1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/tools/gendec.h	Thu Aug 23 12:33:27 2007 +0000
     1.3 @@ -0,0 +1,84 @@
     1.4 +/**
     1.5 + * $Id: gendec.h,v 1.1 2007-08-23 12:33:27 nkeynes Exp $
     1.6 + *
     1.7 + * mem is responsible for creating and maintaining the overall system memory
     1.8 + * map, as visible from the SH4 processor. (Note the ARM has a different map)
     1.9 + *
    1.10 + * Copyright (c) 2005 Nathan Keynes.
    1.11 + *
    1.12 + * This program is free software; you can redistribute it and/or modify
    1.13 + * it under the terms of the GNU General Public License as published by
    1.14 + * the Free Software Foundation; either version 2 of the License, or
    1.15 + * (at your option) any later version.
    1.16 + *
    1.17 + * This program is distributed in the hope that it will be useful,
    1.18 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.19 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.20 + * GNU General Public License for more details.
    1.21 + */
    1.22 +
    1.23 +#ifndef gendec_H
    1.24 +#define gendec_H
    1.25 +
    1.26 +#include <stdint.h>
    1.27 +
    1.28 +#ifdef __cplusplus
    1.29 +extern "C" {
    1.30 +#endif
    1.31 +
    1.32 +#define MAX_OPERAND_NAME 8
    1.33 +#define MAX_OPERANDS 4
    1.34 +#define MAX_OPERATION_FORMAT 64
    1.35 +#define MAX_RULES 512
    1.36 +
    1.37 +#define USE_NONE 0
    1.38 +#define USE_READ 1
    1.39 +#define USE_WRITE 2
    1.40 +#define USE_READWRITE 3
    1.41 +
    1.42 +struct operand {
    1.43 +    int bit_count;
    1.44 +    int bit_shift;
    1.45 +    int left_shift;
    1.46 +    int is_signed;
    1.47 +    int use_mode;
    1.48 +    char name[MAX_OPERAND_NAME+1];
    1.49 +};
    1.50 +
    1.51 +struct rule {
    1.52 +    uint32_t bits;
    1.53 +    uint32_t mask;
    1.54 +    int bit_count;
    1.55 +    int operand_count;
    1.56 +    int flags_use_mode;
    1.57 +    struct operand operands[MAX_OPERANDS];
    1.58 +    char format[MAX_OPERATION_FORMAT+1];
    1.59 +};
    1.60 +
    1.61 +struct ruleset {
    1.62 +    uint32_t rule_count;
    1.63 +    struct rule *rules[MAX_RULES];
    1.64 +};
    1.65 +
    1.66 +struct ruleset *parse_ruleset_file( FILE *f );
    1.67 +    void dump_ruleset( struct ruleset *rules, FILE *f );
    1.68 +
    1.69 +struct action {
    1.70 +    char operand_names[MAX_OPERANDS][MAX_OPERAND_NAME+1];
    1.71 +    char *body;
    1.72 +};
    1.73 +
    1.74 +struct actionset {
    1.75 +    char *pretext;
    1.76 +    char *posttext;
    1.77 +    char *actions[MAX_RULES];
    1.78 +};
    1.79 +
    1.80 +struct actionset *parse_action_file( struct ruleset *rules, FILE *f );
    1.81 +
    1.82 +int generate_decoder( struct ruleset *rules, struct actionset *actions, FILE *f );
    1.83 +
    1.84 +#ifdef __cplusplus
    1.85 +}
    1.86 +#endif
    1.87 +#endif