| dnl SPARC v9 mpn_copyd -- Copy a limb vector, decrementing. |
| |
| dnl Copyright 1999-2003 Free Software Foundation, Inc. |
| |
| dnl This file is part of the GNU MP Library. |
| dnl |
| dnl The GNU MP Library is free software; you can redistribute it and/or modify |
| dnl it under the terms of either: |
| dnl |
| dnl * the GNU Lesser General Public License as published by the Free |
| dnl Software Foundation; either version 3 of the License, or (at your |
| dnl option) any later version. |
| dnl |
| dnl or |
| dnl |
| dnl * the GNU General Public License as published by the Free Software |
| dnl Foundation; either version 2 of the License, or (at your option) any |
| dnl later version. |
| dnl |
| dnl or both in parallel, as here. |
| dnl |
| 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 General Public License |
| dnl for more details. |
| dnl |
| dnl You should have received copies of the GNU General Public License and the |
| dnl GNU Lesser General Public License along with the GNU MP Library. If not, |
| dnl see https://www.gnu.org/licenses/. |
| |
| include(`../config.m4') |
| |
| C cycles/limb |
| C UltraSPARC 1&2: 2 |
| C UltraSPARC 3: 2.5 |
| C UltraSPARC T1: 17 |
| C UltraSPARC T3: 6 |
| C UltraSPARC T4/T5: 2 |
| |
| C INPUT PARAMETERS |
| C rptr %o0 |
| C sptr %o1 |
| C n %o2 |
| |
| ASM_START() |
| REGISTER(%g2,#scratch) |
| REGISTER(%g3,#scratch) |
| PROLOGUE(mpn_copyd) |
| sllx %o2,3,%g1 |
| add %g1,%o0,%o0 |
| add %g1,%o1,%o1 |
| addcc %o2,-8,%o2 |
| bl,pt %xcc,L(end01234567) |
| nop |
| L(loop1): |
| ldx [%o1-8],%g1 |
| ldx [%o1-16],%g2 |
| ldx [%o1-24],%g3 |
| ldx [%o1-32],%g4 |
| ldx [%o1-40],%g5 |
| ldx [%o1-48],%o3 |
| ldx [%o1-56],%o4 |
| ldx [%o1-64],%o5 |
| add %o1,-64,%o1 |
| stx %g1,[%o0-8] |
| stx %g2,[%o0-16] |
| stx %g3,[%o0-24] |
| stx %g4,[%o0-32] |
| stx %g5,[%o0-40] |
| stx %o3,[%o0-48] |
| stx %o4,[%o0-56] |
| stx %o5,[%o0-64] |
| addcc %o2,-8,%o2 |
| bge,pt %xcc,L(loop1) |
| add %o0,-64,%o0 |
| L(end01234567): |
| addcc %o2,8,%o2 |
| bz,pn %xcc,L(end) |
| nop |
| L(loop2): |
| ldx [%o1-8],%g1 |
| add %o1,-8,%o1 |
| addcc %o2,-1,%o2 |
| stx %g1,[%o0-8] |
| bg,pt %xcc,L(loop2) |
| add %o0,-8,%o0 |
| L(end): retl |
| nop |
| EPILOGUE(mpn_copyd) |