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FFmpeg/libavcodec/mips/mpegaudiodsp_mips_fixed.c
Vicente Olivert Riera ad16eff64b mips: add support for R6 
Understanding the mips32r6 and mips64r6 ISAs in the configure script is
not enough. In order to have full support for MIPS R6 in FFmpeg we need
to be able to build it, and for that we need to make sure we don't use
incompatible assembler code which makes the build fail. Ifdefing the
offending code is sufficient to fix the problem.

Signed-off-by: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-03-09 20:05:04 +01:00

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/*
* Copyright (c) 2012
* MIPS Technologies, Inc., California.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Author: Bojan Zivkovic (bojan@mips.com)
*
* MPEG Audio decoder optimized for MIPS fixed-point architecture
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Reference: libavcodec/mpegaudiodsp_template.c
*/
#include <string.h>
#include "libavutil/mips/asmdefs.h"
#include "libavcodec/mpegaudiodsp.h"
#if HAVE_INLINE_ASM
#if !HAVE_MIPS32R6 && !HAVE_MIPS64R6
static void ff_mpadsp_apply_window_mips_fixed(int32_t *synth_buf, int32_t *window,
int *dither_state, int16_t *samples, int incr)
{
register const int32_t *w, *w2, *p;
int j;
int16_t *samples2;
int w_asm, p_asm, w_asm1, p_asm1, w_asm2, p_asm2;
int w2_asm, w2_asm1, *p_temp1, *p_temp2;
int sum1 = 0;
int const min_asm = -32768, max_asm = 32767;
int temp1, temp2 = 0, temp3 = 0;
int64_t sum;
/* copy to avoid wrap */
memcpy(synth_buf + 512, synth_buf, 32 * sizeof(*synth_buf));
samples2 = samples + 31 * incr;
w = window;
w2 = window + 31;
sum = *dither_state;
p = synth_buf + 16;
p_temp1 = synth_buf + 16;
p_temp2 = synth_buf + 48;
temp1 = sum;
/**
* use of round_sample function from the original code is eliminated,
* changed with appropriate assembly instructions.
*/
__asm__ volatile (
"mthi $zero \n\t"
"mtlo %[temp1] \n\t"
"lw %[w_asm], 0(%[w]) \n\t"
"lw %[p_asm], 0(%[p]) \n\t"
"lw %[w_asm1], 64*4(%[w]) \n\t"
"lw %[p_asm1], 64*4(%[p]) \n\t"
"lw %[w_asm2], 128*4(%[w]) \n\t"
"lw %[p_asm2], 128*4(%[p]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"madd %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 192*4(%[w]) \n\t"
"lw %[p_asm], 192*4(%[p]) \n\t"
"lw %[w_asm1], 256*4(%[w]) \n\t"
"lw %[p_asm1], 256*4(%[p]) \n\t"
"lw %[w_asm2], 320*4(%[w]) \n\t"
"lw %[p_asm2], 320*4(%[p]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"madd %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 384*4(%[w]) \n\t"
"lw %[p_asm], 384*4(%[p]) \n\t"
"lw %[w_asm1], 448*4(%[w]) \n\t"
"lw %[p_asm1], 448*4(%[p]) \n\t"
"lw %[w_asm2], 32*4(%[w]) \n\t"
"lw %[p_asm2], 32*4(%[p]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"msub %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 96*4(%[w]) \n\t"
"lw %[p_asm], 96*4(%[p]) \n\t"
"lw %[w_asm1], 160*4(%[w]) \n\t"
"lw %[p_asm1], 160*4(%[p]) \n\t"
"lw %[w_asm2], 224*4(%[w]) \n\t"
"lw %[p_asm2], 224*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 288*4(%[w]) \n\t"
"lw %[p_asm], 288*4(%[p]) \n\t"
"lw %[w_asm1], 352*4(%[w]) \n\t"
"lw %[p_asm1], 352*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"lw %[w_asm], 480*4(%[w]) \n\t"
"lw %[p_asm], 480*4(%[p]) \n\t"
"lw %[w_asm2], 416*4(%[w]) \n\t"
"lw %[p_asm2], 416*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub %[w_asm2], %[p_asm2] \n\t"
/*round_sample function from the original code is eliminated,
* changed with appropriate assembly instructions
* code example:
"extr.w %[sum1],$ac0,24 \n\t"
"mflo %[temp3], $ac0 \n\t"
"and %[temp1], %[temp3], 0x00ffffff \n\t"
"slt %[temp2], %[sum1], %[min_asm] \n\t"
"movn %[sum1], %[min_asm],%[temp2] \n\t"
"slt %[temp2], %[max_asm],%[sum1] \n\t"
"movn %[sum1], %[max_asm],%[temp2] \n\t"
"sh %[sum1], 0(%[samples]) \n\t"
*/
"extr.w %[sum1], $ac0, 24 \n\t"
"mflo %[temp3] \n\t"
PTR_ADDIU "%[w], %[w], 4 \n\t"
"and %[temp1], %[temp3], 0x00ffffff \n\t"
"slt %[temp2], %[sum1], %[min_asm] \n\t"
"movn %[sum1], %[min_asm], %[temp2] \n\t"
"slt %[temp2], %[max_asm], %[sum1] \n\t"
"movn %[sum1], %[max_asm], %[temp2] \n\t"
"sh %[sum1], 0(%[samples]) \n\t"
: [w_asm] "=&r" (w_asm), [p_asm] "=&r" (p_asm), [w_asm1] "=&r" (w_asm1),
[p_asm1] "=&r" (p_asm1), [temp1] "+r" (temp1), [temp2] "+r" (temp2),
[w_asm2] "=&r" (w_asm2), [p_asm2] "=&r" (p_asm2),
[sum1] "+r" (sum1), [w] "+r" (w), [temp3] "+r" (temp3)
: [p] "r" (p), [samples] "r" (samples), [min_asm] "r" (min_asm),
[max_asm] "r" (max_asm)
: "memory", "hi","lo"
);
samples += incr;
/* we calculate two samples at the same time to avoid one memory
access per two sample */
for(j = 1; j < 16; j++) {
__asm__ volatile (
"mthi $0, $ac1 \n\t"
"mtlo $0, $ac1 \n\t"
"mthi $0 \n\t"
"mtlo %[temp1] \n\t"
PTR_ADDIU "%[p_temp1], %[p_temp1], 4 \n\t"
"lw %[w_asm], 0(%[w]) \n\t"
"lw %[p_asm], 0(%[p_temp1]) \n\t"
"lw %[w2_asm], 0(%[w2]) \n\t"
"lw %[w_asm1], 64*4(%[w]) \n\t"
"lw %[p_asm1], 64*4(%[p_temp1]) \n\t"
"lw %[w2_asm1], 64*4(%[w2]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 128*4(%[w]) \n\t"
"lw %[p_asm], 128*4(%[p_temp1]) \n\t"
"lw %[w2_asm], 128*4(%[w2]) \n\t"
"lw %[w_asm1], 192*4(%[w]) \n\t"
"lw %[p_asm1], 192*4(%[p_temp1]) \n\t"
"lw %[w2_asm1], 192*4(%[w2]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 256*4(%[w]) \n\t"
"lw %[p_asm], 256*4(%[p_temp1]) \n\t"
"lw %[w2_asm], 256*4(%[w2]) \n\t"
"lw %[w_asm1], 320*4(%[w]) \n\t"
"lw %[p_asm1], 320*4(%[p_temp1]) \n\t"
"lw %[w2_asm1], 320*4(%[w2]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 384*4(%[w]) \n\t"
"lw %[p_asm], 384*4(%[p_temp1]) \n\t"
"lw %[w2_asm], 384*4(%[w2]) \n\t"
"lw %[w_asm1], 448*4(%[w]) \n\t"
"lw %[p_asm1], 448*4(%[p_temp1]) \n\t"
"lw %[w2_asm1], 448*4(%[w2]) \n\t"
"madd %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"madd %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
PTR_ADDIU "%[p_temp2], %[p_temp2], -4 \n\t"
"lw %[w_asm], 32*4(%[w]) \n\t"
"lw %[p_asm], 0(%[p_temp2]) \n\t"
"lw %[w2_asm], 32*4(%[w2]) \n\t"
"lw %[w_asm1], 96*4(%[w]) \n\t"
"lw %[p_asm1], 64*4(%[p_temp2]) \n\t"
"lw %[w2_asm1], 96*4(%[w2]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 160*4(%[w]) \n\t"
"lw %[p_asm], 128*4(%[p_temp2]) \n\t"
"lw %[w2_asm], 160*4(%[w2]) \n\t"
"lw %[w_asm1], 224*4(%[w]) \n\t"
"lw %[p_asm1], 192*4(%[p_temp2]) \n\t"
"lw %[w2_asm1], 224*4(%[w2]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 288*4(%[w]) \n\t"
"lw %[p_asm], 256*4(%[p_temp2]) \n\t"
"lw %[w2_asm], 288*4(%[w2]) \n\t"
"lw %[w_asm1], 352*4(%[w]) \n\t"
"lw %[p_asm1], 320*4(%[p_temp2]) \n\t"
"lw %[w2_asm1], 352*4(%[w2]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
"lw %[w_asm], 416*4(%[w]) \n\t"
"lw %[p_asm], 384*4(%[p_temp2]) \n\t"
"lw %[w2_asm], 416*4(%[w2]) \n\t"
"lw %[w_asm1], 480*4(%[w]) \n\t"
"lw %[p_asm1], 448*4(%[p_temp2]) \n\t"
"lw %[w2_asm1], 480*4(%[w2]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub $ac1, %[w2_asm], %[p_asm] \n\t"
"msub $ac1, %[w2_asm1], %[p_asm1] \n\t"
PTR_ADDIU "%[w], %[w], 4 \n\t"
PTR_ADDIU "%[w2], %[w2], -4 \n\t"
"mflo %[temp2] \n\t"
"extr.w %[sum1], $ac0, 24 \n\t"
"li %[temp3], 1 \n\t"
"and %[temp1], %[temp2], 0x00ffffff \n\t"
"madd $ac1, %[temp1], %[temp3] \n\t"
"slt %[temp2], %[sum1], %[min_asm] \n\t"
"movn %[sum1], %[min_asm], %[temp2] \n\t"
"slt %[temp2], %[max_asm], %[sum1] \n\t"
"movn %[sum1], %[max_asm], %[temp2] \n\t"
"sh %[sum1], 0(%[samples]) \n\t"
"mflo %[temp3], $ac1 \n\t"
"extr.w %[sum1], $ac1, 24 \n\t"
"and %[temp1], %[temp3], 0x00ffffff \n\t"
"slt %[temp2], %[sum1], %[min_asm] \n\t"
"movn %[sum1], %[min_asm], %[temp2] \n\t"
"slt %[temp2], %[max_asm], %[sum1] \n\t"
"movn %[sum1], %[max_asm], %[temp2] \n\t"
"sh %[sum1], 0(%[samples2]) \n\t"
: [w_asm] "=&r" (w_asm), [p_asm] "=&r" (p_asm), [w_asm1] "=&r" (w_asm1),
[p_asm1] "=&r" (p_asm1), [w2_asm1] "=&r" (w2_asm1),
[w2_asm] "=&r" (w2_asm), [temp1] "+r" (temp1), [temp2] "+r" (temp2),
[p_temp1] "+r" (p_temp1), [p_temp2] "+r" (p_temp2), [sum1] "+r" (sum1),
[w] "+r" (w), [w2] "+r" (w2), [samples] "+r" (samples),
[samples2] "+r" (samples2), [temp3] "+r" (temp3)
: [min_asm] "r" (min_asm), [max_asm] "r" (max_asm)
: "memory", "hi", "lo", "$ac1hi", "$ac1lo"
);
samples += incr;
samples2 -= incr;
}
p = synth_buf + 32;
__asm__ volatile (
"mthi $0 \n\t"
"mtlo %[temp1] \n\t"
"lw %[w_asm], 32*4(%[w]) \n\t"
"lw %[p_asm], 0(%[p]) \n\t"
"lw %[w_asm1], 96*4(%[w]) \n\t"
"lw %[p_asm1], 64*4(%[p]) \n\t"
"lw %[w_asm2], 160*4(%[w]) \n\t"
"lw %[p_asm2], 128*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 224*4(%[w]) \n\t"
"lw %[p_asm], 192*4(%[p]) \n\t"
"lw %[w_asm1], 288*4(%[w]) \n\t"
"lw %[p_asm1], 256*4(%[p]) \n\t"
"lw %[w_asm2], 352*4(%[w]) \n\t"
"lw %[p_asm2], 320*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"msub %[w_asm2], %[p_asm2] \n\t"
"lw %[w_asm], 416*4(%[w]) \n\t"
"lw %[p_asm], 384*4(%[p]) \n\t"
"lw %[w_asm1], 480*4(%[w]) \n\t"
"lw %[p_asm1], 448*4(%[p]) \n\t"
"msub %[w_asm], %[p_asm] \n\t"
"msub %[w_asm1], %[p_asm1] \n\t"
"extr.w %[sum1], $ac0, 24 \n\t"
"mflo %[temp2] \n\t"
"and %[temp1], %[temp2], 0x00ffffff \n\t"
"slt %[temp2], %[sum1], %[min_asm] \n\t"
"movn %[sum1], %[min_asm], %[temp2] \n\t"
"slt %[temp2], %[max_asm], %[sum1] \n\t"
"movn %[sum1], %[max_asm], %[temp2] \n\t"
"sh %[sum1], 0(%[samples]) \n\t"
: [w_asm] "=&r" (w_asm), [p_asm] "=&r" (p_asm), [w_asm1] "=&r" (w_asm1),
[p_asm1] "=&r" (p_asm1), [temp1] "+r" (temp1), [temp2] "+r" (temp2),
[w_asm2] "=&r" (w_asm2), [p_asm2] "=&r" (p_asm2), [sum1] "+r" (sum1)
: [w] "r" (w), [p] "r" (p), [samples] "r" (samples), [min_asm] "r" (min_asm),
[max_asm] "r" (max_asm)
: "memory", "hi", "lo", "$ac1hi", "$ac1lo"
);
*dither_state= temp1;
}
static void imdct36_mips_fixed(int *out, int *buf, int *in, int *win)
{
int j;
int t0, t1, t2, t3, s0, s1, s2, s3;
int tmp[18], *tmp1, *in1;
/* temporary variables */
int temp_reg1, temp_reg2, temp_reg3, temp_reg4, temp_reg5, temp_reg6;
int t4, t5, t6, t8, t7;
/* values defined in macros and tables are
* eliminated - they are directly loaded in appropriate variables
*/
int const C_1 = 4229717092; /* cos(pi*1/18)*2 */
int const C_2 = 4035949074; /* cos(pi*2/18)*2 */
int const C_3 = 575416510; /* -cos(pi*3/18)*2 */
int const C_3A = 3719550786; /* cos(pi*3/18)*2 */
int const C_4 = 1004831466; /* -cos(pi*4/18)*2 */
int const C_5 = 1534215534; /* -cos(pi*5/18)*2 */
int const C_7 = -1468965330; /* -cos(pi*7/18)*2 */
int const C_8 = -745813244; /* -cos(pi*8/18)*2 */
/*
* instructions of the first two loops are reorganized and loops are unrolled,
* in order to eliminate unnecessary readings and writings in array
*/
__asm__ volatile (
"lw %[t1], 17*4(%[in]) \n\t"
"lw %[t2], 16*4(%[in]) \n\t"
"lw %[t3], 15*4(%[in]) \n\t"
"lw %[t4], 14*4(%[in]) \n\t"
"addu %[t1], %[t1], %[t2] \n\t"
"addu %[t2], %[t2], %[t3] \n\t"
"addu %[t3], %[t3], %[t4] \n\t"
"lw %[t5], 13*4(%[in]) \n\t"
"addu %[t1], %[t1], %[t3] \n\t"
"sw %[t2], 16*4(%[in]) \n\t"
"lw %[t6], 12*4(%[in]) \n\t"
"sw %[t1], 17*4(%[in]) \n\t"
"addu %[t4], %[t4], %[t5] \n\t"
"addu %[t5], %[t5], %[t6] \n\t"
"lw %[t7], 11*4(%[in]) \n\t"
"addu %[t3], %[t3], %[t5] \n\t"
"sw %[t4], 14*4(%[in]) \n\t"
"lw %[t8], 10*4(%[in]) \n\t"
"sw %[t3], 15*4(%[in]) \n\t"
"addu %[t6], %[t6], %[t7] \n\t"
"addu %[t7], %[t7], %[t8] \n\t"
"sw %[t6], 12*4(%[in]) \n\t"
"addu %[t5], %[t5], %[t7] \n\t"
"lw %[t1], 9*4(%[in]) \n\t"
"lw %[t2], 8*4(%[in]) \n\t"
"sw %[t5], 13*4(%[in]) \n\t"
"addu %[t8], %[t8], %[t1] \n\t"
"addu %[t1], %[t1], %[t2] \n\t"
"sw %[t8], 10*4(%[in]) \n\t"
"addu %[t7], %[t7], %[t1] \n\t"
"lw %[t3], 7*4(%[in]) \n\t"
"lw %[t4], 6*4(%[in]) \n\t"
"sw %[t7], 11*4(%[in]) \n\t"
"addu %[t2], %[t2], %[t3] \n\t"
"addu %[t3], %[t3], %[t4] \n\t"
"sw %[t2], 8*4(%[in]) \n\t"
"addu %[t1], %[t1], %[t3] \n\t"
"lw %[t5], 5*4(%[in]) \n\t"
"lw %[t6], 4*4(%[in]) \n\t"
"sw %[t1], 9*4(%[in]) \n\t"
"addu %[t4], %[t4], %[t5] \n\t"
"addu %[t5], %[t5], %[t6] \n\t"
"sw %[t4], 6*4(%[in]) \n\t"
"addu %[t3], %[t3], %[t5] \n\t"
"lw %[t7], 3*4(%[in]) \n\t"
"lw %[t8], 2*4(%[in]) \n\t"
"sw %[t3], 7*4(%[in]) \n\t"
"addu %[t6], %[t6], %[t7] \n\t"
"addu %[t7], %[t7], %[t8] \n\t"
"sw %[t6], 4*4(%[in]) \n\t"
"addu %[t5], %[t5], %[t7] \n\t"
"lw %[t1], 1*4(%[in]) \n\t"
"lw %[t2], 0*4(%[in]) \n\t"
"sw %[t5], 5*4(%[in]) \n\t"
"addu %[t8], %[t8], %[t1] \n\t"
"addu %[t1], %[t1], %[t2] \n\t"
"sw %[t8], 2*4(%[in]) \n\t"
"addu %[t7], %[t7], %[t1] \n\t"
"sw %[t7], 3*4(%[in]) \n\t"
"sw %[t1], 1*4(%[in]) \n\t"
: [in] "+r" (in), [t1] "=&r" (t1), [t2] "=&r" (t2), [t3] "=&r" (t3),
[t4] "=&r" (t4), [t5] "=&r" (t5), [t6] "=&r" (t6),
[t7] "=&r" (t7), [t8] "=&r" (t8)
:
: "memory"
);
for(j = 0; j < 2; j++) {
tmp1 = tmp + j;
in1 = in + j;
/**
* Original constants are multiplied by two in advanced
* for assembly optimization (e.g. C_2 = 2 * C2).
* That can lead to overflow in operations where they are used.
*
* Example of the solution:
*
* in original code:
* t0 = ((int64_t)(in1[2*2] + in1[2*4]) * (int64_t)(2*C2))>>32
*
* in assembly:
* C_2 = 2 * C2;
* .
* .
* "lw %[t7], 4*4(%[in1]) \n\t"
* "lw %[t8], 8*4(%[in1]) \n\t"
* "addu %[temp_reg2],%[t7], %[t8] \n\t"
* "multu %[C_2], %[temp_reg2] \n\t"
* "mfhi %[temp_reg1] \n\t"
* "sra %[temp_reg2],%[temp_reg2],31 \n\t"
* "move %[t0], $0 \n\t"
* "movn %[t0], %[C_2], %[temp_reg2] \n\t"
* "sub %[t0], %[temp_reg1],%[t0] \n\t"
*/
__asm__ volatile (
"lw %[t7], 4*4(%[in1]) \n\t"
"lw %[t8], 8*4(%[in1]) \n\t"
"lw %[t6], 16*4(%[in1]) \n\t"
"lw %[t4], 0*4(%[in1]) \n\t"
"addu %[temp_reg2], %[t7], %[t8] \n\t"
"addu %[t2], %[t6], %[t8] \n\t"
"multu %[C_2], %[temp_reg2] \n\t"
"lw %[t5], 12*4(%[in1]) \n\t"
"sub %[t2], %[t2], %[t7] \n\t"
"sub %[t1], %[t4], %[t5] \n\t"
"sra %[t3], %[t5], 1 \n\t"
"sra %[temp_reg1], %[t2], 1 \n\t"
"addu %[t3], %[t3], %[t4] \n\t"
"sub %[temp_reg1], %[t1], %[temp_reg1] \n\t"
"sra %[temp_reg2], %[temp_reg2], 31 \n\t"
"sw %[temp_reg1], 6*4(%[tmp1]) \n\t"
"move %[t0], $0 \n\t"
"movn %[t0], %[C_2], %[temp_reg2] \n\t"
"mfhi %[temp_reg1] \n\t"
"addu %[t1], %[t1], %[t2] \n\t"
"sw %[t1], 16*4(%[tmp1]) \n\t"
"sub %[temp_reg4], %[t8], %[t6] \n\t"
"add %[temp_reg2], %[t7], %[t6] \n\t"
"mult $ac1, %[C_8], %[temp_reg4] \n\t"
"multu $ac2, %[C_4], %[temp_reg2] \n\t"
"sub %[t0], %[temp_reg1], %[t0] \n\t"
"sra %[temp_reg1], %[temp_reg2], 31 \n\t"
"move %[t2], $0 \n\t"
"movn %[t2], %[C_4], %[temp_reg1] \n\t"
"mfhi %[t1], $ac1 \n\t"
"mfhi %[temp_reg1], $ac2 \n\t"
"lw %[t6], 10*4(%[in1]) \n\t"
"lw %[t8], 14*4(%[in1]) \n\t"
"lw %[t7], 2*4(%[in1]) \n\t"
"lw %[t4], 6*4(%[in1]) \n\t"
"sub %[temp_reg3], %[t3], %[t0] \n\t"
"add %[temp_reg4], %[t3], %[t0] \n\t"
"sub %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"add %[temp_reg4], %[temp_reg4], %[t1] \n\t"
"sub %[t2], %[temp_reg1], %[t2] \n\t"
"sw %[temp_reg4], 2*4(%[tmp1]) \n\t"
"sub %[temp_reg3], %[temp_reg3], %[t2] \n\t"
"add %[temp_reg1], %[t3], %[t2] \n\t"
"sw %[temp_reg3], 10*4(%[tmp1]) \n\t"
"sub %[temp_reg1], %[temp_reg1], %[t1] \n\t"
"addu %[temp_reg2], %[t6], %[t8] \n\t"
"sw %[temp_reg1], 14*4(%[tmp1]) \n\t"
"sub %[temp_reg2], %[temp_reg2], %[t7] \n\t"
"addu %[temp_reg3], %[t7], %[t6] \n\t"
"multu $ac3, %[C_3], %[temp_reg2] \n\t"
"multu %[C_1], %[temp_reg3] \n\t"
"sra %[temp_reg1], %[temp_reg2], 31 \n\t"
"move %[t1], $0 \n\t"
"sra %[temp_reg3], %[temp_reg3], 31 \n\t"
"movn %[t1], %[C_3], %[temp_reg1] \n\t"
"mfhi %[temp_reg1], $ac3 \n\t"
"mfhi %[temp_reg4] \n\t"
"move %[t2], $0 \n\t"
"movn %[t2], %[C_1], %[temp_reg3] \n\t"
"sub %[temp_reg3], %[t6], %[t8] \n\t"
"sub %[t2], %[temp_reg4], %[t2] \n\t"
"multu $ac1, %[C_7], %[temp_reg3] \n\t"
"sub %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"sra %[temp_reg4], %[temp_reg3], 31 \n\t"
"sub %[t1], %[temp_reg1], %[t1] \n\t"
"move %[t3], $0 \n\t"
"sw %[t1], 4*4(%[tmp1]) \n\t"
"movn %[t3], %[C_7], %[temp_reg4] \n\t"
"multu $ac2, %[C_3A], %[t4] \n\t"
"add %[temp_reg2], %[t7], %[t8] \n\t"
"move %[t1], $0 \n\t"
"mfhi %[temp_reg4], $ac1 \n\t"
"multu $ac3,%[C_5], %[temp_reg2] \n\t"
"move %[t0], $0 \n\t"
"sra %[temp_reg1], %[temp_reg2], 31 \n\t"
"movn %[t1],%[C_5], %[temp_reg1] \n\t"
"sub %[temp_reg4], %[temp_reg4], %[temp_reg3] \n\t"
"mfhi %[temp_reg1], $ac3 \n\t"
"sra %[temp_reg3], %[t4], 31 \n\t"
"movn %[t0], %[C_3A], %[temp_reg3] \n\t"
"mfhi %[temp_reg3], $ac2 \n\t"
"sub %[t3], %[temp_reg4], %[t3] \n\t"
"add %[temp_reg4], %[t3], %[t2] \n\t"
"sub %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"sub %[t1], %[temp_reg1], %[t1] \n\t"
"sub %[t0], %[temp_reg3], %[t0] \n\t"
"add %[temp_reg1], %[t2], %[t1] \n\t"
"add %[temp_reg4], %[temp_reg4], %[t0] \n\t"
"sub %[temp_reg2], %[t3], %[t1] \n\t"
"sw %[temp_reg4], 0*4(%[tmp1]) \n\t"
"sub %[temp_reg1], %[temp_reg1], %[t0] \n\t"
"sub %[temp_reg2], %[temp_reg2], %[t0] \n\t"
"sw %[temp_reg1], 12*4(%[tmp1]) \n\t"
"sw %[temp_reg2], 8*4(%[tmp1]) \n\t"
: [t7] "=&r" (t7), [temp_reg1] "=&r" (temp_reg1),
[temp_reg2] "=&r" (temp_reg2), [temp_reg4] "=&r" (temp_reg4),
[temp_reg3] "=&r" (temp_reg3), [t8] "=&r" (t8), [t0] "=&r" (t0),
[t4] "=&r" (t4), [t5] "=&r" (t5), [t6] "=&r"(t6), [t2] "=&r" (t2),
[t3] "=&r" (t3), [t1] "=&r" (t1)
: [C_2] "r" (C_2), [in1] "r" (in1), [tmp1] "r" (tmp1), [C_8] "r" (C_8),
[C_4] "r" (C_4), [C_3] "r" (C_3), [C_1] "r" (C_1), [C_7] "r" (C_7),
[C_3A] "r" (C_3A), [C_5] "r" (C_5)
: "memory", "hi", "lo", "$ac1hi", "$ac1lo", "$ac2hi", "$ac2lo",
"$ac3hi", "$ac3lo"
);
}
/**
* loop is unrolled four times
*
* values defined in tables(icos36[] and icos36h[]) are not loaded from
* these tables - they are directly loaded in appropriate registers
*
*/
__asm__ volatile (
"lw %[t2], 1*4(%[tmp]) \n\t"
"lw %[t3], 3*4(%[tmp]) \n\t"
"lw %[t0], 0*4(%[tmp]) \n\t"
"lw %[t1], 2*4(%[tmp]) \n\t"
"addu %[temp_reg1], %[t3], %[t2] \n\t"
"li %[temp_reg2], 0x807D2B1E \n\t"
"move %[s1], $0 \n\t"
"multu %[temp_reg2], %[temp_reg1] \n\t"
"sra %[temp_reg1], %[temp_reg1], 31 \n\t"
"movn %[s1], %[temp_reg2], %[temp_reg1] \n\t"
"sub %[temp_reg3], %[t3], %[t2] \n\t"
"li %[temp_reg4], 0x2de5151 \n\t"
"mfhi %[temp_reg2] \n\t"
"addu %[s0], %[t1], %[t0] \n\t"
"lw %[temp_reg5], 9*4(%[win]) \n\t"
"mult $ac1, %[temp_reg4], %[temp_reg3] \n\t"
"lw %[temp_reg6], 4*9*4(%[buf]) \n\t"
"sub %[s2], %[t1], %[t0] \n\t"
"lw %[temp_reg3], 29*4(%[win]) \n\t"
"subu %[s1], %[temp_reg2], %[s1] \n\t"
"lw %[temp_reg4], 28*4(%[win]) \n\t"
"add %[t0], %[s0], %[s1] \n\t"
"extr.w %[s3], $ac1,23 \n\t"
"mult $ac2, %[t0], %[temp_reg3] \n\t"
"sub %[t1], %[s0], %[s1] \n\t"
"lw %[temp_reg1], 4*8*4(%[buf]) \n\t"
"mult %[t1], %[temp_reg5] \n\t"
"lw %[temp_reg2], 8*4(%[win]) \n\t"
"mfhi %[temp_reg3], $ac2 \n\t"
"mult $ac3, %[t0], %[temp_reg4] \n\t"
"add %[t0], %[s2], %[s3] \n\t"
"mfhi %[temp_reg5] \n\t"
"mult $ac1, %[t1], %[temp_reg2] \n\t"
"sub %[t1], %[s2], %[s3] \n\t"
"sw %[temp_reg3], 4*9*4(%[buf]) \n\t"
"mfhi %[temp_reg4], $ac3 \n\t"
"lw %[temp_reg3], 37*4(%[win]) \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"add %[temp_reg5], %[temp_reg5], %[temp_reg6] \n\t"
"lw %[temp_reg6], 17*4(%[win]) \n\t"
"sw %[temp_reg5], 32*9*4(%[out]) \n\t"
"sw %[temp_reg4], 4*8*4(%[buf]) \n\t"
"mult %[t1], %[temp_reg6] \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"lw %[temp_reg2], 0*4(%[win]) \n\t"
"lw %[temp_reg5], 4*17*4(%[buf]) \n\t"
"sw %[temp_reg1], 8*32*4(%[out]) \n\t"
"mfhi %[temp_reg6] \n\t"
"mult $ac1, %[t1], %[temp_reg2] \n\t"
"lw %[temp_reg4], 20*4(%[win]) \n\t"
"lw %[temp_reg1], 0(%[buf]) \n\t"
"mult $ac2, %[t0], %[temp_reg3] \n\t"
"mult %[t0], %[temp_reg4] \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"lw %[t0], 4*4(%[tmp]) \n\t"
"add %[temp_reg5], %[temp_reg5], %[temp_reg6] \n\t"
"mfhi %[temp_reg3], $ac2 \n\t"
"mfhi %[temp_reg4] \n\t"
"sw %[temp_reg5], 17*32*4(%[out]) \n\t"
"lw %[t1], 6*4(%[tmp]) \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"lw %[t2], 5*4(%[tmp]) \n\t"
"sw %[temp_reg1], 0*32*4(%[out]) \n\t"
"addu %[s0], %[t1], %[t0] \n\t"
"sw %[temp_reg3], 4*17*4(%[buf]) \n\t"
"lw %[t3], 7*4(%[tmp]) \n\t"
"sub %[s2], %[t1], %[t0] \n\t"
"sw %[temp_reg4], 0(%[buf]) \n\t"
"addu %[temp_reg5], %[t3], %[t2] \n\t"
"li %[temp_reg6], 0x8483EE0C \n\t"
"move %[s1], $0 \n\t"
"multu %[temp_reg6], %[temp_reg5] \n\t"
"sub %[temp_reg1], %[t3], %[t2] \n\t"
"li %[temp_reg2], 0xf746ea \n\t"
"sra %[temp_reg5], %[temp_reg5], 31 \n\t"
"mult $ac1, %[temp_reg2], %[temp_reg1] \n\t"
"movn %[s1], %[temp_reg6], %[temp_reg5] \n\t"
"mfhi %[temp_reg5] \n\t"
"lw %[temp_reg3], 10*4(%[win]) \n\t"
"lw %[temp_reg4], 4*10*4(%[buf]) \n\t"
"extr.w %[s3], $ac1, 23 \n\t"
"lw %[temp_reg1], 4*7*4(%[buf]) \n\t"
"lw %[temp_reg2], 7*4(%[win]) \n\t"
"lw %[temp_reg6], 30*4(%[win]) \n\t"
"subu %[s1], %[temp_reg5], %[s1] \n\t"
"sub %[t1], %[s0], %[s1] \n\t"
"add %[t0], %[s0], %[s1] \n\t"
"mult $ac2, %[t1], %[temp_reg3] \n\t"
"mult $ac3, %[t1], %[temp_reg2] \n\t"
"mult %[t0], %[temp_reg6] \n\t"
"lw %[temp_reg5], 27*4(%[win]) \n\t"
"mult $ac1, %[t0], %[temp_reg5] \n\t"
"mfhi %[temp_reg3], $ac2 \n\t"
"mfhi %[temp_reg2], $ac3 \n\t"
"mfhi %[temp_reg6] \n\t"
"add %[t0], %[s2], %[s3] \n\t"
"sub %[t1], %[s2], %[s3] \n\t"
"add %[temp_reg3], %[temp_reg3], %[temp_reg4] \n\t"
"lw %[temp_reg4], 16*4(%[win]) \n\t"
"mfhi %[temp_reg5], $ac1 \n\t"
"sw %[temp_reg3], 32*10*4(%[out]) \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"lw %[temp_reg3], 4*16*4(%[buf]) \n\t"
"sw %[temp_reg6], 4*10*4(%[buf]) \n\t"
"sw %[temp_reg1], 7*32*4(%[out]) \n\t"
"mult $ac2, %[t1], %[temp_reg4] \n\t"
"sw %[temp_reg5], 4*7*4(%[buf]) \n\t"
"lw %[temp_reg6], 1*4(%[win]) \n\t"
"lw %[temp_reg5], 4*1*4(%[buf]) \n\t"
"lw %[temp_reg1], 36*4(%[win]) \n\t"
"mult $ac3, %[t1], %[temp_reg6] \n\t"
"lw %[temp_reg2], 21*4(%[win]) \n\t"
"mfhi %[temp_reg4], $ac2 \n\t"
"mult %[t0], %[temp_reg1] \n\t"
"mult $ac1, %[t0],%[temp_reg2] \n\t"
"lw %[t0], 8*4(%[tmp]) \n\t"
"mfhi %[temp_reg6], $ac3 \n\t"
"lw %[t1], 10*4(%[tmp]) \n\t"
"lw %[t3], 11*4(%[tmp]) \n\t"
"mfhi %[temp_reg1] \n\t"
"add %[temp_reg3], %[temp_reg3], %[temp_reg4] \n\t"
"lw %[t2], 9*4(%[tmp]) \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"add %[temp_reg5], %[temp_reg5], %[temp_reg6] \n\t"
"sw %[temp_reg3], 16*32*4(%[out]) \n\t"
"sw %[temp_reg5], 1*32*4(%[out]) \n\t"
"sw %[temp_reg1], 4*16*4(%[buf]) \n\t"
"addu %[temp_reg3], %[t3], %[t2] \n\t"
"li %[temp_reg4], 0x8D3B7CD6 \n\t"
"sw %[temp_reg2], 4*1*4(%[buf]) \n\t"
"multu %[temp_reg4],%[temp_reg3] \n\t"
"sra %[temp_reg3], %[temp_reg3], 31 \n\t"
"move %[s1], $0 \n\t"
"movn %[s1], %[temp_reg4], %[temp_reg3] \n\t"
"addu %[s0], %[t1], %[t0] \n\t"
"mfhi %[temp_reg3] \n\t"
"sub %[s2], %[t1], %[t0] \n\t"
"sub %[temp_reg5], %[t3], %[t2] \n\t"
"li %[temp_reg6], 0x976fd9 \n\t"
"lw %[temp_reg2], 11*4(%[win]) \n\t"
"lw %[temp_reg1], 4*11*4(%[buf]) \n\t"
"mult $ac1, %[temp_reg6], %[temp_reg5] \n\t"
"subu %[s1], %[temp_reg3], %[s1] \n\t"
"lw %[temp_reg5], 31*4(%[win]) \n\t"
"sub %[t1], %[s0], %[s1] \n\t"
"add %[t0], %[s0], %[s1] \n\t"
"mult $ac2, %[t1], %[temp_reg2] \n\t"
"mult %[t0], %[temp_reg5] \n\t"
"lw %[temp_reg4], 6*4(%[win]) \n\t"
"extr.w %[s3], $ac1, 23 \n\t"
"lw %[temp_reg3], 4*6*4(%[buf]) \n\t"
"mfhi %[temp_reg2], $ac2 \n\t"
"lw %[temp_reg6], 26*4(%[win]) \n\t"
"mfhi %[temp_reg5] \n\t"
"mult $ac3, %[t1], %[temp_reg4] \n\t"
"mult $ac1, %[t0], %[temp_reg6] \n\t"
"add %[t0], %[s2], %[s3] \n\t"
"sub %[t1], %[s2], %[s3] \n\t"
"add %[temp_reg2], %[temp_reg2], %[temp_reg1] \n\t"
"mfhi %[temp_reg4], $ac3 \n\t"
"mfhi %[temp_reg6], $ac1 \n\t"
"sw %[temp_reg5], 4*11*4(%[buf]) \n\t"
"sw %[temp_reg2], 32*11*4(%[out]) \n\t"
"lw %[temp_reg1], 4*15*4(%[buf]) \n\t"
"add %[temp_reg3], %[temp_reg3], %[temp_reg4] \n\t"
"lw %[temp_reg2], 15*4(%[win]) \n\t"
"sw %[temp_reg3], 6*32*4(%[out]) \n\t"
"sw %[temp_reg6], 4*6*4(%[buf]) \n\t"
"mult %[t1], %[temp_reg2] \n\t"
"lw %[temp_reg3], 2*4(%[win]) \n\t"
"lw %[temp_reg4], 4*2*4(%[buf]) \n\t"
"lw %[temp_reg5], 35*4(%[win]) \n\t"
"mult $ac1, %[t1], %[temp_reg3] \n\t"
"mfhi %[temp_reg2] \n\t"
"lw %[temp_reg6], 22*4(%[win]) \n\t"
"mult $ac2, %[t0], %[temp_reg5] \n\t"
"lw %[t1], 14*4(%[tmp]) \n\t"
"mult $ac3, %[t0], %[temp_reg6] \n\t"
"lw %[t0], 12*4(%[tmp]) \n\t"
"mfhi %[temp_reg3], $ac1 \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"mfhi %[temp_reg5], $ac2 \n\t"
"sw %[temp_reg1], 15*32*4(%[out]) \n\t"
"mfhi %[temp_reg6], $ac3 \n\t"
"lw %[t2], 13*4(%[tmp]) \n\t"
"lw %[t3], 15*4(%[tmp]) \n\t"
"add %[temp_reg4], %[temp_reg4], %[temp_reg3] \n\t"
"sw %[temp_reg5], 4*15*4(%[buf]) \n\t"
"addu %[temp_reg1], %[t3], %[t2] \n\t"
"li %[temp_reg2], 0x9C42577C \n\t"
"move %[s1], $0 \n\t"
"multu %[temp_reg2], %[temp_reg1] \n\t"
"sw %[temp_reg4], 2*32*4(%[out]) \n\t"
"sra %[temp_reg1], %[temp_reg1], 31 \n\t"
"movn %[s1], %[temp_reg2], %[temp_reg1] \n\t"
"sub %[temp_reg3], %[t3], %[t2] \n\t"
"li %[temp_reg4], 0x6f94a2 \n\t"
"mfhi %[temp_reg1] \n\t"
"addu %[s0], %[t1], %[t0] \n\t"
"sw %[temp_reg6], 4*2*4(%[buf]) \n\t"
"mult $ac1, %[temp_reg4], %[temp_reg3] \n\t"
"sub %[s2], %[t1], %[t0] \n\t"
"lw %[temp_reg5], 12*4(%[win]) \n\t"
"lw %[temp_reg6], 4*12*4(%[buf]) \n\t"
"subu %[s1], %[temp_reg1], %[s1] \n\t"
"sub %[t1], %[s0], %[s1] \n\t"
"lw %[temp_reg3], 32*4(%[win]) \n\t"
"mult $ac2, %[t1], %[temp_reg5] \n\t"
"add %[t0], %[s0], %[s1] \n\t"
"extr.w %[s3], $ac1, 23 \n\t"
"lw %[temp_reg2], 5*4(%[win]) \n\t"
"mult %[t0], %[temp_reg3] \n\t"
"mfhi %[temp_reg5], $ac2 \n\t"
"lw %[temp_reg4], 25*4(%[win]) \n\t"
"lw %[temp_reg1], 4*5*4(%[buf]) \n\t"
"mult $ac3, %[t1], %[temp_reg2] \n\t"
"mult $ac1, %[t0], %[temp_reg4] \n\t"
"mfhi %[temp_reg3] \n\t"
"add %[t0], %[s2], %[s3] \n\t"
"add %[temp_reg5], %[temp_reg5], %[temp_reg6] \n\t"
"mfhi %[temp_reg2], $ac3 \n\t"
"mfhi %[temp_reg4], $ac1 \n\t"
"sub %[t1], %[s2], %[s3] \n\t"
"sw %[temp_reg5], 32*12*4(%[out]) \n\t"
"sw %[temp_reg3], 4*12*4(%[buf]) \n\t"
"lw %[temp_reg6], 14*4(%[win]) \n\t"
"lw %[temp_reg5], 4*14*4(%[buf]) \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"sw %[temp_reg4], 4*5*4(%[buf]) \n\t"
"sw %[temp_reg1], 5*32*4(%[out]) \n\t"
"mult %[t1], %[temp_reg6] \n\t"
"lw %[temp_reg4], 34*4(%[win]) \n\t"
"lw %[temp_reg2], 3*4(%[win]) \n\t"
"lw %[temp_reg1], 4*3*4(%[buf]) \n\t"
"mult $ac2, %[t0], %[temp_reg4] \n\t"
"mfhi %[temp_reg6] \n\t"
"mult $ac1, %[t1], %[temp_reg2] \n\t"
"lw %[temp_reg3], 23*4(%[win]) \n\t"
"lw %[s0], 16*4(%[tmp]) \n\t"
"mfhi %[temp_reg4], $ac2 \n\t"
"lw %[t1], 17*4(%[tmp]) \n\t"
"mult $ac3, %[t0], %[temp_reg3] \n\t"
"move %[s1], $0 \n\t"
"add %[temp_reg5], %[temp_reg5], %[temp_reg6] \n\t"
"mfhi %[temp_reg2], $ac1 \n\t"
"sw %[temp_reg5], 14*32*4(%[out]) \n\t"
"sw %[temp_reg4], 4*14*4(%[buf]) \n\t"
"mfhi %[temp_reg3], $ac3 \n\t"
"li %[temp_reg5], 0xB504F334 \n\t"
"add %[temp_reg1], %[temp_reg1], %[temp_reg2] \n\t"
"multu %[temp_reg5], %[t1] \n\t"
"lw %[temp_reg2], 4*13*4(%[buf]) \n\t"
"sw %[temp_reg1], 3*32*4(%[out]) \n\t"
"sra %[t1], %[t1], 31 \n\t"
"mfhi %[temp_reg6] \n\t"
"movn %[s1], %[temp_reg5], %[t1] \n\t"
"sw %[temp_reg3], 4*3*4(%[buf]) \n\t"
"lw %[temp_reg1], 13*4(%[win]) \n\t"
"lw %[temp_reg4], 4*4*4(%[buf]) \n\t"
"lw %[temp_reg3], 4*4(%[win]) \n\t"
"lw %[temp_reg5], 33*4(%[win]) \n\t"
"subu %[s1], %[temp_reg6], %[s1] \n\t"
"lw %[temp_reg6], 24*4(%[win]) \n\t"
"sub %[t1], %[s0], %[s1] \n\t"
"add %[t0], %[s0], %[s1] \n\t"
"mult $ac1, %[t1], %[temp_reg1] \n\t"
"mult $ac2, %[t1], %[temp_reg3] \n\t"
"mult $ac3, %[t0], %[temp_reg5] \n\t"
"mult %[t0], %[temp_reg6] \n\t"
"mfhi %[temp_reg1], $ac1 \n\t"
"mfhi %[temp_reg3], $ac2 \n\t"
"mfhi %[temp_reg5], $ac3 \n\t"
"mfhi %[temp_reg6] \n\t"
"add %[temp_reg2], %[temp_reg2], %[temp_reg1] \n\t"
"add %[temp_reg4], %[temp_reg4], %[temp_reg3] \n\t"
"sw %[temp_reg2], 13*32*4(%[out]) \n\t"
"sw %[temp_reg4], 4*32*4(%[out]) \n\t"
"sw %[temp_reg5], 4*13*4(%[buf]) \n\t"
"sw %[temp_reg6], 4*4*4(%[buf]) \n\t"
: [t0] "=&r" (t0), [t1] "=&r" (t1), [t2] "=&r" (t2), [t3] "=&r" (t3),
[s0] "=&r" (s0), [s2] "=&r" (s2), [temp_reg1] "=&r" (temp_reg1),
[temp_reg2] "=&r" (temp_reg2), [s1] "=&r" (s1), [s3] "=&r" (s3),
[temp_reg3] "=&r" (temp_reg3), [temp_reg4] "=&r" (temp_reg4),
[temp_reg5] "=&r" (temp_reg5), [temp_reg6] "=&r" (temp_reg6),
[out] "+r" (out)
: [tmp] "r" (tmp), [win] "r" (win), [buf] "r" (buf)
: "memory", "hi", "lo", "$ac1hi", "$ac1lo", "$ac2hi", "$ac2lo",
"$ac3hi", "$ac3lo"
);
}
static void ff_imdct36_blocks_mips_fixed(int *out, int *buf, int *in,
int count, int switch_point, int block_type)
{
int j;
for (j=0 ; j < count; j++) {
/* apply window & overlap with previous buffer */
/* select window */
int win_idx = (switch_point && j < 2) ? 0 : block_type;
int *win = ff_mdct_win_fixed[win_idx + (4 & -(j & 1))];
imdct36_mips_fixed(out, buf, in, win);
in += 18;
buf += ((j&3) != 3 ? 1 : (72-3));
out++;
}
}
#endif /* !HAVE_MIPS32R6 && !HAVE_MIPS64R6 */
#endif /* HAVE_INLINE_ASM */
void ff_mpadsp_init_mipsdsp(MPADSPContext *s)
{
#if HAVE_INLINE_ASM
#if !HAVE_MIPS32R6 && !HAVE_MIPS64R6
s->apply_window_fixed = ff_mpadsp_apply_window_mips_fixed;
s->imdct36_blocks_fixed = ff_imdct36_blocks_mips_fixed;
#endif
#endif
}
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