1dnl SPARC v9 mpn_copyd -- Copy a limb vector, decrementing. 2 3dnl Copyright 1999-2003 Free Software Foundation, Inc. 4 5dnl This file is part of the GNU MP Library. 6dnl 7dnl The GNU MP Library is free software; you can redistribute it and/or modify 8dnl it under the terms of either: 9dnl 10dnl * the GNU Lesser General Public License as published by the Free 11dnl Software Foundation; either version 3 of the License, or (at your 12dnl option) any later version. 13dnl 14dnl or 15dnl 16dnl * the GNU General Public License as published by the Free Software 17dnl Foundation; either version 2 of the License, or (at your option) any 18dnl later version. 19dnl 20dnl or both in parallel, as here. 21dnl 22dnl The GNU MP Library is distributed in the hope that it will be useful, but 23dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 24dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 25dnl for more details. 26dnl 27dnl You should have received copies of the GNU General Public License and the 28dnl GNU Lesser General Public License along with the GNU MP Library. If not, 29dnl see https://www.gnu.org/licenses/. 30 31include(`../config.m4') 32 33C cycles/limb 34C UltraSPARC 1&2: 2 35C UltraSPARC 3: 2.5 36C UltraSPARC T1: 17 37C UltraSPARC T3: 6 38C UltraSPARC T4/T5: 2 39 40C INPUT PARAMETERS 41C rptr %o0 42C sptr %o1 43C n %o2 44 45ASM_START() 46 REGISTER(%g2,#scratch) 47 REGISTER(%g3,#scratch) 48PROLOGUE(mpn_copyd) 49 sllx %o2,3,%g1 50 add %g1,%o0,%o0 51 add %g1,%o1,%o1 52 addcc %o2,-8,%o2 53 bl,pt %xcc,L(end01234567) 54 nop 55L(loop1): 56 ldx [%o1-8],%g1 57 ldx [%o1-16],%g2 58 ldx [%o1-24],%g3 59 ldx [%o1-32],%g4 60 ldx [%o1-40],%g5 61 ldx [%o1-48],%o3 62 ldx [%o1-56],%o4 63 ldx [%o1-64],%o5 64 add %o1,-64,%o1 65 stx %g1,[%o0-8] 66 stx %g2,[%o0-16] 67 stx %g3,[%o0-24] 68 stx %g4,[%o0-32] 69 stx %g5,[%o0-40] 70 stx %o3,[%o0-48] 71 stx %o4,[%o0-56] 72 stx %o5,[%o0-64] 73 addcc %o2,-8,%o2 74 bge,pt %xcc,L(loop1) 75 add %o0,-64,%o0 76L(end01234567): 77 addcc %o2,8,%o2 78 bz,pn %xcc,L(end) 79 nop 80L(loop2): 81 ldx [%o1-8],%g1 82 add %o1,-8,%o1 83 addcc %o2,-1,%o2 84 stx %g1,[%o0-8] 85 bg,pt %xcc,L(loop2) 86 add %o0,-8,%o0 87L(end): retl 88 nop 89EPILOGUE(mpn_copyd) 90