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addmul_1.asm
Package: gmp-5.0.1.tar.gz [view]
Upload User: qaz666999
Upload Date: 2022-08-06
Package Size: 2570k
Code Size: 2k
Category:
Algorithm
Development Platform:
Unix_Linux
- dnl PowerPC-64 mpn_addmul_1 -- Multiply a limb vector with a limb and add
- dnl the result to a second limb vector.
- dnl Copyright 1999, 2000, 2001, 2003, 2005 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 POWER3/PPC630: ?
- C POWER4/PPC970: 12.5
- C INPUT PARAMETERS
- C rp r3
- C up r4
- C n r5
- C v r6,r7 or r7,r8
- ASM_START()
- PROLOGUE(mpn_addmul_1)
- ifdef(`BROKEN_LONGLONG_PARAM',
- ` rldimi r8, r7, 32,0 C assemble vlimb from separate 32-bit arguments
- mr r6, r8
- ',`
- rldimi r7, r6, 32,0 C assemble vlimb from separate 32-bit arguments
- mr r6, r7
- ')
- li r7, 0 C cy_limb = 0
- mtctr r5
- addic r0, r0, 0
- addi r3, r3, -8
- addi r4, r4, -8
- L(oop): ldu r0, 8(r4)
- mulld r9, r0, r6
- adde r12, r9, r7 C add old high limb and new low limb
- srdi r5, r9, 32
- srdi r11, r7, 32
- adde r5, r5, r11 C add high limb parts, set cy
- mulhdu r7, r0, r6
- addze r7, r7
- ld r10, 8(r3)
- addc r9, r12, r10
- srdi r5, r12, 32
- srdi r11, r10, 32
- adde r5, r5, r11 C add high limb parts, set cy
- stdu r9, 8(r3)
- bdnz L(oop)
- addze r4, r7
- srdi r3, r4, 32
- blr
- EPILOGUE()