xref: /netbsd/sys/arch/powerpc/include/asm.h (revision bf9ec67e)
1 /*	$NetBSD: asm.h,v 1.8 2001/06/13 06:01:48 simonb Exp $	*/
2 
3 /*
4  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
5  * Copyright (C) 1995, 1996 TooLs GmbH.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by TooLs GmbH.
19  * 4. The name of TooLs GmbH may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #ifndef _PPC_ASM_H_
35 #define _PPC_ASM_H_
36 
37 #ifdef PIC
38 #define PIC_PROLOGUE	XXX
39 #define PIC_EPILOGUE	XXX
40 #define PIC_PLT(x)	x@plt
41 #ifdef	__STDC__
42 #define PIC_GOT(x)	XXX
43 #define PIC_GOTOFF(x)	XXX
44 #else	/* not __STDC__ */
45 #define PIC_GOT(x)	XXX
46 #define PIC_GOTOFF(x)	XXX
47 #endif	/* __STDC__ */
48 #else
49 #define PIC_PROLOGUE
50 #define PIC_EPILOGUE
51 #define PIC_PLT(x)	x
52 #define PIC_GOT(x)	x
53 #define PIC_GOTOFF(x)	x
54 #endif
55 
56 #define	_C_LABEL(x)	x
57 #define	_ASM_LABEL(x)	x
58 
59 #define	_GLOBAL(x) \
60 	.data; .align 2; .globl x; x:
61 
62 #define _ENTRY(x) \
63 	.text; .align 2; .globl x; .type x,@function; x:
64 
65 #ifdef GPROF
66 # define _PROF_PROLOGUE	mflr 0; stw 0,4(1); bl _mcount
67 #else
68 # define _PROF_PROLOGUE
69 #endif
70 
71 #define	ENTRY(y)	_ENTRY(_C_LABEL(y)); _PROF_PROLOGUE
72 #define	ASENTRY(y)	_ENTRY(_ASM_LABEL(y)); _PROF_PROLOGUE
73 #define	GLOBAL(y)	_GLOBAL(_C_LABEL(y))
74 
75 #define	ASMSTR		.asciz
76 
77 #define RCSID(x)	.text; .asciz x
78 
79 #ifdef __ELF__
80 #define	WEAK_ALIAS(alias,sym)						\
81 	.weak alias;							\
82 	alias = sym
83 #endif
84 
85 #ifdef __STDC__
86 #define	WARN_REFERENCES(_sym,_msg)				\
87 	.section .gnu.warning. ## _sym ; .ascii _msg ; .text
88 #else
89 #define	WARN_REFERENCES(_sym,_msg)				\
90 	.section .gnu.warning./**/_sym ; .ascii _msg ; .text
91 #endif /* __STDC__ */
92 
93 /* Condition Register Bit Fields */
94 
95 #define cr0     0
96 #define cr1     1
97 #define cr2     2
98 #define cr3     3
99 #define cr4     4
100 #define cr5     5
101 #define cr6     6
102 #define cr7     7
103 
104 /* General Purpose Registers (GPRs) */
105 
106 #define r0      0
107 #define r1      1
108 #define r2      2
109 #define r3      3
110 #define r4      4
111 #define r5      5
112 #define r6      6
113 #define r7      7
114 #define r8      8
115 #define r9      9
116 #define r10     10
117 #define r11     11
118 #define r12     12
119 #define r13     13
120 #define r14     14
121 #define r15     15
122 #define r16     16
123 #define r17     17
124 #define r18     18
125 #define r19     19
126 #define r20     20
127 #define r21     21
128 #define r22     22
129 #define r23     23
130 #define r24     24
131 #define r25     25
132 #define r26     26
133 #define r27     27
134 #define r28     28
135 #define r29     29
136 #define r30     30
137 #define r31     31
138 
139 /* Floating Point Registers (FPRs) */
140 
141 #define fr0     0
142 #define fr1     1
143 #define fr2     2
144 #define fr3     3
145 #define fr4     4
146 #define fr5     5
147 #define fr6     6
148 #define fr7     7
149 #define fr8     8
150 #define fr9     9
151 #define fr10    10
152 #define fr11    11
153 #define fr12    12
154 #define fr13    13
155 #define fr14    14
156 #define fr15    15
157 #define fr16    16
158 #define fr17    17
159 #define fr18    18
160 #define fr19    19
161 #define fr20    20
162 #define fr21    21
163 #define fr22    22
164 #define fr23    23
165 #define fr24    24
166 #define fr25    25
167 #define fr26    26
168 #define fr27    27
169 #define fr28    28
170 #define fr29    29
171 #define fr30    30
172 #define fr31    31
173 
174 #endif /* !_PPC_ASM_H_ */
175