source: rtems/cpukit/score/cpu/mips/rtems/asm.h @ c163e3b9

4.104.114.84.95
Last change on this file since c163e3b9 was c163e3b9, checked in by Joel Sherrill <joel.sherrill@…>, on Apr 26, 2005 at 11:36:33 PM

2005-04-26 Joel Sherrill <joel@…>

  • rtems/asm.h: Eliminate warnings.
  • Property mode set to 100644
File size: 3.5 KB
Line 
1/**
2 * @file rtems/asm.h
3 *
4 *  This include file attempts to address the problems
5 *  caused by incompatible flavors of assemblers and
6 *  toolsets.  It primarily addresses variations in the
7 *  use of leading underscores on symbols and the requirement
8 *  that register names be preceded by a %.
9 */
10
11/*
12 *  NOTE: The spacing in the use of these macros
13 *        is critical to them working as advertised.
14 *
15 *  COPYRIGHT:
16 *
17 *  This file is based on similar code found in newlib available
18 *  from ftp.cygnus.com.  The file which was used had no copyright
19 *  notice.  This file is freely distributable as long as the source
20 *  of the file is noted.  This file is:
21 *
22 *  COPYRIGHT (c) 1994-1997.
23 *  On-Line Applications Research Corporation (OAR).
24 *
25 *  $Id$
26 */
27/* @(#)asm.h       03/15/96     1.1 */
28
29#ifndef _RTEMS_ASM_H
30#define _RTEMS_ASM_H
31
32/*
33 *  Indicate we are in an assembly file and get the basic CPU definitions.
34 */
35
36#ifndef ASM
37#define ASM
38#endif
39#include <rtems/score/cpuopts.h>
40#include <rtems/score/mips.h>
41
42/*
43 *  Recent versions of GNU cpp define variables which indicate the
44 *  need for underscores and percents.  If not using GNU cpp or
45 *  the version does not support this, then you will obviously
46 *  have to define these as appropriate.
47 */
48
49#ifndef __USER_LABEL_PREFIX__
50#define __USER_LABEL_PREFIX__ _
51#endif
52
53#ifndef __REGISTER_PREFIX__
54#define __REGISTER_PREFIX__
55#endif
56
57/* ANSI concatenation macros.  */
58
59#define CONCAT1(a, b) CONCAT2(a, b)
60#define CONCAT2(a, b) a ## b
61
62/* Use the right prefix for global labels.  */
63
64#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
65
66/* Use the right prefix for registers.  */
67
68#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
69
70/*
71 *  define macros for all of the registers on this CPU
72 *
73 *  EXAMPLE:     #define d0 REG (d0)
74 */
75
76/*
77 *  Define macros to handle section beginning and ends.
78 */
79
80
81#define BEGIN_CODE_DCL .text
82#define END_CODE_DCL
83#define BEGIN_DATA_DCL .data
84#define END_DATA_DCL
85#define BEGIN_CODE .text
86#define END_CODE
87#define BEGIN_DATA
88#define END_DATA
89#define BEGIN_BSS
90#define END_BSS
91#define END
92
93/*
94 *  Following must be tailor for a particular flavor of the C compiler.
95 *  They may need to put underscores in front of the symbols.
96 */
97
98#define PUBLIC(sym) .globl SYM (sym)
99#define EXTERN(sym) .globl SYM (sym)
100
101/*
102 *  Debugger macros for assembly language routines. Allows the
103 *  programmer to set up the necessary stack frame info
104 *  required by debuggers to do stack traces.
105 */
106
107#ifndef XDS
108#define FRAME(name,frm_reg,offset,ret_reg)      \
109        .globl  name;                           \
110        .ent    name;                           \
111name:;                                          \
112        .frame  frm_reg,offset,ret_reg
113#define ENDFRAME(name)                          \
114        .end name
115#else
116#define FRAME(name,frm_reg,offset,ret_reg)      \
117        .globl  _##name;\
118_##name:
119#define ENDFRAME(name)
120#endif /* XDS */
121
122/*
123 * Hardware Floating Point Registers
124 */
125
126#define R_FP0   0
127#define R_FP1   1
128#define R_FP2   2
129#define R_FP3   3
130#define R_FP4   4
131#define R_FP5   5
132#define R_FP6   6
133#define R_FP7   7
134#define R_FP8   8
135#define R_FP9   9
136#define R_FP10  10
137#define R_FP11  11
138#define R_FP12  12
139#define R_FP13  13
140#define R_FP14  14
141#define R_FP15  15
142#define R_FP16  16
143#define R_FP17  17
144#define R_FP18  18
145#define R_FP19  19
146#define R_FP20  20
147#define R_FP21  21
148#define R_FP22  22
149#define R_FP23  23
150#define R_FP24  24
151#define R_FP25  25
152#define R_FP26  26
153#define R_FP27  27
154#define R_FP28  28
155#define R_FP29  29
156#define R_FP30  30
157#define R_FP31  31
158
159#endif
160/* end of include file */
161
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