old-cross-binutils/sim/ppc/ChangeLog

Thu Oct 12 11:35:53 1995  Michael Meissner  <meissner@tiktok.cygnus.com>

	* 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@kremvax>

        * 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@kremvax>

	* 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@kremvax>

	* 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@kremvax>

	* ppc-instructions (fmul, fmuls): correct instruction format - had
 	FRB instead of FRC.

Wed Oct  4 17:31:12 1995  Andrew Cagney  <cagney@kremvax>

	* 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 - aka Noid  <cagney@kremvax>

	* 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>

	* 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.

Wed Sep  6 13:25:42 1995  Andrew Cagney - aka Noid  <cagney@kremvax>
 
 	* 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}.

Wed Sep  6 00:46:10 1995  Andrew Cagney - aka Noid  <cagney@kremvax>

	* 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).

Thu Aug 24 14:48:54 1995  Michael Meissner  <meissner@tiktok.cygnus.com>

	* Makefile.in (install): Fix install rule.

Tue Aug 22 09:31:18 1995  Michael Meissner  <meissner@tiktok.cygnus.com>

	* system.c (system_call): Add read support.

	* main.c (main): -t sets trace_device_tree.  Correct usage message
	to current reality.

	* 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.

	* core.c (create_core_from_addresses): Print end address in traces
	and make tracing output line up.

	* Makefile.in: Rewrite from Makefile to work with the Cygnus
	environment, and support compiling in a different directory than
	the sources reside in.

	* 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.

	* ppc-endian.c: Rename to be consistant with ppc-endian.h.
	Include ppc-endian.h, not endian.h.

	* basics.h (sysdep.h): Include sysdep.h that configure makes.
	Include ppc-endian.h, not endian.h.

	* 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.

	* configure.in: Clone from other simulator targets.
	* configure: Generate via autoconf from configure.in.

Sat Aug 19 09:05:32 1995  Andrew Cagney - aka Noid  <cagney@kremvax>

	* ppc-instructions: fix srawi (was geting XER[CA] real wrong).

	* interrupts.c (data_storage_interrupt): allow stack to grow by
        upto one MB per increment.

	* ppc-instructions: divw was computing rA / rA not rA / rB

	* main.c (main): really stupid. Wasn't exiting with correct status

Fri Aug 18 00:38:01 1995  Andrew Cagney - aka Noid  <cagney@kremvax>

	* system.c (system_call): add system calls kill(2) and getpid(2).

	* main.c (main): Check/return exit status when simulation
        finishes.

Thu Aug 17 14:29:18 1995  Andrew Cagney  <cagney@kremvax>

	* 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).

	* system.c (system_call) SYS_exit: Wasn't exiting with correct status.

Thu Aug 17 01:16:38 1995  Andrew Cagney - aka Noid  <cagney@kremvax>

	* vm.c (DEFINE_VM_DATA_MAP_WRITE_N): For miss aligned transfer
        forgot to return.

	* system.c (system_call): didn't page align break argument before
        determining increment break increment.

	* 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.

	* devices.c, device_tree.c: Added code that provides a simple
        illustration of how an interrupt control device could be
        implemented.

	* devices.c: Added code so that the dumb console device can read
        (from stdin) as well as write to stdout.