], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r8], %[r8], 2 \n\t"
"addu %[r8], %[r8], %[r3] \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r6], %[r6], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r6], %[r6], 0x2000 \n\t"
"sra %[r6], %[r6], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"sll %[r0], %[r0], 2 \n\t"
"addu %[r0], %[r0], %[r6] \n\t"
"addu %[r3], %[tmpre], %[offset] \n\t"
"addu %[r2], %[tmpim], %[offset] \n\t"
"addu %[r9], %[r9], %[r8] \n\t"
"negu %[r9], %[r9] \n\t"
"sra %[r9], %[r9], 9 \n\t"
"subu %[r0], %[r0], %[r1] \n\t"
"sra %[r0], %[r0], 9 \n\t"
"addiu %[offset], %[offset], -4 \n\t"
"sh %[r9], 0(%[r3]) \n\t"
"sh %[r0], 0(%[r2]) \n\t"
"addiu %[tmpre], %[tmpre], 2 \n\t"
"bgtz %[k], 2b \n\t"
" addiu %[tmpim], %[tmpim], 2 \n\t"
"3: \n\t"
".set pop \n\t"
: [inre1] "=&r" (inre1), [inre2] "=&r" (inre2), [tmpre] "=&r" (tmpre),
[tmpim] "=&r" (tmpim), [offset] "+r" (factor), [k] "+r" (k),
[r0] "=&r" (r0), [r1] "=&r" (r1), [r2] "=&r" (r2), [r3] "=&r" (r3),
[r4] "=&r" (r4), [r5] "=&r" (r5), [r6] "=&r" (r6), [r7] "=&r" (r7),
[r8] "=&r" (r8), [r9] "=&r" (r9), [max1] "=&r" (max1)
: [inre1Q9] "r" (inre1Q9), [inre2Q9] "r" (inre2Q9),
[outreQ7] "r" (outreQ7), [outimQ7] "r" (outimQ7),
[max] "r" (max), [cosptr] "r" (cosptr), [sinptr] "r" (sinptr)
: "hi", "lo", "memory"
);
}
void WebRtcIsacfix_Spec2TimeMIPS(int16_t *inreQ7,
int16_t *inimQ7,
int32_t *outre1Q16,
int32_t *outre2Q16) {
int k = FRAMESAMPLES / 4;
int16_t* inre;
int16_t* inim;
int32_t* outre1;
int32_t* outre2;
int16_t* cosptr = (int16_t*)WebRtcIsacfix_kCosTab2;
int16_t* sinptr = (int16_t*)WebRtcIsacfix_kSinTab2;
int32_t r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, max, max1;
#if defined(MIPS_DSP_R1_LE)
int32_t offset = FRAMESAMPLES - 4;
#else // #if defined(MIPS_DSP_R1_LE)
int32_t offset = FRAMESAMPLES - 2;
#endif // #if defined(MIPS_DSP_R1_LE)
__asm __volatile (
".set push \n\t"
".set noreorder \n\t"
"addiu %[inre], %[inreQ7], 0 \n\t"
"addiu %[inim] , %[inimQ7], 0 \n\t"
"addiu %[outre1], %[outre1Q16], 0 \n\t"
"addiu %[outre2], %[outre2Q16], 0 \n\t"
"mul %[max], $zero, $zero \n\t"
"1: \n\t"
#if defined(MIPS_DSP_R1_LE)
// Process two samples in one iteration avoiding left shift before
// multiplication. MaxAbsValueW32 function inlined into the loop.
"addu %[r8], %[inre], %[offset] \n\t"
"addu %[r9], %[inim], %[offset] \n\t"
"lwl %[r4], 0(%[r8]) \n\t"
"lwl %[r5], 0(%[r9]) \n\t"
"lwl %[r0], 0(%[inre]) \n\t"
"lwl %[r1], 0(%[inim]) \n\t"
"lwl %[r2], 0(%[cosptr]) \n\t"
"lwl %[r3], 0(%[sinptr]) \n\t"
"lwr %[r4], 0(%[r8]) \n\t"
"lwr %[r5], 0(%[r9]) \n\t"
"lwr %[r0], 0(%[inre]) \n\t"
"lwr %[r1], 0(%[inim]) \n\t"
"lwr %[r2], 0(%[cosptr]) \n\t"
"lwr %[r3], 0(%[sinptr]) \n\t"
"packrl.ph %[r4], %[r4], %[r4] \n\t"
"packrl.ph %[r5], %[r5], %[r5] \n\t"
"muleq_s.w.phr %[r6], %[r0], %[r2] \n\t"
"muleq_s.w.phr %[r7], %[r1], %[r3] \n\t"
"muleq_s.w.phr %[r8], %[r4], %[r2] \n\t"
"muleq_s.w.phr %[r9], %[r5], %[r3] \n\t"
"addiu %[k], %[k], -2 \n\t"
"addiu %[cosptr], %[cosptr], 4 \n\t"
"addiu %[sinptr], %[sinptr], 4 \n\t"
"addiu %[inre], %[inre], 4 \n\t"
"addiu %[inim], %[inim], 4 \n\t"
"shra_r.w %[r6], %[r6], 6 \n\t"
"shra_r.w %[r7], %[r7], 6 \n\t"
"shra_r.w %[r8], %[r8], 6 \n\t"
"shra_r.w %[r9], %[r9], 6 \n\t"
"addu %[r6], %[r6], %[r7] \n\t"
"subu %[r9], %[r9], %[r8] \n\t"
"subu %[r7], %[r6], %[r9] \n\t"
"addu %[r6], %[r6], %[r9] \n\t"
"sll %[r10], %[offset], 1 \n\t"
"addu %[r10], %[outre1], %[r10] \n\t"
"sw %[r7], 0(%[outre1]) \n\t"
"absq_s.w %[r7], %[r7] \n\t"
"sw %[r6], 4(%[r10]) \n\t"
"absq_s.w %[r6], %[r6] \n\t"
"slt %[r8], %[max], %[r7] \n\t"
"movn %[max], %[r7], %[r8] \n\t"
"slt %[r8], %[max], %[r6] \n\t"
"movn %[max], %[r6], %[r8] \n\t"
"muleq_s.w.phl %[r6], %[r0], %[r2] \n\t"
"muleq_s.w.phl %[r7], %[r1], %[r3] \n\t"
"muleq_s.w.phl %[r8], %[r4], %[r2] \n\t"
"muleq_s.w.phl %[r9], %[r5], %[r3] \n\t"
"shra_r.w %[r6], %[r6], 6 \n\t"
"shra_r.w %[r7], %[r7], 6 \n\t"
"shra_r.w %[r8], %[r8], 6 \n\t"
"shra_r.w %[r9], %[r9], 6 \n\t"
"addu %[r6], %[r6], %[r7] \n\t"
"subu %[r9], %[r9], %[r8] \n\t"
"subu %[r7], %[r6], %[r9] \n\t"
"addu %[r6], %[r6], %[r9] \n\t"
"sw %[r7], 4(%[outre1]) \n\t"
"absq_s.w %[r7], %[r7] \n\t"
"sw %[r6], 0(%[r10]) \n\t"
"absq_s.w %[r6], %[r6] \n\t"
"slt %[r8], %[max], %[r7] \n\t"
"movn %[max], %[r7], %[r8] \n\t"
"slt %[r8], %[max], %[r6] \n\t"
"movn %[max], %[r6], %[r8] \n\t"
"muleq_s.w.phr %[r6], %[r1], %[r2] \n\t"
"muleq_s.w.phr %[r7], %[r0], %[r3] \n\t"
"muleq_s.w.phr %[r8], %[r5], %[r2] \n\t"
"muleq_s.w.phr %[r9], %[r4], %[r3] \n\t"
"addiu %[outre1], %[outre1], 8 \n\t"
"shra_r.w %[r6], %[r6], 6 \n\t"
"shra_r.w %[r7], %[r7], 6 \n\t"
"shra_r.w %[r8], %[r8], 6 \n\t"
"shra_r.w %[r9], %[r9], 6 \n\t"
"subu %[r6], %[r6], %[r7] \n\t"
"addu %[r9], %[r9], %[r8] \n\t"
"subu %[r7], %[r6], %[r9] \n\t"
"addu %[r6], %[r9], %[r6] \n\t"
"negu %[r6], %[r6] \n\t"
"sll %[r10], %[offset], 1 \n\t"
"addu %[r10], %[outre2], %[r10] \n\t"
"sw %[r7], 0(%[outre2]) \n\t"
"absq_s.w %[r7], %[r7] \n\t"
"sw %[r6], 4(%[r10]) \n\t"
"absq_s.w %[r6], %[r6] \n\t"
"slt %[r8], %[max], %[r7] \n\t"
"movn %[max], %[r7], %[r8] \n\t"
"slt %[r8], %[max], %[r6] \n\t"
"movn %[max], %[r6], %[r8] \n\t"
"muleq_s.w.phl %[r6], %[r1], %[r2] \n\t"
"muleq_s.w.phl %[r7], %[r0], %[r3] \n\t"
"muleq_s.w.phl %[r8], %[r5], %[r2] \n\t"
"muleq_s.w.phl %[r9], %[r4], %[r3] \n\t"
"addiu %[offset], %[offset], -8 \n\t"
"shra_r.w %[r6], %[r6], 6 \n\t"
"shra_r.w %[r7], %[r7], 6 \n\t"
"shra_r.w %[r8], %[r8], 6 \n\t"
"shra_r.w %[r9], %[r9], 6 \n\t"
"subu %[r6], %[r6], %[r7] \n\t"
"addu %[r9], %[r9], %[r8] \n\t"
"subu %[r7], %[r6], %[r9] \n\t"
"addu %[r6], %[r9], %[r6] \n\t"
"negu %[r6], %[r6] \n\t"
"sw %[r7], 4(%[outre2]) \n\t"
"absq_s.w %[r7], %[r7] \n\t"
"sw %[r6], 0(%[r10]) \n\t"
"absq_s.w %[r6], %[r6] \n\t"
"slt %[r8], %[max], %[r7] \n\t"
"movn %[max], %[r7], %[r8] \n\t"
"slt %[r8], %[max], %[r6] \n\t"
"movn %[max], %[r6], %[r8] \n\t"
"bgtz %[k], 1b \n\t"
" addiu %[outre2], %[outre2], 8 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"lh %[r0], 0(%[inre]) \n\t"
"lh %[r1], 0(%[inim]) \n\t"
"lh %[r4], 0(%[cosptr]) \n\t"
"lh %[r5], 0(%[sinptr]) \n\t"
"addiu %[k], %[k], -1 \n\t"
"mul %[r2], %[r0], %[r4] \n\t"
"mul %[r0], %[r0], %[r5] \n\t"
"mul %[r3], %[r1], %[r5] \n\t"
"mul %[r1], %[r1], %[r4] \n\t"
"addiu %[cosptr], %[cosptr], 2 \n\t"
"addiu %[sinptr], %[sinptr], 2 \n\t"
"addu %[r8], %[inre], %[offset] \n\t"
"addu %[r9], %[inim], %[offset] \n\t"
"addiu %[r2], %[r2], 16 \n\t"
"sra %[r2], %[r2], 5 \n\t"
"addiu %[r0], %[r0], 16 \n\t"
"sra %[r0], %[r0], 5 \n\t"
"addiu %[r3], %[r3], 16 \n\t"
"sra %[r3], %[r3], 5 \n\t"
"lh %[r6], 0(%[r8]) \n\t"
"lh %[r7], 0(%[r9]) \n\t"
"addiu %[r1], %[r1], 16 \n\t"
"sra %[r1], %[r1], 5 \n\t"
"mul %[r8], %[r7], %[r4] \n\t"
"mul %[r7], %[r7], %[r5] \n\t"
"mul %[r9], %[r6], %[r4] \n\t"
"mul %[r6], %[r6], %[r5] \n\t"
"addu %[r2], %[r2], %[r3] \n\t"
"subu %[r1], %[r1], %[r0] \n\t"
"sll %[r0], %[offset], 1 \n\t"
"addu %[r4], %[outre1], %[r0] \n\t"
"addu %[r5], %[outre2], %[r0] \n\t"
"addiu %[r8], %[r8], 16 \n\t"
"sra %[r8], %[r8], 5 \n\t"
"addiu %[r7], %[r7], 16 \n\t"
"sra %[r7], %[r7], 5 \n\t"
"addiu %[r6], %[r6], 16 \n\t"
"sra %[r6], %[r6], 5 \n\t"
"addiu %[r9], %[r9], 16 \n\t"
"sra %[r9], %[r9], 5 \n\t"
"addu %[r8], %[r8], %[r6] \n\t"
"negu %[r8], %[r8] \n\t"
"subu %[r7], %[r7], %[r9] \n\t"
"subu %[r6], %[r2], %[r7] \n\t"
"addu %[r0], %[r2], %[r7] \n\t"
"addu %[r3], %[r1], %[r8] \n\t"
"subu %[r1], %[r8], %[r1] \n\t"
"sw %[r6], 0(%[outre1]) \n\t"
"sw %[r0], 0(%[r4]) \n\t"
"sw %[r3], 0(%[outre2]) \n\t"
"sw %[r1], 0(%[r5]) \n\t"
"addiu %[outre1], %[outre1], 4 \n\t"
"addiu %[offset], %[offset], -4 \n\t"
"addiu %[inre], %[inre], 2 \n\t"
"addiu %[inim], %[inim], 2 \n\t"
// Inlined WebRtcSpl_MaxAbsValueW32
"negu %[r5], %[r6] \n\t"
"slt %[r2], %[r6], $zero \n\t"
"movn %[r6], %[r5], %[r2] \n\t"
"negu %[r5], %[r0] \n\t"
"slt %[r2], %[r0], $zero \n\t"
"movn %[r0], %[r5], %[r2] \n\t"
"negu %[r5], %[r3] \n\t"
"slt %[r2], %[r3], $zero \n\t"
"movn %[r3], %[r5], %[r2] \n\t"
"negu %[r5], %[r1] \n\t"
"slt %[r2], %[r1], $zero \n\t"
"movn %[r1], %[r5], %[r2] \n\t"
"slt %[r2], %[r6], %[r0] \n\t"
"slt %[r5], %[r3], %[r1] \n\t"
"movn %[r6], %[r0], %[r2] \n\t"
"movn %[r3], %[r1], %[r5] \n\t"
"slt %[r2], %[r6], %[r3] \n\t"
"movn %[r6], %[r3], %[r2] \n\t"
"slt %[r2], %[max], %[r6] \n\t"
"movn %[max], %[r6], %[r2] \n\t"
"bgtz %[k], 1b \n\t"
" addiu %[outre2], %[outre2], 4 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"clz %[max], %[max] \n\t"
"addiu %[max], %[max], -25 \n\t"
".set pop \n\t"
: [inre] "=&r" (inre), [inim] "=&r" (inim),
[outre1] "=&r" (outre1), [outre2] "=&r" (outre2),
[offset] "+r" (offset), [k] "+r" (k), [r0] "=&r" (r0),
[r1] "=&r" (r1), [r2] "=&r" (r2), [r3] "=&r" (r3),
[r4] "=&r" (r4), [r5] "=&r" (r5), [r6] "=&r" (r6),
[r7] "=&r" (r7), [r10] "=&r" (r10),
[r8] "=&r" (r8), [r9] "=&r" (r9), [max] "=&r" (max)
: [inreQ7] "r" (inreQ7), [inimQ7] "r" (inimQ7),
[cosptr] "r" (cosptr), [sinptr] "r" (sinptr),
[outre1Q16] "r" (outre1Q16), [outre2Q16] "r" (outre2Q16)
: "hi", "lo", "memory"
);
// "Fastest" vectors
k = FRAMESAMPLES / 4;
__asm __volatile (
".set push \n\t"
".set noreorder \n\t"
"addiu %[inre], %[inreQ7], 0 \n\t"
"addiu %[inim], %[inimQ7], 0 \n\t"
"addiu %[outre1], %[outre1Q16], 0 \n\t"
"addiu %[outre2], %[outre2Q16], 0 \n\t"
"bltz %[max], 2f \n\t"
" subu %[max1], $zero, %[max] \n\t"
"1: \n\t"
"lw %[r0], 0(%[outre1]) \n\t"
"lw %[r1], 0(%[outre2]) \n\t"
"lw %[r2], 4(%[outre1]) \n\t"
"lw %[r3], 4(%[outre2]) \n\t"
"sllv %[r0], %[r0], %[max] \n\t"
"sllv %[r1], %[r1], %[max] \n\t"
"sllv %[r2], %[r2], %[max] \n\t"
"sllv %[r3], %[r3], %[max] \n\t"
"addiu %[k], %[k], -1 \n\t"
"addiu %[outre1], %[outre1], 8 \n\t"
"addiu %[outre2], %[outre2], 8 \n\t"
"sh %[r0], 0(%[inre]) \n\t"
"sh %[r1], 0(%[inim]) \n\t"
"sh %[r2], 2(%[inre]) \n\t"
"sh %[r3], 2(%[inim]) \n\t"
"addiu %[inre], %[inre], 4 \n\t"
"bgtz %[k], 1b \n\t"
" addiu %[inim], %[inim], 4 \n\t"
"b 4f \n\t"
" nop \n\t"
"2: \n\t"
#if !defined(MIPS_DSP_R1_LE)
"addiu %[r4], $zero, 1 \n\t"
"addiu %[r5], %[max1], -1 \n\t"
"sllv %[r4], %[r4], %[r5] \n\t"
#endif // #if !defined(MIPS_DSP_R1_LE)
"3: \n\t"
"lw %[r0], 0(%[outre1]) \n\t"
"lw %[r1], 0(%[outre2]) \n\t"
"lw %[r2], 4(%[outre1]) \n\t"
"lw %[r3], 4(%[outre2]) \n\t"
#if defined(MIPS_DSP_R1_LE)
"shrav_r.w %[r0], %[r0], %[max1] \n\t"
"shrav_r.w %[r1], %[r1], %[max1] \n\t"
"shrav_r.w %[r2], %[r2], %[max1] \n\t"
"shrav_r.w %[r3], %[r3], %[max1] \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addu %[r0], %[r0], %[r4] \n\t"
"addu %[r1], %[r1], %[r4] \n\t"
"addu %[r2], %[r2], %[r4] \n\t"
"addu %[r3], %[r3], %[r4] \n\t"
"srav %[r0], %[r0], %[max1] \n\t"
"srav %[r1], %[r1], %[max1] \n\t"
"srav %[r2], %[r2], %[max1] \n\t"
"srav %[r3], %[r3], %[max1] \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addiu %[outre1], %[outre1], 8 \n\t"
"addiu %[outre2], %[outre2], 8 \n\t"
"sh %[r0], 0(%[inre]) \n\t"
"sh %[r1], 0(%[inim]) \n\t"
"sh %[r2], 2(%[inre]) \n\t"
"sh %[r3], 2(%[inim]) \n\t"
"addiu %[k], %[k], -1 \n\t"
"addiu %[inre], %[inre], 4 \n\t"
"bgtz %[k], 3b \n\t"
" addiu %[inim], %[inim], 4 \n\t"
"4: \n\t"
".set pop \n\t"
: [k] "+r" (k), [max1] "=&r" (max1), [r0] "=&r" (r0),
[inre] "=&r" (inre), [inim] "=&r" (inim),
[outre1] "=&r" (outre1), [outre2] "=&r" (outre2),
#if !defined(MIPS_DSP_R1_LE)
[r4] "=&r" (r4), [r5] "=&r" (r5),
#endif // #if !defined(MIPS_DSP_R1_LE)
[r1] "=&r" (r1), [r2] "=&r" (r2), [r3] "=&r" (r3)
: [max] "r" (max), [inreQ7] "r" (inreQ7),
[inimQ7] "r" (inimQ7), [outre1Q16] "r" (outre1Q16),
[outre2Q16] "r" (outre2Q16)
: "memory"
);
WebRtcIsacfix_FftRadix16Fastest(inreQ7, inimQ7, 1); // real call
// All the remaining processing is done inside a single loop to avoid
// unnecessary memory accesses. MIPS DSPr2 version processes two samples
// at a time.
cosptr = (int16_t*)WebRtcIsacfix_kCosTab1;
sinptr = (int16_t*)WebRtcIsacfix_kSinTab1;
k = FRAMESAMPLES / 2;
__asm __volatile (
".set push \n\t"
".set noreorder \n\t"
"addiu %[inre], %[inreQ7], 0 \n\t"
"addiu %[inim], %[inimQ7], 0 \n\t"
"addiu %[outre1], %[outre1Q16], 0 \n\t"
"addiu %[outre2], %[outre2Q16], 0 \n\t"
"addiu %[r4], $zero, 273 \n\t"
"addiu %[r5], $zero, 31727 \n\t"
#if defined(MIPS_DSP_R2_LE)
"addiu %[max], %[max], 16 \n\t"
"replv.ph %[r4], %[r4] \n\t"
#endif // #if defined(MIPS_DSP_R2_LE)
"bltz %[max], 2f \n\t"
" subu %[max1], $zero, %[max] \n\t"
#if defined(MIPS_DSP_R2_LE)
"addiu %[max], %[max], 1 \n\t"
#endif // #if defined(MIPS_DSP_R2_LE)
"1: \n\t"
#if defined(MIPS_DSP_R2_LE)
"lwl %[r0], 0(%[inre]) \n\t"
"lwl %[r1], 0(%[inim]) \n\t"
"lh %[r2], 0(%[cosptr]) \n\t"
"lwr %[r0], 0(%[inre]) \n\t"
"lwr %[r1], 0(%[inim]) \n\t"
"lh %[r3], 0(%[sinptr]) \n\t"
"muleq_s.w.phr %[r6], %[r0], %[r4] \n\t"
"muleq_s.w.phr %[r7], %[r1], %[r4] \n\t"
"muleq_s.w.phl %[r0], %[r0], %[r4] \n\t"
"muleq_s.w.phl %[r1], %[r1], %[r4] \n\t"
"addiu %[k], %[k], -2 \n\t"
"addiu %[inre], %[inre], 4 \n\t"
"addiu %[inim], %[inim], 4 \n\t"
"shrav_r.w %[r6], %[r6], %[max] \n\t"
"shrav_r.w %[r7], %[r7], %[max] \n\t"
"mult $ac0, %[r2], %[r6] \n\t"
"mult $ac1, %[r3], %[r7] \n\t"
"mult $ac2, %[r2], %[r7] \n\t"
"mult $ac3, %[r3], %[r6] \n\t"
"lh %[r2], 2(%[cosptr]) \n\t"
"lh %[r3], 2(%[sinptr]) \n\t"
"extr_r.w %[r6], $ac0, 14 \n\t"
"extr_r.w %[r7], $ac1, 14 \n\t"
"extr_r.w %[r8], $ac2, 14 \n\t"
"extr_r.w %[r9], $ac3, 14 \n\t"
"shrav_r.w %[r0], %[r0], %[max] \n\t"
"shrav_r.w %[r1], %[r1], %[max] \n\t"
"mult $ac0, %[r2], %[r0] \n\t"
"mult $ac1, %[r3], %[r1] \n\t"
"mult $ac2, %[r2], %[r1] \n\t"
"mult $ac3, %[r3], %[r0] \n\t"
"addiu %[cosptr], %[cosptr], 4 \n\t"
"extr_r.w %[r0], $ac0, 14 \n\t"
"extr_r.w %[r1], $ac1, 14 \n\t"
"extr_r.w %[r2], $ac2, 14 \n\t"
"extr_r.w %[r3], $ac3, 14 \n\t"
"subu %[r6], %[r6], %[r7] \n\t"
"addu %[r8], %[r8], %[r9] \n\t"
"mult $ac0, %[r5], %[r6] \n\t"
"mult $ac1, %[r5], %[r8] \n\t"
"addiu %[sinptr], %[sinptr], 4 \n\t"
"subu %[r0], %[r0], %[r1] \n\t"
"addu %[r2], %[r2], %[r3] \n\t"
"extr_r.w %[r1], $ac0, 11 \n\t"
"extr_r.w %[r3], $ac1, 11 \n\t"
"mult $ac2, %[r5], %[r0] \n\t"
"mult $ac3, %[r5], %[r2] \n\t"
"sw %[r1], 0(%[outre1]) \n\t"
"sw %[r3], 0(%[outre2]) \n\t"
"addiu %[outre1], %[outre1], 8 \n\t"
"extr_r.w %[r0], $ac2, 11 \n\t"
"extr_r.w %[r2], $ac3, 11 \n\t"
"sw %[r0], -4(%[outre1]) \n\t"
"sw %[r2], 4(%[outre2]) \n\t"
"bgtz %[k], 1b \n\t"
" addiu %[outre2], %[outre2], 8 \n\t"
"b 3f \n\t"
#else // #if defined(MIPS_DSP_R2_LE)
"lh %[r0], 0(%[inre]) \n\t"
"lh %[r1], 0(%[inim]) \n\t"
"addiu %[k], %[k], -1 \n\t"
"srav %[r0], %[r0], %[max] \n\t"
"srav %[r1], %[r1], %[max] \n\t"
"sra %[r2], %[r0], 16 \n\t"
"andi %[r0], %[r0], 0xFFFF \n\t"
"sra %[r0], %[r0], 1 \n\t"
"sra %[r3], %[r1], 16 \n\t"
"andi %[r1], %[r1], 0xFFFF \n\t"
"sra %[r1], %[r1], 1 \n\t"
"mul %[r2], %[r2], %[r4] \n\t"
"mul %[r0], %[r0], %[r4] \n\t"
"mul %[r3], %[r3], %[r4] \n\t"
"mul %[r1], %[r1], %[r4] \n\t"
"addiu %[inre], %[inre], 2 \n\t"
"addiu %[inim], %[inim], 2 \n\t"
"lh %[r6], 0(%[cosptr]) \n\t"
"lh %[r7], 0(%[sinptr]) \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r0], %[r0], 15 \n\t"
"shra_r.w %[r1], %[r1], 15 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r0], %[r0], 0x4000 \n\t"
"addiu %[r1], %[r1], 0x4000 \n\t"
"sra %[r0], %[r0], 15 \n\t"
"sra %[r1], %[r1], 15 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r0], %[r2], %[r0] \n\t"
"addu %[r1], %[r3], %[r1] \n\t"
"sra %[r2], %[r0], 16 \n\t"
"andi %[r0], %[r0], 0xFFFF \n\t"
"mul %[r9], %[r2], %[r6] \n\t"
"mul %[r2], %[r2], %[r7] \n\t"
"mul %[r8], %[r0], %[r6] \n\t"
"mul %[r0], %[r0], %[r7] \n\t"
"sra %[r3], %[r3], 16 \n\t"
"andi %[r1], %[r1], 0xFFFF \n\t"
"sll %[r9], %[r9], 2 \n\t"
"sll %[r2], %[r2], 2 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r8], %[r8], 14 \n\t"
"shra_r.w %[r0], %[r0], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r8], %[r8], 0x2000 \n\t"
"addiu %[r0], %[r0], 0x2000 \n\t"
"sra %[r8], %[r8], 14 \n\t"
"sra %[r0], %[r0], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r9], %[r9], %[r8] \n\t"
"addu %[r2], %[r2], %[r0] \n\t"
"mul %[r0], %[r3], %[r6] \n\t"
"mul %[r3], %[r3], %[r7] \n\t"
"mul %[r8], %[r1], %[r6] \n\t"
"mul %[r1], %[r1], %[r8] \n\t"
"addiu %[cosptr], %[cosptr], 2 \n\t"
"addiu %[sinptr], %[sinptr], 2 \n\t"
"sll %[r0], %[r0], 2 \n\t"
"sll %[r3], %[r3], 2 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r8], %[r8], 14 \n\t"
"shra_r.w %[r1], %[r1], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r8], %[r8], 0x2000 \n\t"
"addiu %[r1], %[r1], 0x2000 \n\t"
"sra %[r8], %[r8], 14 \n\t"
"sra %[r1], %[r1], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r0], %[r0], %[r8] \n\t"
"addu %[r3], %[r3], %[r1] \n\t"
"subu %[r9], %[r9], %[r3] \n\t"
"addu %[r0], %[r0], %[r2] \n\t"
"sra %[r1], %[r9], 16 \n\t"
"andi %[r9], %[r9], 0xFFFF \n\t"
"mul %[r1], %[r1], %[r5] \n\t"
"mul %[r9], %[r9], %[r5] \n\t"
"sra %[r2], %[r0], 16 \n\t"
"andi %[r0], %[r0], 0xFFFF \n\t"
"mul %[r2], %[r2], %[r5] \n\t"
"mul %[r0], %[r0], %[r5] \n\t"
"sll %[r1], %[r1], 5 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r9], %[r9], 11 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r9], %[r9], 0x400 \n\t"
"sra %[r9], %[r9], 11 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r1], %[r1], %[r9] \n\t"
"sll %[r2], %[r2], 5 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r0], %[r0], 11 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r0], %[r0], 0x400 \n\t"
"sra %[r0], %[r0], 11 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r0], %[r0], %[r2] \n\t"
"sw %[r1], 0(%[outre1]) \n\t"
"addiu %[outre1], %[outre1], 4 \n\t"
"sw %[r0], 0(%[outre2]) \n\t"
"bgtz %[k], 1b \n\t"
" addiu %[outre2], %[outre2], 4 \n\t"
"b 3f \n\t"
" nop \n\t"
#endif // #if defined(MIPS_DSP_R2_LE)
"2: \n\t"
#if defined(MIPS_DSP_R2_LE)
"addiu %[max1], %[max1], -1 \n\t"
"21: \n\t"
"lwl %[r0], 0(%[inre]) \n\t"
"lwl %[r1], 0(%[inim]) \n\t"
"lh %[r2], 0(%[cosptr]) \n\t"
"lwr %[r0], 0(%[inre]) \n\t"
"lwr %[r1], 0(%[inim]) \n\t"
"lh %[r3], 0(%[sinptr]) \n\t"
"muleq_s.w.phr %[r6], %[r0], %[r4] \n\t"
"muleq_s.w.phr %[r7], %[r1], %[r4] \n\t"
"muleq_s.w.phl %[r0], %[r0], %[r4] \n\t"
"muleq_s.w.phl %[r1], %[r1], %[r4] \n\t"
"addiu %[k], %[k], -2 \n\t"
"addiu %[inre], %[inre], 4 \n\t"
"addiu %[inim], %[inim], 4 \n\t"
"sllv %[r6], %[r6], %[max1] \n\t"
"sllv %[r7], %[r7], %[max1] \n\t"
"mult $ac0, %[r2], %[r6] \n\t"
"mult $ac1, %[r3], %[r7] \n\t"
"mult $ac2, %[r2], %[r7] \n\t"
"mult $ac3, %[r3], %[r6] \n\t"
"lh %[r2], 2(%[cosptr]) \n\t"
"lh %[r3], 2(%[sinptr]) \n\t"
"extr_r.w %[r6], $ac0, 14 \n\t"
"extr_r.w %[r7], $ac1, 14 \n\t"
"extr_r.w %[r8], $ac2, 14 \n\t"
"extr_r.w %[r9], $ac3, 14 \n\t"
"sllv %[r0], %[r0], %[max1] \n\t"
"sllv %[r1], %[r1], %[max1] \n\t"
"mult $ac0, %[r2], %[r0] \n\t"
"mult $ac1, %[r3], %[r1] \n\t"
"mult $ac2, %[r2], %[r1] \n\t"
"mult $ac3, %[r3], %[r0] \n\t"
"addiu %[cosptr], %[cosptr], 4 \n\t"
"extr_r.w %[r0], $ac0, 14 \n\t"
"extr_r.w %[r1], $ac1, 14 \n\t"
"extr_r.w %[r2], $ac2, 14 \n\t"
"extr_r.w %[r3], $ac3, 14 \n\t"
"subu %[r6], %[r6], %[r7] \n\t"
"addu %[r8], %[r8], %[r9] \n\t"
"mult $ac0, %[r5], %[r6] \n\t"
"mult $ac1, %[r5], %[r8] \n\t"
"addiu %[sinptr], %[sinptr], 4 \n\t"
"subu %[r0], %[r0], %[r1] \n\t"
"addu %[r2], %[r2], %[r3] \n\t"
"extr_r.w %[r1], $ac0, 11 \n\t"
"extr_r.w %[r3], $ac1, 11 \n\t"
"mult $ac2, %[r5], %[r0] \n\t"
"mult $ac3, %[r5], %[r2] \n\t"
"sw %[r1], 0(%[outre1]) \n\t"
"sw %[r3], 0(%[outre2]) \n\t"
"addiu %[outre1], %[outre1], 8 \n\t"
"extr_r.w %[r0], $ac2, 11 \n\t"
"extr_r.w %[r2], $ac3, 11 \n\t"
"sw %[r0], -4(%[outre1]) \n\t"
"sw %[r2], 4(%[outre2]) \n\t"
"bgtz %[k], 21b \n\t"
" addiu %[outre2], %[outre2], 8 \n\t"
"b 3f \n\t"
" nop \n\t"
#else // #if defined(MIPS_DSP_R2_LE)
"lh %[r0], 0(%[inre]) \n\t"
"lh %[r1], 0(%[inim]) \n\t"
"addiu %[k], %[k], -1 \n\t"
"sllv %[r0], %[r0], %[max1] \n\t"
"sllv %[r1], %[r1], %[max1] \n\t"
"sra %[r2], %[r0], 16 \n\t"
"andi %[r0], %[r0], 0xFFFF \n\t"
"sra %[r0], %[r0], 1 \n\t"
"sra %[r3], %[r1], 16 \n\t"
"andi %[r1], %[r1], 0xFFFF \n\t"
"sra %[r1], %[r1], 1 \n\t"
"mul %[r2], %[r2], %[r4] \n\t"
"mul %[r0], %[r0], %[r4] \n\t"
"mul %[r3], %[r3], %[r4] \n\t"
"mul %[r1], %[r1], %[r4] \n\t"
"addiu %[inre], %[inre], 2 \n\t"
"addiu %[inim], %[inim], 2 \n\t"
"lh %[r6], 0(%[cosptr]) \n\t"
"lh %[r7], 0(%[sinptr]) \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r0], %[r0], 15 \n\t"
"shra_r.w %[r1], %[r1], 15 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r0], %[r0], 0x4000 \n\t"
"addiu %[r1], %[r1], 0x4000 \n\t"
"sra %[r0], %[r0], 15 \n\t"
"sra %[r1], %[r1], 15 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r0], %[r2], %[r0] \n\t"
"addu %[r1], %[r3], %[r1] \n\t"
"sra %[r2], %[r0], 16 \n\t"
"andi %[r0], %[r0], 0xFFFF \n\t"
"mul %[r9], %[r2], %[r6] \n\t"
"mul %[r2], %[r2], %[r7] \n\t"
"mul %[r8], %[r0], %[r6] \n\t"
"mul %[r0], %[r0], %[r7] \n\t"
"sra %[r3], %[r1], 16 \n\t"
"andi %[r1], %[r1], 0xFFFF \n\t"
"sll %[r9], %[r9], 2 \n\t"
"sll %[r2], %[r2], 2 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r8], %[r8], 14 \n\t"
"shra_r.w %[r0], %[r0], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r8], %[r8], 0x2000 \n\t"
"addiu %[r0], %[r0], 0x2000 \n\t"
"sra %[r8], %[r8], 14 \n\t"
"sra %[r0], %[r0], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r9], %[r9], %[r8] \n\t"
"addu %[r2], %[r2], %[r0] \n\t"
"mul %[r0], %[r3], %[r6] \n\t"
"mul %[r3], %[r3], %[r7] \n\t"
"mul %[r8], %[r1], %[r6] \n\t"
"mul %[r1], %[r1], %[r7] \n\t"
"addiu %[cosptr], %[cosptr], 2 \n\t"
"addiu %[sinptr], %[sinptr], 2 \n\t"
"sll %[r0], %[r0], 2 \n\t"
"sll %[r3], %[r3], 2 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r8], %[r8], 14 \n\t"
"shra_r.w %[r1], %[r1], 14 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r8], %[r8], 0x2000 \n\t"
"addiu %[r1], %[r1], 0x2000 \n\t"
"sra %[r8], %[r8], 14 \n\t"
"sra %[r1], %[r1], 14 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r0], %[r0], %[r8] \n\t"
"addu %[r3], %[r3], %[r1] \n\t"
"subu %[r9], %[r9], %[r3] \n\t"
"addu %[r0], %[r0], %[r2] \n\t"
"sra %[r1], %[r9], 16 \n\t"
"andi %[r9], %[r9], 0xFFFF \n\t"
"mul %[r1], %[r1], %[r5] \n\t"
"mul %[r9], %[r9], %[r5] \n\t"
"sra %[r2], %[r0], 16 \n\t"
"andi %[r0], %[r0], 0xFFFF \n\t"
"mul %[r2], %[r2], %[r5] \n\t"
"mul %[r0], %[r0], %[r5] \n\t"
"sll %[r1], %[r1], 5 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r9], %[r9], 11 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r9], %[r9], 0x400 \n\t"
"sra %[r9], %[r9], 11 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r1], %[r1], %[r9] \n\t"
"sll %[r2], %[r2], 5 \n\t"
#if defined(MIPS_DSP_R1_LE)
"shra_r.w %[r0], %[r0], 11 \n\t"
#else // #if defined(MIPS_DSP_R1_LE)
"addiu %[r0], %[r0], 0x400 \n\t"
"sra %[r0], %[r0], 11 \n\t"
#endif // #if defined(MIPS_DSP_R1_LE)
"addu %[r0], %[r0], %[r2] \n\t"
"sw %[r1], 0(%[outre1]) \n\t"
"addiu %[outre1], %[outre1], 4 \n\t"
"sw %[r0], 0(%[outre2]) \n\t"
"bgtz %[k], 2b \n\t"
" addiu %[outre2], %[outre2], 4 \n\t"
#endif // #if defined(MIPS_DSP_R2_LE)
"3: \n\t"
".set pop \n\t"
: [k] "+r" (k), [r0] "=&r" (r0), [r1] "=&r" (r1),
[r2] "=&r" (r2), [r3] "=&r" (r3), [r4] "=&r" (r4),
[r5] "=&r" (r5), [r6] "=&r" (r6), [r7] "=&r" (r7),
[r8] "=&r" (r8), [r9] "=&r" (r9), [max1] "=&r" (max1),
[inre] "=&r" (inre), [inim] "=&r" (inim),
[outre1] "=&r" (outre1), [outre2] "=&r" (outre2)
: [max] "r" (max), [inreQ7] "r" (inreQ7),
[inimQ7] "r" (inimQ7), [cosptr] "r" (cosptr),
[sinptr] "r" (sinptr), [outre1Q16] "r" (outre1Q16),
[outre2Q16] "r" (outre2Q16)
: "hi", "lo", "memory"
#if defined(MIPS_DSP_R2_LE)
, "$ac1hi", "$ac1lo", "$ac2hi", "$ac2lo", "$ac3hi", "$ac3lo"
#endif // #if defined(MIPS_DSP_R2_LE)
);
}
|
