New simulator changes from Andrew

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);