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efec4a28 DP |
1 | |
2 | /* itbl-lex.l | |
3 | ||
4 | Copyright (C) 1997 Free Software Foundation, Inc. | |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
21 | 02111-1307, USA. */ | |
22 | ||
8e5c905e DP |
23 | %{ |
24 | #include <stdio.h> | |
25 | #include <string.h> | |
26 | #include <stdlib.h> | |
27 | #include <ctype.h> | |
28 | #include "itbl-parse.h" | |
29 | ||
30 | #ifdef DEBUG | |
31 | #define DBG(x) printf x | |
32 | #define MDBG(x) printf x | |
33 | #else | |
34 | #define DBG(x) | |
35 | #define MDBG(x) | |
36 | #endif | |
37 | ||
38 | int insntbl_line = 1; | |
39 | %} | |
40 | ||
41 | ALNUM [A-Za-z0-9_] | |
42 | DIGIT [0-9] | |
43 | ALPHA [A-Za-z_] | |
44 | HEX [0-9A-Fa-f] | |
45 | ||
46 | %% | |
47 | ||
efec4a28 DP |
48 | "creg"|"CREG" { |
49 | return CREG; | |
50 | } | |
51 | "dreg"|"DREG" { | |
52 | return DREG; | |
53 | } | |
54 | "greg"|"GREG" { | |
55 | return GREG; | |
56 | } | |
57 | "immed"|"IMMED" { | |
58 | return IMMED; | |
59 | } | |
60 | "addr"|"ADDR" { | |
61 | return ADDR; | |
62 | } | |
63 | "insn"|"INSN" { | |
64 | return INSN; | |
65 | } | |
8e5c905e | 66 | "p"{DIGIT} { |
efec4a28 DP |
67 | yytext[yyleng] = 0; |
68 | yylval.processor = strtoul (yytext+1, 0, 0); | |
69 | return PNUM; | |
70 | } | |
71 | {DIGIT}+ { | |
72 | yytext[yyleng] = 0; | |
73 | yylval.num = strtoul (yytext, 0, 0); | |
74 | return NUM; | |
75 | } | |
76 | "0x"{HEX}+ { | |
77 | yytext[yyleng] = 0; | |
78 | yylval.num = strtoul (yytext, 0, 0); | |
79 | return NUM; | |
80 | } | |
8e5c905e | 81 | {ALPHA}{ALNUM}* { |
efec4a28 DP |
82 | yytext[yyleng] = 0; |
83 | yylval.str = strdup (yytext); | |
84 | return ID; | |
85 | } | |
8e5c905e | 86 | ";"|"#" { |
efec4a28 DP |
87 | int c; |
88 | while ((c = input ()) != EOF) | |
89 | { | |
90 | if (c == '\n') | |
91 | { | |
92 | unput (c); | |
93 | break; | |
94 | } | |
95 | } | |
96 | } | |
8e5c905e | 97 | "\n" { |
efec4a28 DP |
98 | insntbl_line++; |
99 | MDBG (("in lex, NL = %d (x%x)\n", NL, NL)); | |
100 | return NL; | |
101 | } | |
102 | " "|"\t" { | |
103 | } | |
104 | . { | |
105 | MDBG (("char = %x, %d\n", yytext[0], yytext[0])); | |
106 | return yytext[0]; | |
107 | } | |
8e5c905e DP |
108 | %% |
109 | ||
efec4a28 DP |
110 | int |
111 | yywrap () | |
112 | { | |
113 | return 1; | |
114 | } |