Wed Nov 4 18:42:00 1998 Dave Brolley <brolley@cygnus.com>

[deliverable/binutils-gdb.git] / sim / erc32 / ChangeLog

Tue Jun  2 15:20:35 1998  Mark Alexander  <marka@cygnus.com>

	* interf.c (sim_open): Use revamped memory_read, which makes
	byte-swapping unnecessary.  Add -sparclite-board option for
	emulating RAM found on typical SPARClite boards.  Print
	error message for unrecognized option.
	* erc32.c: Change RAM address and size from constants to variables,
	to allow emulation of SPARClite board RAM.
	(fetch_bytes, store_bytes): New helper functions for revamped
	mememory_read and memory_write.
	(memory_read, memory_write): Rewrite to store bytes in target
	byte order instead of storing words in host byte order; this
	greatly simplifies support of little-endian programs.
	(get_mem_ptr): Remove unnecessary byte parameter.
	(sis_memory_write, sis_memory_read): Store words in target
	byte order instead of host byte order.
	(byte_swap_words): Remove, no longer needed.
	* sis.h ((byte_swap_words): Remove declaration, no longer needed.
	(memory_read): Add new sz parameter.
	* sis.c (run_sim): Use revamped memory_read, which makes
	byte-swapping unnecessary.
	* exec.c (dispatch_instruction): Use revamped memory_read, which
	makes byte-swapping and double-word fetching unnecessary.
	* func.c (sparclite_board): Declare new variable.
	(get_regi): Handle little-endian data.
	(bfd_load): Recognize little-endian SPARClite as having
	little-endian data.
	
Fri May 22 14:23:16 1998  Mark Alexander  <marka@cygnus.com>

	* erc32.c (port_init): Print messages only if sis_verbose is true.
	* func.c (bfd_load): Ditto.
	* interf.c (sim_open): Ditto.

Thu May 14 23:10:48 1998  Mark Alexander  <marka@cygnus.com>

	* sis.h (uint64, int64): Define.
	* exec.c (SDIV, SDIVCC, UDIV, UDIVCC): Define new opcodes.
	* (mul64): Simplify calculation of negative result.
	* (div64): New helper function for 64-bit division.
	* (dispatch_instruction): Add emulation of SDIV, SDIVCC, UDIV,
	and UDIVCC.
	
Wed May 13 14:59:54 1998  Mark Alexander  <marka@cygnus.com>

	* erc32.c (close_port): Don't close stdin; it kills GDB.
	(byte_swap_words): New function.
	* sis.h: (byte_swap_words): Declare.
	* interf.c (run_sim): Always fetch instructions as big-endian.
	* sis.c (run_sim): Ditto.

Tue Apr 28 18:33:31 1998  Geoffrey Noer  <noer@cygnus.com>

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

Sun Apr 26 15:31:55 1998  Tom Tromey  <tromey@creche>

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

Sun Apr 26 15:20:17 1998  Tom Tromey  <tromey@cygnus.com>

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

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

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

Fri Apr 24 11:19:52 1998  Tom Tromey  <tromey@cygnus.com>

	* configure.in: Don't call sinclude.

Sat Apr 18 12:00:16 1998  Mark Alexander  <marka@cygnus.com>

	* func.c (disp_fpu): Fix build problem on big-endian hosts.

Wed Apr  8 19:33:34 1998  Mark Alexander  <marka@cygnus.com>

	* erc32.c (sim_stop): Handle SIGINT gracefully.
	* interf.c (sim_open): Don't catch SIGINT; GDB will do that for us.

Wed Apr  8 18:29:40 1998  Mark Alexander  <marka@cygnus.com>

	* exec.c (dispatch_instruction): Change how carry out is calculated
	in DIVSCC.  Add emulation of SMULCC, UMUL, and UMULCC.

Sat Apr  4 20:36:25 1998  Andrew Cagney  <cagney@b1.cygnus.com>

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

Wed Apr  1 21:19:18 1998  Mark Alexander  <marka@cygnus.com>

	* end.c: Update to version 2.7.5, fix compiler warnings and bugs.
	* erc32.c: Ditto.
	* exec.c: Ditto.
	* float.c: Ditto.
	* func.c: Ditto.
	* help.c: Ditto.
	* interf.c: Ditto.
	* sis.c: Ditto.
	* sis.h: Ditto.

Fri Mar 27 16:15:52 1998  Andrew Cagney  <cagney@b1.cygnus.com>

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

Wed Mar 25 12:35:29 1998  Andrew Cagney  <cagney@b1.cygnus.com>

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

Wed Mar 18 12:38:12 1998  Andrew Cagney  <cagney@b1.cygnus.com>

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

Tue Feb 17 12:41:11 1998  Andrew Cagney  <cagney@b1.cygnus.com>

	* interf.c (sim_store_register, sim_fetch_register): Pass in
 	length parameter.  Return -1.

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

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

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

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

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

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

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

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

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

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

Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

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

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

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

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

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

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

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

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

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

Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>

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

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

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

Tue Aug 26 10:38:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* float.c (__setfpucw): Compile on any i386 target.  Not just NT.

	* interf.c (sim_kill): Delete.
	(sim_create_inferior): Add ABFD argument.  Initialize PC from ABFD
 	argument.
	(sim_load): Don't save start address.
	(start_address): Delete variable.

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

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

Mon Aug 25 16:19:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* interf.c (sim_open): Add ABFD argument. Change ARGV to PARGV.

Mon Jun 30 11:45:25 1997  Doug Evans  <dje@canuck.cygnus.com>

	* Makefile.in (install-sis): Change $(srcdir)/sis to sis.

Wed May 28 09:46:13 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* interf.c (sim_set_callbacks): Drop SD argument - not applicable.
	(sim_open): Add callback arg, save it.

Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>

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

Tue Apr 22 11:05:01 1997  Doug Evans  <dje@canuck.cygnus.com>

	* interf.c (sim_open): Undo patch to add -E support.

Thu Apr 17 03:03:56 1997  Doug Evans  <dje@canuck.cygnus.com>

	* interf.c (sim_open): Ignore -E arg.
	(start_address): New static local.
	(sim_load): Return SIM_RC.  New arg abfd.  Set start_address from bfd.
	(sim_create_inferior): Return SIM_RC.  Delete arg start_address.

Tue Apr 15 15:16:11 1997  Ian Lance Taylor  <ian@cygnus.com>

	* Makefile.in (install-sis): Depend upon installdirs.  Use
	$(program_transform_name) directly, rather than using
	$(INSTALL_XFORM).

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

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

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

	* interf.c (sim_open): New arg `kind'.

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

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

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

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

	* configure: Re-generate.

Thu Mar 13 12:46:04 1997  Doug Evans  <dje@canuck.cygnus.com>

	* interf.c (sim_open): New SIM_DESC result.  Argument is now in
	argv form.
	(other sim_*): New SIM_DESC argument.

Tue Feb  4 13:35:20 1997  Doug Evans  <dje@canuck.cygnus.com>

	* Makefile.in (@COMMON_MAKEFILE_FRAG): Use
	COMMON_{PRE,POST}_CONFIG_FRAG instead.
	* configure.in: sinclude ../common/aclocal.m4.
	* configure: Regenerated.

Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)

	* configure configure.in Makefile.in:  Update to new configure
	scheme which is more compatible with WinGDB builds.
	* configure.in:  Improve comment on how to run autoconf.
	* configure:  Re-run autoconf to get new ../common/aclocal.m4.
	* Makefile.in:  Use autoconf substitution to install common
	makefile fragment.

Wed Dec  4 18:25:04 1996  Rob Savoye  <rob@chinadoll.cygnus.com>

	* interf.c (run_sim): Stop the simulator and reset the stdio after
	breakpoints.

Tue Dec  3 11:54:37 1996  Rob Savoye  <rob@chinadoll.cygnus.com>

	* configure.in: Look for libtermcap.a.
	* Makefile.in: Only link in -ltermcap if it exists.
	* erc32.c: Update to version 2.6a. Fix uart handling.
	* exec.c: Update to version 2.6a. Add sparclite support.
	* float.c: Update to version 2.6a. Convert comments to
	preprocessor warnings. Add __setfpucw() for i385 hosts so floating
	point exceptions work on win32.
	* func.c: Update to version 2.6a. Fix uart handling, add support
	for user error traps.
	* help.c: Update to version 2.6a. Add help note on user error
	traps.
	* interf.c: Update to version 2.6a. Fix uart handling, and add
	sparclite support.
	* examples/gccx: Use sparclite cross compiler, not native gcc.
	* examples/srt0.S: Use "mov" rather than "wr" for manipulating
	the psr register.

Mon Nov 25 08:28:10 1996  Fred Fish  <fnf@cygnus.com>

	* Makefile.in (run.o): Remove this rule, it hides the one in
	../common/Make-common.in that correctly references the source
	in the sibling ../common directory.

Wed Nov 20 01:30:12 1996  Doug Evans  <dje@canuck.cygnus.com>

	* Makefile.in: Delete stuff moved to ../common/Make-common.in.
	(SIM_{OBJS,EXTRA_LIBS,EXTRA_LIBDEPS,EXTRA_ALL,EXTRA_INSTALL}): Define.
	(SIM_{EXTRA_CLEAN,EXTRA_CFLAGS}): Define.
	* configure.in: Simplify using macros in ../common/aclocal.m4.
	Call AC_CHECK_HEADERS(stdlib.h).
	* configure: Regenerated.
	* config.in: New file.
	* func.c (sim_set_callbacks): Delete, moved to
	* interf.c (sim_set_callbacks): here.
	(sim_callback): New global.
	Rewrite all calls to printf_filtered to go through callback.
	(sim_size,sim_trace): New functions.
	(sim_{insert,remove}_breakpoint): #if 0 out.
	* sis.c: #include "config.h".  #include <stdlib.h> if present.
	(main): Coerce fprintf arg to INIT_DISASSEMBLE_INFO to fprintf_ftype.
	* sis.h: #include "callback.h".
	* run.c: Deleted, using one in ../common now.

Thu Oct  3 16:12:03 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)

	* Makefile.in (clean): Move config.log to distclean.

Wed Oct  2 16:57:57 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)

	* Makefile.in (clean): Also remove config.log.

Sat Sep 14 00:00:46 1996  Ian Lance Taylor  <ian@cygnus.com>

	* Makefile.in (CC_FOR_BUILD): New variable.
	(AR, AR_FLAGS, BISON, MAKEINFO): Remove duplicate variables.
	(RANLIB, CC): Likewise.
	(end): Use $(CC_FOR_BUILD), not $(CC).
	* configure.in: Set CC_FOR_BUILD.
	* configure: Rebuild.

Sun Sep  8 14:04:37 1996  Stu Grossman  (grossman@critters.cygnus.com)

	* erc32.c (port_init):  Disable this for __GO32__ (got no pty's
	there either...).

Mon Aug 12 17:04:58 1996  Stu Grossman  (grossman@critters.cygnus.com)

	* erc32.c:  Don't include sys/ioctl.h or sys/file.h.  They aren't
	necessary.
	* (port_init):  Don't even *try* to open pty's under _WIN32.
	* Use SIM_ADDR, not caddr_t for declaring vars that hold addresses.
	* float.c:  Get rid of #warning.  Makes Microsoft C barf.
	* interf.c (sim_open):  Cast fprintf to (fprintf_ftype) to fix
	compiler warning.
	* (sim_load sim_create_inferior sim_read):  Use prototypes only in
	decls, not defs.
	* Get rid of enum sim_stop.  It's defined in remote-sim.h.
	* (sim_stop_reason):  Define SIGTRAP if _WIN32.
	* sis.h:  Include ansidecl.h and remote-sim.h.

Wed Jul  3 16:05:23 1996  Stu Grossman  (grossman@critters.cygnus.com)

	* erc32.c (mec_reset mec_read mec_write memory_read memory_write),
	sis.h:  Get rid of all uses of long long's.
	* (close_port read_uart write_uart uarta_tx):  Don't seg fault
	when can't open pty's.
	* exec.c:  Add two new instructions: smul, and divscc.
	* interf.c (flush_windows):  New routine to flush the register
	windows out to the stack just before returning to GDB.  Makes
	backtraces work much better.

Wed Jun 26 12:19:11 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)

        * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
        INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
        (docdir, oldincludedir): Removed.
        * configure.in (AC_PREREQ): autoconf 2.5 or higher.
        (AC_PROG_INSTALL): Added.
        * configure: Rebuilt.

Mon Jun 24 14:19:07 1996  Ian Lance Taylor  <ian@cygnus.com>

	* configure.in: Call AC_PROG_CC before running configure.host.
	* configure: Rebuild with autoconf 2.10.

Tue Jun  4 10:37:12 1996  Tom Tromey  <tromey@csk3.cygnus.com>

	* Makefile.in (install): Don't check to see if tooldir exists.
	Make $(tooldir) and $(tooldir)/bin.

Mon Jun  3 12:33:38 1996  Ian Lance Taylor  <ian@cygnus.com>

	* Makefile.in (end.h): Use explicit ./ when running end.

Sun May 19 21:05:31 1996  Rob Savoye  <rob@chinadoll.cygnus.com>

	* func.c(bfd_load): Don't try to print the filename if the pfbd is
	NULL.
	* interf.c(sim_load): Pass the whole string, not just the first
	byte.

Version 2.1 26-02-96
--------------------
 
* Fixed bug in "go" command.
 
version 2.0 05-02-96
--------------------

* Fixed bug in interrupt force register (erc32.c).

* Change file load function to use bfd_openr.

* SIS should now be endian independent.

version 1.8 24-11-95
--------------------

* Fixed FPU timing - some sequences of FPU instructions did not calculate
  the resource dependencies right.

* Corrected STDFQ when qne = 0 (again!). The ftt is set to sequence_error
  but no FPU trap is generated.

version 1.7.1 31-10-95
--------------------

* Corrected STDFQ when qne = 0. Now, a trap is immidiately generated but
  the FPU stays in execute mode.

* Corrected JMPL and RETT timing (these instructions takes two cycles).


version 1.7 25-10-95
--------------------

* Interrupt during annuled instruction corrupted return address - fixed.


version 1.6.2 25-10-95
--------------------

* Added -DFAST_UART to Makefile
 

version 1.6.1 24-10-95
--------------------
 
* Fixed bug in STDFQ which caused bus error


version 1.6 02-10-95
--------------------
 
* Modified srt0.s to include code that initiates registers in IU and FPU
  and initializes the data segment. The simulator 'load' command does not
  longer initialize the data segment!

* Corrected MEC timer operation; scalers now divide the frequency by 
  (scaler_value + 1).

* MEC breakpoints are not checked during store operation


version 1.5 14-09-95
--------------------

* Fixed some bugs in the cycle counting for IU & FPU instructions.

* Fixed bug that allowed an annuled instruction to cause memory exception.

* The *ws parameter in mem.c should now contain the number of waitstates
  required by the memory access (was total number of cycles).

* The supplied srt0.s now clears the BSS (thanks Joel).

version 1.4 22-08-95
--------------------

* Added a '-g' switch to enable/disable the GNU readline(), which cause
some problems on solaris 2.x machines.

* Enabled MEC watchpoint and breakpoint function to mem.c. Performance 
may suffer a bit ...

NOTE: The UARTs are now connected to /dev/ttypc and /dev/ttypd.

version 1.3 26-07-95
--------------------

* Fixed bug in mulscc instruction (how could that ever have worked?)

* Fixed bug in UART B (flushed characters on UART A), thanks Paul.

version 1.2 13-07-95
--------------------

* Fixed bug in interrupt handling (wrong interrupt selected when more that
one interrupt pending)

* Fixed updating of condition codes during logical instructions (carry and
overflow were not reset)

* Fixed bug in WRTBR (tt field was wrongly over-written)

version 1.1 07-07-95
--------------------

* Fixed several bugs in the interrupt handler and callback routines.
(reported by Paul Warren, Alsys)