| /* |
| * Copyright (C) 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <linux/linkage.h> |
| |
| ENTRY(__ashlti3) |
| cbz x2, 1f |
| mov x3, #64 |
| sub x3, x3, x2 |
| cmp x3, #0 |
| b.le 2f |
| lsl x1, x1, x2 |
| lsr x3, x0, x3 |
| lsl x2, x0, x2 |
| orr x1, x1, x3 |
| mov x0, x2 |
| 1: |
| ret |
| 2: |
| neg w1, w3 |
| mov x2, #0 |
| lsl x1, x0, x1 |
| mov x0, x2 |
| ret |
| ENDPROC(__ashlti3) |
| |
| ENTRY(__ashrti3) |
| cbz x2, 3f |
| mov x3, #64 |
| sub x3, x3, x2 |
| cmp x3, #0 |
| b.le 4f |
| lsr x0, x0, x2 |
| lsl x3, x1, x3 |
| asr x2, x1, x2 |
| orr x0, x0, x3 |
| mov x1, x2 |
| 3: |
| ret |
| 4: |
| neg w0, w3 |
| asr x2, x1, #63 |
| asr x0, x1, x0 |
| mov x1, x2 |
| ret |
| ENDPROC(__ashrti3) |
| |
| ENTRY(__lshrti3) |
| cbz x2, 1f |
| mov x3, #64 |
| sub x3, x3, x2 |
| cmp x3, #0 |
| b.le 2f |
| lsr x0, x0, x2 |
| lsl x3, x1, x3 |
| lsr x2, x1, x2 |
| orr x0, x0, x3 |
| mov x1, x2 |
| 1: |
| ret |
| 2: |
| neg w0, w3 |
| mov x2, #0 |
| lsr x0, x1, x0 |
| mov x1, x2 |
| ret |
| ENDPROC(__lshrti3) |
