sim/m68hc11/ChangeLog

   1 2002-08-13  Stephane Carrez  <stcarrez@nerim.fr>
   2
   3         * dv-m68hc11eepr.c (struct m68hc11eepr ): Use const char* for filename.
   4
   5 2002-08-13  Marko Kohtala  <marko.kohtala@luukku.com>
   6
   7         * interp.c (sim_prepare_for_program): Look up the image for the
   8         reset vector and set cpu_use_elf_start to 1 if not found.
   9         (sim_open): Do not set cpu_use_elf_start.
  10
  11 2002-08-13  Marko Kohtala  <marko.kohtala@luukku.com>
  12
  13         * interp.c (sim_hw_configure): Return 1 for success.
  14         (sim_prepare_for_program): Use the sim_hw_configure exit code to
  15         return SIM_RC_FAIL.
  16
  17 2002-08-13  Stephane Carrez  <stcarrez@nerim.fr>
  18
  19         * dv-m68hc11.c (m68hc11cpu_io_read_buffer): Translate memory
  20         bank window to some virtual address to read from extended memory.
  21         (m68hc11cpu_io_write_buffer): Likewise for writing.
  22         (attach_m68hc11_regs): When use_bank property is defined, attach
  23         to the 68HC12 16K memory bank window.
  24         * interp.c (sim_hw_configure): Create memory region for banked
  25         memory.
  26
  27 2002-08-13  Stephane Carrez  <Stephane.Carrez@nerim.fr>
  28
  29         * interp.c (sim_hw_configure): Connect port-X to cpu-write-port.
  30         * dv-m68hc11.c (m68hc11cpu_ports): Add cpu-write-port input.
  31         (m68hc11cpu_port_event): Handle CPU_WRITE_PORT event.
  32
  33 2002-08-13  Marko Kohtala  <marko.kohtala@luukku.com>
  34
  35         * dv-m68hc11.c (m68hc11cpu_io_write): Fix to update IO mapping
  36         when IO mapping changed, not when internal RAM mapping is changed.
  37
  38 2002-08-13  Stephane Carrez  <stcarrez@nerim.fr>
  39
  40         * m68hc11_sim.c (cpu_special): Handle call and rtc instructions.
  41         * sim-main.h (M6812_CALL_INDIRECT): Add to enum.
  42         (m6811_regs): Add page register.
  43         (cpu_set_page, cpu_get_page): New macros.
  44         (phys_to_virt): New function.
  45         (cpu_get_indexed_operand_addr, cpu_return): Declare.
  46         * gencode.c: Identify indirect addressing mode for call and fix daa.
  47         (gen_function_entry): New param to tell if src8/dst8 locals are
  48         necessary.
  49         (gen_interpreter): Use it to avoid generation of unused variables.
  50         * interp.c (sim_fetch_register): Allow to read page register; page
  51         register, A, B and CCR are only 1 byte wide.
  52         (sim_store_register): Likewise for writing.
  53
  54 2002-06-16  Andrew Cagney  <ac131313@redhat.com>
  55
  56         * configure: Regenerated to track ../common/aclocal.m4 changes.
  57
  58 2002-06-09  Andrew Cagney  <cagney@redhat.com>
  59
  60         * Makefile.in (INCLUDE): Update path to callback.h.
  61         * sim-main.h: Include "gdb/callback.h" and "gdb/remote-sim.h".
  62
  63 2002-03-07  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
  64
  65         * m68hc11_sim.c (cpu_move8): Call sim_engine_abort in default case.
  66         (cpu_move16): Likewise.
  67         (sim_memory_error): Use sim_io_printf.
  68         (cpu_option_handler): Fix compilation warning.
  69         * interp.c (sim_hw_configure): Fix compilation warning;
  70         remove m68hc12sio@2 device.
  71         (sim_open): Likewise.
  72         * dv-m68hc11tim.c (m68hc11tim_port_event): Fix clear of TFLG2
  73         flags when reset.
  74         (cycle_to_string): Improve convertion of cpu cycle number.
  75         (m68hc11tim_info): Print info about PACNT.
  76         (m68hc11tim_io_write_buffer): Fix clearing of TFLG2; handle
  77         TCTL1 and TCTL2 registers.
  78         * dv-m68hc11.c (m68hc11_info): Print 6811 current running mode.
  79
  80 2002-03-07  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
  81
  82         * interp.c (sim_hw_configure): Save the HW cpu pointer in the
  83         cpu struct.
  84         (sim_hw_configure): Connect the capture input/output events.
  85         * sim-main.h (_sim_cpu): New member hw_cpu.
  86         (m68hc11cpu_set_oscillator): Declare.
  87         (m68hc11cpu_clear_oscillator): Declare.
  88         (m68hc11cpu_set_port): Declare.
  89         * dv-m68hc11.c (m68hc11_options): New for oscillator commands.
  90         (m68hc11cpu_ports): New input ports and output ports to reflect
  91         the HC11 IOs.
  92         (m68hc11_delete): Cleanup any running oscillator.
  93         (attach_m68hc11_regs): Create the input oscillators.
  94         (make_oscillator): New function.
  95         (find_oscillator): New function.
  96         (oscillator_handler): New function.
  97         (reset_oscillators): New function.
  98         (m68hc11cpu_port_event): Handle the new input ports.
  99         (m68hc11cpu_set_oscillator): New function.
 100         (m68hc11cpu_clear_oscillator): New function.
 101         (get_frequency): New function.
 102         (m68hc11_option_handler): New function.
 103         (m68hc11cpu_set_port): New function.
 104         (m68hc11cpu_io_write): Post the port output events.
 105         * dv-m68hc11spi.c (set_bit_port): Use m68hc11cpu_set_port to set
 106         the output port value.
 107         * dv-m68hc11tim.c (m68hc11tim_port_event): Handle CAPTURE event
 108         by latching the TCNT value in the register.
 109
 110 2002-03-07  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 111
 112         * sim-main.h (cpu_frame, cpu_frame_list): Remove.
 113         (cpu_frame_reg, cpu_print_frame): Remove.
 114         (cpu_m68hc11_push_uint8, cpu_m68hc11_pop_uint8): Cleanup.
 115         (cpu_m68hc11_push_uint16, cpu_m68hc11_pop_uint16): Likewise.
 116         (cpu_m68hc12_push_uint8, cpu_m68hc12_push_uint16): Likewise.
 117         (cpu_m68hc12_pop_uint8, cpu_m68hc12_pop_uint16): Likewise.
 118         * m68hc11_sim.c (cpu_find_frame): Remove.
 119         (cpu_create_frame_list): Remove.
 120         (cpu_remove_frame_list, cpu_create_frame, cpu_free_frame): Remove.
 121         (cpu_frame_reg, cpu_print_frame, cpu_update_frame): Remove.
 122         (cpu_call): Cleanup to remove #if HAVE_FRAME and calls to the above.
 123         (cpu_update_frame): Likewise.
 124         (cpu_return): Likewise.
 125         (cpu_reset): Likewise.
 126         (cpu_initialize): Likewise.
 127         * interp.c (sim_do_command): Remove call to cpu_print_frame.
 128
 129 2002-03-07  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 130
 131         * interrupts.c (interrupts_reset): New function, setup interrupt
 132         vector address according to cpu mode.
 133         (interrupts_initialize): Move reset portion to the above.
 134         (interrupt_names): New table to give a name to interrupts.
 135         (idefs): Handle pulse accumulator interrupts.
 136         (interrupts_info): Print the interrupt history.
 137         (interrupt_option_handler): New function.
 138         (interrupt_options): New table of options.
 139         (interrupts_update_pending): Keep track of when interrupts are
 140         raised and implement breakpoint-on-raise-interrupt.
 141         (interrupts_process): Keep track of when interrupts are taken
 142         and implement breakpoint-on-interrupt.
 143         * interrupts.h (struct interrupt_history): Define.
 144         (struct interrupt): Keep track of the interrupt history.
 145         (interrupts_reset): Declare.
 146         (interrupts_initialize): Update prototype.
 147         * m68hc11_sim.c (cpu_reset): Reset interrupts.
 148         (cpu_initialize): Cleanup.
 149
 150 2001-07-28  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 151
 152         * dv-m68hc11eepr.c (m68hc11eepr_info): Fix print of current write
 153         address.
 154         (m68hc11eepr_port_event): Fix detach/attach logic.
 155
 156 2001-07-22  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 157
 158         * Makefile.in (SIM_OBJS): Remove sim-resume.o
 159         * interp.c (sim_resume): New function from sim-resume.c, install
 160         the stepping event after having processed the pending ticks.
 161         (has_stepped): Likewise.
 162         (sim_info): Produce an output only if verbose or STATE_VERBOSE_P.
 163
 164 2001-07-10  Andrew Cagney  <ac131313@redhat.com>
 165
 166         * Makefile.in (gencode): Provide explicit path to gencode.c.
 167
 168 2001-05-20  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 169
 170         * Makefile.in (M68HC11_OBJS): Add m68hc12int.o.
 171         (m68hc12int.c): Generate using gencode -m6812.
 172         (m68hc11int.c): Likewise with -m6811.
 173
 174         * gencode.c (m6811_opcode_patterns): New patterns for 68HC12.
 175         (m6811_page1_opcodes): Remove duplicate entries.
 176         (m6811_page2_opcodes): Likewise.
 177         (m6811_page3_opcodes): Likewise.
 178         (m6811_page4_opcodes): Likewise.
 179         (m6812_page1_opcodes): New table for 68HC12 instructions.
 180         (m6812_page2_opcodes): Likewise.
 181         (gen_fetch_operands): New modes [] and &[] for 68HC12 operands.
 182         (gen_save_result): Likewise.
 183         (gen_interpreter_for_table): Handle 68HC11 and 68HC12 opcodes.
 184         (cmp_opcode): New function for opcode comparision.
 185         (prepare_table): Sort the opcodes.
 186         (gen_interpreter): Prepare all the tables and generate either
 187         a 68HC11 or a 68HC12 simulator.
 188         (main): New options -m6811 and -m6812.
 189
 190         * m68hc11_sim.c (cpu_single_step): Use pointer to cpu interpretor.
 191         (cpu_special): Simulation of some 68HC12 instructions.
 192         (cpu_exg): New function.
 193         (cpu_dbcc): Likewise.
 194         (cpu_fetch_relbranch16): Likewise.
 195         (cpu_push_all): Push according to 68HC11 or 68HC12.
 196         (cpu_move16): Likewise.
 197         (cpu_move8): Likewise.
 198         (cpu_get_indexed_operand16): Likewise.
 199         (cpu_get_indexed_operand8): Likewise.
 200         (cpu_get_indexed_operand_addr): Likewise.
 201         (cpu_set_reg, cpu_set_dst_reg, cpu_get_src_reg, cpu_get_reg): Likewise.
 202         (cpu_reset): Setup INIT register according to architecture.
 203
 204         * sim-main.h (M6811_Special): Add 68HC12 specific instructions.
 205         (_sim_cpu): Keep track of the cpu being simulated.
 206         (cpu_get_tmp3, cpu_get_tmp2, cpu_set_tmp3, cpu_set_tmp2): New.
 207         (cpu_m68hc11_push_uintxx): Rename of cpu_push_uintxx.
 208         (cpu_m68hc11_pop_uint8): Likewise.
 209         (cpu_m68hc12_push_uintxx): New functions for 68HC12.
 210         (cpu_m68hc12_pop_uintxx): Likewise.
 211         (cpu_exg, cpu_dbcc, cpu_move8, cpu_move16): Likewise,
 212         (cpu_fetch_relbranch16): Likewise.
 213         (cpu_interp_m6811): Rename of cpu_interp.
 214         (cpu_interp_m6812): New function.
 215         * interp.c (free_state): New function.
 216         (dev_list_68hc12): New table.
 217         (sim_board_reset): Reset depending on the cpu (HC11 or HC12).
 218         (sim_hw_configure): New function.
 219         (sim_prepare_for_program): New function.
 220         (sim_open): Use above new functions.
 221         (sim_close): Call free_state().
 222         (sim_info): Print info according to cpu.
 223         (sim_create_inferior): Use sim_prepare_for_program.
 224         (sim_do_command): Configure the hardware after a change of the
 225         architecture.
 226
 227 2001-05-20  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 228
 229         * dv-m68hc11sio.c (m68hc11sio_tx_poll): Always check for
 230         pending interrupts.
 231         * interrupts.c (interrupts_process): Keep track of the last number
 232         of masked insn cycles.
 233         (interrupts_initialize): Clear last number of masked insn cycles.
 234         (interrupts_info): Report them.
 235         (interrupts_update_pending): Compute clear and set masks of
 236         interrupts and clear the interrupt bits before setting them
 237         (due to SCI interrupt sharing).
 238         * interrupts.h (struct interrupts): New members last_mask_cycles
 239         and xirq_last_mask_cycles.
 240
 241 2000-11-26  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 242
 243         * dv-m68hc11.c (m68hc11cpu_io_read_buffer): Use attach_size
 244         instead of a hard-coded value.
 245         (m68hc11cpu_io_write_buffer): Likewise.
 246         (dv_m68hc11_descriptor): Define a 68hc12 device.
 247         * dv-m68hc11eepr.c (dv_m68hc11eepr_descriptor): Likewise.
 248         * dv-m68hc11tim.c (dv_m68hc11tim_descriptor): Likewise.
 249         * dv-m68hc11spi.c (dv_m68hc11spi_descriptor): Likewise.
 250         * dv-m68hc11sio.c (dv_m68hc11sio_descriptor): Likewise.
 251
 252 2000-11-22  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 253
 254         * dv-m68hc11.c (attach_m68hc11_regs): Register a delete handler.
 255         (m68hc11cpu_delete): Delete handler to detach the address space.
 256
 257 2000-11-24  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 258
 259         * dv-m68hc11eepr.c (attach_m68hc11eepr_regs): Use hw_malloc.
 260         * dv-nvram.c (attach_nvram_regs): Use hw_free and hw_malloc
 261         instead of free and malloc.
 262
 263 2000-09-11  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 264
 265         * Makefile.in: Was missing from initial patch.
 266
 267 2000-09-10  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 268
 269         * interp.c (sim_store_register): Remove soft register hack.
 270         (sim_fetch_register): Likewise.
 271         (sim_create_inferior): Likewise.
 272         * sim-main.h: Likewise.
 273
 274 2000-09-10  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 275
 276         * interrupts.c (interrupts_update_pending): Clear the mask of
 277         pending interrupts here.
 278         (interrupts_get_current): Don't clear the mask of pending interrupts.
 279
 280 2000-09-10  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 281
 282         * sim-main.h: Define cycle_to_string.
 283         * dv-m68hc11tim.c (cycle_to_string): New function to translate
 284         the cpu cycle into some formatted time string.
 285         (m68hc11tim_print_timer): Use it.
 286         * dv-m68hc11sio.c (m68hc11sio_info): Use cycle_to_string.
 287         * dv-m68hc11spi.c (m68hc11spi_info): Likewise.
 288         * interrupts.c (interrupts_info): Likewise.
 289         * m68hc11_sim.c (cpu_info): Likewise.
 290
 291 2000-09-06  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 292
 293         * dv-m68hc11tim.c (m68hc11tim_timer_event): Compute the overflow
 294         interrupt and compare events accurately.  Take into account the
 295         pending ticks not processed by the simulator yet (introduced a shift).
 296         (m68hc11_port_event): Reset the timer interrupt delays.
 297         (m68hc11tim_io_read_buffer): Be able to read several bytes.
 298         (m68hc11tim_io_write_buffer): Likewise for write.
 299         (m68hc11tim_io_write_buffer): Recompute the timer overflow interrupt.
 300
 301 2000-09-06  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 302
 303         * dv-m68hc11spi.c (m68hc11spi_io_read_buffer): Clear the interrupts.
 304         (m68hc11spi_io_write_buffer): Likewise and fix the spi frame.
 305         (m68hc11spi_info): Clarify the status report
 306         of the SPI when a byte is being sent.
 307         (m68hc11spi_clock): Fix the spi send frame.
 308
 309 2000-08-11  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 310
 311         * sim-main.h (m68hc11_map_level): Define level of address mappings.
 312         * dv-m68hc11eepr.c (struct m68hc11eepr ): New flag to indicate
 313         whether the eeprom is currently mapped or not.
 314         (m68hc11eepr_port_event): Use the flag to see if we must unmap
 315         or map the eeprom.  Update the flag to reflect the current state.
 316         Use M6811_EEPROM_LEVEL when mapping the eeprom.
 317         (m68hc11eepr_finish): Remove overlap hack.
 318         (attach_m68hc11eepr_regs): Use M6811_IO_LEVEL when mapping the
 319         config and control registers.
 320         * dv-m68hc11.c (m68hc11cpu_finish): Remove overlap hack.
 321         (attach_m68hc11_regs): Use M6811_IO_LEVEL.
 322         (m68hc11cpu_io_write): Likewise when unmapping and re-mapping.
 323         * dv-m68hc11spi.c (m68hc11spi_finish): Likewise.
 324         (attach_m68hc11spi_regs): Likewise.
 325         * dv-m68hc11tim.c (m68hc11tim_finish): Likewise.
 326         (attach_m68hc11tim_regs): Likewise.
 327         * dv-m68hc11sio.c (m68hc11sio_finish): Likewise.
 328         (attach_m68hc11sio_regs): Likewise.
 329         * interp.c (sim_open): Likewise.
 330         * dv-nvram.c (attach_nvram_regs): Likewise.
 331
 332 Thu Jul 27 21:27:25 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 333
 334         * configure, config.in: Regenerate.
 335
 336 2000-06-25  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 337
 338         * Makefile.in (SIM_RUN_OBJS): Define to use nrun.c
 339         * dv-m68hc11.c (m68hc11cpu_finish): Register detach address callback.
 340         (dv_m6811_detach_address_callback): New function to detach a
 341         device from an address space.
 342         * dv-m68hc11eepr.c (m68hc11eepr_port_event): Initialize
 343         config register according to --cpu-config option.
 344         * sim-main.h (_sim_cpu): Add cpu_config member.
 345         * interp.c (sim_open): Delete specific simulator options.
 346         * m68hc11_sim.c (cpu_option_handler): New options
 347         --emulos and -cpu-config <val> to configure the simulator.
 348         (cpu_initialize): Initialize cpu_config member.
 349
 350 2000-06-24  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 351
 352         * emulos.c: Fix indentation and comments.
 353         * gencode.c: Likewise.
 354         * dv-m68hc11tim.c (m68hc11tim_timer_event): Handle COMPARE_EVENT.
 355         (m68hc11tim_io_write_buffer): Write compare registers and
 356         setup compare event.
 357         * interp.c: Remove unused global variables.
 358         * interrupts.c (idefs): New compare interrupts.
 359         Fix indentation and comments.
 360         * interrupts.h: Likewise.
 361
 362 2000-06-18  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 363
 364         * dv-m68hc11sio.c: Fix indentation and comments.
 365         Remove INT_PORT.
 366         * dv-m68hc11.c: Fix indentation and comments.
 367         (m68hc11cpu_port_event): Move initialization of M6811_HPRIO from here.
 368         * m68hc11_sim.c (cpu_reset): To here.
 369         * dv-m68hc11eepr.c: Fix indentation and comments.
 370
 371 2000-06-17  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 372
 373         * dv-nvram.c: New file, rename from dv-pram.c.
 374         * dv-pram.c: Delete file.
 375         * sim-main.h: Incorporate m68hc11_sim.h.
 376         * m68hc11_sim.h: Delete file.
 377         * configure.in: Rename pram into nvram.
 378         * interp.c (sim_open): Likewise in creation of device tree.
 379
 380 2000-05-31  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 381
 382         * interp.c (sim_open): Create the SPI device.
 383         * dv-m68hc11spi.c: New file for SPI device simulation.
 384         * configure.in (hw_extra_devices): Add SPI device.
 385
 386 2000-05-28  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 387
 388         * interrupts.c (interrupts_initialize): Clear XIRQ accounting.
 389         (interrupts_process): Separate IRQ and XIRQ accounting.
 390         (interrupts_info): Report XIRQ accounting.
 391         * interrupts.h (struct interrupts): Added accounting for XIRQ.
 392
 393 2000-04-16  Stephane Carrez  <stcarrez@worldnet.fr>
 394
 395         * dv-pram.c (attach_pram_regs): Fix the 'save-modified' mode.
 396         * m68hc11_sim.h (_sim_cpu): Allow configuration of cpu mode.
 397         * dv-m68hc11.c (attach_m68hc11_regs): Get the cpu MODA,MODB
 398         configuration from the 'mode' device tree property.
 399         (m68hc11cpu_port_event): Reset M6811_HPRIO to the cpu MODA, MODB
 400         configuration.
 401
 402 2000-02-24  Stephane Carrez  <stcarrez@worldnet.fr>
 403
 404         * sim-main.h: Remove WITH_TARGET_* defines.
 405         * Makefile.in (SIM_EXTRA_CFLAGS): Specify the WITH_TARGET_* flags.
 406
 407 2000-02-08  Stephane Carrez  <stcarrez@worldnet.fr>
 408
 409         * dv-m68hc11sio.c (m68hc11sio_port_event): Setup the SCI to
 410         1200 baud when cpu is in bootstrap mode.
 411
 412         * dv-m68hc11tim.c (m68hc11tim_io_write_buffer): Be able to
 413         write in the TCTN timer register.
 414
 415         * dv-m68hc11sio.c (m68hc11sio_io_write_buffer): Divide cpu clock
 416         by 4 to obtain the E clock frequency.
 417         (sccr2_desc): Use M6811_TIE for TIE bit.
 418         (m68hc11sio_info): Fix baud rate report.
 419
 420         * dv-m68hc11tim.c (to_realtime): Likewise.
 421
 422         * interp.c (sim_open): When building device tree, only provide
 423         devices that do not exist yet.
 424
 425         * emulos.c: Fix compilation pb under Windows.
 426
 427         * dv-m68hc11.c (attach_m68hc11_regs): Get the clock frequency
 428         from the 'clock' property.
 429
 430 2000-01-02  Stephane Carrez  <stcarrez@worldnet.fr>
 431
 432         * m68hc11_sim.h (*_REGNUM): Define.
 433         (_sim_cpu): New member cpu_page0_reg table.
 434         * interp.c (sim_create_inferior): Fill the cpu_page0_reg table with
 435         addresses of soft registers in .page0.
 436         (sim_fetch_register, sim_store_register): Use cpu_page0_reg table
 437         to get/set soft registers.
 438
 439 1999-12-31  Stephane Carrez  <stcarrez@worldnet.fr>
 440
 441         * dv-m68hc11.c (m68hc11cpu_io_write_buffer): Clear byte to avoid
 442         returning random values.
 443
 444 1999-12-17  Stephane Carrez  <stcarrez@worldnet.fr>
 445
 446         * gencode.c: Fix "subb N,x" that used a instead of b.
 447
 448 1999-09-09  Stephane Carrez  <stcarrez@worldnet.fr>
 449
 450         * gencode.c: Fixed sbc8 and adc8 when there was a initial carry.
 451
 452 1999-09-01  Stephane Carrez  <stcarrez@worldnet.fr>
 453
 454         * sim-main.h (SIM_HANDLES_LMA): Define to enable loading using lma.
 455
 456 1999-08-14  Stephane Carrez  <stcarrez@worldnet.fr>
 457
 458         * dv-m68hc11.c (attach_m68hc11_regs): Save the size of the
 459         register region in the m68hc11cpu struct.
 460         (m68hc11cpu_io_write): When the IO mapping addres changes,
 461         detach the register region and re-attach it at the new address.
 462         (m68hc11cpu_io_read_buffer): Renamed base_address into
 463         attach_address.
 464         (m68hc11cpu_io_write_buffer): Likewise. Pass the hw pointer
 465         to m68hc11cpu_io_write.
 466
 467 1999-08-13  Stephane Carrez  <stcarrez@worldnet.fr>
 468
 469         * gencode.c: For sbc8, check the carry and increment the source
 470         before trying to set the carry for the result.
 471
 472 1999-05-24  John S. Kallal <kallal@voicenet.com>
 473
 474         * interp.c (sim_get_info): Don't crash if the command line is 0.
 475         Define prototype for sim_get_info() and init_system().
 476         (sim_info): Correct call to sim_get_info().
 477
 478 1999-05-16  Stephane Carrez  <stcarrez@worldnet.fr>
 479
 480         * configure.in: Recognize m6811-*-*.
 481         * configure: Regenerate.
 482         * m68hc11_sim.h (cpu_ccr_update_add8, cpu_ccr_update_add16,
 483         cpu_ccr_update_sub8, cpu_ccr_update_sub16):
 484         Correct the computation of carry of 8 and 16-bits add and subtract.
 485         * gencode.c: Use cpu_ccr_update_sub8 for subtraction (carry and
 486         overflow set in a different manner than add).
 487
 488 1999-05-14  Stephane Carrez  <stcarrez@worldnet.fr>
 489
 490         * dv-m68hc11.c (dv_m6811_attach_address_callback): Removed a
 491         trace message.
 492         * interp.c (sim_open, sim_create_inferior): Initialize the
 493         cpu_elf_start from the ELF header.
 494         * m68hc11_sim.c (cpu_initialize): Clear the new data members.
 495         (cpu_restart): Use cpu_elf_start as the starting address when
 496         the flag is set.
 497         (cpu_special): When cpu_use_elf_start is set, the WAI instruction
 498         exits the simulator (exit status is in D).
 499         * m68hc11_sim.h (_sim_cpu): Added members cpu_use_elf_start and
 500         cpu_elf_star to start execution at address specified in ELF file.
 501
 502 1999-05-02  Stephane Carrez  <stcarrez@worldnet.fr>
 503
 504         * Makefile.in, config.in, configure, configure.in: New files.
 505         * gencode.c: New file, generation of 68HC11 interpreter.
 506         * m68hc11_sim.h, m68hc11_sim.c: New files, specific operations
 507         for interpreter.
 508         * interrupts.c, interrupts.h: New files, management of interrupts.
 509         * interp.c, sim-main.h,
 510         * dv-m68hc11.c, dv-m68hc11eepr.c, dv-m68hc11sio.c,
 511         dv-m68hc11tim.c, dv-pram.c: New files representing devices for
 512         68HC11 (dv-pram.c is generic and could probably migrate to common).
 513         * emulos.c: New file, basic emulation of some os.