1dnl PowerPC-64 mpn_copyi. 2 3dnl Copyright 2004, 2005 Free Software Foundation, Inc. 4 5dnl This file is part of the GNU MP Library. 6 7dnl The GNU MP Library is free software; you can redistribute it and/or modify 8dnl it under the terms of the GNU Lesser General Public License as published 9dnl by the Free Software Foundation; either version 3 of the License, or (at 10dnl your option) any later version. 11 12dnl The GNU MP Library is distributed in the hope that it will be useful, but 13dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 15dnl License for more details. 16 17dnl You should have received a copy of the GNU Lesser General Public License 18dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. 19 20include(`../config.m4') 21 22C cycles/limb 23C POWER3/PPC630 1 24C POWER4/PPC970 1 25C POWER5 ? 26C POWER6 ? 27C POWER7 1.4 28 29C INPUT PARAMETERS 30C rp r3 31C up r4 32C n r5 33 34ASM_START() 35PROLOGUE(mpn_copyi) 36 rldic. r0, r5, 3, 59 C r0 = (r5 & 3) << 3; cr0 = (n == 4t)? 37 cmpldi cr6, r0, 16 C cr6 = (n cmp 4t + 2)? 38 39 addi r5, r5, 4 C compute... 40ifdef(`HAVE_ABI_mode32', 41` rldicl r5, r5, 62,34', C ...branch count 42` rldicl r5, r5, 62, 2') C ...branch count 43 mtctr r5 44 45 add r4, r4, r0 C offset up 46 add r3, r3, r0 C offset rp 47 48 beq cr0, L(L00) 49 blt cr6, L(L01) 50 beq cr6, L(L10) 51 b L(L11) 52 53 ALIGN(16) 54L(oop): ld r6, -32(r4) 55 std r6, -32(r3) 56L(L11): ld r6, -24(r4) 57 std r6, -24(r3) 58L(L10): ld r6, -16(r4) 59 std r6, -16(r3) 60L(L01): ld r6, -8(r4) 61 std r6, -8(r3) 62L(L00): addi r4, r4, 32 63 addi r3, r3, 32 64 bdnz L(oop) 65 66 blr 67EPILOGUE() 68