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zswap.S
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/*********************************************************************/
/* Copyright 2009, 2010 The University of Texas at Austin. */
/* All rights reserved. */
/* */
/* 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. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
/* AUSTIN ``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 UNIVERSITY OF TEXAS AT */
/* AUSTIN OR CONTRIBUTORS 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. */
/* */
/* The views and conclusions contained in the software and */
/* documentation are those of the authors and should not be */
/* interpreted as representing official policies, either expressed */
/* or implied, of The University of Texas at Austin. */
/*********************************************************************/
#define ASSEMBLER
#include "common.h"
#define N $4
#define X $9
#define INCX $10
#define Y $11
#define INCY $8
#define I $2
#define TEMP $3
#define XX $5
#define YY $6
#define a1 $f0
#define a2 $f1
#define a3 $f2
#define a4 $f3
#define a5 $f4
#define a6 $f5
#define a7 $f6
#define a8 $f7
#define b1 $f8
#define b2 $f9
#define b3 $f10
#define b4 $f11
#define b5 $f12
#define b6 $f13
#define b7 $f14
#define b8 $f15
PROLOGUE
LDARG INCY, 0($sp)
li TEMP, 2 * SIZE
blez N, .L999
dsll INCX, INCX, ZBASE_SHIFT
bne INCX, TEMP, .L20
dsll INCY, INCY, ZBASE_SHIFT
bne INCY, TEMP, .L20
dsra I, N, 2
blez I, .L15
daddiu I, I, -1
LD a1, 0 * SIZE(X)
LD b1, 0 * SIZE(Y)
LD a2, 1 * SIZE(X)
LD b2, 1 * SIZE(Y)
LD a3, 2 * SIZE(X)
LD b3, 2 * SIZE(Y)
LD a4, 3 * SIZE(X)
LD b4, 3 * SIZE(Y)
LD a5, 4 * SIZE(X)
LD b5, 4 * SIZE(Y)
LD a6, 5 * SIZE(X)
LD b6, 5 * SIZE(Y)
LD a7, 6 * SIZE(X)
LD b7, 6 * SIZE(Y)
LD a8, 7 * SIZE(X)
LD b8, 7 * SIZE(Y)
blez I, .L13
NOP
.align 3
.L12:
ST a1, 0 * SIZE(Y)
LD a1, 8 * SIZE(X)
ST b1, 0 * SIZE(X)
LD b1, 8 * SIZE(Y)
ST a2, 1 * SIZE(Y)
LD a2, 9 * SIZE(X)
ST b2, 1 * SIZE(X)
LD b2, 9 * SIZE(Y)
ST a3, 2 * SIZE(Y)
LD a3, 10 * SIZE(X)
ST b3, 2 * SIZE(X)
LD b3, 10 * SIZE(Y)
ST a4, 3 * SIZE(Y)
LD a4, 11 * SIZE(X)
ST b4, 3 * SIZE(X)
LD b4, 11 * SIZE(Y)
ST a5, 4 * SIZE(Y)
LD a5, 12 * SIZE(X)
ST b5, 4 * SIZE(X)
LD b5, 12 * SIZE(Y)
ST a6, 5 * SIZE(Y)
LD a6, 13 * SIZE(X)
ST b6, 5 * SIZE(X)
LD b6, 13 * SIZE(Y)
ST a7, 6 * SIZE(Y)
LD a7, 14 * SIZE(X)
ST b7, 6 * SIZE(X)
LD b7, 14 * SIZE(Y)
ST a8, 7 * SIZE(Y)
LD a8, 15 * SIZE(X)
ST b8, 7 * SIZE(X)
LD b8, 15 * SIZE(Y)
daddiu I, I, -1
daddiu X, X, 8 * SIZE
bgtz I, .L12
daddiu Y, Y, 8 * SIZE
.align 3
.L13:
ST a1, 0 * SIZE(Y)
ST b1, 0 * SIZE(X)
ST a2, 1 * SIZE(Y)
ST b2, 1 * SIZE(X)
ST a3, 2 * SIZE(Y)
ST b3, 2 * SIZE(X)
ST a4, 3 * SIZE(Y)
ST b4, 3 * SIZE(X)
ST a5, 4 * SIZE(Y)
ST b5, 4 * SIZE(X)
ST a6, 5 * SIZE(Y)
ST b6, 5 * SIZE(X)
ST a7, 6 * SIZE(Y)
ST b7, 6 * SIZE(X)
ST a8, 7 * SIZE(Y)
ST b8, 7 * SIZE(X)
daddiu X, X, 8 * SIZE
daddiu Y, Y, 8 * SIZE
.align 3
.L15:
andi I, N, 3
blez I, .L999
NOP
.align 3
.L16:
LD a1, 0 * SIZE(X)
LD b1, 0 * SIZE(Y)
LD a2, 1 * SIZE(X)
LD b2, 1 * SIZE(Y)
daddiu X, X, 2 * SIZE
daddiu I, I, -1
daddiu Y, Y, 2 * SIZE
ST b1, -2 * SIZE(X)
ST b2, -1 * SIZE(X)
ST a1, -2 * SIZE(Y)
bgtz I, .L16
ST a2, -1 * SIZE(Y)
j .L999
NOP
.align 3
.L20:
dsra I, N, 2
move XX, X
move YY, Y
blez I, .L25
daddiu I, I, -1
LD a1, 0 * SIZE(X)
LD b1, 0 * SIZE(Y)
LD a2, 1 * SIZE(X)
LD b2, 1 * SIZE(Y)
daddu X, X, INCX
daddu Y, Y, INCY
LD a3, 0 * SIZE(X)
LD b3, 0 * SIZE(Y)
LD a4, 1 * SIZE(X)
LD b4, 1 * SIZE(Y)
daddu X, X, INCX
daddu Y, Y, INCY
LD a5, 0 * SIZE(X)
LD b5, 0 * SIZE(Y)
LD a6, 1 * SIZE(X)
LD b6, 1 * SIZE(Y)
daddu X, X, INCX
daddu Y, Y, INCY
LD a7, 0 * SIZE(X)
LD b7, 0 * SIZE(Y)
LD a8, 1 * SIZE(X)
LD b8, 1 * SIZE(Y)
daddu X, X, INCX
daddu Y, Y, INCY
blez I, .L23
NOP
.align 3
.L22:
ST a1, 0 * SIZE(YY)
LD a1, 0 * SIZE(X)
ST b1, 0 * SIZE(XX)
LD b1, 0 * SIZE(Y)
ST a2, 1 * SIZE(YY)
daddu YY, YY, INCY
LD a2, 1 * SIZE(X)
daddu X, X, INCX
ST b2, 1 * SIZE(XX)
daddu XX, XX, INCX
LD b2, 1 * SIZE(Y)
daddu Y, Y, INCY
ST a3, 0 * SIZE(YY)
LD a3, 0 * SIZE(X)
ST b3, 0 * SIZE(XX)
LD b3, 0 * SIZE(Y)
ST a4, 1 * SIZE(YY)
daddu YY, YY, INCY
LD a4, 1 * SIZE(X)
daddu X, X, INCX
ST b4, 1 * SIZE(XX)
daddu XX, XX, INCX
LD b4, 1 * SIZE(Y)
daddu Y, Y, INCY
ST a5, 0 * SIZE(YY)
LD a5, 0 * SIZE(X)
ST b5, 0 * SIZE(XX)
LD b5, 0 * SIZE(Y)
ST a6, 1 * SIZE(YY)
daddu YY, YY, INCY
LD a6, 1 * SIZE(X)
daddu X, X, INCX
ST b6, 1 * SIZE(XX)
daddu XX, XX, INCX
LD b6, 1 * SIZE(Y)
daddu Y, Y, INCY
ST a7, 0 * SIZE(YY)
LD a7, 0 * SIZE(X)
ST b7, 0 * SIZE(XX)
LD b7, 0 * SIZE(Y)
ST a8, 1 * SIZE(YY)
daddu YY, YY, INCY
LD a8, 1 * SIZE(X)
daddu X, X, INCX
ST b8, 1 * SIZE(XX)
daddu XX, XX, INCX
LD b8, 1 * SIZE(Y)
daddiu I, I, -1
bgtz I, .L22
daddu Y, Y, INCY
.align 3
.L23:
ST a1, 0 * SIZE(YY)
ST b1, 0 * SIZE(XX)
ST a2, 1 * SIZE(YY)
ST b2, 1 * SIZE(XX)
daddu YY, YY, INCY
daddu XX, XX, INCX
ST a3, 0 * SIZE(YY)
ST b3, 0 * SIZE(XX)
ST a4, 1 * SIZE(YY)
ST b4, 1 * SIZE(XX)
daddu YY, YY, INCY
daddu XX, XX, INCX
ST a5, 0 * SIZE(YY)
ST b5, 0 * SIZE(XX)
ST a6, 1 * SIZE(YY)
ST b6, 1 * SIZE(XX)
daddu YY, YY, INCY
daddu XX, XX, INCX
ST a7, 0 * SIZE(YY)
ST b7, 0 * SIZE(XX)
ST a8, 1 * SIZE(YY)
ST b8, 1 * SIZE(XX)
daddu YY, YY, INCY
daddu XX, XX, INCX
.align 3
.L25:
andi I, N, 3
blez I, .L999
NOP
.align 3
.L26:
LD a1, 0 * SIZE(X)
LD a2, 1 * SIZE(X)
LD b1, 0 * SIZE(Y)
LD b2, 1 * SIZE(Y)
daddiu I, I, -1
ST a1, 0 * SIZE(Y)
ST a2, 1 * SIZE(Y)
daddu Y, Y, INCY
ST b1, 0 * SIZE(X)
ST b2, 1 * SIZE(X)
bgtz I, .L26
daddu X, X, INCX
.align 3
.L999:
j $31
NOP
EPILOGUE