2/* From: NetBSD: asm.h,v 1.18 1997/11/03 04:22:06 ross Exp */
3
4/*
5 * Copyright (c) 1991,1990,1989,1994,1995,1996 Carnegie Mellon University
6 * All Rights Reserved.
7 *
8 * Permission to use, copy, modify and distribute this software and its
9 * documentation is hereby granted, provided that both the copyright
10 * notice and this permission notice appear in all copies of the
11 * software, derivative works or modified versions, and any portions
12 * thereof, and that both notices appear in supporting documentation.
13 *
14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
16 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
17 *
18 * Carnegie Mellon requests users of this software to return to
19 *
20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
21 * School of Computer Science
22 * Carnegie Mellon University
23 * Pittsburgh PA 15213-3890
24 *
25 * any improvements or extensions that they make and grant Carnegie Mellon
26 * the rights to redistribute these changes.
27 */
28
29/*
30 * Assembly coding style
31 *
32 * This file contains macros and register defines to
33 * aid in writing more readable assembly code.
34 * Some rules to make assembly code understandable by
35 * a debugger are also noted.
36 */
37
38/*
39 * Macro to make a local label name.
40 */
41#define LLABEL(name,num) L ## name ## num
42
43/*
44 * MCOUNT
45 */
46
47#if !defined(GPROF) && !defined(PROF)
48#define MCOUNT /* nothing */
49#else
50#define MCOUNT \
51 br.call.sptk.many b7=_mcount
52#endif
53
54/*
55 * ENTRY
56 * Declare a global leaf function.
57 * A leaf function does not call other functions.
58 */
59#define ENTRY(_name_, _n_args_) \
60 .global _name_; \
61 .align 16; \
62 .proc _name_; \
63_name_:; \
64 .regstk _n_args_, 0, 0, 0 \
65 MCOUNT
66
67#define ENTRY_NOPROFILE(_name_, _n_args_) \
68 .global _name_; \
69 .align 16; \
70 .proc _name_; \
71_name_:; \
72 .regstk _n_args_, 0, 0, 0
73
74/*
75 * STATIC_ENTRY
76 * Declare a local leaf function.
77 */
78#define STATIC_ENTRY(_name_, _n_args_) \
79 .align 16; \
80 .proc _name_; \
81_name_:; \
82 .regstk _n_args_, 0, 0, 0 \
83 MCOUNT
84/*
85 * XENTRY
86 * Global alias for a leaf function, or alternate entry point
87 */
88#define XENTRY(_name_) \
89 .globl _name_; \
90_name_:
91
92/*
93 * STATIC_XENTRY
94 * Local alias for a leaf function, or alternate entry point
95 */
96#define STATIC_XENTRY(_name_) \
97_name_:
98
99
100/*
101 * END
102 * Function delimiter
103 */
104#define END(_name_) \
105 .endp _name_
106
107
108/*
109 * EXPORT
110 * Export a symbol
111 */
112#define EXPORT(_name_) \
113 .global _name_; \
114_name_:
115
116
117/*
118 * IMPORT
119 * Make an external name visible, typecheck the size
120 */
121#define IMPORT(_name_, _size_) \
122 /* .extern _name_,_size_ */
123
124
125/*
126 * ABS
127 * Define an absolute symbol
128 */
129#define ABS(_name_, _value_) \
130 .globl _name_; \
131_name_ = _value_
132
133
134/*
135 * BSS
136 * Allocate un-initialized space for a global symbol
137 */
138#define BSS(_name_,_numbytes_) \
139 .comm _name_,_numbytes_
140
141
142/*
143 * MSG
144 * Allocate space for a message (a read-only ascii string)
145 */
146#define ASCIZ .asciz
147#define MSG(msg,reg,label) \
148 addl reg,@ltoff(label),gp;; \
149 ld8 reg=[reg];; \
150 .data; \
151label: ASCIZ msg; \
152 .text;
153
| 2/* From: NetBSD: asm.h,v 1.18 1997/11/03 04:22:06 ross Exp */
3
4/*
5 * Copyright (c) 1991,1990,1989,1994,1995,1996 Carnegie Mellon University
6 * All Rights Reserved.
7 *
8 * Permission to use, copy, modify and distribute this software and its
9 * documentation is hereby granted, provided that both the copyright
10 * notice and this permission notice appear in all copies of the
11 * software, derivative works or modified versions, and any portions
12 * thereof, and that both notices appear in supporting documentation.
13 *
14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
16 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
17 *
18 * Carnegie Mellon requests users of this software to return to
19 *
20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
21 * School of Computer Science
22 * Carnegie Mellon University
23 * Pittsburgh PA 15213-3890
24 *
25 * any improvements or extensions that they make and grant Carnegie Mellon
26 * the rights to redistribute these changes.
27 */
28
29/*
30 * Assembly coding style
31 *
32 * This file contains macros and register defines to
33 * aid in writing more readable assembly code.
34 * Some rules to make assembly code understandable by
35 * a debugger are also noted.
36 */
37
38/*
39 * Macro to make a local label name.
40 */
41#define LLABEL(name,num) L ## name ## num
42
43/*
44 * MCOUNT
45 */
46
47#if !defined(GPROF) && !defined(PROF)
48#define MCOUNT /* nothing */
49#else
50#define MCOUNT \
51 br.call.sptk.many b7=_mcount
52#endif
53
54/*
55 * ENTRY
56 * Declare a global leaf function.
57 * A leaf function does not call other functions.
58 */
59#define ENTRY(_name_, _n_args_) \
60 .global _name_; \
61 .align 16; \
62 .proc _name_; \
63_name_:; \
64 .regstk _n_args_, 0, 0, 0 \
65 MCOUNT
66
67#define ENTRY_NOPROFILE(_name_, _n_args_) \
68 .global _name_; \
69 .align 16; \
70 .proc _name_; \
71_name_:; \
72 .regstk _n_args_, 0, 0, 0
73
74/*
75 * STATIC_ENTRY
76 * Declare a local leaf function.
77 */
78#define STATIC_ENTRY(_name_, _n_args_) \
79 .align 16; \
80 .proc _name_; \
81_name_:; \
82 .regstk _n_args_, 0, 0, 0 \
83 MCOUNT
84/*
85 * XENTRY
86 * Global alias for a leaf function, or alternate entry point
87 */
88#define XENTRY(_name_) \
89 .globl _name_; \
90_name_:
91
92/*
93 * STATIC_XENTRY
94 * Local alias for a leaf function, or alternate entry point
95 */
96#define STATIC_XENTRY(_name_) \
97_name_:
98
99
100/*
101 * END
102 * Function delimiter
103 */
104#define END(_name_) \
105 .endp _name_
106
107
108/*
109 * EXPORT
110 * Export a symbol
111 */
112#define EXPORT(_name_) \
113 .global _name_; \
114_name_:
115
116
117/*
118 * IMPORT
119 * Make an external name visible, typecheck the size
120 */
121#define IMPORT(_name_, _size_) \
122 /* .extern _name_,_size_ */
123
124
125/*
126 * ABS
127 * Define an absolute symbol
128 */
129#define ABS(_name_, _value_) \
130 .globl _name_; \
131_name_ = _value_
132
133
134/*
135 * BSS
136 * Allocate un-initialized space for a global symbol
137 */
138#define BSS(_name_,_numbytes_) \
139 .comm _name_,_numbytes_
140
141
142/*
143 * MSG
144 * Allocate space for a message (a read-only ascii string)
145 */
146#define ASCIZ .asciz
147#define MSG(msg,reg,label) \
148 addl reg,@ltoff(label),gp;; \
149 ld8 reg=[reg];; \
150 .data; \
151label: ASCIZ msg; \
152 .text;
153
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