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  • Committer: Bazaar Package Importer
  • Author(s): Peter Van Eynde
  • Date: 2007-04-09 11:51:51 UTC
  • mfrom: (1.1.3 upstream)
  • Revision ID: james.westby@ubuntu.com-20070409115151-ql8cr0kalzx1jmla
Tags: 0.9i-20070324-2
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src/gmp/mpn/alpha/copyd.asm
 
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dnl  Alpha mpn_copyd -- copy, decrementing.
 
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dnl  Copyright 2002, 2003 Free Software Foundation, Inc.
 
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dnl  This file is part of the GNU MP Library.
 
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dnl  The GNU MP Library is free software; you can redistribute it and/or modify
 
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dnl  it under the terms of the GNU Lesser General Public License as published
 
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dnl  by the Free Software Foundation; either version 2.1 of the License, or (at
 
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dnl  your option) any later version.
 
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dnl  The GNU MP Library is distributed in the hope that it will be useful, but
 
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dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 
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dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
 
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dnl  License for more details.
 
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dnl  You should have received a copy of the GNU Lesser General Public License
 
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dnl  along with the GNU MP Library; see the file COPYING.LIB.  If not, write
 
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dnl  to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 
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dnl  Boston, MA 02110-1301, USA.
 
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include(`../config.m4')
 
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C      cycles/limb
 
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C EV4:     4
 
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C EV5:     1.75
 
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C EV6:     1
 
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C INPUT PARAMETERS
 
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C rp    r16
 
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C up    r17
 
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C n     r18
 
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ASM_START()
 
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PROLOGUE(mpn_copyd)
 
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        s8addq  r18,r16,r16             C E0
 
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        s8addq  r18,r17,r17             C E1
 
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        lda     r18,-8(r18)             C E0
 
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        blt     r18,$Lend               C E1
 
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$Loop:  ldq     r0,-8(r17)              C E0
 
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        ldq     r1,-16(r17)             C E1
 
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        ldq     r2,-24(r17)             C E0
 
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        ldq     r3,-32(r17)             C E1
 
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        ldq     r4,-40(r17)             C E0
 
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        ldq     r5,-48(r17)             C E1
 
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        ldq     r6,-56(r17)             C E0
 
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        ldq     r7,-64(r17)             C E1
 
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        stq     r0,-8(r16)              C E0
 
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        lda     r17,-64(r17)            C E1
 
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        stq     r1,-16(r16)             C E0
 
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        bis     r31, r31, r31           C E1
 
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        stq     r2,-24(r16)             C E0
 
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        lda     r18,-8(r18)             C E1
 
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        stq     r3,-32(r16)             C E0
 
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        bis     r31, r31, r31           C E1
 
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        stq     r4,-40(r16)             C E0
 
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        bis     r31, r31, r31           C E1
 
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        stq     r5,-48(r16)             C E0
 
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        bis     r31, r31, r31           C E1
 
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        stq     r6,-56(r16)             C E0
 
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        bis     r31, r31, r31           C E1
 
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        stq     r7,-64(r16)             C E0
 
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        lda     r16,-64(r16)            C E1
 
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        bge     r18,$Loop               C E1
 
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$Lend:  lda     r18,7(r18)              C E0
 
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        blt     r18,$Lret               C E1
 
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        ldq     r0,-8(r17)              C E0
 
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        beq     r18,$Lend0              C E1
 
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$Loop0: stq     r0,-8(r16)              C E0
 
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        lda     r16,-8(r16)             C E1
 
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        ldq     r0,-16(r17)             C E0
 
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        lda     r18,-1(r18)             C E1
 
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        lda     r17,-8(r17)             C E0
 
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        bgt     r18,$Loop0              C E1
 
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$Lend0: stq     r0,-8(r16)              C E0
 
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$Lret:  ret     r31,(r26),1             C E1
 
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EPILOGUE(mpn_copyd)
 
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ASM_END()