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99dee823 | 1 | ; Copyright (C) 2017-2021 Free Software Foundation, Inc. |
6e9007a0 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 ___smindi3 | |
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 | bc $.L1 | |
46 | bnz $.L2 | |
47 | ||
48 | movw ax, [sp+16] | |
49 | cmpw ax, r12 | |
50 | bc $.L1 | |
51 | bnz $.L2 | |
52 | ||
53 | movw ax, [sp+14] | |
54 | cmpw ax, r10 | |
55 | bc $.L1 | |
56 | bnz $.L2 | |
57 | ||
58 | movw ax, [sp+12] | |
59 | cmpw ax, r8 | |
60 | bc $.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 ___smindi3 |