ref: 706f1f10e016f30f6f68afd938e25df9765ffb87
dir: /vpx_dsp/mips/itrans32_dspr2.c/
/*
* Copyright (c) 2013 The WebM 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 <assert.h>
#include <stdio.h>
#include "./vpx_config.h"
#include "vpx_dsp/mips/inv_txfm_dspr2.h"
#include "vpx_dsp/txfm_common.h"
#if HAVE_DSPR2
static void idct32_rows_dspr2(const int16_t *input, int16_t *output,
uint32_t no_rows) {
int step1_0, step1_1, step1_2, step1_3, step1_4, step1_5, step1_6;
int step1_7, step1_8, step1_9, step1_10, step1_11, step1_12, step1_13;
int step1_14, step1_15, step1_16, step1_17, step1_18, step1_19, step1_20;
int step1_21, step1_22, step1_23, step1_24, step1_25, step1_26, step1_27;
int step1_28, step1_29, step1_30, step1_31;
int step2_0, step2_1, step2_2, step2_3, step2_4, step2_5, step2_6;
int step2_7, step2_8, step2_9, step2_10, step2_11, step2_12, step2_13;
int step2_14, step2_15, step2_16, step2_17, step2_18, step2_19, step2_20;
int step2_21, step2_22, step2_23, step2_24, step2_25, step2_26, step2_27;
int step2_28, step2_29, step2_30, step2_31;
int step3_8, step3_9, step3_10, step3_11, step3_12, step3_13, step3_14;
int step3_15, step3_16, step3_17, step3_18, step3_19, step3_20, step3_21;
int step3_22, step3_23, step3_24, step3_25, step3_26, step3_27, step3_28;
int step3_29, step3_30, step3_31;
int temp0, temp1, temp2, temp3;
int load1, load2, load3, load4;
int result1, result2;
int i;
const int const_2_power_13 = 8192;
const int32_t *input_int;
for (i = no_rows; i--;) {
input_int = (const int32_t *)input;
if (!(input_int[0] | input_int[1] | input_int[2] | input_int[3] |
input_int[4] | input_int[5] | input_int[6] | input_int[7] |
input_int[8] | input_int[9] | input_int[10] | input_int[11] |
input_int[12] | input_int[13] | input_int[14] | input_int[15])) {
input += 32;
__asm__ __volatile__(
"sh $zero, 0(%[output]) \n\t"
"sh $zero, 64(%[output]) \n\t"
"sh $zero, 128(%[output]) \n\t"
"sh $zero, 192(%[output]) \n\t"
"sh $zero, 256(%[output]) \n\t"
"sh $zero, 320(%[output]) \n\t"
"sh $zero, 384(%[output]) \n\t"
"sh $zero, 448(%[output]) \n\t"
"sh $zero, 512(%[output]) \n\t"
"sh $zero, 576(%[output]) \n\t"
"sh $zero, 640(%[output]) \n\t"
"sh $zero, 704(%[output]) \n\t"
"sh $zero, 768(%[output]) \n\t"
"sh $zero, 832(%[output]) \n\t"
"sh $zero, 896(%[output]) \n\t"
"sh $zero, 960(%[output]) \n\t"
"sh $zero, 1024(%[output]) \n\t"
"sh $zero, 1088(%[output]) \n\t"
"sh $zero, 1152(%[output]) \n\t"
"sh $zero, 1216(%[output]) \n\t"
"sh $zero, 1280(%[output]) \n\t"
"sh $zero, 1344(%[output]) \n\t"
"sh $zero, 1408(%[output]) \n\t"
"sh $zero, 1472(%[output]) \n\t"
"sh $zero, 1536(%[output]) \n\t"
"sh $zero, 1600(%[output]) \n\t"
"sh $zero, 1664(%[output]) \n\t"
"sh $zero, 1728(%[output]) \n\t"
"sh $zero, 1792(%[output]) \n\t"
"sh $zero, 1856(%[output]) \n\t"
"sh $zero, 1920(%[output]) \n\t"
"sh $zero, 1984(%[output]) \n\t"
:
: [output] "r"(output));
output += 1;
continue;
}
/* prefetch row */
prefetch_load((const uint8_t *)(input + 32));
prefetch_load((const uint8_t *)(input + 48));
__asm__ __volatile__(
"lh %[load1], 2(%[input]) \n\t"
"lh %[load2], 62(%[input]) \n\t"
"lh %[load3], 34(%[input]) \n\t"
"lh %[load4], 30(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load1], %[cospi_31_64] \n\t"
"msub $ac1, %[load2], %[cospi_1_64] \n\t"
"extp %[temp0], $ac1, 31 \n\t"
"madd $ac3, %[load1], %[cospi_1_64] \n\t"
"madd $ac3, %[load2], %[cospi_31_64] \n\t"
"extp %[temp3], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac2, %[load3], %[cospi_15_64] \n\t"
"msub $ac2, %[load4], %[cospi_17_64] \n\t"
"extp %[temp1], $ac2, 31 \n\t"
"madd $ac1, %[load3], %[cospi_17_64] \n\t"
"madd $ac1, %[load4], %[cospi_15_64] \n\t"
"extp %[temp2], $ac1, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load1], %[temp3], %[temp2] \n\t"
"sub %[load2], %[temp0], %[temp1] \n\t"
"madd $ac1, %[load1], %[cospi_28_64] \n\t"
"msub $ac1, %[load2], %[cospi_4_64] \n\t"
"madd $ac3, %[load1], %[cospi_4_64] \n\t"
"madd $ac3, %[load2], %[cospi_28_64] \n\t"
"extp %[step1_17], $ac1, 31 \n\t"
"extp %[step1_30], $ac3, 31 \n\t"
"add %[step1_16], %[temp0], %[temp1] \n\t"
"add %[step1_31], %[temp2], %[temp3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[temp2] "=&r"(temp2), [temp3] "=&r"(temp3),
[step1_16] "=&r"(step1_16), [step1_17] "=&r"(step1_17),
[step1_30] "=&r"(step1_30), [step1_31] "=&r"(step1_31)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_31_64] "r"(cospi_31_64), [cospi_1_64] "r"(cospi_1_64),
[cospi_4_64] "r"(cospi_4_64), [cospi_17_64] "r"(cospi_17_64),
[cospi_15_64] "r"(cospi_15_64), [cospi_28_64] "r"(cospi_28_64));
__asm__ __volatile__(
"lh %[load1], 18(%[input]) \n\t"
"lh %[load2], 46(%[input]) \n\t"
"lh %[load3], 50(%[input]) \n\t"
"lh %[load4], 14(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load1], %[cospi_23_64] \n\t"
"msub $ac1, %[load2], %[cospi_9_64] \n\t"
"extp %[temp0], $ac1, 31 \n\t"
"madd $ac3, %[load1], %[cospi_9_64] \n\t"
"madd $ac3, %[load2], %[cospi_23_64] \n\t"
"extp %[temp3], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac2, %[load3], %[cospi_7_64] \n\t"
"msub $ac2, %[load4], %[cospi_25_64] \n\t"
"extp %[temp1], $ac2, 31 \n\t"
"madd $ac1, %[load3], %[cospi_25_64] \n\t"
"madd $ac1, %[load4], %[cospi_7_64] \n\t"
"extp %[temp2], $ac1, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load1], %[temp1], %[temp0] \n\t"
"sub %[load2], %[temp2], %[temp3] \n\t"
"msub $ac1, %[load1], %[cospi_28_64] \n\t"
"msub $ac1, %[load2], %[cospi_4_64] \n\t"
"msub $ac3, %[load1], %[cospi_4_64] \n\t"
"madd $ac3, %[load2], %[cospi_28_64] \n\t"
"extp %[step1_18], $ac1, 31 \n\t"
"extp %[step1_29], $ac3, 31 \n\t"
"add %[step1_19], %[temp0], %[temp1] \n\t"
"add %[step1_28], %[temp2], %[temp3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[temp2] "=&r"(temp2), [temp3] "=&r"(temp3),
[step1_18] "=&r"(step1_18), [step1_19] "=&r"(step1_19),
[step1_28] "=&r"(step1_28), [step1_29] "=&r"(step1_29)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_23_64] "r"(cospi_23_64), [cospi_9_64] "r"(cospi_9_64),
[cospi_4_64] "r"(cospi_4_64), [cospi_7_64] "r"(cospi_7_64),
[cospi_25_64] "r"(cospi_25_64), [cospi_28_64] "r"(cospi_28_64));
__asm__ __volatile__(
"lh %[load1], 10(%[input]) \n\t"
"lh %[load2], 54(%[input]) \n\t"
"lh %[load3], 42(%[input]) \n\t"
"lh %[load4], 22(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load1], %[cospi_27_64] \n\t"
"msub $ac1, %[load2], %[cospi_5_64] \n\t"
"extp %[temp0], $ac1, 31 \n\t"
"madd $ac3, %[load1], %[cospi_5_64] \n\t"
"madd $ac3, %[load2], %[cospi_27_64] \n\t"
"extp %[temp3], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac2, %[load3], %[cospi_11_64] \n\t"
"msub $ac2, %[load4], %[cospi_21_64] \n\t"
"extp %[temp1], $ac2, 31 \n\t"
"madd $ac1, %[load3], %[cospi_21_64] \n\t"
"madd $ac1, %[load4], %[cospi_11_64] \n\t"
"extp %[temp2], $ac1, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load1], %[temp0], %[temp1] \n\t"
"sub %[load2], %[temp3], %[temp2] \n\t"
"madd $ac1, %[load2], %[cospi_12_64] \n\t"
"msub $ac1, %[load1], %[cospi_20_64] \n\t"
"madd $ac3, %[load1], %[cospi_12_64] \n\t"
"madd $ac3, %[load2], %[cospi_20_64] \n\t"
"extp %[step1_21], $ac1, 31 \n\t"
"extp %[step1_26], $ac3, 31 \n\t"
"add %[step1_20], %[temp0], %[temp1] \n\t"
"add %[step1_27], %[temp2], %[temp3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[temp2] "=&r"(temp2), [temp3] "=&r"(temp3),
[step1_20] "=&r"(step1_20), [step1_21] "=&r"(step1_21),
[step1_26] "=&r"(step1_26), [step1_27] "=&r"(step1_27)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_27_64] "r"(cospi_27_64), [cospi_5_64] "r"(cospi_5_64),
[cospi_11_64] "r"(cospi_11_64), [cospi_21_64] "r"(cospi_21_64),
[cospi_12_64] "r"(cospi_12_64), [cospi_20_64] "r"(cospi_20_64));
__asm__ __volatile__(
"lh %[load1], 26(%[input]) \n\t"
"lh %[load2], 38(%[input]) \n\t"
"lh %[load3], 58(%[input]) \n\t"
"lh %[load4], 6(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load1], %[cospi_19_64] \n\t"
"msub $ac1, %[load2], %[cospi_13_64] \n\t"
"extp %[temp0], $ac1, 31 \n\t"
"madd $ac3, %[load1], %[cospi_13_64] \n\t"
"madd $ac3, %[load2], %[cospi_19_64] \n\t"
"extp %[temp3], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac2, %[load3], %[cospi_3_64] \n\t"
"msub $ac2, %[load4], %[cospi_29_64] \n\t"
"extp %[temp1], $ac2, 31 \n\t"
"madd $ac1, %[load3], %[cospi_29_64] \n\t"
"madd $ac1, %[load4], %[cospi_3_64] \n\t"
"extp %[temp2], $ac1, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load1], %[temp1], %[temp0] \n\t"
"sub %[load2], %[temp2], %[temp3] \n\t"
"msub $ac1, %[load1], %[cospi_12_64] \n\t"
"msub $ac1, %[load2], %[cospi_20_64] \n\t"
"msub $ac3, %[load1], %[cospi_20_64] \n\t"
"madd $ac3, %[load2], %[cospi_12_64] \n\t"
"extp %[step1_22], $ac1, 31 \n\t"
"extp %[step1_25], $ac3, 31 \n\t"
"add %[step1_23], %[temp0], %[temp1] \n\t"
"add %[step1_24], %[temp2], %[temp3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[temp2] "=&r"(temp2), [temp3] "=&r"(temp3),
[step1_22] "=&r"(step1_22), [step1_23] "=&r"(step1_23),
[step1_24] "=&r"(step1_24), [step1_25] "=&r"(step1_25)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_19_64] "r"(cospi_19_64), [cospi_13_64] "r"(cospi_13_64),
[cospi_3_64] "r"(cospi_3_64), [cospi_29_64] "r"(cospi_29_64),
[cospi_12_64] "r"(cospi_12_64), [cospi_20_64] "r"(cospi_20_64));
__asm__ __volatile__(
"lh %[load1], 4(%[input]) \n\t"
"lh %[load2], 60(%[input]) \n\t"
"lh %[load3], 36(%[input]) \n\t"
"lh %[load4], 28(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load1], %[cospi_30_64] \n\t"
"msub $ac1, %[load2], %[cospi_2_64] \n\t"
"extp %[temp0], $ac1, 31 \n\t"
"madd $ac3, %[load1], %[cospi_2_64] \n\t"
"madd $ac3, %[load2], %[cospi_30_64] \n\t"
"extp %[temp3], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac2, %[load3], %[cospi_14_64] \n\t"
"msub $ac2, %[load4], %[cospi_18_64] \n\t"
"extp %[temp1], $ac2, 31 \n\t"
"madd $ac1, %[load3], %[cospi_18_64] \n\t"
"madd $ac1, %[load4], %[cospi_14_64] \n\t"
"extp %[temp2], $ac1, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load1], %[temp0], %[temp1] \n\t"
"sub %[load2], %[temp3], %[temp2] \n\t"
"msub $ac1, %[load1], %[cospi_8_64] \n\t"
"madd $ac1, %[load2], %[cospi_24_64] \n\t"
"madd $ac3, %[load1], %[cospi_24_64] \n\t"
"madd $ac3, %[load2], %[cospi_8_64] \n\t"
"extp %[step2_9], $ac1, 31 \n\t"
"extp %[step2_14], $ac3, 31 \n\t"
"add %[step2_8], %[temp0], %[temp1] \n\t"
"add %[step2_15], %[temp2], %[temp3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[temp2] "=&r"(temp2), [temp3] "=&r"(temp3), [step2_8] "=&r"(step2_8),
[step2_9] "=&r"(step2_9), [step2_14] "=&r"(step2_14),
[step2_15] "=&r"(step2_15)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_30_64] "r"(cospi_30_64), [cospi_2_64] "r"(cospi_2_64),
[cospi_14_64] "r"(cospi_14_64), [cospi_18_64] "r"(cospi_18_64),
[cospi_8_64] "r"(cospi_8_64), [cospi_24_64] "r"(cospi_24_64));
__asm__ __volatile__(
"lh %[load1], 20(%[input]) \n\t"
"lh %[load2], 44(%[input]) \n\t"
"lh %[load3], 52(%[input]) \n\t"
"lh %[load4], 12(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load1], %[cospi_22_64] \n\t"
"msub $ac1, %[load2], %[cospi_10_64] \n\t"
"extp %[temp0], $ac1, 31 \n\t"
"madd $ac3, %[load1], %[cospi_10_64] \n\t"
"madd $ac3, %[load2], %[cospi_22_64] \n\t"
"extp %[temp3], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac2, %[load3], %[cospi_6_64] \n\t"
"msub $ac2, %[load4], %[cospi_26_64] \n\t"
"extp %[temp1], $ac2, 31 \n\t"
"madd $ac1, %[load3], %[cospi_26_64] \n\t"
"madd $ac1, %[load4], %[cospi_6_64] \n\t"
"extp %[temp2], $ac1, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load1], %[temp1], %[temp0] \n\t"
"sub %[load2], %[temp2], %[temp3] \n\t"
"msub $ac1, %[load1], %[cospi_24_64] \n\t"
"msub $ac1, %[load2], %[cospi_8_64] \n\t"
"madd $ac3, %[load2], %[cospi_24_64] \n\t"
"msub $ac3, %[load1], %[cospi_8_64] \n\t"
"extp %[step2_10], $ac1, 31 \n\t"
"extp %[step2_13], $ac3, 31 \n\t"
"add %[step2_11], %[temp0], %[temp1] \n\t"
"add %[step2_12], %[temp2], %[temp3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[temp2] "=&r"(temp2), [temp3] "=&r"(temp3),
[step2_10] "=&r"(step2_10), [step2_11] "=&r"(step2_11),
[step2_12] "=&r"(step2_12), [step2_13] "=&r"(step2_13)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_22_64] "r"(cospi_22_64), [cospi_10_64] "r"(cospi_10_64),
[cospi_6_64] "r"(cospi_6_64), [cospi_26_64] "r"(cospi_26_64),
[cospi_8_64] "r"(cospi_8_64), [cospi_24_64] "r"(cospi_24_64));
__asm__ __volatile__(
"mtlo %[const_2_power_13], $ac0 \n\t"
"mthi $zero, $ac0 \n\t"
"sub %[temp0], %[step2_14], %[step2_13] \n\t"
"sub %[temp0], %[temp0], %[step2_9] \n\t"
"add %[temp0], %[temp0], %[step2_10] \n\t"
"madd $ac0, %[temp0], %[cospi_16_64] \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"sub %[temp1], %[step2_14], %[step2_13] \n\t"
"add %[temp1], %[temp1], %[step2_9] \n\t"
"sub %[temp1], %[temp1], %[step2_10] \n\t"
"madd $ac1, %[temp1], %[cospi_16_64] \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"sub %[temp0], %[step2_15], %[step2_12] \n\t"
"sub %[temp0], %[temp0], %[step2_8] \n\t"
"add %[temp0], %[temp0], %[step2_11] \n\t"
"madd $ac2, %[temp0], %[cospi_16_64] \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[temp1], %[step2_15], %[step2_12] \n\t"
"add %[temp1], %[temp1], %[step2_8] \n\t"
"sub %[temp1], %[temp1], %[step2_11] \n\t"
"madd $ac3, %[temp1], %[cospi_16_64] \n\t"
"add %[step3_8], %[step2_8], %[step2_11] \n\t"
"add %[step3_9], %[step2_9], %[step2_10] \n\t"
"add %[step3_14], %[step2_13], %[step2_14] \n\t"
"add %[step3_15], %[step2_12], %[step2_15] \n\t"
"extp %[step3_10], $ac0, 31 \n\t"
"extp %[step3_13], $ac1, 31 \n\t"
"extp %[step3_11], $ac2, 31 \n\t"
"extp %[step3_12], $ac3, 31 \n\t"
: [temp0] "=&r"(temp0), [temp1] "=&r"(temp1), [step3_8] "=&r"(step3_8),
[step3_9] "=&r"(step3_9), [step3_10] "=&r"(step3_10),
[step3_11] "=&r"(step3_11), [step3_12] "=&r"(step3_12),
[step3_13] "=&r"(step3_13), [step3_14] "=&r"(step3_14),
[step3_15] "=&r"(step3_15)
: [const_2_power_13] "r"(const_2_power_13), [step2_8] "r"(step2_8),
[step2_9] "r"(step2_9), [step2_10] "r"(step2_10),
[step2_11] "r"(step2_11), [step2_12] "r"(step2_12),
[step2_13] "r"(step2_13), [step2_14] "r"(step2_14),
[step2_15] "r"(step2_15), [cospi_16_64] "r"(cospi_16_64));
__asm__ __volatile__(
"mtlo %[const_2_power_13], $ac0 \n\t"
"mthi $zero, $ac0 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"sub %[temp0], %[step1_17], %[step1_18] \n\t"
"sub %[temp1], %[step1_30], %[step1_29] \n\t"
"add %[step3_17], %[step1_17], %[step1_18] \n\t"
"add %[step3_30], %[step1_30], %[step1_29] \n\t"
"msub $ac0, %[temp0], %[cospi_8_64] \n\t"
"madd $ac0, %[temp1], %[cospi_24_64] \n\t"
"extp %[step3_18], $ac0, 31 \n\t"
"madd $ac1, %[temp0], %[cospi_24_64] \n\t"
"madd $ac1, %[temp1], %[cospi_8_64] \n\t"
"extp %[step3_29], $ac1, 31 \n\t"
: [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[step3_18] "=&r"(step3_18), [step3_29] "=&r"(step3_29),
[step3_17] "=&r"(step3_17), [step3_30] "=&r"(step3_30)
: [const_2_power_13] "r"(const_2_power_13), [step1_17] "r"(step1_17),
[step1_18] "r"(step1_18), [step1_30] "r"(step1_30),
[step1_29] "r"(step1_29), [cospi_24_64] "r"(cospi_24_64),
[cospi_8_64] "r"(cospi_8_64));
__asm__ __volatile__(
"mtlo %[const_2_power_13], $ac0 \n\t"
"mthi $zero, $ac0 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"sub %[temp0], %[step1_16], %[step1_19] \n\t"
"sub %[temp1], %[step1_31], %[step1_28] \n\t"
"add %[step3_16], %[step1_16], %[step1_19] \n\t"
"add %[step3_31], %[step1_31], %[step1_28] \n\t"
"msub $ac0, %[temp0], %[cospi_8_64] \n\t"
"madd $ac0, %[temp1], %[cospi_24_64] \n\t"
"extp %[step3_19], $ac0, 31 \n\t"
"madd $ac1, %[temp0], %[cospi_24_64] \n\t"
"madd $ac1, %[temp1], %[cospi_8_64] \n\t"
"extp %[step3_28], $ac1, 31 \n\t"
: [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[step3_16] "=&r"(step3_16), [step3_31] "=&r"(step3_31),
[step3_19] "=&r"(step3_19), [step3_28] "=&r"(step3_28)
: [const_2_power_13] "r"(const_2_power_13), [step1_16] "r"(step1_16),
[step1_19] "r"(step1_19), [step1_31] "r"(step1_31),
[step1_28] "r"(step1_28), [cospi_24_64] "r"(cospi_24_64),
[cospi_8_64] "r"(cospi_8_64));
__asm__ __volatile__(
"mtlo %[const_2_power_13], $ac0 \n\t"
"mthi $zero, $ac0 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"sub %[temp0], %[step1_23], %[step1_20] \n\t"
"sub %[temp1], %[step1_24], %[step1_27] \n\t"
"add %[step3_23], %[step1_23], %[step1_20] \n\t"
"add %[step3_24], %[step1_24], %[step1_27] \n\t"
"msub $ac0, %[temp0], %[cospi_8_64] \n\t"
"madd $ac0, %[temp1], %[cospi_24_64] \n\t"
"extp %[step3_27], $ac0, 31 \n\t"
"msub $ac1, %[temp0], %[cospi_24_64] \n\t"
"msub $ac1, %[temp1], %[cospi_8_64] \n\t"
"extp %[step3_20], $ac1, 31 \n\t"
: [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[step3_23] "=&r"(step3_23), [step3_24] "=&r"(step3_24),
[step3_20] "=&r"(step3_20), [step3_27] "=&r"(step3_27)
: [const_2_power_13] "r"(const_2_power_13), [step1_23] "r"(step1_23),
[step1_20] "r"(step1_20), [step1_24] "r"(step1_24),
[step1_27] "r"(step1_27), [cospi_24_64] "r"(cospi_24_64),
[cospi_8_64] "r"(cospi_8_64));
__asm__ __volatile__(
"mtlo %[const_2_power_13], $ac0 \n\t"
"mthi $zero, $ac0 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"sub %[temp0], %[step1_22], %[step1_21] \n\t"
"sub %[temp1], %[step1_25], %[step1_26] \n\t"
"add %[step3_22], %[step1_22], %[step1_21] \n\t"
"add %[step3_25], %[step1_25], %[step1_26] \n\t"
"msub $ac0, %[temp0], %[cospi_24_64] \n\t"
"msub $ac0, %[temp1], %[cospi_8_64] \n\t"
"extp %[step3_21], $ac0, 31 \n\t"
"msub $ac1, %[temp0], %[cospi_8_64] \n\t"
"madd $ac1, %[temp1], %[cospi_24_64] \n\t"
"extp %[step3_26], $ac1, 31 \n\t"
: [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[step3_22] "=&r"(step3_22), [step3_25] "=&r"(step3_25),
[step3_21] "=&r"(step3_21), [step3_26] "=&r"(step3_26)
: [const_2_power_13] "r"(const_2_power_13), [step1_22] "r"(step1_22),
[step1_21] "r"(step1_21), [step1_25] "r"(step1_25),
[step1_26] "r"(step1_26), [cospi_24_64] "r"(cospi_24_64),
[cospi_8_64] "r"(cospi_8_64));
__asm__ __volatile__(
"add %[step2_16], %[step3_16], %[step3_23] \n\t"
"add %[step2_17], %[step3_17], %[step3_22] \n\t"
"add %[step2_18], %[step3_18], %[step3_21] \n\t"
"add %[step2_19], %[step3_19], %[step3_20] \n\t"
"sub %[step2_20], %[step3_19], %[step3_20] \n\t"
"sub %[step2_21], %[step3_18], %[step3_21] \n\t"
"sub %[step2_22], %[step3_17], %[step3_22] \n\t"
"sub %[step2_23], %[step3_16], %[step3_23] \n\t"
: [step2_16] "=&r"(step2_16), [step2_17] "=&r"(step2_17),
[step2_18] "=&r"(step2_18), [step2_19] "=&r"(step2_19),
[step2_20] "=&r"(step2_20), [step2_21] "=&r"(step2_21),
[step2_22] "=&r"(step2_22), [step2_23] "=&r"(step2_23)
: [step3_16] "r"(step3_16), [step3_23] "r"(step3_23),
[step3_17] "r"(step3_17), [step3_22] "r"(step3_22),
[step3_18] "r"(step3_18), [step3_21] "r"(step3_21),
[step3_19] "r"(step3_19), [step3_20] "r"(step3_20));
__asm__ __volatile__(
"sub %[step2_24], %[step3_31], %[step3_24] \n\t"
"sub %[step2_25], %[step3_30], %[step3_25] \n\t"
"sub %[step2_26], %[step3_29], %[step3_26] \n\t"
"sub %[step2_27], %[step3_28], %[step3_27] \n\t"
"add %[step2_28], %[step3_28], %[step3_27] \n\t"
"add %[step2_29], %[step3_29], %[step3_26] \n\t"
"add %[step2_30], %[step3_30], %[step3_25] \n\t"
"add %[step2_31], %[step3_31], %[step3_24] \n\t"
: [step2_24] "=&r"(step2_24), [step2_28] "=&r"(step2_28),
[step2_25] "=&r"(step2_25), [step2_29] "=&r"(step2_29),
[step2_26] "=&r"(step2_26), [step2_30] "=&r"(step2_30),
[step2_27] "=&r"(step2_27), [step2_31] "=&r"(step2_31)
: [step3_31] "r"(step3_31), [step3_24] "r"(step3_24),
[step3_30] "r"(step3_30), [step3_25] "r"(step3_25),
[step3_29] "r"(step3_29), [step3_26] "r"(step3_26),
[step3_28] "r"(step3_28), [step3_27] "r"(step3_27));
__asm__ __volatile__(
"lh %[load1], 0(%[input]) \n\t"
"lh %[load2], 32(%[input]) \n\t"
"lh %[load3], 16(%[input]) \n\t"
"lh %[load4], 48(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"add %[result1], %[load1], %[load2] \n\t"
"sub %[result2], %[load1], %[load2] \n\t"
"madd $ac1, %[result1], %[cospi_16_64] \n\t"
"madd $ac2, %[result2], %[cospi_16_64] \n\t"
"extp %[temp0], $ac1, 31 \n\t"
"extp %[temp1], $ac2, 31 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac3, %[load3], %[cospi_24_64] \n\t"
"msub $ac3, %[load4], %[cospi_8_64] \n\t"
"extp %[temp2], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"madd $ac1, %[load3], %[cospi_8_64] \n\t"
"madd $ac1, %[load4], %[cospi_24_64] \n\t"
"extp %[temp3], $ac1, 31 \n\t"
"add %[step1_0], %[temp0], %[temp3] \n\t"
"add %[step1_1], %[temp1], %[temp2] \n\t"
"sub %[step1_2], %[temp1], %[temp2] \n\t"
"sub %[step1_3], %[temp0], %[temp3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [result1] "=&r"(result1),
[result2] "=&r"(result2), [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[temp2] "=&r"(temp2), [temp3] "=&r"(temp3), [step1_0] "=&r"(step1_0),
[step1_1] "=&r"(step1_1), [step1_2] "=&r"(step1_2),
[step1_3] "=&r"(step1_3)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_24_64] "r"(cospi_24_64), [cospi_8_64] "r"(cospi_8_64),
[cospi_16_64] "r"(cospi_16_64));
__asm__ __volatile__(
"lh %[load1], 8(%[input]) \n\t"
"lh %[load2], 56(%[input]) \n\t"
"lh %[load3], 40(%[input]) \n\t"
"lh %[load4], 24(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load1], %[cospi_28_64] \n\t"
"msub $ac1, %[load2], %[cospi_4_64] \n\t"
"extp %[temp0], $ac1, 31 \n\t"
"madd $ac3, %[load1], %[cospi_4_64] \n\t"
"madd $ac3, %[load2], %[cospi_28_64] \n\t"
"extp %[temp3], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac2, %[load3], %[cospi_12_64] \n\t"
"msub $ac2, %[load4], %[cospi_20_64] \n\t"
"extp %[temp1], $ac2, 31 \n\t"
"madd $ac1, %[load3], %[cospi_20_64] \n\t"
"madd $ac1, %[load4], %[cospi_12_64] \n\t"
"extp %[temp2], $ac1, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load1], %[temp3], %[temp2] \n\t"
"sub %[load1], %[load1], %[temp0] \n\t"
"add %[load1], %[load1], %[temp1] \n\t"
"sub %[load2], %[temp0], %[temp1] \n\t"
"sub %[load2], %[load2], %[temp2] \n\t"
"add %[load2], %[load2], %[temp3] \n\t"
"madd $ac1, %[load1], %[cospi_16_64] \n\t"
"madd $ac3, %[load2], %[cospi_16_64] \n\t"
"extp %[step1_5], $ac1, 31 \n\t"
"extp %[step1_6], $ac3, 31 \n\t"
"add %[step1_4], %[temp0], %[temp1] \n\t"
"add %[step1_7], %[temp3], %[temp2] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [temp0] "=&r"(temp0), [temp1] "=&r"(temp1),
[temp2] "=&r"(temp2), [temp3] "=&r"(temp3), [step1_4] "=&r"(step1_4),
[step1_5] "=&r"(step1_5), [step1_6] "=&r"(step1_6),
[step1_7] "=&r"(step1_7)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_20_64] "r"(cospi_20_64), [cospi_12_64] "r"(cospi_12_64),
[cospi_4_64] "r"(cospi_4_64), [cospi_28_64] "r"(cospi_28_64),
[cospi_16_64] "r"(cospi_16_64));
__asm__ __volatile__(
"add %[step2_0], %[step1_0], %[step1_7] \n\t"
"add %[step2_1], %[step1_1], %[step1_6] \n\t"
"add %[step2_2], %[step1_2], %[step1_5] \n\t"
"add %[step2_3], %[step1_3], %[step1_4] \n\t"
"sub %[step2_4], %[step1_3], %[step1_4] \n\t"
"sub %[step2_5], %[step1_2], %[step1_5] \n\t"
"sub %[step2_6], %[step1_1], %[step1_6] \n\t"
"sub %[step2_7], %[step1_0], %[step1_7] \n\t"
: [step2_0] "=&r"(step2_0), [step2_4] "=&r"(step2_4),
[step2_1] "=&r"(step2_1), [step2_5] "=&r"(step2_5),
[step2_2] "=&r"(step2_2), [step2_6] "=&r"(step2_6),
[step2_3] "=&r"(step2_3), [step2_7] "=&r"(step2_7)
: [step1_0] "r"(step1_0), [step1_7] "r"(step1_7),
[step1_1] "r"(step1_1), [step1_6] "r"(step1_6),
[step1_2] "r"(step1_2), [step1_5] "r"(step1_5),
[step1_3] "r"(step1_3), [step1_4] "r"(step1_4));
// stage 7
__asm__ __volatile__(
"add %[step1_0], %[step2_0], %[step3_15] \n\t"
"add %[step1_1], %[step2_1], %[step3_14] \n\t"
"add %[step1_2], %[step2_2], %[step3_13] \n\t"
"add %[step1_3], %[step2_3], %[step3_12] \n\t"
"sub %[step1_12], %[step2_3], %[step3_12] \n\t"
"sub %[step1_13], %[step2_2], %[step3_13] \n\t"
"sub %[step1_14], %[step2_1], %[step3_14] \n\t"
"sub %[step1_15], %[step2_0], %[step3_15] \n\t"
: [step1_0] "=&r"(step1_0), [step1_12] "=&r"(step1_12),
[step1_1] "=&r"(step1_1), [step1_13] "=&r"(step1_13),
[step1_2] "=&r"(step1_2), [step1_14] "=&r"(step1_14),
[step1_3] "=&r"(step1_3), [step1_15] "=&r"(step1_15)
: [step2_0] "r"(step2_0), [step3_15] "r"(step3_15),
[step2_1] "r"(step2_1), [step3_14] "r"(step3_14),
[step2_2] "r"(step2_2), [step3_13] "r"(step3_13),
[step2_3] "r"(step2_3), [step3_12] "r"(step3_12));
__asm__ __volatile__(
"add %[step1_4], %[step2_4], %[step3_11] \n\t"
"add %[step1_5], %[step2_5], %[step3_10] \n\t"
"add %[step1_6], %[step2_6], %[step3_9] \n\t"
"add %[step1_7], %[step2_7], %[step3_8] \n\t"
"sub %[step1_8], %[step2_7], %[step3_8] \n\t"
"sub %[step1_9], %[step2_6], %[step3_9] \n\t"
"sub %[step1_10], %[step2_5], %[step3_10] \n\t"
"sub %[step1_11], %[step2_4], %[step3_11] \n\t"
: [step1_4] "=&r"(step1_4), [step1_8] "=&r"(step1_8),
[step1_5] "=&r"(step1_5), [step1_9] "=&r"(step1_9),
[step1_6] "=&r"(step1_6), [step1_10] "=&r"(step1_10),
[step1_7] "=&r"(step1_7), [step1_11] "=&r"(step1_11)
: [step2_4] "r"(step2_4), [step3_11] "r"(step3_11),
[step2_5] "r"(step2_5), [step3_10] "r"(step3_10),
[step2_6] "r"(step2_6), [step3_9] "r"(step3_9),
[step2_7] "r"(step2_7), [step3_8] "r"(step3_8));
__asm__ __volatile__(
"sub %[temp0], %[step2_27], %[step2_20] \n\t"
"add %[temp1], %[step2_27], %[step2_20] \n\t"
"sub %[temp2], %[step2_26], %[step2_21] \n\t"
"add %[temp3], %[step2_26], %[step2_21] \n\t"
"mtlo %[const_2_power_13], $ac0 \n\t"
"mthi $zero, $ac0 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac0, %[temp0], %[cospi_16_64] \n\t"
"madd $ac1, %[temp1], %[cospi_16_64] \n\t"
"madd $ac2, %[temp2], %[cospi_16_64] \n\t"
"madd $ac3, %[temp3], %[cospi_16_64] \n\t"
"extp %[step1_20], $ac0, 31 \n\t"
"extp %[step1_27], $ac1, 31 \n\t"
"extp %[step1_21], $ac2, 31 \n\t"
"extp %[step1_26], $ac3, 31 \n\t"
: [temp0] "=&r"(temp0), [temp1] "=&r"(temp1), [temp2] "=&r"(temp2),
[temp3] "=&r"(temp3), [step1_20] "=&r"(step1_20),
[step1_27] "=&r"(step1_27), [step1_21] "=&r"(step1_21),
[step1_26] "=&r"(step1_26)
: [const_2_power_13] "r"(const_2_power_13), [step2_20] "r"(step2_20),
[step2_27] "r"(step2_27), [step2_21] "r"(step2_21),
[step2_26] "r"(step2_26), [cospi_16_64] "r"(cospi_16_64));
__asm__ __volatile__(
"sub %[temp0], %[step2_25], %[step2_22] \n\t"
"add %[temp1], %[step2_25], %[step2_22] \n\t"
"sub %[temp2], %[step2_24], %[step2_23] \n\t"
"add %[temp3], %[step2_24], %[step2_23] \n\t"
"mtlo %[const_2_power_13], $ac0 \n\t"
"mthi $zero, $ac0 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac0, %[temp0], %[cospi_16_64] \n\t"
"madd $ac1, %[temp1], %[cospi_16_64] \n\t"
"madd $ac2, %[temp2], %[cospi_16_64] \n\t"
"madd $ac3, %[temp3], %[cospi_16_64] \n\t"
"extp %[step1_22], $ac0, 31 \n\t"
"extp %[step1_25], $ac1, 31 \n\t"
"extp %[step1_23], $ac2, 31 \n\t"
"extp %[step1_24], $ac3, 31 \n\t"
: [temp0] "=&r"(temp0), [temp1] "=&r"(temp1), [temp2] "=&r"(temp2),
[temp3] "=&r"(temp3), [step1_22] "=&r"(step1_22),
[step1_25] "=&r"(step1_25), [step1_23] "=&r"(step1_23),
[step1_24] "=&r"(step1_24)
: [const_2_power_13] "r"(const_2_power_13), [step2_22] "r"(step2_22),
[step2_25] "r"(step2_25), [step2_23] "r"(step2_23),
[step2_24] "r"(step2_24), [cospi_16_64] "r"(cospi_16_64));
// final stage
__asm__ __volatile__(
"add %[temp0], %[step1_0], %[step2_31] \n\t"
"add %[temp1], %[step1_1], %[step2_30] \n\t"
"add %[temp2], %[step1_2], %[step2_29] \n\t"
"add %[temp3], %[step1_3], %[step2_28] \n\t"
"sub %[load1], %[step1_3], %[step2_28] \n\t"
"sub %[load2], %[step1_2], %[step2_29] \n\t"
"sub %[load3], %[step1_1], %[step2_30] \n\t"
"sub %[load4], %[step1_0], %[step2_31] \n\t"
"sh %[temp0], 0(%[output]) \n\t"
"sh %[temp1], 64(%[output]) \n\t"
"sh %[temp2], 128(%[output]) \n\t"
"sh %[temp3], 192(%[output]) \n\t"
"sh %[load1], 1792(%[output]) \n\t"
"sh %[load2], 1856(%[output]) \n\t"
"sh %[load3], 1920(%[output]) \n\t"
"sh %[load4], 1984(%[output]) \n\t"
: [temp0] "=&r"(temp0), [load1] "=&r"(load1), [temp1] "=&r"(temp1),
[load2] "=&r"(load2), [temp2] "=&r"(temp2), [load3] "=&r"(load3),
[temp3] "=&r"(temp3), [load4] "=&r"(load4)
: [step1_0] "r"(step1_0), [step2_31] "r"(step2_31),
[step1_1] "r"(step1_1), [step2_30] "r"(step2_30),
[step1_2] "r"(step1_2), [step2_29] "r"(step2_29),
[step1_3] "r"(step1_3), [step2_28] "r"(step2_28),
[output] "r"(output));
__asm__ __volatile__(
"add %[temp0], %[step1_4], %[step1_27] \n\t"
"add %[temp1], %[step1_5], %[step1_26] \n\t"
"add %[temp2], %[step1_6], %[step1_25] \n\t"
"add %[temp3], %[step1_7], %[step1_24] \n\t"
"sub %[load1], %[step1_7], %[step1_24] \n\t"
"sub %[load2], %[step1_6], %[step1_25] \n\t"
"sub %[load3], %[step1_5], %[step1_26] \n\t"
"sub %[load4], %[step1_4], %[step1_27] \n\t"
"sh %[temp0], 256(%[output]) \n\t"
"sh %[temp1], 320(%[output]) \n\t"
"sh %[temp2], 384(%[output]) \n\t"
"sh %[temp3], 448(%[output]) \n\t"
"sh %[load1], 1536(%[output]) \n\t"
"sh %[load2], 1600(%[output]) \n\t"
"sh %[load3], 1664(%[output]) \n\t"
"sh %[load4], 1728(%[output]) \n\t"
: [temp0] "=&r"(temp0), [load1] "=&r"(load1), [temp1] "=&r"(temp1),
[load2] "=&r"(load2), [temp2] "=&r"(temp2), [load3] "=&r"(load3),
[temp3] "=&r"(temp3), [load4] "=&r"(load4)
: [step1_4] "r"(step1_4), [step1_27] "r"(step1_27),
[step1_5] "r"(step1_5), [step1_26] "r"(step1_26),
[step1_6] "r"(step1_6), [step1_25] "r"(step1_25),
[step1_7] "r"(step1_7), [step1_24] "r"(step1_24),
[output] "r"(output));
__asm__ __volatile__(
"add %[temp0], %[step1_8], %[step1_23] \n\t"
"add %[temp1], %[step1_9], %[step1_22] \n\t"
"add %[temp2], %[step1_10], %[step1_21] \n\t"
"add %[temp3], %[step1_11], %[step1_20] \n\t"
"sub %[load1], %[step1_11], %[step1_20] \n\t"
"sub %[load2], %[step1_10], %[step1_21] \n\t"
"sub %[load3], %[step1_9], %[step1_22] \n\t"
"sub %[load4], %[step1_8], %[step1_23] \n\t"
"sh %[temp0], 512(%[output]) \n\t"
"sh %[temp1], 576(%[output]) \n\t"
"sh %[temp2], 640(%[output]) \n\t"
"sh %[temp3], 704(%[output]) \n\t"
"sh %[load1], 1280(%[output]) \n\t"
"sh %[load2], 1344(%[output]) \n\t"
"sh %[load3], 1408(%[output]) \n\t"
"sh %[load4], 1472(%[output]) \n\t"
: [temp0] "=&r"(temp0), [load1] "=&r"(load1), [temp1] "=&r"(temp1),
[load2] "=&r"(load2), [temp2] "=&r"(temp2), [load3] "=&r"(load3),
[temp3] "=&r"(temp3), [load4] "=&r"(load4)
: [step1_8] "r"(step1_8), [step1_23] "r"(step1_23),
[step1_9] "r"(step1_9), [step1_22] "r"(step1_22),
[step1_10] "r"(step1_10), [step1_21] "r"(step1_21),
[step1_11] "r"(step1_11), [step1_20] "r"(step1_20),
[output] "r"(output));
__asm__ __volatile__(
"add %[temp0], %[step1_12], %[step2_19] \n\t"
"add %[temp1], %[step1_13], %[step2_18] \n\t"
"add %[temp2], %[step1_14], %[step2_17] \n\t"
"add %[temp3], %[step1_15], %[step2_16] \n\t"
"sub %[load1], %[step1_15], %[step2_16] \n\t"
"sub %[load2], %[step1_14], %[step2_17] \n\t"
"sub %[load3], %[step1_13], %[step2_18] \n\t"
"sub %[load4], %[step1_12], %[step2_19] \n\t"
"sh %[temp0], 768(%[output]) \n\t"
"sh %[temp1], 832(%[output]) \n\t"
"sh %[temp2], 896(%[output]) \n\t"
"sh %[temp3], 960(%[output]) \n\t"
"sh %[load1], 1024(%[output]) \n\t"
"sh %[load2], 1088(%[output]) \n\t"
"sh %[load3], 1152(%[output]) \n\t"
"sh %[load4], 1216(%[output]) \n\t"
: [temp0] "=&r"(temp0), [load1] "=&r"(load1), [temp1] "=&r"(temp1),
[load2] "=&r"(load2), [temp2] "=&r"(temp2), [load3] "=&r"(load3),
[temp3] "=&r"(temp3), [load4] "=&r"(load4)
: [step1_12] "r"(step1_12), [step2_19] "r"(step2_19),
[step1_13] "r"(step1_13), [step2_18] "r"(step2_18),
[step1_14] "r"(step1_14), [step2_17] "r"(step2_17),
[step1_15] "r"(step1_15), [step2_16] "r"(step2_16),
[output] "r"(output));
input += 32;
output += 1;
}
}
void vpx_idct32x32_1024_add_dspr2(const int16_t *input, uint8_t *dest,
int stride) {
DECLARE_ALIGNED(32, int16_t, out[32 * 32]);
int16_t *outptr = out;
uint32_t pos = 45;
/* bit positon for extract from acc */
__asm__ __volatile__("wrdsp %[pos], 1 \n\t"
:
: [pos] "r"(pos));
// Rows
idct32_rows_dspr2(input, outptr, 32);
// Columns
vpx_idct32_cols_add_blk_dspr2(out, dest, stride);
}
void vpx_idct32x32_34_add_dspr2(const int16_t *input, uint8_t *dest,
int stride) {
DECLARE_ALIGNED(32, int16_t, out[32 * 32]);
int16_t *outptr = out;
uint32_t i;
uint32_t pos = 45;
/* bit positon for extract from acc */
__asm__ __volatile__("wrdsp %[pos], 1 \n\t"
:
: [pos] "r"(pos));
// Rows
idct32_rows_dspr2(input, outptr, 8);
outptr += 8;
__asm__ __volatile__(
"sw $zero, 0(%[outptr]) \n\t"
"sw $zero, 4(%[outptr]) \n\t"
"sw $zero, 8(%[outptr]) \n\t"
"sw $zero, 12(%[outptr]) \n\t"
"sw $zero, 16(%[outptr]) \n\t"
"sw $zero, 20(%[outptr]) \n\t"
"sw $zero, 24(%[outptr]) \n\t"
"sw $zero, 28(%[outptr]) \n\t"
"sw $zero, 32(%[outptr]) \n\t"
"sw $zero, 36(%[outptr]) \n\t"
"sw $zero, 40(%[outptr]) \n\t"
"sw $zero, 44(%[outptr]) \n\t"
:
: [outptr] "r"(outptr));
for (i = 0; i < 31; ++i) {
outptr += 32;
__asm__ __volatile__(
"sw $zero, 0(%[outptr]) \n\t"
"sw $zero, 4(%[outptr]) \n\t"
"sw $zero, 8(%[outptr]) \n\t"
"sw $zero, 12(%[outptr]) \n\t"
"sw $zero, 16(%[outptr]) \n\t"
"sw $zero, 20(%[outptr]) \n\t"
"sw $zero, 24(%[outptr]) \n\t"
"sw $zero, 28(%[outptr]) \n\t"
"sw $zero, 32(%[outptr]) \n\t"
"sw $zero, 36(%[outptr]) \n\t"
"sw $zero, 40(%[outptr]) \n\t"
"sw $zero, 44(%[outptr]) \n\t"
:
: [outptr] "r"(outptr));
}
// Columns
vpx_idct32_cols_add_blk_dspr2(out, dest, stride);
}
void vpx_idct32x32_1_add_dspr2(const int16_t *input, uint8_t *dest,
int stride) {
int r, out;
int32_t a1, absa1;
int32_t vector_a1;
int32_t t1, t2, t3, t4;
int32_t vector_1, vector_2, vector_3, vector_4;
uint32_t pos = 45;
/* bit positon for extract from acc */
__asm__ __volatile__("wrdsp %[pos], 1 \n\t"
:
: [pos] "r"(pos));
out = DCT_CONST_ROUND_SHIFT_TWICE_COSPI_16_64(input[0]);
__asm__ __volatile__(
"addi %[out], %[out], 32 \n\t"
"sra %[a1], %[out], 6 \n\t"
: [out] "+r"(out), [a1] "=r"(a1)
:);
if (a1 < 0) {
/* use quad-byte
* input and output memory are four byte aligned */
__asm__ __volatile__(
"abs %[absa1], %[a1] \n\t"
"replv.qb %[vector_a1], %[absa1] \n\t"
: [absa1] "=&r"(absa1), [vector_a1] "=&r"(vector_a1)
: [a1] "r"(a1));
for (r = 32; r--;) {
__asm__ __volatile__(
"lw %[t1], 0(%[dest]) \n\t"
"lw %[t2], 4(%[dest]) \n\t"
"lw %[t3], 8(%[dest]) \n\t"
"lw %[t4], 12(%[dest]) \n\t"
"subu_s.qb %[vector_1], %[t1], %[vector_a1] \n\t"
"subu_s.qb %[vector_2], %[t2], %[vector_a1] \n\t"
"subu_s.qb %[vector_3], %[t3], %[vector_a1] \n\t"
"subu_s.qb %[vector_4], %[t4], %[vector_a1] \n\t"
"sw %[vector_1], 0(%[dest]) \n\t"
"sw %[vector_2], 4(%[dest]) \n\t"
"sw %[vector_3], 8(%[dest]) \n\t"
"sw %[vector_4], 12(%[dest]) \n\t"
"lw %[t1], 16(%[dest]) \n\t"
"lw %[t2], 20(%[dest]) \n\t"
"lw %[t3], 24(%[dest]) \n\t"
"lw %[t4], 28(%[dest]) \n\t"
"subu_s.qb %[vector_1], %[t1], %[vector_a1] \n\t"
"subu_s.qb %[vector_2], %[t2], %[vector_a1] \n\t"
"subu_s.qb %[vector_3], %[t3], %[vector_a1] \n\t"
"subu_s.qb %[vector_4], %[t4], %[vector_a1] \n\t"
"sw %[vector_1], 16(%[dest]) \n\t"
"sw %[vector_2], 20(%[dest]) \n\t"
"sw %[vector_3], 24(%[dest]) \n\t"
"sw %[vector_4], 28(%[dest]) \n\t"
"add %[dest], %[dest], %[stride] \n\t"
: [t1] "=&r"(t1), [t2] "=&r"(t2), [t3] "=&r"(t3), [t4] "=&r"(t4),
[vector_1] "=&r"(vector_1), [vector_2] "=&r"(vector_2),
[vector_3] "=&r"(vector_3), [vector_4] "=&r"(vector_4),
[dest] "+&r"(dest)
: [stride] "r"(stride), [vector_a1] "r"(vector_a1));
}
} else if (a1 > 255) {
int32_t a11, a12, vector_a11, vector_a12;
/* use quad-byte
* input and output memory are four byte aligned */
a11 = a1 >> 1;
a12 = a1 - a11;
__asm__ __volatile__(
"replv.qb %[vector_a11], %[a11] \n\t"
"replv.qb %[vector_a12], %[a12] \n\t"
: [vector_a11] "=&r"(vector_a11), [vector_a12] "=&r"(vector_a12)
: [a11] "r"(a11), [a12] "r"(a12));
for (r = 32; r--;) {
__asm__ __volatile__(
"lw %[t1], 0(%[dest]) \n\t"
"lw %[t2], 4(%[dest]) \n\t"
"lw %[t3], 8(%[dest]) \n\t"
"lw %[t4], 12(%[dest]) \n\t"
"addu_s.qb %[vector_1], %[t1], %[vector_a11] \n\t"
"addu_s.qb %[vector_2], %[t2], %[vector_a11] \n\t"
"addu_s.qb %[vector_3], %[t3], %[vector_a11] \n\t"
"addu_s.qb %[vector_4], %[t4], %[vector_a11] \n\t"
"addu_s.qb %[vector_1], %[vector_1], %[vector_a12] \n\t"
"addu_s.qb %[vector_2], %[vector_2], %[vector_a12] \n\t"
"addu_s.qb %[vector_3], %[vector_3], %[vector_a12] \n\t"
"addu_s.qb %[vector_4], %[vector_4], %[vector_a12] \n\t"
"sw %[vector_1], 0(%[dest]) \n\t"
"sw %[vector_2], 4(%[dest]) \n\t"
"sw %[vector_3], 8(%[dest]) \n\t"
"sw %[vector_4], 12(%[dest]) \n\t"
"lw %[t1], 16(%[dest]) \n\t"
"lw %[t2], 20(%[dest]) \n\t"
"lw %[t3], 24(%[dest]) \n\t"
"lw %[t4], 28(%[dest]) \n\t"
"addu_s.qb %[vector_1], %[t1], %[vector_a11] \n\t"
"addu_s.qb %[vector_2], %[t2], %[vector_a11] \n\t"
"addu_s.qb %[vector_3], %[t3], %[vector_a11] \n\t"
"addu_s.qb %[vector_4], %[t4], %[vector_a11] \n\t"
"addu_s.qb %[vector_1], %[vector_1], %[vector_a12] \n\t"
"addu_s.qb %[vector_2], %[vector_2], %[vector_a12] \n\t"
"addu_s.qb %[vector_3], %[vector_3], %[vector_a12] \n\t"
"addu_s.qb %[vector_4], %[vector_4], %[vector_a12] \n\t"
"sw %[vector_1], 16(%[dest]) \n\t"
"sw %[vector_2], 20(%[dest]) \n\t"
"sw %[vector_3], 24(%[dest]) \n\t"
"sw %[vector_4], 28(%[dest]) \n\t"
"add %[dest], %[dest], %[stride] \n\t"
: [t1] "=&r"(t1), [t2] "=&r"(t2), [t3] "=&r"(t3), [t4] "=&r"(t4),
[vector_1] "=&r"(vector_1), [vector_2] "=&r"(vector_2),
[vector_3] "=&r"(vector_3), [vector_4] "=&r"(vector_4),
[dest] "+&r"(dest)
: [stride] "r"(stride), [vector_a11] "r"(vector_a11),
[vector_a12] "r"(vector_a12));
}
} else {
/* use quad-byte
* input and output memory are four byte aligned */
__asm__ __volatile__("replv.qb %[vector_a1], %[a1] \n\t"
: [vector_a1] "=&r"(vector_a1)
: [a1] "r"(a1));
for (r = 32; r--;) {
__asm__ __volatile__(
"lw %[t1], 0(%[dest]) \n\t"
"lw %[t2], 4(%[dest]) \n\t"
"lw %[t3], 8(%[dest]) \n\t"
"lw %[t4], 12(%[dest]) \n\t"
"addu_s.qb %[vector_1], %[t1], %[vector_a1] \n\t"
"addu_s.qb %[vector_2], %[t2], %[vector_a1] \n\t"
"addu_s.qb %[vector_3], %[t3], %[vector_a1] \n\t"
"addu_s.qb %[vector_4], %[t4], %[vector_a1] \n\t"
"sw %[vector_1], 0(%[dest]) \n\t"
"sw %[vector_2], 4(%[dest]) \n\t"
"sw %[vector_3], 8(%[dest]) \n\t"
"sw %[vector_4], 12(%[dest]) \n\t"
"lw %[t1], 16(%[dest]) \n\t"
"lw %[t2], 20(%[dest]) \n\t"
"lw %[t3], 24(%[dest]) \n\t"
"lw %[t4], 28(%[dest]) \n\t"
"addu_s.qb %[vector_1], %[t1], %[vector_a1] \n\t"
"addu_s.qb %[vector_2], %[t2], %[vector_a1] \n\t"
"addu_s.qb %[vector_3], %[t3], %[vector_a1] \n\t"
"addu_s.qb %[vector_4], %[t4], %[vector_a1] \n\t"
"sw %[vector_1], 16(%[dest]) \n\t"
"sw %[vector_2], 20(%[dest]) \n\t"
"sw %[vector_3], 24(%[dest]) \n\t"
"sw %[vector_4], 28(%[dest]) \n\t"
"add %[dest], %[dest], %[stride] \n\t"
: [t1] "=&r"(t1), [t2] "=&r"(t2), [t3] "=&r"(t3), [t4] "=&r"(t4),
[vector_1] "=&r"(vector_1), [vector_2] "=&r"(vector_2),
[vector_3] "=&r"(vector_3), [vector_4] "=&r"(vector_4),
[dest] "+&r"(dest)
: [stride] "r"(stride), [vector_a1] "r"(vector_a1));
}
}
}
#endif // #if HAVE_DSPR2