copyd.asm
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上传日期:2022-08-06
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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()