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Diffstat (limited to 'sim/ppc/ld-insn.h')
| -rw-r--r-- | sim/ppc/ld-insn.h | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/sim/ppc/ld-insn.h b/sim/ppc/ld-insn.h new file mode 100644 index 0000000..e800f0d --- /dev/null +++ b/sim/ppc/ld-insn.h @@ -0,0 +1,281 @@ +/* This file is part of the program psim. + + Copyright (C) 1994,1995,1996, Andrew Cagney <cagney@highland.com.au> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + */ + +/* +# -- +# +# +# Fields: +# +# 1 Instruction format as a `start-bit,content' pairs. +# the content is one of a digit, field name or `/' (aka.0) +# +# 2 Format specifier +# +# 3 Flags: 64 - 64bit only +# f - floating point enabled required +# +# 4 short name +# +# 5 Description +# +# +# For flags marked 'model', the fields are interpreted as follows: +# +# 1 Not used +# +# 2 Not used +# +# 3 "macro" +# +# 4 String name for model +# +# 5 Specific CPU model, must be an identifier +# +# 6 Comma separated list of functional units + +*/ + + +/* Global constants */ + +enum { + max_insn_bit_size = 32, +}; + + +typedef struct _insn_field insn_field; +struct _insn_field { + int first; + int last; + int width; + int is_int; + int is_slash; + int is_string; + int val_int; + char *pos_string; + char *val_string; + insn_field *next; + insn_field *prev; +}; + +typedef struct _insn_fields insn_fields; +struct _insn_fields { + insn_field *bits[max_insn_bit_size]; + insn_field *first; + insn_field *last; + unsigned value; +}; + + +/****************************************************************/ + +typedef struct _opcode_field opcode_field; +struct _opcode_field { + int first; + int last; + int is_boolean; + unsigned boolean_constant; + opcode_field *parent; +}; + + +/****************************************************************/ + +typedef struct _insn_bits insn_bits; +struct _insn_bits { + int is_expanded; + int value; + insn_field *field; + opcode_field *opcode; + insn_bits *last; +}; + + +/****************************************************************/ + + +typedef enum { + insn_format, + insn_form, + insn_flags, + insn_mnemonic, + insn_name, + insn_comment, + nr_insn_table_fields +} insn_table_fields; + +typedef enum { + function_type = insn_format, + function_name = insn_name, + function_param = insn_comment +} function_table_fields; + +typedef enum { + model_name = insn_mnemonic, + model_identifer = insn_name, + model_default = insn_comment, +} model_table_fields; + +typedef struct _insn insn; +struct _insn { + table_entry *file_entry; + insn_fields *fields; + insn *next; +}; + +typedef struct _insn_undef insn_undef; +struct _insn_undef { + insn_undef *next; + char *name; +}; + +typedef struct _model model; +struct _model { + model *next; + char *name; + char *printable_name; + char *insn_default; + table_model_entry *func_unit_start; + table_model_entry *func_unit_end; +}; + +typedef struct _insn_table insn_table; +struct _insn_table { + int opcode_nr; + insn_bits *expanded_bits; + int nr_insn; + insn *insns; + insn *functions; + insn *last_function; + decode_table *opcode_rule; + opcode_field *opcode; + int nr_entries; + insn_table *entries; + insn_table *sibling; + insn_table *parent; +}; + +typedef enum { + insn_model_name, + insn_model_fields, + nr_insn_model_table_fields +} insn_model_table_fields; + + +extern insn_table *load_insn_table +(const char *file_name, + decode_table *decode_rules, + filter *filters); + +model *models; +model *last_model; + +insn *model_macros; +insn *last_model_macro; + +insn *model_functions; +insn *last_model_function; + +insn *model_internal; +insn *last_model_internal; + +insn *model_static; +insn *last_model_static; + +insn *model_data; +insn *last_model_data; + +int max_model_fields_len; + +extern void insn_table_insert_insn +(insn_table *table, + table_entry *file_entry, + insn_fields *fields); + + +/****************************************************************/ + +/****************************************************************/ + +typedef void leaf_handler +(insn_table *entry, + lf *file, + void *data, + int depth); + +typedef void insn_handler +(insn_table *table, + lf *file, + void *data, + insn *instruction, + int depth); + +typedef void padding_handler +(insn_table *table, + lf *file, + void *data, + int depth, + int opcode_nr); + + +extern void insn_table_traverse_tree +(insn_table *table, + lf *file, + void *data, + int depth, + leaf_handler *start, + insn_handler *handler, + leaf_handler *end, + padding_handler *padding); + + +extern void insn_table_traverse_insn +(insn_table *table, + lf *file, + void *data, + insn_handler *handler); + + + +/****************************************************************/ + +typedef void function_handler +(insn_table *table, + lf *file, + void *data, + table_entry *function); + +extern void +insn_table_traverse_function +(insn_table *table, + lf *file, + void *data, + function_handler *leaf); + +/****************************************************************/ + + + +extern void insn_table_expand_insns +(insn_table *table); + +extern int insn_table_depth +(insn_table *table); |