| Austin Schuh | bb1338c | 2024-06-15 19:31:16 -0700 | [diff] [blame] | 1 | dnl VAX mpn_lshift -- left shift. |
| 2 | |
| 3 | dnl Copyright 1999-2001, 2012 Free Software Foundation, Inc. |
| 4 | |
| 5 | dnl This file is part of the GNU MP Library. |
| 6 | dnl |
| 7 | dnl The GNU MP Library is free software; you can redistribute it and/or modify |
| 8 | dnl it under the terms of either: |
| 9 | dnl |
| 10 | dnl * the GNU Lesser General Public License as published by the Free |
| 11 | dnl Software Foundation; either version 3 of the License, or (at your |
| 12 | dnl option) any later version. |
| 13 | dnl |
| 14 | dnl or |
| 15 | dnl |
| 16 | dnl * the GNU General Public License as published by the Free Software |
| 17 | dnl Foundation; either version 2 of the License, or (at your option) any |
| 18 | dnl later version. |
| 19 | dnl |
| 20 | dnl or both in parallel, as here. |
| 21 | dnl |
| 22 | dnl The GNU MP Library is distributed in the hope that it will be useful, but |
| 23 | dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 24 | dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 25 | dnl for more details. |
| 26 | dnl |
| 27 | dnl You should have received copies of the GNU General Public License and the |
| 28 | dnl GNU Lesser General Public License along with the GNU MP Library. If not, |
| 29 | dnl see https://www.gnu.org/licenses/. |
| 30 | |
| 31 | include(`../config.m4') |
| 32 | |
| 33 | ASM_START() |
| 34 | PROLOGUE(mpn_lshift) |
| 35 | .word 0x1c0 |
| 36 | movl 4(ap), r7 |
| 37 | movl 8(ap), r6 |
| 38 | movl 12(ap), r1 |
| 39 | movl 16(ap), r8 |
| 40 | |
| 41 | moval (r6)[r1], r6 |
| 42 | moval (r7)[r1], r7 |
| 43 | clrl r3 |
| 44 | movl -(r6), r2 |
| 45 | ashq r8, r2, r4 |
| 46 | movl r5, r0 |
| 47 | movl r2, r3 |
| 48 | decl r1 |
| 49 | jeql L(end) |
| 50 | |
| 51 | L(top): movl -(r6), r2 |
| 52 | ashq r8, r2, r4 |
| 53 | movl r5, -(r7) |
| 54 | movl r2, r3 |
| 55 | sobgtr r1, L(top) |
| 56 | |
| 57 | L(end): movl r4, -4(r7) |
| 58 | ret |
| 59 | EPILOGUE() |