URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [fr30/] [lib1funcs.asm] - Blame information for rev 292

Go to most recent revision | Details | Compare with Previous | View Log


/* libgcc routines for the FR30.
   Copyright (C) 1998, 1999, 2009 Free Software Foundation, Inc.
 
This file is part of GCC.
 
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3, or (at your option) any
later version.
 
This file 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.
 
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
 
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
.  */
 
        .macro FUNC_START name
        .text
        .globl __\name
        .type  __\name, @function
__\name:
        .endm
 
        .macro FUNC_END name
        .size  __\name, . - __\name
        .endm
 
        .macro DIV_BODY reg number
        .if \number
        DIV_BODY  \reg, "\number - 1"
        div1    \reg
        .endif
        .endm
 
#ifdef L_udivsi3
FUNC_START udivsi3
        ;; Perform an unsiged division of r4 / r5 and place the result in r4.
        ;; Does not handle overflow yet...
        mov     r4, mdl
        div0u   r5
        DIV_BODY r5 32
        mov     mdl, r4
        ret
FUNC_END udivsi3
#endif /* L_udivsi3 */
 
#ifdef L_divsi3
FUNC_START divsi3
        ;; Perform a siged division of r4 / r5 and place the result in r4.
        ;; Does not handle overflow yet...
        mov     r4, mdl
        div0s   r5
        DIV_BODY r5 32
        div2    r5
        div3
        div4s
        mov     mdl, r4
        ret
FUNC_END divsi3
#endif /* L_divsi3 */
 
#ifdef L_umodsi3
FUNC_START umodsi3
        ;; Perform an unsiged division of r4 / r5 and places the remainder in r4.
        ;; Does not handle overflow yet...
        mov     r4, mdl
        div0u   r5
        DIV_BODY r5 32
        mov     mdh, r4
        ret
FUNC_END umodsi3
#endif /* L_umodsi3 */
 
#ifdef L_modsi3
FUNC_START modsi3
        ;; Perform a siged division of r4 / r5 and place the remainder in r4.
        ;; Does not handle overflow yet...
        mov     r4, mdl
        div0s   r5
        DIV_BODY r5 32
        div2    r5
        div3
        div4s
        mov     mdh, r4
        ret
FUNC_END modsi3
#endif /* L_modsi3 */
 
#ifdef L_negsi2
FUNC_START negsi2
        ldi:8   #0, r0
        sub     r4, r0
        mov     r0, r4
        ret
FUNC_END negsi2
#endif /* L_negsi2 */
 
#ifdef L_one_cmplsi2
FUNC_START one_cmplsi2
        ldi:8   #0xff, r0
        extsb   r0
        eor     r0, r4
        ret
FUNC_END one_cmplsi2
#endif /* L_one_cmplsi2 */
 
 

Line No.	Rev	Author	Line
1	282	jeremybenn	`/* libgcc routines for the FR30.`
2			`Copyright (C) 1998, 1999, 2009 Free Software Foundation, Inc.`
3
4			`This file is part of GCC.`
5
6			`GCC is free software; you can redistribute it and/or modify it`
7			`under the terms of the GNU General Public License as published by the`
8			`Free Software Foundation; either version 3, or (at your option) any`
9			`later version.`
10
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
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			`. */`
24
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

Browse

Tools

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [fr30/] [lib1funcs.asm] - Blame information for rev 292