projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 7adcbafe | 1 | ; Copyright (C) 2017-2022 Free Software Foundation, Inc. |
| d975e494 SP |
2 | ; Contributed by Sebastian Perta. |
| 3 | ; | |
| 4 | ; This file is free software; you can redistribute it and/or modify it | |
| 5 | ; under the terms of the GNU General Public License as published by the | |
| 6 | ; Free Software Foundation; either version 3, or (at your option) any | |
| 7 | ; later version. | |
| 8 | ; | |
| 9 | ; This file is distributed in the hope that it will be useful, but | |
| 10 | ; WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | ; General Public License for more details. | |
| 13 | ; | |
| 14 | ; Under Section 7 of GPL version 3, you are granted additional | |
| 15 | ; permissions described in the GCC Runtime Library Exception, version | |
| 16 | ; 3.1, as published by the Free Software Foundation. | |
| 17 | ; | |
| 18 | ; You should have received a copy of the GNU General Public License and | |
| 19 | ; a copy of the GCC Runtime Library Exception along with this program; | |
| 20 | ; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 21 | ; <http://www.gnu.org/licenses/>. | |
| 22 | ||
| 23 | ||
| 24 | #include "vregs.h" | |
| 25 | ||
| 26 | .text | |
| 27 | ||
| 28 | START_FUNC ___smaxdi3 | |
| 29 | ||
| 30 | ; copy first argument/operand to the output registers | |
| 31 | movw ax, [sp+4] | |
| 32 | movw r8, ax | |
| 33 | movw ax, [sp+6] | |
| 34 | movw r10, ax | |
| 35 | movw ax, [sp+8] | |
| 36 | movw r12, ax | |
| 37 | movw ax, [sp+10] | |
| 38 | movw r14, ax | |
| 39 | ||
| 40 | ; use 16-bit compares from the most significant words downto the least significant ones | |
| 41 | movw ax, [sp+18] | |
| 42 | cmpw ax, r14 | |
| 43 | xor1 CY, a.7 ; first compare accounts for the | |
| 44 | xor1 CY, r15.7 ; sign bits of the two operands | |
| 45 | bh $.L1 | |
| 46 | bnz $.L2 | |
| 47 | ||
| 48 | movw ax, [sp+16] | |
| 49 | cmpw ax, r12 | |
| 50 | bh $.L1 | |
| 51 | bnz $.L2 | |
| 52 | ||
| 53 | movw ax, [sp+14] | |
| 54 | cmpw ax, r10 | |
| 55 | bh $.L1 | |
| 56 | bnz $.L2 | |
| 57 | ||
| 58 | movw ax, [sp+12] | |
| 59 | cmpw ax, r8 | |
| 60 | bh $.L1 | |
| 61 | ret | |
| 62 | ||
| 63 | .L1: | |
| 64 | ; copy second argument/operand to the output registers | |
| 65 | movw ax, [sp+12] | |
| 66 | movw r8, ax | |
| 67 | movw ax, [sp+14] | |
| 68 | movw r10, ax | |
| 69 | movw ax, [sp+16] | |
| 70 | movw r12, ax | |
| 71 | movw ax, [sp+18] | |
| 72 | movw r14, ax | |
| 73 | .L2: | |
| 74 | ret | |
| 75 | ||
| 76 | END_FUNC ___smaxdi3 |