2003-09-24 Dave Brolley <brolley@redhat.com>

[thirdparty/binutils-gdb.git] / sim / frv / ChangeLog

2003-09-24  Dave Brolley  <brolley@redhat.com>

        * profile.h (update_FR_ptime): New prototype.
        (update_FRdouble_ptime): Ditto.
        (update_SPR_ptime): Ditto.
        (increase_ACC_busy): Ditto.
        (enforce_full_acc_latency): Ditto.
        (post_wait_for_SPR): Ditto.
        * profile.c (update_FR_ptime): Moved here from profile-fr500.c.
        (update_FRdouble_ptime): Ditto.
        (update_SPR_ptime): New function.
        (increase_ACC_busy): Ditto.
        (enforce_full_acc_latency): Ditto.
        (vliw_wait_for_fdiv_resource): Correct resource name.
        (vliw_wait_for_fsqrt_resource): Ditto.
        (post_wait_for_SPR): New function.
        * profile-fr500.c (frvbf_model_fr500_u_commit): New function.
        (frvbf_model_fr500_u_gr2fr): Pass out_FRk as output register to
        adjust_float_register_busy.
        (frvbf_model_fr500_u_gr_load): Record latency of SPR registers.
        (frvbf_model_fr500_u_fr_load): Wait for and record latency of SPR
        registers.
        (frvbf_model_fr500_u_float_arith): Ditto.
        (frvbf_model_fr500_u_float_dual_arith): Ditto.
        (frvbf_model_fr500_u_float_div): Ditto.
        (frvbf_model_fr500_u_float_sqrt): Ditto.
        (frvbf_model_fr500_u_float_convert): Ditto.
        (update_FR_ptime): Moved to profile.c
        (update_FRdouble_ptime): Moved to profile.c
        * profile-fr400.c (update_FR_ptime): Removed. Identical to functions
        for other machines.
        (update_FRdouble_ptime): Ditto.
        * arch.h,cpu.h,sem.c,decode.[ch],model.c,sem.c: Regenerated.

2003-09-12  Dave Brolley  <brolley@redhat.com>

        * registers.c (frv_check_spr_read_access): Check for access to
        ACC4-ACC63 and ACCG4-ACCG63.
        * profile.h (frv-desc.h): #include it.
        (spr_busy): New member of FRV_PROFILE_STATE.
        (spr_latency): Ditto.
        (GNER_FOR_GR): New macro.
        (FNER_FOR_FR): New maccro.
        (update_SPR_latency): New function.
        (vliw_wait_for_SPR): New function.
        * profile.c (update_latencies): Update SPR latencies.
        (update_target_latencies): Ditto.
        (update_SPR_latency): New function.
        (vliw_wait_for_SPR): New function.
        * profile-fr500.c (frvbf_model_fr500_u_idiv): Record GNER latency.
        (frvbf_model_fr500_u_trap): Removed unused variable, ps.
        (frvbf_model_fr500_u_check): Ditto.
        (frvbf_model_fr500_u_clrgr): New unit modeller for fr500.
        (frvbf_model_fr500_u_clrfr): Ditto.
        (frvbf_model_fr500_u_spr2gr): Wait for SPR.
        (frvbf_model_fr500_u_gr2spr): Ditto.
        * frv-sim.h (H_SPR_ACC4): New macro.
        (H_SPR_ACCG4): New macro;
        (H_SPR_ACC0): Removed.
        (H_SPR_ACCG0): Removed.
        * arch.h,model.c,sem[ch],decode.[ch]: Regenerated.

2003-09-10  Dave Brolley  <brolley@redhat.com>

        * profile.c (slot_names): FM1 was listed twice. Changed first
        instance to FM0. Added IALL, FMALL and FMLOW.
        (print_parallel): Don't examine slots with no insns.

2003-09-09  Dave Brolley  <brolley@redhat.com>

        * frv.c (do_media_average): Select machine using a switch.

2003-09-08  Dave Brolley  <brolley@redhat.com>

        On behalf of Doug Evans <dje@sebabeach.org>
        * Makefile.in (stamp-arch,stamp-cpu): Pass archfile to cgen.
        Remove copying of .cpu file to cgen/cpu, no longer needed.

2003-09-03  Dave Brolley  <brolley@redhat.com>

        * cpu.h, model.c, sem.c, decode.h, decode.c: Regenerated.

2003-08-29  Dave Brolley  <brolley@redhat.com>

        * Makefile.in (stamp-arch): Copy frv.cpu from $(srcdir)../../cpu
        temporarily when regenerating files.
        (stamp-cpu): Ditto.

2003-08-20  Micheal Snyder  <msnyder@redhat.com>

        * All generated files: Regenerate.

2001-10-11  Dave Brolley  <brolley@redhat.com>

        * cpu.h,decode.c,decode.h,sem.c: Regenerate.

2001-10-09  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_rett): Halt if PSR.S and PSR.ET are both set or both
        not set.
        * reset.c (frv_hardware_reset): Invalidate both caches.
        * registers.c: Update init, reset and read-only masks for all registers
        on all machines.
        * profile.h (cur_gr_complex): New field of FRV_PROFILE_STATE
        (prev_gr_complex): New field of FRV_PROFILE_STATE
        (set_use_is_gr_complex): New function.
        (set_use_not_gr_complex): New function.
        (use_is_gr_complex): New function.
        (decrease_GR_busy): New function.
        * profile.c (reset_gr_flags): New function.
        (reset_cc_flags): New function.
        (set_use_is_gr_complex): New function.
        (set_use_not_gr_complex): New function.
        (use_is_gr_complex): New function.
        (update_latencies): Reset gr and cc flags when latency reaches 0.
        (decrease_GR_busy): New function.
        * profile-fr400.h (fr500_reset_acc_flags): Removed.
        (fr500_reset_cc_flags): New function.
        * profile-fr500.c (frvbf_model_fr400_u_*): Reflect latencies from fr500
        LSI version 1.41.
        * profile-fr400.h (fr400_reset_gr_flags): New function.
        (fr400_reset_fr_flags): New function.
        (fr400_reset_acc_flags): New function.
        * profile-fr400.c (set_use_not_media_p4): New function.
        (set_use_not_media_p6): New function.
        (set_acc_use_not_media_p2): New function.
        (set_acc_use_not_media_p4): New function.
        (fr400_reset_gr_flags): New function.
        (fr400_reset_fr_flags): New function.
        (fr400_reset_acc_flags): New function.
        (frvbf_model_fr400_u_*): Reflect latencies from fr400 LSI version 1.1.
        (frvbf_model_fr400_u_media_hilo): New function.
        * pipeline.c (frv_vliw_setup_insn): Don't clear MSR0.MTT.
        * memory.c (fr400_check_data_read_address): Check address range only
        for double word loads. Don't check alignment here.
        (fr400_check_readwrite_address): New function.
        (fr500_check_readwrite_address): New function.
        (check_readwrite_address): New function.
        (fr500_check_insn_read_address): Correct address ranges.
        (frvbf_read_mem_*): Check address range here.
        (frv_address_forbidden): Removed.
        (fr400_check_write_address): New function.
        (check_write_address): New function.
        (frvbf_write_mem_*): Don't check address range here.
        (frvbf_mem_set_*): Check address range here.
        * interrupts.c (frv_queue_data_access_error_interrupt): Now takes an
        address as second argument.
        (frv_queue_data_access_exception_interrupt): New function.
        (frv_queue_illegal_instruction_interrupt): Generate fp_exception for
        media insns on fr400.
        (frv_queue_non_implemented_instruction_interrupt): Generate mp_exception
        for media insns on fr400.
        (frv_detect_insn_access_interrupts): Don't check for illegal addresses
        of insns here.  Check for MTRAP insn if PSR.EM is not set.
        (frv_set_mp_exception_registers): Only set MSR0.MTT if it is not already
        set.
        (set_exception_status_registers): Do not always set EPCR. Set EAR for
        data_acess_error only if not fr400.
        * frv.c (do_media_average): New function.
        (frvbf_media_average): New function.
        (frvbf_insn_cache_invalidate): Check for illegal invocation.
        (frvbf_data_cache_invalidate): Ditto.
        (frvbf_data_cache_flush): Ditto.
        * frv-sim.h (GET_FSR_QNE): New macro.
        (frv_msr_mtt): Remove MTT_SEQUENCE_ERROR.
        (GET_MSR_SRDAV): New macro.
        (GET_MSR_RDAV): New macro.
        (GET_MSR_RD): New macro.
        (frv_queue_data_access_error_interrupt): Now takes an address as second
        argument.
        (frv_address_forbidden): Removed.
        * cache.c (non_cache_access): Correct address ranges. Now takes cache
        as first argument.
        * arch.h,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

2001-08-20  Dave Brolley  <brolley@redhat.com>

        * sim-main.h (_sim_cpu): New field 'elf_flags'.
        * sim-if.c (sim_open): Extract the elf_flags from the input file and
        save them with each cpu.
        * mloop.in (main loop): Pass elf flags to frv_vliw_reset.  Set
        last_insn_p before executing the insn.
        * cache.c (frv_cache_invalidate): Flush scache if this is the cpu's
        insn cache.
        (frv_cache_invalidate_all): Ditto.

2001-08-20  Richard Sandiford  <rsandifo@redhat.com>

        * traps.c (syscall_read_mem): Flush the data cache before reading.
        (syscall_write_mem): Flush the data cache before writing.
        Invalidate both caches.

2001-07-05  Ben Elliston  <bje@redhat.com>

        * Makefile.in (stamp-arch): Use $(CGEN_CPU_DIR).
        (stamp-cpu): Likewise.

2001-05-23  Dave Brolley  <brolley@redhat.com>

        * profile-fr400.c (acc_use_is_media_p2): New function.
        (frvbf_model_fr400_u_media_2): Account for latency of output
        accumulators.
        (frvbf_model_fr400_u_media_2_quad): Ditto.
        (frvbf_model_fr400_u_media_2_acc): New function.
        (frvbf_model_fr400_u_media_2_acc_dual): New function.
        (frvbf_model_fr400_u_media_2_add_sub): New function.
        (frvbf_model_fr400_u_media_2_add_sub_dual): New function.
        (frvbf_model_fr400_u_media_3_dual): New function.
        (frvbf_model_fr400_u_media_4_acc_dual): New function.
        * arch.h,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

2001-05-15  Dave Brolley  <brolley@redhat.com>

        * registers.c (fr400_spr): Enable write access to HSR0.CBM.
        * profile.h (FRV_PROFILE_STATE): New field 'all_cache_entries'.
        * profile.c (CACHE_QUEUE_ELEMENT): New 'all' field.
        (request_cache_flush): Save 'all' argument.
        (request_cache_invalidate): Save all_cache_entries from profile state
        to 'all' field of the request.
        (submit_cache_request): Pass the 'all' field of the request to
        frv_cache_request_invalidate.
        * frv.c (frv_insn_cache_invalidate): Add new 'all' parameter. Perform
        operation even if HSR0.ICE is not set.
        (frv_data_cache_invalidate): Add new 'all' parameter. Perform
        operation even if HSR0.DCE is not set.
        (frv_data_cache_flush): Ditto.
        * frv-sim.h (frv_insn_cache_invalidate): Add new 'all' parameter.
        (frv_data_cache_invalidate): Add new 'all' parameter.
        (frv_data_cache_flush): Add new 'all' parameter.
        * cache.h (FRV_CACHE_INVALIDATE_REQUEST): Add new 'all' field.
        (frv_cache_request_invalidate): Add new 'all' parameter.
        * cache.c (frv_cache_request_invalidate): Add new 'all' parameter. Save
        its value in the invalidate request.
        (address_interference): Accept the value '-1' for the address argument
        to mean 'any address'.
        (handle_req_invalidate): Handle request to invalidate all cache lines.
        * cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

2001-05-14  Dave Brolley  <brolley@redhat.com>

        * profile.h (past_first_p): New field of profiling state.
        (branch_penalty): Ditto.
        (branch_hint): Ditto.
        (update_branch_penalty): New function.
        * profile.c (frvbf_model_insn_after): Reset past_first_p and
        branch_address fields of the profiling state.
        (frvbf_model_branch): New function.
        (update_branch_penalty): New function.
        * profile-fr500.c (frvbf_model_fr500_u_branch): Remove ICCi_3 and
        FCCi_3 inputs.
        (frvbf_model_fr500_u_trap): New function.
        (frvbf_model_fr500_u_check): New function.
        (frvbf_model_fr500_u_media_dual_htob): post-processing latency is 3
        cycles.
        * profile-fr400.c (frvbf_model_fr400_u_branch): Set branch penalties
        as documented in the fr400 LSI. Remove ICCi_3 and FCCi_3 inputs.
        (frvbf_model_fr400_u_media_dual_expand): Check resource usage as
        documented in teh fr400 LSI.
        (frvbf_model_fr400_u_media_dual_htob): Ditto.
        (frvbf_model_fr400_u_media_dual_unpack): Removed.
        (frvbf_model_fr500_u_trap): New function.
        (frvbf_model_fr500_u_check): New function.
        * mloop.in (simulate_dual_insn_prefetch): New function.
        (@cpu@_simulate_insn_prefetch): Call simulate_dual_insn_prefetch with
        arguments for each machine type.
        * arch.h,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

2001-05-09  Dave Brolley  <brolley@redhat.com>

        * Makefile.in (profile.o): Add profile-fr400.h as a dependency.
        (profile-fr400.o): New target.
        * profile.c: New file.
        * profile.h: New file.
        * profile-fr400.c: New file.
        * profile-fr400.h: New file.
        * profile-fr500.c: New file.
        * profile-fr500.h: New file.
        * arch.h,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

2001-05-02  Dave Brolley  <brolley@redhat.com>

        * sim-main.h (profile.h): #include it.
        (CPU_PROFILE_STATE): New macro.
        (profile_state): New frv specific cpu field.
        * reset.c (frv_initialize): insn_fetch_address and branch_address now
        part of global profiling state.
        * Makefile.in (SIM_OBJS): Add profile.o and profile-fr500.o.
        (SIM_EXTRA_DEPS): Add profile.h.
        (registers.o): Correct name of source file.
        (profile.o): New target.
        (profile-fr500.o): New target.
        * frv-sim.h: Move profile related data structures to profile.h.
        * frv.c: Move fr500 specific functions to profile-fr500.c.
        * cpu.h: Regenerated.

2001-04-27  Dave Brolley  <brolley@redhat.com>

        * sim-main.h (CPU_PIPELINE): Renamed to CPU_VLIW.
        * interrupts.c: Rename FRV_PIPELINE to FRV_VLIW.
        Rename pipeline to vliw. Rename CPU_PIPELINE to CPU_VLIW.
        Rename PIPE_* to UNIT_*.
        (frv_queue_illegal_instruction_interrupt): Use
        frv_is_float_insn and frv_is_media_insn.
        (frv_queue_non_implemented_instruction_interrupt): Ditto.
        (frv_detect_insn_access_interrupts): Ditto.
        * frv.c: Rename FRV_PIPELINE to FRV_VLIW. Rename pipeline to vliw.
        Rename CPU_PIPELINE to CPU_VLIW. Rename PIPE_* to UNIT_*.
        * memory.c: Ditto.
        * pipeline.c: Ditto.
        * mloop.in: Ditto.
        * frv-sim.h (frv_pipeline_setup_insn): Renamed to frv_vliw_setup_insn.
        * cache.c: Rename PIPE_* to UNIT_*.

2001-04-24  Dave Brolley  <brolley@redhat.com>

        * frv.c (frvbf_load_quad_GR): Delete have_data and hsr0.
        (frvbf_load_quad_FRint): Ditto.
        (frvbf_load_quad_CPR): Ditto.
        * cache.c (frv_cache_init): Initialize cache for fr400 vs other
        machines.
        (bfd.h): #include it.
        (non_cache_access): Update for revised fr500 and for fr400.
        * registers.c (frv_spr): Don't reset PSR.PS.
        (fr500_spr): Ditto.
        (frv_reset_spr): Set PSR.PS to the former value of PSR.S.

2001-04-23  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_core_signal): On fr400, generate data_access_error.
        (frvbf_media_cr_not_aligned): On fr400, generate illegal_instruction.
        (frvbf_media_acc_not_aligned): Ditto.
        (frvbf_media_register_not_aligned): Ditto.
        (frvbf_division_exception): Use GET_ISR_EDE.
        * registers.c (frv_check_spr_read_access): New function.
        (frv_check_spr_write_access): New function.
        (frv_check_spr_access): Deleted.
        (frv_check_register_access): On fr400, generate illegal_instruction.
        * memory.c (fr400_check_data_read_address): New function.
        (fr500_check_data_read_address): Ditto.
        (check_data_read_address): Ditto.
        (fr400_check_insn_read_address): Ditto.
        (fr500_check_insn_read_address): Ditto.
        (check_insn_read_address): Ditto.
        (frvbf_read_mem_QI): Call check_data_read_access.
        (frvbf_read_mem_UQI): Ditto.
        (frvbf_read_mem_HI): Ditto.
        (frvbf_read_mem_UHI): Ditto.
        (frvbf_read_mem_SI): Ditto.
        (frvbf_read_mem_DI): Ditto.
        (frvbf_read_mem_DF): Ditto.
        (frvbf_read_imem_USI): Call check_insn_read_access.
        (frv_address_forbidden): Now takes cpu as first argument. Check based
        on machine type.
        (fr400_mem_address_unaligned): New function.
        (fr500_mem_address_unaligned): Ditto.
        (check_write_address): Ditto.
        (frvbf_mem_set_QI): Call check_write_address.
        (frvbf_mem_set_HI): Ditto.
        (frvbf_mem_set_SI): Ditto.
        (frvbf_mem_set_DI): Ditto.
        (frvbf_mem_set_DF): Ditto.
        (frvbf_mem_set_XI): Ditto.
        * interrupts.c (bfd.h): #include it.
        (frv_queue_data_access_error_interrupt): New function.
        (frv_queue_instruction_access_error_interrupt): New function.
        (frv_queue_instruction_access_exception_interrupt): New function.
        (frv_queue_illegal_instruction_interrupt): No fp_exception on fr400.
        (frv_queue_non_implemented_instruction_interrupt): Ditto.
        (frv_detect_insn_access_interrupts): Reorder tests to match priority
        from the LSI manual.
        (set_isr_exception_fields): Accumulate dtt bits.
        * frv.c (check_register_alignment): New function.
        (check_fr_register_alignment): New function.
        (check_memory_alignment): New function.
        (frvbf_h_gr_double_get_handler): Call check_register_alignment.
        (frvbf_h_gr_double_set_handler): Ditto.
        (frvbf_h_cpr_double_get_handler): Ditto.
        (frvbf_h_cpr_double_set_handler): Ditto.
        (frvbf_h_gr_quad_set_handler): Ditto.
        (frvbf_h_cpr_quad_set_handler): Ditto.
        (frvbf_h_fr_double_get_handler): Call check_fr_register_alignment.
        (frvbf_h_fr_double_set_handler): Ditto.
        (frvbf_h_fr_quad_set_handler): Ditto.
        (frvbf_h_spr_get_handler): Call frv_check_spr_read_access.
        (frvbf_h_spr_set_handler): Call frv_check_spr_write_access.
        (frvbf_load_quad_GR): Call check_memory_aligment.
        (frvbf_load_quad_FRint): Ditto.
        (frvbf_load_quad_CPR): Ditto.
        (frvbf_store_quad_GR): Call check_memory_aligment and
        check_register_alignment.
        (frvbf_store_quad_FRint): Ditto.
        (frvbf_store_quad_CPR): Ditto.
        (frvbf_signed_integer_divide: Use GET_ISR_EDEM.
        * frv-sim.h (H_SPR_ACC0): New macro.
        (H_SPR_ACC63): New macro.
        (H_SPR_ACCG0): New macro.
        (H_SPR_ACCG63): New macro.
        (frv_dtt): New enumerator.
        (GET_ISR_EDE): Renamed from GET_ISR_EDEM.
        (GET_ISR_DTT): New macro.
        (frv_queue_data_access_error_interrupt): New function.
        (frv_queue_instruction_access_error_interrupt): New function.
        (frv_queue_instruction_access_exception_interrupt): New function.
        (frv_address_forbidden): Now takes cpu as first argument.
        * cpu.h: Regenerate.

2001-04-10  Dave Brolley  <brolley@redhat.com>

        * registers.c (fr500_spr): Add new fields to fr500 PSR register.
        (fr500_spr): Add STBAR and MMCR unimplemented registers for fr500.
        (fr400_spr): Implement SPR registers for fr400.
        (frv_register_control_init): Handle bfd_mach_fr400 properly.
        * frv.c (spr_bpsr_get_handler): Mask field before shifting.
        (spr_psr_get_handler): Ditto.
        (spr_ccr_get_handler): Ditto.
        (spr_cccr_get_handler): Ditto.
        (frvbf_clear_accumulators): Only 4 accumulators on fr400.
        * frv-sim.h: Update comment about MCCR_* macros.
        * cpu.c,cpu.h: Regenerate.

2001-04-05  Dave Brolley  <brolley@redhat.com>

        * cpu.h,decode.c,model.c,sem.c: Regenerate.

2001-04-05  Dave Brolley  <brolley@redhat.com>

        * reset.c: Update copyright.
        * registers.c (frv_register_control_init): Handle bfd_mach_fr400.
        * frv.c (frvbf_model_fr400_u_exec): New function.
        * Makefile.in (stamp-cpu): Add fr400 to list of machines.
        * arch.c,arch.h,cpu.c,cpu.h,cpuall.h,model.h,decode.c,decode.h,sem.c:
        Regenerate.

2000-11-22  Dave Brolley  <brolley@redhat.com>

        * arch.c,arch.h,cpu.c,cpu.h,cpuall.h,model.h,decode.c,decode.h,sem.c:
        Regenerate.

2000-11-10  Dave Brolley  <brolley@redhat.com>

        * decode.c: Regenerate.

2000-09-12  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_sim_engine_halt_hook): New function.
        (frv_itrap): Caches now invalidated in sim_engine_halt via
        SIM_ENGINE_HALT_HOOK.
        (frv_break): Ditto.
        * sim-main.h (frv_sim_engine_halt_hook): New function.
        (SIM_ENGINE_HALT_HOOK): New macro.
        (SIM_ENGINE_RESTART_HOOK): New macro.
        * interrupts.c: Call to frv_term now done within sim_engine_halt via
        SIM_ENGINE_HALT_HOOK.

2000-09-08  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_itrap): Invalidate and flush the data and insn caches
        respectively when stopping for a breakpoint.
        (frv_break): Ditto.
        * cache.h (frv_cache_invalidate_all): New function.
        * cache.c (frv_cache_invalidate_all): New function.

2000-09-05  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_break): If SIM_HAVE_BREAKPOINTS, call
        sim_handle_breakpoint. Otherwise if environment != operating call
        sim_engine_halt. Otherwise handle normally.
        * interrupts.c (frv_queue_break_interrupt): Don't handle debugger
        breakpoints here. Moved to frv_break in traps.c.

        * sem.c: Regenerate.

2000-09-01  Dave Brolley  <brolley@redhat.com>

        * interrupts.c (frv_queue_break_interrupt): Call sim_handle_breakpoint
        before queuing an interrupt in order to allow 'break' to be used as
        the breakpoint insn.

2000-08-29  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_itrap): Invalidate the insn cache at a breakpoint.

2000-07-27  Dave Brolley  <brolley@redhat.com>

        * cpu.h,decode.c: Rebuild.

2000-07-26  Dave Brolley  <brolley@redhat.com>

        * frv.c (spr_cccr_get_handler): Change CRx to CCx.
        (spr_cccr_set_handler): Change CRx to CCx.
        * cpu.h,decode.c,decode.h,model.c,sem.c: Rebuild.

2000-07-24  Dave Brolley  <brolley@redhat.com>

        * sem.c: Regenerate.
        * frv.c (frvbf_unsigned_integer_divide): Queue a write for the result.
        Don't write it directly.

Thu Jul  6 13:51:12 2000  Dave Brolley  <brolley@topaz>

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

2000-07-05  Ben Elliston  <bje@redhat.com>

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

2000-06-28  Dave Brolley  <brolley@redhat.com>

        * cpu.h,decode.c,decode.h,model.c,sem.c: Rebuild.

2000-06-21  Dave Brolley  <brolley@redhat.com>

        * pipeline.c: All code except frv_pipeline_setup_insn moved to
        frv.opc.
        * mloop.in (main loop): frv_pipeline_add_insn broken up into
        frv_pipeline_add_insn and frv_pipeline_setup_insn.
        * frv-sim.h: Move pipeline status code to frv.opc.
        * model.c: Regenerate.

2000-06-12  Dave Brolley  <brolley@redhat.com>

        * options.c (frv_option_handler): --profile-parallel implies
        --profile-model.
        * mloop.in (fetch_buffer): Removed.
        (@cpu@_simulate_insn_prefetch): Monitoring of fetch buffer moved to
        run_caches.  Use cache directly if not counting cycles.  Don't use
        cache at all if not counting cycles and cache not enabled.
        * frv.c (frv_insn_fetch_buffer): New global variable. 
        (run_caches): Monitor the status of insn prefetch requests.
        * frv-sim.h (FRV_INSN_FETCH_BUFFER): New struct type.
        (frv_insn_fetch_buffer): New global variable.

2000-06-12  Dave Brolley  <brolley@redhat.com>

        * mloop.in (fetch_buffer): New static struct.
        (@cpu@_simulate_insn_prefetch): Rewritten.
        * cache.c (frv_cache_request_invalidate): Don't invalidate return
        buffer.
        (address_interference): Defer to any WAR request in either pipeline.

2000-06-09  Dave Brolley  <brolley@redhat.com>

        * pipeline.c (insns_in_slot): New Array.
        (frv_pipeline_add_insn): Call COUNT_INSNS_IN_SLOT.
        * options.c (frv_options): Remove 'NONBLOCK' argument from data-cache
        option.
        (parse_cache_option): New function.
        (frv_option_handler): Call parse_cache_option.
        * frv.c (vliw_branch_taken): New variable.
        (vliw_load_stall): New variable.
        (handle_resource_wait): Update vliw_load_stall.
        (frvbf_model_insn_before): Initialize vliw_branch_taken and
        vliw_load_stall.
        (frvbf_model_insn_after): Increment PROFILE_MODEL_LOAD_STALL_CYCLES.
        (load_wait_for_FR): Update vliw_load_stall.
        (load_wait_for_GR): Update vliw_load_stall.
        (load_wait_for_FRdouble): Update vliw_load_stall.
        (load_wait_for_GRdouble): Update vliw_load_stall.
        (frvbf_model_fr500_u_branch): Count branches taken and not taken.
        (slot_names): New static array.
        (print_parallel): Now takes second argument 'verbose'. Print cycles per
        VLIW insn and instructions per cycle. Also tabulate the number of insns
        in each type of VLIW slot.
        (frv_profile_info): Call print_parallel with new second argument.
        * frv-sim.h (insn_in_slot): New array.
        (COUNT_INSNS_IN_SLOT): New macro.
        (INSNS_IN_SLOT): New macro.
        * cache.c: Remove references to non_blocking_count. Remove references to
        last_was_hit. Remove references to req_none.
        (handle_req_store): Adjust statistics before requeuing the store
        request.
        (handle_req_WAR): Don't let the WAR request affect the cache statistics.
        * cache.h: Remove references to non_blocking_count. Remove references to
        last_was_hit. Remove references to req_none.
        * model.c: Regenerate.

2000-06-08  Dave Brolley  <brolley@redhat.com>

        * frv.c (request_complete): Copy load data from the correct return
        buffer.

2000-06-07  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_core_signal): Call frv_term before exiting.
        (frv_itrap): Call frv_term before exiting.
        (next_available_nesr): Make sure NECR is implemented before reading it.
        (next_valid_nesr): Ditto.
        (frvbf_check_non_excepting_load): Ditto.
        (frvbf_clear_ne_flags): Ditto.
        (frvbf_commit): Ditto.
        (frvbf_check_recovering_store): Delay cache operation if 'model_insn'.
        * sim-main.h (_sim_cpu): Add load_address, load_length, load_flag and
        store_flag members.
        (CPU_LOAD_ADDRESS): New macro.
        (CPU_LOAD_LENGTH): New macro.
        (CPU_LOAD_SIGNED): New macro.
        (CPU_LOAD_LOCK): New macro.
        * reset.c (frv_term): New function.
        (frv_power_on_reset): Use SETMEMSI if the cache is not enabled.
        (frv_hardware_reset): Use SETMEMSI if the cache is not enabled.
        (frv_software_reset): Use SETMEMSI if the cache is not enabled.
        * mloop.in (execute): Call FRV_COUNT_CYCLES to decide whether to model
        the insn. Model the insn in two passes. One before and one after
        execution.
        (cache_reqno): new static variable.
        (@cpu@_simulate_insn_prefetch): Model fetch latency by waiting for the
        cache rather than assuming a fixed latency.
        (xinit): Turn on PROFILE_MODEL_P before each vliw insn if the timer is
        enabled so that modeling data is collected by cgen during execution.
        (full-exec): Restore PROFILE_MODEL_P after each vliw insn.
        * memory.c (data_non_cache_access): Removed.
        (insn_non_cache_access): Removed.
        (frvbf_read_mem_QI): Delay read operation if 'model_insn'.
        (frvbf_read_mem_UQI): Delay read operation if 'model_insn'.
        (frvbf_read_mem_HI): Delay read operation if 'model_insn'.
        (frvbf_read_mem_UHI): Delay read operation if 'model_insn'.
        (frvbf_read_mem_SI): Delay read operation if 'model_insn'.
        (frvbf_read_mem_DI): Delay read operation if 'model_insn'.
        (frvbf_read_mem_DF): Delay read operation if 'model_insn'.
        (frvbf_read_imem_USI): Read the cache or ememory passively.
        (frvbf_write_mem_QI): Don't check for non-cache access here.
        (frvbf_write_mem_UQI): Call frvbf_write_mem_QI.
        (frvbf_write_mem_HI): Don't check for non-cache access here.
        (frvbf_write_mem_UHI): Call frvbf_write_mem_QI.
        (frvbf_write_mem_SI): Don't check for non-cache access here.
        (frvbf_write_mem_DI): Don't check for non-cache access here.
        (frvbf_write_mem_DF): Don't check for non-cache access here.
        (frvbf_mem_set_QI): Use cycle-accurate cache write if 'model_insn'.
        (frvbf_mem_set_HI): Use cycle-accurate cache write if 'model_insn'.
        (frvbf_mem_set_SI): Use cycle-accurate cache write if 'model_insn'.
        (frvbf_mem_set_DI): Use cycle-accurate cache write if 'model_insn'.
        (frvbf_mem_set_DF): Use cycle-accurate cache write if 'model_insn'.
        (frvbf_mem_set_XI): Use cycle-accurate cache write if 'model_insn'.
        * interrupts.c (check_reset): Read the cache and memory passively.
        (frv_program_or_software_interrupt): Call frv_term before calling
        sim_engine_halt.
        * frv.c (all modeling functions): Break into two passes. One before
        execuetion and one after. call load_wait_for_* for all GR and FR
        registers.
        (frvbf_load_quad_GR): Delay performing the load if 'model_insn'.
        (frvbf_load_quad_FRint): Delay performing the load if 'model_insn'.
        (frvbf_load_quad_CPR): Delay performing the load if 'model_insn'.
        (frvbf_insn_cache_preload): Delay cache operation if 'model_insn'.
        (frvbf_data_cache_preload): Delay cache operation if 'model_insn'.
        (frvbf_insn_cache_unlock): Delay cache operation if 'model_insn'.
        (frvbf_data_cache_unlock): Delay cache operation if 'model_insn'.
        (frvbf_insn_cache_invalidate): Delay cache operation if 'model_insn'.
        (frvbf_data_cache_invalidate): Delay cache operation if 'model_insn'.
        (frvbf_data_cache_flush): Delay cache operation if 'model_insn'.
        (model_insn): New global variable.
        (fr_ptime): New array.
        (cache_request): New enumeration.
        (CACHE_QUEUE_ELEMENT): New struct type.
        (CACHE_QUEUE_SIZE): New macro.
        (cache_queue): New static struct.
        (request_cache_load): New function.
        (request_cache_flush): New function.
        (request_cache_invalidate): New function.
        (request_cache_preload): New function.
        (request_cache_unlock): New function.
        (submit_cache_request): New function.
        (activate_cache_requests): New function.
        (load_pending_for_register): New function.
        (flush_pending_for_address): New function.
        (remove_cache_queue_element): New function.
        (copy_load_data): New function.
        (request_complete): New function.
        (run_caches): New function.
        (frv_model_trace_wait_cycles): New function.
        (wait_for_flush): New function.
        (frvbf_model_insn_before): Insn prefect wait now modeled in
        frvbf_simulate_insn_prefetch. Incremement vliw_insns here. Call
        wait_for_flush.
        (frvbf_model_insn_after): Call activate_cache_requests. Don't increment
        vliw_insns here anymore.
        (update_FR_latency_for_load): New function.
        (update_FRdouble_latency_for_load): New function.
        (update_FR_ptime): New function.
        (update_FRdouble_ptime): New function.
        (update_GR_latency_for_swap): New function.
        (load_wait_for_GR): New function.
        (load_wait_for_FR): New function.
        (load_wait_for_GRdouble): New function.
        (load_wait_for_FRdouble): New function.
        (frvbf_model_fr500_u_ici): New function.
        (frvbf_model_fr500_u_dci): New function.
        (frvbf_model_fr500_u_dcf): New function.
        (frvbf_model_fr500_u_icpl): New function.
        (frvbf_model_fr500_u_dcpl): New function.
        (frvbf_model_fr500_u_icul): New function.
        (frvbf_model_fr500_u_dcul): New function.
        * frv-sim.h (frv_term): New function.
        (insn_non_cache_access): Removed.
        (FRV_COUNT_CYCLES): New macro.
        (frv_save_peofile_model_p): New global variable.
        (model_insn): New enumerated global variable.
        (frv_model_advance_cycles): New function.
        (frv_model_trace_wait_cycles): New function.
        * cache.h (FRV_CACHE_REQUEST_KIND): New enumeration.
        (FRV_CACHE_WAR_REQUEST): New struct type.
        (FRV_CACHE_STORE_REQUEST): New struct type.
        (FRV_CACHE_INVALIDATE_REQUEST): New struct type.
        (FRV_CACHE_PRELOAD_REQUEST): New struct type.
        (FRV_CACHE_REQUEST): New struct type.
        (FRV_CACHE_RETURN_BUFFER): New struct type.
        (FRV_CACHE_FLUSH_STATUS): New struct type.
        (FRV_CACHE_STATUS): New struct type.
        (FRV_CACHE_STAGE): New struct type.
        (FRV_CACHE_STAGES): New enumeration.
        (FRV_CACHE_WAR): New struct type.
        (FRV_CACHE_PIPELINE): New struct type.
        (FRV_CACHE_ARS): New struct type.
        (FRV_CACHE_STATISTICS): New struct type.
        (FRV_CACHE): Add pipeline, statistics, BARS and NARS.
        (CACHE_RETURN_DATA): 'return_buffer' is now within 'status'.
        (CACHE_RETURN_DATA_ADDRESS): New macro.
        (frv_cache_read): Now takes pipe index as second argument.
        (frv_cache_enabled): New function.
        (frv_cache_request_load): New function.
        (frv_cache_request_store): New function.
        (frv_cache_request_invalidate): New function.
        (frv_cache_request_preload): New function.
        (frv_cache_request_unlock): New function.
        (frv_cache_run): New function.
        (frv_cache_read_passive_SI): New function.
        (frv_cache_data_in_buffer): New function.
        (frv_cache_data_flushed): New function.
        * cache.c (frv_cache_init): Initialize pipelines and xARS registers.
        (frv_cache_enabled): New function.
        (non_cache_access): New function.
        (write_data_to_memory): Count write accesses for each mode. Write to
        memory using sim_core_write_unaligned_1;
        (read_data_from_memory): New function.
        (fill_line_from_memory): Use read_data_from_memory.
        (copy_line_to_return_buffer): New function.
        (copy_memory_to_return_buffer): New function.
        (set_return_buffer_reqno): New function.
        (frv_cache_read): Now takes pipe index as second argument. Check for
        non-cache access.
        (frv_cache_preload): Check for non-cache access.
        (frv_cache_unlock): Check for non-cache access.
        (invalidate_return_buffer): New function.
        (frv_cache_invalidate): Check for non-cache access.
        (convert_slot_to_index): New function.
        (FREE_CHAIN_SIZE): New macro.
        (frv_cache_request_free_chain): New static variable.
        (frv_store_request_free_chain): New static variable.
        (allocate_new_cache_requests): New function.
        (new_cache_request): New function.
        (free_cache_request): New function.
        (new_store_request): New function.
        (pipeline_remove_request): New function.
        (pipeline_add_request): New function.
        (pipeline_requeue_request): New function.
        (next_priority): New function.
        (add_WAR_request): New function.
        (pipeline_next_request): New function.
        (pipeline_stage_request): New function.
        (advance_pipelines): New function.
        (frv_cache_request_load): New function.
        (frv_cache_request_store): New function.
        (frv_cache_request_invalidate): New function.
        (frv_cache_request_preload): New function.
        (frv_cache_request_unlock): New function.
        (address_interference): New function.
        (wait_for_WAR): New function.
        (wait_in_WAR): New function.
        (handle_req_load): New function.
        (handle_req_preload): New function.
        (handle_req_store): New function.
        (handle_req_invalidate): New function.
        (handle_req_unlock): New function.
        (handle_req_WAR): New function.
        (arbitrate_requests): New function.
        (move_ARS_to_WAR): New function.
        (decrease_latencies): New function.
        (frv_cache_run): New function.
        (frv_cache_read_passive_SI): New function.
        (frv_cache_data_in_buffer): New function.
        (frv_cache_data_flushed): New function.
        * arch.h,decode.c,decode.h,model.c,sem.c: Rebuild.

Wed May 24 14:40:34 2000  Andrew Cagney  <cagney@b1.cygnus.com>

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

2000-05-19  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_rett): Check for exceptions in the order specified in the
        architecture spec. Allow privileged_instruction interrrupt to be handled
        normally.
        * registers.c (frv_register_control_init): Handle bfd_mach_frvtomcat.
        * frv.c (frvbf_signed_integer_divide): Use updated dtt to decide whether
        to clear the NE flag.
        (frvbf_model_tomcat_u_exec): New function.
        * frv-sim.h (frvbf_division_exception): Now returns updated dtt.
        * Makefile.in (stamp-cpu): Add 'tomcat' to 'mach' value.
        * arch.c,arch.h,cpu.h,cpuall.h,model.h,decode.c,sem.c: Regenerate.

2000-05-18  Dave Brolley  <brolley@redhat.com>

        * sim-if.c (elf-bfd.h): #include it.
        (sim_open): Set machine amd architecture based on elf flags.

2000-04-04  Dave Brolley  <brolley@redhat.com>

        * frv-sim.h (frv_h_psr_esr_set_handler): Removed.
        Delete '#if 0' blocks.
        * frv.c: Delete '#if 0' blocks.
        (spr_psr_set_handler): Remove special handling for circular referencing of handlers for
        PSR.S and PSR.ESR.
        (frv_h_psr_esr_set_handler): Removed.
        * interrupts.c: Delete '#if 0' blocks.
        * memory.c: Delete '#if 0' blocks.
        * cpu.c,cpu.h: Regenerate.

2000-04-03  Dave Brolley  <brolley@redhat.com>

        * traps.c (frvbf_check_recovering_store): Invalidate data cache line
        containing the target address.
        (clear_nesr_neear): No longer takes hi_available and lo_available.
        Remove bogus check for available GR registers.
        (frvbf_clear_ne_flags): Update call to clear_nesr_neear.
        (frvbf_commit): Update call to clear_nesr_neear.
        * interrupts.c (next_available_esr): Removed.
        (next_available_edr): Removed.
        (next_available_fq): Removed.
        * frv.c (frvbf_fetch_register): Remove "FIXME" comment.
        (frvbf_store_register): Remove "FIXME" comment.
        * frv-sim.h (UART_INCHAR_ADDR): Removed.
        (UART_OUTCHAR_ADDR):  Removed.
        (UART_STATUS_ADDR):  Removed.
        (UART_INPUT_READY):  Removed.
        (UART_OUTPUT_READY):  Removed.
        (FRV_DEVICE_ADDR):  Removed.
        (FRV_DEVICE_LEN):  Removed.
        (SET_NESR): Call frvbf_force_update.
        (SET_NEEAR): Call frvbf_force_update.
        (SET_NE_FLAGS): Call frvbf_force_update.

2000-03-30  Dave Brolley  <brolley@redhat.com>

        * configure: Regenerated.

2000-03-30  Dave Brolley  <brolley@redhat.com>

        * registers.c (fr500_spr): Define ESR14-15 and EPCSR14-15 for fr500.
        * memory.c (frvbf_write_mem_*): Save slot containing the insn
        performing the write.
        (frvbf_mem_set_*): Overwrite the slot information of the interrupt
        queue element with the information in the interrupt state.
        * interrupts.c (frv_queue_interrupt): Call frv_set_interrupt_queue_slot.
        (frv_queue_fp_exception_interrupt): Initialize 'new_element'.
        (frv_set_interrupt_queue_slot): New function.
        (esr_for_data_access_exception): New function.
        (set_edr_register): edr_index is now passed in.
        (fq_for_exception): New function.
        (set_fp_exception_registers): Call fq_for_exception. Interrupt queue
        element now passed in.
        (set_exception_status_registers): Obtain slot from interrupt queue
        element. Call esr_for_data_access_exception. Use ESR14
        for data_store_error. Use ESR15 for data_access_error. Use EDR0.
        (frv_save_data_written_for_interrupts): Save slot containing the insn
        performing the write.
        * frv-sim.h (struct frv_fp_exception_info): Use frv_fsr_traps and
        frv_fsr_ftt.
        (struct frv_interrupt_state): Add 'slot' field.
        (frv_set_interrupt_queue_slot): New function.
        (frv_set_write_queue_slot): New function.

2000-03-24  Dave Brolley  <brolley@redhat.com>

        * mloop.in (_parallel_write_init): Initialize
        frv_interrupt_state.imprecise_interrupt.
        (_parallel_write_queued): After an imprecise interrupt, only perform
        forced writes and floating point writes (for certain exceptions).
        * interrupts.c (handle_interrupt): Set
        frv_interrupt_state.imprecise_interrupt for writeback after an imprecise
        interrupt.
        (frv_process_interrupts): No need to clear f_ne_flags.
        * frv.c (frvbf_signed_integer_divide): Queue writes to GR registers and
        force them to happen even if there is an overflow exception.
        (frvbf_force_update): New function.
        * frv-sim.h (frvbf_force_update): New function.
        (struct frv_interrupt_state): Add imprecise_interrupt.
        (FRV_WRITE_QUEUE_FORCE_WRITE): New macro.
        * sem.c: Regenerate.

2000-03-23  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_rett): Queue FRV_ILLEGAL_INSTRUCTION directly.
        * registers.c (frv_spr): MCIRL -> MCILR.
        * interrupts.c (frv_queue_non_implemented_instruction_interrupt):
        New function.
        (frv_detect_insn_access_interrupts):
        Call frv_queue_non_implemented_instruction_interrupt.
        (frv_process_interrupts): Clear accumulated NE flags.
        * frv.c (frvbf_media_cop): New function.
        (frvbf_set_ne_index): Now takes (SIM_CPU *) as first argument.  Clear
        the NE flag of the given target register.
        (frvbf_model_fr500_u_float_arith): Account for FRdouble registers.
        (frvbf_model_fr500_u_float_dual_arith): Account for FRdouble registers.
        (frvbf_model_fr500_u_float_dual_sqrt): New function.
        (frvbf_model_fr500_u_float_convert): Account for FRdouble registers.
        (frvbf_model_fr500_u_float_dual_convert): New function.
        * frv-sim.h (frvbf_media_cop): New function.
        (GET_FQ): Use H_SPR_FQST0.
        (SET_FQ): Use H_SPR_FQST0.
        (SET_FQ_OPC): Use J_SPR_FQOP0.
        (GET_MSR_EMCI): New macro.
        (frv_queue_non_implemented_instruction_interrupt): New function.
        * arch.h,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

2000-03-08  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_rett): Align new_pc.
        * memory.c (frvbf_read_mem_HI): Align address.
        (frvbf_read_mem_UHI): Align address.
        (frvbf_read_mem_SI): Align address.
        (frvbf_read_mem_DI): Align address.
        (frvbf_read_mem_DF): Align address.
        (frvbf_read_imem_USI): Align address.
        (frvbf_mem_set_HI): Align address.
        (frvbf_mem_set_SI): Align address.
        (frvbf_mem_set_DI): Align address.
        (frvbf_mem_set_DF): Align address.
        (frvbf_mem_set_XI): Align address.
        * registers.c (frv_spr): Initialize FSR0.NS to 1.
        (fr500_spr): Initialize FSR0.NS to 1.
        * interrupts.c (frv_queue_mem_address_not_aligned_interrupt): Check
        whether the exception is masked.
        * frv.c (frvbf_load_quad_GR): Align address.
        (frvbf_store_quad_GR): Align address.
        (frvbf_load_quad_FRint): Align address.
        (frvbf_store_quad_FRint): Align address.
        (frvbf_load_quad_CPR): Align address.
        (frvbf_store_quad_CPR): Align address.
        * frv-sim.h (GET_ISR_EMAM): New macro.

2000-03-08  Dave Brolley  <brolley@redhat.com>

        * traps.c (frvbf_division_exception): Check for masked overflow and
        set NE flags, if necessary.
        (frvbf_check_recovering_store): Queue writes to the hardware.
        (check_registers_available): Removed.
        (which_registers_available): Call frv_{fr,gr}_registers_available.
        (frvbf_clear_ne_flags): Call check_register_access.
        (frvbf_commit): Call check_register_access.
        * registers.h (frv_fr_registers_available): New function.
        (frv_gr_registers_available): New function.
        (frv_check_register_access): New function.
        (frv_check_gr_access): New function.
        (frv_check_fr_access): New function.
        * registers.c (frv_spr): Correct initial value of ISR.
        (fr500_spr): Correct initial value of ISR.
        (frv_fr_registers_available): New function.
        (frv_gr_registers_available): New function.
        (frv_check_register_access): New function.
        (frv_check_gr_access): New function.
        (frv_check_fr_access): New function.
        * interrupts.c (frv_queue_division_exception_interrupt): New function.
        (set_isr_exception_fields): New function.
        (set_exception_status_registers): Set ISR fields for division exception.
        (frv_save_data_written_for_interrupts): Handle CGEN_FN_SF_WRITE.
        * frv.c (frvbf_h_gr_get_handler): New function.
        (frvbf_h_gr_set_handler): New function.
        (frvbf_h_fr_get_handler): New function.
        (frvbf_h_fr_set_handler): New function.
        (frvbf_h_spr_get_handler): Remove special handling for ISR.
        (frvbf_h_spr_set_handler): Remove special handling for ISR.
        (spr_isr_get_handler): Removed.
        (spr_isr_set_handler): Removed.
        (frvbf_signed_integer_divide): New funciton.
        (frvbf_unsigned_integer_divide): New funciton.
        * frv-sim.h (frvbf_h_gr_get_handler): New function.
        (frvbf_h_gr_set_handler): New function.
        (frvbf_h_fr_get_handler): New function.
        (frvbf_h_fr_set_handler): New function.
        (frvbf_signed_integer_divide): New funciton.
        (frvbf_unsigned_integer_divide): New funciton.
        (frv_dtt): New enumeration.
        (struct frv_interrupt_queue_element): Add dtt member.
        (GET_ISR): New macro.
        (SET_ISR): New macro.
        (GET_ISR_EDEM): New macro.
        (SET_ISR_DTT): New macro.
        (SET_ISR_AEXC): New macro.
        (frvbf_division_exception): Add 2 'int' arguments.
        (frvbf_check_non_excepting_divide): Removed.
        * cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

2000-02-29  Dave Brolley  <brolley@redhat.com>

        * traps.c (frv_itrap): Use GET_H_GR, SET_H_GR, GET_H_FR.
        (frv_rett): Use hardware access macros. Write PSR as a whole.
        (next_available_nesr): Check that NECR is valid.
        (next_valid_nesr): Check that NECR is valid.
        (frvbf_check_non_excepting_load): User new NECR access macros. Don't
        call hardware access functions. Use cover macros.
        (check_registers_available): New function.
        (clear_nesr_near): Check register availability.
        (clear_ne_flags): Check register availability.
        (frvbf_clear_ne_flags): Check register availability.
        (frvbf_commit): Check register availability.
        (which_registers_available): New function.
        * sim-main.h (registers.h): #include it.
        (register_control): New cpu field.
        (CPU_REGISTER_CONTROL): New macro.
        * reset.c (frv_initialize): Set HSR0 fields for cache here.
        (frv_power_on_reset): Initialize SPR registers and RSTR.
        (frv_hardware_reset): Initialize SPR registers and RSTR.
        (frv_software_reset): Reset SPR registers and RSTR.
        * options.c (frv_option_handler): Don't set HSR0 fields for cache here.
        Call frv_cache_init.
        * mloop.in (main loop): Check for insn access interrupts before
        executing the insn.
        * interrupts.c (frv_queue_external_interrupt): Use GET_H_PSR_ET.
        (frv_detect_insn_access_interrupts): Don't call hardware access
        functions directly. Use cover macros.
        (check_reset): Don't reset RSTR here.
        (next_available_esr): ESFR -> ESFR_FLAG.
        (next_available_edr): ESFR -> ESFR_FLAG.
        (clear_exception_status_registers): Use GET_ESFR and SET_ESFR.
        ESFR -> ESFR_FLAG.
        (frv_break_interrupt): Don't call hardware access functions directly.
        Use cover macros.
        (frv_program_or_software_interrupt): Ditto.
        (frv_external_interrupt): Ditto.
        * frv.c (frvbf_fetch_register): Don't call 'get' functions directly.
        (frvbf_store_register): Don't call 'set' functions directly.
        (frvbf_h_gr_double_get_handler): Use GET_H_GR.
        (frvbf_h_gr_double_set_handler): Use SET_H_GR.
        (frvbf_h_fr_double_get_handler): Use GET_H_FR.
        (frvbf_h_fr_double_set_handler): Use SET_H_FR.
        (frvbf_h_fr_int_get_handler): Use GET_H_FR.
        (frvbf_h_fr_int_set_handler): Use SET_H_FR.
        (frvbf_h_cpr_double_get_handler): Use GET_H_CPR.
        (frvbf_h_cpr_double_set_handler): Use SET_H_CPR.
        (frvbf_h_gr_quad_set_handler): Use SET_H_GR.
        (frvbf_h_fr_quad_set_handler): Use SET_H_FR.
        (frvbf_h_spr_get_handler): Check SPR access. Call renamed functions.
        Support shadow registers.
        (frvbf_h_spr_set_handler): Check SPR access. Call renamed functions.
        Support shadow registers.
        (spr_psr_get_handler): Renamed from frvbf_h_psr_get_handler.
        (spr_psr_set_handler): Renamed from frvbf_h_psr_set_handler.
        (spr_tbr_get_handler): Renamed from frvbf_h_tbr_get_handler.
        (spr_tbr_set_handler): Renamed from frvbf_h_tbr_set_handler.
        (spr_bpsr_get_handler): Renamed from frvbf_h_bpsr_get_handler.
        (spr_bpsr_set_handler): Renamed from frvbf_h_bpsr_set_handler.
        (spr_ccr_get_handler): Renamed from frvbf_h_ccr_get_handler.
        (spr_ccr_set_handler): Renamed from frvbf_h_ccr_set_handler.
        (spr_lr_get_handler): Renamed from frvbf_h_lr_get_handler.
        (spr_lr_set_handler): Renamed from frvbf_h_lr_set_handler.
        (spr_cccr_get_handler): Renamed from frvbf_h_cccr_get_handler.
        (spr_cccr_set_handler): Renamed from frvbf_h_cccr_set_handler.
        (spr_isr_get_handler): Renamed from frvbf_h_isr_get_handler.
        (spr_isr_set_handler): Renamed from frvbf_h_isr_set_handler.
        (spr_sr_get_handler): Renamed from frvbf_h_sr_get_handler.
        (spr_sr_set_handler): Renamed from frvbf_h_sr_set_handler.
        (frvbf_h_psr_esr_set_handler): Update to conform to FRV architecture
        version 1.3a.
        (spr_ccr_get_handler): Don't reference the hardware directly.
        (spr_ccr_set_handler): Don't reference the hardware directly.
        (spr_cccr_get_handler): Don't reference the hardware directly.
        (spr_cccr_set_handler): Don't reference the hardware directly.
        (spr_sr_get_handler): New function.
        (spr_sr_set_handler): New function.
        (frvbf_switch_supervisor_user_context): Temporarily switch to
        supervisor mode.
        (frvbf_store_quad_GR): Don't call handler directly.
        (frvbf_store_quad_FRint): Don't call handler directly.
        (frvbf_store_quad_CPR): Don't call handler directly.
        (frvbf_clear_all_accumulators): Removed.
        (frvbf_clear_accumulators): New function.
        (frvbf_model_fr500_u_media): Expand busy_adjustment to 8 members.
        Account for in_ACCGi and out_ACCGk.
        * frv-sim.h (RSTR_HARDWARE_RESET): New macro.
        (RSTR_SOFTWARE_RESET): New macro.
        (spr_psr_get_handler): Renamed from frvbf_h_psr_get_handler.
        (spr_psr_set_handler): Renamed from frvbf_h_psr_set_handler.
        (spr_tbr_get_handler): Renamed from frvbf_h_tbr_get_handler.
        (spr_tbr_set_handler): Renamed from frvbf_h_tbr_set_handler.
        (spr_bpsr_get_handler): Renamed from frvbf_h_bpsr_get_handler.
        (spr_bpsr_set_handler): Renamed from frvbf_h_bpsr_set_handler.
        (spr_ccr_get_handler): Renamed from frvbf_h_ccr_get_handler.
        (spr_ccr_set_handler): Renamed from frvbf_h_ccr_set_handler.
        (spr_lr_get_handler): Renamed from frvbf_h_lr_get_handler.
        (spr_lr_set_handler): Renamed from frvbf_h_lr_set_handler.
        (spr_cccr_get_handler): Renamed from frvbf_h_cccr_get_handler.
        (spr_cccr_set_handler): Renamed from frvbf_h_cccr_set_handler.
        (spr_isr_get_handler): Renamed from frvbf_h_isr_get_handler.
        (spr_isr_set_handler): Renamed from frvbf_h_isr_set_handler.
        (spr_sr_get_handler): Renamed from frvbf_h_sr_get_handler.
        (spr_sr_set_handler): Renamed from frvbf_h_sr_set_handler.
        (frvbf_clear_all_accumulators): Removed.
        (frvbf_clear_accumulators): New function.
        (GET_HSR0): Use GET_H_SPR.
        (SET_HSR0): Use SET_H_SPR.
        (CLEAR_HSR0_ICE): New macro.
        (CLEAR_HSR0_DCE): New macro.
        (GET_IHSR8): Use GET_H_SPR.
        (GET_PSR): New macro.
        (SET_PSR_ET): New macro.
        (GET_PSR_PS): New macro.
        (SET_PSR_S): New macro.
        (GET_ESFR): Changed to reference entire register.
        (SET_ESFR): Changed to reference entire register.
        (GET_ESFR_FLAG): New macro.
        (SET_ESFR_FLAG): New macro.
        (NECR_ELOS): Removed.
        (NECR_NEN): Removed.
        (NECR_VALID): Removed.
        (GET_NECR): New macro.
        (GET_NECR_ELOS): New macro.
        (GET_NECR_NEN): New macro.
        (GET_NECR_VALID): New macro.
        (NESR_RANGE): Removed.
        (GET_NESR): Use GET_H_SPR.
        (GET_NE_FLAGS): Use GET_H_SPR.
        * cache.h (CACHE_INITIALIZED): New macro.
        * Makefile.in (SIM_OBJS): Add registers.o.
        (SIM_EXTRA_DEPS): Add registers.h.
        (registers.o): New target.
        * cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

2000-02-17  Dave Brolley  <brolley@redhat.com>

        * interrupts.c (frv_interrupt_table): Update priority order and handler
        offsets to conform to the architecture version 1.3a.
        * frv-sim.h (frv_interrupt_kind): Update priority order to conform
        to the architecture version 1.3a.

2000-02-17  Dave Brolley  <brolley@redhat.com>

        * interrupts.c (frv_interrupt_table): Update priority order and handler
        offsets to conform to the latest specifications.
        (frv_queue_interrupt): Correct comment. Identical interrupts can be
        queued. New variable 'iclass' used to test for external interrupts.
        * frv-sim.h (frv_interrupt_kind): Update priority order to conform
        to the latest specifications.

2000-01-20  Dave Brolley  <brolley@redhat.com>

        * sim-if.c (sim_open): Move frv-specific initialization to
        frv_initialize in reset.c.
        * interrupts.c (check_reset): Use RSTR_ADDRESS. Check and reset RSTR
        status bits for hardware vs software reset.
        * reset.c: New file.
        * frv-sim.h (frv_initialize): New function.
        (frv_power_on_reset): New function.
        (frv_hardware_reset): New function.
        (frv_software_reset): New function.
        (RSTR_ADDRESS): New macro.
        (RSTR_INITIAL_VALUE): New macro.
        (GET_RSTR_HR): New macro.
        (GET_RSTR_SR): New macro.
        (SET_RSTR_H): New macro.
        (SET_RSTR_S): New macro.
        (CLEAR_RSTR_P): New macro.
        (CLEAR_RSTR_H): New macro.
        (CLEAR_RSTR_S): New macro.
        (CLEAR_RSTR_HR): New macro.
        (CLEAR_RSTR_SR): New macro.

2000-01-03  Dave Brolley  <brolley@cygnus.com>

        * mloop.in (execute): Only call modeling function if the pointer is not
        NULL.
        * frv.c (frvbf_model_insn_after): Only access FR500_MODEL_DATA for
        fr500.

2000-01-03  Dave Brolley  <brolley@cygnus.com>

        * options.c (OPTION_FRV_MEMORY_LATENCY): New enumerator.
        (frv_options): Add --memory-latency.
        (frv_option_handler): Handle FRV_OPTION_MEMORY_LATENCY.
        * mloop.in (@cpu@_simulate_insn_prefetch): Use cache memory_latency.
        * frv.c (SET_ACC_USE_IS_MEDIA_P1): operate on d->curr_acc_p1
        (SET_ACC_USE_NOT_MEDIA_P1): operate on d->curr_acc_p1
        (SET_ACC_USE_IS_MEDIA_P2): operate on d->curr_acc_p1
        (SET_ACC_USE_NOT_MEDIA_P2): operate on d->curr_acc_p1
        (update_latencies): Only clear usage flags if the register has no
        target latency.
        (frvbf_model_insn_before): Update cur_acc_p1 and cur_acc_p2. Use | (or)
        not |= (or assgnment).
        (frvbf_model_insn_after): Print post processing wait for all insns.
        Update prev_acc_p1 and prev_acc_p2.
        (frvbf_model_fr500_u_gr_load_store): Use cache memory_latency.
        (frvbf_model_fr500_u_fr_load_store): Use cache memory_latency.
        (frvbf_model_fr500_u_swap): Use cache memory_latency.
        (frvbf_model_fr500_u_media): Use busy_adjustment[4] for out_ACC40Sk.
        (frvbf_model_fr500_u_media): Use busy_adjustment[5] for out_ACC40Uk.
        (frvbf_model_fr500_u_media_quad_arith): New function.
        (frvbf_model_fr500_u_media_dual_mul): New function.
        (frvbf_model_fr500_u_media_quad_mul): New function.
        (frvbf_model_fr500_u_media_quad_complex): New function.
        (frvbf_model_fr500_u_media_dual_expand): New function.
        (frvbf_model_fr500_u_media_dual_unpack): New function.
        (frvbf_model_fr500_u_media_dual_btoh): New function.
        (frvbf_model_fr500_u_media_dual_htob): New function.
        (frvbf_model_fr500_u_media_dual_btohe): New function.
        (frv_ref_SI): New function.
        * cache.h (FRV_CACHE): Add memory_latency field.
        * cache.c (frv_cache_init): Initialize memory_latency.
        * arch.h,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-12-17  Dave Brolley  <brolley@cygnus.com>

        * sim-if.c (sim_open): Initialize insn prefetch and reset register.
        * options.c (OPTIONS_FRV_PROFILE_CACHE): New enumeration.
        (OPTIONS_FRV_PROFILE_PARALLEL): New enumeration.
        (OPTIONS_FRV_TIMER): New enumeration.
        (frv_options): Add --profile-cache, --profile-parallel, --timer.
        (frv_option_handler): Override common implementation of -p. Handle
        --profile-cache, --profile-parallel, --timer.
        * mloop.in (execute): Call profiling functions if the timer interrupt
        is enabled.
        (@cpu@_simulate_insn_prefetch): New function.
        (main loop): Call @cpu@_simulate_insn_prefetch.
        * interrupts.c (frv_queue_interrupt): Don't queue two external
        interrupts of the same priority.
        (frv_queue_external_interrupt): New function.
        (frv_external_interrupt): New function.
        (handle_interrupt): Handle external interrupts.
        (check_reset): New function.
        (frv_process_interrupts): Call check_reset.
        * frv.c: Include "bfd.h"
        (frvbf_h_psr_get_handler): Set the PIL field.
        (frvbf_h_psr_set_handler): Get the PIL field.
        (DUAL_REG): New macro.
        (DUAL_DOUBLE): New macro.
        (SET_USE_IS_FPOP): New macro.
        (SET_USE_NOT_FPOP): New macro.
        (USE_IS_FPOP): New macro.
        (SET_USE_IS_MEDIA): New macro.
        (SET_USE_NOT_MEDIA): New macro.
        (USE_IS_MEDIA_P1): New macro.
        (SET_USE_IS_MEDIA_P1): New macro.
        (SET_USE_NOT_MEDIA_P1): New macro.
        (SET_USE_IS_MEDIA_P2): New macro.
        (SET_USE_NOT_MEDIA_P2): New macro.
        (USE_IS_MEDIA_P2): New macro.
        (SET_ACC_USE_IS_MEDIA_P1): New macro.
        (SET_ACC_USE_NOT_MEDIA_P1): New macro.
        (ACC_USE_IS_MEDIA_P1): New macro.
        (SET_ACC_USE_IS_MEDIA_P2): New macro.
        (SET_ACC_USE_NOT_MEDIA_P2): New macro.
        (ACC_USE_IS_MEDIA_P2): New macro.
        (RESOURCE_IDIV): New macro.
        (RESOURCE_FDIV): New macro.
        (RESOURCE_SQRT): New macro.
        (fr_busy_adjust): New array.
        (acc_busy_adjust): New array.
        (apply_latency_adjustments): New function.
        (update_latencies): New function.
        (handle_wait_cycles): New function.
        (handle_resource_wait): New function.
        (update_target_latencies): New function.
        (frvbf_model_insn_before): Add resource latency to cycle counts.
        (frvbf_model_insn_after): Add resource latency to cycle counts.
        (update_GR_latency): New function.
        (update_GRdouble_latency): New function.
        (update_FR_latency): New function.
        (update_FRdouble_latency): New function.
        (decrease_ACC_busy): New function.
        (decrease_FR_busy): New function.
        (increase_FR_busy): New function.
        (update_ACC_latency): New function.
        (update_CCR_latency): New function.
        (update_idiv_resource_latency): New function.
        (update_fdiv_resource_latency): New function.
        (update_fsqrt_resource_latency): New function.
        (vliw_wait_for_GR): New function.
        (vliw_wait_for_GRdouble): New function.
        (vliw_wait_for_FR): New function.
        (vliw_wait_for_FRdouble): New function.
        (vliw_wait_for_CCR): New function.
        (vliw_wait_for_ACC): New function.
        (vliw_wait_for_idiv_resource): New function.
        (vliw_wait_for_fdiv_resource): New function.
        (vliw_wait_for_fsqrt_resource): New function.
        (enforce_full_fr_latency): New function.
        (frvbf_model_fr500_u_exec): New function.
        (frvbf_model_fr500_u_integer): New function.
        (frvbf_model_fr500_u_imul): New function.
        (frvbf_model_fr500_u_idiv): New function.
        (frvbf_model_fr500_u_branch): New function.
        (frvbf_model_fr500_u_set_hilo): New function.
        (frvbf_model_fr500_u_gr_load_store): New function.
        (frvbf_model_fr500_u_fr_load_store): New function.
        (frvbf_model_fr500_u_swap): New function.
        (frvbf_model_fr500_u_fr2fr): New function.
        (frvbf_model_fr500_u_fr2gr): New function.
        (frvbf_model_fr500_u_spr2gr): New function.
        (frvbf_model_fr500_u_gr2fr): New function.
        (frvbf_model_fr500_u_gr2spr): New function.
        (post_wait_for_FR): New function.
        (post_wait_for_FRdouble): New function.
        (post_wait_for_ACC): New function.
        (post_wait_for_CCR): New function.
        (post_wait_for_fdiv): New function.
        (post_wait_for_fsqrt): New function.
        (adjust_float_register_busy): New function.
        (adjust_double_register_busy): New function.
        (restore_float_register_busy): New function.
        (restore_double_register_busy): New function.
        (frvbf_model_fr500_u_float_arith): New function.
        (frvbf_model_fr500_u_float_dual_arith): New function.
        (frvbf_model_fr500_u_float_div): New function.
        (frvbf_model_fr500_u_float_sqrt): New function.
        (frvbf_model_fr500_u_float_compare): New function.
        (frvbf_model_fr500_u_float_dual_compare): New function.
        (frvbf_model_fr500_u_float_convert): New function.
        (frvbf_model_fr500_u_media): New function.
        (frvbf_model_fr500_u_barrier): New function.
        (frvbf_model_fr500_u_membar): New function.
        * frv-sim.h (LEUINT): New macro.
        (GET_HSR0_SA): New macro.
        (struct frv_interrupt_timer): New struct.
        (struct frv_interrupt_state): Add timer fiield.
        (frv_queue_external_interrupt): New function.
        (frv_external_interrupt): New function.
        (frv_profile_info): New function.
        (PROFILE_CACHE_IDX): New enumerator.
        (PROFILE_PARALLEL_IDX): New enumerator.
        (PROFILE_cache): New macro.
        (PROFILE_parallel): New macro.
        (WITH_PROFILE_CACHE_P): New macro.
        (WITH_PROFILE_PARALLEL_P): New macro.
        * cache.h (FRV_CACHE): Add last_was_hit field.
        * cache.c (get_tag): Use new last_was_hit field.
        (frv_cache_read): Ditto.
        (frv_cache_write): Ditto.
        * arch.h,cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-12-13  Dave Brolley  <brolley@cygnus.com>

        * frv.c (frvbf_h_spr_set_handler): Handle accumulator guards.
        (frvbf_clear_all_accumulators): Pass frvbf_h_acc40S_set to
        sim_queue_fn_di_write.
        (frvbf_media_cut_ss): New function.
        * frv-sim.h (frvbf_media_cut_ss): New function.
        * cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-12-13  Dave Brolley  <brolley@cygnus.com>

        * pipeline.c (check_insn_major_constraints): F-4, F-8 and M-8 have
        no constraints.
        * interrupts.c (frv_queue_illegal_instruction_interrupt): Use
        FRV_IS_FLOAT_INSN and FRV_IS_MEDIA_INSN.
        (frv_detect_insn_access_interrupts): Use FRV_IS_FLOAT_INSN and
        FRV_IS_MEDIA_INSN.
        * frv.c (frvbf_model_simple_u_exec): New function.
        * frv-sim.h (FRV_IS_FLOAT_INSN): Range includes F-8.
        (FRV_IS_MEDIA_INSN): Range includes M-8.

        * Makefile.in (stamp-cpu): add 'simple' to the list of machines.
        * arch.c,arch.h,cpu.h,cpuall.h,decode.c,decode.h,model.c,sem.c:
        Regenerate.

1999-12-10  Dave Brolley  <brolley@cygnus.com>

        * traps.c (check_registers_available): New function.
        (clear_ne_flags): Generate register_exception if register(s) not
        available.
        (frvbf_commit): Generate register_exception if register(s) not
        available.
        * interrupts.c (frv_program_or_software_interrupt): No need to copy
        GR4-GR7 to SR0-SR4.
        * frv.c (frvbf_h_psr_set_handler): Special handling for PSR.S and
        PSR.ESR.
        (frvbf_h_psr_s_set_handler): New function.
        (frvbf_h_psr_esr_set_handler): New function.
        (frvbf_switch_supervisor_user_context): New function.
        (frvbf_scan_result): Reflect latest ISA.
        * frv-sim.h (frvbf_h_psr_s_set_handler): New function.
        (frvbf_h_psr_esr_set_handler): New function.
        (frvbf_switch_supervisor_user_context): New function.
        (GET_HSR0_FRN): New Macro.
        (GET_HSR0_GRN): New Macro.
        (GET_HSR0_FRHE): New Macro.
        (GET_HSR0_FRLE): New Macro.
        (GET_HSR0_GRHE): New Macro.
        (GET_HSR0_GRLE): New Macro.
        (frv_ec): New value for FRV_EC_COMMIT_EXCEPTION.
        (GET_ESFR): New bit ordering.
        (SET_ESFR): New bit ordering.
        * cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-12-10  Michael Meissner  <meissner@cygnus.com>

        * Makefile.in (sim-if.o): Add eng.h dependency.

1999-12-09  Dave Brolley  <brolley@cygnus.com>

        * mloop.in (execute): Pass sc->first_insn_p to @cpu@_model_insn_before.
        Pass sc->last_insn_p to @cpu@_model_insn_before.
        (main loop): Compute sc->first_insn_p.
        * frv.c (frvbf_model_insn_before): Set state variables.
        (frvbf_model_insn_after): Count basic cycles. Set state variables.
        (frvbf_model_fr500_u_integer): Remove.
        * arch.h,cpu.h,decode.h,model.c: Regenerate.

1999-12-07  Dave Brolley  <brolley@cygnus.com>

        * sim-main.h (cache.h): Include it.
        (insn_cache): New member.
        (data_cache): New member.
        (CPU_INSN_CACHE): New macro.
        (CPU_DATA_CACHE): New macro.
        * sim-if.c (WANT_CPU): New macro.
        (WANT_CPU_FRVBF): New macro.
        (sim_open): Call sim_add_option_table. Call frv_cache_init for the
        data and insn caches for each cpu.
        (sim_close): Call frv_cache_term for the insn and data caches of each
        cpu.
        * mloop.in (extract): Read insn from the cache.
        (main loop): Access the insn cache in order to maintain stats.
        * memory.c (data_non_cache_access): New function.
        (insn_non_cache_access): New function.
        (frvbf_read_mem_QI): Attempt to read from the cache first.
        (frvbf_read_mem_UQI): Ditto.
        (frvbf_read_mem_HI): Ditto.
        (frvbf_read_mem_UHI): Ditto.
        (frvbf_read_mem_SI): Ditto.
        (frvbf_read_mem_DI): Ditto.
        (frvbf_read_mem_DF): Ditto.
        (frvbf_read_imem_USI): New function.
        (frvbf_write_mem_QI): Write through the cache is it is enabled.
        (frvbf_write_mem_UQI): Ditto.
        (frvbf_write_mem_HI): Ditto.
        (frvbf_write_mem_UHI): Ditto.
        (frvbf_write_mem_SI): Ditto.
        (frvbf_write_mem_DI): Ditto.
        (frvbf_write_mem_DF): Ditto.
        (frvbf_mem_set_QI): New function.
        (frvbf_mem_set_HI): New function.
        (frvbf_mem_set_SI): New function.
        (frvbf_mem_set_DI): New function.
        (frvbf_mem_set_DF): New function.
        (frvbf_mem_set_XI): New function.
        * interrupts.c (frv_save_data_written_for_interrupts): Handle
        CGEN_FN_MEM_QI_WRITE,
        CGEN_FN_MEM_HI_WRITE, CGEN_FN_MEM_SI_WRITE, CGEN_FN_MEM_DI_WRITE,
        CGEN_FN_MEM_DF_WRITE, CGEN_FN_MEM_XI_WRITE.
        * frv.c (frvbf_load_quad_GR): Call frvbf_read_mem_SI.
        Call sim_queue_fn_mem_xi_write.
        (frvbf_load_quad_FRint): Call frvbf_read_mem_SI.
        Call sim_queue_fn_mem_xi_write.
        (frvbf_load_quad_CPR): Call frvbf_read_mem_SI.
        Call sim_queue_fn_mem_xi_write.
        (frvbf_insn_cache_preload): New function. 
        (frvbf_data_cache_preload): New function. 
        (frvbf_insn_cache_unlock): New function. 
        (frvbf_data_cache_unlock): New function. 
        (frvbf_insn_cache_invalidate): New function. 
        (frvbf_data_cache_invalidate): New function. 
        (frvbf_data_cache_flush): New function. 
        * frv-sim.h (sim-options.h): Include it.
        (GET_HSR0): New macro.
        (SET_HSR0): New macro. 
        (GET_HSR0_ICE): New macro. 
        (SET_HSR0_ICE): New macro. 
        (GET_HSR0_DCE): New macro. 
        (SET_HSR0_DCE): New macro. 
        (GET_HSR0_CBM): New macro. 
        (GET_HSR0_RME): New macro. 
        (GET_IHSR8): New macro. 
        (GET_IHSR8_NBC): New macro. 
        (frvbf_insn_cache_preload): New function.
        (frvbf_data_cache_preload): New function.
        (frvbf_insn_cache_unlock): New function.
        (frvbf_data_cache_unlock): New function.
        (frvbf_insn_cache_invalidate): New function.
        (frvbf_data_cache_invalidate): New function.
        (frvbf_data_cache_flush): New function.
        (insn_non_cache_access): New function.
        (frvbf_read_imem_USI): New function.
        (frvbf_mem_set_QI): New function.
        (frvbf_mem_set_HI): New function.
        (frvbf_mem_set_SI): New function.
        (frvbf_mem_set_DI): New function.
        (frvbf_mem_set_DF): New function.
        (frvbf_mem_set_XI): New function.
        (frv_options): FRV specific command line options.
        * Makefile.in (SIM_OBJS): Add options.o and cache.o.
        (SIM_EXTRA_DEPS): Add $(sim-options_h).
        (cache.o): New target.
        (options.o): New target.
        * cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.
        * cache.h: New file.
        * cache.c: New file.
        * options.c: New file.

1999-11-29  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frvbf_check_non_excepting_load): Use new NE_FLAG macros.
        (frvbf_check_non_excepting_divide): Ditto.
        (clear_ne_flags): Ditto
        (frvbf_commit): Ditto.
        * pipeline.c (frv_pipeline_add_insn): Clear the NE index for all insns.
        * mloop.in (_parallel_write_init): Clear NE flags here.
        * interrupts.c (frv_queue_fp_exception_interrupt): Set NE flags here
        for non excepting insns. Also check for masked interrupts here.
        (frv_process_interrupts): Write NE flags here.
        (set_fp_exception_registers): No longer check for masked interrupts
        here.
        (check_for_compound_interrupt): No need to worry about masked
        interrupts.
        * frv-sim.h (frv_interrupt_state): Add f_ne_flags member.
        (GET_NE_FLAGS): New macro.
        (SET_NE_FLAGS): New macro.
        (GET_NE_FLAG): Operate on accumulated argument.
        (SET_NE_FLAG): Operate on accumulated argument.
        (CLEAR_NE_FLAG): Operate on accumulated argument.
        * Makefile.in (FRVBF_INCLUDE_DEPS): Add $(SIM_EXTRA_DEPS)
        (frv.o): Correct dependencies.
        (traps.o): Ditto.
        (pipeline.o): Ditto.
        (interrupts.o): Ditto.
        (memory.o): Ditto.
        * sem.c: Regenerate.

1999-11-26  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frvbf_fpu_error): Only call frv_queue_fp_exception if
        there is an exception indicated in the mask.
        * pipeline.c (frv_pipeline_add_insn): Clear ne_index in the interrupt
        state when adding a floating point insn to the pipeline.
        * interrupts.c (set_fp_exception_registers): Set NE flag for
        non-excepting insns.
        * frv-sim.h (frvbf_h_fr_double_get_handler): Mode of data is DF.
        (frvbf_h_fr_double_set_handler): Mode of data is DF.
        (frvbf_h_fr_int_get_handler): New function.
        (frvbf_h_fr_int_set_handler): New function.
        (frvbf_set_ne_index): New function.
        (NE_NOFLAG): New macro.
        (frv_interrupt_state): Add ne_index member.
        * frv.c (frvbf_h_fr_double_get_handler): Mode of data is DF.
        (frvbf_h_fr_double_set_handler): Mode of data is DF.
        (frvbf_h_fr_int_get_handler): New function.
        (frvbf_h_fr_int_set_handler): New function.
        (frvbf_set_ne_index): New function.
        * cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-11-24  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-11-23  Dave Brolley  <brolley@cygnus.com>

        * frv-sim.h (frvbf_media_cut): New function.
        * frv.c (frvbf_media_cut): New function.
        * cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-11-22  Dave Brolley  <brolley@cygnus.com>

        * frv-sim.h (frvbf_clear_all_accumulators): New function.
        * frv.c.h (frvbf_clear_all_accumulators): New function.
        * cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-11-18  Dave Brolley  <brolley@cygnus.com>

        * pipeline.c (frv_pipeline_add_insn): Only clear MSR0 and FSR0 fields
        if this is the first insn of its class in the pipeline.
        * frv-sim.h (frvbf_media_register_not_aligned): New function.
        * traps.c (frvbf_media_register_not_aligned): New function.
        * cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-11-17  Dave Brolley  <brolley@cygnus.com>

        * pipeline.c (frv_pipeline_add_insn): Clear MSRx.SIE fields.
        * frv-sim.h (OR_MSR_SIE): New macro.
        (CLEAR_MSR_SIE): New macro.
        (frvbf_media_overflow): Now takes sie argument.
        (frv_set_mp_exception_registers): Now takes sie argument.
        * interrupts.c (frv_set_mp_exception_registers): Now takes sie argument.
        Set MSRx.SIE field.
        * cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-11-15  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frv_mtrap): New function.
        (frvbf_media_cr_not_aligned): New function.
        (frvbf_media_acc_not_aligned): New function.
        (frvbf_media_overflow): New function.
        * pipeline.c (frv_pipeline_add_insn): Clear MSR fields.
        * interrupts.c: Call frv_set_mp_exception_registers.
        (frv_set_mp_exception_registers): New function.
        * frv-sim.h (frv_msr_mtt): New enumeration.
        (GET_MSR): New macro.
        (SET_MSR): New macro.
        (GET_MSR_AOVF): New macro.
        (SET_MSR_AOVF): New macro.
        (GET_MSR_OVF): New macro.
        (SET_MSR_OVF): New macro.
        (CLEAR_MSR_OVF): New macro.
        (GET_MSR_MTT): New macro.
        (SET_MSR_MTT): New macro.
        (frv_set_mp_exception_registers): New function.
        (frv_mtrap): New function.
        (FRV_IS_MEDIA_INSN): New macro.
        * cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-11-10  Dave Brolley  <brolley@cygnus.com>

        * sim-main.h (_sim_cpu): Add debug_state member.
        * mloop.in (_parallel_write_queued): Clear data_written.length.
        * interrupts.c (frv_interrupt_table): Offset of BREAK_EXCEPTION
        handler is 0xff.
        (frv_queue_break_interrupt): New function.
        (frv_break_interrupt): New function.
        (handle_interrupt): Handle break_interrupt.
        (frv_non_operating_interrupt): Now takes interrupt_kind.
        * frv-sim.h (frv_queue_break_interrupt): New function.
        (frv_break_interrupt): New function.
        (frv_break): New function.
        (frv_non_operating_interrupt): Now takes interrupt_kind.
        * cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-11-09  Dave Brolley  <brolley@cygnus.com>

        * pipeline.c (frv_pipeline_add_insn): Clear FSR0.FTT when adding
        a floating point insn.
        * traps.c (frvbf_fpu_error): Map fpu status to frv interrupts.
        * interrupts.c (frv_queue_illegal_instruction_interrupt): Call
        frv_queue_fp_exception_interrupt.
        (frv_queue_fp_exception_interrupt): New function.
        (next_available_fq): New function.
        (set_fp_exception_registers): New function.
        (set_exception_status_registers): Now returns 1 if interrupt not masked.
        (check_for_compound_interrupt): Now returns NULL if interrupt masked.
        (frv_program_interrupt): Don't process interrupt if it is masked.
        * frv.c (frvbf_h_fr_double_get_handler): Call
        frv_queue_fp_exception_interrupt.
        (frvbf_h_fr_double_set_handler): Call frv_queue_fp_exception_interrupt.
        (frvbf_h_fr_quad_set_handler): Call frv_queue_fp_exception_interrupt.
        (frvbf_store_quad_FRint): Call frv_queue_fp_exception_interrupt.
        * frv-sim.h: Get/set hardware directly in GET/SET macros.
        (frv_fp_exception_info): New struct type.
        (frv_interrupt_queue_element): Add fp_info member.
        (frv_fsr_traps): New enumeration.
        (frv_fsr_ftt): New enumeration.
        (frv_sie): New enumeration.
        (frv_miv): New enumeration.
        (GET_FSR): New macro.
        (SET_FSR): New macro.
        (GET_FSR_TEM): New macro.
        (SET_FSR_QNE): New macro.
        (SET_FSR_FTT): New macro.
        (GET_FSR_AEXC): New macro.
        (SET_FSR_AEXC): New macro.
        (GET_FQ): New macro.
        (SET_FQ): New macro.
        (SET_FQ_OPC): New macro.
        (SET_FQ_MIV): New macro.
        (SET_FQ_SIE): New macro.
        (SET_FQ_FTT): New macro.
        (SET_FQ_CEXC): New macro.
        (GET_FQ_VALID): New macro.
        (SET_FQ_VALID): New macro.
        (frv_queue_fp_exception_interrupt): New function.
        (FRV_IS_FLOAT_INSN): New macro.

1999-11-04  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frvbf_fpu_error): No floating point errors need to be
        detected.
        * interrupts.c (clear_exception_status_registers): Clear 'valid' fields
        of the ESR registers too.
        (set_exception_status_registers): Don't set EAR for any precise
        interrupts. Register index should be 1 for insns in PIPE_I1. Clear
        ESR.EAV and ESR.EDV if not setting them. Set ESR.VALID.
        (non_operating_interrupt): No need for return code.
        (frv_program_or_software_interrupt): Process interrupt regardless
        of operating mode. If PSR.ET was not set at the start of processing,
        then stop the simulation with a message.
        (frv_save_data_written_for_interrupts): Handle CGEN_FN_XI_WRITE and
        CGEN_MEM_XI_WRITE.
        * frv.c (frvbf_h_gr_quad_set_handler): New function.
        (frvbf_h_fr_quad_set_handler): New function.
        (frvbf_h_cpr_quad_set_handler): New function.
        (frvbf_load_quad_GR): Renamed from frvbf_load_multiple_GR. Use new
        sim_queue_fn_xi_write.
        (frvbf_load_quad_FRint): Renamed from frvbf_load_multiple_GR. Use new
        sim_queue_fn_xi_write.
        (frvbf_load_quad_CPR): Renamed from frvbf_load_multiple_GR. Use new
        sim_queue_fn_xi_write.
        (frvbf_store_quad_GR): Renamed from frvbf_store_multiple_GR. Use new
        sim_queue_mem_xi_write.
        (frvbf_store_quad_FRint): Renamed from frvbf_store_multiple_GR. Use new
        sim_queue_mem_xi_write.
        (frvbf_store_quad_CPR): Renamed from frvbf_store_multiple_GR. Use new
        sim_queue_mem_xi_write.
        * frv-sim.h (frvbf_h_gr_quad_set_handler): New function.
        (frvbf_h_fr_quad_set_handler): New function.
        (frvbf_h_cpr_quad_set_handler): New function.
        (SET_ESR_VALID): New macro.
        (CLEAR_ESR_VALID): New macro.
        (CLEAR_ESR_EAV): New macro.
        (CLEAR_ESR_EDV): New macro.
        * sem.c: Regenerate.

1999-11-02  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frv_core_signal): Call
        frv_queue_mem_address_not_aligned_interrupt.
        * mloop.in (_parallel_write_queued): Call
        frv_save_data_written_for_interrupts.
        * frv.c (frvbf_h_gr_double_get_handler): Call
        frv_queue_register_exception_interrupt.
        (frvbf_h_cpr_double_get_handler): Call
        frv_queue_register_exception_interrupt.
        (frvbf_h_cpr_double_set_handler): Call
        frv_queue_register_exception_interrupt.
        (frvbf_load_multiple_GR): Call
        frv_queue_register_exception_interrupt.
        (frvbf_store_multiple_GR): Call
        frv_queue_register_exception_interrupt.
        (frvbf_load_multiple_CPR): Call
        frv_queue_register_exception_interrupt.
        (frvbf_store_multiple_CPR): Call
        frv_queue_register_exception_interrupt.
        (frvbf_h_tbr_get_handler): Fix TBR.TBA mask.
        * interrupts.c (frv_queue_software_interrupt): Now returns interrupt
        queue element.
        (frv_queue_program_interrupt): Now returns interrupt queue element.
        (frv_queue_illegal_instruction_interrupt): Now returns interrupt queue
        element.
        (frv_queue_interrupt): Now returns interrupt queue element.
        (frv_queue_register_exception_interrupt): New function.
        (frv_queue_mem_address_not_aligned_interrupt): New function.
        (frv_save_data_written_for_interrupts): New function.
        (next_available_edr): EDR registers available in blocks of 4.
        (clear_exception_status_registers): New function.
        (set_exception_status_registers): Pass esr to SET_ESR* macros.

        * frv-sim.h (struct frv_data_written): New struct type.
        (frv_interrupt_queue_element): Add data_written member.
        (frv_queue_software_interrupt): Now returns interrupt queue element.
        (frv_queue_program_interrupt): Now returns interrupt queue element.
        (frv_queue_illegal_instruction_interrupt): Now returns interrupt queue
        element.
        (frv_queue_interrupt): Now returns interrupt queue element.
        (frv_queue_register_exception_interrupt): New function.
        (frv_queue_mem_address_not_aligned_interrupt): New function.
        (frv_save_data_written_for_interrupts): New function.

1999-10-27  Dave Brolley  <brolley@cygnus.com>

        * interrupts.c (ITABLE_ENTRY): New macro.
        (frv_interrupt_table): Add exception codes.
        (next_available_esr): New function.
        (next_available_edr): New function.
        (set_edr_register): New function.
        (set_exception_status_registers): New function.
        (check_for_compound_interrupt): Record information on all interrupts
        found.
        (frv_program_interrupt): Always call check_for_compound_interrupt.
        * frv.c (frvbf_h_pc_set_handler): Removed.
        (frvbf_h_spr_get_handler): Handle LR register.
        (frvbf_h_spr_set_handler): Handle LR register.
        (frvbf_h_lr_get_handler): New function.
        (frvbf_h_lr_set_handler): New function.
        * frv-sim.h (frvbf_h_lr_get_handler): New function.
        (frvbf_h_lr_set_handler): New function.
        (frv_ec): New enumeration.
        (frv_interrupt): Add frv_ec field.
        (frv_rec): New enumeration.
        (frv_daec): New enumeration.
        (frv_interrupt_queue_element): Add eaddress, rec, iaec, daec fields.
        (SET_ESR_EC): New macro.
        (SET_ESR_REC): New macro.
        (SET_ESR_IAEC): New macro.
        (SET_ESR_DAEC): New macro.
        (SET_ESR_EAV): New macro.
        (GET_ESR_EDV): New macro.
        (SET_ESR_EDV): New macro.
        (GET_ESR_EDN): New macro.
        (SET_ESR_EDN): New macro.
        (GET_ESR): New macro.
        (SET_ESR): New macro.
        (SET_EPCR): New macro.
        (SET_EAR): New macro.
        (SET_EDR): New macro.
        (GET_ESFR): New macro.
        (SET_ESFR): New macro.
        * cpu.c,cpu.h,sem.c: Rebuild.

1999-10-26  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frvbf_check_non_excepting_load): Only set NESR, NECR, NEEAR
        if mach is frv.
        (clear_nesr_neear): Only execute if mach is frv.

1999-10-22  Dave Brolley  <brolley@cygnus.com>

        * sim-main.h (sim_cpu): Add pipeline.
        (CPU_PIPELINE): New macro.
        * mloop.in (_parallel_write_queued): Maintain pc in cpu during writes.
        (main loop): Maintain pc in cpu.
        * frv-sim.h (frv_queue_software_interrupt): New interface.
        (frv_queue_program_interrupt): New interface.
        (frv_queue_illegal_instruction_interrupt: New interface.
        (frv_queue_interrupt): New interface.
        (frv_detect_insn_access_interrupts): New interface.
        (frv_process_interrupts): New interface.
        (frv_program_interrupt): New interface.
        (frv_software_interrupt): New interface.
        (frv_program_or_software_interrupt): New interface.
        (FRV_PIPELINE): Moved from pipline.c.
        (frv_pipeline_reset): New interface.
        (frv_pipeline_add_insn): New interface.
        * interrupts.c (frv_queue_software_interrupt): New interface.
        (frv_queue_program_interrupt): New interface.
        (frv_queue_illegal_instruction_interrupt: New interface.
        (frv_queue_interrupt): New interface.
        (frv_detect_insn_access_interrupts): New interface.
        (frv_process_interrupts): New interface.
        (frv_program_interrupt): New interface.
        (frv_software_interrupt): New interface.
        (frv_program_or_software_interrupt): New interface.
        * frv.c: Use new interfaces.
        * pipeline.c: Use new interfaces.
        * traps.c: Use new interfaces.
        * memory.c: Use new interfaces.
        (frv_address_forbidden): No longer static.

1999-10-19  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frvbf_check_non_excepting_load): Set NESR.DAEC, NESR.REC and
        NESR.EC.
        * mloop.in (_parallel_write_queued): Handle CGEN_FN_PC_WRITE.
        * frv.c (frvbf_h_pc_set_handler): New function.
        * interrupts.c (frv_detect_data_interrupt): Removed.
        (address_forbidden): Removed.
        * frv-sim.h (frv_detect_data_interrupt): Removed.
        (NESR_MEM_ADDRESS_NOT_ALIGNED): New macro.
        (NESR_REGISTER_NOT_ALIGNED): New macro.
        (NESR_UQI_SIZE): New macro.
        (NESR_QI_SIZE): New macro.
        (NESR_UHI_SIZE): New macro.
        (NESR_HI_SIZE): New macro.
        (NESR_SI_SIZE): New macro.
        (NESR_DI_SIZE): New macro.
        (NESR_XI_SIZE): New macro.
        (GET_NESR_DAEC): New macro.
        (SET_NESR_DAEC): New macro.
        (GET_NESR_REC): New macro.
        (SET_NESR_REC): New macro.
        (GET_NESR_EC): New macro.
        (SET_NESR_EC): New macro.
        (frvbf_read_mem_QI): New function.
        (frvbf_read_mem_UQI): New function.
        (frvbf_read_mem_HI): New function.
        (frvbf_read_mem_UHI): New function.
        (frvbf_read_mem_SI): New function.
        (frvbf_read_mem_WI): New function.
        (frvbf_read_mem_DI): New function.
        (frvbf_read_mem_DF): New function.
        (frvbf_write_mem_QI): New function.
        (frvbf_write_mem_UQI): New function.
        (frvbf_write_mem_HI): New function.
        (frvbf_write_mem_UHI): New function.
        (frvbf_write_mem_SI): New function.
        (frvbf_write_mem_WI): New function.
        (frvbf_write_mem_DI): New function.
        (frvbf_write_mem_DF): New function.
        * Makefile.in (SIM_OBJS): Add memory.o.
        * cpu.c,cpu.h,sem.c: Rebuild.

1999-10-18  Dave Brolley  <brolley@cygnus.com>

        * sim-if.c (sim_open): Use a real fpu error function.
        * pipeline.c (frv_pipeline_add_insn): Don't add invalid insns.
        * mloop.in (_parallel_write_queued): Clear queue after writing.
        * interrupts.c (check_for_compound_interrupt): New function.
        (non_operating_interrupt): New function.
        * frv-sim.h (frvbf_h_gr_double_get_handler): New function.
        (frvbf_h_gr_double_set_handler): New function.
        (frvbf_h_fr_double_get_handler): New function.
        (frvbf_h_fr_double_set_handler): New function.
        (frvbf_h_cpr_double_get_handler): New function.
        (frvbf_h_cpr_double_set_handler): New function.
        (frv_interrupt_queue_element): New struct type.
        (frv_queue_program_interrupt): Now takes pc.
        (frv_queue_illegal_instruction_interrupt): Now takes pc.
        (frv_queue_interrupt): Now takes pc.
        (frv_program_interrupt): Now takes frv_interrupt_queue_element.
        (frv_software_interrupt): Now takes frv_interrupt_queue_element.
        (frvbf_division_exception): New function.
        (frvbf_fpu_error): New function.
        (frvbf_load_multiple_GR): New function.
        (frvbf_load_multiple_FR): New function.
        (frvbf_load_multiple_CPR): New function.
        * frv.c (frvbf_h_gr_double_get_handler): New function.
        (frvbf_h_gr_double_set_handler): New function.
        (frvbf_h_fr_double_get_handler): New function.
        (frvbf_h_fr_double_set_handler): New function.
        (frvbf_h_cpr_double_get_handler): New function.
        (frvbf_h_cpr_double_set_handler): New function.
        (frv_interrupt_queue_element): New struct type.
        (frv_queue_program_interrupt): Now takes pc.
        (frv_queue_illegal_instruction_interrupt): Now takes pc.
        (frv_queue_interrupt): Now takes pc.
        (frv_program_interrupt): Now takes frv_interrupt_queue_element.
        (frv_software_interrupt): Now takes frv_interrupt_queue_element.
        (frvbf_fpu_error): New function.
        (frvbf_load_multiple_GR): New function.
        (frvbf_load_multiple_FR): New function.
        (frvbf_load_multiple_CPR): New function.
        * traps.c (frvbf_division_exception): New function.
        * cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Rebuild.

1999-10-12  Dave Brolley  <brolley@cygnus.com>

        * mloop.in (new_vpc): New variable.
        (main loop): Call frv_detect_insn_access_interrupts. Call
        frv_detect_data_interrupts.
        * interrupts.c (access_queued_to): New function.
        (frv_detect_data_interrupts): New function.
        (frv_detect_insn_access_interrupts): New function.
        (frv_program_or_software_interrupt): Set PSR.S.
        * frv-sim.h (frv_detect_data_interrupts): New function.
        (frv_detect_insn_interrupts): New function.

1999-10-07  Dave Brolley  <brolley@cygnus.com>

        * frv-sim.h (frvbf_h_gr_hi_get_handler): New function.
        (frvbf_h_gr_hi_set_handler): New function.
        (frvbf_h_gr_lo_get_handler): New function.
        (frvbf_h_gr_lo.set_handler): New function.
        * frv.c (frvbf_h_gr_hi_get_handler): New function.
        (frvbf_h_gr_hi_set_handler): New function.
        (frvbf_h_gr_lo_get_handler): New function.
        (frvbf_h_gr_lo.set_handler): New function.
        (frvbf_model_fr500_u_integer): New function.
        * arch.h,cpu.h,cpu.c,decode.h,decode.c,model.c,sem.c: Rebuild.

1999-10-04  Dave Brolley  <brolley@cygnus.com>

        * traps.c: Use sim_engine_abort.
        * pipeline.c (frv_pipeline): Add field for insn major.
        (add_next_to_pipe): Return address of matching pipeline.
        (find_major_in_pipeline): New function.
        (check_insn_major_constraints: New function.
        (frv_pipeline_add_insn): Add checks for insn major constraints.
        * interrupts.c (frv_process_interrupts): Use sim_engine_abort.
        * frv.c (frvbf_h_spr_get_handler): No need to abort.

Thu Sep 30 18:10:25 1999  Dave Brolley  <brolley@cygnus.com>

        * pipeline.c: New file.
        * mloop.in (main loop): Call frv_pipeline_reset.
        Call frv_pipeline_add_insn.
        * frv-sim.h (frv_pipeline_reset): New function.
        (frv_pipeline_add_insn): New function.
        * Makefile.in (SIM_OBJS): Add pipeline.o

1999-09-29  Doug Evans  <devans@casey.cygnus.com>

        * sem.c: Rebuild.
        * traps.c (sim_engine_invalid_insn): New arg `vpc'.  Change type of
        result to SEM_PC.  Return vpc.

Wed Sep 29 16:01:52 1999  Dave Brolley  <brolley@cygnus.com>

        * interrupts.c (frv_interrupt_table): DATA_STORE_ERROR is imprecise.
        (frv_queue_interrupt): Don't detect identical interrupts here.

Wed Sep 29 14:49:52 1999  Dave Brolley  <brolley@cygnus.com>

        * interrupts.c: New file.
        * traps.c (sim_engine_invalid_insn): Return PC of next insn.
        (frv_software_interrupt): Moved to interrupts.c.
        (frv_itrap): New interface. Call frv_queue_software_interrupt.
        * mloop.in (@cpu@_parallel_write_init): set previous_vliw_pc.
        (@cpu@_perform_writeback): New function.
        (main loop): Call frv_process_interrupts.
        * frv-sim.h (frvbf_write_next_vliw_addr_to_PCSR): Removed.
        (frv_itrap): New interface.
        (frv_interrupt_class): New enumeration.
        (frv_interrupt_kind): New enumeration.
        (struct frv_interrupt): New struct type.
        (frv_interrupt_table): New table of interrupt information.
        (FRV_INTERRUPT_QUEUE_SIZE): New macro.
        (struct frv_interrupt_state): New struct type.
        (frv_interrupt_state): New global variable.
        (previous_vliw_pc): New global variable.
        (frv_queue_software_interrupt): New function.
        (frv_queue_program_interrupt): New function.
        (frv_queue_interrupt): New function.
        (frv_process_interrupts): New function.
        (frv_program_interrupt): New function.
        (frv_software_interrupt): New function.
        (frv_program_or_software_interrupt): New function.
        (frv_clear_interrupt_classes): New function.
        * frv.c (frvbf_write_next_vliw_addr_to_PCSR): Removed.
        * Makefile.in (SIM_OBJS): Add interrupts.o
        * sem.c: Rebuild.

1999-09-25  Doug Evans  <devans@casey.cygnus.com>

        * cpu.h,cpuall.h,decode.c,sem.c: Rebuild.

Tue Sep 21 17:16:47 1999  Dave Brolley  <brolley@cygnus.com>

        * mloop.in (main loop): Determine last insn from scache entry.
        * cpu.h: Rebuild.
        * cpuall.h: Rebuild.

Tue Sep 14 14:21:31 1999  Dave Brolley  <brolley@cygnus.com>

        * frv-sim.h (frvbf_write_next_vliw_addr_to_PCSR): New flag.
        (NECR_ELOS): Define as unshifted value.
        (NECR_NEN): Define as unshifted value.
        (NECR_VALID): Define as unshifted value.
        (SET_NESR): Rewite to use post-write queue.
        (SET_NESR_VALID): Rewite to operate on argument.
        (SET_NESR_EAV): Rewite to operate on argument.
        (SET_NESR_FR): Rewite to operate on argument.
        (CLEAR_NESR_FR): Rewite to operate on argument.
        (SET_NESR_DRN): Rewite to operate on argument.
        (SET_NESR_SIZE): Rewite to operate on argument.
        (SET_NESR_NEAN): Rewite to operate on argument.
        (SET_NEEAR): Rewite to use post-write queue.
        (SET_NE_FLAG): Rewite to use post-write queue.
        (CLEAR_NE_FLAG): Rewite to use post-write queue.
        * traps.c (frv_software_interrupt): Rewite to use post-write queue.
        (frv_rett): Rewite to use post-write queue.
        (next_available_nesr): Rewrite to use new macro interfaces.
        (next_valid_nesr): Ditto.
        (frvbf_check_non_excepting_load): Ditto.
        (frvbf_check_recovering_store): Ditto.
        (clear_nesr_neear): Ditto.
        (clear_ne_flags): Ditto.
        * mloop.in (main loop): Update PCSR with address of next VLIW insn
        when flag is set.
        * frv.c (frvbf_h_spr_get_handler): Shift register fields here now.
        (frvbf_store_multiple_GR): Rewite to use post-write queue.
        (frvbf_store_multiple_FRint): Rewite to use post-write queue.
        (frvbf_store_multiple_CPR): Rewite to use post-write queue.
        * Makefile.in (frv.o): Depend on cgen-par.h.

Fri Sep 10 17:03:15 1999  Dave Brolley  <brolley@cygnus.com>

        * frv-sim.h (frvbf_set_write_next_vliw_addr_to_LR): New function.
        (frvbf_write_next_vliw_addr_to_LR): New flag.
        * frv.c (frvbf_set_write_next_vliw_addr_to_LR): New function.
        * mloop.in: Only take the first branch in a VLIW insn. Set LR to the
        address of the next VLIW insn if flag is set.
        * cpu.h,decode.c,sem.c: Rebuild.

Tue Sep  7 13:44:23 1999  Dave Brolley  <brolley@cygnus.com>

        * mloop.in: Limit parallel insns to MAX_PARALLEL_INSNS.
        * sem.c: Rebuild.

1999-09-02  Doug Evans  <devans@casey.cygnus.com>

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

1999-09-01  Doug Evans  <devans@casey.cygnus.com>

        * decode.c: Rebuild.

Mon Aug 30 17:54:57 1999  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frv_rett): New function.
        * frv.c (frvbf_h_spr_get_handler): Handle bpsr.
        (frvbf_h_spr_set_handler): Handle bpsr.
        (frvbf_h_bpsr_get_handler): New function.
        (frvbf_h_bpsr_set_handler): New function.
        * frv-sim.h (frv_rett): New function.
        (frvbf_h_bpsr_get_handler): New function.
        (frvbf_h_bpsr_set_handler): New function.
        * mloop.in: Read actual packing bit.
        * cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Rebuild.

Tue Aug 31 16:04:37 1999  Dave Brolley  <brolley@cygnus.com>

        * traps.c (WANT_CPU): New macro.
        (WANT_CPU_FRVBF): New macro.
        (frvbf_check_recovering_store): Use registers for source and queue
        writes.
        * mloop.in: New main loop for parallel support.
        (@cpu@_parallel_write_init): New function.
        (@cpu@_parallel_write_queued): New function.
        * frv-sim.h (set_icc_for_shift_left): New interface.
        (set_icc_for_shift_right): New interface.
        (frvbf_check_recovering_store): New interface.
        * frv.c (set_icc_for_shift_left): Pass and return icc value.
        (set_icc_for_shift_right): Pass and return icc value.
        (frvbf_check_recovering_store): New interface.
        * Makefile.in (FRV_OBJS): Add cgen-par.o.
        (stamp-mloop): Add cgen parallel options.
        (stamp-arch): Remove with-profile option.
        (stamp-cpu): Add cgen parallel options.
        * arch.h,cpu.h,decode.c,decode.h,model.c,sem.c: Rebuild.

1999-08-28  Doug Evans  <devans@casey.cygnus.com>

        * cpu.h,decode.c,sem.c: Rebuild.

Wed Aug 25 12:25:04 1999  Dave Brolley  <brolley@cygnus.com>

        * arch.h,cpu.h,decode.h,model.c,sem.c: Rebuild.

Thu Aug 19 17:59:00 1999  Dave Brolley  <brolley@cygnus.com>

        * configure.in: fr500 now the default model.
        * configure: Regenerate.
        * frv.c: Change frv-1 to frv-gen.
        (frvbf_model_fr500_u_exec): New function.
        * Makefile.in (stamp-cpu): Use 'mach=frv,fr500' to build decoder.
        * mloop.in: Fix typos in comments.
        * arch.c,arch.h,cpu.h,cpuall.h,decode.h,model.c,sem.c: Rebuild.

1999-08-17  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,decode.h,model.c,sem.c: Rebuild.

1999-08-09  Doug Evans  <devans@casey.cygnus.com>

        * cpu.h,decode.c,decode.h,model.c,sem.c: Rebuild.

1999-08-04  Doug Evans  <devans@casey.cygnus.com>

        * cpu.h,cpuall.h,decode.c,model.c,sem.c: Rebuild.

Fri Jul 16 14:50:15 1999  Dave Brolley  <brolley@cygnus.com>

        * frv.c (frvbf_fetch_register): Use GDB register number macros.
        (frvbf_store_register): Use GDB register number macros.
        (frvbf_cut): New function.
        * frv-sim.h (GR_REGNUM_MAX): New macro.
        (FR_REGNUM_MAX): New macro.
        (PC_REGNUM): New macro.
        (LR_REGNUM): New macro.
        (frvbf_cut): New function.
        * cpu.h,decode.c,decode.h,model.c,sem.c: Regenerate.

1999-07-15  Stan Shebs  <shebs@andros.cygnus.com>

        * frv.c (frvbf_fetch_register): Add ability to get LR register,
        add default for unhandled registers.
        (frvbf_store_register): Add ability to set LR register.

1999-07-14  Stan Shebs  <shebs@andros.cygnus.com>

        * frv.c (frvbf_fetch_register, frvbf_store_register): Fill in.
        (decode_gdb_dr_regnum): Remove, not used.

1999-07-13  Michael Meissner  <meissner@cygnus.com>

        * Makefile.in (SIM_EXTRA_FLAGS): Incorporate @sim_trapdump@.

        * configure.in (--enable-sim-trapdump): New switch to make unknown
        traps dump the register contents, instead of doing the trap thing.
        * configure: Regenerate.

        * frv-sim.h (TRAP_BREAKPOINT): Define as 81, so it can be used.
        (TRAP_REGDUMP{1,2}): Define to provide register dumping support
        temporarily.

        * traps.h (toplevel): Include bfd.h, libiberity.h.
        (frv_itrap): Add support for --enable-sim-trapdump and traps 2,3
        dumping the registers.

Thu Jul  8 10:57:39 1999  Dave Brolley  <brolley@cygnus.com>

        * Makefile.in (SIM_EXTRA_LIBS): Removed. libm no longer needed.

Wed Jul  7 17:01:12 1999  Dave Brolley  <brolley@cygnus.com>

        * cpu.c,cpu.h,decode.c,model.c,sem.c: Rebuild.

Tue Jul  6 16:12:18 1999  Dave Brolley  <brolley@cygnus.com>

        * frv.c (frvbf_square_root_SF): Removed.
        (frvbf_square_root_DF): Removed.
        (frvbf_h_fr_double_get_handler): Removed.
        (frvbf_h_fr_double_set_handler): Removed.
        (frvbf_h_fr_int_get_handler): Removed.
        (frvbf_h_fr_int_set_handler): Removed.
        * frv-sim.h (frvbf_square_root_SF): Removed.
        (frvbf_square_root_DF): Removed.
        (frvbf_h_fr_double_get_handler): Removed.
        (frvbf_h_fr_double_set_handler): Removed.
        (frvbf_h_fr_int_get_handler): Removed.
        (frvbf_h_fr_int_set_handler): Removed.
        * decode.c,decode.h,model.c,sem.c: Rebuild.

1999-07-05  Doug Evans  <devans@casey.cygnus.com>

        * Makefile.in (SIM_OBJS): Add cgen-fpu.o, cgen-accfp.o.
        * cpu.c,cpu.h,decode.c,decode.h,model.c,sem.c: Rebuild.
        * sim-if.c (sim_open): Initialize fpu.
        * frv-sim.h (SETMEMSF,SETMEMDF): Delete.
        * frv.c (frvbf_store_multiple_FRint): Replace frvbf_h_fr_int_get
        with frvbf_h_fr_get.

Wed Jun 30 15:56:56 1999  Dave Brolley  <brolley@cygnus.com>

        * frv-sim.h (NESR_RANGE): New macro.
        (NO_NESR): New macro.
        (GET_NESR_VALID): New macro.
        (next_ne_index): Removed.
        * traps.c (next_available_nesr): New function.
        (next_valid_nesr): New function.
        (frvbf_check_non_excepting_load): Use next_available_nesr.
        (frvbf_check_recovering_store): Use next_available_nesr and
        next_valid_nesr.
        (clear_nesr_neear): Use next_available_nesr and next_valid_nesr.
        (frvbf_check_recovering_store): Only consider one matching register.
        * sem.c: Rebuild.

Tue Jun 29 16:54:32 1999  Dave Brolley  <brolley@cygnus.com>

        * frv.c (frvbf_square_root_SF): New function.
        (frvbf_square_root_DF): New function.
        (frvbf_h_fr_double_get_handler): New function.
        (frvbf_h_fr_double_set_handler): New function.
        * frv-sim.h (frvbf_square_root_SF): New function.
        (frvbf_square_root_DF): New function.
        (frvbf_h_fr_double_get_handler): New function.
        (frvbf_h_fr_double_set_handler): New function.
        * cpu.h,cpu.c,decode.c,decode.h,model.c,sem.c: Rebuild.

1999-06-28  Dave Brolley  <brolley@cygnus.com>

        * decode.c,decode.h,model.c,sem.c: Regenerate.

Thu Jun 24 17:26:32 1999  Dave Brolley  <brolley@cygnus.com>

        * Makefile.in (SIM_EXTRA_LIBS): Add -lm.
        * frv-sim.h (frvbf_h_fr_int_get_handler): New function.
        (frvbf_h_fr_int_set_handler): New function.
        (frvbf_store_multiple_FRint): New function.
        (frvbf_square_root_SF): New function.
        * frv.c (frvbf_h_fr_int_get_handler): New function.
        (frvbf_h_fr_int_set_handler): New function.
        (frvbf_store_multiple_FRint): New function.
        (frvbf_square_root_SF): New function.
        * cpu.h,cpu.c,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

1999-06-23  Doug Evans  <devans@casey.cygnus.com>

        * Makefile.in (stamp-mloop): Delete -fast -pbb -switch args
        to genmloop.sh.  Pass -scache instead.
        (mloop.o): Delete sem-switch.c dependency.
        (sem-switch.c): Delete rule.
        (stamp-cpu): Don't build sem-switch.c.
        * sem-switch.c: Delete.
        * mloop.in (xfull-exec-*): Fix call to execute.
        * tconfig.in (WITH_SCACHE_PBB): Define as 0.

        * cpu.h,decode.c,model.c,sem-switch.c,sem.c: Rebuild.

Tue Jun 22 16:23:57 1999  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,sem.c,sem-switch.c: Regenerate.

Mon Jun 21 17:34:10 1999  Dave Brolley  <brolley@cygnus.com>

        * mloop.in (execute): Force gr0 to zero before each insn.
        * cpu.h,cpu.c,decode.c,sem.c,sem-switch.c: Regenerate.

1999-06-18  Doug Evans  <devans@casey.cygnus.com>

        * cpu.h,decode.c,model.c,sem-switch.c,sem.c: Rebuild.

Fri Jun 18 17:49:23 1999  Dave Brolley  <brolley@cygnus.com>

        * frv.c (frvbf_h_gr_get_handler): New function.
        (frvbf_h_gr_set_handler): New function:
        (frvbf_store-multiple_GR): New function:
        (frvbf_store-multiple_FR): New function:
        (frvbf_store-multiple_CPR): New function:
        * frv-sim.h (frvbf_h_gr_get_handler): New function.
        (frvbf_h_gr_set_handler): New function:
        (frvbf_store-multiple_GR): New function:
        (frvbf_store-multiple_FR): New function:
        (frvbf_store-multiple_CPR): New function:
        * traps.c (frv_itrap): Implement proper syscalls interface.
        * cpu.h,cpu.c,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Fri Jun 18 14:36:23 1999  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frvbf_check_non_excepting_divide): New function.
        (frvbf_check_recovering_store): New function.
        (clear_nesr_neear): New function.
        (clear_ne_flags): New function.
        (frvbf_commit): New function.

        * frv-sim.h (frvbf_check_non_excepting_divide): New function.
        (frvbf_check_recovering_store): New function.
        (clear_nesr_neear): New function.
        (clear_ne_flags): New function.
        (frvbf_commit): New function.
        * cpu.h,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

1999-06-16  Dave Brolley  <brolley@cygnus.com>

        * frv.c (frvbf_h_spr_get_handler): Handle SPR_NECR.
        (frvbf_h_spr_set_handler): Handle SPR_NECR.
        * traps.c (next_ne_index): New variable.
        (frvbf_check_non_excepting_load): New function.
        * frv-sim.h (NECR_ELOS): New macro.
        (NECR_NEN): New macro.
        (NECR_VALID): New macro.
        (SET_NESR_VALID): New macro.
        (SET_NESR_EAV): New macro.
        (SET_NESR_FR): New macro.
        (CLEAR_NESR_FR): New macro.
        (SET_NESR_DRN): New macro.
        (SET_NESR_SIZE): New macro.
        (SET_NESR_NEAN): New macro.
        (SET_NEEAR): New macro.
        (GET_NE_FLAG): New macro.
        (SET_NE_FLAG): New macro.
        (CLEAR_NE_FLAG): New macro.
        (frvbf_check_non_excepting_load): New function:
        * cpu.h,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Wed Jun  9 18:12:49 1999  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,model.c,sem.c,sem-switch.c: Regenerate.

Tue Jun  8 18:13:51 1999  Dave Brolley  <brolley@cygnus.com>

        * frv.c (cr_logic): Correct andcr, nandcr, andncr and nandncr.
        * cpu.h,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Mon Jun  7 17:09:15 1999  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

1999-06-07  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Thu Jun  3 17:33:31 1999  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Wed Jun  2 17:50:21 1999  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Tue Jun  1 17:58:53 1999  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,model.c,sem.c,sem-switch.c: Regenerate.

Mon May 31 17:57:25 1999  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frv_software_interrupt): Pass current_cpu to
        frvbf_h_psr_esr_get.
        (frv_software_interrupt): Calculate the new PC based on TBR.
        * cpu.h,decode.c,model.c,sem.c,sem-switch.c: Regenerate.

1999-05-31  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,model.c,sem.c,sem-switch.c: Regenerate.

Thu May 27 17:42:00 1999  Dave Brolley  <brolley@cygnus.com>

        * frv-sim.h (frvbf_h_cccr_get_handler): New function.
        (frvbf_h_cccr_set_handler): New function.
        (frvbf_scan_result): New function.
        (frvbf_cr_logic): New function.
        * frv.c (frvbf_h_cccr_get_handler): New function.
        (frvbf_h_cccr_set_handler): New function.
        (frvbf_scan_result): New function.
        (frvbf_cr_logic): New function.
        (cr_ops,cr_result,cr_logic): New table.
        * cpu.h,decode.c,model.c,sem.c,sem-switch.c: Regenerate.

1999-05-25  Dave Brolley  <brolley@cygnus.com>

        * frv.c (frvbf_h_spr_get_handler): Add support for TBR and PSR.
        (frvbf_h_spr_set_handler): Add support for TBR and PSR.
        (frv_psr_get_handler): New function.
        (frv_psr_set_handler): New function.
        (frv_tbr_get_handler): New function.
        (frv_tbr_set_handler): New function.
        (frvbf_h_ccr_get_handler): Add support for fCC.
        (frvbf_h_ccr_set_handler): Add support for fCC.
        * frv-sim.h (frv_psr_get_handler): New function.
        (frv_psr_set_handler): New function.
        (frv_tbr_get_handler): New function.
        (frv_tbr_set_handler): New function.
        * traps.c (frv_software_interrupt): Implement.
        * cpu.h,cpu.c,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Thu May 20 16:39:27 1999  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,cpu.c,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

1999-05-18  Dave Brolley  <brolley@cygnus.com>

        * frv.c: (frvbf_set_icc_for_shift_left): New function.
        (frvbf_set_icc_for_shift_right): New function.
        * frv-sim.h (frvbf_set_icc_for_shift_left): New function.
        (frvbf_set_icc_for_shift_right): New function.
        (SETMEMSF): New Macro.
        (SETMEMDF): New Macro.
        * cpu.h,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Thu May 13 17:14:49 1999  Dave Brolley  <brolley@cygnus.com>

        * frv.c (frvbf_h_ccr_get_handler): New function.
        (frvbf_h_ccr_set_handler): New function.
        * cpu.h,cpu.c,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Tue May 11 16:13:15 1999  Dave Brolley  <brolley@cygnus.com>

        * frv-sim.h (frvbf_h_spr_get_handler,frvbf_h_spr_set_handler,
        frvbf_h_isr_get_handler, frvbf_h_isr_set_handler): New functions.
        * frv.c: Likewise.
        * cpu.h,cpu.c,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

1999-05-10  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,cpu.c,decode.c,model.c,sem.c,sem-switch.c: Regenerate.

Thu May  6 16:48:21 1999  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,sem.c,sem-switch.c: Regenerate.
        * frv-sim.h (TRAP_SYSCALL): Define as 0x80.

Wed May  5 11:52:24 1999  Dave Brolley  <brolley@cygnus.com>

        * traps.c (frv_software_interrupt): New function.
        (frv_itrap): New function.
        * frv-sim.h (TRAP_SYSCALL): define as 0.
        * cpu.h,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Mon May  3 13:49:21 1999  Dave Brolley  <brolley@cygnus.com>

        * cpu.h,decode.c,decode.h,model.c,sem.c,sem-switch.c: Regenerate.

Thu Apr 29 17:37:06 1999  Dave Brolley  <brolley@cygnus.com>

        * Directory created.