source:
rtems/cpukit/score/cpu/i960/asm.h
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3a4ae6c
Last change on this file since 3a4ae6c was 3a4ae6c, checked in by Joel Sherrill <joel.sherrill@…>, on 09/11/95 at 19:35:39 | |
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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. |
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 | #define ASM |
34 | #include <rtems/core/i960.h> |
35 | |
36 | /* |
37 | * Recent versions of GNU cpp define variables which indicate the |
38 | * need for underscores and percents. If not using GNU cpp or |
39 | * the version does not support this, then you will obviously |
40 | * have to define these as appropriate. |
41 | */ |
42 | |
43 | #ifndef __USER_LABEL_PREFIX__ |
44 | #define __USER_LABEL_PREFIX__ _ |
45 | #endif |
46 | |
47 | #ifndef __REGISTER_PREFIX__ |
48 | #define __REGISTER_PREFIX__ |
49 | #endif |
50 | |
51 | /* ANSI concatenation macros. */ |
52 | |
53 | #define CONCAT1(a, b) CONCAT2(a, b) |
54 | #define CONCAT2(a, b) a ## b |
55 | |
56 | /* Use the right prefix for global labels. */ |
57 | |
58 | #define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x) |
59 | |
60 | /* Use the right prefix for registers. */ |
61 | |
62 | #define REG(x) CONCAT1 (__REGISTER_PREFIX__, x) |
63 | |
64 | #define g0 REG (g0) |
65 | #define g1 REG (g1) |
66 | #define g2 REG (g2) |
67 | #define g3 REG (g3) |
68 | #define g4 REG (g4) |
69 | #define g5 REG (g5) |
70 | #define g6 REG (g6) |
71 | #define g7 REG (g7) |
72 | #define g8 REG (g8) |
73 | #define g9 REG (g9) |
74 | #define g10 REG (g10) |
75 | #define g11 REG (g11) |
76 | #define g12 REG (g12) |
77 | #define g13 REG (g13) |
78 | #define g14 REG (g14) |
79 | #define g15 REG (g15) |
80 | |
81 | /* |
82 | * Define macros to handle section beginning and ends. |
83 | */ |
84 | |
85 | |
86 | #define BEGIN_CODE_DCL .text |
87 | #define END_CODE_DCL |
88 | #define BEGIN_DATA_DCL .data |
89 | #define END_DATA_DCL |
90 | #define BEGIN_CODE .text |
91 | #define END_CODE |
92 | #define BEGIN_DATA |
93 | #define END_DATA |
94 | #define BEGIN_BSS |
95 | #define END_BSS |
96 | #define END |
97 | |
98 | /* |
99 | * Following must be tailor for a particular flavor of the C compiler. |
100 | * They may need to put underscores in front of the symbols. |
101 | */ |
102 | |
103 | #define PUBLIC(sym) .globl SYM (sym) |
104 | #define EXTERN(sym) .globl SYM (sym) |
105 | |
106 | #endif |
107 | /* end of include file */ |
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