[binutils-gdb.git] / sim / igen / ChangeLog

2002-03-23  Andrew Cagney  <ac131313@redhat.com>

        * gen.c (format_name_cmp): New function.
        (insn_list_insert): Use the instruction field name as an
        additional key.  Different field names indicate different
        semantics.

2002-03-07  Chris Demetriou  <cgd@broadcom.com>

        * igen.c (print_itrace_format): Add support for a new "%#lx" format.

Tue May 23 21:39:23 2000  Andrew Cagney  <cagney@b1.cygnus.com>

        * configure: Regenerated to track ../common/aclocal.m4 changes.

2000-04-12  Frank Ch. Eigler  <fche@redhat.com>

        * gen-semantics.c (print_semantic_body): Use GPR_CLEAR(N) instead
        of GPR_SET(N,0) for gen-zero-rN.

Thu Sep  2 18:15:53 1999  Andrew Cagney  <cagney@b1.cygnus.com>

        * Makefile.in (SIM_WARNINGS): Replace this with.
        (IGEN_WERROR_CFLAGS, IGEN_WARN_CFLAGS, WERROR_CFLAGS,
        WARN_CFLAGS): With these.
        (BUILD_CFLAGS): Update.

        * configure: Regenerated to track ../common/aclocal.m4 changes.

1999-05-08  Felix Lee  <flee@cygnus.com>

        * configure: Regenerated to track ../common/aclocal.m4 changes.
        
Fri Dec  4 15:14:09 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (main): Fix -Pitable=.

        * gen-engine.c (print_run_body): Prefix instruction_address.

Wed Oct 28 18:12:43 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * Makefile.in (SIM_WARNINGS): Update to match ../common/aclocal.m4
        changes.

Wed Aug 12 10:55:28 1998  Frank Ch. Eigler  <fche@cygnus.com>

        * gen-icache.c (print_icache_extraction): #undef a generated
        symbol before #define'ing it, to remove conflict with system
        macros.

Wed Jul 29 10:07:27 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen.c (gen_entry_expand_opcode): For conditional, fields.  Fix
        the extraction of the value from its source - both table and bit
        cases were wrong.

Tue Jul 28 11:19:43 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.c (parse_insn_word): For constant conditional strings,
        encode their bit value.

        * ld-insn.c (parse_insn_word, parse_insn_words): Allow conditional
        operands to refer to fields in earlier instruction words.

        * gen.c (sub_val): Replace field argument with val_last_pos.
        (gen_entry_expand_opcode): Look in previous tables for a value for
        a conditional field as well as the bits from the current table.
        (insn_list_insert): Add sort key of instructions where
        their operand fields have different conditionals.
        (insn_field_cmp): New function.
        
Sun Apr 26 15:31:55 1998  Tom Tromey  <tromey@creche>

        * configure: Regenerated to track ../common/aclocal.m4 changes.
        * config.in: Ditto.

Sun Apr 26 15:20:08 1998  Tom Tromey  <tromey@cygnus.com>

        * acconfig.h: New file.
        * configure.in: Reverted change of Apr 24; use sinclude again.

Fri Apr 24 14:16:40 1998  Tom Tromey  <tromey@creche>

        * configure: Regenerated to track ../common/aclocal.m4 changes.
        * config.in: Ditto.

Fri Apr 24 11:19:33 1998  Tom Tromey  <tromey@cygnus.com>

        * configure.in: Don't call sinclude.

Fri Apr 24 19:45:00 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-icache.c (print_icache_extraction): Do not type cast
        pointers.
        
        * ld-insn.c (load_insn_table): Terminate error with NL.

        * gen.c (insns_bit_useless): Perform unsigned bit comparisons.

        * filter.c (is_filtered_out, filter_parse): Pacify GCC, len is
        unsigned.

Wed Apr 22 14:27:39 1998  Michael Meissner  <meissner@cygnus.com>

        * configure: Reconfigure to pick up ../common/aclocal.m4 changes
        to suppress inlining by default.

Tue Apr 21 01:37:54 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-icache.c (print_icache_extraction): When generating #define
        force the expression to the correct type.

Thu Apr 16 08:50:29 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * misc.c (name2i): strlen returns an unsigned.

Tue Apr 14 19:04:28 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.h (struct igen_warn_options): Add unimplemented option.
        * igen.c (main): Update

        * ld-insn.c (load_insn_table): Report unimplemented functions.

Tue Apr 14 10:57:26 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.c (parse_insn_word): Treat `!' and `=' as valid
        separator tokens when parsing a conditional.

        * igen.h (main): Add option -S so that suffix can be specified.

Tue Apr 14 08:44:53 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.h (struct igen_trace_options): Add members insn_expansion
        and insn_insertion.

        * igen.c (main): Add options -Gtrace-insn-expansion,
        -Gtrace-insn-insertion and -Gtrace-all.

        * gen.c (gen_entry_expand_insns): Trace each instruction as it is
        selected for expansion.
        (gen_entry_expand_opcode): Trace each expanded instruction as it
        is inserted into the table.
        
Mon Apr 13 19:21:47 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.c (parse_insn_word): Parse conditional operators.
        (parse_insn_word): Verify field conditionals.

        * ld-insn.h: Extend syntax to allow macros and field equality.
        (struct insn_field_cond): Rename insn_field_exclusion, add type.

        * gen.c (gen_entry_expand_opcode): Check type of conditional.
        (insns_bit_useless): Ditto.

        * ld-insn.c (parse_macro_record): New function.

Mon Apr 13 22:37:47 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.h (enum insn_field_type): Add insn_field_invalid.

        * ld-insn.c (parse_insn_word): Check instruction field type
        correctly initialized.
        (print_insn_words): Ditto.
        (insn_field_type_to_str): Ditto.
        (dump_insn_field): Ditto.

        * gen.c (insns_bit_useless): Ditto.

Fri Apr  3 18:08:16 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen.h, igen.c (print_include_inline, print_includes,
        print_includes): New functions.  Generate include list.  For for
        semantics et.al. generate CPP code to inline when
        C_REVEALS_MODULE_P.
        
        * igen.c (gen_semantics_c): Call print_includes.
        * gen-engine.c (gen_engine_c): Ditto.

Sat Apr  4 21:09:11 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.h: (struct _igen_name_option): Replace with struct
        igen_module_option. Contains both module prefix and suffix.
        (INIT_OPTIONS): Initialize.
        
        * igen.c (main): Update -P option to fill in full module info.
        (gen-engine.c, gen-icache.c, gen-itable.c, gen-semantics.c,
        gen-support.c): Update.

Sat Apr  4 02:15:35 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (print_itrace): Use TRACE_ANY_P macro to determine if any
        tracing is needed.

Thu Mar 26 20:51:23 1998  Stu Grossman  <grossman@bhuna.cygnus.co.uk>

        * table.c (table_push):  Redo, using stdio.  Fixes NT native
        problem with <CRLF>=><LF> translation...

Tue Mar 24 23:30:07 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-engine.c (print_run_body): Re-extract the CIA after
        processing any events.

Tue Mar 24 17:46:08 1998  Stu Grossman  <grossman@bhuna.cygnus.co.uk>

        * Makefile.in:  Get SHELL from configure.
        * configure:  Regenerate with autoconf 2.12.1 to fix shell issues for
        NT native builds.

Mon Mar 16 12:51:31 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c: Pass sim_cia to trace_prefix.

Thu Feb 26 19:25:02 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.c (parse_function_record): Check models are valid.
        (parse_function_record): Only discard function when no model is
        common.

Tue Feb 24 01:42:03 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-engine.c (print_run_body): Always wrap generated idecode
        body in ENGINE_ISSUE_PREFIX_HOOK / ENGINE_ISSUE_POSTFIX_HOOK.

Fri Feb 20 16:22:10 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.c (parse_function_record): When -Wnodiscard, suppress
        discarded function warning.

        * igen.c (main): Clarify -Wnodiscard.

        * ld-insn.c (parse_function_record): For functions, allow use of
        instruction style function model records

        * ld-insn.h (nr_function_model_fields): Define.
        
Tue Feb 17 16:36:27 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (print_itrace_prefix): Generate call to trace_prefix
        instead of trace_one_insn.
        (print_itrace): Generate trace_prefix call if any tracing enabled,
        (print_itrace): Nest generated call to trace_generic inside
        conditional for any tracing enabled.
        (print_itrace_prefix): Do not pass PHASE to trace_prefix.

Tue Feb  3 14:00:32 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-engine.c (print_run_body): Add bitsize suffix to IMEM macro.
        * gen-icache.c (print_icache_body): Ditto.
        * gen-idecode.c (print_idecode_ifetch): Ditto.

        * gen-icache.c (print_icache_body): Mark successive instruction
        words as unused.

        * ld-insn.c (parse_insn_word): Only report insn-width problems
        when warning enabled.

        * igen.h: Add flag for warning about invalid instruction widths.
        * igen.c: Parse -Wwidth option.
        
        * gen-support.c (gen_support_h): Map instruction_word onto
        <PREFIX>_instruction_word when needed.
        (print_support_function_name): Use support prefix.
        (gen_support_h): Ditto for <PREFIX>_idecode_issue.
        
Sun Feb  1 11:08:48 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-support.c (gen_support_h): Generate new macro CPU_.

Sat Jan 31 14:50:27 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-engine.c (gen_engine_h): Don't assume a model is present.
        (gen_engine_c): Ditto.

        * igen.c (gen_run_c): Ditto.

        * gen-engine.c (print_run_body): Use CIA_GET & CIA_SET instead of
        CPU_CIA.  Parameterize with CPU argument.
        
Fri Jan 30 09:09:39 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen.h (struct _gen_list): Replace processor with model.

        * igen.c (gen_idecode_h): Update.
        (gen_run_c): For generated switch, use model->full_name.

        * gen.c (print_gen_entry_path): Ditto.
        (make_table):  Ditto.
        (gen_entry_expand_insns):  Ditto.
        (make_gen_tables):  Ditto.

        * igen.c (gen_run_c): Add extra argument `nr_cpus' to generated
        function sim_engine_run.  Pass argument on to engine_run.

        * gen-engine.c (print_engine_run_function_header): Add extra
        argument `nr_cpus' to generated function engine_run.
        (print_run_body): Fix SMP case.

        * gen-support.c (support_c_function): Call sim_engine_abort when
        internal function fails to long jump.

Wed Jan 21 18:00:22 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-semantics.c (print_semantic_body): Use GPR_SET to zero
        hardwired register.

Wed Dec 17 14:49:03 1997  Jeffrey A Law  (law@cygnus.com)

        * gen-semantics.c (print_semantic_body): Fix handling of
        hardwired zero register.

Tue Dec  9 12:45:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.h (struct _igen_gen_options): Add member default_model.

        * igen.c (gen_run_c): Default to the first machine in the
        multi-sim list.
        (main): Add MODEL parameter to gen-multi-sim option.

        * gen.h (function_decl_type): Declare enum.

        * gen-engine.c (print_engine_run_function_header), gen-engine.h:
        Make global, pass function_decl_type as argument.
        (gen_engine_h, gen_engine_c): Update call.

        * gen-idecode.c (print_idecode_issue_function_header),
        gen-idecode.h: Pass function_decl_type as argument.

        * igen.c (gen_idecode_h): For multi-sim, delcare global variable
        idecode_issue.

        * igen.c (gen_run_c): For multi-sim, initialize globals
        idecode_issue and engine_run.

Fri Nov 14 10:51:44 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.c (parse_insn_model_record): Allow multiple model names
        to be specified in a single instruction model record.
        (dump_insn_model_entry): Update.

        * ld-insn.h (struct _insn_model_entry): Replace member name with
        the filter names.  Document syntax change.

Wed Nov 12 15:45:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-engine.c (print_run_body): Add hooks for adding code before
        and after an instruction has been issued.

1997-11-04  Brendan Kehoe  <brendan@lisa.cygnus.com>

        * gen-idecode.c (print_jump_until_stop_body): Use `#if 0' instead of
        `#ifdef 0' around this.

Tue Nov  4 08:18:29 1997  Michael Meissner  <meissner@cygnus.com>

        * ld-decode.c (load_decode_table): Don't assume NULL is an integer
        constant.

Wed Oct 29 13:17:17 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.h: Document mnemonic string format.

Tue Oct 28 10:50:35 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-icache.c (print_icache_extraction): Force result of atol to
        unsigned.

        * ld-insn.c (parse_function_record): Separate handling of old and
        ney fynction records.
        (load_insn_table): For %s record, hack function name & type after
        it has been parsed.

        * filter.h (filter_is_subset): Reverse argument names, wrong
        order.

        * ld-insn.c (load_insn_table): Move include code to.
        (parse_include_record): New function.  Check for filtering of
        include statement by both flags and models.
        (load_insn_table): Check for model filtering of cache and model
        records.
        (parse_model_data_record): Check for model & flag filtering of
        model data records.
        (parse_function_record): Check for model & flag filtering of
        function records.

        * ld-insn.h: Define record_filter_models_field.  Add filter-models
        field to all but instruction records.
        (struct _function_entry, struct _cache_entry): Add models field.
        (nr_function_fields): Make parm field mandatory.

Mon Oct 27 15:14:26 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (main): Change -I option to -I<directory>.  Add optional
        size to -Ggen-icache option.  Add -Gno-... support.
        
        * igen.h (struct _igen_options): Add include field.
        
        * ld-insn.c (enum insn_record_type, insn_type_map): Add
        include_record.
        (load_insn_table): Call table_push when include record.
        
        * table.c (struct _open table, struct table): Make table object an
        indirect ptr to the current table file.
        (current_line, new_table_entry, next_line): Make file arg type
        open_table.
        (table_open): Use table_push.
        (table_read): Point variable file at current table, at eof, pop
        last open table.

        * table.h, table.c (table_push): New function.

Thu Oct 16 11:03:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-semantics.c (print_semantic_body): Use CIA not
        cia.ip. Escape newlines at end of generated call to
        sim_engine_abort.

Tue Oct 14 11:13:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (print_itrace): Output line-ref to igen source file when
        generating trace statements.
        (print_itrace_prefix, print_itrace_format): Escape newline at end
        of each line of generated call to trace function.

Mon Oct 13 11:27:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-support.c (gen_support_h): Generate #define NIA. Definition
        dependant on gen-delayed-branch mode.

        * ld-insn.c (parse_insn_mnemonic_record): Check for opening and
        closing double quote in mnemonic field.
        (parse_option_record): Add gen-delayed-branch option.

Wed Oct  8 13:10:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen.c (insn_list_insert): Missing \n in warning.

        * ld-insn.c (load_insn_table): Only notify of discarded
        instrctions when warn.discard enabled.

        * igen.h: Add option.warn.discard, default enabled.

        * igen.c (main): Add -Wnodiscard option.

        * ld-insn.c (record_type): For old record type, check the number
        of fields is correct.
        (load_insn_table): Allow insn assembler and insn model records to
        appear in any order.
        (parse_insn_model_record): Rename from parse_insn_model_records.
        Parse only one record.
        (parse_insn_mnemonic_record): Rename from
        parse_insn_mnemonic_records.  Parse only one record.

Tue Sep 23 15:52:06 1997  Felix Lee  <flee@yin.cygnus.com>

        * gen-itable.c (gen_itable_h): [nr_itable_* + 1] to avoid
        illegal zero-sized array.
        (itable_print_set): likewise, avoid empty initializers.

Mon Sep 22 18:49:07 1997  Felix Lee  <flee@cygnus.com>

        * configure.in: i386-windows is a cross, so don't expect
        libiberty to be there.
        * configure: updated.
        
Fri Sep 19 10:36:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (print_function_name): Put the format name after the
        function / instruction name, not before.
        (print_itrace): Better format trace code.

Tue Sep 16 11:01:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen.c (insns_bit_useless): Don't treat string fields restricted
        to a range of values as useless.

Mon Sep 15 15:47:21 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (gen_run_c): Handle non-multi-sim case.

        * gen-support.c (gen_support_h): Define SD_ - to replace _SD.
        Define CIA from cia.

Thu Sep 11 10:27:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-semantics.c (print_semantic_body): Trace the instruction
        after it has been validated.
        (print_semantic_body): Count the instruction using sim-profile.
        
Wed Sep 10 13:35:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-itable.c (gen_itable_h): Collect summary info on instruction
        table when traversing it.
        (gen_itable_h): Output an enum defining the max size of each of
        the itable string members.

Tue Sep  9 03:30:26 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (gen_run_c): New function. Generate sim_engine_run that
        looks at the currently selected architecture.

        * gen-engine.c, gen-idecode.c: Add multi-sim support - generate
        one engine per model.
        
        * gen-semantics.c, gen-icache.c gen-support.c:
        Update.

        * ld-insn.h, ld-insn-h (load_insn_table): Rewrite.  table.h only
        returns a line at a time.  Parse multi-word instructions.  Add
        multi-sim support.

        * table.h, table.c: Simplify.  Only parse a single line at a time.
        ld-insn can handle the rest.

        * filter.h, filter.c (filter_parse, filter_add, filter_is_subset,
        filter_is_common, filter_is_member, filter_next): New filter
        operations.
        (dump_filter): Ditto.
        
        * gen.h, gen.c: New file.  Takes the insn table and turns it into
        a set of decode tables and semantic functions.
        
        * ld-insn.c: Copy generator code from here.
        * gen.c: To here.

Fri Aug  8 11:43:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * misc.h (NZALLOC): Allocate an N element array of TYPE.

        * table.h, table.c: Simplify table parser so that it only
        understands colon delimited lines and code blocks.
        (table_read): Parse '{' ... '}' as a code block.
        (table_print_code): New function, print out a code block to file.
        (main): Add suport for standalone testing.
        
        * ld-insn.h, ld-insn.c:
        
        
Mon Sep  1 11:41:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-idecode.c (error_leaf_contains_multiple_insn): Make static.
        (print_jump_definition, print_jump, print_jump_internal_function,
        print_jump_insn, print_jump_until_stop_body): Delete, moved to
        sim-engine.c

        * igen.c (print_itrace_format): Delete unused variable chp.
        (gen-engine.h): Include.

        * table.c (current_file_name, current_line_entry,
        current_line_entry): Make static.

Wed Aug  6 12:31:17 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * configure.in: Define AR_FOR_BUILD, AR_FLAGS_FOR_BUILD,
        RANLIB_FOR_BUILD and CFLAGS_FOR_BUILD.
        * configure.in: Include simulator common/aclocal.m4.
        * configure.in: Add --enable-sim-warnings option.
        * configure: Re-generate.
        
        * Makefile.in: Use.

        * Makefile.in (tmp-filter): New rule.
        (igen.o, tmp-table, tmp-ld-decode, tmp-ld-cache, tmp-ld-insn,
        ld-decode.o, ld-cache.o, ld-insn.o): Fix dependencies.
        
        * gen.h, gen.c: New files.
        
        * Makefile.in (gen.o, tmp-gen): New rules, update all
        dependencies.
        
Tue Jun 24 11:46:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.c (load_insn_table): Accept %s as a function type.

Thu Jun  5 17:14:32 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (print_itrace_prefix): Move printing of insn prefix to
        here.
        (print_itrace_format): Drop printing of MY_NAME in instruction
        trace.  Printing of insn prefix moved.
        (print_itrace): Ditto.

Fri May 30 11:27:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-icache.c (print_icache_function_header): Pass
        table_line_entry instead of separate file and line.

        * table.c (table_entry_read): Set assembler source file/line-nr to
        the current not initial file.
        (table_entry_read): Fix line numbering of source files.

        table.h (table_line_entry): New structure.  Exactly specifies a
        source file/line-nr.
        (table_*_entry): Add this to all.
        
        table.c (table_entry_print_cpp_line_nr): Change to use values from
        a table_line_entry struct.
        (table_entry_read): Save table_line_entry in all structures read.

        gen-icache.c, gen-support.c, gen-idecode.c, gen-semantics.c,
        gen-model.c: Update all references.
        
Thu May 29 10:29:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (print_my_defines): Define MY_NAME - a string.  For
        MY_PREFIX, undefine the name of the function incase some dumb
        header defined it.  it.
        (print_itrace): Use MY_NAME not MY_PREFIX.

        * lf.c (lf_write): New function write an N character buffer to the
        file.

        * igen.c (print_itrace): When available, use the assembler to
        print the insn-trace.
        (print_itrace_prefix): New function, print first part of call to
        print_one_insn.
        (print_itrace_format): New function, print fmt argument for
        print_one_insn.
        
        * table.c (table_entry_read): Save any assembler lines instead of
        discarding them.

Wed May 28 09:55:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-icache.c (print_icache_body): Process immeds.

        * gen-semantics.c (print_semantic_body): When computing NIA, skip
        any immed words that follow the instruction word.

        * ld-insn.c (parse_insn_format): Parse immeds appended to an
        instruction.

        * igen.c (main): Allow any register to be specified as the zero
        register.
        (semantic_zero_reg): Global, index to zero register.

        * gen-semantics.c (print_semantic_body): Zero selected register.

Tue May 27 14:12:32 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.h: Stop options and code gen type bit masks overlaping.

Fri May 23 12:01:08 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-semantics.c (print_semantic_body): Incorrect test for
        zero-r0 code.

Fri May 16 14:32:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-semantics.c (print_semantic_body): Use common sim-engine
        interface.

Fri May 16 11:48:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-semantics.c (print_semantic_body): Add code to clear r0.

        * igen.c (main): Add new option zero-r0, which adds code to clear
        GPR(0) each cycle.

Wed May  7 12:31:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (print_itrace): Fix so line-nr is passed to trace
        function.

        * gen-idecode.c (print_idecode_validate): Correct FP code.

        * gen-support.c (gen_support_h): Always pass MY_INDEX to support
        functions.
        (print_support_function_name): Ditto.

Tue May  6 06:12:04 1997  Mike Meissner  <meissner@cygnus.com>

        * igen.c (print_itrace): Call trace_one_insn to trace
        instructions, rather than doing it directly.

Mon May  5 14:11:46 1997  Mike Meissner  <meissner@cygnus.com>

        * gen-engine.c (engine_switch_leaf): Remove extra %s.
        (print_engine_floating_point_unavailable): Wrap in #ifdef
        UNUSED/#endif, until somebody uses it.

        * gen-idecode.c (error_leaf_contains_multiple_insn): Remove unused
        variable.
        (print_jump_until_stop_body): Wrap in #ifdef UNUSED/#endif, until
        somebody uses it.
        (print_idecode_validate): Use long formats to print long values.

        * gen-semantics.c (print_idecode_invalid): Set name to "unknown"
        if we get an unexpected type.

Fri May  2 13:28:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (print_itrace): Pass SD as well as CPU to calls to
        trace_printf.

        * gen-support.c (gen_support_h): Always pass sim_cia cia to
        support functions.
        (print_support_function_name): Ditto.

Wed Apr 30 17:35:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gen-support.c (support_c_function): Remove unnecessary memset of
        cia.
        * gen-semantics.c (print_semantic_body): Wasn't closing
        generated comment.

Tue Apr 29 11:11:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.c (load_insn_table): Report instructions that do not
        have at least a format and name.
        (insn_table_find_opcode_field): Check progress is being made.

        * gen-support.c (support_c_function): Report empty function body.

Thu Apr 24 11:43:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * ld-insn.c (insn_table_expand_opcode): Allow reserved fields to
        be broken up.
        (insn_table_expand_insns): Allow special rules to apply to groups
        of instructions when all members of the group match the special
        mask/value.

        * gen-semantics.c (print_c_semantic): Ditto.
        * igen.c (print_semantic_function_formal): Ditto.
        (print_semantic_function_type): Ditto.
        * igen.c (print_icache_function_formal): Ditto.
        * gen-idecode.c (print_idecode_issue_function_body): Ditto.

        * gen-idecode.c (gen_idecode_h): Prepend the global_prefix to the
        instruction_address type.

        * gen-semantics.c (print_semantic_body): Call cpu_error when an
        unimplemented instruction is encountered - gives the interpreter
        the chance to stop correctly.

Wed Apr 23 20:06:36 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (print_function_name): Allow dot's in instruction names.

Tue Apr 22 21:46:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * igen.c (main), igen.h: Support new option - delayed-branch -
        generate code to drive a delayed branch processor.

        * gen-idecode.c (gen_idecode_h): Define instruction_address type.

        * igen.c (print_icache_function_formal): Replace address_word with
        instruction_address.
        (print_semantic_function_formal): Ditto.
        (print_semantic_function_type): Ditto.
        * gen-idecode.c (print_idecode_issue_function_body): Ditto.

        * gen-semantics.c (print_semantic_body): Ditto.
        (print_c_semantic): Ditto.

        * gen-support.c (support_c_function): Return a zeroed CIA instead
        of just zero - works with any cia type.

        * igen.c (print_itrace): For delayed branch case, print just the
        current instruction.
        
Thu Apr 17 07:02:33 1997  Doug Evans  <dje@canuck.cygnus.com>

        * igen.c (print_itrace): Use TRACE_FOO_P and trace_printf.

Tue Apr 15 15:20:31 1997  Ian Lance Taylor  <ian@cygnus.com>

        * Makefile.in (INSTALL): Set to @INSTALL@.
        (INSTALL_XFORM, INSTALL_XFORM1): Remove.

Mon Apr 14 16:29:34 1997  Ian Lance Taylor  <ian@cygnus.com>

        * Makefile.in (INSTALL): Change install.sh to install-sh.

Wed Apr  2 18:51:20 1997  Doug Evans  <dje@canuck.cygnus.com>

        * gen-support.c (gen_support_c): sim-state.h renamed to sim-main.h.
        * gen-idecode.c (gen_idecode_c): Likewise.
        * igen.c (gen_semantics_c): Likewise.

Mon Mar 24 10:10:08 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * gen-icache.c (print_icache_body): No longer define cpu/sd,
        support.h now defines CPU/SD globally.

        * gen-model.c (gen_model_h): Ditto.

        * gen-idecode.c (print_idecode_issue_function_body): Ditto.
        (print_jump): Ditto.
        (print_jump_until_stop_body): Ditto.
        (print_idecode_validate): Ditto.

        * gen-icache.c (print_icache_body): Ditto.

        * gen-semantics.c (print_semantic_body): Ditto.

        * igen.c (print_semantic_function_formal): Rename cpu to sim_cpu,
        processor to cpu.
        (print_icache_function_formal): Ditto.

        * gen-support.c (print_support_function_name): Include sd/cpu arg
        in support function argument list.
        (support_c_function): Generate code to cpu/sd from sd/cpu.
        (gen_support_h): Define _SD the argument prefix for all support
        functions.  Define SD/CPU to determine sd/cpu from value of _SD
        macro.

Tue Mar 18 15:52:24 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * gen-support.c (gen_support_c): Update for renaming of engine to
        sim-state.
        
        * igen.c: Ditto.
        * gen-idecode.c (gen_idecode_c): Ditto.

Mon Mar 17 15:17:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * ld-decode.c (load_decode_table): Rename slash to reserved.
        (dump_decode_rule): Ditto.

        * ld-insn.c (parse_insn_format): Differentiate between a `/' -
        reserved bit - and a `*' - wild card.
        (parse_insn_format): Change is_slash to more informative reserved.
        (dump_insn_field): Ditto.
        (insn_field_is_constant): Ditto.
        (insn_table_expand_opcode): Ditto.

        * gen-idecode.c (print_idecode_validate): Make check_mask and
        check_val the correct integer size.
        (print_idecode_validate): Fix reserved bit check for 64 bit
        targets.

Fri Mar 14 11:24:06 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * ld-insn.c (parse_insn_format): Accept '*' as an alternative of
        `/' in bit fields.  `/' denotes a wild bit.

Fri Mar  7 18:20:38 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * igen.h, igen.c (main): New options. Control generation of
        conditional issue and slot verification code.

Fri Mar  7 18:17:25 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * gen-support.c (print_support_function_name): Prepend the global
        name prefix when applicable.  Provide #define to map the user
        specified name the generated globaly unique one.

Fri Mar  7 18:07:45 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * gen-idecode.c (print_idecode_validate): Wrap each of the checks
        - reserved bits, floating point and slot validation - with a
        #ifdef so that they are optional.
        
Fri Mar  7 16:35:13 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * gen-idecode.c (error_leaf_contains_multiple_insn): New function
        - report the error of a leaf node in the decision tree containing
        several instructions.
        (print_idecode_table_leaf): Detect a leaf with multiple instructions.
        (print_idecode_switch_leaf): Ditto.

        * gen-semantics.h, gen-semantics.c (print_idecode_illegal,
        print_idecode_invalid): Rename former to latter.  Add argument so
        that one function can generate all invalid instruction cases -
        illegal, fp-unavailable, wrong-slot.
        * gen-engine.c: Update.

        * gen-idecode.c: Use print_idecode_invalid to generate a function
        call for cases when fp-unavailable and the slot is wrong.

        * gen-idecode.c (print_idecode_validate): New check, generate code
        to verify that the instruction slot is correct.
        
        * igen.c (main): Simplify options.

Wed Mar  5 09:55:55 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * igen.c (print_itrace): Remove source line reference for trace
        code - let the user see the generated file.
        (print_itrace): Print the trace code rather than reference a
        macro.

Tue Mar  4 17:31:55 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * igen.c (print_semantic_function_actual): Pass either the
        processor - smp - or the engine - mono - into semantic functions.
        Don't pass in both.

        * gen-icache.c (print_icache_body): Dependant on smp, derive
        processor from engine or engine from processor, and hence ensuring
        that both are defined in all semantic functions.

Mon Mar  3 17:11:21 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * ld-insn.c (parse_insn_format): Make the width field optional.
        If missing assume that the number of characters in the value
        determines the number of bits in the field.
        
Thu Feb 27 11:27:48 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * ld-insn.c (insn_table_expand_opcode): Replace assertion with
        more useful error message.

Tue Feb 25 16:43:27 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * misc.c (error): Output errors on stderr.

        * ld-insn.c (parse_insn_format): Skip any leading spaces.
        Verify the width of instructions being parsed.

        * table.c (table_entry_read): Parse CPP's convention for
        specifying original file name/line-nr.

Wed Feb 19 12:30:28 1997  Andrew Cagney  <cagney@critters.cygnus.com>

        * ld-insn.c (parse_insn_format): Allow trailing spaces in
        instruction fields.

        * Makefile.in: Create using ../ppc/Makefile.in as a starting
        point.
        * configure.in: Ditto vis ../ppc/configure.in
        
Mon Feb 17 10:44:18 1997  Andrew Cagney  <cagney@critters.cygnus.com>

        * gen-support.c (gen_support_c): Always include engine.h instead
        of cpu.h
        * gen-idecode.c (gen_idecode_c): Ditto.

        * words.h (instruction_word): Remove instruction_word - now
        generated by igen.
        (address_word): New.  Used by igen.
        
        * lf.c (lf_print_function_type_function): New, pass a function to
        print out the type instead of a constant string.
        
        * igen.h, igen.c (print_semantic_function_formal,
        SEMANTIC_FUNCTION_FORMAL): Relace macro with function.
        (print_semantic_function_actual, SEMANTIC_FUNCTION_ACTUAL): Ditto.
        (print_semantic_function_type, SEMANTIC_FUNCTION_TYPE): Ditto.
        (print_icache_function_type, ICACHE_FUNCTION_TYPE): Ditto.
        (print_icache_function_formal, ICACHE_FUNCTION_FORMAL): Ditto.
        (print_icache_function_actual, ICACHE_FUNCTION_ACTUAL): Ditto.
        * gen-idecode.c (print_idecode_table): Update.
        (idecode_switch_leaf): Update.
        (print_idecode_switch_function_header): Ditto.
        (print_idecode_floating_point_unavailable): Ditto.
        (print_idecode_issue_function_header): Ditto.
        * igen.c (gen_icache_h): Ditto.
        * gen-engine.c (print_engine_table): Ditto.
        (engine_switch_leaf): Ditto.
        * gen-support.c (print_support_function_name): Ditto.
        * gen-semantics.c (print_semantic_function_header): Update.
        Update.
        * gen-icache.c (print_icache_function_header): Update.
        (print_icache_function): Update.
        (print_icache_internal_function_declaration): Update.
        (print_icache_internal_function_definition): Update.

        * gen-idecode.c (gen_idecode_h): Drop including of idecode_*.h
        files, will at some stage need to move it into support.

        * igen.h, igen.c (main): New option -e <engine> - generate a full
        simulation engine.  Previously this was the -d <idecode-file>
        option.
        * gen-engine.h, gen-engine.c: Copies of gen-idecode.*.  Will need
        to clean these up so that that call upon the updated gen-idecode
        code.
        
        * gen-idecode.h, gen-idecode.c: Prune out any code not relevant to
        generating a decode table.
        
        * Makefile.in (igen): Add dependencies for new gen-engine.* files.

        * igen.h, igen.c (main): New option -M - Control what is returned
        by semantic functions - -1/NIA vs CIA+N/NIA.  Add
        generate_semantic_returning_modified_nia_only to igen_code enum.
        * gen-semantics.c (print_semantic_body): As an alternative, make
        NIA == -1 instead of CIA+insn_size by default.
        
        * igen.h, igen.c (main, global_name_prefix, global_uname_prefix):
        New option -P <prefix> - Prepend all generated functions with the
        specified prefix.
        (gen_idecode_c): Adjust.
        * gen-icache.c (print_icache_struct): Ditto.
        * gen-support.c (gen_support_c): Ditto.

Sun Feb 16 15:23:15 1997  Andrew Cagney  <cagney@critters.cygnus.com>

        * igen.c (main): Correct usage. Missleading message about ucase
        options dumping internal tables.  -F now includes rather then
        excludes instructions.

        * misc.h, misc.c (a2i): Make 64bit.

        * ld-insn.h (max_insn_bit_size, default_insn_bit_size): Increase
        max to 64bits, expect trouble.  Make the default 32 bits.
        * gen-idecode.c (print_idecode_table): Change EXTRACTED*
        et.al. macro's to use the insn_bit_size instead of assuming 32
        bits.
        * gen-icache.c (print_icache_extraction): Ditto.
        * gen-idecode.c (idecode_switch_start): Ditto.
        * gen-idecode.c (gen_idecode_c): Ditto

        * igen.h (insn_specifying_widths), igen.c (main): New option -W.
        Indicates that the instruction field of the table is specifying
        bit widths instead of bit offsets.
        * ld-insn.c (parse_insn_format): Parse instruction fields
        specifying widths.

        * misc.c (a2i): Allow binary numbers to be specified using the
        syntax 0bNNNN.
        * ld-insn.c: Allow such numbers to appear in the instruction
        format.

        * table.c (table_entry_read): Make // a valid comment character.
        (table_entry_read): Skip lines containing a leading " - these may
        eventually be used in a disasembler.

Fri Feb 14 15:23:15 1997  Andrew Cagney  <cagney@critters.cygnus.com>

        * filter.c, filter.h, gen-engine.c, gen-engine.h, gen-icache.c,
        gen-icache.h, gen-idecode.c, gen-idecode.h, gen-itable.c,
        gen-itable.h, gen-model.c, gen-model.h, gen-semantics.c,
        gen-semantics.h, gen-support.c, gen-support.h, igen.c, igen.h,
        ld-cache.c, ld-cache.h, ld-decode.c, ld-decode.h, ld-insn.c,
        ld-insn.h, lf.c, lf.h, misc.c, misc.h, table.c, table.h: Copy in
        from the ../ppc directory.

        * filter_host.c, filter_host.h: Copy in from the ../ppc directory
        renaming from filter_filename.[hc]