1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/* asm.h -- macros for m68k asm
*
* Copyright (c) 1995, 1996 Cygnus Support
*
* 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 0
/*
* XXX __USER_LABEL_PREFIX__ and __REGISTER_PREFIX__ do not work on gcc 2.7.0-3
* XXX The following ifdef magic fixes the problem but results in a warning
* XXX when compiling assembly code.
*/
#ifndef __USER_LABEL_PREFIX__
/* #define __USER_LABEL_PREFIX__ "" /* no underscore for coff */
#define __USER_LABEL_PREFIX__ _ /* leading underscore for aout */
#endif
#ifndef __REGISTER_PREFIX__
#define __REGISTER_PREFIX__ /* never has anything prefixed */
#endif
#endif
/*
* some assemblers choke on '#' as an immediate value. As gcc can also
* use '&', use that in those cases.
*/
#ifndef __IMMEDIATE_PREFIX__
#define __IMMEDIATE_PREFIX__ #
#endif
/* ANSI concatenation macros. */
#define CONCAT1(a, b) CONCAT2(a, b)
#define CONCAT2(a, b) a ## b
/* use the right prefix for global labels. */
#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__,x)
/* use the right prefix for registers. */
#define REG(x) CONCAT1 (__REGISTER_PREFIX__,x)
/* use the right prefix for immediate values. */
#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__,x)
/* use the right prefix for register names */
#define d0 REG (d0)
#define d1 REG (d1)
#define d2 REG (d2)
#define d3 REG (d3)
#define d4 REG (d4)
#define d5 REG (d5)
#define d6 REG (d6)
#define d7 REG (d7)
#define a0 REG (a0)
#define a1 REG (a1)
#define a2 REG (a2)
#define a3 REG (a3)
#define a4 REG (a4)
#define a5 REG (a5)
#define a6 REG (a6)
#define a7 REG (a7)
#define fp REG (fp)
#define fp0 REG (fp0)
#define fp1 REG (fp1)
#define fp2 REG (fp2)
#define fp3 REG (fp3)
#define fp4 REG (fp4)
#define fp5 REG (fp5)
#define fp6 REG (fp6)
#define fp7 REG (fp7)
#define sp REG (sp)
#define usp REG (usp)
#define vbr REG (vbr)
#define mbb REG (mbb)
#define sr REG (sr)
#define fpcr REG (fpcr)
#define fpsr REG (fpsr)
#define fpi REG (fpi)
/* Provide a few macros to allow for PIC code support.
* With PIC, data is stored A5 relative so we've got to take a bit of special
* care to ensure that all loads of global data is via A5. PIC also requires
* jumps and subroutine calls to be PC relative rather than absolute. We cheat
* a little on this and in the PIC case, we use short offset branches and
* hope that the final object code is within range (which it should be).
*/
#ifndef __PIC__
/* Non PIC (absolute/relocatable) versions */
.macro PICCALL addr
jbsr \addr
.endm
.macro PICJUMP addr
jmp \addr
.endm
.macro PICLEA sym, reg
lea \sym, \reg
.endm
.macro PICPEA sym, areg
pea \sym
.endm
#else /* __PIC__ */
/* Common for -mid-shared-libary and -msep-data */
.macro PICCALL addr
bsr \addr
.endm
.macro PICJUMP addr
bra \addr
.endm
# if defined(__ID_SHARED_LIBRARY__)
/* -mid-shared-library versions */
.macro PICLEA sym, reg
movel a5@(_current_shared_library_a5_offset_), \reg
movel \sym@GOT(\reg), \reg
.endm
.macro PICPEA sym, areg
movel a5@(_current_shared_library_a5_offset_), \areg
movel \sym@GOT(\areg), sp@-
.endm
# else /* !__ID_SHARED_LIBRARY__ */
/* Versions for -msep-data */
.macro PICLEA sym, reg
movel \sym@GOT(a5), \reg
.endm
.macro PICPEA sym, areg
movel \sym@GOT(a5), sp@-
.endm
# endif /* !__ID_SHARED_LIBRARY__ */
#endif /* __PIC__ */
|
