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/* This is a simple version of setjmp and longjmp for the PowerPC.
   Ian Lance Taylor, Cygnus Support, 9 Feb 1994.  */
 
#include "ppc-asm.h"
 
FUNC_START(setjmp)
        addi    3,3,7           # align to 8 byte boundary
        rlwinm  3,3,0,0,28
        stw     1,0(3)          # offset 0
        stwu    2,4(3)          # offset 4
        stwu    13,4(3)         # offset 8
        stwu    14,4(3)         # offset 12
        stwu    15,4(3)         # offset 16
        stwu    16,4(3)         # offset 20
        stwu    17,4(3)         # offset 24
        stwu    18,4(3)         # offset 28
        stwu    19,4(3)         # offset 32
        stwu    20,4(3)         # offset 36
        stwu    21,4(3)         # offset 40
        stwu    22,4(3)         # offset 44
        stwu    23,4(3)         # offset 48
        stwu    24,4(3)         # offset 52
        stwu    25,4(3)         # offset 56
        stwu    26,4(3)         # offset 60
        stwu    27,4(3)         # offset 64
        stwu    28,4(3)         # offset 68
        stwu    29,4(3)         # offset 72
        stwu    30,4(3)         # offset 76
        stwu    31,4(3)         # offset 80
        mflr    4
        stwu    4,4(3)          # offset 84
        mfcr    4
        stwu    4,4(3)          # offset 88
                                # one word pad to get floating point aligned on 8 byte boundary
#ifndef _SOFT_FLOAT
        stfdu   14,8(3)         # offset 96
        stfdu   15,8(3)         # offset 104
        stfdu   16,8(3)         # offset 112
        stfdu   17,8(3)         # offset 120
        stfdu   18,8(3)         # offset 128
        stfdu   19,8(3)         # offset 136
        stfdu   20,8(3)         # offset 144
        stfdu   21,8(3)         # offset 152
        stfdu   22,8(3)         # offset 160
        stfdu   23,8(3)         # offset 168
        stfdu   24,8(3)         # offset 176
        stfdu   25,8(3)         # offset 184
        stfdu   26,8(3)         # offset 192
        stfdu   27,8(3)         # offset 200
        stfdu   28,8(3)         # offset 208
        stfdu   29,8(3)         # offset 216
        stfdu   30,8(3)         # offset 224
        stfdu   31,8(3)         # offset 232
#endif
 
        /* This requires a total of 21 * 4 + 18 * 8 + 4 + 4 + 4
           bytes == 60 * 4 bytes == 240 bytes.  */
 
        li      3,0
        blr
FUNC_END(setjmp)
 
 
FUNC_START(longjmp)
        addi    3,3,7           # align to 8 byte boundary
        rlwinm  3,3,0,0,28
        lwz     1,0(3)          # offset 0
        lwzu    2,4(3)          # offset 4
        lwzu    13,4(3)         # offset 8
        lwzu    14,4(3)         # offset 12
        lwzu    15,4(3)         # offset 16
        lwzu    16,4(3)         # offset 20
        lwzu    17,4(3)         # offset 24
        lwzu    18,4(3)         # offset 28
        lwzu    19,4(3)         # offset 32
        lwzu    20,4(3)         # offset 36
        lwzu    21,4(3)         # offset 40
        lwzu    22,4(3)         # offset 44
        lwzu    23,4(3)         # offset 48
        lwzu    24,4(3)         # offset 52
        lwzu    25,4(3)         # offset 56
        lwzu    26,4(3)         # offset 60
        lwzu    27,4(3)         # offset 64
        lwzu    28,4(3)         # offset 68
        lwzu    29,4(3)         # offset 72
        lwzu    30,4(3)         # offset 76
        lwzu    31,4(3)         # offset 80
        lwzu    5,4(3)          # offset 84
        mtlr    5
        lwzu    5,4(3)          # offset 88
        mtcrf   255,5
                                # one word pad to get floating point aligned on 8 byte boundary
#ifndef _SOFT_FLOAT
        lfdu    14,8(3)         # offset 96
        lfdu    15,8(3)         # offset 104
        lfdu    16,8(3)         # offset 112
        lfdu    17,8(3)         # offset 120
        lfdu    18,8(3)         # offset 128
        lfdu    19,8(3)         # offset 136
        lfdu    20,8(3)         # offset 144
        lfdu    21,8(3)         # offset 152
        lfdu    22,8(3)         # offset 160
        lfdu    23,8(3)         # offset 168
        lfdu    24,8(3)         # offset 176
        lfdu    25,8(3)         # offset 184
        lfdu    26,8(3)         # offset 192
        lfdu    27,8(3)         # offset 200
        lfdu    28,8(3)         # offset 208
        lfdu    29,8(3)         # offset 216
        lfdu    30,8(3)         # offset 224
        lfdu    31,8(3)         # offset 232
#endif
 
        mr.     3,4
        bclr+   4,2
        li      3,1
        blr
FUNC_END(longjmp)

Line No.	Rev	Author	Line
1	1009	ivang	`/* This is a simple version of setjmp and longjmp for the PowerPC.`
2			`Ian Lance Taylor, Cygnus Support, 9 Feb 1994. */`
3
4			`#include "ppc-asm.h"`
5
6			`FUNC_START(setjmp)`
7			`addi 3,3,7 # align to 8 byte boundary`
8			`rlwinm 3,3,0,0,28`
9			`stw 1,0(3) # offset 0`
10			`stwu 2,4(3) # offset 4`
11			`stwu 13,4(3) # offset 8`
12			`stwu 14,4(3) # offset 12`
13			`stwu 15,4(3) # offset 16`
14			`stwu 16,4(3) # offset 20`
15			`stwu 17,4(3) # offset 24`
16			`stwu 18,4(3) # offset 28`
17			`stwu 19,4(3) # offset 32`
18			`stwu 20,4(3) # offset 36`
19			`stwu 21,4(3) # offset 40`
20			`stwu 22,4(3) # offset 44`
21			`stwu 23,4(3) # offset 48`
22			`stwu 24,4(3) # offset 52`
23			`stwu 25,4(3) # offset 56`
24			`stwu 26,4(3) # offset 60`
25			`stwu 27,4(3) # offset 64`
26			`stwu 28,4(3) # offset 68`
27			`stwu 29,4(3) # offset 72`
28			`stwu 30,4(3) # offset 76`
29			`stwu 31,4(3) # offset 80`
30			`mflr 4`
31			`stwu 4,4(3) # offset 84`
32			`mfcr 4`
33			`stwu 4,4(3) # offset 88`
34			`# one word pad to get floating point aligned on 8 byte boundary`
35			`#ifndef _SOFT_FLOAT`
36			`stfdu 14,8(3) # offset 96`
37			`stfdu 15,8(3) # offset 104`
38			`stfdu 16,8(3) # offset 112`
39			`stfdu 17,8(3) # offset 120`
40			`stfdu 18,8(3) # offset 128`
41			`stfdu 19,8(3) # offset 136`
42			`stfdu 20,8(3) # offset 144`
43			`stfdu 21,8(3) # offset 152`
44			`stfdu 22,8(3) # offset 160`
45			`stfdu 23,8(3) # offset 168`
46			`stfdu 24,8(3) # offset 176`
47			`stfdu 25,8(3) # offset 184`
48			`stfdu 26,8(3) # offset 192`
49			`stfdu 27,8(3) # offset 200`
50			`stfdu 28,8(3) # offset 208`
51			`stfdu 29,8(3) # offset 216`
52			`stfdu 30,8(3) # offset 224`
53			`stfdu 31,8(3) # offset 232`
54			`#endif`
55
56			`/* This requires a total of 21 * 4 + 18 * 8 + 4 + 4 + 4`
57			`bytes == 60 * 4 bytes == 240 bytes. */`
58
59			`li 3,0`
60			`blr`
61			`FUNC_END(setjmp)`
62
63
64			`FUNC_START(longjmp)`
65			`addi 3,3,7 # align to 8 byte boundary`
66			`rlwinm 3,3,0,0,28`
67			`lwz 1,0(3) # offset 0`
68			`lwzu 2,4(3) # offset 4`
69			`lwzu 13,4(3) # offset 8`
70			`lwzu 14,4(3) # offset 12`
71			`lwzu 15,4(3) # offset 16`
72			`lwzu 16,4(3) # offset 20`
73			`lwzu 17,4(3) # offset 24`
74			`lwzu 18,4(3) # offset 28`
75			`lwzu 19,4(3) # offset 32`
76			`lwzu 20,4(3) # offset 36`
77			`lwzu 21,4(3) # offset 40`
78			`lwzu 22,4(3) # offset 44`
79			`lwzu 23,4(3) # offset 48`
80			`lwzu 24,4(3) # offset 52`
81			`lwzu 25,4(3) # offset 56`
82			`lwzu 26,4(3) # offset 60`
83			`lwzu 27,4(3) # offset 64`
84			`lwzu 28,4(3) # offset 68`
85			`lwzu 29,4(3) # offset 72`
86			`lwzu 30,4(3) # offset 76`
87			`lwzu 31,4(3) # offset 80`
88			`lwzu 5,4(3) # offset 84`
89			`mtlr 5`
90			`lwzu 5,4(3) # offset 88`
91			`mtcrf 255,5`
92			`# one word pad to get floating point aligned on 8 byte boundary`
93			`#ifndef _SOFT_FLOAT`
94			`lfdu 14,8(3) # offset 96`
95			`lfdu 15,8(3) # offset 104`
96			`lfdu 16,8(3) # offset 112`
97			`lfdu 17,8(3) # offset 120`
98			`lfdu 18,8(3) # offset 128`
99			`lfdu 19,8(3) # offset 136`
100			`lfdu 20,8(3) # offset 144`
101			`lfdu 21,8(3) # offset 152`
102			`lfdu 22,8(3) # offset 160`
103			`lfdu 23,8(3) # offset 168`
104			`lfdu 24,8(3) # offset 176`
105			`lfdu 25,8(3) # offset 184`
106			`lfdu 26,8(3) # offset 192`
107			`lfdu 27,8(3) # offset 200`
108			`lfdu 28,8(3) # offset 208`
109			`lfdu 29,8(3) # offset 216`
110			`lfdu 30,8(3) # offset 224`
111			`lfdu 31,8(3) # offset 232`
112			`#endif`
113
114			`mr. 3,4`
115			`bclr+ 4,2`
116			`li 3,1`
117			`blr`
118			`FUNC_END(longjmp)`

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[/] [or1k/] [trunk/] [newlib-1.10.0/] [newlib/] [libc/] [machine/] [powerpc/] [setjmp.S] - Blame information for rev 1765