xref: /netbsd/sys/arch/vax/include/asm.h (revision 6550d01e)
1 /*	$NetBSD: asm.h,v 1.23 2011/01/25 02:37:35 matt Exp $ */
2 /*
3  * Copyright (c) 1982, 1993
4  *	The Regents of the University of California.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. Neither the name of the University nor the names of its contributors
15  *    may be used to endorse or promote products derived from this software
16  *    without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  *	@(#)DEFS.h	8.1 (Berkeley) 6/4/93
31  */
32 
33 #ifndef _VAX_ASM_H_
34 #define _VAX_ASM_H_
35 
36 #define R0	0x001
37 #define R1	0x002
38 #define R2	0x004
39 #define R3	0x008
40 #define R4	0x010
41 #define R5	0x020
42 #define R6	0x040
43 #define R7 	0x080
44 #define R8	0x100
45 #define R9	0x200
46 #define R10	0x400
47 #define R11	0x800
48 
49 #define _C_LABEL(x)	x
50 
51 #define	_ASM_LABEL(x)	x
52 
53 #ifdef __STDC__
54 # define __CONCAT(x,y)	x ## y
55 # define __STRING(x)	#x
56 #else
57 # define __CONCAT(x,y)	x/**/y
58 # define __STRING(x)	"x"
59 #endif
60 
61 /* let kernels and others override entrypoint alignment */
62 #ifndef _ALIGN_TEXT
63 # define _ALIGN_TEXT .p2align 2
64 #endif
65 
66 #define	_ENTRY(x, regs) \
67 	.text; _ALIGN_TEXT; .globl x; .type x@function; x: .word regs
68 
69 #ifdef GPROF
70 # define _PROF_PROLOGUE	\
71 	.data; 1:; .long 0; .text; moval 1b,%r0; jsb _ASM_LABEL(__mcount)
72 #else
73 # define _PROF_PROLOGUE
74 #endif
75 
76 #define ENTRY(x, regs)		_ENTRY(_C_LABEL(x), regs); _PROF_PROLOGUE
77 #define NENTRY(x, regs)		_ENTRY(_C_LABEL(x), regs)
78 #define ASENTRY(x, regs)	_ENTRY(_ASM_LABEL(x), regs); _PROF_PROLOGUE
79 #define END(x)			.size _C_LABEL(x),.-_C_LABEL(x)
80 
81 #define ALTENTRY(x)		.globl _C_LABEL(x); _C_LABEL(x):
82 #define RCSID(name)		.pushsection ".ident"; .asciz name; .popsection
83 
84 
85 #define	WEAK_ALIAS(alias,sym)						\
86 	.weak alias;							\
87 	alias = sym
88 
89 /*
90  * STRONG_ALIAS: create a strong alias.
91  */
92 #define STRONG_ALIAS(alias,sym)						\
93 	.globl alias;							\
94 	alias = sym
95 
96 #ifdef __STDC__
97 #define	WARN_REFERENCES(sym,msg)					\
98 	.pushsection .gnu.warning. ## sym;				\
99 	.ascii msg;							\
100 	.popsection
101 #else
102 #define	WARN_REFERENCES(sym,msg)					\
103 	.pushsection .gnu.warning./**/sym;				\
104 	.ascii msg;							\
105 	.popsection
106 #endif /* __STDC__ */
107 
108 #endif /* !_VAX_ASM_H_ */
109