Work in a cross compile environment

3 files changed, 494 insertions, 2372 deletions

diff --git a/sim/ppc/ChangeLog b/sim/ppc/ChangeLog
index cc739ea..83984fd 100644
--- a/sim/ppc/ChangeLog
+++ b/sim/ppc/ChangeLog
@@ -1,24 +1,27 @@
-Thu Apr  4 15:17:22 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
+Tue Apr 30 18:46:05 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 
-	* INSTALL: Fix some long lines and remove x86 specific options in
-	the examples.
-
-Sun Mar 31 15:47:33 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>
-
-	* INSTALL: Update to reflect gdb-4.16.
-
-	* RUN: Update to reflect gdb-4.16.  Review notes on building a BSD
-	runtime environment.
+	* configure.in (--enable-hostendian): Rework so the default uses
+	the AC_C_BIGENDIAN results.  Only run AC_C_BIGENDIAN if not cross
+	compiling.
+	* configure: Regenerate.
+	
+	* sim-endian.h: Add more tests for host endian to support more
+	platforms in a cross compilation environment.
 
-	* README: Point out copyright status of simulator in introduction.
+Wed Apr 17 14:38:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 
-Fri Mar 29 12:17:58 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
+	* hw_pal.c ({scan,write}_hw_pal): If WITH_STDIO == DO_USE_STDIO,
+	use stdio, instead of unpended read/printf_filtered.
+	(hw_pal_instance_write_callback): If WITH_STDIO == DO_USE_STDIO,
+	flush stdout after writing the characters.
 
 	* options.c (print_options): Print out WITH_STDIO.
 
 	* Makefile.in (STDIO_CFLAGS): Pass on result of @sim_stdio@
 	configuration variable.
 	(CONFIG_CFLAGS): Include STDIO_CFLAGS.
+	(hw.{c,h}): Allow for source dir != build dir, and for HW_SRC
+	files to contain directory pieces.
 
 	* std-config.h (DO{,NT}_USE_STDIO): New flags for whether we
 	should use stdio for console input.
@@ -28,2199 +31,233 @@ Fri Mar 29 12:17:58 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 	whether stdio is used for console I/O.
 	* configure: Regenerate.
 
-	* device_table.c (console_use_stdio): New static variable set from
-	WITH_STDIO.
-	(scan_console): If console_use_stdio, use getchar to read byte
-	instead of doing polling I/O.
-	(write_console): If console_use_stdio, write byte with putchar.
-	(console_io_write_buffer_callback): If console_use_stdio, fflush
-	stdout.
-	(console_instance_write_callback): Ditto.
-	(console_instance_read_callback): If console_use_stdio, use fgets
-	to read line.
-
-Fri Mar 29 12:17:58 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>
-
-	* emul_bugapi.c (_os_emul_data): Add fields for output, input.
-	(emul_bugapi_create): Create input, output from /chosen/stdin and
-	/chosen/stdout.
-	(emul_bugapi_do_{read,write}): Switch to use device_instance
-	interface.
-	(emul_bugapi_instruction_call): Change calls to
-	emul_bugapi_do_{read,write} to pass device instance argument.
-
-Wed Feb 28 00:43:07 1996  Andrew Cagney - aka Noid  <cagney@highland.com.au>
-
-	* Makefile.in (corefile.o): missing dependency on device_table.h
-        etc.
-
-Tue Mar 26 14:57:58 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* igen.c (idecode_switch_end): Fix 2/26 change so that an extra
-	default is not written out if a default was already written.
-
-	* psim.c (psim_{read,write}_register): Use sizeof unsigned_8 to
-	size cooked_buf, not sizeof natural_word, since floating point
-	registers are 8 bytes.
-
-Thu Mar 21 00:06:09 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>
-
-        * main.c (error): Be careful to not try to print out statistics
-        when the simulation was never created.
-
-Thu Mar  7 19:53:49 1996  Michael Meissner  <meissner@cygnus.com>
-
-	* emul_netbsd.c: Only include sys/mount.h if HAVE_SYS_MOUNT_H is
-	defined.
-	* configure.in: Test for sys/mount.h.
-	* configure,config.in: Regenerate.
-
-Mon Feb 26 21:11:20 1996  Andrew Cagney - aka Noid  <cagney@highland.com.au>
-
-        * igen.c (idecode_switch_end): Output a default entry when the
-        switch statement is perfect.  Firstly stops GCC complaining about
-        an incomplete switch and secondly it will be eliminated by a good
-        compiler any way.
-
-Thu Feb 22 22:48:57 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* README, RUN, INSTALL: Update to reflect announcement
-	* psim: PSIM 1.0.1 released
-
-Thu Feb 22 14:01:56 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* emul_bugapi.c (emul_bugapi_do_read): New function to handle
-	reads.
-	(emul_bugapi_instruction_call): Add support for .INCHR/.INLN
-	system calls.
-
-	* emul_bugapi.c (emul_bugapi_do_write): Call flush_stdoutput.
-	* emul_netbsd.c (do_write): Call flush_stdoutput.
-
-	* main.c (flush_stdoutput): Do fflush (stdout).
-	* sim_calls.c (flush_stdoutput): Do gdb_flush (gdb_stdout);
-	* sim_callbacks.h (flush_stdoutput): Declare.
-
-Wed Feb 21 10:39:35 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* emul_bugapi.c (bug_mapping): New structure to map bug system
-	call numbers to a string.
-	(toplevel): Add remaining bugapi system calls.
-	(emul_bugapi_instruction_name): Map bugapi system call number to a
-	string.
-	(emul_bugapi_do_write): Common code to process write system calls.
-	(emul_bugapi_instruction_call): If os-emul tracing is on, trace
-	the system call.  Use the name to print unknown system call.
-	Correct implementation of _OUTLN.  Add support for _OUTSTR and
-	_PCRLR system calls.
-
-Wed Feb 21 17:07:27 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* NOTES: New file.  Ramblings on why things were done they way
- 	they were.
-	
-	* psim.c (psim_options): Didn't enter the model value into the
- 	device tree as a string.
-	
-  	* cpu.c (cpu_synchronize_context): Wrong test for conditional
- 	flush of cache.
-
-	* emul_generic.c (emul_add_tree_hardware): reg value didn't match
- 	bus address.
-	
-	* ppc-opcode-flat: new file. Generate an instruction decode
- 	function like ppc-opcode-complex but use switch statements.
-
-	* INSTALL: document new opcode file, add example configurations.
-
-Tue Feb 20 18:42:31 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* main.c (main): rename psim instance (system) to simulation and
- 	make global.
-	* main.c (error): print out performance even when an error occures.
-
-	* emul_bugapi.c (emul_bugapi_create): Fix argument passing.
-
-	* emul_generic.c (emul_add_tree_hardware): Move hardware devices
- 	to 0x80000000 from 0x400000.
-
-Mon Feb 19 22:54:40 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* ppc-instructions (TLB Invalidate Entry, TLB Invalidate ALL):
-        Implement by passing on request to all processors.
-	* ppc-instructions (TLB Synchronize): Implement as empty, processor
-	tlb's are always in sync.
-
-	* cpu.c (cpu_page_tlb_invalidate_all): New function.  Pass on TLB
-        invalidate request to processors VM sub-system.
-	* cpu.c (cpu_page_tlb_invalidate_entry): Ditto.
-
-	* vm.c (vm_page_tlb_invalidate_all): New function. Mark all page
-        TLB entries as invalid.
-	* vm.c (vm_page_tlb_invalidate_entry): New function. Ditt but only
-	invalidate one TLB entry.
-
-	* psim.c (psim_init): Invalidate TLB's before (re)starting.
-
-Mon Feb 19 21:25:56 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* emul_generic.c (emul_add_tree_options): Add argument
-        oea_interrupt_prefix (0 or 1) that specifies the prefix MSR[IP]
-        and hence the location of the interrupt vectors.  Add this to the
-        device tree.
-
-	* emul_chirp.c (emul_chirp_create): Allow configuration of
-        floating-point and interrupt prefix (default 0) using the above.
-
-	* emul_netbsd.c (emul_netbsd_create): Pass dummy arg for
-        interrupt-prefix.
-
-	* emul_bugapi.c (emul_bugapi_create): Allow configuration of
-        interrupt prefix (default 1) and configure interrupt table traps
-        accordingly.
-
-	* emul_generic.c (emul_add_tree_hardware): Include a small eeprom
-        in the list of devices.
-
-	* device_table.c: For moment fake eeprom device by a memory
-        device.  In future will need a proper eeprom device.
-
-Tue Feb 20 17:01:26 1996  J.T. Conklin  <jtc@rtl.cygnus.com>
-
-	* config.in: Regenerated.
-
-Fri Feb 16 10:42:27 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* psim.c: Include options.h so print_options is declared.
-
-Thu Feb 15 18:10:13 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* emul_netbsd.c (toplevel): Do not include sys/resource.h if the
-	system doesn't have it, and turn off getrusage processing.
-	(write_rusage): #ifdef out if we don't have getrusage.
-	(do_getrusage): Define as 0 if we don't have getrusage.
-
-Wed Feb 14 17:38:12 1996  J. T. Conklin  <jtc@cygnus.com>
-
-	* configure.in (AC_HEADER_DIRENT): Add, so that we can figure out
-	where the directory functions are declared.
-	* configure: Regenerate
-
-	* emul_netbsd.c: Use the macros defined by configure to find the
-	appropriate directory functions.
-
-Thu Feb  8 00:53:13 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* configure.in (xor_endian): Trace setting of xor-endian flag.
-
-Wed Feb  7 18:20:56 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* psim.c (psim_usage): Extend documentation.
-
-	* ppc-instructions (model-print): fix typo.
-
-Sun Feb  4 23:58:02 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* configure.in (with-smp): Default configuration allow up to
-	five processors (but enable only one).
-
-	* emul_bugapi.c (emul_bugapi_create): If floating-point is
-	allowed, enable the floating point instruction set in the
-	msr.
-
-Tue Jan 30 22:52:32 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* emul_chirp.c (chirp_emul_seek, chirp_emul_read,
-        chirp_emul_write): Tolerate invalid ihandles.
-
-	* device.c (device_instance_create, device_instance_delete):
-	init/delete instance name
-
-	* emul_chirp.c (emul_chirp_instruction_call): Read the nr args and
-        returns when determining the service.
-
-	* emul_chirp.c (chirp_read_t2h_args): Allow variable number of
-        args for the method "call-method".
-
-	* emul_chirp.c (chirp_emul_getprop): Tolerate a n_returns of zero
-        - should be one. Some OpenBoot code doesn't pass correct arg.
-
-	* emul_chirp.c (chirp_emul_getprop): Trace more property types.
-
-Tue Jan 30 19:12:29 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* RUN: New file. Describe how to run PSIM
-	* INSTALL: New file. Describe how to install PSIM
-	* README: New file. Overview PSIM.
-	* BUGS: New file. Briefly discuss bugs and limitations
-	
-Wed Jan 24 20:28:08 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* emul_bugapi.c (OEA_START_ADDRESS): Put it back to 0x100000,
-        wasn't correctly using GLD.
-
-Mon Jan 22 22:44:13 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* emul_generic.c (emul_add_tree_options): Make default number of
-	active processors 1 (even when SMP enabled).
-
-Mon Jan 22 22:37:34 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* device_table.c (icu_io_read_buffer_callback): Add extra register
-        (at addr + 4) that returns number of processors.
-
-	* emul_generic.c (emul_add_tree_hardware): Update device node to
-        match.
-
-Mon Jan 22 22:00:42 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* emul_bugapi.c (OEA_START_ADDRESS): Change to 0x4000 so that it
-        matches gas-960116/ld.
-
-Fri Jan 19 00:32:27 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* psim-960119 released - psim-1.0b01.
-
-Fri Jan 19 00:32:27 1996  Andrew Cagney - aka Noid  <cagney@highland.au.com>
-
-	* psim.c (psim_create): Re-order so that all options are set
-        before the CPU's are created.  Was breaking mon_create();
-
-	* psim.c (psim_create): Tidy up conflicting configuration errors.
-
-	* debug.c: Add missing print-info entry to trace table.
-
-	* os_emul.c (os_emul_create): Fix `-e' option. Was looking under
-        wrong name.
-
-	* psim.c (psim_options): Fix `-r' option. Was entering under wrong
-        name.
-
-Thu Jan 18 20:33:48 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* vm.c (om_unpack_bats): Fix checking of bat bits.
-
-	* emul_chirp.c (emul_chirp_create): Store address of OB in memory
- 	in the os_emul_data structure.
-
-	* emul_bugapi.c (emul_bugapi_create): Store the address of the
- 	bugapi code (in main memory) in the os_emul_data structure.
-
-Thu Jan 18 01:14:55 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* vm.c (om_translate_effective_to_real): Fix trace output.
-
-Wed Jan 17 22:21:55 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* device_table.c (generic_device_init_address): Create memory from
-        information obtained from `reg' property.
-	* device_table.c (vm_init_address_callback): Use information
-        obtained from properties.
-	* emul_netbsd.c (emul_netbsd_create): Update to create device and
-        property entries to match
-
-Tue Jan 16 09:50:53 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* idecode_expression.h (ALU_END): Add ITRACE of the result.
-
-	* ppc-instructions (Equivalent): Enable this instruction.
-	(Add to Minus One Extended): Ditto.
-	(Subtract from Minus One Extended): Ditto.
-	(Add/And/Or/Xor Immediate): Add alu trace of result.
-	(Add/And/Or/Xor Shifted Immediate): Ditto.
-	(And/Or/Equivalent/Nand/Nor): Ditto.
-	(And/Or with Complement): Ditto.
-	(Extend Sign Byte/Half Word): Ditto.
-	(Count Leading Zeros): Ditto.
-	(Shift Right Algerbraic Word): Ditto.
-	(Shift Right Algerbraic Word Immediate): Ditto.
-
-Tue Jan  9 15:10:27 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* emul_bugapi.c (emul_bugapi_instruction_call) : Make format type
- 	correct.
-	* emul_chirp.c (map_over_chirp_note) : Ditto
-	* emul_chirp.c (chirp_emul_test) : Ditto
-	* device_table.c (register_init): Ditto
-
-Tue Jan  9 14:16:26 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* configure.in: Make disable-sim-switch default.  Switch only
- 	useful if using --enable-sim-opcode=ppc-opcode-stupid and then
- 	only marginally so.
-
-Mon Jan  8 12:17:22 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* device_table.c (register_init): Make format type correct.
-
-Wed Jan  3 19:21:46 1996  Andrew Cagney  <cagney@highland.com.au>
-
-	* emul_bugapi.c (emul_bugapi_create): Add nodes to init the
- 	system-call trap to the emul instruction call instruction (Along
- 	with an rfi and infinate loop).
-
-	* emul_bugapi.c (emul_bugapi_instruction_call): Expand to include
- 	a few real PPC bug calls.  Test with simple hello world.
-
-Tue Jan  2 20:51:19 1996  Andrew Cagney - aka Noid  <cagney@highland.com.au>
-
-	* device.h, device.c (device_child, device_sibling): New
-        functions.  Return corresponding device value.
-
-	* emul_chirp.c (chirp_emul_child, chirp_emul_peer,
-        chirp_emul_parent): New functions - emulate corresponding OpenBoot
-        interfaces.
-
-	* device_table.c (register_init): Extend properties attached to
-        register init node to allow a specific processor's register to be
-        specified.
-
-	* emul_chirp.c (emul_chirp_create): Init SMP correctly - the
-        initial PC for all processors is an infinate loop but then, for
-        processor zero, is quickly changed to be the correct code starting
-        address.
-
-	* emul_chirp.c (emul_chirp_create): Add fake bootpath
-        et.al. properties to tree.
-
-	* emul_chirp.c (chirp_emul_getproplen): New function.  Emulate the
-        getproplen OpenBoot call.
-
-	* emul_chirp.c (emul_chirp_instruction_call): Document other
-        possible chirp emulation internal states.
-
-	* emul_chirp.c (emul_chirp_instruction_call): Trace failed lookups
- 	as well as successful ones.
-	
-	* emul_chirp.c (emul_chirp_open): New function - handle open
-        client call.
-
-	* Makefile.in (maintainer-clean): Proper rule that eliminates more
-        junk.
-
-Tue Dec 19 13:00:11 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* emul_chirp.c (chirp_emul_exit): Full out call.
-
-	* device_table.c (htab_map_page): Wasn't handling byte swap when
-	creating entries in the hash table.
-
-	* device.c (device_tree_find_node): Allow primative wild-card match
- 	of device names with the path.
-
-	FIXME: As mentioned earlier, the device stuff needs work to bring
- 	it into line with OpenBoot.  Part of this work is rewriting the
-	find_node function so that it behaves as specified in p1275.
-
-Mon Dec 18 19:58:56 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* emul_chrp.c (chirp_emul_write, chirp_emul_finddevice): add
- 	better tracing.
-
-	* emul_chrp.c: Change return type of emul functions to int.  Emul
- 	functions either return -1 or zero so unsigned was a bit
- 	dangerous.
-	
-	* inline.h (*), igen.c, dgen.c, *: Update INLINE macros so that
-        they are paramaterised with the type of the function.  Gets around
-        the problem of `static' needing to come first with `attribute'
-        comming last.  Format declarations and definitions so that emacs
-	doesn't get confused.
-
-Fri Dec 15 17:06:44 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* std-config.h (PSIM_INLINE): Add missing inline configuration
- 	control for the main loop.
-
-	* mon.c (mon_print_info): If monitoring disabled still print out
- 	the number seconds used.
-
-	* psim.c (run_until_stop): Don't monitor the cache misses when
- 	monitoring is disabled.
-
-	* configure.in (sim_mon, sim_monitor): Correct typo - sim_mon ->
- 	sim_monitor for shell variable (or should that have been the other
- 	way around?).
-
-	* vm.c (vm_synchronize_context): Fix wrong test for unsuported
- 	change in endian-mode.
-	
-	* std-config.h (WITH_REGPARM), inline.h (IDECODE_INLINE,
-	SEMANTICS_INLINE): Add -DWITH_REGPARM=<n> option.  Enables the
-	__attribute__((__regparm(WITH_REGPARM))) for some functions.
-	configure with --enable-sim-cflags="-DWITH_REGPARAM=3" (say).
-	Unfortunatly it tickles a bug (gcc?) and can't be used.
-
-Mon Dec 18 13:36:06 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* device.c (device_tree_add_device): Make trace fprintf arguments
-	type correct.
-	* device_table.c (htab_decode_hash_table): Ditto.
-	(htab_map_binary): Ditto.
-	(htab_init_callback): Ditto.
-	* vm.c (om_virtual_to_real): Ditto.
-
-Sat Dec 16 09:54:18 1995  Michael Meissner  <meissner@wogglebug.tiac.net>
-
-	* emul_netbsd.c (emul_netbsd_create): Deal with new BFD that
-	changed how big/little endian support is recorded, while remaining
-	compatible with the old BFD with #ifdefs.
-	* emul_chirp.c (emul_chirp_create): Ditto.
-	* emul_bugapi.c (emul_bugapi_create): Ditto.
-
-Fri Dec 15 15:55:56 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* std-config.h (MODEL_INLINE): Turn off INLINE_MODULE by default.
-
-	* corefile.h: Delete declarations for unknown functions.
-	* device.h: Ditto.
-	* interrupts.h: Ditto.
-	* interrupts.c: Ditto.
-
-Thu Dec 14 18:49:34 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* lf.c (lf_print_function_type): New function.  Munges a function
- 	type so that the prefix (eg INLINE...) is inserted after the type
- 	but before any `*'.
-
-	* igen.c: Change to output functions using this.
-
-Wed Dec 13 23:47:00 1995  Andrew Cagney   <cagney@highland.com.au>
-
-	FIXME: Emul CHIRP does not correctly implement the find device
- 	function.
-
-	FIXME: Emul CHIRP and device do not implement device instance
- 	operations.
-
-Wed Dec 13 23:47:00 1995  Andrew Cagney   <cagney@highland.com.au>
-
-	* options.c (options_inline): Function to output meaningful
-        description of the INLINE options.
-
-	* configure.in (inline): Replace inline magic numbers with macro
-        names. Map 1->LOCALS_INLINE and 2->ALL_INLINE.
-
-	* inline.h, inline.c: update to use inline method.
-
-	* std-config.h (CPU_INLINE), cpu.h, inline.h, inline.c: make cpu.h
-        inline always.
-
-	* std-config.h (EVENTS_INLINE): Inline events in psim.
-
-Wed Dec 13 22:01:21 1995  Andrew Cagney   <cagney@highland.com.au>
-
-	* device_table.c (htab_sum_binary): DMA binaries to correct byte
-        within a page.
-
-Tue Dec 12 22:51:18 1995  Andrew Cagney   <cagney@highland.com.au>
-
-	* psim.c (psim_merge_device_file): Change `=' to `==', was this an
-        error?
-
-Tue Dec  5 11:56:14 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* ppc-instructions (ppc_nr_mtcrf_crs, ppc_branch_conditional_name,
- 	ppc_function_unit_name): Simplify by declaring these arrays as
- 	pure and simple static (instead of STATIC_MODEL).
-
-Tue Dec  5 00:45:34 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* sim_calls.c (sim_create, sim_load), main.c (main), psim.c: Pass
-        an options device into psim_create() so that options can be merged
-        into the tree.
-
-	* device.c (*add*): Change semantics so the add functions only add
-        when the new device (or property) doesn't already exist.  This
-        allows merging of options and data.
-
-Mon Dec  4 17:12:13 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* Makefile.in (BASICS_H): Didn't include basics.h in the list of
-        header files to depend on.
-
-Mon Dec  4 17:12:13 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* std-config.h: (*_MODULE): Extend the <module>_inline macro's so
-        that they also allow control over static functions.  Rewrite
-        document to reflect this.
-
-	* std-config.h: (INLINE): Simplify definition, the above and
-        earlier changes to igen.h eliminate the need to be defensive about
-        enabling the inline of static functions.
-
-	* std-config.h: (SIM_ENDIAN_INLINE, BITS_INLINE): Document limited
-        suport for inlineing of modules for all callers.  Adjust relevant
-        macro's so that DEFAULT_INLINE will enable this.
-
-	* basics.h: Re-order #includes and definitions so that c-code for
-        basic include files does not call functions delcared in later
-        #includes.
-
-	* basics.h (__attribute__), sim_callbacks.h: Move attribute macro
-        to basics.h and add hack (include <stdio.h>) to try and bring that
-        and other possible conflicting macros into scope much earler.
-
-	* sim-endian.h,c (SIM_ENDIAN_INLINE) bits.h,c (BITS_INLINE):
-        Change to use the updated inline definitions.  If enabled
-        immediatly include the corresponding c-code so that it will inline
-        for all modules.
-
-	* inline.h, inline.c (SIM_ENDIAN_INLINE, BITS_INLINE): Remove
-        these cases, moved to module specific header files.
-
-Sat Dec  2 18:37:51 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* vm.c, vm_n.c: Fix htab code.
-
-	* vm.c (vm_data_map_read_buffer): Was using EA not RA when reading
-        the data from core.
-
-	* device.c: Fix htab create code.
-
-Fri Nov 24 23:10:09 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* bits.h, bits.c (EXTRACTED): Convert to function, fix - had &&
-        instead of &.
-
-	* sim-endian.h (SWAP_N), sim-endian-n.h, sim-endian.c: How
-        embarasing - fix yet another bug in the swap code!  Simplify
-        everything by using more functions. Add host to big-endian byte
-        swapping support.
-
-Fri Nov 24 23:10:09 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* devices.h, devices.c: delete, replaced by the files
-        device_table.[ch] and device.[ch].
-	* device_tree.h, device_tree.c: ditto
-
-	* device_table.h, device_table.c: New files.  Contain a table of
-        devices.
-
-	* device.h, device.c, Makefile.in, std-config.h (DEVICE_INLINE),
-        options.c (print_options): New files.  Define the device object
-        along with any attached properties.
-
-	* device_tree.h, device_tree.c: Update to use new device object.
-        For convenience, change the printd functions into device_tree_add
-        functions.
-
-	* psim.c (create_*_tree): Use new device_tree create functions.
-
-	* corefile.h, corefile.c corefile-n.h (core_n.h): Update to use
-        the new device.h / device_table.h interface.  Rename core_n.h to
-        corefile-n.h to be consistent with other n files.
-
-	* Makefile.in (run): add corefile-n.h to dependencies for
-        corefile.
-
-	* basics.h (device_instance), device.h, device.c, device_table.h,
-        device_table.c: Add the concept of a device instance and operators
-        on these instances - corresponds to ihandle in OpenBoot speak.
-        Don't yet implement it.
-
-Tue Nov 14 12:27:08 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* emul_generic.h, emul_generic.c (emul_syscall_enter,
- 	emul_syscall_exit): rename from emul_enter_call /
- 	emul_exit_call. As only used by emul_do_system_call simplify
- 	associated code.
-
-	* os_emul.h, os_emul.c, emul_generic.h: Correct and fill an
- 	os_emul interface.
-
-	* os_emul.c, emul_bugapi.h, emul_bugapi.c, Makefile.in: Add
- 	preliminary hooks for a kernel mode rom emulation.
-	
-	* cap.h (new), cap.c (new): Capability data base.  Some emulations
- 	pass object identifiers (capabilities?) to/from the simulated code
- 	(for instance the phandle in OpenBoot).  The cap object is able to
- 	check/map between internal and external (target program)
- 	representations of each identifier.
-	
-	* os_emul.c, emul_chirp.h, emul_chirp.c, Makefile.in: Add
- 	preliminary hooks for a kernel mode IEEE-1275 emulation.
-
-	* cpu.h, cpu.c (cpu_create, cpu_os_emulation, cpu): Add os_emul to
- 	list of arguments passed in when creating a cpu.  Grant access to
- 	the element.
-
-	* std-config.h (OS_EMUL_INLINE), options.c (print_options),
-	inline.h, inline.c: New to allow control over inline of
-	corresponding code files.
-
-	* ppc-instructions (instruction_call): Add illegal instruction to
- 	call the instruction-call emulation handler.
-	
-	* interrupts.c (system_call_interrupt): Call renamed
-        os_emul_system_call function().
-
-	* emul_netbsd.c: Update to interface to generic emulation.  Since
-        all its functions are called via a table don't worry about any
-        inline.
-
-	* emul_generic.h, emul_generic.c, spa-*(delete): Remove references
-        and code for spa, no longer to be used.
-
-	* psim.c (create_chirp_device_tree): Fill out what was previously
-        the openboot create function so that it starts to create a full
-        OpenBoot device tree.
-
-Tue Nov 28 21:48:06 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* debug.h, debug.c: pte trace is made redundant by htab trace,
-        delete it.  Add vm to list of options.  Simplify tracing output so
-        lines are not as long.
-
-Tue Nov 14 12:27:08 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* events.h, events.c (event_queue_init), psim.c (psim_init): (re)
- 	initialize the event queue.
-
-
-
-
-
-
-Tue Nov 28 13:38:26 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* sim-endian.h: Look at WORDS_BIGENDIAN to determine if the host
-	is big endian or little endian.  For SWAP_n, use htonl/htons if
-	host is little endian, not big endian and if WITH_NTOH is defined.
-
-	* configure{,.in} (--enable-sim-model-issue): Instead of defining
-	0/1, define it to be MODEL_ISSUE_{PROCESS,IGNORE}.  Add
-	AC_C_BIGENDIAN to determine if the host is big endian or not.
-	* config.in: Regenerate.
-
-	* std-config.h (WITH_MODEL_ISSUE): Default to 0.
-	(CURRENT_MODEL_ISSUE): Reference WITH_MODEL_ISSUE, and if that is
-	0, use current_model_issue.
-	(MODEL_ISSUE_{PROCESS,IGNORE}): Define as -1/1.
-
-	* psim.c (current_model_issue): New global variable.
-
-	* cpu.c (cpu_create): Use CURRENT_MODEL_ISSUE > 0 instead of
-	WITH_MODEL_ISSUE.
-	(cpu_{init,halt}): Ditto.
-	* mon.c (mon_print_info): Ditto.
-	* ppc-instructions (PPC_INSN_* macros, branch handling): Ditto.
-
-	* mon.c (mon_print_info): Print instructions/second if verbose > 0,
-	rather than > 1.
-
-	* main.c (main): Set current_model_issue to MODEL_ISSUE_PROCESS if
-	the -I switch is used.
-	* sim_calls (sim_open): Ditto.
-
-	* ppc-instructions (model support): Add support for determining
-	when we don't have enough writeback slots.  Add tracing for the
-	beginning of each cycle.
-
-Mon Nov 27 17:46:33 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* mon.c: Check for whether to include sys/types.h and sys/time.h.
-
-	* configure.in: Check for include files sys/types.h and
-	sys/time.h.
-	* configure: Regenerate.
-	* config.in: Regenerate.
-
-	* cpu.h (CONST_ATTRIBUTE): Define as __attribute__((__const__)) if
-	not already defined.
-	(cpu_system): Use CONST_ATTRIBUTE, so that when we're not inlining
-	the world, the optimizer has a fair chance of CSE'ing function
-	calls.
-	(cpu_{monitor,nr,registers,model}): Ditto.
-
-	* std-config.h (MODEL_INLINE): If not defined, define as 1 if
-	DEFAULT_INLINE is non-zero, 0 otherwise, rather than just the
-	value of DEFAULT_INLINE.
-
-Fri Nov 24 11:24:34 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* lf.h (__attribute__): If not GCC and at least 2.7.0, define as
-	nothing.
- 	(lf_printf): Add printf __attribute__, so the compiler will
-	automatically check the format string.
-
-	* configure{,.in} (--enable-sim-icache): If argument is define,
-	add -R to flags passed to igen.
-
-	* igen.c (stdlib.h): Include if the system supplies one.
-	(semantics_use_cache_struct): New global for -R flag to say
-	semantics is to use the cache structure directly rather than
-	putting the values into local variables.
-	(first_undef, last_undef): New structures to remember names to
-	#undef if -R.
-	(lf_print_c_extraction): If -R and this is semantics, emit names
-	as #defines pointing to the cache structure, rather than loading
-	the values into local variables.
-	(lf_print_c_semantic_function): If -R, #undef all of the names
-	defined in lf_print_c_extraction.
-	(main): Recognize -R.
-
-	* idecode_fields.h (SPR_*): Redefine spr_* macros as SPR_* to
-	avoid a name confict if -R passed to igen.
-
-	* ppc-instructions (mfspr, mtspr): Rename spr field to SPR.
-	(model_data): Add field to count the various # of CRs that the
-	mtcrf instruction used.
-	(model_mon_info): Return structures counting the # of CRs that the
-	mtcrf instruction used.
-	(branches, sync instructions): Do not call model functions if
-	WITH_MODEL_ISSUE is 0.
-
-	* mon.c (stdlib.h): Include if the system supplies one.
- 	(mon_sort_instruction_names): New function to sort instruction
-	names alphabetically.
-	(mon_print_info): Call qsort with mon_sort_instruction_names to
-	sort instruction names.  Don't abort if WITH_MODEL_ISSUE is 0.
-	
-	* debug.h (ITRACE): Make printf_filtered arguments type correct.
-	* idecode_expression.h (CR0_COMPARE): Ditto.
-	* psim.c (psim_read_register): Ditto.
-
-	* igen.c (lf_print_my_prefix): Use __attribute__((__unused__)) to
-	silence compiler warnings about unused automatically generated
-	variables.
-	(lf_print_c_extraction): Ditto.
-	* idecode_expression.h (FPSCR_BEGIN): Ditto.
-
-	* ppc-cache-rules: Define rules for making a bitmask for all
-	registers.
-
-	* ppc-instructions: Rewrite model specific functions to use the
-	bitmask of the register number, instead of using the register
-	pointer to get the register number, and then making the bitmask.
-
-Wed Nov 22 15:24:27 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* ppc-instructions (model_branches): Add conditional argument to
-	count the number of times each type of conditional branch is used.
-	(conditional branches): Pass B0 or -1 to model_branches.
-	(model_mon_info): Print out conditional branch counts.
-	(model-data): Add support for printing out conditional branch
-	types.
-
-Tue Nov 21 16:31:25 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* igen.c (insn_table_load_insns): Add support for model-static for
-	internal functions that should not be inlined.
-	(lf_print_c_semantic): Remove model_cleanup.
-	(gen_model_{c,h}): Ditto.
-
-	* ppc-instructions: Redo model specific support once again.  Add
-	floating point support to the model specific information.  Flesh
-	out all of the floating mutiply add/subtract instructions.  Add
-	better tracing support to the model specific information.
-
-Sun Nov 19 23:00:52 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* ppc-instructions (model data, model_busy): Rather than using a
-	bit mask for the busy units, just use a char array.  Also, only
-	support 2 function units an insn can use, rather than a loop.
-
-Fri Nov 17 14:08:08 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* table.c (table_entry_read): Move setting entry->line_nr to after
-	the model specific fields so the line numbers for the annex are
-	correct.
-
-	* cpu.c (cpu_{create,init,halt}): Check for WITH_MODEL_ISSUE
-	before calling the model functions.
-
-	* debug.c (trace_descriptor): Add trace_model support.
-	* debug.h (trace_options): Ditto.
-
-	* igen.c (gen_icache_h): Create type idecode_cache as void if not
-	caching instructions.
-	(gen_model_{c,h}): Drop model_issue support.  Add support for
-	model_cleanup.
-	(lf_print_my_prefix): Initialize a const itable_index with the
-	current index.
-	(lf_print_c_semantic): Call model_cleanup at the end of the
-	function to check for instructions that aren't supported yet by
-	the scheduling code.
-	
-	* mon.h (count_type): New type for counters.
-	* mon.c: Use count_type instead of unsigned.
-
-	* ppc-instructions: Redo scheduling code once again.  Make it all
-	inline friendly.  Instead of having general code emitted by igen,
-	go the route of having each semantic routine call the appropriate
-	module.
-
-Thu Nov 16 09:52:26 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* table.c (table_entry_read): Allow the annex to have blank lines.
-
-	* ppc-instructions: Change lines in model stuff that just have a
-	tab to just newline.  Add 601 support.  Document most instructions
-	in terms of model specific timing information.  Drop 'FUNCTION'
-	from PPC_FUNCTION_UNIT_xxx enums.  Change PPC_UNIT_UNKNOWN ->
-	PPC_UNIT_BAD.  Add TRACE(trace_tbd) for all data cache
-	instruction.s.  Signal illegal instruciton if data cache block
-	invalidate is issued from problem state.
-
-	* igen.c (max_model_fields_len): New static to keep track of the
-	max size for the model specific fields.
-	(model_c_insn): Use max_model_fields_len to size fields.
-	(insn_table_insert_insn): Set max_model_fields_len.
-	(model_table_insert): Ditto.
-	(gen_model_{c,h}): Model_issue is now called with a processor
-	argument.
-
-	* debug.c (trace_description): Add support for trace_tbd.
-
-	* mon.c (mon_issue): Pass processor argument to model_issue.
-
-	* Makefile.in: Delete all function unit support, since the newer
-	table driven model support replaces it.
-	* cpu.{c,h}: Ditto.
-	* mon.c: Ditto.
-	* inline.{c,h}: Ditto.
-	* std-config.h: Ditto.
-	* options.c: Ditto.
-	* configure{,.in}: Ditto.
-	* Makefile.in: Ditto.
-	* psim.c: Ditto.
-	* function_unit.{c,h}: Delete these now usused files.
-
-	* std-config.h (WITH_MODEL_ISSUE): Add new macro on whether to
-	trace instructions in a model specific manor.
-	* options.c (print_options): Print it out.
-	* configure{,.in}: Add --enable-sim-model-issue option.
-	* Makefile.in: Add --enable-sim-model-issue flags.
-	* igen.c (lf_print_c_semantic): Add call to mon_issue here.  Check
-	for WITH_MODEL_ISSUE.
-	* mon.c (mon_issue): Remove call to mon_issue_here.
-
-	* ppc-instructions: Move branch tracing to the actual branch
-	instructions, rather than testing it in model_issue.  Add code to
-	code successful/unsuccessful branch predictions, and the number of
-	conditional branches that fell through.
-
-Wed Nov 15 17:32:13 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* cpu.h (cpu_model): Add declaration.
-
-	* cpu.c (struct _cpu): Add model_ptr to hold model specific
-	information.
-	(cpu_model): Return the model internal pointer.
-	(cpu_{create,init,halt}): Call the appropriate model function.
-
-	* inline.c (mon.c): Move include of mon.c after model.c.
-
-	* mon.c (_cpu_mon): Add fields to count unaligned memory
-	references.
-	(mon_issue): Call model_issue, not function_unit_issue.
-	(mon_{read,write}): Count # of unaligned memory accesses.
-	(mon_print_info): Switch to calling model_mon_info and
-	model_mon_info_free instead of function_unit version.  Print out
-	number of unaligned reads/writes.
-
-	* {ppc-instructions,igen.c}: More global changes to add model
-	specific features.
-
-	* inline.{c,h}: Provide for inlining options.c.
-	* options.{c,h}: Ditto.
-	* std-config.h: Add OPTIONS_INLINE.
-
-Tue Nov 14 04:47:25 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* Makefile.in (devices.o, main.o): Update dependency.
-
-	* igen.c (gen_model_h): Use correct variable in loop.
-	(gen_model_c): Use strcmp, strcasecmp.
-	(gen_model_c): Use EXTERN_MODEL for arrays.
-	(gen_model_h): Use STATIC_MODEL for arrays.
-	(lf_print_c_semantic_function_header): Delete unused function.
-
-	* main.c (cpu.h): Include cpu.h to get model.h.
-
-	* inline.h ({EXTERN,STATIC}_MODEL): Define.
-
-Mon Nov 13 09:14:13 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* igen.c ({insn,model}_table_fields): Spell mnemonic correctly.
-	(gen_itable_h,itable_c_insn): Ditto.
-	(model support): Move model support around, add support for
-	model-data, model-internal.  Use annex field for model-macros
-	now.
-
-	* configure.in (--enable-sim-inline): If --enable-sim-inline=no,
-	also define INLINE as nothing.
-	* configure: Regenerate.
-
-	* std-config.h (INLINE): Rather than nuking INLINE, only define it
-	as __inline__ if any of the INLINE flags are non-zero.
-
-	* options.c (print_options): Print out WITH_XOR_ENDAIN.
-
-Mon Nov 13 23:03:45 1995  Andrew Cagney   <cagneyhighland.com.au>
-
-	* ppc-instructions (rfi): Add missing code.
+	* interrupts.c (external_interrupt): Declare it to be
+	INLINE_INTERRUPTS, not INLINE_CPU.
 
-	* cpu.c (cpu_get_time_base): Fix calculation of current value of
-        time base register.
+Mon Apr 15 23:30:56 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>
 
-	* ppc-spr-table (TBL, TBU): Fix TBL/TBU entries - was confusing
-        m[tf]tb with m[tf]spr.
+	* events.c (insert_event_entry): Allow events to be scheduled
+        *NOW* (at delta time 0).  Add assertions to clarify behavour of
+        event queue.
 
-	* ppc-instructions (mtspr, mfspr): Fix mttbl - wasn't storing
-        lower word.
+	* events.c (update_time_from_event): New function. Calculates the
+        number of ticks from the next event.  Use this.
 
-Mon Nov 13 21:35:37 1995  Andrew Cagney   <cagneyhighland.com.au>
-
-	* std-config.h (INLINE, STATIC_INLINE): Was being set to static
-        inline..  Only problem being that with ppc-opcode-simple this gave
-        it the chance to inline all the idecode functions with potentially
-        disasterous results on a 16mb PC.  For moment hobble INLINE.
-
-	* configure.in, std-config.h (WITH_SMP): Make that 5 processors by
-        default ...
-
-	* configure.in: Tweek flags passed to gcc for --with-sim-warnings.
-        Firstly make them errors and secondly remove the options gcc-245
-        doesn't reconize.
-
-Mon Nov 13 17:57:24 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* misc.c (zalloc), cpu.c (cpu_init), devices
- 	(console_io_read_buffer_callback, icu_io_read_buffer_callback,
- 	vm_io_read_buffer_callback), main.c (zalloc), mon.c (memset),
- 	sim_calls.c (zalloc) : replace bzero() with memset().
-
-	* emul_netbsd.c (write_direntries), psim.c (psim_read_register,
- 	psim_write_register): replace bcopy() with memcpy().
-	
-Sun Nov 12 20:55:41 1995  Andrew Cagney   <cagneyhighland.com.au>
+Sun Apr 14 21:39:45 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	* configure.in: for --disable-sim-inline (--enable-sim-inline=no),
-        force DEFAULT_INLINE to 0 rather then trusting the std
-        configuration.
+	* emul_netbsd.c (do_break): Return 0 if success (instead of
+        adjusted break).
 
-Sun Nov 12 20:55:41 1995  Andrew Cagney   <cagneyhighland.com.au>
+	* device_table.c (vm_ioctl_callback): Don't return adjusted break
+        (isn't needed).
 
-	* igen.c (lf_print_idecode_table, idecode_table_leaf): Fix
-        generation of switch entries in tables - treat the same as
-        cracking/semantic functions.
+Sun Apr 14 21:32:41 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	* igen.c (idecode_switch_end, idecode_switch_leaf): Fix generation
-        of a boolean switch statement (field zero or non-zero).
+	* device_table.h: Change type of the device ioctl so that it
+	returns an int (status).
+	* device.h (device_ioctl): Ditto.
+	* device.c (device_ioctl): Ditto.
 
-	* ppc-opcode-test-1, ppc-opcode-test-2: New files.  These test the
-        switch/table generation ability of igen.
+	* device_table.c (stack_ioctl_callback): Return 0 status.
+	(vm_ioctl_callback): Ditto
 
-	* igen.c (idecode_switch_leaf): Fix code output when a switch
-        statement needs to look up a table.
+Thu Apr  4 20:58:05 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	* igen.c (idecode_declare_if_switch): New function called from
-        gen_idecode_c - need to declare any idecode switch functions
-        before they are used in idecode tables.
+	* interrupts.h (interrupts): New structure contains state of
+        pending interrupts.
 
-	* igen.c (lf_print_c_cracker_function, idecode_crack_leaf,
-        idecode_crack_insn): Add is_inline_function argument to code
-        printing cracker functions which indicates if STATIC_IDECODE or
-        STATIC_INLINE_IDECODE should be used for definition.  For
-        idecode_crack_insn (which implies not duplicating/expanding) don't
-        declare function as inline - we assume that the only time this is
-        code is generated is when things are being tested.  For
-        idecode_crack_leaf, make static (instead of INLINE) if the
-        instructions parent is a table as function will always be called
-        via a table.
+	* cpu.c (cpu_interrupts): New function.  Pending interrupt status
+        in the cpu and grant access to it.  Add interrupts to cpu
+        structure.
 
-	* igen.c (idecode_expand_if_switch): Declare as STATIC_IDECODE not
-        STATIC_INLINE_IDECODE. Only the outermost idecode switch will be
-        called directly, all others are called via a table.
+Fri Mar 29 22:09:25 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	* igen.c (lf_print_semantic_function_header, semantics_h_leaf,
-        semantics_h_insn, semantics_h_function,
-        lf_print_c_semantic_function, semantics_c_function): Add
-        is_inline_function argument to lf_print_semantic_function_header
-        to indicate if an inline or static function declaration/definition
-        should be output.  Depending on situtation call accordingly:
-        functions (not instruction semantic routines) are always inline;
-        Semantic routines are made inline when there is no icache (cache
-        will contain the function address) and are duplicating (see above)
-        and the parent of the instruction is a switch statement.
+	* device.c (device_tree_add_parsed): Check that the creation of a
+        device instance worked before using it.
 
-	* igen.c (opcode_field_new): Delete.  Code changed to use ZALLOC
-        and moved to insn_table_find_opcode_field.
+	* psim.c (psim_halt): Remove cia argument from psim_halt.  This
+        function does not save the CIA so do not pass it in.
 
-	* table.c (table_open): Fix typo (nr_model_fields vs nr_fields).
+Fri Mar 29 21:30:56 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	* igen.c (model_c_insn): Suggestion - document the name of the
-        instruction on each line of the instruction model table.
+	* hw_pal.c (hw_pal): Merge the halt and icu and console devices
+        found in device_table.c into a single hack pal.
 
-Fri Nov 10 00:44:38 1995  Andrew Cagney   <cagneyhighland.com.au>
+	* device_table.c (halt, icu, console): Delete.
 
-	* emul_netbsd.c (do_ioctl): Cleanup compilation.
+	* Makefile.in (hw_pal.o): New dependency.
 
-	* sim_callbacks.h (__attribute__): Only define if not defined (was
-        already defined on NetBSD host).
+	* emul_generic.c (emul_add_tree_hardware): Re-arange device tree
+        so that it uses the pal instead of the icu/halt/console devices.
+        Wire the pal's interrupt ports up to the cpu nodes.
 
-Wed Nov  8 21:49:52 1995  Andrew Cagney   <cagneyhighland.com.au>
+Fri Mar 29 20:17:17 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	* std-config.h (WITH_XOR_ENDIAN), configure.in, Makefile.in: New
-        macro, indicates if the PowerPC's horrible XOR endian mode should
-        be suported.  Add to configure and make.
+	* hw_iobus.c (hw_iobus_attach_address_callback): Move from
+        device_table.c to here.
 
-	* vm_n.h (vm_data_map_read_N, vm_data_map_write_N), vm.c
-        (vm_instruction_map_read): If XOR endian, xor the address
-	with a value from an xor table (indexed by size of access).
+	* Makefile.in (hw_iobus.o): New dependency.
 
-	* vm.c (vm_synchronize_context), cpu.c (cpu_synchronize_context):
-        set up xor table to xor if there is a conflict between the
-        CURRENT_TARGET_ENDIAN and the endian indicated in the MSR.  Move
-        check of suported change of endian mode from cpu.c to vm.c.
+Mon Mar 25 22:07:13 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>
 
-	* vm.c (vm_data_map_write_buffer, vm_data_map_read_buffer):
-        Hopefully added correct hack to handle XOR endian mode.
+	* configure: Regenerate with autoconf 2.9.
 
-	FIXME: If NONSTRICT alignment and XOR ENDIAN and MSR indicates
-        little endian mode, the model accepts miss aligned transfers.
+Thu Mar 21 00:14:26 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	FIXME: Need to create an `init' device that, during
-        initializatioin for XOR mode, it mushes (XOR address) all the dma
-        data before passing it on to the core for storage. Just like the
-        real thing really.
+	* device_table.h: Always include string headers.
 
-Wed Nov  8 21:49:52 1995  Andrew Cagney   <cagneyhighland.com.au>
+Sun Mar 17 22:40:57 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	* devices.c (halt_io_write_buffer_callback): Use value written to
-        halt device to determine exit status.  Thus allowing
-        success/failure of OEA tests.
+	* basics.h: Move the event queue's definition to here so that it
+        can be refered to globally with out importing all of events.h.
 
-Wed Nov  8 00:10:38 1995  Andrew Cagney   <cagneyhighland.com.au>
+	* psim.h, psim.c (psim_event_queue): New function.  Grant access
+        to the simulation event queue.  Will make this the single point of
+        access (there is after all only one event queue in the
+        simulation).
 
-	* ppc-instructions (icbi): If icache present flush it.
+	* cpu.c (cpu_create): Use psim_event_queue to obtain the event
+        queue instead of it being passed in.  No longer allow access to
+        the cpu's copy of the event queue.
 
-Tue Nov  7 23:36:31 1995  Andrew Cagney   <cagneyhighland.com.au>
+Sun Mar 17 22:40:57 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	* devices.c (htab_init_callback): Add code to create htab/pte.
+	* events.h, events.c (event_handler): Remove event_queue from
+        arguments passed to an event handler.  That argument is redundant
+        - the `data' should refer to a data structure that contains the
+        event queue if queing is needed.
 
-	* devices.c (dma_file, file_init_callback, htab_init_callback):
-        New function - Dma the named file into memory at the specified
-        address.  Use.
+	* cpu.c (cpu_decrement_event): adjust
 
-	* device_tree.h, device_tree.c (scand_*): New functions.
+	* events.c (event_queue_process): adjust
 
-Tue Nov  7 23:36:31 1995  Andrew Cagney   <cagneyhighland.com.au>
+Sun Mar 17 22:40:57 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	* filter_filename.c, Makefile.in: Change so that only dependant on
-        a very limited nr of files.  Stops an unnecessary dependency.
+	* device.h, device.c (device_system): New, returns a handle for
+        the system given the device.
 
-Tue Nov  7 15:44:33 1995  Andrew Cagney  <cagney@highland.com.au>
+	* device.c (device_address_init): Store a pointer back to the
+        system in each devices node.
 
-	* core.c (core_map_find_mapping): Use cpu_halt rather than error
- 	to abort an access to an undefined address.
+	* device_table.h: Don't pass `system' into each device when it is
+        being initialized, this is now available using device_system(me).
 
-Sun Nov 12 07:58:09 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* igen.c (model_table_insert_{macro,function}): New functions.
-	(insn_table_load_insns): Call them.
-	(gen_model_h): Move section emiting model-macros to be first.
-	(model_{c,h}_function): New functions cloned from semantic
-	functions to print out the prototype and function for
-	model-functions.
-	(gen_model_{c,h}): Print out model-functions.
-
-	* ppc-instructions (model_{start,halt,print_info}): Add dummy
-	model-functions.
-
-	* options.c (print_options): Print out WITH_{,DEFAULT_}MODEL, not
-	WITH_PPC_{,DEFAULT_}_MODEL.
-	(options_ppc): Delete now unused function.
-	(cpu.h): Include cpu.h, not just basics.h.
-
-	* std-config.h (WITH_{,DEFAULT_}MODEL): Define.
-
-	* igen.c (model_macros, last_model_macro): New statics to keep
-	track of macros to go in model.h.
-	(insn_table_load_insns): Add model-macros to model_macros linked
-	list.
-	(model_table_fields): Add field for printable name.
-	(gen_model_h): If there are model macros defined, print them out.
-	Print out DEFAULT_MODEL as the first model if there any models
-	specified, otherwise MODEL_NONE.  Print out external decl for
-	current_model.  Print out decl for model_set.
-	(gen_model_c): Add function model_set.  Switch to use printable
-	name for the model, not the internal identifier used.
-
-	* psim.c (current_model): New global variable.
-
-	* ppc-instructions: Add macros for flag defines.  Switch first
-	model so 604 is first.
-
-	* main.c (main): Call model_set, not function_unit_model.
-	* sim_calls.c (sim_open): Ditto.
-	* sim_calls.c, Makefile.in: sim_calls.c now includes cpu.h.
-
-Sat Nov 11 07:27:41 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* mon.h (mon_events): New enumeration for other events we want to
-	handle.
-	(mon_event): Add declaration for function.
-
-	* mon.c (mon_event): New function.
-	(mon_print_info): Print icache misses.
-
-	* psim.c (run_until_stop): Monitor icache misses.
-
-	* configure.in (--enable-sim-inline): Fix typos in handling comma
-	separated inline options.
-	(--enable-sim-icache): Echo icache size.
-	* configure: Regenerate.
-
-	* igen.c (semantics_h_print_function): Emit STATIC_SEMANTICS
-	instead of INLINE_SEMANTICS so that the compiler won't keep all of
-	the semantic functions as inline RTL, given that the address of
-	the function is taken which forces outline calls anyway.
-	(lf_print_c_semantic_function_header): Ditto.
-	(gen_semantics_h): Define STATIC_SEMANTICS as nothing if not
-	defined.
-	(lf_print_c_cracker_function): Emit STATIC_IDECODE instead of
-	STATIC_INLINE_IDECODE.
-	(gen_idecode_c): Define STATIC_IDECODE if not defined.
-	(gen_model_h): Use #ifdefs to define types to hold model units,
-	cycles, and flags.
-	(model_table_insert): Add a sentinel functional unit at the end to
-	simplify loop processing.
-	(model_c_insn): Use <function-unit>_SENTINAL instead of 0 for any
-	instruction not specifing a function unit for the current model.
-	(gen_model_{c,h}): Provide bounds for model_time_mapping.
-	
-	* inline.h (STATIC_SEMANTICS): Define to be static if
-	SEMANTICS_INLINE is defined.
-	(STATIC_IDECODE): Define to be static if IDECODE_INLINE is
-	defined.
-	
-	* options.c (print_options): Fix typo.
-
-Fri Nov 10 06:39:46 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* configure.in (--enable-sim-{opcode,config}): Use $srcdir when
-	check for the existence of files.
-	* configure: Regenerate.
-
-	* table.c (table): New field nr_model_fields.
-	(table_open): New parameter nr_model_fields.
-	(table_entry_read): Parse model fields that begin with a '*' after
-	each instruction.
-	* igen.c, dgen.c: Change callers of table_open.
-
-	* igen.c: Add support for dumping model specific information in
-	model.h and model.c.
-	(insn_field_name): Delete unused array.
-	(global variables): Make global variables static, so we can tell
-	when they are no longer used.
-	(cache_semantic_actual): Delete unused variable.
-	(insn_table_load_insns): If the insn is really a machine model,
-	call model_table_insert instead of other processing.
-	(model_table_insert): New function to handle defining the
-	functional units of a particular machine model.
-	(insn_table): Add last_function field so we can add functions at
-	the end.
-	(insn_table_insert_function): Use last_function field when
-	appending new function.
-
-	* ppc-instructions: Add a few model specific information for 603,
-	603e, and 604 for testing purposes.
-	
-	* table.h (table_model_entry): New linked list to hold model
-	specific information, one per line.
-	(table_entry): Add model_first, model_last fields.
-
-	* configure.in (--enable-sim-inline): If gcc is found and
-	--enable-sim-inline is not specified, defaine DEFAULT_INLINE to 1,
-	not 2.
-	(--enable-sim-reserved-bits): New switch to check whether reserved
-	bits are set in the instruction.
-	(--enable-sim-opcode): Make complex the default.
-	(all switches): Add appropriate checks and error messages.
-	* configure: Regenerate.
-
-	* Makefile.in (RESERVED_CFLAGS): New variable set by
-	--enable-sim-reserved-bits.
-	(CONFIG_CFLAGS): Include RESERVED_CFLAGS.
-	(BUILT_SRC): igen now generates model.c and model.h.
-	(LIB_OBJ): Include table.o.
-	(tmp-igen): Add -m/-M options to write model.c/model.h.
-	(model.o): New object.
-	(CPU_H): Include model.h.
-
-	* cpu.h: Include model.h.
-
-	* std-config.h (WITH_RESERVED_BITS): Define.
-	(MODEL_INLINE): Ditto.
-
-	* options.c (print_options): Print out WITH_RESERVED_BITS.
-
-Thu Nov  9 12:22:15 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* configure.in: If --silent, don't output information messages.
-	* configure: Regenerate.
-
-	* configure.in (--enable-sim-alignment): Fix typo in specifing non
-	strict alignment.
-	(--enable-sim-switch): Make default on.
-	(--enable-sim-duplicate): Make default on.
-	(--enable-sim-smp): Make default 0.
-	(--enable-sim-mon): Don't set sim_float if not set.
-	(--enable-sim-inline): If gcc is found and --enable-sim-inline is
-	not specified, define DEFAULT_INLINE to be 2.
-	(all --enable-sim-* rules): Echo rules set to non empty to file
-	descriptor 6.
-	* configure: Regenerate.
-
-	* options.c (options_env): Fix typo if WITH_ENV is 0.
-	(print_options): Print GCC compiler version if available and
-	date/time options was compiled.  If OPCODE_RULES, IGEN_FLAGS,
-	and/or DGEN_FLAGS are defined, print them.
-
-	* Makefile.in (all link actions): Pass SIM_CFLAGS as well as
-	CFLAGS.
-	(options.o): Compile options.o with OPCODE_RULES, IGEN_FLAGS, and
-	DGEN_FLAGS defined, so they can be printed out.
-
-	* igen.c (lf_print_c_validate): Check for WITH_ASSERT, so that
-	this test can be compiled away if the user really wants a fast
-	simulator by not doing assertion failures.
-
-Wed Nov  8 13:19:47 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* options.c: New file to print out all of the WITH_ options.
-	* options.h: New include file to declare print_options.
-	* debug.h (trace_options): Add trace_opts to call print_options.
-	* debug.c (trace_description): Add trace_opts support.
-	* main.c (main): If user requested options, print them.
-	* sim_calls.c (sim_open): Ditto.
-	
-	* igen.c (opcode_field_new): Add void to make it a proper prototype.
-
-	* emul_generic.c (emul_enter_call): Make printf_filtered arguments
-	type correct.
-	* emul_netbsd.c (do_kill): Ditto.
-	* registers.c (registers_dump): Ditto.
-	* vm.c (om_translate_effective_to_real): Ditto.
-	* vm_n.h (vm_data_map_read_N): Ditto.
-	(vm_data_map_write_N): Ditto.
-	* devices.h (DTRACE_INIT): Ditto.
-	(DTRACE_{ATTACH,DETACH}_ADDRESS): Ditto.
-	(DTRACE_IO_{READ,WRITE}_BUFFER): Ditto.
-	(DTRACE_DMA_{READ,WRITE}_BUFFER): Ditto.
-	* devices.c (update_for_binary_section): Ditto.
-	(write_stack_arguments): Ditto.
-	(stack_ioctl_callback): Ditto.
-	* device_tree.c (device_tree_add_passthrough): Ditto.
-	(device_tree_{add,find}_device): Ditto.
-	(device_tree_{add,find}_integer): Ditto.
-	(device_tree_find_{string,boolean}): Ditto.
-	(device_tree_init{,_device}): Ditto.
-	(device_tree_dump): Ditto.
-	* sim_calls.c (sim_{read,write}): Ditto.
-	(sim_{fetch,store}_register): Ditto.
-	(sim_stop_reason): Ditto.
-
-	* sim_callbacks.h (printf_filtered): Declare with attribute
-	printf, so we can enable format checks.
-
-	* devices.c (console_io_{read,write}_buffer_callback): Cast swtich
-	argument to int, since ANSI doesn't allow long switch values.
-	* emul_netbsd.c (do___sysctl): Ditto.
-
-	* emul_netbsd.c (do___sysctl): Fix up printf call.
-	
-	* corefile.c (core_translate): Don't do arithmetic with void *
-	pointers.  Cast to char * first.
-	
-	* function_unit.c (FUNC_{LOAD,STORE}): Rename from {LOAD,STORE}
-	and change all uses.
-
-	* Makefile.in ({FUNC,MODEL,WARNING}_CFLAGS): New flags set by
-	configure --enable switches.
-	(CONFIG_CFLAGS): Include FUNC_CFLAGS and MODE_CFLAGS.
-	(.c.o): Include WARNING_CFLAGS.
-	(CPU_H): Include function_unit.h.
-	(LIB_OBJ): Include function_unit.o.
-	(BUILT_SRC_WO_CONFIG): Split from BUILT_SRC and do not include
-	config.h or ppc-config.h.
-	(BUILT_SRC): Include BUILT_SRC_WO_CONFIG, config.h and
-	ppc-config.h.
-	(filter_filename.o): Include config.h/ppc-config.h dependencies.
-	(idecode.o, semantics.o, psim.o): Specify CC line without
-	WARNING_CFLAGS so that we don't get all of the unused variable
-	warnings that are generated.
-	(function_unit.o): Add rule to build.
-	(main.o, sim_calls.o): Add function_unit.h, itable.h dependencies.
-	(mon.o): Include mon.c dependency.
-	(TAGS): Depend on BUILT_SRC.
-	(clean): Don't delete config.h or ppc-config.h
-
-	* basics.h (sim_callbacks.h): Move include after the include of
-	config.h and ppc-config.h.
-
-	* bits.{h,c} (ROTL32,ROTL64): Move these functions to bits.c.  Add
-	support for BITS_INLINE to inline these.  Add declarations to
-	bits.h.
-
-	* configure.in (--enable-sim-warnings): Add new option to specify
-	compiler warnings for all modules except idecode.o and semantics.o
-	which have lots of unused variables because they are machine
-	generated.
-	(--enable-sim-function-unit): New switch to configure whether
-	function unit support is compiled in or not.
-	(--enable-sim-{,default-}mode): New switches to control which cpu
-	model is used.
-	* configure: Regenerate.
-
-	* corefile.c (core_attach_address_callback): Delete unused
-	variable device_address.
-
-	* cpu.c (struct _cpu): Add function unit pointer field func_unit.
-	(cpu_create): If WITH_FUNCTION_UNIT, call function_unit_create.
-	(cpu_init): If WITH_FUNCTION_UNIT, call function_unit_init.
-	(cpu_halt): If WITH_FUNCTION_UNIT, call function_unit_halt.
-	(cpu_function_unit): New function to return func_unit field.
-
-	* cpu.h (function_unit.h): Include new include file.
-	(cpu_function_unit): Declare.
-
-	* debug.c (stdlib.h): Test HAVE_STDLIB_H, not HAVE_STDLIB.
-	(config.h): Include config.h.
-
-	* devices.c (icu_io_write_buffer_callback): Delete unused variable
-	system.
-
-	* emul_generic.c (emul_exit_call): Print out status value.
-
-	* emul_netbsd.c (do_read): Delete unused variable nr_moved.
-
-	* filter_filename.h (includes): Include config.h, ppc-config.h,
-	not basics.h.
-
-	* inline.c: Include bits.c if BITS_INLINE.  Include
-	function_unit.c if FUNCTION_UNIT_INLINE.
-
-	* inline.h (INLINE_BITS): Define if BITS_INLINE.
-	(INLINE_FUNCTION_UNIT): Define if FUNCTION_UNIT_INLINE.
-
-	* interrupts.c (instruction_storage_interrupt): Delete unused
-	variable nia.
-
-	* lf.h (config.h): Include config.h.
-
-	* main.c (includes): Include function_unit.c.  If HAVE_UNISTD_H,
-	include unistd.h.
-	(usage): Update for -m model, -i, and -I options.
-	(main): Delete unused variables stack_pointer and i.  Add support
-	for -i, -m model arguments.  Call psim_print_info with verbose ==
-	1 if -i, and verbose == 2 if -I.
-
-	* mon.c (stdio.h): Include stdio.h to pick up sprintf prototype.
-	(mon_issue): Call function_unit_issue if function units are
-	supported.
-	(mon_print_info): Take psim * argument.  Print out information
-	from function_unit if available.  Move read/write stats to always
-	print, instead of printing if verbose > 1.  Fix up plural
-	vs. singular usage.
-
-	* mon.h (mon_print_info): Update prototype.
-
-	* psim.c (current_ppc_model): Add global variable.
-	(psim_print_info): Pass system argument to mon_print_info.
-
-	* sim_calls.c (function_unit.h): Include.
-	(sim_open): Add support for -i and -m model options.  If -i call
-	psim_print_info with verbose == 1, if -I, with verbose == 2.
-	(sim_resume): Delete unused variable program_counter.
-
-	* std-config.h (WITH_FUNCTION_UNIT): Define.
-	(ppc_model): Add enumeration giving all PowerPC models currently
-	known about.
-	({WITH,CURRENT}_PPC_MODEL): Define.
-	(FUNCTION_UNIT_INLINE): Define.
-
-	* table.c (config.h): Include config.h.
-
-	* vm.c (om_virtual_to_real): Print pte_word_{0,1} so the compiler
-	doesn't complain that they're unused.
-
-	* vm_n.h (vm_data_map_read_N): Delete unused variable rval.
-	
-Mon Nov  6 23:15:54 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* sim-endian.c (ppc-endian.c), sim-endian.h (ppc-endian.h):
-        renameed.  These files are target independant.
-	* Makefile.in, basics.h: update for new name.
-
-	* sim-endian.h (SWAP_N), sim-endian.c (_SWAP_1): Rename existing
-        SWAP_<N> to _SWAP_<N> so that sim-endian.h can contain SWAP_N
-        macro's as required.
-
-	* sim-endian.c, sim-endian-n.h (new file): Move endian code into a
-        debugable header file.
-
-	* ppc-instructions (Byte-Reverse): Enable byte reverse
-        instructions using SWAP_N macros.
-
-Mon Nov  6 10:39:28 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* Makefile.in (config.status): Remove references to config.make
-	and config.hdr.
-
-	* config.{make,hdr}: Delete, no longer used.
-	* build-psim: Ditto.
-
-Mon Nov  6 20:49:56 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* sim_calls.c (sim_open): Fix parsing of `target sim' options.
-
-	* device_tree.c (device_tree_add_string): Wasn't saving the value
- 	of the string being entered into the tree.
-
-	* psim.c (create_filed_device_tree): Not terminating string device
- 	names with a null.
-	
-	* psim.c (psim_create): Use `env' instead of
- 	`environment-architecture' to be consistent with configure.
-  	Reconize user/uea, virtual/vea and operating/oea.
-
-Sat Nov  4 12:29:45 1995  Fred Fish  <fnf@cygnus.com>
-
-	* core.c:  Rename to corefile.c
-	* core.h:  Rename to corefile.h
-	* inline.c: Include corefile.h, renamed from core.h.
-	* cpu.h: Include corefile.h, renamed from core.h
-	* vm.c: Include corefile.h, renamed from core.h
-	* corefile.c: Include corefile.h rather than core.h
-	* README.psim (KNOWN PROBLEMS): Change core.* references to corefile.*
-	references.
-	* Makefile.in (CPU_H): Change core.h to corefile.h
-	(vm.o):  Change dependency to corefile.h
-	(LIB_SRC): Change core.c to corefile.c.
-	(LIB_OBJ): Change core.o to corefile.o.
-	(corefile.o):  Change dependencies to corefile.c, corefile.h.
-
-Fri Nov  3 11:37:24 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* ppc-instructions (data cache instructions): Make all data cache
-	instructions nops instead of invalid instructions.
-
-	* Makefile.in (CONFIG_CFLAGS): Add ALIGNMENT_CFLAGS and
-	TIMEBASE_CFLAGS which weren't included.
-
-Thu Nov  2 08:54:04 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* Makefile.in: Uncomment built file dependencies.
-	
-	* configure.in: Rewrite --enable-sim switch handling to use the
-	autoconf builtins so it works correctly if the configure or
-	Makefile.in files are modified and make decides to rebuild
-	Makefile.  Also document all of the --enable-sim switches
-	supported.  Check whether getrusage and sys/resource.h are
-	supported.
-	* config.in: Regenerate.
-	* configure: Regenerate.
-	* Makefile.in: Add support for all of the variables set with
-	--enable-sim switches.
-
-	* Makefile.in (clean): make clean now removes all built sources as
-	well.
-	
-	* cpu.c: Use HAVE_STRING_H, HAVE_STRINGS_H, HAVE_UNISTD_H,
-	HAVE_TIME_H, HAVE_SYS_TIMES_H, HAVE_SYS_RESOURCE_H defined in
-	the generated config.h.
-	* debug.c: Ditto.
-	* device_tree.c: Ditto.
-	* devices.c: Ditto.
-	* dgen.c: Ditto.
-	* emul_netbsd.c: Ditto.
-	* igen.c: Ditto.
-	* lf.c: Ditto.
-	* misc.c: Ditto.
-	* psim.c: Ditto.
-	* registers.c: Ditto.
-	* sim_calls.c: Ditt.
-	* table.c: Ditto.
-
-
-	* main.c (main): Call psim_print_info with verbose == 2.
-
-	* mon.c (mon_print_info): Align the cpu number and number of
-	instructions fields.  Do not print an instruction category if the
-	CPU did not execute any of those instructions.  Print out number
-	of reads and writes.  If getrusage is supported, print out number
-	of simulated instructins per second.
-	
-	* configure.in: Add support for --enable-sim-opcode=stupid.
-	* configure: Regenerate.
-
-Wed Nov  1 23:46:59 1995  Andrew Cagney   <cagney@highland.com.au>
-
-	* std-config (INLINE_DEVICE_TREE): Don't inline either of
-        device_tree.c or devices.c.  There is no significant gain.
-
-	* configure.in, Makefile.in: add --enable-sim-icache=[0-9]* and
- 	IGEN_ICACHE macro.
-	
-Wed Nov  1 23:46:59 1995  Andrew Cagney   <cagney@highland.com.au>
-
-	* igen.c (main), misc.h (target_a2i, i2target), misc.c: Add
-        functions to convert between target and igen internal bit numbers.
-        Make IO go through these functions. Add -b (bit size) and -h (high
-        bit nr) options to igen.  Typical usage would be: ./igen -b 16 -h
-        15 for a 16 bit instruction format with the msb given a number 15.
-
-Wed Nov  1 22:17:32 1995  Andrew Cagney   <cagney@highland.com.au>
-
-	* dgen.c (main): Was outputting optarg even when it was NULL.
-
-Tue Oct 31 23:48:33 1995  Andrew Cagney   <cagney@highland.com.au>
-
-	* vm_n.h (vm_data_map_load_N, vm_data_map_store_n), debug.h,
-        debug.c: Add tracing of load/store unit (virtual) with -t
-        load-store.
-
-Tue Oct 31 21:44:01 1995  Andrew Cagney   <cagney@highland.com.au>
-
-        * std-config.h (WITH_ENVIRONMENT): Add USER_ENVIRONMENT which does
-        not include things such as the time base and events.
-
-	* interrupt.c, sim_calls.c, cpu.h, vm.c, configure.in: Add UEA to
- 	all environment switches for above.
-
-	* psim.c (psim_create): ditto - new device tree node name is
-        /options/environment-architecture with values user, virtual and
-        operating.
-
-Tue Oct 31 21:31:32 1995  Andrew Cagney   <cagney@highland.com.au>
-
-	* ppc-opcode-stupid: Third example of use of opcode table - this
-        one expands all mtspr/mfspr and branch instructions.  Appears to
-        give about a 10% gain in performance if everything enabled.  Also
-        takes about 150mb of swap to build.
-
-Wed Nov  1 10:49:48 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* emul_netbsd.c (do_exit): Print arguments and close parenthesis
-	if tracing, since exit doesn't go through emul_exit_call.
-	(do_read): Print arguments if tracing.
-	(do_write): Ditto.
-	(do_open): Ditto.
-	(do_break): Ditto.
-	(do_kill): Ditto.
-	(do_dup): Ditto.
-	(do_sigprocmask): Replace trace with printing arguments if
-	tracing.
-	(do_ioctl): Print arguments if tracing.
-	(do_umask): Ditto.
-	(do_dup2): Ditto.
-	(do_fcntl): Ditto.
-	(do_gettimeofday): Ditto.
-	(do_getrusage): Ditto.
-	(do_fstatfs): Ditto.
-
-	* filter_filename.c: New file to provide filter_filename to strip
-	the directory prefix from a file.
-	* filter_filename.h: New include file to declare filter_filename.
-
-	* debug.h: Include filter_filename.h.
-	(TRACE,DTRACE,ERROR): Use filter_filename on __FILE__.
-
-	* misc.h: Include filter_filename.h.
- 	(ASSERT): Use filter_filename on __FILE__.
-
-	* igen.c (lf_print_my_prefix): Use filter_filename on the filename
-	argument.
-
-	* Makefile.in: Add filter_filename support.
-
-	* ppc-instructions (dcbi, icbi): Make these NOPs rather than
-	invalid instructions.
-
-	* configure.in: Add support for more --enable-sim-* switches.
-	Use config.make and config.hdr to write to Makefile and config.h
-	respectively.  Don't rewrite Makefile, just append to it.
-	* configure: Regenerate.
-	* config.{make,hdr}: New shell scripts.
-	
-	* Makefile.in: Remove all variables set by configure.in.
-	(psim.o): Depend on $(BUILT_SRC) also.
-
-	* emul_netbsd.c (do_gettimeofday,do_getrusage): When comparing an
-	integer, use 0, not NULL.
-
-Tue Oct 31 15:20:04 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* configure.in: Add support for --enable-sim-inline,
-	--enable-sim-bswap, --enable-sim-cflags, --enable-sim-complex,
-	--enable-sim-switch, --enable-sim-duplicate, --enable-sim-filter,
-	and --enable-sim-endian switch to control various Makefile
-	variables.
-	* configure: Regenerate from configure.in.
-	* Makefile.in: Add various Make variables that the various
-	switches alter.
-
-	* std-config.h (DEFAULT_INLINE): Don't set this to 2 if using GCC
-	and optimizing by default.
-
-Fri Oct 27 19:26:27 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* bits.h (ROTL32, ROTL64): Were functions, made them macros, now
- 	make them functions again.  Appears 2.6.3 is confused by just a
- 	macro.
-
-Thu Oct 26 18:31:58 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* ppc-endian.c (SWAP_8): Fix 8 byte swap!
-
-	* psim.c (psim_create): Not correctly checking that runtime
- 	configuration of things like ENDIAN, ENVIRONMENT and ALIGNMENT
- 	matched the compiled in ones.
-
-	* debug.h (ITRACE), igen.c: Tidy up more tracing flags -
- 	trace_semantics is now different to trace_idecode, the former
- 	checks the cache.
-	
-Tue Oct 24 21:54:13 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* ppc-instructions (mtsrin): Missing instruction
-	* ppc-instructions (mfsrin): Missing instruction
-	* ppc-instructions (eieio): Missing instruction
-
-Tue Oct 24 20:55:29 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* build-psim: New shell script - see internals for usage,
- 	simplifies the process of building custom simulators.
-
-Mon Oct 23 23:48:59 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* std-config.h (SEMANTICS_INLINE): Tidy up notes on each of the
-        INLINE macros.  Make SEMANTICS_INLINE == 1 if DEFAULT_INLINE == 2.
-        Don't use DEFAULT_INLINE to define REGISTERS_INLINE DEVICES_INLINE
-        DEVICE_TREE_INLINE or INTERRUPTS_INLINE as none of these are on
-        the instruction or data critical paths.
-  	
-	* FIXME: devices.c/emul_netbsd.c would benefit (slightly) from
- 	the inclusion of device_tree.c/emul_generic.c.
-
-Mon Oct 23 00:31:50 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* os_emul.[hc], emul_generic.[hc], emul_netbsd.[hc]: replace
-        system.[hc].  Start of suport for multiple emulations and
-        emulation state (os_emul object).
-
-	* emul_generic.[hc]: Start of code to implement proper system call
-	tracing (from spy).
-
-Sun Oct 22 21:33:51 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* cpu.h, cpu.c (cpu_init): New function, zero the registers before
-        the processor is started. Fixes problem of registers being
-        undefined when restarting from within gdb.
-
-	* cpu.h, cpu.c (cpu_flush_icache): New function, flushes the
-        instruction cache (if present).  Fixes problem of cpu caching gdb
-        breakpoint instructions.
-
-	FIXME: PSIM sometimes aborts calling error(), it should instead
- 	call sim_error() say which takes care of housekeeping such as
- 	saving the CIA before calling error.
-	
-	* NOTE: cpu_flush_cache() instead of cpu_synchronize_context() is
- 	used when restarting a simulation because the latter has the
- 	unwanted side effect (well I as a kernel hacker think it is) of
- 	performing an isync when the instruction stream doesn't contain
- 	one.
-
-Sun Oct 22 19:27:48 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* mon.h (new), mon.c (new), std-config.h (WITH_MON): Performance
-        monitoring module. Counts both instructions issued and
-        load/stores.
-
-	* NOTE: mon does not contain to count instruction loads as this
- 	information is already available from the mon_issue() hook.
-
-	* igen.c (lf_print_c_semantic), vm_n.h: Add counting code.
-
-	* psim.h, psim.c (psim_create), cpu.h, cpu.c (cpu_create): Attach
-        a common monitor to each of the cpus. Delete
-        cpu_increment_number_of_insns() and cpu_get_number_of_insns()
-        replaced by copied code in mon.[hc].
-
-Sun Oct 22 18:42:45 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* sim_calls.c, main.c, psim.c (psim_create): always create
-        `WITH_SMP' cpus.  The actual number of CPU's active in a
-        simulation run is taken from the device node: /init/smp (an
-        integer). WITH_SMP changed to 2 (remember to put it back to 0).
-
-Fri Oct 20 17:26:54 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* system.c: More system call emulation.  If code appears NetBSD
- 	specific, make conditional to being compiled on a NetBSD system
- 	(sigh).
-
-Wed Oct 18 23:02:20 1995  Andrew Cagney  <cagney@highland.com.au>
-	
-	* Makefile.in, gen.c(delete), igen.c(new), dgen.c(new),
- 	lf.[ch](new), table.[ch](new): Split into two generators - igen
- 	that outputs the instruction tables and dgen that outputs the spr
- 	tables.  Add -f (filter out) flag to igen to filter out certain
- 	instructions (ex 64 bit ones) from the created tables.  Include
- 	$(LIBIBERTY_LIB) in link options in case host lacks some libc
- 	functions.
-
-	* NOTE: igen, since it was originally written for the
- 	PowerPC/RS6000, things the MSB is 0 and the LSB is 63{31}.
-	
-	* Makefile.in, std-config.h, ppc-cache-rules(new),
- 	ppc-opcode-complex(new), ppc-opcode-simple(new): (for igen) Create
- 	cache-rule and opcode-rule tables from macros found std-config.h.
- 	Delete corresponding macro's from std-config.h.
-  	
-	* igen.c (gen_itable_c, gen_itable_h), Makefile.in: code to output
- 	an table of all the instructions.  Code to output a type
- 	enumerating all the instructin names.
-
-	* igen.c(lf_print_c_semantic): Move call to increment instruction
- 	counter so that it occures _after_ the instruction has been fully
- 	validated, was double counting illegal/invalid instructions.  Add
- 	conditional so only compiled in when WITH_PROFILE enabled (enabled
- 	by default).
-	
-	* igen.c, cpu.h, cpu.c(cpu_increment_number_of_insns): Include
- 	itable.h, count individual instruction types not just total,
- 	adjust reporting functions to output this.
-	
-	* ppc-instructions (64 bit Load Doubleword with Update Indexed):
- 	Had 32./ instead of 31./
-
-	* ppc-instructions (64 bit Store Double Word Conditional Indexed):
- 	bitrot - updated to use newer CR register operators.
-
-	* ppc-instructions (64bit Floating Convert from Integer
- 	Doubleword): Correct call to Round_Float().
-
-Mon Oct 16 00:31:20 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* basics.h: #include "sim_callbacks.h" earlier so that its
- 	prototypes are declared in all other header files.
-
-	* bits.h, bits.c, idecode_expression.h (ROTL32, ROTL64): Update
- 	doc in bits.h, remove dead code in bits.c, move ROTL32/ROTL64 into
- 	bits.h.
-
-	* cpu.c(cpu_add_commas), device_tree.h, device_tree.c(scand_*):
- 	Add size of buffer argument to functions writing a string into a
- 	buffer.  Check for buffer overflow.
-	
-Sun Oct 15 22:16:11 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* devices.h, devices.c, debug.h, debug.c: add macro's for tracing
-        of each device.  Make parameter names consistent so macros work.
-        Use macro's in device functions.
-
-	* device_tree.c, devices.h, devices.c: include path to device in a
-        devices node when creating it.
-
-	* device_tree.c, debug.h, debug.c: Add tracing of `device-tree'.
-
-	* core.c: add tracing of core-device, adjust parameter names in
- 	core functions to be consistent with those in devices*.
-
-Sun Oct 15 20:33:20 1995  Andrew Cagney  <cagney@highland.com.au>
-
-        * debug.h, debug.c (trace_option): New function. Parses the trace
-        option, updating the trace array.
-
-	* debug.h, debug.c (trace_usage): New function. Outputs the list
-        of all possible trace options.
-
-	* sim_calls.c (sim_open), main.c (main): Use new trace_option() to
- 	parse trace options specified with the simpler -t flag.  Adjust
- 	usage.
-
-	* FIXME: basic parsing of command line options is still duplicated
- 	by main.c and sim_calls.c
-
-Thu Oct 26 10:42:28 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* Makefile.in (clean): Delete *.i and *.out files.
-
-	* ppc-endian.c (SWAP_n): Add SET argument to allow use of SWAP
-	macros for either assignment or return.  Fix SWAP_8 to use a
-	union, and two SWAP_4's.  Delete SWAP_N, since nobody uses it now.
-	(ENDIAN_N): Add SET argument to SWAP_n calls.  Delete macro defs
-	that hardwired swapping on/off, let optimizer delete dead code.
-
-	* main.c (main): Add printf that we caught a signal and print out
-	the failing address.
-
-Thu Oct 19 21:43:39 1995  Fred Fish  <fnf@fishfood.amigalib.com>
-
-	* Makefile.in:  Remove tabs from otherwise empty line.
-	Confuses many non-GNU versions of "make".
-
-Wed Oct 18 08:51:25 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* Makefile.in (clean): Delete files produced by gen.
-
-Mon Oct 16 17:34:24 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* gen.c (lf_print_c_semantic_function): Move counting # of
-	instructions here so it works with caching.
-	(gen_idecode_c): Move from here.
-
-Wed Oct 11 17:13:15 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* gen.c, ppc-instructions, psim.c: Fix code for generating
-	cracking instruction cache.  Delete the code that cached just the
-	result from doing an instruction lookup - this ran slower than no
-	cache at all.
-
-Fri Oct 13 09:58:43 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* Makefile.in (gen.o): Include $(INLINE_CFLAGS).
-
-	* debug.h (ppc_trace): Rename from trace, to avoid a conflict with
-	TCL when gdb is linked with the simulator.
-	* debug.c (ppc_trace): Ditto.
-	* sim_calls.c (sim_open): Change trace -> ppc_trace.
-	* main.c (main): Ditto.
-
-	* cpu.c (cpu_add_commas): Remove extra static.
-
-Thu Oct 12 11:35:53 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* Makefile.in (psim.o): Now that inlines are turned on, make
-	psim.o depend on all sources.
-
-	* cpu.c (cpu_add_commas): New function to format a long with
-	commas.
-	(cpu_print_info): Use it to print number_of_insns.
-	
-	* ppc-endian.c (SWAP_n): New macros to speed up byte swapping for
-	2, 4, and 8 bytes.
-	(ENDIAN_N): If both target and host byte orders are known, don't
-	bother testing CURRENT_{TARGET,HOST}_BYTE_ORDER.
-
-	* ppc-endian.h (target specific H2T_n/T2H_n macros): Remove #if 0
-	to allow target specific H2T_n/T2H_n macros to be used.
-	(htonl, ntohl): If compiled on a 486 by GCC and WITH_BSWAP is
-	non-zero, redefine the htonl/ntohl macros to use the BSWAP instead
-	of the 3 instruction sequence that runs on 386s.
-
-	* std-config.h (WITH_{HOST,TARGET}_BYTE_ORDER): Don't override if
-	specified on the compile line.
-	(WITH_BSWAP): If not defined, define as 0.
-
-	* Makefile.in (INLINE_CFLAGS): Add -DDEFAULT_INLINE=2 to add
-	default inline support.  Pass INLINE_CFLAGS when compiling.
-
-	* devices.{h,c} (unimp_device_ioctl): Use STATIC_DEVICES, not
-	INLINE_DEVICES since GCC doesn't like inline functions that
-	accept variable arguments.
-	(stack_ioctl_callback): Make function just static because GCC
-	doesn't like inline functions that accept variable arguments.
-
-	* devices.h (STATIC_DEVICES): Define as empty if not defined.
-
-	* inline.c: Correct pathnames of included C files to match current
-	implementation.
-
-	* inline.h (STATIC_DEVICES): If DEVICES_INLINE is defined to be
-	non-zero, define STATIC_DEVICES to be static.
-
-	* std-config.h (INLINE): If GNU C and optimizing, define this as
-	__inline__.
-	(DEFAULT_INLINE): If not defined, define as 0.
-	(ENDIAN_INLINE): If not defined, define as DEFAULT_INLINE.
-	({CORE,VM,CPU,EVENTS,REGISTERS,INTERRUPTS}_INLINE): Ditto.
-	({SPREG,IDECODE}_INLINE): Ditto.	
-	
-Wed Oct 11 17:13:15 1995  Andrew Cagney  <cagney@highland.com.au>
-
-        * ppc-instructions: Initial cut of floating point suport added.
-  	Of note include - use of host IEEE floating point instructions,
- 	use of PowerPC manual pseudo code to handle the FPSCR.  It is not
- 	currently a pretty sight.
-	
-	* memory_map.h, memory_map.c, memory_map_n.h, core.h, core.c:
- 	merge into core.h, core.c, core_n.h. The type memory_map replaced
- 	with core_map.  This removes a level of pointer indirection when
- 	translating an address.
-
-	* memory_map.h, memory_map.c, memory_map_n.h: delete.
-
-	* Makefile.in et.al (sorry): tweek to use new core, core_map and
- 	core.h.
-	
-Wed Oct 11 12:10:26 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* sim_calls.c, main.c: Add -g (trace_gdb) option, add tracing to
- 	most of the other functions in sim_calls.c.
-
-	* basics.h (CONCAT3), memory_map.c, memory_map_n.h, Makefile.in:
- 	Add macros to better cover up `generic' code.  Makes it possible
- 	to step through the generic code!
-
-	* vm.c, vm_n.h, Makefile.in: ditto
-	
-Tue Oct 10 15:42:59 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* devices.h, devices.c, memory_map.h, memory_map.c: Changed
- 	callback interface so that there is a read/write buffer but no
- 	read/write_word.  VEA default memory read/write handler sometimes
- 	couldn't resolve an access and of those some were for a memory
- 	fault and some were because gdb was making a bogus request.
-
-	* devices.h, devices.c, memory_map.h, memory_map.c, vm.h, vm.c:
- 	eliminate transfer_mode (raw or cooked) parameter from read/write
- 	buffer.
-	
-Fri Oct  6 20:23:56 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* ppc-instructions (fmul, fmuls): correct instruction format - had
- 	FRB instead of FRC.
-
-Wed Oct  4 17:31:12 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* psim.c, device_tree.h, device_tree.c, devices.c (printd_*,
- 	scand_*): new functions to parse/print fields in device names
- 	while hiding any machine dependency.
-
-	* devices.c, psim.c: Change the stack init code so that it is
- 	handled by a device.  Arguments passed across using a device ioctl
- 	(hack).
-
-	* devices.h, devices.c: device ioctl callback changed to allow a
- 	variable number of arguments.  This gives greater flexability and
- 	greater chance of bugs.
-
-Tue Oct  3 22:01:56 1995  Andrew Cagney  <cagney@highland.com.au>
-
-	* main.c (printf_filtered, error): Missing va_end() to close off
-        variable argument use.
-
-	* Makefile.in (tmp-gencode): comment out hack to get around some
-        versions of make not handling files being created as side-effects.
-
-	* gen.c (lf_open): Add -n (real_file_name) option.  Specifies an
-        alternative file name to use in output files for things like #line
-        macros.
-
-        Makefile.in (tmp-gencode): Use gen -n so that debug info is
-        correct.
-
-	* Makefile.in (TARGETLIB): Use this instead of libsim.a in the
-	Makefile.
-
-Sat Oct  7 22:40:59 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* sim_calls.c (sim_set_callbacks): Define new function.
-
-Fri Oct  6 17:23:10 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* psim.c (psim_print_info): Print exit status or signal number.
-
-Mon Oct  2 11:46:37 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* cpu.c (struct _cpu): Add number_of_insns field to trace how many
-	instructions are executed.
-	(cpu_increment_number_of_insns): New function to increment the
-	number of instructions issued.
-	(cpu_get_number_of_insns): New function to return the number of
-	instructions issued.
-	(cpu_print_info): New function to print cpu related information.
-	At present, print the number of instructions executed.
-
-	* gen_idecode_c: Emit call to cpu_increment_number_of_insns within
-	idecode_issue.
-
-	* psim.c (psim_print_info): New function to iterate over each of
-	the CPU's calling cpu_print_info.
-	
-	* psim.h,cpu.h: Add new declarations.
-
-	* sim_calls.c (sim_open): Add argument processing to add the same
-	switches main.c accepts for the standalone processor.
-	(sim_close): Call psim_print_info if -I.
-
-	* main.c (main): Add comment saying to update sim_calls.c when
-	adding switches.  Add -I to call psim_print_info when done.
-	(usage): Update usage message.
-
-Sun Oct  1 13:52:59 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* main.c (printf_filtered): Correct to match new prototype.
-
-Sat Sep 30 20:47:05 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* sim_callbacks.h (printf_filtered): Correct prototype.
-
-Thu Sep 21 16:26:49 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* device_tree.c (OEA_MEMORY_SIZE): Define if not defined to
-	0x100000.
-	(clayton_memory_size): Define as OEA_MEMORY_SIZE.
-
-	* std-config.h (WITH_TRACE): Default to 1 now.
-
-	* psim.c (write_stack_arguments): Don't write any stack arguments
-	if OEA.
-
-	* main.c (main): Switch to using getopt.  Make -p also set
-	trace_semantics.  Make -a turn on all trace flags.  Make -C turn
-	on console tracing.
-
-	* device_tree.c (create_option_device_node): Assume a program is
-	OEA if the start address is < 4096, not just == 0.
-
-Wed Sep 20 13:36:06 1995  Ian Lance Taylor  <ian@cygnus.com>
-
-	* Makefile.in (maintainer-clean): New synonym for realclean.
-
-Sun Sep 10 10:23:56 1995  Michael Tiemann  <tiemann@axon.cygnus.com>
-
-	* registers.c (register_description): Add gdb synonyms for cr
-	(cnd) and msr (ps).
-
-Fri Sep  8 13:16:10 1995  Ian Lance Taylor  <ian@cygnus.com>
-
-	* Makefile.in (install): Don't install in $(tooldir).
-
-	* configure.in: Call AC_CONFIG_HEADER.  Don't try to use
-	bfd/hosts/*.h file or bfd/config/*.mh file.  Call AC_PROG_CC and
-	AC_PROG_RANLIB.  Substitute in values for CFLAGS, HDEFINES, AR,
-	and CC_FOR_BUILD.  Call AC_CHECK_HEADERS for various header files.
-	Touch stamp.h if creating config.h.
-	* configure: Rebuild.
-	* config.in: New file, created by autoheader.
-	* Makefile.in (AR): Define as @AR@.
-	(CC): New variable, defined as @CC@.
-	(CFLAGS): Define as @CFLAGS@.
-	(CC_FOR_BUILD): New variable, defined as @CC_FOR_BUILD@.
-	(RANLIB): Define as @RANLIB@.
-	(HDEFINES, TDEFINES): New variables.
-	(@host_makefile_frag@): Remove.
-	(mostlyclean): Make the same as clean, not distclean.
-	(clean): Remove config.log.
-	(distclean): Remove config.h and stamp-h.
-	(Makefile): Don't depend upon @frags@.  Just rebuild Makefile when
-	invoking config.status.
-	(config.h, stamp-h): New targets.
-	(gen, gen.o): Build with CC_FOR_BUILD, not CC.
-	(ppc-config.h): Rename from old config.h build.
-	* (basics.h,gen.c,ppc-endian.c,psim.c): Include ppc-config.h.
-	
-Fri Sep  8 09:51:03 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
+	* device.c (device_address_init, device_data_init): Adjust.
 
-	* configure{,.in}: Don't include sysdep.h from bfd, since bfd no
-	longer provides it.
-	* basics.h (sysdep.h): Don't include it.
-	* Makefile.in (BASICS_H): Remove sysdep.h.
+	* hw_cpu.c, hw_nvram.c, hw_memory.c, hw_eeprom.c, device_table.c:
+        Adjust.
 
-Wed Sep  6 13:25:42 1995  Andrew Cagney  <cagney@highland.com.au>
- 
- 	* core.c (core_add_data): First growth of bss was being put at
-        wrong address (0) instead of &end.
- 
- 	* core.c (core_add_stack, core_add_data): Was not handling case
-        where bss/stack is grown across the current end-of-{bss,stack}.
+Sun Mar 17 22:40:57 1996  Andrew Cagney  <cagney@highland.com.au>
 
-Wed Sep  6 00:46:10 1995  Andrew Cagney  <cagney@highland.com.au>
+	* interrupts.c (decrementer_interrupt, external_interrupt):
+        Remember that an interrupt wasn't delivered so that it can be
+        tried again later.
 
-	* system.c (system_call): Fix SYS_break - was aligning bss to a
-        page boundary instead of just an 8 byte one; On first call sbrk(0)
-        != sbrk(0).
+	* interrupts.c (check_masked_interrupt): New function.  (re)
+        checks for the posibility that a recent change to the MSR may have
+        made it possible to deliver an interrupt that was previously
+        masked be the EE bit.
 
-Thu Aug 24 14:48:54 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
+	* ppc-instructions (mtmsr, mfmsr, rfi): Check for posibility of
+	a pending interrupt being delivered using check_masked_interrupt().
 
-	* Makefile.in (install): Fix install rule.
+	* cpu.c (cpu_decrement_event): Just call decrementer_interrupt()
+        leaving it to that module to handle both interrupt synchronization
+        and masking.
 
-Tue Aug 22 09:31:18 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
+	* cpu.c (struct _cpu): remove variables that were going to record
+        pending decrementer and external interrupts.
 
-	* system.c (system_call): Add read support.
+Sun Mar 17 22:40:57 1996  Andrew Cagney  <cagney@highland.com.au>
 
-	* main.c (main): -t sets trace_device_tree.  Correct usage message
-	to current reality.
+	* hw_cpu.c, hw_cpu.h: New files.  Implement a device that sits
+        between the interrupt controller and the simulators internal
+        processor model.  Maps device interrupts onto the processor
+	interrupt function calls.
 
-	* device_tree.c (update_memory_node_for_section): Make tracing
-	output line up.  If not code or readonly, assume that the section
-	is a data section and has read/write permissions.  Add readonly
-	support.
+Mon Mar  4 06:06:54 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>
 
-	* core.c (create_core_from_addresses): Print end address in traces
-	and make tracing output line up.
+	* hw_nvram.c: NVRAM device that includes a real-time clock that is
+        updated each second.
 
-	* Makefile.in: Rewrite from Makefile to work with the Cygnus
-	environment, and support compiling in a different directory than
-	the sources reside in.
+Mon Mar  4 04:18:50 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>
 
-	* ppc-endian.h: Rename from endian.h so that it doesn't get
-	confused with /usr/include/sys/endian.h on Linux.  Add Linux
-	endian support.
+	* device.h (attach_type): Remove attach_default type address
+        spaces.  Will replace with levels of callback memory.
 
-	* ppc-endian.c: Rename to be consistant with ppc-endian.h.
-	Include ppc-endian.h, not endian.h.
+	* corefile.h, corefile.c (new_core_mapping), corefile.c
+        (core_map_attach): Replace default attach with a layerd callback
+        approach.
 
-	* basics.h (sysdep.h): Include sysdep.h that configure makes.
-	Include ppc-endian.h, not endian.h.
+Sun Mar  3 03:58:46 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>
 
-	* std-config.h: Rename from ppc-config.  Put #ifndefs around most
-	configuration macros, so they can be overridden via CFLAGS.  By
-	default, turn off tracing.
+	* device.c (split_property_specifier): ensure that only a single
+        property is found.
+	(split_value): New function, parses the value part of a device
+	spec.
 
-	* configure.in: Clone from other simulator targets.
-	* configure: Generate via autoconf from configure.in.
+	* device.c (device_tree_add_parsed): Use the interrupt conversion
+        functions to determine the interrupt port numbers.
 
-Sat Aug 19 09:05:32 1995  Andrew Cagney  <cagney@highland.com.au>
+	* device_table.h: Add table that maps between an interrupts
+        symbolic name and its port number.
 
-	* ppc-instructions: fix srawi (was geting XER[CA] real wrong).
+	* device.h, device.c (device_interrupt_decode,
+        device_interrupt_encode): new functions use the recently added
+        interrupt port name/number tables to perform conversion.
 
-	* interrupts.c (data_storage_interrupt): allow stack to grow by
-        upto one MB per increment.
+Sun Mar  3 03:23:59 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>
 
-	* ppc-instructions: divw was computing rA / rA not rA / rB
+	* device.h, device.c (device_set_array_property,
+        device_set_boolean_property, device_set_ihandle_property,
+        device_set_integer_property, device_set_string_property): New
+        functions - allow the value of a given property to be changed.
 
-	* main.c (main): really stupid. Wasn't exiting with correct status
+	* device.h, device.c: Re-order declaration and definition of
+        property functions.
 
-Fri Aug 18 00:38:01 1995  Andrew Cagney  <cagney@highland.com.au>
+Sun Mar  3 03:10:22 1996  Andrew Cagney  <cagney@kremvax.highland.com.au>
 
-	* system.c (system_call): add system calls kill(2) and getpid(2).
+	* device.c (device_tree_print_device, device_tree_add_parsed):
+        Remove references to phandle properties.
 
-	* main.c (main): Check/return exit status when simulation
-        finishes.
+Tue Feb 27 23:59:35 1996  Andrew Cagney - aka Noid  <cagney@highland.com.au>
 
-Thu Aug 17 14:29:18 1995  Andrew Cagney  <cagney@highland.com.au>
+	* device_table.h: Revamp device init callbacks so that they are a
+        sub structure.
+	* device.c (device_init_data, device_init_address): If an init
+        callback is NULL assume it should do nothing.
+	* device_table.c (ignore_device_init, unimp_device_init): delete
+        as redundant.
+	* device_table.c, hw_memory.c: adjust.
 
-	* device_tree.c (create_option_device_node): Alignment rules (at
- 	least for the moment) now are for strict alignment only for LE OEA
- 	mode.  (Because of compiler problems).
+	* (io): ditto.
+	* (dma): ditto.
+	* (device_instance): ditto.
+	* (ioctl): ditto.
+	* (address nee config_address): ditto.
+	* (interrupt): ditto.
 
-	* system.c (system_call) SYS_exit: Wasn't exiting with correct status.
+Mon Feb 26 22:47:15 1996  Andrew Cagney - aka Noid  <cagney@highland.com.au>
 
-Thu Aug 17 01:16:38 1995  Andrew Cagney  <cagney@highland.com.au>
+	* Makefile.in (hw.h, hw.c): New targets. Create from the list of
+        hw_*.c files. hw.h declares a device descriptor table for each hw
+        device while hw.c lists those tables in a form suitable for the
+        construction of a top leveltable in device_table.c.
 
-	* vm.c (DEFINE_VM_DATA_MAP_WRITE_N): For miss aligned transfer
-        forgot to return.
+	* Makefile.in (device_table.o): now depends on hw.c a generated
+        table of hw.
 
-	* system.c (system_call): didn't page align break argument before
-        determining increment break increment.
+	* device_table.c (device_table): Re-arange the table of devices so
+        that two levels are possible.  Make use of hw.c.
+	* device_table.h: ditto.
 
-	* psim/ppc: Re-arange entire directory structure so that
-        everything lives in the one directory.  While a pain for cleaning,
-        makes building across multiple architectures much simpler.
+	* device.c (device_template_create_device): Handle new two level
+        device lookup table.
+	* device.c (device_usage): ditto.
 
-	* devices.c, device_tree.c: Added code that provides a simple
-        illustration of how an interrupt control device could be
-        implemented.
+Mon Feb 26 22:24:00 1996  Andrew Cagney - aka Noid  <cagney@highland.com.au>
 
-	* devices.c: Added code so that the dumb console device can read
-        (from stdin) as well as write to stdout.
+	* device_table.c: Delete the memory device (moved to hw_memory.c).
 
+	* hw_memory.c: New file.  Just an OpenBoot memory device.
diff --git a/sim/ppc/configure b/sim/ppc/configure
index 04d0ac6..703a51c 100755
--- a/sim/ppc/configure
+++ b/sim/ppc/configure
@@ -1,7 +1,7 @@
 #! /bin/sh
 
 # Guess values for system-dependent variables and create Makefiles.
-# Generated automatically using autoconf version 2.7 
+# Generated automatically using autoconf version 2.8 
 # Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
 #
 # This configure script is free software; the Free Software Foundation
@@ -65,6 +65,8 @@ ac_help="$ac_help
   --enable-sim-default-model=which	Specify default PowerPC to model."
 ac_help="$ac_help
   --enable-sim-model-issue		Specify whether to simulate model specific actions"
+ac_help="$ac_help
+  --enable-sim-stdio			Specify whether to use stdio for console input/output."
 
 # Initialize some variables set by options.
 # The variables have the same names as the options, with
@@ -384,7 +386,7 @@ EOF
     verbose=yes ;;
 
   -version | --version | --versio | --versi | --vers)
-    echo "configure generated by autoconf version 2.7"
+    echo "configure generated by autoconf version 2.8"
     exit 0 ;;
 
   -with-* | --with-*)
@@ -549,12 +551,9 @@ fi
 
 ac_ext=c
 # CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='echo $CPP $CPPFLAGS 1>&5;
-$CPP $CPPFLAGS'
-ac_compile='echo ${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5;
-${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5 2>&5'
-ac_link='echo ${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5;
-${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5 2>&5'
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 
 if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
   # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
@@ -570,6 +569,163 @@ fi
 
 
 
+# Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_CC="gcc"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  ac_prog_rejected=no
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
+        ac_prog_rejected=yes
+	continue
+      fi
+      ac_cv_prog_CC="cc"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# -gt 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    set dummy "$ac_dir/$ac_word" "$@"
+    shift
+    ac_cv_prog_CC="$@"
+  fi
+fi
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+  test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
+fi
+
+echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.c <<EOF
+#ifdef __GNUC__
+  yes;
+#endif
+EOF
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:659: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+  ac_cv_prog_gcc=yes
+else
+  ac_cv_prog_gcc=no
+fi
+fi
+
+echo "$ac_t""$ac_cv_prog_gcc" 1>&6
+if test $ac_cv_prog_gcc = yes; then
+  GCC=yes
+  if test "${CFLAGS+set}" != set; then
+    echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_gcc_g'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  echo 'void f(){}' > conftest.c
+if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
+  ac_cv_prog_gcc_g=yes
+else
+  ac_cv_prog_gcc_g=no
+fi
+rm -f conftest*
+
+fi
+
+echo "$ac_t""$ac_cv_prog_gcc_g" 1>&6
+    if test $ac_cv_prog_gcc_g = yes; then
+      CFLAGS="-g -O"
+    else
+      CFLAGS="-O"
+    fi
+  fi
+else
+  GCC=
+  test "${CFLAGS+set}" = set || CFLAGS="-g"
+fi
+
+
+# Put a plausible default for CC_FOR_BUILD in Makefile.
+# If we cannot run a trivial program, we must be cross compiling.
+echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_c_cross'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_c_cross=yes
+else
+cat > conftest.$ac_ext <<EOF
+#line 707 "configure"
+#include "confdefs.h"
+main(){return(0);}
+EOF
+{ (eval echo configure:711: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+if test -s conftest && (./conftest; exit) 2>/dev/null; then
+  ac_cv_c_cross=no
+else
+  ac_cv_c_cross=yes
+fi
+fi
+rm -fr conftest*
+fi
+
+echo "$ac_t""$ac_cv_c_cross" 1>&6
+cross_compiling=$ac_cv_c_cross
+
+if test "x$cross_compiling" = "xno"; then
+  CC_FOR_BUILD='$(CC)'
+else
+  CC_FOR_BUILD=gcc
+fi
+
 # Check whether --enable-sim-cflags or --disable-sim-cflags was given.
 if test "${enable_sim_cflags+set}" = set; then
   enableval="$enable_sim_cflags"
@@ -809,7 +965,100 @@ if test x"$silent" != x"yes" && test x"$sim_hostendian" != x""; then
   echo "Setting hostendian flags = $sim_hostendian" 6>&1
 fi
 else
-  sim_hostendian=""
+  
+if test "x$cross_compiling" = "xno"; then
+  echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_c_bigendian'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_cv_c_bigendian=unknown
+# See if sys/param.h defines the BYTE_ORDER macro.
+cat > conftest.$ac_ext <<EOF
+#line 978 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/param.h>
+int main() { return 0; }
+int t() {
+
+#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
+ bogus endian macros
+#endif
+; return 0; }
+EOF
+if { (eval echo configure:990: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  # It does; now see whether it defined to BIG_ENDIAN or not.
+cat > conftest.$ac_ext <<EOF
+#line 994 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/param.h>
+int main() { return 0; }
+int t() {
+
+#if BYTE_ORDER != BIG_ENDIAN
+ not big endian
+#endif
+; return 0; }
+EOF
+if { (eval echo configure:1006: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  ac_cv_c_bigendian=yes
+else
+  rm -rf conftest*
+  ac_cv_c_bigendian=no
+fi
+rm -f conftest*
+
+fi
+rm -f conftest*
+
+if test $ac_cv_c_bigendian = unknown; then
+if test "$cross_compiling" = yes; then
+    { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
+else
+cat > conftest.$ac_ext <<EOF
+#line 1023 "configure"
+#include "confdefs.h"
+main () {
+  /* Are we little or big endian?  From Harbison&Steele.  */
+  union
+  {
+    long l;
+    char c[sizeof (long)];
+  } u;
+  u.l = 1;
+  exit (u.c[sizeof (long) - 1] == 1);
+}
+EOF
+{ (eval echo configure:1036: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+if test -s conftest && (./conftest; exit) 2>/dev/null; then
+  ac_cv_c_bigendian=no
+else
+  ac_cv_c_bigendian=yes
+fi
+fi
+rm -fr conftest*
+fi
+fi
+
+echo "$ac_t""$ac_cv_c_bigendian" 1>&6
+if test $ac_cv_c_bigendian = yes; then
+  cat >> confdefs.h <<\EOF
+#define WORDS_BIGENDIAN 1
+EOF
+
+fi
+  echo ac_cv_c_bigendian = $ac_cv_c_bigendian
+  if test $ac_cv_c_bigendian = yes; then
+    sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN"
+  else
+    sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN"
+  fi
+else
+  sim_hostendian="-DWITH_HOST_BYTE_ORDER=0"
+fi
 fi
 
 # Check whether --enable-sim-smp or --disable-sim-smp was given.
@@ -824,7 +1073,7 @@ if test x"$silent" != x"yes" && test x"$sim_smp" != x""; then
   echo "Setting smp flags = $sim_smp" 6>&1
 fi
 else
-  sim_smp="-DWITH_SMP=0"
+  sim_smp="-DWITH_SMP=5"
 if test x"$silent" != x"yes"; then
   echo "Setting smp flags = $sim_smp" 6>&1
 fi
@@ -838,6 +1087,9 @@ if test "${enable_sim_xor_endian+set}" = set; then
   no)	sim_xor_endian="-DWITH_XOR_ENDIAN=0";;
   *)	sim_xor_endian="-DWITH_XOR_ENDIAN=$enableval";;
 esac
+if test x"$silent" != x"yes" && test x"$sim_xor_endian" != x""; then
+  echo "Setting xor-endian flag = $sim_xor_endian" 6>&1
+fi
 else
   sim_xor_endian=""
 fi
@@ -1037,6 +1289,21 @@ else
   sim_model_issue=""
 fi
 
+# Check whether --enable-sim-stdio or --disable-sim-stdio was given.
+if test "${enable_sim_stdio+set}" = set; then
+  enableval="$enable_sim_stdio"
+  case "${enableval}" in
+  yes)	sim_stdio="-DWITH_STDIO=DO_USE_STDIO";;
+  no)	sim_stdio="-DWITH_STDIO=DONT_USE_STDIO";;
+  *)	{ echo "configure: error: "Unknown value $enableval passed to --enable-sim-stdio"" 1>&2; exit 1; }; sim_stdio="";;
+esac
+if test x"$silent" != x"yes" && test x"$sim_stdio" != x""; then
+  echo "Setting stdio flags = $sim_stdio" 6>&1
+fi
+else
+  sim_stdio=""
+fi
+
 ac_aux_dir=
 for ac_dir in `cd $srcdir;pwd`/../.. $srcdir/`cd $srcdir;pwd`/../..; do
   if test -f $ac_dir/install-sh; then
@@ -1166,80 +1433,6 @@ test "$program_transform_name" = "" && program_transform_name="s,x,x,"
 
 
 
-# Extract the first word of "gcc", so it can be a program name with args.
-set dummy gcc; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  if test -n "$CC"; then
-  ac_cv_prog_CC="$CC" # Let the user override the test.
-else
-  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
-  for ac_dir in $PATH; do
-    test -z "$ac_dir" && ac_dir=.
-    if test -f $ac_dir/$ac_word; then
-      ac_cv_prog_CC="gcc"
-      break
-    fi
-  done
-  IFS="$ac_save_ifs"
-  test -z "$ac_cv_prog_CC" && ac_cv_prog_CC="cc"
-fi
-fi
-CC="$ac_cv_prog_CC"
-if test -n "$CC"; then
-  echo "$ac_t""$CC" 1>&6
-else
-  echo "$ac_t""no" 1>&6
-fi
-
-
-echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  cat > conftest.c <<EOF
-#ifdef __GNUC__
-  yes;
-#endif
-EOF
-if ${CC-cc} -E conftest.c 2>&5 | egrep yes >/dev/null 2>&1; then
-  ac_cv_prog_gcc=yes
-else
-  ac_cv_prog_gcc=no
-fi
-fi
-
-echo "$ac_t""$ac_cv_prog_gcc" 1>&6
-if test $ac_cv_prog_gcc = yes; then
-  GCC=yes
-  if test "${CFLAGS+set}" != set; then
-    echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-if eval "test \"`echo '$''{'ac_cv_prog_gcc_g'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  echo 'void f(){}' > conftest.c
-if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
-  ac_cv_prog_gcc_g=yes
-else
-  ac_cv_prog_gcc_g=no
-fi
-rm -f conftest*
-
-fi
-
-echo "$ac_t""$ac_cv_prog_gcc_g" 1>&6
-    if test $ac_cv_prog_gcc_g = yes; then
-      CFLAGS="-g -O"
-    else
-      CFLAGS="-O"
-    fi
-  fi
-else
-  GCC=
-  test "${CFLAGS+set}" = set || CFLAGS="-g"
-fi
 
 
 
@@ -1301,6 +1494,7 @@ fi
 
 
 
+
 for ac_func in getrusage
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
@@ -1308,7 +1502,7 @@ if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1312 "configure"
+#line 1506 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1330,7 +1524,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if eval $ac_link; then
+if { (eval echo configure:1528: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -1353,126 +1547,6 @@ fi
 done
 
 
-# Put a plausible default for CC_FOR_BUILD in Makefile.
-# If we cannot run a trivial program, we must be cross compiling.
-echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&6
-if eval "test \"`echo '$''{'ac_cv_c_cross'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  if test "$cross_compiling" = yes; then
-  ac_cv_c_cross=yes
-else
-cat > conftest.$ac_ext <<EOF
-#line 1367 "configure"
-#include "confdefs.h"
-main(){return(0);}
-EOF
-eval $ac_link
-if test -s conftest && (./conftest; exit) 2>/dev/null; then
-  ac_cv_c_cross=no
-else
-  ac_cv_c_cross=yes
-fi
-fi
-rm -fr conftest*
-fi
-
-echo "$ac_t""$ac_cv_c_cross" 1>&6
-cross_compiling=$ac_cv_c_cross
-
-if test "x$cross_compiling" = "xno"; then
-  CC_FOR_BUILD='$(CC)'
-else
-  CC_FOR_BUILD=gcc
-fi
-
-
-echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
-if eval "test \"`echo '$''{'ac_cv_c_bigendian'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  ac_cv_c_bigendian=unknown
-# See if sys/param.h defines the BYTE_ORDER macro.
-cat > conftest.$ac_ext <<EOF
-#line 1398 "configure"
-#include "confdefs.h"
-#include <sys/types.h>
-#include <sys/param.h>
-int main() { return 0; }
-int t() {
-
-#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
- bogus endian macros
-#endif
-; return 0; }
-EOF
-if eval $ac_compile; then
-  rm -rf conftest*
-  # It does; now see whether it defined to BIG_ENDIAN or not.
-cat > conftest.$ac_ext <<EOF
-#line 1414 "configure"
-#include "confdefs.h"
-#include <sys/types.h>
-#include <sys/param.h>
-int main() { return 0; }
-int t() {
-
-#if BYTE_ORDER != BIG_ENDIAN
- not big endian
-#endif
-; return 0; }
-EOF
-if eval $ac_compile; then
-  rm -rf conftest*
-  ac_cv_c_bigendian=yes
-else
-  rm -rf conftest*
-  ac_cv_c_bigendian=no
-fi
-rm -f conftest*
-
-fi
-rm -f conftest*
-
-if test $ac_cv_c_bigendian = unknown; then
-if test "$cross_compiling" = yes; then
-    { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
-else
-cat > conftest.$ac_ext <<EOF
-#line 1443 "configure"
-#include "confdefs.h"
-main () {
-  /* Are we little or big endian?  From Harbison&Steele.  */
-  union
-  {
-    long l;
-    char c[sizeof (long)];
-  } u;
-  u.l = 1;
-  exit (u.c[sizeof (long) - 1] == 1);
-}
-EOF
-eval $ac_link
-if test -s conftest && (./conftest; exit) 2>/dev/null; then
-  ac_cv_c_bigendian=no
-else
-  ac_cv_c_bigendian=yes
-fi
-fi
-rm -fr conftest*
-fi
-fi
-
-echo "$ac_t""$ac_cv_c_bigendian" 1>&6
-if test $ac_cv_c_bigendian = yes; then
-  cat >> confdefs.h <<\EOF
-#define WORDS_BIGENDIAN 1
-EOF
-
-fi
-
-
-
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
@@ -1488,12 +1562,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 1492 "configure"
+#line 1566 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
-eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:1572: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   :
@@ -1502,12 +1577,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 1506 "configure"
+#line 1581 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
-eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:1587: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   :
@@ -1527,7 +1603,7 @@ else
 fi
 echo "$ac_t""$CPP" 1>&6
 
-for ac_hdr in string.h strings.h stdlib.h time.h sys/types.h sys/time.h sys/times.h unistd.h sys/resource.h
+for ac_hdr in string.h strings.h stdlib.h time.h sys/mount.h sys/types.h sys/time.h sys/times.h unistd.h sys/resource.h
 do
 ac_safe=`echo "$ac_hdr" | tr './\055' '___'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
@@ -1535,11 +1611,12 @@ if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1539 "configure"
+#line 1615 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
-eval "$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo configure:1620: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1572,7 +1649,7 @@ if eval "test \"`echo '$''{'ac_cv_header_dirent_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1576 "configure"
+#line 1653 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <$ac_hdr>
@@ -1581,7 +1658,7 @@ int t() {
 DIR *dirp = 0;
 ; return 0; }
 EOF
-if eval $ac_compile; then
+if { (eval echo configure:1662: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_header_dirent_$ac_safe=yes"
 else
@@ -1605,14 +1682,14 @@ done
 # Two versions of opendir et al. are in -ldir and -lx on SCO Xenix.
 if test $ac_header_dirent = dirent.h; then
 echo $ac_n "checking for -ldir""... $ac_c" 1>&6
-ac_lib_var=`echo dir | tr '.-/+' '___p'`
+ac_lib_var=`echo dir_opendir | tr '.-/+' '___p'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
 LIBS="-ldir  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1616 "configure"
+#line 1693 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -1620,7 +1697,7 @@ int t() {
 opendir()
 ; return 0; }
 EOF
-if eval $ac_link; then
+if { (eval echo configure:1701: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1640,14 +1717,14 @@ fi
 
 else
 echo $ac_n "checking for -lx""... $ac_c" 1>&6
-ac_lib_var=`echo x | tr '.-/+' '___p'`
+ac_lib_var=`echo x_opendir | tr '.-/+' '___p'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   ac_save_LIBS="$LIBS"
 LIBS="-lx  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1651 "configure"
+#line 1728 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -1655,7 +1732,7 @@ int t() {
 opendir()
 ; return 0; }
 EOF
-if eval $ac_link; then
+if { (eval echo configure:1736: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1752,7 +1829,7 @@ do
     echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
     exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
   -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
-    echo "$CONFIG_STATUS generated by autoconf version 2.7"
+    echo "$CONFIG_STATUS generated by autoconf version 2.8"
     exit 0 ;;
   -help | --help | --hel | --he | --h)
     echo "\$ac_cs_usage"; exit 0 ;;
@@ -1792,6 +1869,7 @@ s%@includedir@%$includedir%g
 s%@oldincludedir@%$oldincludedir%g
 s%@infodir@%$infodir%g
 s%@mandir@%$mandir%g
+s%@CC@%$CC%g
 s%@host@%$host%g
 s%@host_alias@%$host_alias%g
 s%@host_cpu@%$host_cpu%g
@@ -1807,7 +1885,7 @@ s%@build_alias@%$build_alias%g
 s%@build_cpu@%$build_cpu%g
 s%@build_vendor@%$build_vendor%g
 s%@build_os@%$build_os%g
-s%@CC@%$CC%g
+s%@CC_FOR_BUILD@%$CC_FOR_BUILD%g
 s%@HDEFINES@%$HDEFINES%g
 s%@AR@%$AR%g
 s%@RANLIB@%$RANLIB%g
@@ -1838,8 +1916,7 @@ s%@sim_monitor@%$sim_monitor%g
 s%@sim_model@%$sim_model%g
 s%@sim_default_model@%$sim_default_model%g
 s%@sim_model_issue@%$sim_model_issue%g
-s%@CC_FOR_BUILD@%$CC_FOR_BUILD%g
-s%@WORDS_BIGENDIAN@%$WORDS_BIGENDIAN%g
+s%@sim_stdio@%$sim_stdio%g
 s%@CPP@%$CPP%g
 
 CEOF
diff --git a/sim/ppc/configure.in b/sim/ppc/configure.in
index 0a51bdc..daa48b1 100644
--- a/sim/ppc/configure.in
+++ b/sim/ppc/configure.in
@@ -2,6 +2,16 @@ dnl Process this file with autoconf to produce a configure script.
 AC_PREREQ(2.3)dnl
 AC_INIT(Makefile.in)
 
+AC_PROG_CC
+
+# Put a plausible default for CC_FOR_BUILD in Makefile.
+AC_C_CROSS
+if test "x$cross_compiling" = "xno"; then
+  CC_FOR_BUILD='$(CC)'
+else
+  CC_FOR_BUILD=gcc
+fi
+
 AC_ARG_ENABLE(sim-cflags,
 [  --enable-sim-cflags=opts		Extra CFLAGS for use in building simulator],
 [case "${enableval}" in
@@ -194,7 +204,17 @@ AC_ARG_ENABLE(sim-hostendian,
 esac
 if test x"$silent" != x"yes" && test x"$sim_hostendian" != x""; then
   echo "Setting hostendian flags = $sim_hostendian" 6>&1
-fi],[sim_hostendian=""])dnl
+fi],[
+if test "x$cross_compiling" = "xno"; then
+  AC_C_BIGENDIAN
+  if test $ac_cv_c_bigendian = yes; then
+    sim_hostendian="-DWITH_HOST_BYTE_ORDER=BIG_ENDIAN"
+  else
+    sim_hostendian="-DWITH_HOST_BYTE_ORDER=LITTLE_ENDIAN"
+  fi
+else
+  sim_hostendian="-DWITH_HOST_BYTE_ORDER=0"
+fi])dnl
 
 AC_ARG_ENABLE(sim-smp,
 [  --enable-sim-smp=n			Specify number of processors to configure for.],
@@ -383,7 +403,7 @@ AC_ARG_PROGRAM
 
 AC_CONFIG_HEADER(config.h:config.in)
 
-AC_PROG_CC
+AC_SUBST(CC_FOR_BUILD)
 AC_SUBST(CFLAGS)
 AC_SUBST(HDEFINES)
 AR=${AR-ar}
@@ -420,18 +440,6 @@ AC_SUBST(sim_stdio)
 
 AC_CHECK_FUNCS(getrusage)
 
-# Put a plausible default for CC_FOR_BUILD in Makefile.
-AC_C_CROSS
-if test "x$cross_compiling" = "xno"; then
-  CC_FOR_BUILD='$(CC)'
-else
-  CC_FOR_BUILD=gcc
-fi
-AC_SUBST(CC_FOR_BUILD)
-
-AC_C_BIGENDIAN
-AC_SUBST(WORDS_BIGENDIAN)
-
 AC_CHECK_HEADERS(string.h strings.h stdlib.h time.h sys/mount.h sys/types.h sys/time.h sys/times.h unistd.h sys/resource.h)
 AC_HEADER_DIRENT