| 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 | |
| 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 | |
| 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 | } |
| 66 | "p"{DIGIT} { |
| 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 | } |
| 81 | {ALPHA}{ALNUM}* { |
| 82 | yytext[yyleng] = 0; |
| 83 | yylval.str = strdup (yytext); |
| 84 | return ID; |
| 85 | } |
| 86 | ";"|"#" { |
| 87 | int c; |
| 88 | while ((c = input ()) != EOF) |
| 89 | { |
| 90 | if (c == '\n') |
| 91 | { |
| 92 | unput (c); |
| 93 | break; |
| 94 | } |
| 95 | } |
| 96 | } |
| 97 | "\n" { |
| 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 | } |
| 108 | %% |
| 109 | |
| 110 | int |
| 111 | yywrap () |
| 112 | { |
| 113 | return 1; |
| 114 | } |