nkeynes@359: /**
nkeynes@420:  * $Id: gendec.h,v 1.2 2007-10-06 08:48:47 nkeynes Exp $
nkeynes@359:  *
nkeynes@359:  * mem is responsible for creating and maintaining the overall system memory
nkeynes@359:  * map, as visible from the SH4 processor. (Note the ARM has a different map)
nkeynes@359:  *
nkeynes@359:  * Copyright (c) 2005 Nathan Keynes.
nkeynes@359:  *
nkeynes@359:  * This program is free software; you can redistribute it and/or modify
nkeynes@359:  * it under the terms of the GNU General Public License as published by
nkeynes@359:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@359:  * (at your option) any later version.
nkeynes@359:  *
nkeynes@359:  * This program is distributed in the hope that it will be useful,
nkeynes@359:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@359:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@359:  * GNU General Public License for more details.
nkeynes@359:  */
nkeynes@359: 
nkeynes@359: #ifndef gendec_H
nkeynes@359: #define gendec_H
nkeynes@359: 
nkeynes@359: #include <stdint.h>
nkeynes@359: 
nkeynes@359: #ifdef __cplusplus
nkeynes@359: extern "C" {
nkeynes@359: #endif
nkeynes@359: 
nkeynes@359: #define MAX_OPERAND_NAME 8
nkeynes@359: #define MAX_OPERANDS 4
nkeynes@359: #define MAX_OPERATION_FORMAT 64
nkeynes@359: #define MAX_RULES 512
nkeynes@359: 
nkeynes@359: #define USE_NONE 0
nkeynes@359: #define USE_READ 1
nkeynes@359: #define USE_WRITE 2
nkeynes@359: #define USE_READWRITE 3
nkeynes@359: 
nkeynes@359: struct operand {
nkeynes@359:     int bit_count;
nkeynes@359:     int bit_shift;
nkeynes@359:     int left_shift;
nkeynes@359:     int is_signed;
nkeynes@359:     int use_mode;
nkeynes@359:     char name[MAX_OPERAND_NAME+1];
nkeynes@359: };
nkeynes@359: 
nkeynes@359: struct rule {
nkeynes@359:     uint32_t bits;
nkeynes@359:     uint32_t mask;
nkeynes@359:     int bit_count;
nkeynes@359:     int operand_count;
nkeynes@359:     int flags_use_mode;
nkeynes@359:     struct operand operands[MAX_OPERANDS];
nkeynes@359:     char format[MAX_OPERATION_FORMAT+1];
nkeynes@359: };
nkeynes@359: 
nkeynes@359: struct ruleset {
nkeynes@359:     uint32_t rule_count;
nkeynes@359:     struct rule *rules[MAX_RULES];
nkeynes@359: };
nkeynes@359: 
nkeynes@359: struct ruleset *parse_ruleset_file( FILE *f );
nkeynes@420: void dump_ruleset( struct ruleset *rules, FILE *f );
nkeynes@420: void dump_rulesubset( struct ruleset *rules, int ruleidx[], int rule_count, FILE *f );
nkeynes@359: 
nkeynes@359: struct action {
nkeynes@359:     char operand_names[MAX_OPERANDS][MAX_OPERAND_NAME+1];
nkeynes@359:     char *body;
nkeynes@359: };
nkeynes@359: 
nkeynes@359: struct actionset {
nkeynes@359:     char *pretext;
nkeynes@359:     char *posttext;
nkeynes@359:     char *actions[MAX_RULES];
nkeynes@359: };
nkeynes@359: 
nkeynes@359: struct actionset *parse_action_file( struct ruleset *rules, FILE *f );
nkeynes@359: 
nkeynes@359: int generate_decoder( struct ruleset *rules, struct actionset *actions, FILE *f );
nkeynes@359: 
nkeynes@359: #ifdef __cplusplus
nkeynes@359: }
nkeynes@359: #endif
nkeynes@359: #endif