[external/binutils.git] / sim / sh / ChangeLog

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

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

Mon May 15 22:04:51 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

sh-dsp support, simulator speedup by using host byte order:

        * Makefile.in (interp.o): Depends on ppi.c .
        (ppi.c): New rule.
        * gencode.c (printonmatch, think, genopc): Deleted.
        (MAX_NR_STUFF): Now 42.
        (tab): Add SH-DSP CPU instructions.
        Amalgamate ldc / stc / lds / sts instructions with similar
        bit patterns.  Fix opcodes of stc Rm_BANK,@-<REG_N>.
        Fix semantics of lds.l @<REG_N>+,MACH (no sign extend).
        (movsxy_tab): New array.
        For movs, change MMMM field to GGGG, and mmmm field to MMMM.
        Added entries for movx, movy and parallel processing insns.
        (ppi_tab): New array.
        (qfunc): Stabilize sort.
        (expand_opcode): Handle [01][01]NN, [01][01]xx and [01][01]yy.
        Handle 'M', 'G' 's' 'X', 'a', 'Y' and 'A'.
        (dumptable): Now takes three arguments.  Changed all callers.
        Emit just one contigous jump table.
        (filltable): Now takes an argument.  Changed all callers.
        Make index static.
        (ppi_moves, expand_ppi_code, ppi_filltable, ppi_gensim): New functions.
        (gensim_caselist): New function, broken out of gensim.
        Handle opcode fields 'x', 'y', 's', 'M', 'G', 'X', 'a', and 'Y'.
        Handle ref '9'.
        (gensim): Handle 'N' in code field and '8' in refs field.
        Call gensim_caselist - twice.
        (ppi_index): New static variable.
        (main): Unsupport default action.
        Add dsp support for -x / -s option.  Add -p option.
        * interp.c (sh_jump_table, sh_dsp_table, ppi_table): Declare.
        (saved_state_type): Rearrange to allow amalgamated ldc / stc /
        lds / sts to work efficiently.
        (target_dsp): New static variable.
        (GBR, VBR, SSR, SPC, MACH, MACL): Reflect saved_state_type change.
        (FPUL, Rn_BANK, SET_Rn_BANK, M, Q, S, T, SR_BL, SR_RB): Likewise.
        (SR_MD, SR_RC, SET_SR_BIT, GET_SR, SET_RC, GET_FPSCR): Likewise.
        (RS, RE, MOD, MOD_ME, DSP_R): Likewise.
        (set_fpscr1): Likewise.  Use target_dsp to check for dsp.
        (MOD_MSi, SIG_BUS_FETCH): Deleted.
        (CREG, SREG, PR, SR_MASK_DMY, SR_MASK_DMX, SR_DMY): New macros.
        (SR_DMX, DSR, MOD_DELTA, GET_DSP_GRD): Likewise.
        (SET_MOD): Reflect saved_state_type change.  Set MOD_DELTA instead
        of MOD_MS, and encode SR_DMY / SR_DMX into high word of MOD_ME.
        (set_sr): Reflect saved_state_type change.  Fix SR_RB handling.
        Use SET_MOD.
        (MA, L, TL, TB): Now controlled by ACE_FAST.
        (SEXT32): Just cast to int.
        (SIGN32): Fixed to only shift by 31.
        (CHECK_INSN_PTR): SIGBUS at insn fetch now represented by insn_end 0.
        (ppi_insn): Declare.
        (ppi.c): Include.
        (init_dsp): Set target_dsp.  When it changes, switch end of
        sh_jump_table with sh_dsp_table.
        (sim_resume) Don't declare sh_jump_table0.  Use sh_jump_table instead.
        Don't Declare PR if it's #defined.
        Fix single-stepping (Was broken in Mar  6 16:59:10 patch).
        (sim_store_register, sim_read_register): Translate accesses to
        reflect saved_state_type change.

        * interp.c (set_sr): Set sr.
        (SET_RC, MOD, MOD_MS, MOD_ME, SET_MOD, MOD_MS, MOD_ME): New macros.
        (set_fpscr1): Don't bank-switch fpu registers when simulating sh-dsp.
        (DSP_R): Fix definition.
        (sim_resume): Remove outdated SET_SR use.

        * interp.c (saved_state): New members for struct member asregs:
        rs, re, insn_end, xram_start, yram_start.
        (struct loop_bounds): New struct.
        (SKIP_INSN): New macro.
        (get_loop_bounds): New function.
        (endianw): Renamed to global_endianw.
        (maskw): negated bits.
        (PC): Now insn_ptr.
        (SR_MASK_RC, SR_RC_INCREMENT, SR_RC, RAISE_EXCEPTION): New macros.
        (RS, RE, DSP_R, DSP_GRD, A1, A0, X0, X1, Y0, Y1, M0, A1G): Likewise.
        (M1, A0G, RIAT, PT2H, PH2T, SET_NIP, CHECK_INSN_PTR): Likewise.
        (SIG_BUS_FETCH): Likewise
        (raise_exception, riat_fast): New functions.
        (raise_buserror, sim_stop): Use raise_exception.
        (PROCESS_SPECIAL_ADDRESS): Use xram_start / yram_start.
        (BUSERROR, WRITE_BUSERROR, READ_BUSERROR):
        Reverse sense of mask argument.
        (FP_OP, set_dr): Use RAISE_EXCEPTION.
        (wlat_fast, wwat_fast, wbat_fast, rlat_fast, rwat_fast, rbat_fast):
        Declare.  Remove redundant masking.
        (wwat_fast, rwat_fast): Add argument endianw.  Changed callers.
        (MA): Updated for change pc -> PC.
        (Delay_Slot): Use RIAT.
        (empty): Deleted.
        (trap): Remove argument little_endian.  Add argument endianw.
        Changed all callers.  Use raise_exception.
        (macw): Add argument endainw.  Changed all callers.
        (init_dsp): New function, extended after broken out of init_pointers.
        (sim_resume): Replace pc with insn_ptr.  Replace little_endian with
        endianw.  Replace nia with nip.  Reverse sense of maskb / maskw /
        maskl.  Implement logic for zero-overhead loops.  Don't try to
        interpret garbage when getting a SIGBUS at insn fetch.
        (sim_open): Call init_dsp.
        * gencode.c (tab): Use SET_NIP instead of nia = .  Use PH2T / PT2H /
        RAISE_EXCEPTION where appropriate.
        Add extra cycles for brai, braf , bsr, bsrf, jmp, jsr.

        * interp.c (sim_store_register, sim_fetch_register):
        Do proper endianness switch.

        * interp.c (saved_state_type): New members for struct member asregs:
        xymem_select, xmem, ymem, xmem_offset, ymem_offset.
        (special_address): Delete.
        (BUSERROR): Now a two-argument predicate.
        (PROCESS_SPECIAL_ADDRESS, WRITE_BUSERROR, READ_BUSERROR): New macros.
        (wlat_little, wwat_little, wbat_any, wlat_big, wwat_big): Delete.
        (process_wlat_addr, process_wwat_addr): New functions.
        (process_wbat_addr, process_rlat_addr, process_rwat_addr): Likewise.
        (process_rbat_addr): Likewise.
        (wlat_fast, wwat_fast, wbat_fast): Use WRITE_BUSERROR.
        (rlat_little, rwat_little, rbat_any, rlat_big, rwat_big): Delete.
        (rlat_fast, rwat_fast, rbat_fast): Use READ_BUSERROR.
        (RWAT, RLAT, RBAT, WWAT, WLAT, WBAT): Delete SLOW versions.
        (do_rdat, trap): Delete SLOW code.
        (SEXT32, SIGN32): New macros.
        (swap, swap16): Now integer in - integer out.  Changed all callers.
        (strswaplen, strnswap): Delete SLOW versions.
        (init_pointers): Initialize dsp memory selection (preliminary).
        (sim_store_register, sim_fetch_register): Use swap instead of
        big / little endian read / write functions.

        * interp.c (maskl): Deleted.
        (endianw, endianb): New variables.
        (special_address): Now inline.
        (bp_holder): Put raising of buserror there, rename to:
        (raise_buserror).
        (BUSERROR): Now yields a value.  Changed all users.
        (wbat_big): Delete.
        (wlat_fast, wwat_fast, wbat_fast): New functions.
        (rlat_fast, rwat_fast, rbat_fast): Likewise.
        (RWAT, RLAT, RBAT, WWAT, WLAT, WBAT): Use new functions.
        (do_rdat, do_wdat): Likewise.  Take maskl argument instead of
        little_endian one.  Changed caller macros.
        (swap, swap16): Use w[rw]lat_big / w[rw]lat_little directly.
        (strswaplen, strnswap): New functions.
        (trap): Use them to fix up endian mismatches;
        disable SYS_execve and SYS_execv; fix double address translation for
        SYS_pipe and SYS_stat.
        (sym_write, sym_read): Add endianness translation.
        (sym_store_register, sym_fetch_register): Add maskl local variable.
        (sim_open): Set endianw and endianb.

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

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

Wed Aug 25 07:55:23 1999  Brendan Kehoe  <brendan@cygnus.com>

        * gencode.c (fcnvds <DR_N>,FPUL): Rewrite to use a local anonymous
        union type, instead of casting to an int* then a float*.
        (fcnvsd FPUL,<DR_N>): Likewise.
        (flds <FREG_N>,FPUL): Likewise.
        (fsts FPUL,<FREG_N>): Likewise.

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

        * configure: Regenerated to track ../common/aclocal.m4 changes.
        
1999-04-02  Keith Seitz  <keiths@cygnus.com>

        * interp.c (POLL_QUIT_INTERVAL): Define. Used to tweak the
        frequency at which the poll_quit callback is called.
        (sim_resume): Use POLL_QUIT_INTERVAL instead of a
        hard-coded value.

Thu Sep 10 02:16:39 1997  J"orn Rennecke <amylaar@cygnus.co.uk>

        * interp.c (saved_state.asregs): Add new member pad_dummy.
        (sim_store_register, sim_fetch_regsiter): Add 1 to rn for use
        as index into saved_state.asints.

Mon Jun 29 19:35:24 1998  Jason Molenda  (crash@bugshack.cygnus.com)

        * interp.c (sim_open): set endianness based on the ABFD if a -E
        option is not present and we have an ABFD.

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 15:19:48 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 11:18:35 1998  Tom Tromey  <tromey@cygnus.com>

        * configure.in: Don't call sinclude.

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

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

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 12:49:44 1998  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (sim_fetch_register, sim_store_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.

Wed Oct 22 14:43:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (sim_load): Pass lma_p and sim_write args to
        sim_load_file.

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.

Tue Sep  9 20:52:21 1997  Felix Lee  <flee@cygnus.com>

        * interp.c (sim_resume): poll_quit() at least once per call;
        otherwise gdb can loop sim_resume() uninterruptably.

Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>

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

Tue Sep  2 13:15:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gencode.c (tab): Order instructions according to SH3 document.

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 10:41:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (sim_kill): Delete.
        (sim_create_inferior): Add ABFD argument.
        (sim_load): Move setting of PC from here.
        (sim_create_inferior): To here.

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 16:17:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (sim_open): Add ABFD argument.

Mon Jun 23 15:49:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (get_dr): Avoid SIGFPE by moving integers instead of
        FP's around.
        (set_dr): Ditto.
        
Mon Jun 23 15:02:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (XD, SET_XD): Delete.
        (XF, SET_XF, XD_TO_XF): Define, move around registers in either
        FP bank.
        
        * gencode.c (fmov): Update.

Sun Jun 22 19:33:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (set_fpscr1): From J"orn Rennecke
        <amylaar@cygnus.co.uk>, Fix typo. Ditto for comment.
        
Tue Aug 12 00:19:11 1997  J"orn Rennecke <amylaar@cygnus.co.uk>

        * interp.c (special_address): New function.
        (BUSERROR): Call it.  Added parameters bits_written and data.
        Changed all callers.
        * gencode.c (tab): Fixed ocbwb and pref.

Fri Jun 20 22:03:18 1997  J"orn Rennecke <amylaar@cygnus.co.uk>

        * interp.c (do_wdat, do_wdat): Fix bug in register number calculation.

Thu Jun 19 00:28:08 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (sim_create_inferior): Clear registers each time an
        inferior is started.

Mon Jun 16 14:01:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (*FP, FP_OP, FP_CMP, FP_UNARY): Provide a hook for
        when a host doesn't support IEEE FP.
        (*DP): Provide alternative definition that supports 64bit floating
        point.
        (target_little_endian): Combine little_endian and little_endian_p.
        (saved_state_type): Make fpscr and sr simple integers.
        (SET_FPSCR, GET_FPSCR): Use macros to update fpscr register.
        (set_fpscr1): New function.  Handle swapping when PR / FR bits
        changed. Call via *_FPSCR macro.
        (SET_SR*, GET_SR*): Use macro's to access the SR bits - avoids
        endian problems.

        * gencode.c (tab): Update.
        
Sun Jun 15 15:22:52 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gencode.c (main): Perform basic checks on tab entries.

        * Makefile.in (gencode): Always compile with -g.

Sat Jun 14 13:45:09 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gencode.c (gensim): Move ref checking code to before `stuff'.
        For branches with delay slots refs were not being checked.

        * interp.c (sim_resume): Use nia to specify the next instruction
        address instead of overloading pc.
        (C): Delete definiton - refer to cycles directly.
        (SEXT12): New macro - sign extend a 12 bit quantity.
        (Delay_Slot): Rename from SL.

        * gencode.c (tab): Update/simplify.
        
        * gencode.c (gensim): Better formatting of output code.
        (gensim): Replace 10 with constant MAX_NR_STUFF- define as 15.
        (tab): Sort alphabetically.  Break `stuff' into multiple lines.

Fri Jun 13 22:10:13 1997  J"orn Rennecke <amylaar@cygnus.co.uk>

        * gencode.c (braf, bsrf): Fix branch destination calculation to
        be in accordance with the documentation.

Fri Jun 13 15:33:53 1997  J"orn Rennecke <amylaar@cygnus.co.uk>

        * interp.c (init_pointers): Fix little endian test.

Thu Jun  5 12:56:08 1997  J"orn Rennecke <amylaar@cygnus.co.uk>

        * interp.c (init_pointers): SH4 hardware is always WORDS_BIT_ENDIAN.
        * gencode (fmov from/to memory): take endian_mismatch into account
        for 32 bit moves too.

Wed May 28 23:42:35 1997  J"orn Rennecke <amylaar@cygnus.co.uk>

        * gencode.c (swap.b): Fix treatment of high word.

Wed May 28 23:42:35 1997  J"orn Rennecke <amylaar@cygnus.co.uk>

        * sh/gencode.c,
        * interp.c: experimental SH4 support.
        DFmode moves are probaly broken for target little endian.

Tue May 20 10:23:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (sim_open): Add callback argument.
        (sim_set_callbacks): Delete SIM_DESC argument.

Wed Apr 30 11:38:08 1997  Doug Evans  <dje@canuck.cygnus.com>

        * Makefile.in (SIM_EXTRA_CLEAN): Define.
        (clean targets): Delete.
        (sh-clean): New target.

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

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

Wed Apr 23 17:55:22 1997  Doug Evans  <dje@canuck.cygnus.com>

        * tconfig.in: New file.
        * interp.c (sim_open): Handle missing arg to -E.

Tue Apr 22 08:55:35 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * Makefile.in:  Add clean targets.

Fri Apr 18 18:57:04 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * interp.c:  Include float.h and define SIGTRAP if _WIN32.
        WIN32 -> _WIN32.
        * (trap):  Do do SYS_chown for _WIN32.

Fri Apr 18 13:33:09 1997  Doug Evans  <dje@canuck.cygnus.com>

        * interp.c (sim_resume): Fix argument to poll_quit.

Fri Apr 18 14:14:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * interp.c (sim_stop): New function.
        (sim_resume): Use poll_quit for polling.

Thu Apr 17 03:32:04 1997  Doug Evans  <dje@canuck.cygnus.com>

        * Makefile.in (SIM_OBJS): Add sim-load.o.
        * interp.c (target_byte_order): Delete.
        (sim_kind, myname, little_endian_p): New static locals.
        (init_pointers): Use little_endian_p instead of target_byte_order.
        (sim_resume): Likewise.
        (sim_open): Set sim_kind, myname.  Set little_endian_p from -E arg.
        (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
        load file into simulator.  Set start address from bfd.
        (sim_create_inferior): Return SIM_RC.  Delete arg start_address.

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>

        * interp.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.

Wed Mar 19 09:34:36 1997  Fred Fish  <fnf@cygnus.com>

        * interp.c (sim_do_command): Check for NULL command or empty
        string and handle it the same as a "help" command.  Use callback
        to print error message for unrecognized commands.  Replace
        hardcoded tab in literal string with a \t.  Other minor code
        cleanup.

Wed Mar 19 01:14:00 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.

Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>

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

Thu Mar 13 13:00:00 1997  Doug Evans  <dje@canuck.cygnus.com>

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

Tue Feb  4 13:33:30 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 Nov 20 02:04:32 1996  Doug Evans  <dje@canuck.cygnus.com>

        * Makefile.in: Delete stuff moved to ../common/Make-common.in.
        (SIM_OBJS,SIM_EXTRA_LIBS): Define.
        * configure.in: Simplify using macros in ../common/aclocal.m4.
        Call AC_CHECK_HEADERS(unistd.h).
        * configure: Regenerated.
        * config.in: New file.
        * interp.c: #include "config.h".  #include <unistd.h> if present.
        (trap): Fetch errno value with callback->get_errno.

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

        * interp.c: Don't include windows polling code if inside simluator.

Fri Sep 20 14:57:50 1996  Stan Shebs  <shebs@andros.cygnus.com>

        * interp.c: Minor formatting improvements.
        (saved_state_type): Add bank registers.
        (bp_holder): New function, use to break on when debugging BUSERROR.
        (BUSERROR): Call it if bus error occurs.

Wed Jun 26 12:29:22 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): Removed.
        * configure.in (AC_PREREQ): autoconf 2.5 or higher.
        (AC_PROG_INSTALL): Added.
        * configure: Rebuilt.

Thu May 16 15:44:29 1996  Ian Lance Taylor  <ian@cygnus.com>

        * interp.c (saved_state_type): Add memstalls field.
        (MA) Define macro.
        (sim_resume): New local variable memstalls.  Add it back in to
        saved_state at the end of the function.
        (sim_info): Report memstalls.
        * gencode.c (tab): Add MA() to the execution string of all
        instructions which access memory.

Wed Feb 21 12:16:41 1996  Ian Lance Taylor  <ian@cygnus.com>

        * configure: Regenerate with autoconf 2.7.

Tue Dec  5 16:38:55 1995  Stu Grossman  (grossman@cygnus.com)

        * gencode.c (mac.l):  Don't abort GDB if executing mac.l
        instruction (which is unimplemented).  Generate a SIGTRAP (in the
        simulated target) instead.

Mon Dec  4 12:22:24 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

        * gencode.c (tab): Added several sh3 opcodes.
        (think): Added printonmatch for A_SSR and A_SPC.
        * interp.c (SSR, SPC): Added definitions.
        (saved_state_type): Added ssr and spc registers.

Wed Nov 29 12:39:27 1995  Jim Wilson  <wilson@chestnut.cygnus.com>

        * gencode.c (tab): In shad/shld definitions, negate R[m] before
        the and operation instead of after.  For shad delete cast.  For shld
        use UR instead of R and delete cast.

Fri Nov 17 12:48:55 1995  Jim Wilson  <wilson@chestnut.cygnus.com>

        * gencode.c (tab): Add explicit NaN support for ftrc instruction.

Wed Nov 15 11:25:27 1995  Stu Grossman  (grossman@cygnus.com)

        * interp.c:  Make target_byte_order be extern to prevent SGI cc from
        issuing warnings about the use of common symbols.

Tue Nov 14 15:19:43 1995  Stu Grossman  (grossman@cygnus.com)

        * gencode.c:  jsr, bsr and bsrf actually save pc+4 in pr, and rts
        actually uses pr+0.

Sat Oct 21 13:01:18 1995  Jim Wilson  <wilson@chestnut.cygnus.com>

        * sh/interp.c (sim_stop_reason): Catch SIGQUIT and indicate
        program exited.
        (sim_get_quit_code): Delete.
        
        * gencode.c (gensim): Indicate SIGILL instead of calling abort for
        default case.

Mon Oct 16 18:24:03 1995  Jim Wilson  <wilson@chestnut.cygnus.com>

        * interp.c (saved_state_type): Move FP registers to immediately
        after SR.

Tue Oct 10 11:12:15 1995  Fred Fish  <fnf@cygnus.com>

        * Makefile.in (BISON): Remove macro.

Fri Oct  6 12:08:18 1995  Jim Wilson  <wilson@chestnut.cygnus.com>

        * interp.c (trap, case SYS_utime): Cast second arg of utime to
        void * to avoid compiler error.
        
        * interp.c (callback): Remove last change.  It is initialized by
        a sim_set_callbacks call.
        
Thu Oct  5 14:13:29 1995  steve chamberlain  <sac@slash.cygnus.com>

        * interp.c (callback): Initialize to default callback.

Thu Sep 28 15:26:59 1995  steve chamberlain  <sac@slash.cygnus.com>

        * run.c: Moved to ../common.
        * interp.c (trap): Use gdb's callback interface.
        * Makefile.in: Updated.

Wed Sep 20 13:35:13 1995  Ian Lance Taylor  <ian@cygnus.com>

        * Makefile.in (maintainer-clean): New synonym for realclean.

Wed Sep 20 09:51:50 1995  steve chamberlain  <sac@slash.cygnus.com>

        * run.c (sim_callback_write_stdout):  New.
        * interp.c (trap): Call sim_callback_write_stdout when needed.

Mon Sep 18 18:42:27 1995  steve chamberlain  <sac@slash.cygnus.com>

        * interp.c (trap): Remove useless code.

Fri Sep 15 19:30:05 1995  steve chamberlain  <sac@slash.cygnus.com>

        * syscall.h: Copy from newlib.

Thu Sep 14 19:32:59 1995  Stu Grossman  (grossman@cygnus.com)

        * gencode.c:  Back up PC by 2 for breakpoints.
        * interp.c:  Move fp regs beyond pc/pr/etc to avoid confusing GDB,
        which expect pc to immediatly follow regs[].

Fri Sep  8 14:18:13 1995  Ian Lance Taylor  <ian@cygnus.com>

        * configure.in: Define CC_FOR_BUILD.  Don't call AC_PROG_INSTALL.
        * configure: Rebuild.
        * Makefile.in (INSTALL): Revert to using install.sh.
        (INSTALL_PROGRAM, INSTALL_DATA): Set to $(INSTALL).
        (INSTALL_XFORM, INSTALL_XFORM1): Restore.
        (CC_FOR_BUILD): Restore.
        (gencode): Build using $(CC_FOR_BUILD).
        (install): Don't install in $(tooldir).

Thu Sep  7 15:02:31 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

        (Try to) Update to new bfd autoconf scheme.
        * run.c: Don't include sysdep.h.
        * Makefile.in (INSTALL{,_PROGRAM,_DATA}): Use autoconf computed value.
        (CC, CFLAGS, AR, RANLIB): Likewise.
        (HDEFINES, TDEFINES): Define.
        (CC_FOR_BUILD): Delete.
        (host_makefile_frag): Delete.
        (Makefile): Don't depend on frags.
        * configure.in (sysdep.h): Don't create symlink.
        (host_makefile_frag, frags): Deleted.
        (CC, CFLAGS, AR, RANLIB, INSTALL): Compute values.
        * configure: Regenerated.

Thu Aug 31 12:39:07 1995  Jim Wilson  <wilson@chestnut.cygnus.com>

        * interp.c: Include <math.h>.

Wed Aug 30 22:05:17 1995  Jeff Law  (law@snake.cs.utah.edu)

        * Makefile.in (run): Link in math library too.
        * gencode.c (gensim): abort if an unknown opcode is encountered.
        * interp.c (FPSCR, FPUL): Define.
        (struct save_state): Add fields for floating point registers,
        FPSCR and FPUL.
        (sim_resume): Add 'F' for accessing floating point registers
        in the save state structure.
        * gencode.c: Add sh3e opcodes.
        (gensym): Define a buffer for int<->fp conversions.

Tue Aug 22 14:16:46 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

        * interp.c (trap): Use trap vector 34 for host system interface.
        * gencode.c: Add 34 to conditional which determines which traps
        will be handled by simulator.

Fri Aug 11 17:59:15 1995  Jim Wilson  <wilson@chestnut.cygnus.com>

        * run.c: Include <signal.h>.  Define SIGQUIT if not defined.
        (main): New variables reason and sigrc.  After simulator exits,
        check to see if it exited because of a signal, and if so, then
        use the signal number as the return value.

Thu Aug  3 10:45:37 1995  Fred Fish  <fnf@cygnus.com>

        * Update all FSF addresses except those in COPYING* files.

Tue Jul 18 23:33:10 1995  Fred Fish  <fnf@fishbowl>

        * interp.c (trap): Only use SYS_execv if defined.  Might be
        implemented as execve(arg1,arg2,0), as with Unixware 2.0.
        (sim_resume): In sbit initializer, cast shifted arg to unsigned
        to avoid signed integer overflow.

Wed Jul  5 14:32:54 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

        * Makefile.in (clean): Remove run, libsim.a.
          (distclean, mostlyclean, realclean): Remove Makefile and 
          autoconf files.

        * sh.mt: Removed.

        * Makefile.in, configure.in: converted to autoconf.
        * configure: New file, generated with autconf 2.4.

Fri Jun 30 16:51:38 1995  Stan Shebs  <shebs@andros.cygnus.com>

        * interp.c (sim_open): If argument supplied, interpret as
        desired memory size.
        (parse_and_set_memory_size): New function.
        (sim_do_command): New function.

Thu Jun 29 10:02:28 1995  Fred Fish  <fnf@deneb.cygnus.com>

        * interp.c  (SYS_wait): Define as SYS_wait4 if available and
        SYS_wait is not already defined (SunOS 4.1.3 for example).
        (SYS_utime): Define as SYS_utimes if available and
        SYS_utime is not already defined.

Thu Jun 22 17:25:57 1995  Steve Chamberlain  <sac@slash.cygnus.com>

        * interp.c: Don't include sys/times.h or sys/param.h

Wed Jun 21 15:03:49 1995  Steve Chamberlain  <sac@slash.cygnus.com>

        * interp.c (SIGBUS, SIGTERM): Define if not.
        (sim_memory_size): default to 2^19 on PCs.
        (sim_resume): Poll for quits on win32.

Wed May 24 16:22:48 1995  Jim Wilson  <wilson@chestnut.cygnus.com>

        * gencode.c (op_tab): Add SH3 support.

Wed May 24 14:07:11 1995  Steve Chamberlain  <sac@slash.cygnus.com>

        * gencode.c (tab): Add bsrf and braf.

Mon Apr 24 15:09:49 1995  Jason Molenda  (crash@cygnus.com)

        * configure.in: use ../../bfd/hosts/std-host.h, not 
        ../bfd/hosts/std-host.h (which doesn't exist).

Mon Mar 27 10:32:34 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

        * run.c: parse arguments with getopt().

Sun Feb 26 15:27:24 1995  Steve Chamberlain  <sac@cygnus.com>

        * configure.in: Use ../../bfd/hosts/std-host.h if specific
        host unavailable.

Mon Jan 23 16:10:58 1995  Torbjorn Granlund  <tege@rtl.cygnus.com>

        * interp.c (macw): Sign extend MACH at bit 10 for non-saturating case.

Sun Jan 22 13:55:36 1995  Torbjorn Granlund  <tege@rtl.cygnus.com>

        * gencode.c (op_tab): Make MAC.W call macw, not abort.
        * interp.c (macw): New function.
        (S): New #define.

Sat Jan 21 15:52:30 1995  Torbjorn Granlund  <tege@rtl.cygnus.com>

        * gencode.c (op_tab): New code for ADDV and SUBV.
        Make MAC.L abort sicne it is not implemented.

        * interp.c (dmul): Handle the signed case by adjusting after unsigned multiply.
        Get rid of __GNUC__ conditional.

aThu Jan 19 05:50:50 1995  Torbjorn Granlund  <tege@rtl.cygnus.com>

        * gencode.c (op_tab): Also replace NEGC, and try again with SUBC.
        Change ADDC for symmetry.

        * gencode.c (op_tab): Replace code for ADDC and SUBC.

Mon Jan  9 15:43:53 1995  Stu Grossman  (grossman@cygnus.com)

        * interp.c:  Remove def of INLINE.  This comes from bfd.h.  Also,
        declare IOMEM before using it.

Wed Dec 28 21:25:31 1994  Steve Chamberlain  (sac@jonny.cygnus.com)

        * interp.c (BUSERROR): New macro.
        ([r|w][bwl]at[little|big]) New functions.
        (sim_resume): If GO32 check for interrupt every now
        and again.  Decrement PC if SIGBUS seen.
        * run.c (main):  Return result of simulated _exit.

Mon Dec  5 21:59:51 1994  Doug Evans  <dje@canuck.cygnus.com>

        * Makefile.in (gencode): Allow build in different directory.

Wed Nov 30 17:47:13 1994  Jim Wilson  <wilson@chestnut.cygnus.com>

        * Makefile.in (gencode): Change $< to gencode.c for portability.

Wed Nov 23 21:31:55 1994  Steve Chamberlain  (sac@jonny.cygnus.com)

        * interp.c ([wr][bwl]at): New functions.
        (trap): Cope with both byte modes.

Thu Sep  8 17:35:07 1994  Steve Chamberlain  (sac@jonny.cygnus.com)

        * gencode.c (tab): Simulate T bit after a negc insn right.
        * interp.c (RSBAT): Sign extend the arg.
        (ACE_FAST): New macro.
        (sim_resume): Remove obsolete test of sim_timeout.
        
Fri Aug  5 14:12:31 1994  Steve Chamberlain  (sac@jonny.cygnus.com)

        * interp.c (IOMEM): New function, simulates very basic I/O area of
        the SH.
        (WBAT, RBAT) : Call I/O functions.
        * gencode.c (tab): Special case trapa #3.

Mon Jun 27 18:04:54 1994  Steve Chamberlain  (sac@cirdan.cygnus.com)

        * run.c (main): Specify the file type again.

Thu May 26 19:04:37 1994  Steve Chamberlain  (sac@thepub.cygnus.com)

        * interp.c (trap): Fix irix incompatibility.
        * run.c (main): open without specifying file type.

Wed May 18 14:18:53 1994  Doug Evans  (dje@canuck.cygnus.com)

        * interp.c (sim_*): Make result void where there isn't one.
        (sim_set_pc): Delete.
        (sim_info): Delete printf_fn arg, all callers changed.
        Call printf_filtered instead.
        (sim_close): New function.
        (sim_load): New function.
        (sim_create_inferior): Renamed from sim_set_args, all callers changed.
        * run.c: #include <varargs.h>, "remote-sim.h".
        (printf_filtered): New function.

Wed Apr 27 12:03:48 1994  Steve Chamberlain  (sac@cygnus.com)

        * gencode.c (table): Get direction of some opcodes right.
        (trapa, rte): Implement fully.
        * interp.c (trap): Make stat call more portable.

Fri Feb 11 21:59:38 1994  Steve Chamberlain  (sac@sphagnum.cygnus.com)

        * gencode.c (main, gendefines): New -d option prints table of defines.
        * interp.c (trap): Add a load of system calls. 
        (sim_memory_size): Now default to 8Mbyte.
        (PARANOID): Keep vector of registers with undefined contents.

Mon Nov 15 14:37:18 1993  Steve Chamberlain  (sac@jonny.cygnus.com)

        * gencode.c: mova uses aligned addresses
        * interp.c (trap): Return results in r0.

Tue Oct 26 10:38:55 1993  Doug Evans  (dje@canuck.cygnus.com)

        * Makefile.in (CSEARCH): Add -I$(srcdir)/../../gdb
        * interp.c: #include "remote-sim.h".
        (sim_resume): int result, new arg `siggnal'.
        (sim_write): Use SIM_ADDR for type of arg `addr'.
        (sim_read): Use SIM_ADDR for type of arg `addr'.
        Use unsigned char * for `buffer'.
        (sim_store_register): int result.
        (sim_fetch_register): Ditto.
        (sim_stop_reason): Renamed from sim_stop_signal.  New arg `reason'.
        (sim_set_pc): int result, use SIM_ADDR for type of arg `x'.
        (sim_info): int result, new args `verbose', `printf_fn'.
        (sim_kill): int result.
        (sim_open): int result, new arg `name'.
        * run.c: #include <stdio.h>
        (main): Update call to sim_info.

Sat Oct 23 15:09:29 1993  Doug Evans  (dje@canuck.cygnus.com)

        * interp.c (sim_stop_signal): Result is now enum sim_stop.

Fri Oct  8 10:47:09 1993  Steve Chamberlain  (sac@phydeaux.cygnus.com)

        * gencode.c (table): Becomes unsigned.
        * interp.c (trap): Get right breakpoint SIGnum. (sim_write,
        sim_read): Return number of bytes copied.  (sim_store_register):
        Value passed by reference. (sim_kill, sim_open, sim_set_args): New functions.

Tue Sep  7 16:24:13 1993  Stan Shebs  (shebs@rtl.cygnus.com)

        * interp.c (sim_info): Fix small typo in printf string.

Thu Aug  5 11:37:48 1993  Stan Shebs  (shebs@rtl.cygnus.com)

        * interp.c (sim_resume): Set memory after pointers inited.

Mon Aug  2 14:13:22 1993  Steve Chamberlain  (sac@phydeaux.cygnus.com)

        * interp.c (get_now): Use time system call.
        * Makefile.in: install correctly.

Tue Jul  6 10:30:46 1993  Steve Chamberlain  (sac@phydeaux.cygnus.com)

        * run.c (main), interp.c (sim_set_timeout): Remove timeout
        functionality.

Thu Jun 24 13:29:57 1993  david d `zoo' zuhn  (zoo at rtl.cygnus.com)

        * Makefile.in: don't run indent everytime; also add a space in the
        includes 

Thu Jun 17 18:30:42 1993  Steve Chamberlain  (sac@phydeaux.cygnus.com)

        * gencode.c: Fix some opcodes.
        * interp.c: Support for profiling and portability fixes.
        * run.c (main): Get profiling args.

Wed May  5 13:17:22 1993  Steve Chamberlain  (sac@cygnus.com)

        * gencode.c (tab): Lint for sgi compiler
        * interp.c: Lint for sgi compiler.

Mon May  3 15:25:33 1993  Steve Chamberlain  (sac@thepub.cygnus.com)

        * run.c (main): Support for resizing simulated RAM.     
        * Makefile.in: Support for broken makes.
        * interp.c, gencode.c: Lint.

Mon Apr 26 18:01:10 1993  Steve Chamberlain  (sac@thepub.cygnus.com)

        * created