(PAREXEC): Renamed from PARALLEL_EXEC. All uses updated.

[deliverable/binutils-gdb.git] / sim / common / ChangeLog

Mon Feb  9 14:48:37 1998  Doug Evans  <devans@canuck.cygnus.com>

        * cgen-sim.h (DECODE): Always use switch for `read' for now.
        (PAREXEC): Renamed from PARALLEL_EXEC.  All uses updated.
        (SEMANTIC{,_CACHE}_FN): Fix return type.
        * cgen.sh (decode): Add s/@arch@/$arch/.
        * genmloop.sh (@cpu@_engine_run): Delete `current_state'.
        (engine_resume): Likewise.  Make `engine' volatile.  Save copy
        of cpu pointer in volatile object.  Initialize read switch if
        -parallel.

Thu Feb  5 13:27:04 1998  Doug Evans  <devans@seba.cygnus.com>

        * cgen-sim.h (EX_FN_NAME): _exc_ -> _ex_.
        (SEM_INSN): New macro.

Tue Feb  3 16:31:56 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-run.c (sim_engine_run): Assume IMEM is 32 bit.

Sun Feb  1 16:47:51 1998  Andrew Cagney  <cagney@b1.cygnus.com>

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

Sun Feb  1 16:16:57 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-types.h (fp_word): New type, define according to
        WITH_TARGET_FLOATING_POINT_BITSIZE.

        * aclocal.m4 (default_sim_floating_point_bitsize): Add
        configuration of size of floating point registers.

Sun Feb  1 14:02:31 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-profile.c (profile_print): Only print CPU <N> if other
        output is going to appear.

Sat Jan 31 18:15:41 1998  Andrew Cagney  <cagney@b1.cygnus.com>

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

Sat Jan 31 18:03:55 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-types.h (address_word): Typedef according to
        WITH_TARGET_ADDRESS_BITSIZE.
        (signed_cell, unsigned_cell, natural_cell): Ditto using
        WITH_TARGET_CELL_BITSIZE.
        
        * sim-config.h (WITH_TARGET_ADDRESS_BITSIZE): Define.
        (WITH_TARGET_CELL_BITSIZE): Define.
        (WITH_HOST_WORD_BITSIZE): Delete.

        * sim-config.c (print_sim_config): Update.

        * aclocal.m4 (SIM_AC_OPTION_BITSIZE): Add support for
        configuration of address and OpenFirmware cell sizes.

Fri Jan 30 09:36:33 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-engine.h (sim_engine_run): Add argument nr_cpus.
        * sim-run.c (sim_engine_run): Update.
        
        * sim-engine.h (SIM_ENGINE_HALT_HOOK): Use SET_CPU_CIA instead of
        CPU_CIA.
        * sim-run.c (sim_engine_run): Ditto.

        * sim-resume.c (sim_resume): Obtain nr_cpus from sim_engine.
        (sim_resume): Pass nr_cpus to sim_engine_run.

        * sim-engine.h (struct _sim_engine): Add member nr_cpus.
        
        * sim-engine.c (sim_engine_init): Hardwire nr_cpus to
        MAX_NR_PROCESSORS.
        (sim_engine_nr_cpus) sim-engine.c, sim-engine.h: New function
        
Thu Jan 29 12:13:01 1998  Doug Evans  <devans@canuck.cygnus.com>

        * cgen.sh: Portably read parms past $9.

Fri Jan 23 14:20:54 1998  Doug Evans  <devans@seba.cygnus.com>

        * Make-common.in (stamp-tvals): New rule.
        (targ-vals.h,targ-map.c): Depend on it.
        (clean): Remove stamp-tvals.

Tue Jan 20 21:35:13 1998  Michael Meissner  <meissner@cygnus.com>

        * sim-utils.c (sim_state_alloc): #if 0 variable that is only used
        in code also #if 0'ed.

Mon Jan 19 22:26:29 1998  Doug Evans  <devans@seba>

        * configure: Regenerated to track ../common/aclocal.m4 changes.
        * aclocal.m4: Recognize --enable-maintainer-mode.

Mon Jan 19 12:45:45 1998  Doug Evans  <devans@seba.cygnus.com>

start-sanitize-cygnus
        * Make-common.in (cgen-{arch,cpu,decode}): New targets.
        * cgen.sh: New file.
end-sanitize-cygnus
        * cgen-scache.h: Deleted.
        * Make-common.in (cgen-run.o,cgen-scache.o): Delete cgen-scache.h dep.
        (CGEN_CPU_SCM): Add sim-model.scm.
        * cgen-scache.c: Only compile contents if WITH_SCACHE.
        (scache_init): Use runtime computed size of SCACHE.
        (scache_flush): Likewise.
        * cgen-mem.h (GETIMEMU[QHSD]I): Declare.
        ([GS]ETT{QI,UQI,HI,UHI,SI,USI,DI,UDI}): Declare.
        * cgen-sim.h: Scache support moved here.
        (PC): Redo definition.
        (ARGBUF,SCACHE,PARALLEL_EXEC): Provide forward decls.
        (DECODE): Add parallel execution support.
        Only include semantic label members if using switch.
        (SWITCH,CASE,BREAK,DEFAULT,ENDSWITCH): Portable computed goto support.
        (CGEN_CPU): Delete members exec_state, halt_sigrc, halt_jmp_buf.
        (IADDR,CIA,SEM_ARG,EX_FN_NAME,SEM_FN_NAME,RECORD_IADDR,SEM_ARGBUF,
        SEM_NEXT_PC,SEM_BRANCH_VIA_{CACHE,ADDR},SEM_NEW_PC_ADDR): Moved here
        from cgen-types.h.
        (engine_{stop,run,resume,halt,signal}): Delete decls.
        * cgen-types.h (CGEN_{XCAT3,CAT3}): Delete.
        (argbuf,scache): Delete forward decls.
        (STATE): Delete decl.
        * cgen-utils.c: Don't include decode.h, mem-ops.h, sem-ops.h.
        Include cgen-mem.h, cgen-ops.h.
        (engine_halt,engine_signal): Delete.
        ({ex,exc,sem,semc}_illegal): Delete.
        (sim_disassemble_insn): Result of extract fn is in bits.
        * genmloop.sh: Rewrite.

        * cgen-trace.c (trace_insn): Set printed_result_p=0 if not tracing
        line numbers.

        * sim-base.h (sim_state_base): Delete member `model'.
        (sim_cpu_base): Add member `model'.
        * sim-model.h (IMP_PROPERTIES): New type.
        (MACH): New members imp_props, models.
        (models): Delete decl.
        * sim-model.c (set_model): Update.
        * sim-profile.c (profile_print_model): Update.

        * sim-utils.c (sim_state_alloc): Delete setting of cpu backlink here.

Fri Jan 16 12:33:09 1998  Nick Clifton  <nickc@cygnus.com>

        * cgen-trace.c (trace_insn): Call CGEN_INSN_MNEMONIC() rather than
        CGEN_INSN_SYNTAX().

Mon Dec 15 23:17:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>

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

Mon Dec 15 23:16:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * aclocal.m4 (AR): Check for sigaction.

Thu Dec  4 09:21:05 1997  Doug Evans  <devans@canuck.cygnus.com>

        * Make-common.in (sim-core.o): Depend on $(sim_main_headers).

        * sim-config.h (WITH_TREE_PROPERTIES): Define as 0.
        * sim-config.c (sim_config): Replace WITH_DEVICES with
        WITH_TREE_PROPERTIES.

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

Wed Dec  3 17:56:02 1997  Doug Evans  <devans@canuck.cygnus.com>

        * Make-common.in (SIM_ENVIRONMENT): New variable.
        (CONFIG_CFLAGS): Add it.
        * aclocal.m4 (SIM_AC_OPTION_ENVIRONMENT): Handle
        --enable-sim-environment option.
        * configure: Regenerated.
        * sim-config.h (environment support): Rewrite.
        * sim-config.c (current_environment): Define as enum, unconditionally.
        (current_alignment): Define unconditionally.
        (config_environment_to_a): Update.
        (config_alignment_to_a): Fix type of argument.  Define unconditionally.
        (sim_config): Handle environment and alignment determination
        unconditionally.  Delete sanity checks of current_environment,
        unnecessary.
        (print_sim_config): Update.
        * sim-options.c (STANDARD_OPTIONS enum): Add OPTION_ENVIRONMENT.
        (standard_options): Add --environment.
        (standard_option_handler): Likewise.

Fri Nov 28 12:21:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-alu.h: Add notes on carry vs borrow for subtraction.
        (ALU{,8,16,32,64}ADD): Redefine ADD macro as add overflowing.
        (ALU{,8,16,32,64}ADDC): Define - add carrying.
        (ALU{,8,16,32,64}SUB): Redefine SUB macro as subtract overflowing.
        (ALU{,8,16,32,64}SUBB): Define - subtract borrowing.
        (ALU{,8,16,32,64}SUBC): Define - tract carrying.
        (ALU{,8,16,32,64}ADD_CA, ALU{,8,16,32,64}ADDC_C): Replace single
        argument ADD_CA macro with two argument ADDC_C - add carrying with
        carry in.
        (ALU{,8,16,32,64}SUB_CA, ALU{,8,16,32,64}SUBC_X): Replace single
        argument SUB_CA macro with two argument SUBC_X - subtract
        carrying, extended.
        (ALU{,8,16,32,64}SUBB_B): Define - subtract borrowing with
        borrow-in.
        (ALU{,8,16,32,64}NEGC, ALU{,8,16,32,64}NEGB): Define.

Sun Nov 30 17:40:57 1997  Michael Meissner  <meissner@cygnus.com>

        * sim-io.c (sim_io_{syscalls,getstring}): Delete.  No longer used.
        * sim-io.h (sim_io_syscalls): Delete.

Fri Nov 28 20:10:09 1997  Michael Meissner  <meissner@cygnus.com>

        * syscall.c (cb_syscall): Add missing else, so write to stdout
        isn't doubled.

        * sim-alu.h (ALU{,8,16,32,64}_SET_CARRY): Provide macros to import
        the carry bit from the CPU's psw.

Fri Nov 28 11:15:05 1997  Doug Evans  <devans@canuck.cygnus.com>

        * gennltvals.sh: Redo syscall support.
        * nltvals.def: Regenerated.

Wed Nov 26 16:49:38 1997  Michael Meissner  <meissner@cygnus.com>

        * syscall.c (cb_syscall): If writing to stdout or stderr, flush
        the stream immediately.

Wed Nov 26 12:32:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-io.c (sim_io_getstring): Delete unused len2.
        (sim_io_syscalls): Ditto for sys_errno.

Wed Nov 26 11:18:40 1997  Doug Evans  <devans@canuck.cygnus.com>

        * syscall.c (cb_syscall): Test CB_SYSCALL struct magic number.

        * Make-common.in (run.o): Depend on remote-sim.h.
        (nrun.o,sim-hload.o,sim-hrw.o): Likewise.
        (sim-io.o,sim-reason.o,sim-resume.o): Likewise.

Tue Nov 25 20:12:46 1997  Michael Meissner  <meissner@cygnus.com>

        * sim-io.c (sim_io_syscalls): Disable lseek.

Tue Nov 25 00:12:38 1997  Doug Evans  <devans@seba.cygnus.com>

start-sanitize-d30v
        * gennltvals.sh: Generate syscall values for d30v.
end-sanitize-d30v
        * gennltvals.sh: Use libgloss/syscall.h for sparc.
        * nltvals.def: Regenerate.

        * callback.c (os_stat): Make 3rd arg a host struct stat ptr.
        (os_fstat): Likewise.  Validate fd argument.
        (cb_host_to_target_stat): Delete big_p arg.  If HS arg is NULL,
        just compute target stat struct length.
        * syscall.c: #include "libiberty.h", <sys/types.h>, <sys/stat.h>.
        (ENOSYS,ENAMETOOLONG): Provide definitions if missing.
        (get_string): Return host errno values so they can be properly
        translated later.
        (cb_syscall): Likewise.
        (cb_syscall, cases open,unlink): Use get_path instead of get_string.
        (cb_syscall, case read): Use read_stdin for file descriptor 0.
        (cb_syscall, case write): Use write_stderr for file descriptor 2.
        (cb_syscall): Add cases for lseek, unlink, stat, fstat, time.
        (get_path): New function.

Mon Nov 24 18:56:07 1997  Michael Meissner  <meissner@cygnus.com>

        * sim-io.c (sim_io_syscalls): New function to provide system call
        emulation.  Provide exit, open, close, read, write, lseek, and
        unlink.
        (sim_io_getstring): New function to return a string from a
        simulated memory location.

        * sim-io.h (sim_io_syscalls): Add declaration.

Mon Nov 24 12:09:59 1997  Doug Evans  <devans@seba.cygnus.com>

        * sim-core.c (sim_core_signal): Fix spelling error in message.

        * sim-hrw.c (sim_read): Use read map, not write map.

        * Make-common.in (all): Add .gdbinit.
        * gdbinit.in: Add dump command.

        * sim-model.c (model_options): Use '\0' for `shortopt'.

        * sim-trace.c (trace_option_handler): Set state trace file
        for --trace-file in addition to cpu's values.
        (trace_vprintf): If cpu == NULL, try state's trace file.
        (trace_options): Reorganize table, reword some descriptions.

Sun Nov 23 10:57:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-fpu.c (sim_fpu_abs, sim_fpu_neg, sim_fpu_inv), sim-fpu.h:
        New functions.

Sat Nov 22 19:16:54 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-reason.c (sim_stop_reason): For sim_signalled, return the
        signal untranslated, document problem with this.

        * nrun.c (main): Check for a prog name of `*step'.  If present,
        step the simulator instead of allowing it to run free.

        * sim-signal.c (SIGQUIT): Define on _MSC_VER hosts.

        * Make-common.in (sim_main_headers): Add sim-signal.h.

Fri Nov 21 09:32:32 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-signal.c (sim_signal_to_host): Return 0 for SIM_SIGNONE.

Thu Nov 20 20:35:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-signal.h: Start simulator signals at 64 so that host signal
        numbers can be detected and reported.

        * sim-signal.h (SIM_SIGFPE), sim-signal.h: Add signal.

Wed Nov 19 12:02:41 1997  Doug Evans  <devans@seba.cygnus.com>

        * callback.c (cb_host_to_target_stat): Fix return values.

        * cgen-sim.h (enum_signal_type): Delete.
        (engine_signal): Update prototype.
        * cgen-utils.c: Don't include <signal.h>.
        (sim_signal_to_host): Delete, lives in sim-signal.c now.
        (engine_signal): Update.

        * sim-utils.c (sim_state_alloc): Call SIM_STATE_ALLOC if defined.
        (sim_state_free): Call SIM_STATE_FREE if defined.

        * sim-module.c (sim_module_install): Don't leave any modules
        installed if one fails to install.

Wed Nov 19 13:25:48 1997  Michael Meissner  <meissner@cygnus.com>

        * sim-options.c: Don't include ../libiberty/alloca-conf.h any
        more, since alloca is not used in this file.

        * sim-alu.h (ALU{32,64}_*): Rewrite 32 and 64 bit ALU support to
        correctly set the carry and overflow bits for those types.
        (ALU{8,16,32,64}_{ADD,SUB}_CA): Take VAL argument to add along
        with carry, so carry is correct after doing both adds.
        (ALU*): Space out '\' to make it easier to read.

Tue Nov 18 15:53:45 1997  Doug Evans  <devans@canuck.cygnus.com>

        * sim-core.c (sim_core_signal): Use sim_stopped instead of
        sim_signalled.

        * sim-signal.c, sim-signal.h: New files.
        * Make-common.in (sim-signal.o): Add rule for.
        (SIM_NEW_COMMON_OBJS): Add sim-signal.o.
        * sim-abort.c: Don't include <signal.h>.
        * sim-basics.h: #include "sim-signal.h".
        * sim-break.c: Don't include <signal.h>.
        (sim_handle_breakpoint): Replace SIGTRAP with SIM_SIGTRAP.
        * sim-core.c: Don't include <signal.h>.
        (SIGBUS): Delete definition.
        (sim_core_signal): Replace SIGSEGV,SIGBUS with SIM_SIGSEGV,SIM_SIGBUS.
        * sim-engine.c: Don't include <signal.h>.
        (sim_engine_abort): Replace SIGABRT with SIM_SIGABRT.
        * sim-reason.c (sim_stop_reason): Call sim_signal_to_host.
        * sim-resume.c: Don't include <signal.h>.
        (SIGTRAP): Delete definition.
        (has_stepped): Replace SIGTRAP with SIM_SIGTRAP.
        * sim-stop.c: Don't include <signal.h>.
        (control_c_simulation): Replace SIGINT with SIM_SIGINT.
        * sim-watch.c: Don't include <signal.h>.
        (handle_watchpoint): Replace SIGINT with SIM_SIGINT.

        * Make-common.in (SIM_NEW_COMMON_OBJS): New variable.

        * sim-base.h (CIA_ADDR): Provide default definition.
        * sim-core.c (sim_core_signal): Use CIA_ADDR to fetch value.
        * sim-break.c (sim_handle_breakpoint): Likewise.

Mon Nov 17 14:15:31 1997  Doug Evans  <devans@seba.cygnus.com>

        * Make-common.in (srccom): New variable.

        * Make-common.in (DEP, COMMON_DEP_CFLAGS): Define.
        (LIB_OBJS): Add syscall.o.
        (gentmap): Pass $(NL_TARGET) to $(CC).
        (syscall.o): Add rule for.
        (sim_main_headers): Add $(SIM_EXTRA_DEPS).
        (sim-bits.o): Depend on $(sim-n-bits_h).
        (sim-load.o): Depend on callback.h.

        * Make-common.in (cgen-*.o): Update dependencies, mem-ops.h renamed to
        cgen-mem.h, sem-ops.h renamed to cgen-ops.h.
        * cgen-mem.h, cgen-ops.h: New files.

        * aclocal.m4 (--enable-sim-scache): Pass -DWITH_SCACHE=0 for "=no".

        * Makefile.in (nltvals.def): Depend on gennltvals.sh.
        Rewrite build rule.
        * callback.c: #include string.h or strings.h.
        #include sys/types.h and sys/stat.h.
        (cb_init_syscall_map,cb_init_errno_map,cb_init_open_map): Declare.
        (os_get_errno,os_open): Update.
        (os_stat,os_fstat): New functions.
        (os_init): Initialize syscall_map, errno_map, open_map.
        (default_callback): Add entries for os_stat, os_fstat, syscall_map,
        errno_map, open_map, signal_map, stat_map.
        (cb_read_target_syscall_maps): New function.
        (cb_target_to_host_syscall): New function.
        (cb_host_to_target_errno): Renamed from host_to_target_errno.
        (cb_target_to_host_open): Renamed from target_to_host_open.
        (store): New function.
        (cb_host_to_target_stat): New function.
        * syscall.c: New file.
        * gentmap.c (sys_tdefs): New global.
        (gen_targ_vals_h): Output target syscall numbers.
        (gen_targ_map_c): Update.  Output target syscall translation map.
        * gentvals.sh: New first argument `target'.  Preface table with
        #ifdef NL_TARGET_$target if non-null target passed.
        * gennltvals.sh: New file.
        * nltvals.def: Regenerated.

Fri Nov 14 11:33:34 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-n-core.h (sim_core_read_unaligned_N): Return static
        sim_core_dummy_M.
        (sim_core_dummy_M): Declare.
        
Wed Nov 12 18:16:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-core.c (sim_core_signal): Print the address of the
        instruction.

Thu Nov 13 11:49:41 1997  Doug Evans  <devans@seba.cygnus.com>

        * sim-base.h (sim_state_base): Move `magic' to end of struct.

        * sim-base.h (sim_state_base): Add member trace_data.
        (STATE_TRACE_DATA): New macro.
        * sim-trace.h (TRACE_DEBUG_IDX,TRACE_debug): New macros.
        ({WITH_,}TRACE_DEBUG_P): New macros.
        (STATE_TRACE_FLAGS,STRACE_P,STRACE_DEBUG_P): New macros.
        (_sim_cpu): Delete forward reference.
        (debug_printf): Update.
        * sim-trace.c (OPTION_TRACE_DEBUG): Define.
        (trace_options): Add --trace-debug.
        (set_trace_options): Handle it.
        (trace_option_handler): Likewise.
        (trace_install): Init state trace_data struct.
        (trace_uninstall): Close state trace file.
        * sim-events.c (ETRACE): Only print source file and line number if
        --trace-debug.
        * sim-n-core.h (sim_core_trace_M): Likewise.

        * sim-core.c (sim_core_signal): Add missing "\n" in message.

1997-11-13  Felix Lee  <flee@cygnus.com>

        * sim-n-core.h (sim_core_read_unaligned_N): illegal empty
        initializer.
        * sim-types.h (unsigned128,signed128): fix typo for MSVC.

Wed Nov 12 12:18:08 1997  Doug Evans  <devans@canuck.cygnus.com>

        * aclocal.m4 (SIM_AC_OPTION_SCACHE): Fix typo.

        * Make-common.in (BUILT_SRC_FROM_COMMON): Remove files no longer
        built this way.
        (sim-config.o): Remove non-existent $(sim-nconfig_h) dependency.
        (clean): Don't delete $(BUILT_SRC_FROM_COMMON) if building in
        source tree.

Tue Nov 11 13:28:02 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-events.c (sim_events_process): Re-compute the time -
        update_time_from_event - as each event is processed. Reverses
        previous change.

Fri Nov  7 00:37:36 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * callback.c (os_poll_quit): Replace _WIN32 with _MSC_VER.

Fri Nov  7 00:37:36 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-events.c (sim_events_process): Delete redundant call to
        update_time_from_event.
        (sim_events_slip): Always decrement time_from_event.
        (sim_events_tick, sim_events_deschedule, update_time_from_event):
        Delete assertion that time_from_event >=0 when work in queue, no
        longer applicable.

Thu Nov  6 12:06:46 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-options.c (STANDARD_OPTIONS): Change OPTION_* to an enum.
        (standard_option_handler): Update.

        * sim-options.h: Clarify documentation.
        (OPTION_LONG_ONLY_P): Delete definition.
        (OPTION_VALID_P): Define.
        
        * sim-options.c (sim_print_help): Allow short only options.
        (sim_parse_args): Ditto.
        (sim_args_command): Skip short only options.
        (sim_parse_args): Allocate space for NUM_OPTS not just 256. Make
        separate entries for short and long options in the HANDLERS and
        ORIG_VAL tables.
        (sim_parse_args): Disable argument permutation.

Wed Nov  5 13:40:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-core.h (DECLARE_SIM_CORE_WRITE_N. DECLARE_SIM_CORE_READ_N):
        Add argument M, size of data type.
        (sim_core_read_misaligned_3, sim_core_write_misaligned_3):
        Declare, ditto for 5, 6 & 7 byte transfers.
        (sim_core_write_unaligned_1, sim_core_write_unaligned_1): Define
        as aligned variant.
        
        * sim-n-core.h (sim_core_trace_M): Rename from
        sim_core_trace_N. Add nr_bytes argument. Replace transfer argument
        with transfer type. Print transfer direction.  Handle 1 and 2 byte
        transfers.
        (sim_core_read_unaligned_N, sim_core_write_unaligned_N): Trace
        unaligned accesses.
        (unsigned_M, T2H_M, H2T_M): Rename from unsigned_N, T2H_N, H2T_N.
        Update all functions.

        * sim-core.c: Generate functions starting with 16 not 1.
        (sim_core_read_unaligned_3): Generate. Ditto for 3 byte write and
        all 5, 6 & 7 byte transfers.

        * sim-n-core.h (sim_core_read_misaligned_N,
        sim_core_write_misaligned_N): Implement.

Mon Nov  3 15:03:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-endian.h (U16_8): Implement

        * sim-endian.c (sim_endian_split_16, sim_endian_join_16): New functions

        * sim-endian.h (VL8_16, VH8_16): Implement.

        * sim-memopt.c (memory_option_handler): Typecast 64bit value to
        long in printf.
        (memory_option_handler): Only zalloc modulo bytes when non-zero.
        (memory_option_handler): Skip comma in alias address list

Fri Oct 31 13:03:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-memopt.c (do_memopt_add, do_memopt_delete): Add level and
        space params.
        (parse_size, parse_addr): New functions
        (memory_option_handler, memory_options): Parse address & size
        using new functions. Pass level, space, modulo to do_memopt_add &
        do_memopt_del.

        * sim-memopt.h (struct _sim_memopt): Add level & space fields.

        * sim-core.h (sim_core_arrach, sim_core_detach): Replace
        `attach_type attach' argument with `unsigned level' argument.
        Document.

        * sim-core.c (new_sim_core_mapping, sim_core_map_attach,
        sim_core_attach): Replace argument attach with level.  Update
        verification of arguments.
        (sim_core_map_detach, sim_core_detach): Replace argument attach
        with level.

        * sim-basics.h (enum _attach_type): Delete.

Thu Oct 30 13:45:00 1997  Doug Evans  <devans@seba.cygnus.com>

        * sim-core.h (sim_core_write_8): Define.

Tue Oct 28 12:29:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-bits.h: Document ROTn macro.

        * sim-endian.h (H2T): Handle 16 byte variables.

        * sim-n-core.h (sim_core_read_unaligned_N): Return a dummy when an
        error.

        * sim-core.c: Do not generate sim_core_*_word.

        * sim-n-core.h (sim_core_trace_N): Add line_nr argument.
        (sim_core_write_aligned_N, sim_core_read_aligned_N): Update.

        * sim-core.h (sim_core_read_unaligned_word,
        sim_core_read_aligned_word, sim_core_read_word,
        sim_core_write_unaligned_word, sim_core_write_aligned_word,
        sim_core_write_word): Change to macros that map onto sim_core_*_N.

Mon Oct 27 11:25:10 1997  Doug Evans  <devans@canuck.cygnus.com>

        * sim-n-endian.h: Add TAGS entrys for 16 byte versions.

        * sim-endian.h: Disable 16 byte support.

Mon Oct 27 12:00:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-endian.c (_SWAP_16): Define.  Generate 126 bit swap code.

        * sim-n-core.h (sim_core_trace_N): New function.
        (sim_core_read_aligned_N, sim_core_write_aligned_N): Use,
        (sim_core_read_unaligned_N): Do not retyrn bogus value wden error.

        * sim-endian.h:  Add 128 bit variant.

        * sim-core.h, sim-core.c: Add 128 bit variant.

        * sim-types.h: Add signed128 and unsigned128 types using a struct.

Fri Oct 24 11:33:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-events.c (sim_events_process): Clear events->work_pending.
        (sim_events_tickn, sim_events_tick): Accumulate, instead of
        setting, nr_ticks_to_process.
        (sim_events_preprocess): Allow nr_ticks_to_process to be non-zero
        when the event queue isn't next.

        * sim-events.h, sim-events.c (sim_events_slip): New function.

Wed Oct 22 14:18:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-hload.c (sim_load): Pass lma_p==0 and do_load=sim_load.

        * sim-utils.h, sim-load.c (sim_load_file): Add lma_p and do_load
        arguments.

Tue Oct 21 18:37:57 1997  Doug Evans  <devans@canuck.cygnus.com>

        * nrun.c (main): Remove useless test of name != NULL.
        Exit if bfd_openr fails.  Call bfd_check_format after bfd_openr.

Tue Oct 21 10:42:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-fpu.c (EXPMAX): Type is unsigned.
        (MIN_INT, MAX_INT): Type is signed64.
        (i2fpu): Type of val is signed64.

Tue Oct 21 10:42:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-profile.h (PROFILE_PC_BUCKET_SIZE): Treat a shift of zero as
        a bucket size of zero.

        * sim-profile.c (OPTION_PROFILE_PC_GRANULARITY,
        OPTION_PROFILE_PC): Define.
        (profile_option_handler): Add support for --profile-pc and
        --profile-pc-granularity options.
        (profile_pc_init): When possible, compute nr buckets from bucket
        size.

        * sim-profile.c (profile_pc_init): Align the profile-pc end
        address with the profile-pc bucket size.

        * sim-profile.h (PROFILE_PC_NR_BUCKETS): Rename PROFILE_PC_SIZE to
        something less ambiguous.
        (PROFILE_PC_BUCKET_SIZE): Ditto for PROFILE_PC_SAMPLE_SIZE.

        * sim-profile.c (profile_pc_cleanup): New function. Move
        profile_pc_uninstall code to here.
        (profile_pc_uninstall): Call.
        (profile_pc_init): Call.

Mon Oct 20 17:23:58 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-profile.c (profile_print_pc): Dump pc profile to dmon.out
        file using BSD gprof format.

        * sim-bits.h (LSBIT, MSBIT, BIT): Force result to type
        unsigned_word.
        (LSBIT8, LSBIT16, LSBIT32, LSBIT64, MSBIT8, MSBIT16, MSBIT32,
        MSBIT64): Force result to unsignedN.

Thu Oct 16 11:38:56 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-alu.h (ALU16_BEGIN, ALU32_BEGIN, ALU64_BEGIN): Drop opening
        brace from macro.
        (ALU8_BEGIN, ALU8_SET, ALU8_ADD, ALU8_SUB, ALU8_NEGATE): Define.
        (ALU16_ADD, ALU16_SUB, ALU16_NEGATE): Simplify arrithmetic.
        (ALU32_ADD, ALU32_SUB, ALU32_NEGATE): Simplify arrithmetic.
        (ALU64_ADD, ALU64_SUB, ALU64_NEGATE): Simplify arrithmetic.

Wed Oct 15 09:24:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-core.h (struct _sim_core_mapping): Change free_buffer to
        type void*.

        * sim-core.c (sim_core_uninstall, new_sim_core_mapping,
        sim_core_map_attach, sim_core_map_detach): Change free_buffer to
        type void*.
        (sim_core_attach): Rename buffer_freed to free_buffer, type
        void*. Ensure that allocated buffer is alligned according to
        region's address.

Mon Oct 13 11:34:50 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-alu.h (ALU64_HAD_OVERFLOW): Define.
        (ALU64_SUB): Define.

        * Make-common.in (all): Build SIM_EXTRA_ALL first.
        (.gdbinit): Remove dependencies, generate once per build.

Tue Oct 14 19:20:09 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-n-core.h (sim_core_read_aligned_N,
        sim_core_write_aligned_N): Make xaddr param type address_word not
        unsigned_word.

Fri Oct  3 09:49:18 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-fpu.h, sim-fpu.c: Rewrite.  Change sim_fpu object to an
        unpacked floating point struct.  Pass sim_fpu object by reference.
        Add preliminary support for rounding modes.
        
Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

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

Thu Oct  2 19:43:52 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * aclocal.m4 (sim-bitsize): Fix typo, WITH_TARGET_WORD_BITSIZE not
        WITH_TARGET_BITSIZE.

Thu Sep 25 23:20:20 1997  Felix Lee  <flee@yin.cygnus.com>

        * sim-profile.c (profile_print_core): label needs empty statement.

Thu Sep 25 11:20:47 1997  Stu Grossman  <grossman@babylon-5.cygnus.com>

        * sim-break.c (sim_set_breakpoint sim_clear_breakpoint):  Use ZALLOC
        and zfree instead of xmalloc and free.  Prevents warnings.

Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>

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

Wed Sep 24 17:23:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * Make-common.in (SIM_BITSIZE): Assign from configured value.
        (CONFIG_CFLAGS): Add SIM_BITSIZE.

        * aclocal.m4 (--enable-sim-bitsize): Developer option for
        controling the bitsize/msb of the target.

Wed Sep 24 17:41:40 1997  Stu Grossman  <grossman@babylon-5.cygnus.com>

        * Make-common.in:  New files sim-break.c, sim-break.h.
        * sim-base.h:  Add point to breakpoint list to sim_state_base.
        * sim-break.c sim-break.h:  New modules that implement intrinsic
        breakpoint support.
        * sim-module.c:  Add breakpoint module.
        
Tue Sep 23 00:26:39 1997  Felix Lee  <flee@yin.cygnus.com>

        * sim-events.c (SIM_EVENTS_POLL_RATE): poll more often than once
        an hour.
        * sim-n-core.h (WITH_XOR_ENDIAN): MSVC barfs on
        if (0) { 1 % 0; }
        * sim-core.c (sim_core_xor_write_buffer): WITH_XOR_ENDIAN + 1.
        (SIGBUS) define for Windows.
        * sim-trace.c (trace_printf,debug_printf): added ALMOST_STDC.
        * sim-resume.c: define SIGTRAP for windows.
        * sim-xcat.h: use token pasting if ALMOST_STDC.

Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * Make-common.in (SIM_SCACHE, SIM_DEFAULT_MODEL): Assign
        configured values.
        (CONFIG_CFLAGS): Add same.
        
Mon Sep 22 17:20:27 1997  Felix Lee  <flee@cygnus.com>

        * sim-types.h (SIGNED64): ##i64 when _MSC_VER, not _WIN32.
        (SIGNED32): use ##i32.

Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>

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

Tue Sep 23 10:07:47 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * aclocal.m4 (sim-endian): Simplify logic determining [default]
        endian of target.

        * Make-common.in (SIM_WARNINGS, SIM_ALIGNMENT, SIM_ENDIAN,
        SIM_HOSTENDIAN, SIM_RESERVED_BITS, SIM_ASSERT, SIM_FLOAT,
        SIM_HARDWARE, SIM_INLINE, SIM_PACKAGES, SIM_REGPARM, SIM_SMP,
        SIM_STDCALL, SIM_XOR_ENDIAN): Assign configured values.
        (CONFIG_CFLAGS): Add same.

        * aclocal.m4: Perform AC_SUBST on optional options.

Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-config.h (WITH_DEFAULT_ALIGNMENT): Don't hardwire any alignment.

        * sim-options.c (standard_option_handler): Typo in warning message.

        * sim-base.h (STATE_MODEL): Make conditional on SIM_HAVE_MODEL.

        * sim-profile.c (profile_print_insn): Check 0 .. MAX_INSN for any
        insn count.  Make count conditional on there being a valid
        INSN_NAME.
        (profile_pc_init): Make default PC profile frequency an arbitrary
        256.

        * sim-base.h: Ditto.

        * sim-profile.h (WITH_PROFILE_MODEL_P): Only enable modeling when
        SIM_HAVE_MODEL.

        * sim-model.h (struct MACH): Depreciate, to be replaced by bfd
        archure struct.

Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>

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

Mon Sep 22 11:45:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * aclocal.m4 (sim_alignment): Simplify logic for selecting the
        configured alignment.

Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>

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

Fri Sep 19 17:26:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-config.c (sim_config): Check for default alignment.

        * sim-options.c (standard_option_handler): Add alignment option.

        * aclocal.m4 (sim_alignment): Allow configuration of hardwired and
        default alignment requirements on memory accesses.
        
Fri Sep 19 11:51:35 1997  Jeffrey A Law  (law@cygnus.com)

        * sim-load.c (sim_load_file): Return failure if the executable
        had no loadable sections.

Wed Sep 17 13:33:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-events.c (ETRACE): Use trace_printf not sim_io_printf for
        trace output.

        * sim-core.c (sim_core_signal): When bad access halt simulator
        SIGSEGV / SIGBUS instead of aborting.
        (signal.h): Include.
        
        * sim-watch.c (sim_watchpoint_install): Handler for watchpoint
        options was missing.

        * sim-bits.h (MOVED): Define

Wed Sep 17 10:33:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-alu.h (ALU32_HAD_OVERFLOW): Pacify GCC, Use MSBIT instead of
        BIT.

        * sim-bits.h (LSBIT, MSBIT): Check for overflow of shift value.

        * sim-bits.c: Add 8 bit versions of bit macros.

        * sim-bits.h: Ditto.

Tue Sep 16 16:15:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-bits.c (LSSEXT, MSSEXT): Replace SEXT.
        (LSINSERTED, MSINSERTED): Ditto for INSERTED.
        
        * sim-n-bits.h (MSSEXTn, LSSEXTn): Replace SEXTn.
        (LSINSERTDn, MSINSERTEDN): Ditto for INSERTEDn.
        
        * sim-bits.h (SEXT*): Define as MSEXT/LSEXT.
        (INSERTED*): Ditto for LSINSERTED/MSINSERTED.
        
Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * aclocal.m4 (SIM_AC_COMMON): Add optional config.h file argument.
        configure.in: Output to cconfig.h instead of config.h.

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

Mon Sep 15 15:39:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-utils.c (sim_analyze_program): Set STATE_ARCHITECTURE from
        BFD if known.

Tue Sep  9 21:46:46 1997  Felix Lee  <flee@cygnus.com>

        * callback.c (os_write): divert stdout and stderr to their
        respective hooks.

Thu Sep 11 10:08:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-profile.c (profile_print_speed): Call
        sim_events_elapsed_time instead of PROFILE_EXEC_TIME for moment.

        * sim-events.c (sim_events_elapsed_time): New function return nr
        host MS consumed by the simulator.
        (sim_watch_valid): Use.

        * sim-module.c (modules): Install sim_events very very early.

        * sim-profile.c (profile_print): Call profile_print_pc.
        (print_bar):
        (profile_pc_init): New function, set up processor for PC
        profiling.
        (profile_print_pc): New function, print a PC profile.
        (profile_pc_event): New function, sample PC.

        * sim-profile.h (PROFILE_PC_COUNT, PROFILE_PC_START,
        PROFILE_PC_END, PROFILE_PC_SHIFT, PROFILE_PC_SAMPLE_SIZE): Add to
        profile struct.

        * sim-options.c (sim_print_help): Pacify GCC.

        * sim-n-core.h (sim_core_read_aligned_N,
        sim_core_write_aligned_N): Add un-conditional profile call.
        (sim_core_read_unaligned_N, sim_core_write_unaligned_N): Add
        profile call when aligned read/write isn't used.

        * sim-base.h: Include sim-profile, sim-model after sim-core &
        sim-events allow sim-core to define useful values.

        * sim-profile.c (OPTION_PROFILE_CORE): Define.
        (profile_option_handler, profile_options): Add support for
        --profile-core option.
        (print_bar): Include when core profiling.
        (profile_print_core): New function, print core profile.

        * sim-config.c (print_sim_config): Print profile status.

        * sim-profile.h (PROFILE_NEXT_IDX, PROFILE_core,
        WITH_PROFILE_PC_P): Define.
        (PROFILE_CORE_COUNT): Count each core-map/size separatly.
        (PROFILE_COUNT_CORE): Define.

Thu Sep 11 08:44:52 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-watch.c (handle_watchpoint): Pass a char** index into the
        interrupt_names array as the data.
        (sim-watch.h): Document.

Wed Sep 10 16:15:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-options.c (sim_print_help): When the doc string is to long
        word wrap it.

        * sim-watch.c (sim_watchpoint_install): Use option.doc_name so
        that only the first few the watch options are listed.  Generate
        meanginful usage messages.

        * sim-options.h (struct OPTION): Clarify use of doc_name field
        
Wed Sep 10 13:23:24 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-options.c (OPTION_ARCHITECTURE_INFO): New option.
        (standard_option_handler): Handle --architecture-info.

Tue Sep  9 21:46:46 1997  Felix Lee  <flee@cygnus.com>

        * sim-core.h (sim_cpu_core): [WITH_XOR_ENDIAN + 1], to avoid
        illegal zero-sized array.
        * sim-core.c (sim_core_xor_read_buffer): same.

Tue Sep  9 11:20:35 1997  Doug Evans  <dje@canuck.cygnus.com>

        * nltvals.def: Regenerate.

Tue Sep  9 02:10:36 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-fpu.c (DP_FRACHIGH2): Define LL using SIGNED64.

Mon Sep  8 12:22:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-bits.c (MASKED): Delete.
        (EXTRACTED): Delete.
        (LSEXTRACTED, MSEXTRACTED): New functions.

        * sim-n-bits.h (MASKEDn): Delete, define as MSMASKED or LSMASKED.
        (MSMASKEDn, LSMASKEDn): Add last argument.
        (MSMASK*): Ditto.
        
        * sim-bits.h (EXTEND8, EXTEND16): Define.
        (EXTRACTED64): Define as 64 bit extract, not 32 bit.

        * sim-run.c (sim_engine_run): Use CPU_CIA macro.

        * sim-engine.h (SIM_ENGINE_HALT_HOOK): Use CPU_CIA to get at
        current instruction address.

        * sim-inline.h (*_ENGINE): Define.

Fri Sep  5 08:39:02 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-core.c (sim_core_attach): Fix checks of modulo/mask.

        * sim-watch.c (delete_watchpoint): Delete by ident and type.
        (watch_option_handler): Call delete_watchpoint with ident or type.
        (sim_watchpoint_install): Create interrupt specific watchpoint
        commands on the fly.
        (do_watchpoint_create): New function, create a watch point using
        type/int-nr info encoded in the option nr.
        (do_watchpoint_info): New function.  List active watchpoints.

        * sim-watch.h: Change data structure to a list.

        * sim-memopt.c (memory_option_handler): Require explicit "all"
        before deleting all memory regions.

        * sim-utils.c (sim_do_commandf): New function, printf version of
        sim_do_command.

        * sim-basics.h (asprintf, vasprintf): Hack, define for CYGWIN32. 
        
        * sim-alu.h (ALU64_ADD): Use explicit MSEXTRACTED64, do not assume
        bit endianness.
        (SIGNED64, UNSIGNED64): Delete.
        (ALU64_ADD): Don't rely on bit endianness.
        (ALU64_BEGIN): Define.

        * sim-n-bits.h (MSEXTRACTEDn, LSEXTRACTED): New functions.
        (EXTRACTEDn): Delete, define as either LSEXTRACTED or MSEXTRACTED.

        * sim-types.h (SIGNED64, UNSIGNED64): New macros, attach relevant
        suffix - u64, LL - to 64 bit constants.

Thu Sep  4 09:27:54 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-config.c (sim_config): Add assert for SIM_MAGIC_NUMBER.

        * sim-utils.h (NZALLOC): Define - zalloc * N.

        * sim-hrw.c (sim_read, sim_write): New file.  Provide generic
        implementation of read/write functions.

        * Make-common.in (sim-hrw.o): New target.

        * sim-base.h (STATE_MEMOPT_P): Delete, simulators _always_ add
        memory.

        * sim-memopt.c (memory_option_handler): Implement memory-size
        command. Implement memory-alias command.  Let memory-delete delete
        all memory regions.
        (add_memopt): New function.  Add a memory region.
        (do_memopt_delete): New function. Delete a memory region.

        * sim-utils.c (sim_elapsed_time_get): Never return zero.

        * sim-core.c (sim_core_detach): New function.
        (sim_core_map_detach): New function. Perform the actual detach.
        (sim_core_init): Move initialization code from here.
        (sim_core_install): To here.
        (sim_core_uninstall): And here.

        * sim-module.c: Add memopt module.

        * sim-base.h (STATE_MEMOPT, STATE_MEMOPT_P): Add memopt to
        simulator base type.

        * Make-common.in (sim_main_headers): Add sim-memopt.h
        (sim-memopt.o): New target.

        * sim-core.c (sim_core_install): Add core_options to the option
        table.

        * sim-watch.c (watch_options): Make --delete-watch a synonym for
        --watch-delete.

        * sim-config.h (WITH_MODULO_MEMORY): Define as 0.  Update
        comments.

        * sim-core.h (struct _sim_core_mapping): Change nr_bytes to type
        address_word, add mask member.
        
        * sim-core.h, sim-core.c (sim_core_attach): Make nr_bytes of type
        address_word, allow for 64bit targets in 32bit host. Add modulo
        argument.
        (sim_core_map_attach): Ditto.
        (new_sim_core_mapping): Ditto.
        (sim_core_translate): Mask address when modulo memory.

Wed Sep  3 17:32:54 1997  Doug Evans  <dje@seba.cygnus.com>

        * sim-hload.c (sim_load): Add assert for SIM_MAGIC_NUMBER.

        * gdbinit.in: New file.
        * aclocal.m4 (SIM_AC_OUTPUT): Build .gdbinit.
        * Make-common.in (distclean): Delete .gdbinit.
        (.gdbinit): Add rule for.
        * configure: Regenerated to track ../common/aclocal.m4 changes.

        * Make-common.in (cgen-run.o): Add rule for.

Wed Sep  3 10:08:21 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-resume.c (sim_resume): Suspend/resume the simulator.

        * sim-events.c (sim_watch_valid): Compute total elapsed time from
        both resumed and previous elapsed time.
        (sim_events_init): Set initial_wallclock and current_wallclock to
        zero.
        (sim_events_install): Install sim_events_suspend and
        sim_events_resume.
        (sim_events_watch_clock): Allow for suspended simulator when
        computing the time of the clock event.

        * sim-events.h (struct _sim_event): Add resume_wallclock, rename
        initial_wallclock to elapsed_wallclock, set both to zero.
        (sim_events_init, sim_events_uninstall): Delete prototypes.

        * sim-module.h (MODULE_SUSPEND_FN, MODULE_RESUME_FN): Define types.
        
        * sim-module.c(sim_module_resume, sim_module_suspend): New
        functions.

Wed Sep  3 10:08:21 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-core.c (sim_core_map_attach): Clarify memory overlap error
        message.

Tue Sep  2 14:57:06 1997  Doug Evans  <dje@canuck.cygnus.com>

        * Makefile.in (TAGS): Add support for "/* TAGS: foo */" marker.
        * Make-common.in (TAGS): Likewise.
        * sim-n-bits.h: Add TAGS comments for all functions.
        * sim-n-core.h: Likewise.
        * sim-n-endian.h: Likewise.

Mon Sep  1 10:50:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-utils.c (sim_state_alloc): Set CPU backlinks, callback and
        kind.
        
        * sim-base.h (sim_state_alloc): Add callback and kind arguments.
        
        * sim-base.h (INVALID_INSTRUCTION_ADDRESS): Add default
        definition.

Sat Aug 30 09:47:21 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-fpu.c (DP_GARDMSB, ...): Make unsigned.
        (DP_FRACHIGH, DP_FRACHIGH2, ..): Use MSMASK to avoid LL.

Fri Aug 29 13:37:44 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-core.c (sim_core_map_attach): Cast attach enum to int.
        (sim_core_xor_read_buffer, sim_core_xor_write_buffer): Make
        nr_transfered and nr_this_transfer unsigned.

        * sim-events.c (sim_events_tickn): N is signed, as limited to
        MAXINT.

        * sim-n-endian.h (offset_N): Change size to unsigned.

        * callback.c (os_poll_quit): Add prototypes for kbhit and getkey.

Fri Aug 29 10:10:53 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-utils.c (sim_copy_argv): Delete, replaced by dupargv.

        * sim-options.c (sim_parse_args): Use dupargv.

Thu Aug 28 10:36:34 1997  Doug Evans  <dje@canuck.cygnus.com>

        * sim-options.c (standard_option_handler): Use xstrdup, not strdup.

Thu Aug 28 12:09:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-base.h (STATE_ARCHITECTURE, STATE_TARGET): Add to simulator
        base type.

        * sim-options.c (standard_options): Add --architecture=MACHINE and
        --target=TARGET options.
        (OPTION_ARCHITECTURE, OPTION_TARGET): Define.
        (standard_option_handler): Handle architecture and target options.
        (bfd.h): Include.
        
        * sim-utils.c (sim_analyze_program): Pass STATE_TARGET to
        bfd_openr.
        (sim_analyze_program): Set prog_bfd architecture from
        STATE_ARCHITECTURE if known.

Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

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

Wed Aug 27 18:11:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * aclocal.m4 (enable-sim-warnings): Remove comment stating
        that option does not apply to certain files.

Wed Aug 27 15:13:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-bits.h (LSBIT8, LSBIT16, LSBIT32, LSBIT64, LSBIT, MSBIT8,
        MSBIT16, MSBIT32, MSBIT64, MSBIT): New macros - single bit as
        offset from MSB/LSB.

        * sim-endian.h (A1_8, A2_8, A4_8, A1_4, A2_4, A1_2): New macro,
        access address of sub word quantity of a hosts 16, 32, 64 bit word
        type.
        (V1_2, V1_4, V2_4, V1_8, V2_8, V4_8): Ditto for values.
        (U8_1, U8_2, U8_4, U4_1, U4_2, U2_1): Ditto for set of values.
        (V2_H1, V2_L1, V4_H2, V4_L2, V8_L4, V8_H4): Given N byte argument,
        return N*2 byte value with argument in Hi/Lo word.  Renamed from
        V1_H2, V1_L2, V2_H4, V2_L4, V4_H8, V4_L8.
        
        * sim-alu.h (ALU32_HAD_OVERFLOW): Use 64 bit mask not 32bit.
        (ALU16_HAD_CARRY, ALU32_HAD_CARRY, ALU16_HAD_OVERFLOW): Use MSBIT
        so that bit offset is explicit.

Wed Aug 27 11:55:35 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-utils.c (sim_analyze_program): Add prog_name argument.
        Update STATE_PROG_BFD when needed with a dup'd copy of the
        program.

        * sim-config.c (sim_config): Delete ABFD argument, use
        STATE_PROG_BFD directly.

Tue Aug 26 12:55:26 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * run.c (main): Pass the open ABFD to sim_create_inferior.
        
        * nrun.c (main): Determine prog_bfd.  Pass to sim_create_inferior
        and sim_load.
        (bfd.h): Include.
        
        * sim-hload.c (sim_load): New file. Implement generic sim_load for
        hardware only simulator targets.

        * Make-common.in (sim-hload.o): Add rule.

Wed Aug 27 09:51:42 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-utils.c (sim_copy_argv): Rewrite to match malloc strategy
        used by copyargv and freeargv.

        * sim-options.c (sim_parse_args): Save a copy of PROG-ARGS in
        STATE_PROG_ARGV, not just a pointer.

Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

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

Mon Aug 25 12:11:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * aclocal.m4 (sim-endian): Add second argument to
        SIM_AC_OPTION_ENDIAN.  First is hardwired endian, second is
        default endian when not hardwired.

        * sim-config.h (WITH_DEFAULT_TARGET_BYTE_ORDER): New macro, if all
        else failes value for target byte order.

        * sim-config.c (sim_config): Add abfd arguments. Set
        STATE_PROG_BFD accordingly.  Determine prefered_target_byte_order
        from same.
        (sim_config): Return SIM_RC, don't abort.
        (bfd.h): Include.
        
        * run.c (main): Update call to sim_open - add ABFD argument.
        * nrun.c (main): Add NULL ABFD argument.

Thu Aug 14 12:48:57 1997  Doug Evans  <dje@canuck.cygnus.com>

        * callback.c (os_poll_quit): Make static.
        Call sim_cb_eprintf, not p->eprintf.
        (sim_cb_printf, sim_cb_eprintf): New functions.
        * sim-utils.h (sim_cb_printf, sim_cb_eprintf): Declare.

        * sim-basics.h (zalloc,zfree,sim_add_commas,SIM_ELAPSED_TIME,
        sim_elapsed_time_get,sim_elapsed_time_since): Move decls to
        sim-utils.h. #include sim-utils.h.
        * sim-utils.h: Above decls moved here.
        (sim_analyze_program,sim_load_file): Use `struct _bfd', not `bfd'.

        * sim-watch.c (action_watchpoint): Fix thinkos.

Thu Jul 24 08:48:05 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * sim-types.h:  Fix defs of 64 bit data types for MSVC.

Tue Jul 22 10:35:37 1997  Doug Evans  <dje@canuck.cygnus.com>

        * sim-n-core.h (sim_core_write_unaligned_N): Add missing break
        to FORCED_ALIGNMENT case.

Thu Jun  5 13:48:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * callback.c (target_to_host_open): Handle hosts with O_BINARY.

Thu Jun  5 08:47:10 1997  Jeffrey A Law  (law@cygnus.com)

        * Make-common.in (libsim.a): Fix typo.

Thu Jun  5 13:48:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * nrun.c (main): Verify the structure returned before using it.

Wed Jun  4 11:44:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-config.h (WITH_ENGINE): Enable the sim-engine module by
        default.

        * sim-engine.c (sim_engine_install): New function.  Install the
        engine init functions.
        (sim_engine_init): [Re]initialize the simulator engine.
        
        * sim-module.c: Add sim_engine to list of modules that always
        install.

Tue Jun  3 04:52:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-watch.c (schedule_watchpoint): Use sim_unschedule_watchpoint
        to remove the old watchpoint, not delete_watchpoint.
        (watch_option_handler): Action the correct watchpoint, not just
        cycles.

Wed May 28 14:47:41 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-n-core.h (sim_core_write_aligned_N): For 8byte reads, output
        both low and high word.
        (sim_core_write_aligned_N): Ditto.
        
        * sim-trace.c (set_trace_options): Delete code explicitly setting
        core->trace.

        * sim-options.c (sim_print_help): Call the list commands if not a
        standalone simulator.
        (sim_print_help): Advise that some options may not be applicable.
        
        * sim-trace.c (set_trace_options): Assume core present.

        * sim-events.c (sim_events_schedule_after_signal): Overflow signal
        buffer when full not almost full.

Tue May 27 14:32:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-events.c (sim_events_process): Don't blat the event queue
        when processing watchpoints.

        * sim-watch.h: Make arg unsigned long - stop sign extension.

        * sim-events.c (sim_watch_valid): rewrite so debugable.

        * sim-config.h (WITH_XOR_ENDIAN): Default to zero.

        * sim-watch.c (schedule_watchpoint): Add is_within option so that
        inequality test is possible.
        (handle_watchpoint): Re-pass is_within arg.
        (watch_option_handler): When `!' prefix to pc-watchpoint arg pass
        0 to schedule_watchpoint's is_within arg.
        (sim_watchpoint_init): Re-pass is_within arg.

        * sim-options.c (sim_print_help): Add is_command argument.  Don't
        include -- prefix when called from the command line interpreter.

        * sim-watch.c (schedule_watchpoint): Pass true is_within argument.

        * sim-events.c (sim_events_watch_sim): Add is_within argument,
        zero indicates that the test should be reversed.
        (sim_events_watch_core): Ditto.
        (WATCH_CORE): Compare range against is_within.
        (WATCH_SIM): Ditto.

Tue May 27 12:48:03 1997  Andrew Cagney  <cagney@b2.cygnus.com>

        * sim-events.c (WATCH_CORE): Pass NULL cpu argument to
        sim_core_read_buffer.  Check nr-bytes transfered.

        * sim-core.h (sim_core_common): Define a new struct that contains
        the common data.  to sd and cpu structures.
        * sim-core.c (sim_core_attach): Update.
        (sim_core_init): Update. Remember to copy initialized data to each
        cpu.
        (sim_core_find_mapping): Ditto.

        * sim-core.c (sim_core_read_buffer): Add cpu argument.
        (sim_core_write_buffer): Ditto.

        * sim-n-core.h (sim_core_read_unaligned_N): When mis-aligned
        transfer use xor version of read buffer.
        (sim_core_write_unaligned_N): Ditto for write.
        
        * sim-core.c (sim_core_xor_read_buffer): New function implement
        xor-endian data read breaking transfer up into xor-endian sized
        blocks.
        (sim_core_xor_write_buffer): Ditto for write.
        (reverse_n): Reverse order of arbitrary number of bytes in buffer
        - needed for xor-endian transfers.

Fri May 23 14:24:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-inline.h: Review description.
        
        * sim-core.h, sim-core.c: Reduce number of functions being inlined
        to just those involved in data transfers and configuration.
        
        * sim-xcat.h (XSTRING): New macro, map macro definition onto
        string.
        * sim-n-core.h (sim_core_read_aligned_N): Use.
        (sim_core_read_unaligned_N): Ditto.
        (sim_core_read_unaligned_N): Ditto..
        (sim_core_write_unaligned_N): Ditto.
        
        * sim-core.h: Add xor endian bitmap to main structure.  *
        
        sim-n-core.h (sim_core_write_aligned_N): Add suport for xor
        endian.
        (sim_core_read_aligned_N): Ditto.

        * sim-core.c (sim_core_set_xor_endian): New function.
        (sim_core_attach): Don't overwrite the per-cpu xor map when
        cloning the global core.

Fri May 23 10:53:13 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-engine.h: Update below so that it is using an enumerated
        type.

Thu May 22 09:12:16 1997  Gavin Koch  <gavin@cygnus.com>

        * sim-engine.c (sim_engine_restart): 
        * sim-resume.c (sim_resume): Change longjmp param/setjmp 
        return value used for simulator restart from 0 to 2.

Wed May 21 08:47:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * cgen-scache.c (scache_option_handler): Add is_command arg.

        * sim-model.c (model_option_handler): Add is_command argument.

        * sim-profile.c (profile_option_handler): Add is_command arg.

        * sim-events.c (sim_watch_valid): Use ub64, lb64 when 64bit value
        involved.

        * sim-module.c (sim_module_add_init_fn): Call init fn in the same
        order that they are registered.

        * sim-options.h (OPTION_HANDLER): Add argument to differentiate
        between option and command line processing.

        * sim-options.c: Include stdlib.h, ctype.h.

        * Make-common.in (sim-watch.o): Add rule.
        (sim_main_headers): Assume sim-assert.h included.
        (sim-*.o): Simplify make rule.
        
        * sim-module.c: Add sim_watch_install to module list.

Tue May 20 14:15:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-base.h (STATE_LOADED_P): New predicate. Set once everything
        has been loaded.

        * sim-trace.c (trace_install): Check magic. Include sim-assert.h.
        * sim-events.c (sim_events_install): Ditto.
        * sim-core.c (sim_core_install): Ditto.
        * sim-model.c (model_install): Ditto.
        * sim-options.c (standard_install): Ditto.
        * sim-profile.c (profile_install): Ditto.
        * sim-reason.c (sim_stop_reason): Ditto.
        * sim-run.c (sim_engine_run): Ditto.
        * sim-utils.c (sim_analyze_program): Ditto.

        * sim-module.c (modules): Make profile_install and trace_install
        optional.

        * sim-base.h (STATE_MEM_BASE): Define for flat memory systems.

        * sim-options.c (standard_option_handler): Set the byte order.

        * sim-events.c (sim_events_process): Allow multi tick processing.
        (sim_events_tickn): New function - multi cycle tick.
        
        * sim-events.h (sim_events_tickn, sim_events_timewarp): Add
        prototypes.  Under development.
        (sim_events): Replace processing with nr_ticks_to_process.

Tue May 20 09:39:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * nrun.c (main): Pass callbacks to sim_open instead of using
        sim_set_callbacks.

        * run.c (main): Ditto.

Mon May 19 12:07:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-events.c (sim_events_zalloc): Signal save memory allocator -
        stop tk interrupting malloc calls.
        (sim_events_zalloc): Converse.

        * Make-common.in (sim_main_headers): Add sim-events.h.

        * sim-events.c (sim_events_schedule_after_signal): Change return
        type to void - signal events are strictly internal.
        (sim_events_init): Allocate a finite buffer for signal events.
        (sim_events_schedule_after_signal): Enter signal events into the
        signal buffer.

        * sim-engine.c (sim_engine_halt): Check SIM_DESC magic.
        (sim_engine_restart): Ditto.
        (sim_engine_abort): Ditto.
        * sim-stop.c (sim_stop): Ditto.
        (control_c_simulation): Ditto.
        * sim-resume.c (sim_resume): Ditto.
        (has_stepped): Ditto.
        * sim-abort.c (sim_engine_abort): Ditto.

        * sim-basics.h (transfer_type): New type.

        * sim-core.c (sim_core_signal): New function. Print core signal
        information.
        (sim_core_find_mapping): Add transfer argument.

        * sim-n-core.h (sim_core_{write,write}_unaligned_N): Call
        SIM_CORE_SIGNAL if a recoverable abort.
        * sim-core.c (sim_core_find_mapping): Ditto.

Fri May 16 15:13:21 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-core.c (sim_core_find_mapping): Replace calls to
        sim_io_error to more resiliant sim_engine_abort.

        * sim-n-core.h (sim_core_read_unaligned_N): Ditto.
        (sim_core_write_unaligned_N): Ditto.

Tue May 13 13:50:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-module.c: Add sim_events_install to list.
        
        * sim-events.c (sim_events_install, sim_events_uninstall): Clonse
        from sim_core_*.
        (sim_events_init): Now returns SIG_RC.

        * sim-run.c: New file. Generic sim_engine_run.
        * sim-reason.c: New file. Generic sim_stop_reason.
        * sim-stop.c: New file. Generic sim_stop.
        * sim-resume.c: New file. Generic sim_resume.
        
        * Make-common.in (sim-engine.o): Add rule.
        (sim-run.o, sim-reason.o, sim-stop.o, sim-resume.o): Ditto.
        
        * sim-engine.h, sim-engine.c: New file. Provide generic
        implementation of sim_engine_halt, sim_engine_error. et.al.

        * sim-base.h (sim_state_base): Add member halt.
        (sim-engine.h): Include.

        * sim-events.h (sim_event_handler): Always pass SIM_DESC to event
        handlers.
        * sim-events.c (sim_events_poll): Update event handler.

Tue May 13 09:57:49 1997  Andrew Cagney  <cagney@b2.cygnus.com>

        * sim-events.h, sim-events.c (sim_events_watch_clock): New
        function.
        (sim_events_watch_sim): New function.
        (sim_events_watch_core): New function.
        (sim_watch_valid): New function.
        (sim_events_preprocess): New function.
        (sim_events_process): Process the watchpoints as well as the timer
        queue.
        (sim_events_tick): Check WORK_PENDING instead of the hold queue.
        (sim_events_deschedule): Check all the queues when removing an
        event.
        (sim_events_init): Ditto for cleaning.

Mon May 19 12:07:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-fpu.c (is_ufpu_number): Comment out - currently unused.

Mon May 19 11:23:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * callback.c (os_open): Type of arg flags is int.

Fri May 16 22:26:43 1997  Michael Meissner  <meissner@cygnus.com>

        * sim-fpu.c (sim_fpu_is_{eq,ne,lt,le,gt,ge}): Compare Infinities
        just like normal numbers as per IEEE rules.

Wed May 14 21:20:38 1997  Bob Manson  <manson@charmed.cygnus.com>

        * callback.c (os_close): Mark the descriptor as being
        available if the close succeeded.
        (os_open): Pass 0644 as the mode of the file being created.

Thu May 15 10:58:52 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-fpu.c (pack_fpu, unpack_fpu): New functions - decode a
        float.

        * sim-inline.c (SIM_INLINE_C): Rename from _SIM_INLINE_C_.
        * sim-lnline.h: Update.

        * sim-fpu.h, sim-fpu.c (sim_fpu_[iu]{32,64}to): New int2fp
        conversion functions.
        (sim_fpu_to{32,64}[iu]): New fp2int functions.
        
        * sim-fpu.h, sim-fpu.c (sim_fpu_is_{lt,le,eq,ne,ge,gt}): New fp
        compare functions.  Replacing.
        (sim_fpu_cmp): This. Delete.
        
Mon May 12 14:49:05 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-core.c (sim_core_find_mapping): Call engine_error not
        sim_io_error when possible.

Mon May 12 08:55:07 1997  Andrew Cagney  <cagney@b2.cygnus.com>

        * sim-endian.h (V1_H2): Add macro's to insert a word into a
        high/low double word.

        * sim-trace.h: Remove definition of attribute - defined in
        sim_basics.h.

Mon May 12 08:55:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-options.h (struct OPTION): Add doc_opt as the documenting
        name of the option - or family of options.

        * sim-options.c (sim_args_command): Match command `a-b c' with
        option `--a-b-c' from option table.

Thu May  8 12:40:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-options.c (sim_print_help): For optional arguments, wrap
        them in [].

        * sim-trace.c (set_trace_options): New function, handle optional
        argument and multiple assignment.
        (trace_option_handler): Update.

        * sim-trace.c (trace_option_handler): Trace branch and not fpu
        when branch tracing selected.

Wed May  7 15:19:58 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-trace.c (trace_one_insn): Make a va-args function.

        * sim-trace.c (trace_vprintf): New function, va-arg version of
        trace_printf.

Tue May  6 16:38:16 1997  Doug Evans  <dje@canuck.cygnus.com>

        * sim-trace.c (trace_uninstall): Don't close a file twice.
        * sim-profile.c (profile_uninstall): Likewise.

Tue May  6 06:14:01 1997  Mike Meissner  <meissner@cygnus.com>

        * sim-trace.c (toplevel): Include bfd.h.
        (trace_options): Note that --trace-linenum also turns on
        --trace-insn.  Add --trace-{branch,semantics}.
        (trace_option_handler): If --trace-linenum, also turn on
        --trace-insn.  Add --trace-branch support.  If --trace-semantics,
        turn on ALU, FPU, branch, and memory tracing.
        (trace_one_insn): New function to trace an instruction.  Support
        --trace-linenum.
        (OPTION_TRACE_*): Use an enum, rather than lots of defines.

        * sim-trace.h (TRACE_{SEMANTICS,BRANCH}_IDX): Add new macros.
        (MAX_TRACE_VALUES): Use 32, not 12 by default.
        (TRACE_branch): Add new mask.
        (TRACE_*_P): Define all possible trace_p macros.
        (trace_one_insn): Declare function.

Mon May  5 14:08:34 1997  Mike Meissner  <meissner@cygnus.com>

        * sim-trace.h (__attribute__): Define as nothing if not GNU C or
        GNU C doesn't support __attributes__.
        ({trace,debug}_printf): Add attribute's so -Wformat can check the
        format strings.

Mon May  5 11:16:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-config.h (FORCED_ALIGNMENT): New alignment option -
        addresses are masked forcing them to be correctly aligned.
        (WITH_ALIGNMENT): Make NONSTRICT_ALIGNMENT the default.
        * sim-config.c (config_alignment_to_a): Update.

        * sim-core.h (sim_cpu_core): New data type contains cpu specific
        core data.
        * sim-base.h (CPU_CORE): Add cpu specific core data to cpu base
        type.
        * sim-core.c (sim_core_attach): Add CPU argument.  Ready for
        processor specific core maps.
        (sim_core_map_attach): Copy the core map data to each of the
        processor specific core data structures.
        * sim-core.c (sim_core_find_mapping): Update.

        * sim-n-core.h (sim_core_read_N, sim_core_write_N): Rename.
        (sim_core_write_aligned_N, sim_core_write_aligned_N): New names.
        (sim_core_write_unaligned_N, sim_core_write_unaligned_N): New
        alternatives that handle unaligned addresses.
        (sim_core_{read,write}_{,un}aligned_N): Drop SIM_DESC arg, replace
        with just CPU arg.
        * cgen-utils.c (sim_disassemble_insn): Update.

Mon May  5 13:19:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-trace.h (TRACE_FPU_IDX): Add Floating-point specific
        tracing.

        * sim-fpu.h, sim-fpu.c: New files - prototype for generic target
        fpu support.

        * sim-inline.h, sim-inline.c: Add support for SIM_FPU.

Fri May  2 17:59:42 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-core.c (sim_core_map_to_str): New function ascii equivalent
        to map type.
        
        * sim-n-core.h (sim_core_read_N, sim_core_write_N): Use in trace
        statement.

Fri May  2 17:28:02 1997  Andrew Cagney  <cagney@b2.cygnus.com>

        * cgen-trace.c: Prepend additional trace_printf argument.

        * cgen-utils.c (sim_disassemble_insn): Add additional core
        arguments.

Fri May  2 11:40:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * nrun.c (main): Catch/report errorenous simulator states.

        * sim-module.c: #include "libiberty.h" so that xmalloc is defined.
        * sim-trace.c: #include string.h/strings.h so that memset is
        defined.
        * sim-utils.c: Ditto.
        * sim-profile.c: Ditto. And stdlib.h.
        (print_bar): Only define when used by instruction or memory profiler.

        * sim-options.c (standard_option_handler): Make ul more local.
        
        * sim-load.c (sim_load_file): Make the name constant.
        (sim_load_file): Passify gcc.

        * sim-utils.h: New file, pre-declare utilites in corresponding .c
        file.
        * sim-utils.c, sim-load.c: Include sim-utils.h.
        
        * sim-base.h (sim_cpu): Pre define here so available to all.

        * sim-core.h (DECLARE_SIM_CORE_WRITE_N, DECLARE_SIM_CORE_READ_N):
        Restore the sim_cpu and instruction_address arguments so that full
        information is available to the abort function.
        * sim-core.c (sim_core_find_mapping, sim_core_write_buffer): Ditto.
        * sim-n-core.h (sim_core_write_N, sim_core_read_N): Update.

        * sim-trace.h, sim-trace.c (trace_option_handler): Add interim
        tracing support for sim-events and sim-core.
        (trace_option_handler): Convert #if to if where possible so always
        compiled/checked by C compiler.
        * sim-n-core.h (sim_core_write_N, sim_core_read_N): Update.
        
        * sim-base.h: Adjust comment documenting how to define the cpu
        structure.
        (sim_state_base): Add sim_core and sim_events to simulator base
        object.

        * sim-trace.h, sim-trace.c (trace_printf): Add SIM_DESC argument.
        * sim-core.c (sim_core_init, sim_core_attach,
        sim_core_find_mapping): Update.
        * sim-events.c (ETRACE, sim_events_init, sim_events_time,
        update_time_from_event, insert_sim_event,
        sim_events_schedule_after_signal, sim_events_deschedule,
        sim_events_tick): Ditto.
        
        * sim-basics.h (sim-module.h, sim-trace.h, sim-profile.h,
        sim-model.h): Move #includes from here.
        * sim-base.h: To here.
        (sim-core.h, sim-events.h, sim-io.h): Include also
        
Wed Apr 30 15:37:54 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * callback.c (default_callback): Missing initialisers.

Thu May  1 10:40:47 1997  Doug Evans  <dje@canuck.cygnus.com>

        * sim-utils.c (sim_add_commas): New function.
        * sim-basics.h (sim_add_commas): Add prototype.
        * cgen-scache.c (scache_print_profile): Print commas in numbers.
        * sim-profile.c (COMMAS): New macro.
        (print_*): Use it to print commas in numbers.

        * configure: Regenerated.

        * cgen-sim.h (sim_signal_type): Add SIM_SIGINT.
        (cgen_state): New member run_fast_p.
        (cgen_init): Add prototype.
        (sim_disassemble_insn): New arg `cpu'.
        * cgen-trace.c (trace_insn): Update call to sim_disassemble_insn.
        * cgen-utils.c (cgen_init): New function.
        (sim_disassemble_insn): New arg `cpu'.  Rewrite fetching of insn.
        * genmloop.sh: Call engine_halt if loop exits.

        * Makefile.in (sim-options_h): Define.
        (sim-{module,options,trace,profile,utils}.o): Clean up dependencies.
        (sim-model.o): Add new rule.
        (cgen-{scache,trace,utils}.o): Add new rules.
        * aclocal.m4 (SIM_AC_OPTION_{SCACHE,DEFAULT_MODEL}): Add.
        * cgen-scache.c (scache_print_profile): Change `sd' arg to `cpu'.
        Indent output by 2 spaces.
        * cgen-scache.h (scache_print_profile): Update.
        * cgen-trace.c (trace_insn_fini): Indent output by 2 spaces.
        Use trace_printf, not fprintf.
        (trace_extract): Use trace_printf, not cgen_trace_printf.
        * genmloop.sh (!FAST case): Increment `insn_count'.
        * sim-base.h (sim_state_base): Only include scache_size if WITH_SCACHE.
        (sim_cpu_base): Rename member `sd' to `state' to be consistent with
        access macro's name.
        * sim-core.c (sim_core_init): Use EXTERN_SIM_CORE to define it.
        Change return type to SIM_RC.
        (sim_core_{install,uninstall}): New functions.
        * sim-core.h (sim_core_{install,uninstall}): Declare.
        (sim_core_init): Use EXTERN_SIM_CORE to define it.
        Change return type to SIM_RC.
        * sim-model.h (models,machs,model_install): Declare.
        * sim-module.c (modules): Add scache_install, model_install.
        (sim_post_argv_init): Set cpu->state backlinks.
        * sim-options.c (standard_options): Delete --simcache-size,--max-insns.
        (standard_option_handler): Likewise.
        * sim-profile.c (PROFILE_{HISTOGRAM,LABEL}_WIDTH): Move to
        sim-profile.h.
        (*): Assume ANSI C.
        (profile_options): Delete --profile-simcache.
        (profile_option_handler): Likewise.
        (profile_print_insn): Change `sd' arg to `cpu'.  Indent output 2
        spaces.
        (profile_print_{memory,model}): Likewise.
        (profile_print_simcache): Delete.
        (profile_print_speed): New function.
        (profile_print): Rewrite.
        * sim-profile.h (PROFILE_scache): Renamed from PROFILE_simcache.
        (WITH_PROFILE_SCACHE_P): Renamed from WITH_PROFILE_SIMCACHE_P.
        (PROFILE_DATA): Delete members simcache_{hits,misses}.
        (PROFILE_COUNT_SIMCACHE_{HIT,MISS}): Delete.
        (PROFILE_{CALLBACK,CPU_CALLBACK}): New types.
        (profile_print): Update prototype.

Wed Apr 30 11:34:14 1997  Doug Evans  <dje@canuck.cygnus.com>

        * cgen-scache.[ch], cgen-sim.h: New files.
        * cgen-trace.[ch], cgen-types.h, cgen-utils.c, genmloop.sh: New files.
        * sim-model.c: New file.

        * Make-common.in (clean targets): Undo patch of Apr. 22.

Fri Apr 25 15:28:32 1997  Mike Meissner  <meissner@cygnus.com>

        * sim-n-bits.h (signed): If we have a standard compiler, undef
        signed, so that signedN is defined correctly.

Thu Apr 24 00:00:07 1997  Doug Evans  <dje@canuck.cygnus.com>

        * sim-module.h, sim-model.h, sim-profile.h: New files.
        * sim-module.c, sim-profile.c: New files.
        * Make-common.in (SIM_PROFILE): Define
        (CONFIG_CFLAGS): Add $(SIM_PROFILE).
        (sim_main_headers): Add sim-module.h, sim-model.h, sim-profile.h.
        (sim_module.o,sim-profile.o): Add rules for.
        * aclocal.m4 (--enable-sim-trace): Allow symbolic arguments.
        (--enable-sim-profile): Add.
        * configure: Regenerated.
        * sim-base.h (sim_state_base): New members init_list, uninstall_list,
        model.  Move trace and profile support to sim-{trace,profile}.h.
        New members trace_data, profile_data.
        * sim-basics.h: #include sim-module.h, sim-model.h, sim-profile.h.
        * sim-config.h: Provide default definition of WITH_PROFILE.
        (WITH_TRACE): Change default to -1.
        (MAX_NR_PROCESSORS): Always define.
        * sim-options.c: Move trace and profile support to
        sim-{trace,profile}.h.
        (sim_pre_argv_init): Moved to sim-model.c.
        (standard_install): New function.
        * sim-options.h (sim_pre_argv_init): Move decl to sim-model.c.
        (standard_install): Declare.
        * sim-trace.c: Tracing option handling moved here from sim-options.c.
        (trace_install, trace_uninstall): New functions.
        (trace_printf): Update reference to TRACE_FILE.
        * sim-trace.h (TRACE_FOO_IDX): Moved here from sim-base.h.
        (TRACE_foo): Bit masks for symbolic arguments to --enable-sim-trace.
        (WITH_TRACE_FOO_P): Define.
        (trace_install): Declare.
        (TRACE_DATA): New struct.

Wed Apr 23 17:23:15 1997  Doug Evans  <dje@canuck.cygnus.com>

        * run.c: Undo last exec_bfd patch.
        (main): Only pass -E ifdef SIM_HAVE_BIENDIAN.

Wed Apr 23 17:54:27 1997  Mike Meissner  <meissner@cygnus.com>

        * run.c (exec_bfd): Add back in.
        (main): Set exec_bfd.

Tue Apr 22 14:43:46 1997  Doug Evans  <dje@canuck.cygnus.com>

        * sim-load.c (sim_load_file): #include <stdio.h> for NULL.

Wed Apr 23 02:55:54 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-events.c (insert_sim_event): Call sim_io_error instead of
        less well defined engine_error.
        * sim-core.c: Ditto.

Tue Apr 22 08:48:16 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * Make-common.in:  Change clean targets to use :: so that other
        Makefiles can have their own clean targets.
        * sim-load.c (xprintf eprintf):  Use ANSI_PROTOTYPES instead of
        __STDC__ to control use of stdarg vs. varargs syntax.  Some
        systems can't use __STDC__, but require stdarg.

Fri Apr 18 11:14:43 1997  Doug Evans  <dje@canuck.cygnus.com>

        * sim-options.c (standard_options): Add --endian.
        (standard_option_handler): Likewise.

        * nrun.c: #include <signal.h>.
        (main, cntrl_c): Wrap calls to sim_resume in a SIGINT
        handler that calls sim_stop ().

Fri Apr 18 13:11:36 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * run.c (main, cntrl_c): Wrap calls to sim_resume in a SIGINT
        handler that calls sim_stop ().  Simulators may still be
        establishing their own handler.

        * sim-events.c (sim_events_poll): Rename from
        sim_events_at_large_int.  Poll IO.

        * sim-io.c (sim_io_poll_quit): New function - pass on a polling
        request.

        * callback.c (os_poll_quit): New function poll for quit signal
        where needed.
        (default_callback): Include magic number.

Thu Apr 17 02:25:11 1997  Doug Evans  <dje@canuck.cygnus.com>

        * aclocal.m4: Check for headers time.h, sys/time.h, sys/resource.h.
        Check for functions getrusage, time.
        * sim-basics.h (SIM_ELAPSED_TIME): New typedef.
        (sim_elapsed_time_get, sim_elapsed_time_since): Add prototypes.
        * sim-utils.c: #include time.h, sys/time.h, sys/resource.h if able.
        (sim_elapsed_time_get, sim_elapsed_time_since): New functions.

        * sim-utils.c (sim_copy_argv, sim_analyze_program): New functions.

        * sim-options.c, sim-options.h: New files.
        * sim-config.h (WITH_DEBUG): Provide default value of zero.
        * Make-common.in (nrun.o): Add rules for.
        * nrun.c: New file.

        * run.c (main): Check return value of sim_open.

        * Make-common.in (sim-options.o, sim-load.o, sim-trace.o): Add rules.
        (sim_main_headers): Add sim-trace.h.
        * run.c (exec_bfd, target_byte_order): Delete.
        (main): Pass -E <endian> to sim_open.  Delete code to load sections,
        call sim_load instead.  Check return code of sim_create_inferior.
        * sim-base.h (CURRENT_STATE): Define.
        (sim_state_base): Make typedef.  New members options, prog_argv,
        prog_bfd, text_{section,start,end}, start_addr, simcache_size,
        mem_size, memory [+ corresponding access macros].
        (sim_cpu_base): New typedef.
        * sim-trace.h: New file.
        * sim-trace.c: New file.
        * sim-basics.h: #include it.
        * sim-load.c: New file.

Tue Apr 15 15:10:13 1997  Ian Lance Taylor  <ian@cygnus.com>

        * Make-common.in (INSTALL): Set to @INSTALL@.
        (INSTALL_XFORM, INSTALL_XFORM1): Remove.
        (install-common): Depend upon installdirs.  Use
        $(program_transform_name) directly, rather than using
        $(INSTALL_XFORM).
        (installdirs): New target.
        * Makefile.in (INSTALL): Set to @INSTALL@.
        (INSTALL_XFORM, INSTALL_XFORM1): Remove.
        (install-man): Depend upon installdirs.  Use
        $(program_transform_name) directly, rather than using
        $(INSTALL_XFORM).
        (installdirs): New target.

Tue Apr 15 15:08:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * sim-assert.h (SIM_ASSERT, ASSERT): Allow these macros to
        be overriden.

Wed Apr  9 16:06:44 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-basics.h: Only bring in config.h and tconfig.h if
        HAVE_CONFIG_H.

Mon Apr  7 11:39:45 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-config.h (WITH_TARGET_WORD_MSB): New Macro. Define the bit
        numbering convention of the target.
        * sim-config.c (print_sim_config): Print WITH_TARGET_WORD_BITSIZE
        and WITH_TARGET_WORD_MSB.
        (sim_config): When possible, check for consistency with bitsize
        and msb.

        * sim-bits.h: Allow MSB to be other than zero.
        * sim-bits.c: Ditto.
        * sim-n-bits.h: Ditto.
        
        * sim-bits.h (MSMASK*): New macros - converce to LSMASK*.
        * sim-n-bits.h (MSMASKEDn): Ditto.

Mon Apr 14 16:29:21 1997  Ian Lance Taylor  <ian@cygnus.com>

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

Mon Apr  7 10:46:38 1997  Doug Evans  <dje@canuck.cygnus.com>

        * sim-base.h (sim_state_base): Move `magic' to end of struct.

Mon Apr  7 15:53:21 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * run.c (main): Check that a program to run was specified.

Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * aclocal.m4 (AC_TYPE_SIGNAL): Add check.

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

Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>

        * sim-endian.h: Move host {LITTLE,BIG}_ENDIAN support from here,
        * sim-config.h: To here.

        * Make-common.in (SIM_EXTRA_DEPS): New config var.
        (sim_main_headers): Define.
        (sim-*.o): Depend on $(SIM_EXTRA_DEPS).
start-sanitize-d30v
        (BUILT_SRC_FROM_COMMON): Move here from ../d30v/Makefile.in.
end-sanitize-d30v
        (clean): Use it.
        (sim-utils.o): Add rule for.
        * sim-utils.o: New file.
        * sim-basics.h: #include sim-base.h.
        (zalloc): Make argument unsigned long.
        * sim-base.h: New file.
        * sim-inline.h (SIM_IO support): Delete.
        * sim-io.h: Delete inline support.
        * sim-io.c: Likewise.  sim-state.h renamed to sim-main.h.
        * sim-config.c: sim-state.h renamed to sim-main.h.
        * sim-core.c: Likewise.
        * sim-events.c: Likewise.

        * run.c (main): Pass SIM_OPEN_STANDALONE to sim_open.

        * aclocal.m4: Check for stdlib.h, string.h, strings.h, unistd.h.
        (sim-debug): Allow arguments.  Define WITH_DEBUG in addition to
        -DDEBUG.
        * configure: Regenerated to track ../common/aclocal.m4 changes.

Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>

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

Wed Apr  2 11:08:11 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-config.h (WITH_ALIGNMENT, WITH_FLOATING_POINT,
        WITH_XOR_ENDIAN, WITH_SMP, WITH_RESERVED_BITS): Assume that these
        are defined by the configure.

        * aclocal.m4 (sim-stdio): Add option stdio from ../ppc configure.
        
        * aclocal.m4 (floating-point, xor-endian, alignment, smp,
        reserved-bits): Always define.
        
        * sim-config.h, sim-config.c (sim_config): New function - and new
        file - co-ordinate the setting/checking of the common simulator
        configuration options.

        * Make-common.in (sim-config.o): Add rule.

Fri Mar 28 15:32:00 1997  Mike Meissner  <meissner@cygnus.com>

        * callback.c (os_{,e}vprintf_filtered): Change stdarg type to
        va_list from void *, since va_list might not be a pointer type.

Mon Mar 24 15:27:12 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-n-endian.h (offset_N): Correct assertion - word and sub word
        in wrong order.
        (offset_N): Correct computation of LE offset.

        * sim-io.c (sim_io_error): Include a new line when reporting
        errors.

        * sim-assert.h (SIM_FILTER_PATH): Out by one when locating last
        `/'.

Thu Mar 20 22:31:06 1997  Jeffrey A Law  (law@cygnus.com)

        * run.c: Include alloca-conf.h.

        * callback.c (os_evprintf_filtered): Fix typo.

Fri Mar 21 13:36:20 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * run.c (string.h, strings.h, stdlib.h): Include.

        * sim-events.c (sim_events_tick): Recent cleanup failed to return
        0 when nothing pending.

        * run.c (sim_size, sim_trace): Plicate GCC - these two functions
        will soon be going away.
        (getopt): Plicate GCC.

        * sim-endian.c (sim-io.h): Plicate GCC.
        * sim-bits.c (sim-io.h): Ditto.
        * sim-n-bits.h (ROTn): Ditto.

        * sim-io.c (sim_io_error): Correct check for NULL.

        * sim-assert.h (SIM_FILTER_PATH): Separate out the code filtering
        the __FILE__.
        * sim-events.c: Use SIM_FILTER_PATH to filter out the filename
        path.

Wed Mar 19 01:12:06 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * aclocal.m4 (SIM_AC_OPTION_*: Move so that they are outside of
        SIM_AC_COMMON - SIM_AC_COMMON was gobling arguments.

Tue Mar 18 20:48:12 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-alu.h: Include sim-xcat.h.
        
Tue Mar 18 13:58:18 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * Make-common.in (sim-bits.c, sim-core.c, sim-endian.c,
        sim-events.c, sim-inline.c, sim-io.c): Define rules for building
        these.

        * sim-events.c (sim_events_at_large_int): New function.  Just
        schedules an event every large-int ticks.
        (sim_events_init): Call.
        (sim_events_tick, sim_events_process): Move async handing to
        sim_events_process.  Move timer decrement so that it occures after
        events have been processed.
        
        * sim-basics.h (struct _engine): Remove declaration.

        * sim-events.h, sim-events.c: Rename type to sim_events.  Prefix
        everything with same.  Rename global struct to SIM_DESC.
        * sim-core.h, sim-core.c, sim-n-core.c: Ditto for sim_core.
        * sim-io.h, sim-io.c: Ditto.
        
        * sim-assert.h: New file. Optional assertion checking macros.
        * sim-io.c (sim_io_error): Make just this function tolerant to
        null pointers.
        
        * sim-xcat.h: New file. Define concatenate macros.
        * sim-basics.h (XCONCAT*): Move to sim-xcat.h.
        * sim-n-core.h, sim-n-bits.h, sim-n-endian.h: Explicitly include
        concat macros.
        

Tue Mar 18 12:44:55 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-bits.h (LSMASK): New macro. Create mask of LS bits.

Mon Mar 17 18:10:05 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-inline.h: Add definitions for sim-types.
        (ALL_BY_MODULE): New macro, encapsulate full inlining by the
        module.

Mon Mar 17 15:38:27 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
        
        * sim-events.h: Remove defunct reference to callback struct.

Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * configure: Re-generate.

Mon Mar 17 15:04:47 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * Make-common.in (CSEARCH): Do not include the gdb directory in
        the search path.

Mon Mar 17 13:16:26 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * Make-common.in (SIM_ENDIAN, SIM_HOSTENDIAN, SIM_INLINE,
        SIM_WARNING): Drop, requiring the simulator specific Makefile.in
        to explicitly incorporate these.

        * aclocal.m4 (--enable-sim-alignment); New option. Strongly
        specify the alignment restrictions of the target architecture -
        without this option all alignment restrictions are accomodated.
        (--enable-sim-assert): New option.  Conditionally compile in
        assertion statements.
        (--enable-sim-float): New option. Strongly specify the target's
        floating point support.
        (--enable-sim-hardware): New option.  Specify the hardware devices
        included in the simulation.
        (--enable-sim-packages): New option.  Specify the hardware
        packages included in the simulation.
        (--enable-sim-regparm): New option.  Specify that parameters be
        passed in registers instead of on the stack.
        (--enable-sim-reserved-bits): New option. Specify that reserved
        bits within an instruction are are correctly set.
        (--enable-sim-smp): New option. Specify the level of SMP support
        to be included in the simulator.
        (--enable-sim-stdcall): New option.  Specify an alternative
        function call convention.
        (--enable-sim-xor-endian): New option.  Configure xor-endian
        support used by some targets to implement bi-endian support.
        
Fri Mar 14 19:51:21 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * aclocal.m4 (--enable-sim-hostendian): New option.  Allow the
        host endianness to be overridden.
        (--enable-sim-endian): Allow the target platform's byte order
        to be overridden.
        (--enable-sim-inline): Control the inlining of common components.
        (--enable-sim-bswap): For compatibility, also define WITH_BSWAP.
        (--enable-sim-warnings): Enable additional GCC compiler checks.
        * Make-common.in (SIM_ENDIAN, SIM_HOSTENDIAN, SIM_INLINE,
        SIM_WARNINGS): Add.
        
        * sim-n-core.h, sim-n-bits.h, sim-n-endian.h: Rename from
        sim-*-n.h so that the names are uniq on dos machines
        * sim-core.c, sim-bits.c, sim-endian.c: Update.
        
Thu Mar 13 12:32:42 1997  Doug Evans  <dje@canuck.cygnus.com>

        * run.c: #include "libiberty.h".
        (main): New locals sd,no_args,sim_argv.
        Run buildargv on -a option.  Pass argv to sim_open, argv[0]
        is program name.  Update call to sim_set_callbacks.
        Record result of sim_open, pass to other sim_foo routines.

Thu Mar 13 10:24:05 1997  Michael Meissner  <meissner@cygnus.com>

        * callback.c (os_printf_filtered): Do not call exit(1) or print a
        final newline.

Thu Mar  6 15:50:28 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * callback.c: Add os_flush_stdout and vprintf_filtered callbacks.
        Route stdout through buffered IO.

        * callback.c: Add os_flush_stderr, os_write_stderr,
        os_evprintf_filtered functions to route error output through
        stderr.
        
        * sim-io.h, sim-io.c (sim_io_flush_stderr, sim_io_flush_stdout):
        Correct return type - should be void.

Fri Mar  7 20:14:37 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-basics.h: Clean up.  Many macro's moved to sim-inline.h.

        * sim-config.h: Ditto.  For some options - eg WITH_DEVICES - do
        not provide a default value as undefined indicates disable code.

Thu Mar  6 15:50:28 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-core.h, sim-core-n.h, sim-core.c: Borrow code from ppc
        directory.
        * sim-events.h, sim-events.c: Ditto.
        * sim-io.h, sim-io.c: Ditto.
        
Tue Mar  4 09:35:56 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
        
        * sim-alu.h (ALU_SUB_CA, ALU*_SUB_CA): New alu operation.

        * sim-bits.h, sim-bits-n.h, sim-bits.c (LSMASKED*): New macro's
        extract the tail or least signifiant bits from an integer of the
        specified size.
        
        * sim-bits.h, sim-bits.c: Clean up conditionally compiled #if
        WITH_TARGET_BITSIZE so that the compilation will fail when an
        unsupported bitsize value is defined.

        (INSERTED*): Convert to functions.
        (EXTRACTED*): Ditto.
        
        (SIGN_EXTEND, SEXT): Change to more terse name.
        
Tue Mar  4 09:35:56 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-inline.h: Allow explicit control over which .c files will be
        included by their header.

        * sim-inline.h: Allow explicit control over which .c files use the
        alternative - REGPARM - parameter passing mechanism.
        
        * sim-inline.h, sim-inline.c: Don't attempt to include any of
        icache.c, idecode.c, semantics.c or support.c.  Those names are
        not generally applicable.
        
Thu Feb 27 10:17:23 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-bits.c, sim-bits-n.h (new): Split sim-bits.c into two parts
        in a fashion similar to sim-endian-n.

        * sim-endian.h: (H_word, L_word, AL_*, VL_*): Extend to include
        both value and address macro's.

Tue Feb 25 18:51:57 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

        * sim-alu.h (ALU16_BEGIN, ALU16_SET, ...): Fill in.

        * sim-endian.h (L_word, H_word): Replace MS2W_4, LS2W_4 with more
        generic L_word, H_word macro's.

Thu Feb 20 18:36:55 1997  Andrew Cagney  <cagney@critters.cygnus.com>

        * sim-basics.h: Borrow code from ppc directory.
        * sim-bits.c: Ditto.
        * sim-bits.h: Ditto.
        * sim-config.h: Ditto.
        * sim-endian-n.h: Ditto.
        * sim-endian.c: Ditto.
        * sim-endian.h: Ditto.
        * sim-inline.c: Ditto.
        * sim-inline.h: Ditto.
        * sim-types.h: Ditto.

Wed Feb 19 12:40:50 1997  Andrew Cagney  <cagney@critters.cygnus.com>

        * sim-alu.h (ALU_SET16, ALU_SET32, ALU_SET64, etc): Make available
        all the ALU size alternatives and then auto-configure a default.
        
        * sim-alu.h: Copy ppc/idecode_expression.h.

Mon Feb 17 10:44:18 1997  Andrew Cagney  <cagney@critters.cygnus.com>

        * bits.h, bits.c (SIGN_EXTEND32, SIGN_EXTEND64): New functions,
        sign extend a bit within a value.

        * sim-endian.h, sim-endian-n.h (offset_N): New functions - return
        a pointer into the middle of a host word.
        * sim-endian.h (MS2W_4, LS2W_4): Use this function.
        
Tue Feb 11 13:46:49 1997  Michael Meissner  <meissner@tiktok.cygnus.com>

        * callback.c: If HAVE_CONFIG_H is defined, include config.h from
        autoconf.  If HAVE_UNISTD_H is defined, include unistd.h to get
        appropriate definitions of read, write, etc.  Add prototype for
        system.

Tue Feb  4 13:24:44 1997  Doug Evans  <dje@canuck.cygnus.com>

        * Makefile.in (libcommon.a): Delete.
        (callback.o,targ-map.o): Delete, moved to Make-common.in.
        (gentmap,targ-vals.h,targ-map.c): Likewise.
        (run-autoconf): Delete.
        * aclocal.m4 (SIM_AC_OUTPUT): Redo creation of Makefile.
        (common makefile fragment): Moved back into ...
        * Make-common.in: Resurrect.
        * configure.in (AC_LINK_FILES): Delete, unnecessary now.
        * configure: Regenerated.

Fri Jan 31 07:16:49 1997  Doug Evans  <dje@canuck.cygnus.com>

        * aclocal.m4 (SIM_AC_COMMON): Move COMMON_MAKEFILE_FRAG from here.
        (SIM_AC_OUTPUT): To here.

Fri Jan 24 10:37:17 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * aclocal.m4 (COMMON_MAKEFILE_FRAG):  Quote a couple of $'s in
        comments and single quotes.  Fixes a problem found on hpux.

Thu Jan 23 13:35:03 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * aclocal.m4:  Remove Make-common.in from dependencies.
        * (distclean):  Remove targ-vals.def.

        * aclocal.m4 (SIM_AC_COMMON):  Move contents of Make-common.in
        into here.  Makes insertion into makefiles easier.  Also, change
        the way that callback.o, gentmap, targ-vals.h, targ-map.c,
        targ-map.o, and run are built.  They are now built in the
        individual simulator directories, taking sources from ../common as
        necessary.  This replaces the merging of libcommon.a into
        linsim.a, which was problematic for the WinGDB build process.
        * run.c:  Include config.h from . instead of ../common.
        * Make-common.in:  Remove.  It's no longer necessary.

Mon Dec 16 15:02:33 1996  Ian Lance Taylor  <ian@cygnus.com>

        * Make-common.in (ALL_CLAGS): Put CFLAGS at the end.
        (.c.o): Put $(ALL_CFLAGS) before the file being compiled.

Wed Dec 11 11:30:58 1996  Jim Wilson  <wilson@cygnus.com>

        * run.c (main): Set target_byte_order before call to sim_open.

Sun Dec  8 18:22:06 1996  Doug Evans  <dje@canuck.cygnus.com>

        * callback.c: #include <stdlib.h>
        (os_error): New function.
        (default_callback): Add os_error.

Mon Nov 25 19:44:35 1996  Doug Evans  <dje@canuck.cygnus.com>

        * Make-common.in (Makefile): Set CONFIG_HEADERS="".
        * aclocal.m4: Mark the fact that --enable-sim-bswap isn't host
        specific.
        (SIM_AC_OUTPUT): Don't build Makefile if CONFIG_FILES="".

Wed Nov 20 01:11:04 1996  Doug Evans  <dje@canuck.cygnus.com>

        * run.c: #include ../common/config.h, tconfig.h.
        (myname): New static global.
        (main): Recognize new options -a, -c.  Also recognize -h if h8/300.
        Only process -c ifdef SIM_HAVE_SIMCACHE.
        Only process -p/-s ifdef SIM_HAVE_PROFILE.
        Parse program name from argv[0] and use in error messages.
        Pass sim_args to sim_open.  Pass prog_args to sim_create_inferior.
        Add support for incomplete h8/300 termination indicators.
        (usage): Make more verbose.
        * aclocal.m4,config.in,tconfig.in,configure.in,configure: New files.
        * Makefile.in,Make-common.in,callback.c: New files.
        * nltvals.def,gentmap.c,gentvals.sh: New files.

Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>   

        * run.c: Include stdarg.h if __STDC__.

Tue Oct 15 11:16:31 1996  Jeffrey A Law  (law@cygnus.com)

        * run.c (main): Don't print out anything if the signal
        number is zero (ie no signal).

Tue Oct 15 11:20:44 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

        * run.c (main): Print out if the program raised a signal.

Wed Sep 18 09:52:14 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

        * run.c (exec_bfd): Rename from sim_bfd, to use the gdb name.
        (main): Ditto.

Tue Sep 17 11:04:50 1996  James G. Smith  <jsmith@cygnus.co.uk>

        * run.c (main): Explicitly cast malloc() parameter.

Thu Sep 12 11:27:21 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

        * run.c (sim_bfd): New global to hold the bfd pointer for the
        executable.
        (main): Initialize sim_bfd.

Fri Dec 15 16:27:49 1995  Ian Lance Taylor  <ian@cygnus.com>

        * run.c (main): Use new bfd_big_endian macro.

Wed Nov  8 15:49:49 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>

        * run.c (main): Removed SH specific comments, so source is
        generic. Also updated to only load relevant sections. Moved
        sim_open() to after callback attach (to match GDB).

        * run.1: Removed SH specific comments.

Sat Oct 21 12:31:01 1995  Jim Wilson  <wilson@chestnut.cygnus.com>

        * run.c (main): Always return sigrc at end.

Tue Oct 10 12:03:13 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

        * run.c (main): Print error diagnostic and exit if bfd_openr() or
        bfd_check_format() fails.

Thu Sep 28 15:40:36 1995  steve chamberlain  <sac@slash.cygnus.com>

        * run.c, run.1: From sh directory.