| dnl VAX mpn_rshift -- right shift. |
| |
| dnl Copyright 1999-2001, 2012 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') |
| |
| ASM_START() |
| PROLOGUE(mpn_rshift) |
| .word 0x1c0 |
| movl 4(ap), r7 |
| movl 8(ap), r6 |
| movl 12(ap), r1 |
| movl 16(ap), r8 |
| |
| movl (r6)+, r2 |
| subl3 r8, $32, r8 |
| ashl r8, r2, r0 |
| decl r1 |
| jeql L(end) |
| |
| L(top): movl (r6)+, r3 |
| ashq r8, r2, r4 |
| movl r5, (r7)+ |
| movl r3, r2 |
| sobgtr r1, L(top) |
| |
| L(end): clrl r3 |
| ashq r8, r2, r4 |
| movl r5, (r7) |
| ret |
| EPILOGUE() |