RTEMS: cpukit/score/cpu/mips/include/rtems/asm.h Source File

| RTEMS 5.4-rc2

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