1dnl PowerPC-64 mpn_mul_1 -- Multiply a limb vector with a limb and add 2dnl the result to a second limb vector. 3 4dnl Copyright 1999-2001, 2003, 2005 Free Software Foundation, Inc. 5 6dnl This file is part of the GNU MP Library. 7dnl 8dnl The GNU MP Library is free software; you can redistribute it and/or modify 9dnl it under the terms of either: 10dnl 11dnl * the GNU Lesser General Public License as published by the Free 12dnl Software Foundation; either version 3 of the License, or (at your 13dnl option) any later version. 14dnl 15dnl or 16dnl 17dnl * the GNU General Public License as published by the Free Software 18dnl Foundation; either version 2 of the License, or (at your option) any 19dnl later version. 20dnl 21dnl or both in parallel, as here. 22dnl 23dnl The GNU MP Library is distributed in the hope that it will be useful, but 24dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 25dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 26dnl for more details. 27dnl 28dnl You should have received copies of the GNU General Public License and the 29dnl GNU Lesser General Public License along with the GNU MP Library. If not, 30dnl see https://www.gnu.org/licenses/. 31 32include(`../config.m4') 33 34C cycles/limb 35C POWER3/PPC630: ? 36C POWER4/PPC970: 10 37 38C INPUT PARAMETERS 39C rp r3 40C up r4 41C n r5 42C v r6,r7 or r7,r8 43 44ASM_START() 45PROLOGUE(mpn_mul_1) 46 47ifdef(`BROKEN_LONGLONG_PARAM', 48` rldimi r8, r7, 32,0 C assemble vlimb from separate 32-bit arguments 49 mr r6, r8 50',` 51 rldimi r7, r6, 32,0 C assemble vlimb from separate 32-bit arguments 52 mr r6, r7 53') 54 li r7, 0 C cy_limb = 0 55 mtctr r5 56 addic r0, r0, 0 57 addi r3, r3, -8 58 addi r4, r4, -8 59 60L(oop): ldu r0, 8(r4) 61 mulld r9, r0, r6 62 adde r12, r9, r7 C add old high limb and new low limb 63 srdi r5, r9, 32 64 srdi r11, r7, 32 65 adde r5, r5, r11 C add high limb parts, set cy 66 mulhdu r7, r0, r6 67 stdu r12, 8(r3) 68 bdnz L(oop) 69 70 addze r4, r7 71 srdi r3, r4, 32 72 blr 73EPILOGUE() 74