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dnl Alpha mpn_copyd -- copy, decrementing.
dnl Copyright 2002, 2003 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU Lesser General Public License as published
dnl by the Free Software Foundation; either version 3 of the License, or (at
dnl your option) any later version.
dnl The GNU MP Library is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
dnl License for more details.
dnl You should have received a copy of the GNU Lesser General Public License
dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
include(`../config.m4')
C cycles/limb
C EV4: 4
C EV5: 1.75
C EV6: 1
C INPUT PARAMETERS
C rp r16
C up r17
C n r18
ASM_START()
PROLOGUE(mpn_copyd)
s8addq r18,r16,r16 C E0
s8addq r18,r17,r17 C E1
lda r18,-8(r18) C E0
blt r18,$Lend C E1
$Loop: ldq r0,-8(r17) C E0
ldq r1,-16(r17) C E1
ldq r2,-24(r17) C E0
ldq r3,-32(r17) C E1
ldq r4,-40(r17) C E0
ldq r5,-48(r17) C E1
ldq r6,-56(r17) C E0
ldq r7,-64(r17) C E1
stq r0,-8(r16) C E0
lda r17,-64(r17) C E1
stq r1,-16(r16) C E0
bis r31, r31, r31 C E1
stq r2,-24(r16) C E0
lda r18,-8(r18) C E1
stq r3,-32(r16) C E0
bis r31, r31, r31 C E1
stq r4,-40(r16) C E0
bis r31, r31, r31 C E1
stq r5,-48(r16) C E0
bis r31, r31, r31 C E1
stq r6,-56(r16) C E0
bis r31, r31, r31 C E1
stq r7,-64(r16) C E0
lda r16,-64(r16) C E1
bge r18,$Loop C E1
$Lend: lda r18,7(r18) C E0
blt r18,$Lret C E1
ldq r0,-8(r17) C E0
beq r18,$Lend0 C E1
$Loop0: stq r0,-8(r16) C E0
lda r16,-8(r16) C E1
ldq r0,-16(r17) C E0
lda r18,-1(r18) C E1
lda r17,-8(r17) C E0
bgt r18,$Loop0 C E1
$Lend0: stq r0,-8(r16) C E0
$Lret: ret r31,(r26),1 C E1
EPILOGUE(mpn_copyd)
ASM_END()
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