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7857f134 | 1 | /* libgcc routines for the FR30. |
7adcbafe | 2 | Copyright (C) 1998-2022 Free Software Foundation, Inc. |
309dd885 | 3 | |
7ec022b2 | 4 | This file is part of GCC. |
309dd885 | 5 | |
7ec022b2 | 6 | GCC is free software; you can redistribute it and/or modify it |
309dd885 | 7 | under the terms of the GNU General Public License as published by the |
748086b7 | 8 | Free Software Foundation; either version 3, or (at your option) any |
309dd885 NC |
9 | later version. |
10 | ||
309dd885 NC |
11 | This file is distributed in the hope that it will be useful, but |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | General Public License for more details. | |
15 | ||
748086b7 JJ |
16 | Under Section 7 of GPL version 3, you are granted additional |
17 | permissions described in the GCC Runtime Library Exception, version | |
18 | 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | You should have received a copy of the GNU General Public License and | |
21 | a copy of the GCC Runtime Library Exception along with this program; | |
22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | <http://www.gnu.org/licenses/>. */ | |
309dd885 | 24 | |
309dd885 NC |
25 | .macro FUNC_START name |
26 | .text | |
27 | .globl __\name | |
28 | .type __\name, @function | |
29 | __\name: | |
30 | .endm | |
31 | ||
32 | .macro FUNC_END name | |
33 | .size __\name, . - __\name | |
34 | .endm | |
35 | ||
36 | .macro DIV_BODY reg number | |
37 | .if \number | |
38 | DIV_BODY \reg, "\number - 1" | |
39 | div1 \reg | |
40 | .endif | |
41 | .endm | |
42 | ||
43 | #ifdef L_udivsi3 | |
44 | FUNC_START udivsi3 | |
45 | ;; Perform an unsiged division of r4 / r5 and place the result in r4. | |
46 | ;; Does not handle overflow yet... | |
47 | mov r4, mdl | |
48 | div0u r5 | |
49 | DIV_BODY r5 32 | |
50 | mov mdl, r4 | |
51 | ret | |
52 | FUNC_END udivsi3 | |
53 | #endif /* L_udivsi3 */ | |
54 | ||
55 | #ifdef L_divsi3 | |
56 | FUNC_START divsi3 | |
57 | ;; Perform a siged division of r4 / r5 and place the result in r4. | |
58 | ;; Does not handle overflow yet... | |
59 | mov r4, mdl | |
60 | div0s r5 | |
61 | DIV_BODY r5 32 | |
62 | div2 r5 | |
63 | div3 | |
64 | div4s | |
65 | mov mdl, r4 | |
66 | ret | |
67 | FUNC_END divsi3 | |
68 | #endif /* L_divsi3 */ | |
69 | ||
70 | #ifdef L_umodsi3 | |
71 | FUNC_START umodsi3 | |
72 | ;; Perform an unsiged division of r4 / r5 and places the remainder in r4. | |
73 | ;; Does not handle overflow yet... | |
74 | mov r4, mdl | |
75 | div0u r5 | |
76 | DIV_BODY r5 32 | |
77 | mov mdh, r4 | |
78 | ret | |
79 | FUNC_END umodsi3 | |
80 | #endif /* L_umodsi3 */ | |
81 | ||
82 | #ifdef L_modsi3 | |
83 | FUNC_START modsi3 | |
84 | ;; Perform a siged division of r4 / r5 and place the remainder in r4. | |
85 | ;; Does not handle overflow yet... | |
86 | mov r4, mdl | |
87 | div0s r5 | |
88 | DIV_BODY r5 32 | |
89 | div2 r5 | |
90 | div3 | |
91 | div4s | |
92 | mov mdh, r4 | |
93 | ret | |
94 | FUNC_END modsi3 | |
95 | #endif /* L_modsi3 */ | |
96 | ||
97 | #ifdef L_negsi2 | |
98 | FUNC_START negsi2 | |
99 | ldi:8 #0, r0 | |
100 | sub r4, r0 | |
101 | mov r0, r4 | |
102 | ret | |
103 | FUNC_END negsi2 | |
104 | #endif /* L_negsi2 */ | |
105 | ||
106 | #ifdef L_one_cmplsi2 | |
107 | FUNC_START one_cmplsi2 | |
108 | ldi:8 #0xff, r0 | |
109 | extsb r0 | |
110 | eor r0, r4 | |
111 | ret | |
112 | FUNC_END one_cmplsi2 | |
113 | #endif /* L_one_cmplsi2 */ | |
114 | ||
115 |