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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
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of either:
dnl
dnl * the GNU Lesser General Public License as published by the Free
dnl Software Foundation; either version 3 of the License, or (at your
dnl option) any later version.
dnl
dnl or
dnl
dnl * the GNU General Public License as published by the Free Software
dnl Foundation; either version 2 of the License, or (at your option) any
dnl later version.
dnl
dnl or both in parallel, as here.
dnl
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 General Public License
dnl for more details.
dnl
dnl You should have received copies of the GNU General Public License and the
dnl GNU Lesser General Public License along with the GNU MP Library. If not,
dnl see https://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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