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/* Miscellaneous BPABI functions.
 
   Copyright (C) 2003, 2004, 2007, 2008, 2009  Free Software Foundation, Inc.
   Contributed by CodeSourcery, LLC.
 
   This file 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
   .  */
 
#ifdef L_aeabi_lcmp
 
ARM_FUNC_START aeabi_lcmp
        cmp     xxh, yyh
        do_it   lt
        movlt   r0, #-1
        do_it   gt
        movgt   r0, #1
        do_it   ne
        RETc(ne)
        subs    r0, xxl, yyl
        do_it   lo
        movlo   r0, #-1
        do_it   hi
        movhi   r0, #1
        RET
        FUNC_END aeabi_lcmp
 
#endif /* L_aeabi_lcmp */
 
#ifdef L_aeabi_ulcmp
 
ARM_FUNC_START aeabi_ulcmp
        cmp     xxh, yyh
        do_it   lo
        movlo   r0, #-1
        do_it   hi
        movhi   r0, #1
        do_it   ne
        RETc(ne)
        cmp     xxl, yyl
        do_it   lo
        movlo   r0, #-1
        do_it   hi
        movhi   r0, #1
        do_it   eq
        moveq   r0, #0
        RET
        FUNC_END aeabi_ulcmp
 
#endif /* L_aeabi_ulcmp */
 
.macro test_div_by_zero signed
/* Tail-call to divide-by-zero handlers which may be overridden by the user,
   so unwinding works properly.  */
#if defined(__thumb2__)
        cbnz    yyh, 1f
        cbnz    yyl, 1f
        cmp     xxh, #0
        do_it   eq
        cmpeq   xxl, #0
        .ifc \signed, unsigned
        beq     2f
        mov     xxh, #0xffffffff
        mov     xxl, xxh
2:
        .else
        do_it   lt, t
        movlt   xxl, #0
        movlt   xxh, #0x80000000
        do_it   gt, t
        movgt   xxh, #0x7fffffff
        movgt   xxl, #0xffffffff
        .endif
        b       SYM (__aeabi_ldiv0) __PLT__
1:
#else
        /* Note: Thumb-1 code calls via an ARM shim on processors which
           support ARM mode.  */
        cmp     yyh, #0
        cmpeq   yyl, #0
        bne     2f
        cmp     xxh, #0
        cmpeq   xxl, #0
        .ifc \signed, unsigned
        movne   xxh, #0xffffffff
        movne   xxl, #0xffffffff
        .else
        movlt   xxh, #0x80000000
        movlt   xxl, #0
        movgt   xxh, #0x7fffffff
        movgt   xxl, #0xffffffff
        .endif
        b       SYM (__aeabi_ldiv0) __PLT__
2:
#endif
.endm
 
#ifdef L_aeabi_ldivmod
 
ARM_FUNC_START aeabi_ldivmod
        test_div_by_zero signed
 
        sub sp, sp, #8
#if defined(__thumb2__)
        mov ip, sp
        push {ip, lr}
#else
        do_push {sp, lr}
#endif
        bl SYM(__gnu_ldivmod_helper) __PLT__
        ldr lr, [sp, #4]
        add sp, sp, #8
        do_pop {r2, r3}
        RET
 
#endif /* L_aeabi_ldivmod */
 
#ifdef L_aeabi_uldivmod
 
ARM_FUNC_START aeabi_uldivmod
        test_div_by_zero unsigned
 
        sub sp, sp, #8
#if defined(__thumb2__)
        mov ip, sp
        push {ip, lr}
#else
        do_push {sp, lr}
#endif
        bl SYM(__gnu_uldivmod_helper) __PLT__
        ldr lr, [sp, #4]
        add sp, sp, #8
        do_pop {r2, r3}
        RET
 
#endif /* L_aeabi_divmod */
 

Line No.	Rev	Author	Line
1	282	jeremybenn	`/* Miscellaneous BPABI functions.`
2
3			`Copyright (C) 2003, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.`
4			`Contributed by CodeSourcery, LLC.`
5
6			`This file 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			`#ifdef L_aeabi_lcmp`
26
27			`ARM_FUNC_START aeabi_lcmp`
28			`cmp xxh, yyh`
29			`do_it lt`
30			`movlt r0, #-1`
31			`do_it gt`
32			`movgt r0, #1`
33			`do_it ne`
34			`RETc(ne)`
35			`subs r0, xxl, yyl`
36			`do_it lo`
37			`movlo r0, #-1`
38			`do_it hi`
39			`movhi r0, #1`
40			`RET`
41			`FUNC_END aeabi_lcmp`
42
43			`#endif /* L_aeabi_lcmp */`
44
45			`#ifdef L_aeabi_ulcmp`
46
47			`ARM_FUNC_START aeabi_ulcmp`
48			`cmp xxh, yyh`
49			`do_it lo`
50			`movlo r0, #-1`
51			`do_it hi`
52			`movhi r0, #1`
53			`do_it ne`
54			`RETc(ne)`
55			`cmp xxl, yyl`
56			`do_it lo`
57			`movlo r0, #-1`
58			`do_it hi`
59			`movhi r0, #1`
60			`do_it eq`
61			`moveq r0, #0`
62			`RET`
63			`FUNC_END aeabi_ulcmp`
64
65			`#endif /* L_aeabi_ulcmp */`
66
67			`.macro test_div_by_zero signed`
68			`/* Tail-call to divide-by-zero handlers which may be overridden by the user,`
69			`so unwinding works properly. */`
70			`#if defined(__thumb2__)`
71			`cbnz yyh, 1f`
72			`cbnz yyl, 1f`
73			`cmp xxh, #0`
74			`do_it eq`
75			`cmpeq xxl, #0`
76			`.ifc \signed, unsigned`
77			`beq 2f`
78			`mov xxh, #0xffffffff`
79			`mov xxl, xxh`
80			`2:`
81			`.else`
82			`do_it lt, t`
83			`movlt xxl, #0`
84			`movlt xxh, #0x80000000`
85			`do_it gt, t`
86			`movgt xxh, #0x7fffffff`
87			`movgt xxl, #0xffffffff`
88			`.endif`
89			`b SYM (__aeabi_ldiv0) __PLT__`
90			`1:`
91			`#else`
92			`/* Note: Thumb-1 code calls via an ARM shim on processors which`
93			`support ARM mode. */`
94			`cmp yyh, #0`
95			`cmpeq yyl, #0`
96			`bne 2f`
97			`cmp xxh, #0`
98			`cmpeq xxl, #0`
99			`.ifc \signed, unsigned`
100			`movne xxh, #0xffffffff`
101			`movne xxl, #0xffffffff`
102			`.else`
103			`movlt xxh, #0x80000000`
104			`movlt xxl, #0`
105			`movgt xxh, #0x7fffffff`
106			`movgt xxl, #0xffffffff`
107			`.endif`
108			`b SYM (__aeabi_ldiv0) __PLT__`
109			`2:`
110			`#endif`
111			`.endm`
112
113			`#ifdef L_aeabi_ldivmod`
114
115			`ARM_FUNC_START aeabi_ldivmod`
116			`test_div_by_zero signed`
117
118			`sub sp, sp, #8`
119			`#if defined(__thumb2__)`
120			`mov ip, sp`
121			`push {ip, lr}`
122			`#else`
123			`do_push {sp, lr}`
124			`#endif`
125			`bl SYM(__gnu_ldivmod_helper) __PLT__`
126			`ldr lr, [sp, #4]`
127			`add sp, sp, #8`
128			`do_pop {r2, r3}`
129			`RET`
130
131			`#endif /* L_aeabi_ldivmod */`
132
133			`#ifdef L_aeabi_uldivmod`
134
135			`ARM_FUNC_START aeabi_uldivmod`
136			`test_div_by_zero unsigned`
137
138			`sub sp, sp, #8`
139			`#if defined(__thumb2__)`
140			`mov ip, sp`
141			`push {ip, lr}`
142			`#else`
143			`do_push {sp, lr}`
144			`#endif`
145			`bl SYM(__gnu_uldivmod_helper) __PLT__`
146			`ldr lr, [sp, #4]`
147			`add sp, sp, #8`
148			`do_pop {r2, r3}`
149			`RET`
150
151			`#endif /* L_aeabi_divmod */`
152

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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [arm/] [bpabi.S] - Blame information for rev 473