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[/] [or1k/] [trunk/] [newlib-1.10.0/] [newlib/] [libc/] [machine/] [mips/] [setjmp.S] - Blame information for rev 1773

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Line No.	Rev	Author	Line
1	1008	ivang	`/* This is a simple version of setjmp and longjmp for MIPS 32 and 64.`
2
3			`The MIPS 32 version does NOT save the floating point register, which is`
4			`wrong, but I don't know how to cleanly handle machines without a`
5			`floating point coprocessor.`
6
7			`Ian Lance Taylor, Cygnus Support, 13 May 1993.`
8
9			`The MIPS 64 version saves registers fp20 to fp31. 23 registers`
10			`are saved in all. */`
11
12			`#ifdef __mips16`
13			`/* This file contains 32 bit assembly code. */`
14			`.set nomips16`
15			`#endif`
16
17			`/* int setjmp (jmp_buf); */`
18			`.globl setjmp`
19			`.ent setjmp`
20			`setjmp:`
21			`.frame $sp,0,$31`
22
23			`#ifdef __mips64`
24
25			`sd $16, 000($4) /* s0 */`
26			`sd $17, 010($4) /* s1 */`
27			`sd $18, 020($4) /* s2 */`
28			`sd $19, 030($4) /* s3 */`
29			`sd $20, 040($4) /* s4 */`
30			`sd $21, 050($4) /* s5 */`
31			`sd $22, 060($4) /* s6 */`
32			`sd $23, 070($4) /* s7 */`
33
34			`sdc1 $f20, 0100($4)`
35			`sdc1 $f21, 0110($4)`
36			`sdc1 $f22, 0120($4)`
37			`sdc1 $f23, 0130($4)`
38			`sdc1 $f24, 0140($4)`
39			`sdc1 $f25, 0150($4)`
40			`sdc1 $f26, 0160($4)`
41			`sdc1 $f27, 0170($4)`
42			`sdc1 $f28, 0200($4)`
43			`sdc1 $f29, 0210($4)`
44			`sdc1 $f30, 0220($4)`
45			`sdc1 $f31, 0230($4)`
46
47			`sd $29, 0240($4) /* sp */`
48			`sd $30, 0250($4) /* fp */`
49			`sd $31, 0260($4) /* ra */`
50
51			`#else /* not __mips64 */`
52
53			`sw $16,0($4) /* $s0 */`
54			`sw $17,4($4) /* $s1 */`
55			`sw $18,8($4) /* $s2 */`
56			`sw $19,12($4) /* $s3 */`
57			`sw $20,16($4) /* $s4 */`
58			`sw $21,20($4) /* $s5 */`
59			`sw $22,24($4) /* $s6 */`
60			`sw $23,28($4) /* $s7 */`
61			`sw $30,32($4) /* $s8 */`
62
63			`sw $sp,36($4)`
64			`sw $31,40($4)`
65
66			`#endif /* not __mips64 */`
67
68			`move $2,$0`
69
70			`j $31`
71
72			`.end setjmp`
73
74			`/* volatile void longjmp (jmp_buf, int); */`
75			`.globl longjmp`
76			`.ent longjmp`
77			`longjmp:`
78			`.frame $sp,0,$31`
79
80			`#ifdef __mips64`
81
82			`ld $16, 000($4) /* s0 */`
83			`ld $17, 010($4) /* s1 */`
84			`ld $18, 020($4) /* s2 */`
85			`ld $19, 030($4) /* s3 */`
86			`ld $20, 040($4) /* s4 */`
87			`ld $21, 050($4) /* s5 */`
88			`ld $22, 060($4) /* s6 */`
89			`ld $23, 070($4) /* s7 */`
90
91			`ldc1 $f20, 0100($4)`
92			`ldc1 $f21, 0110($4)`
93			`ldc1 $f22, 0120($4)`
94			`ldc1 $f23, 0130($4)`
95			`ldc1 $f24, 0140($4)`
96			`ldc1 $f25, 0150($4)`
97			`ldc1 $f26, 0160($4)`
98			`ldc1 $f27, 0170($4)`
99			`ldc1 $f28, 0200($4)`
100			`ldc1 $f29, 0210($4)`
101			`ldc1 $f30, 0220($4)`
102			`ldc1 $f31, 0230($4)`
103
104			`ld $29, 0240($4) /* sp */`
105			`ld $30, 0250($4) /* fp */`
106			`ld $31, 0260($4) /* ra */`
107
108			`#else /* not __mips64 */`
109
110			`lw $16,0($4) /* $s0 */`
111			`lw $17,4($4) /* $s1 */`
112			`lw $18,8($4) /* $s2 */`
113			`lw $19,12($4) /* $s3 */`
114			`lw $20,16($4) /* $s4 */`
115			`lw $21,20($4) /* $s5 */`
116			`lw $22,24($4) /* $s6 */`
117			`lw $23,28($4) /* $s7 */`
118			`lw $30,32($4) /* $s8 */`
119
120			`lw $sp,36($4)`
121			`lw $31,40($4)`
122
123			`#endif /* not __mips64 */`
124
125			`bne $5,$0,1f`
126			`li $5,1`
127			`1:`
128			`move $2,$5`
129
130			`j $31`
131
132			`.end longjmp`

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[/] [or1k/] [trunk/] [newlib-1.10.0/] [newlib/] [libc/] [machine/] [mips/] [setjmp.S] - Blame information for rev 1773