source: rtems/cpukit/score/cpu/m68k/asm.h @ 270e3cc

4.104.114.84.95
Last change on this file since 270e3cc was 270e3cc, checked in by Joel Sherrill <joel.sherrill@…>, on Jul 11, 2000 at 2:56:04 PM

Patch rtems-rc-20000711-1-cvs.diff from Ralf Corsepius <corsepiu@…>
that decouples exec/ for the sh, m68k and i960 from targopts.h.

NOTE: The change to system.h is a hack to enable cpuopts.h
for some targets, but keep using targopts.h for others - I know it
does *not* work for sparc, mips, i386 and ppc. This will have
to be addressed as work continues on multilibing.

  • Property mode set to 100644
File size: 3.1 KB
Line 
1/*  asm.h
2 *
3 *  This include file attempts to address the problems
4 *  caused by incompatible flavors of assemblers and
5 *  toolsets.  It primarily addresses variations in the
6 *  use of leading underscores on symbols and the requirement
7 *  that register names be preceded by a %.
8 *
9 *
10 *  NOTE: The spacing in the use of these macros
11 *        is critical to them working as advertised.
12 *
13 *  COPYRIGHT:
14 *
15 *  This file is based on similar code found in newlib available
16 *  from ftp.cygnus.com.  The file which was used had no copyright
17 *  notice.  This file is freely distributable as long as the source
18 *  of the file is noted.  This file is:
19 *
20 *  COPYRIGHT (c) 1994-1997.
21 *  On-Line Applications Research Corporation (OAR).
22 *
23 *  $Id$
24 */
25
26#ifndef __M68k_ASM_h
27#define __M68k_ASM_h
28
29/*
30 *  Indicate we are in an assembly file and get the basic CPU definitions.
31 */
32
33#ifndef ASM
34#define ASM
35#endif
36#include <rtems/score/cpuopts.h>
37#include <rtems/score/cpu.h>
38
39/*
40 *  Recent versions of GNU cpp define variables which indicate the
41 *  need for underscores and percents.  If not using GNU cpp or
42 *  the version does not support this, then you will obviously
43 *  have to define these as appropriate.
44 */
45
46#ifndef __USER_LABEL_PREFIX__
47#define __USER_LABEL_PREFIX__ _
48#endif
49
50#ifndef __REGISTER_PREFIX__
51#define __REGISTER_PREFIX__
52#endif
53
54/* ANSI concatenation macros.  */
55
56#define CONCAT1(a, b) CONCAT2(a, b)
57#define CONCAT2(a, b) a ## b
58
59/* Use the right prefix for global labels.  */
60
61#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
62
63/* Use the right prefix for registers.  */
64
65#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
66
67#define d0 REG (d0)
68#define d1 REG (d1)
69#define d2 REG (d2)
70#define d3 REG (d3)
71#define d4 REG (d4)
72#define d5 REG (d5)
73#define d6 REG (d6)
74#define d7 REG (d7)
75#define a0 REG (a0)
76#define a1 REG (a1)
77#define a2 REG (a2)
78#define a3 REG (a3)
79#define a4 REG (a4)
80#define a5 REG (a5)
81#define a6 REG (a6)
82#define a7 REG (a7)
83#define sp REG (sp)
84
85#define msp REG (msp)
86#define usp REG (usp)
87#define isp REG (isp)
88#define sr  REG (sr)
89#define vbr REG (vbr)
90#define dfc REG (dfc)
91#define sfc REG (sfc)
92
93/* mcf52xx special regs */
94#define cacr    REG (cacr)
95#define acr0    REG (acr0)
96#define acr1    REG (acr1)
97#define rambar0 REG (rambar0)
98#define mbar    REG (mbar)
99
100
101#define fp0 REG (fp0)
102#define fp1 REG (fp1)
103#define fp2 REG (fp2)
104#define fp3 REG (fp3)
105#define fp4 REG (fp4)
106#define fp5 REG (fp5)
107#define fp6 REG (fp6)
108#define fp7 REG (fp7)
109
110#define fpc REG (fpc)
111#define fpi REG (fpi)
112#define fps REG (fps)
113#define fpsr REG (fpsr)
114
115
116/*
117 *  Define macros to handle section beginning and ends.
118 */
119
120
121#define BEGIN_CODE_DCL .text
122#define END_CODE_DCL
123#define BEGIN_DATA_DCL .data
124#define END_DATA_DCL
125#define BEGIN_CODE .text
126#define END_CODE
127#define BEGIN_DATA .data
128#define END_DATA
129#define BEGIN_BSS .bss
130#define END_BSS
131#define END
132
133/*
134 *  Following must be tailor for a particular flavor of the C compiler.
135 *  They may need to put underscores in front of the symbols.
136 */
137
138#define PUBLIC(sym) .globl SYM (sym)
139#define EXTERN(sym) .globl SYM (sym)
140
141#endif
142/* end of include file */
143
144
Note: See TracBrowser for help on using the repository browser.