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/* setjmp/longjmp routines for M68HC11 & M68HC12.
 * Copyright (C) 1999, 2000, 2001, 2002 Stephane Carrez (stcarrez@nerim.fr)
 *
 * The authors hereby grant permission to use, copy, modify, distribute,
 * and license this software and its documentation for any purpose, provided
 * that existing copyright notices are retained in all copies and that this
 * notice is included verbatim in any distributions. No written agreement,
 * license, or royalty fee is required for any of the authorized uses.
 * Modifications to this software may be copyrighted by their authors
 * and need not follow the licensing terms described here, provided that
 * the new terms are clearly indicated on the first page of each file where
 * they apply.
 */
 
#if __INT__ == 32
# define val 4
# define INT32(X) X
#else
# define val 2
# define INT32(X)
#endif
 
#ifdef mc6811
# define REG(X) *X
#else
# define REG(X) X
#endif
 
        .sect .text
        .global setjmp
        .global longjmp
 
#ifdef mc6811
setjmp:
        xgdx
        tsy
        ldd     0,y
        std     0,x
        sty     2,x
        ldd     REG(_.frame)
        std     4,x
        ldd     REG(_.d1)
        std     6,x
        ldd     REG(_.d2)
        std     8,x
        ldd     REG(_.d3)
        std     10,x
        ldd     REG(_.d4)
        std     12,x
        ldd     REG(_.d5)
        std     14,x
        ldd     REG(_.d6)
        std     16,x
        ldd     REG(_.d7)
        std     18,x
        ldd     REG(_.d8)
        std     20,x
INT32(  ldx     #0)
        clra
        clrb
        rts
#else
setjmp:
        xgdx
        movw    0,sp,2,x+
        sts     2,x+
        movw    _.frame,2,x+
        movw    _.d1,2,x+
        movw    _.d2,2,x+
        movw    _.d3,2,x+
        movw    _.d4,2,x+
        movw    _.d5,2,x+
        movw    _.d6,2,x+
        movw    _.d7,2,x+
        movw    _.d8,2,x+
INT32(  ldx     #0)
        clra
        clrb
        rts
#endif
 
#ifdef mc6811
longjmp:
        xgdx
        tsy
        ldd     val,y
        bne     do_jump
        ldd     #1
do_jump:
        xgdy
        ldd     4,x
        std     REG(_.frame)
        ldd     6,x
        std     REG(_.d1)
        ldd     8,x
        std     REG(_.d2)
        ldd     10,x
        std     REG(_.d3)
        ldd     12,x
        std     REG(_.d4)
        ldd     14,x
        std     REG(_.d5)
        ldd     16,x
        std     REG(_.d6)
        ldd     18,x
        std     REG(_.d7)
        ldd     20,x
        std     REG(_.d8)
        ldd     0,x
        ldx     2,x
        txs
        std     0,x
INT32(  ldx     #0)
        xgdy
        rts
#else
 
longjmp:
        xgdx
        ldy     val,sp
        bne     do_jump
        ldy     #1
do_jump:
        ldd     4,x+
        movw    2,x+,_.frame
        movw    0,x,_.d1
        movw    2,x,_.d2
        movw    4,x,_.d3
        movw    6,x,_.d4
        movw    8,x,_.d5
        movw    10,x,_.d6
        movw    12,x,_.d7
        movw    14,x,_.d8
        ldx     -4,x
        txs
        std     0,x
INT32(  ldx     #0)
        xgdy
        rts
#endif
 

Line No.	Rev	Author	Line
1	207	jeremybenn	`/* setjmp/longjmp routines for M68HC11 & M68HC12.`
2			`* Copyright (C) 1999, 2000, 2001, 2002 Stephane Carrez (stcarrez@nerim.fr)`
3			`*`
4			`* The authors hereby grant permission to use, copy, modify, distribute,`
5			`* and license this software and its documentation for any purpose, provided`
6			`* that existing copyright notices are retained in all copies and that this`
7			`* notice is included verbatim in any distributions. No written agreement,`
8			`* license, or royalty fee is required for any of the authorized uses.`
9			`* Modifications to this software may be copyrighted by their authors`
10			`* and need not follow the licensing terms described here, provided that`
11			`* the new terms are clearly indicated on the first page of each file where`
12			`* they apply.`
13			`*/`
14
15			`#if __INT__ == 32`
16			`# define val 4`
17			`# define INT32(X) X`
18			`#else`
19			`# define val 2`
20			`# define INT32(X)`
21			`#endif`
22
23			`#ifdef mc6811`
24			`# define REG(X) *X`
25			`#else`
26			`# define REG(X) X`
27			`#endif`
28
29			`.sect .text`
30			`.global setjmp`
31			`.global longjmp`
32
33			`#ifdef mc6811`
34			`setjmp:`
35			`xgdx`
36			`tsy`
37			`ldd 0,y`
38			`std 0,x`
39			`sty 2,x`
40			`ldd REG(_.frame)`
41			`std 4,x`
42			`ldd REG(_.d1)`
43			`std 6,x`
44			`ldd REG(_.d2)`
45			`std 8,x`
46			`ldd REG(_.d3)`
47			`std 10,x`
48			`ldd REG(_.d4)`
49			`std 12,x`
50			`ldd REG(_.d5)`
51			`std 14,x`
52			`ldd REG(_.d6)`
53			`std 16,x`
54			`ldd REG(_.d7)`
55			`std 18,x`
56			`ldd REG(_.d8)`
57			`std 20,x`
58			`INT32( ldx #0)`
59			`clra`
60			`clrb`
61			`rts`
62			`#else`
63			`setjmp:`
64			`xgdx`
65			`movw 0,sp,2,x+`
66			`sts 2,x+`
67			`movw _.frame,2,x+`
68			`movw _.d1,2,x+`
69			`movw _.d2,2,x+`
70			`movw _.d3,2,x+`
71			`movw _.d4,2,x+`
72			`movw _.d5,2,x+`
73			`movw _.d6,2,x+`
74			`movw _.d7,2,x+`
75			`movw _.d8,2,x+`
76			`INT32( ldx #0)`
77			`clra`
78			`clrb`
79			`rts`
80			`#endif`
81
82			`#ifdef mc6811`
83			`longjmp:`
84			`xgdx`
85			`tsy`
86			`ldd val,y`
87			`bne do_jump`
88			`ldd #1`
89			`do_jump:`
90			`xgdy`
91			`ldd 4,x`
92			`std REG(_.frame)`
93			`ldd 6,x`
94			`std REG(_.d1)`
95			`ldd 8,x`
96			`std REG(_.d2)`
97			`ldd 10,x`
98			`std REG(_.d3)`
99			`ldd 12,x`
100			`std REG(_.d4)`
101			`ldd 14,x`
102			`std REG(_.d5)`
103			`ldd 16,x`
104			`std REG(_.d6)`
105			`ldd 18,x`
106			`std REG(_.d7)`
107			`ldd 20,x`
108			`std REG(_.d8)`
109			`ldd 0,x`
110			`ldx 2,x`
111			`txs`
112			`std 0,x`
113			`INT32( ldx #0)`
114			`xgdy`
115			`rts`
116			`#else`
117
118			`longjmp:`
119			`xgdx`
120			`ldy val,sp`
121			`bne do_jump`
122			`ldy #1`
123			`do_jump:`
124			`ldd 4,x+`
125			`movw 2,x+,_.frame`
126			`movw 0,x,_.d1`
127			`movw 2,x,_.d2`
128			`movw 4,x,_.d3`
129			`movw 6,x,_.d4`
130			`movw 8,x,_.d5`
131			`movw 10,x,_.d6`
132			`movw 12,x,_.d7`
133			`movw 14,x,_.d8`
134			`ldx -4,x`
135			`txs`
136			`std 0,x`
137			`INT32( ldx #0)`
138			`xgdy`
139			`rts`
140			`#endif`
141

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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [machine/] [m68hc11/] [setjmp.S] - Blame information for rev 207