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2001-05-20  Stephane Carrez  

        * Makefile.in (M68HC11_OBJS): Add m68hc12int.o.

        (m68hc12int.c): Generate using gencode -m6812.

        (m68hc11int.c): Likewise with -m6811.

        * gencode.c (m6811_opcode_patterns): New patterns for 68HC12.

        (m6811_page1_opcodes): Remove duplicate entries.

        (m6811_page2_opcodes): Likewise.

        (m6811_page3_opcodes): Likewise.

        (m6811_page4_opcodes): Likewise.

        (m6812_page1_opcodes): New table for 68HC12 instructions.

        (m6812_page2_opcodes): Likewise.

        (gen_fetch_operands): New modes [] and &[] for 68HC12 operands.

        (gen_save_result): Likewise.

        (gen_interpreter_for_table): Handle 68HC11 and 68HC12 opcodes.

        (cmp_opcode): New function for opcode comparision.

        (prepare_table): Sort the opcodes.

        (gen_interpreter): Prepare all the tables and generate either

        a 68HC11 or a 68HC12 simulator.

        (main): New options -m6811 and -m6812.

        * m68hc11_sim.c (cpu_single_step): Use pointer to cpu interpretor.

        (cpu_special): Simulation of some 68HC12 instructions.

        (cpu_exg): New function.

        (cpu_dbcc): Likewise.

        (cpu_fetch_relbranch16): Likewise.

        (cpu_push_all): Push according to 68HC11 or 68HC12.

        (cpu_move16): Likewise.

        (cpu_move8): Likewise.

        (cpu_get_indexed_operand16): Likewise.

        (cpu_get_indexed_operand8): Likewise.

        (cpu_get_indexed_operand_addr): Likewise.

        (cpu_set_reg, cpu_set_dst_reg, cpu_get_src_reg, cpu_get_reg): Likewise.

        (cpu_reset): Setup INIT register according to architecture.

        * sim-main.h (M6811_Special): Add 68HC12 specific instructions.

        (_sim_cpu): Keep track of the cpu being simulated.

        (cpu_get_tmp3, cpu_get_tmp2, cpu_set_tmp3, cpu_set_tmp2): New.

        (cpu_m68hc11_push_uintxx): Rename of cpu_push_uintxx.

        (cpu_m68hc11_pop_uint8): Likewise.

        (cpu_m68hc12_push_uintxx): New functions for 68HC12.

        (cpu_m68hc12_pop_uintxx): Likewise.

        (cpu_exg, cpu_dbcc, cpu_move8, cpu_move16): Likewise,

        (cpu_fetch_relbranch16): Likewise.

        (cpu_interp_m6811): Rename of cpu_interp.

        (cpu_interp_m6812): New function.

        * interp.c (free_state): New function.

        (dev_list_68hc12): New table.

        (sim_board_reset): Reset depending on the cpu (HC11 or HC12).

        (sim_hw_configure): New function.

        (sim_prepare_for_program): New function.

        (sim_open): Use above new functions.

        (sim_close): Call free_state().

        (sim_info): Print info according to cpu.

        (sim_create_inferior): Use sim_prepare_for_program.

        (sim_do_command): Configure the hardware after a change of the

        architecture.

2001-05-20  Stephane Carrez  

        * dv-m68hc11sio.c (m68hc11sio_tx_poll): Always check for

        pending interrupts.

        * interrupts.c (interrupts_process): Keep track of the last number

        of masked insn cycles.

        (interrupts_initialize): Clear last number of masked insn cycles.

        (interrupts_info): Report them.

        (interrupts_update_pending): Compute clear and set masks of

        interrupts and clear the interrupt bits before setting them

        (due to SCI interrupt sharing).

        * interrupts.h (struct interrupts): New members last_mask_cycles

        and xirq_last_mask_cycles.

2000-11-26  Stephane Carrez  

        * dv-m68hc11.c (m68hc11cpu_io_read_buffer): Use attach_size

        instead of a hard-coded value.

        (m68hc11cpu_io_write_buffer): Likewise.

        (dv_m68hc11_descriptor): Define a 68hc12 device.

        * dv-m68hc11eepr.c (dv_m68hc11eepr_descriptor): Likewise.

        * dv-m68hc11tim.c (dv_m68hc11tim_descriptor): Likewise.

        * dv-m68hc11spi.c (dv_m68hc11spi_descriptor): Likewise.

        * dv-m68hc11sio.c (dv_m68hc11sio_descriptor): Likewise.

2000-11-22  Stephane Carrez  

        * dv-m68hc11.c (attach_m68hc11_regs): Register a delete handler.

        (m68hc11cpu_delete): Delete handler to detach the address space.

2000-11-24  Stephane Carrez  

        * dv-m68hc11eepr.c (attach_m68hc11eepr_regs): Use hw_malloc.

        * dv-nvram.c (attach_nvram_regs): Use hw_free and hw_malloc

        instead of free and malloc.

2000-09-11  Stephane Carrez  

        * Makefile.in: Was missing from initial patch.

2000-09-10  Stephane Carrez  

        * interp.c (sim_store_register): Remove soft register hack.

        (sim_fetch_register): Likewise.

        (sim_create_inferior): Likewise.

        * sim-main.h: Likewise.

2000-09-10  Stephane Carrez  

        * interrupts.c (interrupts_update_pending): Clear the mask of

        pending interrupts here.

        (interrupts_get_current): Don't clear the mask of pending interrupts.

2000-09-10  Stephane Carrez  

        * sim-main.h: Define cycle_to_string.

        * dv-m68hc11tim.c (cycle_to_string): New function to translate

        the cpu cycle into some formatted time string.

        (m68hc11tim_print_timer): Use it.

        * dv-m68hc11sio.c (m68hc11sio_info): Use cycle_to_string.

        * dv-m68hc11spi.c (m68hc11spi_info): Likewise.

        * interrupts.c (interrupts_info): Likewise.

        * m68hc11_sim.c (cpu_info): Likewise.

2000-09-06  Stephane Carrez  

        * dv-m68hc11tim.c (m68hc11tim_timer_event): Compute the overflow

        interrupt and compare events accurately.  Take into account the

        pending ticks not processed by the simulator yet (introduced a shift).

        (m68hc11_port_event): Reset the timer interrupt delays.

        (m68hc11tim_io_read_buffer): Be able to read several bytes.

        (m68hc11tim_io_write_buffer): Likewise for write.

        (m68hc11tim_io_write_buffer): Recompute the timer overflow interrupt.

2000-09-06  Stephane Carrez  

        * dv-m68hc11spi.c (m68hc11spi_io_read_buffer): Clear the interrupts.

        (m68hc11spi_io_write_buffer): Likewise and fix the spi frame.

        (m68hc11spi_info): Clarify the status report

        of the SPI when a byte is being sent.

        (m68hc11spi_clock): Fix the spi send frame.

2000-08-11  Stephane Carrez  

        * sim-main.h (m68hc11_map_level): Define level of address mappings.

        * dv-m68hc11eepr.c (struct m68hc11eepr ): New flag to indicate

        whether the eeprom is currently mapped or not.

        (m68hc11eepr_port_event): Use the flag to see if we must unmap

        or map the eeprom.  Update the flag to reflect the current state.

        Use M6811_EEPROM_LEVEL when mapping the eeprom.

        (m68hc11eepr_finish): Remove overlap hack.

        (attach_m68hc11eepr_regs): Use M6811_IO_LEVEL when mapping the

        config and control registers.

        * dv-m68hc11.c (m68hc11cpu_finish): Remove overlap hack.

        (attach_m68hc11_regs): Use M6811_IO_LEVEL.

        (m68hc11cpu_io_write): Likewise when unmapping and re-mapping.

        * dv-m68hc11spi.c (m68hc11spi_finish): Likewise.

        (attach_m68hc11spi_regs): Likewise.

        * dv-m68hc11tim.c (m68hc11tim_finish): Likewise.

        (attach_m68hc11tim_regs): Likewise.

        * dv-m68hc11sio.c (m68hc11sio_finish): Likewise.

        (attach_m68hc11sio_regs): Likewise.

        * interp.c (sim_open): Likewise.

        * dv-nvram.c (attach_nvram_regs): Likewise.

Thu Jul 27 21:27:25 2000  Andrew Cagney  

        * configure, config.in: Regenerate.

2000-06-25  Stephane Carrez  

        * Makefile.in (SIM_RUN_OBJS): Define to use nrun.c

        * dv-m68hc11.c (m68hc11cpu_finish): Register detach address callback.

        (dv_m6811_detach_address_callback): New function to detach a

        device from an address space.

        * dv-m68hc11eepr.c (m68hc11eepr_port_event): Initialize

        config register according to --cpu-config option.

        * sim-main.h (_sim_cpu): Add cpu_config member.

        * interp.c (sim_open): Delete specific simulator options.

        * m68hc11_sim.c (cpu_option_handler): New options

        --emulos and -cpu-config  to configure the simulator.

        (cpu_initialize): Initialize cpu_config member.

2000-06-24  Stephane Carrez  

        * emulos.c: Fix indentation and comments.

        * gencode.c: Likewise.

        * dv-m68hc11tim.c (m68hc11tim_timer_event): Handle COMPARE_EVENT.

        (m68hc11tim_io_write_buffer): Write compare registers and

        setup compare event.

        * interp.c: Remove unused global variables.

        * interrupts.c (idefs): New compare interrupts.

        Fix indentation and comments.

        * interrupts.h: Likewise.

2000-06-18  Stephane Carrez  

        * dv-m68hc11sio.c: Fix indentation and comments.

        Remove INT_PORT.

        * dv-m68hc11.c: Fix indentation and comments.

        (m68hc11cpu_port_event): Move initialization of M6811_HPRIO from here.

        * m68hc11_sim.c (cpu_reset): To here.

        * dv-m68hc11eepr.c: Fix indentation and comments.

2000-06-17  Stephane Carrez  

        * dv-nvram.c: New file, rename from dv-pram.c.

        * dv-pram.c: Delete file.

        * sim-main.h: Incorporate m68hc11_sim.h.

        * m68hc11_sim.h: Delete file.

        * configure.in: Rename pram into nvram.

        * interp.c (sim_open): Likewise in creation of device tree.

2000-05-31  Stephane Carrez  

        * interp.c (sim_open): Create the SPI device.

        * dv-m68hc11spi.c: New file for SPI device simulation.

        * configure.in (hw_extra_devices): Add SPI device.

2000-05-28  Stephane Carrez  

        * interrupts.c (interrupts_initialize): Clear XIRQ accounting.

        (interrupts_process): Separate IRQ and XIRQ accounting.

        (interrupts_info): Report XIRQ accounting.

        * interrupts.h (struct interrupts): Added accounting for XIRQ.

2000-04-16  Stephane Carrez  

        * dv-pram.c (attach_pram_regs): Fix the 'save-modified' mode.

        * m68hc11_sim.h (_sim_cpu): Allow configuration of cpu mode.

        * dv-m68hc11.c (attach_m68hc11_regs): Get the cpu MODA,MODB

        configuration from the 'mode' device tree property.

        (m68hc11cpu_port_event): Reset M6811_HPRIO to the cpu MODA, MODB

        configuration.

2000-02-24  Stephane Carrez  

        * sim-main.h: Remove WITH_TARGET_* defines.

        * Makefile.in (SIM_EXTRA_CFLAGS): Specify the WITH_TARGET_* flags.

2000-02-08  Stephane Carrez  

        * dv-m68hc11sio.c (m68hc11sio_port_event): Setup the SCI to

        1200 baud when cpu is in bootstrap mode.

        * dv-m68hc11tim.c (m68hc11tim_io_write_buffer): Be able to

        write in the TCTN timer register.

        * dv-m68hc11sio.c (m68hc11sio_io_write_buffer): Divide cpu clock

        by 4 to obtain the E clock frequency.

        (sccr2_desc): Use M6811_TIE for TIE bit.

        (m68hc11sio_info): Fix baud rate report.

        * dv-m68hc11tim.c (to_realtime): Likewise.

        * interp.c (sim_open): When building device tree, only provide

        devices that do not exist yet.

        * emulos.c: Fix compilation pb under Windows.

        * dv-m68hc11.c (attach_m68hc11_regs): Get the clock frequency

        from the 'clock' property.

2000-01-02  Stephane Carrez  

        * m68hc11_sim.h (*_REGNUM): Define.

        (_sim_cpu): New member cpu_page0_reg table.

        * interp.c (sim_create_inferior): Fill the cpu_page0_reg table with

        addresses of soft registers in .page0.

        (sim_fetch_register, sim_store_register): Use cpu_page0_reg table

        to get/set soft registers.

1999-12-31  Stephane Carrez  

        * dv-m68hc11.c (m68hc11cpu_io_write_buffer): Clear byte to avoid

        returning random values.

1999-12-17  Stephane Carrez  

        * gencode.c: Fix "subb N,x" that used a instead of b.

1999-09-09  Stephane Carrez  

        * gencode.c: Fixed sbc8 and adc8 when there was a initial carry.

1999-09-01  Stephane Carrez  

        * sim-main.h (SIM_HANDLES_LMA): Define to enable loading using lma.

1999-08-14  Stephane Carrez  

        * dv-m68hc11.c (attach_m68hc11_regs): Save the size of the

        register region in the m68hc11cpu struct.

        (m68hc11cpu_io_write): When the IO mapping addres changes,

        detach the register region and re-attach it at the new address.

        (m68hc11cpu_io_read_buffer): Renamed base_address into

        attach_address.

        (m68hc11cpu_io_write_buffer): Likewise. Pass the hw pointer

        to m68hc11cpu_io_write.

1999-08-13  Stephane Carrez  

        * gencode.c: For sbc8, check the carry and increment the source

        before trying to set the carry for the result.

1999-05-24  John S. Kallal 

        * interp.c (sim_get_info): Don't crash if the command line is 0.

        Define prototype for sim_get_info() and init_system().

        (sim_info): Correct call to sim_get_info().

1999-05-16  Stephane Carrez  

        * configure.in: Recognize m6811-*-*.

        * configure: Regenerate.

        * m68hc11_sim.h (cpu_ccr_update_add8, cpu_ccr_update_add16,

        cpu_ccr_update_sub8, cpu_ccr_update_sub16):

        Correct the computation of carry of 8 and 16-bits add and subtract.

        * gencode.c: Use cpu_ccr_update_sub8 for subtraction (carry and

        overflow set in a different manner than add).

1999-05-14  Stephane Carrez  

        * dv-m68hc11.c (dv_m6811_attach_address_callback): Removed a

        trace message.

        * interp.c (sim_open, sim_create_inferior): Initialize the

        cpu_elf_start from the ELF header.

        * m68hc11_sim.c (cpu_initialize): Clear the new data members.

        (cpu_restart): Use cpu_elf_start as the starting address when

        the flag is set.

        (cpu_special): When cpu_use_elf_start is set, the WAI instruction

        exits the simulator (exit status is in D).

        * m68hc11_sim.h (_sim_cpu): Added members cpu_use_elf_start and

        cpu_elf_star to start execution at address specified in ELF file.

1999-05-02  Stephane Carrez  

        * Makefile.in, config.in, configure, configure.in: New files.

        * gencode.c: New file, generation of 68HC11 interpreter.

        * m68hc11_sim.h, m68hc11_sim.c: New files, specific operations

        for interpreter.

        * interrupts.c, interrupts.h: New files, management of interrupts.

        * interp.c, sim-main.h,

        * dv-m68hc11.c, dv-m68hc11eepr.c, dv-m68hc11sio.c,

        dv-m68hc11tim.c, dv-pram.c: New files representing devices for

        68HC11 (dv-pram.c is generic and could probably migrate to common).

        * emulos.c: New file, basic emulation of some os.