projects / mirror_qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| d3e35a1f AG |
1 | /* |
| 2 | * AArch64 specific helpers | |
| 3 | * | |
| 4 | * Copyright (c) 2013 Alexander Graf <agraf@suse.de> | |
| 5 | * | |
| 6 | * This library is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU Lesser General Public | |
| 8 | * License as published by the Free Software Foundation; either | |
| 9 | * version 2 of the License, or (at your option) any later version. | |
| 10 | * | |
| 11 | * This library is distributed in the hope that it will be useful, | |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 14 | * Lesser General Public License for more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU Lesser General Public | |
| 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
| 18 | */ | |
| 19 | ||
| 20 | #include "cpu.h" | |
| 21 | #include "exec/gdbstub.h" | |
| 22 | #include "helper.h" | |
| 23 | #include "qemu/host-utils.h" | |
| 24 | #include "sysemu/sysemu.h" | |
| 25 | #include "qemu/bitops.h" | |
| 8220e911 AG |
26 | |
| 27 | /* C2.4.7 Multiply and divide */ | |
| 28 | /* special cases for 0 and LLONG_MIN are mandated by the standard */ | |
| 29 | uint64_t HELPER(udiv64)(uint64_t num, uint64_t den) | |
| 30 | { | |
| 31 | if (den == 0) { | |
| 32 | return 0; | |
| 33 | } | |
| 34 | return num / den; | |
| 35 | } | |
| 36 | ||
| 37 | int64_t HELPER(sdiv64)(int64_t num, int64_t den) | |
| 38 | { | |
| 39 | if (den == 0) { | |
| 40 | return 0; | |
| 41 | } | |
| 42 | if (num == LLONG_MIN && den == -1) { | |
| 43 | return LLONG_MIN; | |
| 44 | } | |
| 45 | return num / den; | |
| 46 | } |