source: rtems/c/src/exec/score/cpu/i960/asm.h @ 7e950a4

4.104.114.84.95
Last change on this file since 7e950a4 was 270e3cc, checked in by Joel Sherrill <joel.sherrill@…>, on 07/11/00 at 14:56:04

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: 2.5 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 __i960_ASM_h
27#define __i960_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/i960.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 g0  REG (g0)
68#define g1  REG (g1)
69#define g2  REG (g2)
70#define g3  REG (g3)
71#define g4  REG (g4)
72#define g5  REG (g5)
73#define g6  REG (g6)
74#define g7  REG (g7)
75#define g8  REG (g8)
76#define g9  REG (g9)
77#define g10 REG (g10)
78#define g11 REG (g11)
79#define g12 REG (g12)
80#define g13 REG (g13)
81#define g14 REG (g14)
82#define g15 REG (g15)
83
84/*
85 *  Define macros to handle section beginning and ends.
86 */
87
88
89#define BEGIN_CODE_DCL .text
90#define END_CODE_DCL
91#define BEGIN_DATA_DCL .data
92#define END_DATA_DCL
93#define BEGIN_CODE .text
94#define END_CODE
95#define BEGIN_DATA
96#define END_DATA
97#define BEGIN_BSS
98#define END_BSS
99#define END
100
101/*
102 *  Following must be tailor for a particular flavor of the C compiler.
103 *  They may need to put underscores in front of the symbols.
104 */
105
106#define PUBLIC(sym) .globl SYM (sym)
107#define EXTERN(sym) .globl SYM (sym)
108
109#endif
110/* end of include file */
Note: See TracBrowser for help on using the repository browser.