sim/m68hc11/ChangeLog

   1 2003-03-02  Stephane Carrez  <stcarrez@nerim.fr>
   2
   3         * Makefile.in (SIM_EXTRA_CFLAGS): Set WITH_TARGET_ADDRESS_BITSIZE
   4         to 32 to support memory bank switching; temporarily use 32-bit for
   5         WORD_BITSIZE to avoid a bug in sim-common.
   6
   7 2003-03-01  Stephane Carrez  <stcarrez@nerim.fr>
   8
   9         * interp.c (sim_fetch_register): Only store a single byte for
  10         1 byte registers.
  11
  12 2003-02-27  Andrew Cagney  <cagney@redhat.com>
  13
  14         * interp.c (sim_prepare_for_program, sim_open)
  15         (sim_create_inferior): Rename _bfd to bfd.
  16
  17 2002-08-13  Stephane Carrez  <stcarrez@nerim.fr>
  18
  19         * dv-m68hc11eepr.c (struct m68hc11eepr ): Use const char* for filename.
  20
  21 2002-08-13  Marko Kohtala  <marko.kohtala@luukku.com>
  22
  23         * interp.c (sim_prepare_for_program): Look up the image for the
  24         reset vector and set cpu_use_elf_start to 1 if not found.
  25         (sim_open): Do not set cpu_use_elf_start.
  26
  27 2002-08-13  Marko Kohtala  <marko.kohtala@luukku.com>
  28
  29         * interp.c (sim_hw_configure): Return 1 for success.
  30         (sim_prepare_for_program): Use the sim_hw_configure exit code to
  31         return SIM_RC_FAIL.
  32
  33 2002-08-13  Stephane Carrez  <stcarrez@nerim.fr>
  34
  35         * dv-m68hc11.c (m68hc11cpu_io_read_buffer): Translate memory
  36         bank window to some virtual address to read from extended memory.
  37         (m68hc11cpu_io_write_buffer): Likewise for writing.
  38         (attach_m68hc11_regs): When use_bank property is defined, attach
  39         to the 68HC12 16K memory bank window.
  40         * interp.c (sim_hw_configure): Create memory region for banked
  41         memory.
  42
  43 2002-08-13  Stephane Carrez  <Stephane.Carrez@nerim.fr>
  44
  45         * interp.c (sim_hw_configure): Connect port-X to cpu-write-port.
  46         * dv-m68hc11.c (m68hc11cpu_ports): Add cpu-write-port input.
  47         (m68hc11cpu_port_event): Handle CPU_WRITE_PORT event.
  48
  49 2002-08-13  Marko Kohtala  <marko.kohtala@luukku.com>
  50
  51         * dv-m68hc11.c (m68hc11cpu_io_write): Fix to update IO mapping
  52         when IO mapping changed, not when internal RAM mapping is changed.
  53
  54 2002-08-13  Stephane Carrez  <stcarrez@nerim.fr>
  55
  56         * m68hc11_sim.c (cpu_special): Handle call and rtc instructions.
  57         * sim-main.h (M6812_CALL_INDIRECT): Add to enum.
  58         (m6811_regs): Add page register.
  59         (cpu_set_page, cpu_get_page): New macros.
  60         (phys_to_virt): New function.
  61         (cpu_get_indexed_operand_addr, cpu_return): Declare.
  62         * gencode.c: Identify indirect addressing mode for call and fix daa.
  63         (gen_function_entry): New param to tell if src8/dst8 locals are
  64         necessary.
  65         (gen_interpreter): Use it to avoid generation of unused variables.
  66         * interp.c (sim_fetch_register): Allow to read page register; page
  67         register, A, B and CCR are only 1 byte wide.
  68         (sim_store_register): Likewise for writing.
  69
  70 2002-06-16  Andrew Cagney  <ac131313@redhat.com>
  71
  72         * configure: Regenerated to track ../common/aclocal.m4 changes.
  73
  74 2002-06-09  Andrew Cagney  <cagney@redhat.com>
  75
  76         * Makefile.in (INCLUDE): Update path to callback.h.
  77         * sim-main.h: Include "gdb/callback.h" and "gdb/remote-sim.h".
  78
  79 2002-03-07  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
  80
  81         * m68hc11_sim.c (cpu_move8): Call sim_engine_abort in default case.
  82         (cpu_move16): Likewise.
  83         (sim_memory_error): Use sim_io_printf.
  84         (cpu_option_handler): Fix compilation warning.
  85         * interp.c (sim_hw_configure): Fix compilation warning;
  86         remove m68hc12sio@2 device.
  87         (sim_open): Likewise.
  88         * dv-m68hc11tim.c (m68hc11tim_port_event): Fix clear of TFLG2
  89         flags when reset.
  90         (cycle_to_string): Improve convertion of cpu cycle number.
  91         (m68hc11tim_info): Print info about PACNT.
  92         (m68hc11tim_io_write_buffer): Fix clearing of TFLG2; handle
  93         TCTL1 and TCTL2 registers.
  94         * dv-m68hc11.c (m68hc11_info): Print 6811 current running mode.
  95
  96 2002-03-07  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
  97
  98         * interp.c (sim_hw_configure): Save the HW cpu pointer in the
  99         cpu struct.
 100         (sim_hw_configure): Connect the capture input/output events.
 101         * sim-main.h (_sim_cpu): New member hw_cpu.
 102         (m68hc11cpu_set_oscillator): Declare.
 103         (m68hc11cpu_clear_oscillator): Declare.
 104         (m68hc11cpu_set_port): Declare.
 105         * dv-m68hc11.c (m68hc11_options): New for oscillator commands.
 106         (m68hc11cpu_ports): New input ports and output ports to reflect
 107         the HC11 IOs.
 108         (m68hc11_delete): Cleanup any running oscillator.
 109         (attach_m68hc11_regs): Create the input oscillators.
 110         (make_oscillator): New function.
 111         (find_oscillator): New function.
 112         (oscillator_handler): New function.
 113         (reset_oscillators): New function.
 114         (m68hc11cpu_port_event): Handle the new input ports.
 115         (m68hc11cpu_set_oscillator): New function.
 116         (m68hc11cpu_clear_oscillator): New function.
 117         (get_frequency): New function.
 118         (m68hc11_option_handler): New function.
 119         (m68hc11cpu_set_port): New function.
 120         (m68hc11cpu_io_write): Post the port output events.
 121         * dv-m68hc11spi.c (set_bit_port): Use m68hc11cpu_set_port to set
 122         the output port value.
 123         * dv-m68hc11tim.c (m68hc11tim_port_event): Handle CAPTURE event
 124         by latching the TCNT value in the register.
 125
 126 2002-03-07  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 127
 128         * sim-main.h (cpu_frame, cpu_frame_list): Remove.
 129         (cpu_frame_reg, cpu_print_frame): Remove.
 130         (cpu_m68hc11_push_uint8, cpu_m68hc11_pop_uint8): Cleanup.
 131         (cpu_m68hc11_push_uint16, cpu_m68hc11_pop_uint16): Likewise.
 132         (cpu_m68hc12_push_uint8, cpu_m68hc12_push_uint16): Likewise.
 133         (cpu_m68hc12_pop_uint8, cpu_m68hc12_pop_uint16): Likewise.
 134         * m68hc11_sim.c (cpu_find_frame): Remove.
 135         (cpu_create_frame_list): Remove.
 136         (cpu_remove_frame_list, cpu_create_frame, cpu_free_frame): Remove.
 137         (cpu_frame_reg, cpu_print_frame, cpu_update_frame): Remove.
 138         (cpu_call): Cleanup to remove #if HAVE_FRAME and calls to the above.
 139         (cpu_update_frame): Likewise.
 140         (cpu_return): Likewise.
 141         (cpu_reset): Likewise.
 142         (cpu_initialize): Likewise.
 143         * interp.c (sim_do_command): Remove call to cpu_print_frame.
 144
 145 2002-03-07  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 146
 147         * interrupts.c (interrupts_reset): New function, setup interrupt
 148         vector address according to cpu mode.
 149         (interrupts_initialize): Move reset portion to the above.
 150         (interrupt_names): New table to give a name to interrupts.
 151         (idefs): Handle pulse accumulator interrupts.
 152         (interrupts_info): Print the interrupt history.
 153         (interrupt_option_handler): New function.
 154         (interrupt_options): New table of options.
 155         (interrupts_update_pending): Keep track of when interrupts are
 156         raised and implement breakpoint-on-raise-interrupt.
 157         (interrupts_process): Keep track of when interrupts are taken
 158         and implement breakpoint-on-interrupt.
 159         * interrupts.h (struct interrupt_history): Define.
 160         (struct interrupt): Keep track of the interrupt history.
 161         (interrupts_reset): Declare.
 162         (interrupts_initialize): Update prototype.
 163         * m68hc11_sim.c (cpu_reset): Reset interrupts.
 164         (cpu_initialize): Cleanup.
 165
 166 2001-07-28  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 167
 168         * dv-m68hc11eepr.c (m68hc11eepr_info): Fix print of current write
 169         address.
 170         (m68hc11eepr_port_event): Fix detach/attach logic.
 171
 172 2001-07-22  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 173
 174         * Makefile.in (SIM_OBJS): Remove sim-resume.o
 175         * interp.c (sim_resume): New function from sim-resume.c, install
 176         the stepping event after having processed the pending ticks.
 177         (has_stepped): Likewise.
 178         (sim_info): Produce an output only if verbose or STATE_VERBOSE_P.
 179
 180 2001-07-10  Andrew Cagney  <ac131313@redhat.com>
 181
 182         * Makefile.in (gencode): Provide explicit path to gencode.c.
 183
 184 2001-05-20  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 185
 186         * Makefile.in (M68HC11_OBJS): Add m68hc12int.o.
 187         (m68hc12int.c): Generate using gencode -m6812.
 188         (m68hc11int.c): Likewise with -m6811.
 189
 190         * gencode.c (m6811_opcode_patterns): New patterns for 68HC12.
 191         (m6811_page1_opcodes): Remove duplicate entries.
 192         (m6811_page2_opcodes): Likewise.
 193         (m6811_page3_opcodes): Likewise.
 194         (m6811_page4_opcodes): Likewise.
 195         (m6812_page1_opcodes): New table for 68HC12 instructions.
 196         (m6812_page2_opcodes): Likewise.
 197         (gen_fetch_operands): New modes [] and &[] for 68HC12 operands.
 198         (gen_save_result): Likewise.
 199         (gen_interpreter_for_table): Handle 68HC11 and 68HC12 opcodes.
 200         (cmp_opcode): New function for opcode comparision.
 201         (prepare_table): Sort the opcodes.
 202         (gen_interpreter): Prepare all the tables and generate either
 203         a 68HC11 or a 68HC12 simulator.
 204         (main): New options -m6811 and -m6812.
 205
 206         * m68hc11_sim.c (cpu_single_step): Use pointer to cpu interpretor.
 207         (cpu_special): Simulation of some 68HC12 instructions.
 208         (cpu_exg): New function.
 209         (cpu_dbcc): Likewise.
 210         (cpu_fetch_relbranch16): Likewise.
 211         (cpu_push_all): Push according to 68HC11 or 68HC12.
 212         (cpu_move16): Likewise.
 213         (cpu_move8): Likewise.
 214         (cpu_get_indexed_operand16): Likewise.
 215         (cpu_get_indexed_operand8): Likewise.
 216         (cpu_get_indexed_operand_addr): Likewise.
 217         (cpu_set_reg, cpu_set_dst_reg, cpu_get_src_reg, cpu_get_reg): Likewise.
 218         (cpu_reset): Setup INIT register according to architecture.
 219
 220         * sim-main.h (M6811_Special): Add 68HC12 specific instructions.
 221         (_sim_cpu): Keep track of the cpu being simulated.
 222         (cpu_get_tmp3, cpu_get_tmp2, cpu_set_tmp3, cpu_set_tmp2): New.
 223         (cpu_m68hc11_push_uintxx): Rename of cpu_push_uintxx.
 224         (cpu_m68hc11_pop_uint8): Likewise.
 225         (cpu_m68hc12_push_uintxx): New functions for 68HC12.
 226         (cpu_m68hc12_pop_uintxx): Likewise.
 227         (cpu_exg, cpu_dbcc, cpu_move8, cpu_move16): Likewise,
 228         (cpu_fetch_relbranch16): Likewise.
 229         (cpu_interp_m6811): Rename of cpu_interp.
 230         (cpu_interp_m6812): New function.
 231         * interp.c (free_state): New function.
 232         (dev_list_68hc12): New table.
 233         (sim_board_reset): Reset depending on the cpu (HC11 or HC12).
 234         (sim_hw_configure): New function.
 235         (sim_prepare_for_program): New function.
 236         (sim_open): Use above new functions.
 237         (sim_close): Call free_state().
 238         (sim_info): Print info according to cpu.
 239         (sim_create_inferior): Use sim_prepare_for_program.
 240         (sim_do_command): Configure the hardware after a change of the
 241         architecture.
 242
 243 2001-05-20  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 244
 245         * dv-m68hc11sio.c (m68hc11sio_tx_poll): Always check for
 246         pending interrupts.
 247         * interrupts.c (interrupts_process): Keep track of the last number
 248         of masked insn cycles.
 249         (interrupts_initialize): Clear last number of masked insn cycles.
 250         (interrupts_info): Report them.
 251         (interrupts_update_pending): Compute clear and set masks of
 252         interrupts and clear the interrupt bits before setting them
 253         (due to SCI interrupt sharing).
 254         * interrupts.h (struct interrupts): New members last_mask_cycles
 255         and xirq_last_mask_cycles.
 256
 257 2000-11-26  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 258
 259         * dv-m68hc11.c (m68hc11cpu_io_read_buffer): Use attach_size
 260         instead of a hard-coded value.
 261         (m68hc11cpu_io_write_buffer): Likewise.
 262         (dv_m68hc11_descriptor): Define a 68hc12 device.
 263         * dv-m68hc11eepr.c (dv_m68hc11eepr_descriptor): Likewise.
 264         * dv-m68hc11tim.c (dv_m68hc11tim_descriptor): Likewise.
 265         * dv-m68hc11spi.c (dv_m68hc11spi_descriptor): Likewise.
 266         * dv-m68hc11sio.c (dv_m68hc11sio_descriptor): Likewise.
 267
 268 2000-11-22  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 269
 270         * dv-m68hc11.c (attach_m68hc11_regs): Register a delete handler.
 271         (m68hc11cpu_delete): Delete handler to detach the address space.
 272
 273 2000-11-24  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 274
 275         * dv-m68hc11eepr.c (attach_m68hc11eepr_regs): Use hw_malloc.
 276         * dv-nvram.c (attach_nvram_regs): Use hw_free and hw_malloc
 277         instead of free and malloc.
 278
 279 2000-09-11  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 280
 281         * Makefile.in: Was missing from initial patch.
 282
 283 2000-09-10  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 284
 285         * interp.c (sim_store_register): Remove soft register hack.
 286         (sim_fetch_register): Likewise.
 287         (sim_create_inferior): Likewise.
 288         * sim-main.h: Likewise.
 289
 290 2000-09-10  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 291
 292         * interrupts.c (interrupts_update_pending): Clear the mask of
 293         pending interrupts here.
 294         (interrupts_get_current): Don't clear the mask of pending interrupts.
 295
 296 2000-09-10  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 297
 298         * sim-main.h: Define cycle_to_string.
 299         * dv-m68hc11tim.c (cycle_to_string): New function to translate
 300         the cpu cycle into some formatted time string.
 301         (m68hc11tim_print_timer): Use it.
 302         * dv-m68hc11sio.c (m68hc11sio_info): Use cycle_to_string.
 303         * dv-m68hc11spi.c (m68hc11spi_info): Likewise.
 304         * interrupts.c (interrupts_info): Likewise.
 305         * m68hc11_sim.c (cpu_info): Likewise.
 306
 307 2000-09-06  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 308
 309         * dv-m68hc11tim.c (m68hc11tim_timer_event): Compute the overflow
 310         interrupt and compare events accurately.  Take into account the
 311         pending ticks not processed by the simulator yet (introduced a shift).
 312         (m68hc11_port_event): Reset the timer interrupt delays.
 313         (m68hc11tim_io_read_buffer): Be able to read several bytes.
 314         (m68hc11tim_io_write_buffer): Likewise for write.
 315         (m68hc11tim_io_write_buffer): Recompute the timer overflow interrupt.
 316
 317 2000-09-06  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 318
 319         * dv-m68hc11spi.c (m68hc11spi_io_read_buffer): Clear the interrupts.
 320         (m68hc11spi_io_write_buffer): Likewise and fix the spi frame.
 321         (m68hc11spi_info): Clarify the status report
 322         of the SPI when a byte is being sent.
 323         (m68hc11spi_clock): Fix the spi send frame.
 324
 325 2000-08-11  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 326
 327         * sim-main.h (m68hc11_map_level): Define level of address mappings.
 328         * dv-m68hc11eepr.c (struct m68hc11eepr ): New flag to indicate
 329         whether the eeprom is currently mapped or not.
 330         (m68hc11eepr_port_event): Use the flag to see if we must unmap
 331         or map the eeprom.  Update the flag to reflect the current state.
 332         Use M6811_EEPROM_LEVEL when mapping the eeprom.
 333         (m68hc11eepr_finish): Remove overlap hack.
 334         (attach_m68hc11eepr_regs): Use M6811_IO_LEVEL when mapping the
 335         config and control registers.
 336         * dv-m68hc11.c (m68hc11cpu_finish): Remove overlap hack.
 337         (attach_m68hc11_regs): Use M6811_IO_LEVEL.
 338         (m68hc11cpu_io_write): Likewise when unmapping and re-mapping.
 339         * dv-m68hc11spi.c (m68hc11spi_finish): Likewise.
 340         (attach_m68hc11spi_regs): Likewise.
 341         * dv-m68hc11tim.c (m68hc11tim_finish): Likewise.
 342         (attach_m68hc11tim_regs): Likewise.
 343         * dv-m68hc11sio.c (m68hc11sio_finish): Likewise.
 344         (attach_m68hc11sio_regs): Likewise.
 345         * interp.c (sim_open): Likewise.
 346         * dv-nvram.c (attach_nvram_regs): Likewise.
 347
 348 Thu Jul 27 21:27:25 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 349
 350         * configure, config.in: Regenerate.
 351
 352 2000-06-25  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 353
 354         * Makefile.in (SIM_RUN_OBJS): Define to use nrun.c
 355         * dv-m68hc11.c (m68hc11cpu_finish): Register detach address callback.
 356         (dv_m6811_detach_address_callback): New function to detach a
 357         device from an address space.
 358         * dv-m68hc11eepr.c (m68hc11eepr_port_event): Initialize
 359         config register according to --cpu-config option.
 360         * sim-main.h (_sim_cpu): Add cpu_config member.
 361         * interp.c (sim_open): Delete specific simulator options.
 362         * m68hc11_sim.c (cpu_option_handler): New options
 363         --emulos and -cpu-config <val> to configure the simulator.
 364         (cpu_initialize): Initialize cpu_config member.
 365
 366 2000-06-24  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 367
 368         * emulos.c: Fix indentation and comments.
 369         * gencode.c: Likewise.
 370         * dv-m68hc11tim.c (m68hc11tim_timer_event): Handle COMPARE_EVENT.
 371         (m68hc11tim_io_write_buffer): Write compare registers and
 372         setup compare event.
 373         * interp.c: Remove unused global variables.
 374         * interrupts.c (idefs): New compare interrupts.
 375         Fix indentation and comments.
 376         * interrupts.h: Likewise.
 377
 378 2000-06-18  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 379
 380         * dv-m68hc11sio.c: Fix indentation and comments.
 381         Remove INT_PORT.
 382         * dv-m68hc11.c: Fix indentation and comments.
 383         (m68hc11cpu_port_event): Move initialization of M6811_HPRIO from here.
 384         * m68hc11_sim.c (cpu_reset): To here.
 385         * dv-m68hc11eepr.c: Fix indentation and comments.
 386
 387 2000-06-17  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 388
 389         * dv-nvram.c: New file, rename from dv-pram.c.
 390         * dv-pram.c: Delete file.
 391         * sim-main.h: Incorporate m68hc11_sim.h.
 392         * m68hc11_sim.h: Delete file.
 393         * configure.in: Rename pram into nvram.
 394         * interp.c (sim_open): Likewise in creation of device tree.
 395
 396 2000-05-31  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 397
 398         * interp.c (sim_open): Create the SPI device.
 399         * dv-m68hc11spi.c: New file for SPI device simulation.
 400         * configure.in (hw_extra_devices): Add SPI device.
 401
 402 2000-05-28  Stephane Carrez  <Stephane.Carrez@worldnet.fr>
 403
 404         * interrupts.c (interrupts_initialize): Clear XIRQ accounting.
 405         (interrupts_process): Separate IRQ and XIRQ accounting.
 406         (interrupts_info): Report XIRQ accounting.
 407         * interrupts.h (struct interrupts): Added accounting for XIRQ.
 408
 409 2000-04-16  Stephane Carrez  <stcarrez@worldnet.fr>
 410
 411         * dv-pram.c (attach_pram_regs): Fix the 'save-modified' mode.
 412         * m68hc11_sim.h (_sim_cpu): Allow configuration of cpu mode.
 413         * dv-m68hc11.c (attach_m68hc11_regs): Get the cpu MODA,MODB
 414         configuration from the 'mode' device tree property.
 415         (m68hc11cpu_port_event): Reset M6811_HPRIO to the cpu MODA, MODB
 416         configuration.
 417
 418 2000-02-24  Stephane Carrez  <stcarrez@worldnet.fr>
 419
 420         * sim-main.h: Remove WITH_TARGET_* defines.
 421         * Makefile.in (SIM_EXTRA_CFLAGS): Specify the WITH_TARGET_* flags.
 422
 423 2000-02-08  Stephane Carrez  <stcarrez@worldnet.fr>
 424
 425         * dv-m68hc11sio.c (m68hc11sio_port_event): Setup the SCI to
 426         1200 baud when cpu is in bootstrap mode.
 427
 428         * dv-m68hc11tim.c (m68hc11tim_io_write_buffer): Be able to
 429         write in the TCTN timer register.
 430
 431         * dv-m68hc11sio.c (m68hc11sio_io_write_buffer): Divide cpu clock
 432         by 4 to obtain the E clock frequency.
 433         (sccr2_desc): Use M6811_TIE for TIE bit.
 434         (m68hc11sio_info): Fix baud rate report.
 435
 436         * dv-m68hc11tim.c (to_realtime): Likewise.
 437
 438         * interp.c (sim_open): When building device tree, only provide
 439         devices that do not exist yet.
 440
 441         * emulos.c: Fix compilation pb under Windows.
 442
 443         * dv-m68hc11.c (attach_m68hc11_regs): Get the clock frequency
 444         from the 'clock' property.
 445
 446 2000-01-02  Stephane Carrez  <stcarrez@worldnet.fr>
 447
 448         * m68hc11_sim.h (*_REGNUM): Define.
 449         (_sim_cpu): New member cpu_page0_reg table.
 450         * interp.c (sim_create_inferior): Fill the cpu_page0_reg table with
 451         addresses of soft registers in .page0.
 452         (sim_fetch_register, sim_store_register): Use cpu_page0_reg table
 453         to get/set soft registers.
 454
 455 1999-12-31  Stephane Carrez  <stcarrez@worldnet.fr>
 456
 457         * dv-m68hc11.c (m68hc11cpu_io_write_buffer): Clear byte to avoid
 458         returning random values.
 459
 460 1999-12-17  Stephane Carrez  <stcarrez@worldnet.fr>
 461
 462         * gencode.c: Fix "subb N,x" that used a instead of b.
 463
 464 1999-09-09  Stephane Carrez  <stcarrez@worldnet.fr>
 465
 466         * gencode.c: Fixed sbc8 and adc8 when there was a initial carry.
 467
 468 1999-09-01  Stephane Carrez  <stcarrez@worldnet.fr>
 469
 470         * sim-main.h (SIM_HANDLES_LMA): Define to enable loading using lma.
 471
 472 1999-08-14  Stephane Carrez  <stcarrez@worldnet.fr>
 473
 474         * dv-m68hc11.c (attach_m68hc11_regs): Save the size of the
 475         register region in the m68hc11cpu struct.
 476         (m68hc11cpu_io_write): When the IO mapping addres changes,
 477         detach the register region and re-attach it at the new address.
 478         (m68hc11cpu_io_read_buffer): Renamed base_address into
 479         attach_address.
 480         (m68hc11cpu_io_write_buffer): Likewise. Pass the hw pointer
 481         to m68hc11cpu_io_write.
 482
 483 1999-08-13  Stephane Carrez  <stcarrez@worldnet.fr>
 484
 485         * gencode.c: For sbc8, check the carry and increment the source
 486         before trying to set the carry for the result.
 487
 488 1999-05-24  John S. Kallal <kallal@voicenet.com>
 489
 490         * interp.c (sim_get_info): Don't crash if the command line is 0.
 491         Define prototype for sim_get_info() and init_system().
 492         (sim_info): Correct call to sim_get_info().
 493
 494 1999-05-16  Stephane Carrez  <stcarrez@worldnet.fr>
 495
 496         * configure.in: Recognize m6811-*-*.
 497         * configure: Regenerate.
 498         * m68hc11_sim.h (cpu_ccr_update_add8, cpu_ccr_update_add16,
 499         cpu_ccr_update_sub8, cpu_ccr_update_sub16):
 500         Correct the computation of carry of 8 and 16-bits add and subtract.
 501         * gencode.c: Use cpu_ccr_update_sub8 for subtraction (carry and
 502         overflow set in a different manner than add).
 503
 504 1999-05-14  Stephane Carrez  <stcarrez@worldnet.fr>
 505
 506         * dv-m68hc11.c (dv_m6811_attach_address_callback): Removed a
 507         trace message.
 508         * interp.c (sim_open, sim_create_inferior): Initialize the
 509         cpu_elf_start from the ELF header.
 510         * m68hc11_sim.c (cpu_initialize): Clear the new data members.
 511         (cpu_restart): Use cpu_elf_start as the starting address when
 512         the flag is set.
 513         (cpu_special): When cpu_use_elf_start is set, the WAI instruction
 514         exits the simulator (exit status is in D).
 515         * m68hc11_sim.h (_sim_cpu): Added members cpu_use_elf_start and
 516         cpu_elf_star to start execution at address specified in ELF file.
 517
 518 1999-05-02  Stephane Carrez  <stcarrez@worldnet.fr>
 519
 520         * Makefile.in, config.in, configure, configure.in: New files.
 521         * gencode.c: New file, generation of 68HC11 interpreter.
 522         * m68hc11_sim.h, m68hc11_sim.c: New files, specific operations
 523         for interpreter.
 524         * interrupts.c, interrupts.h: New files, management of interrupts.
 525         * interp.c, sim-main.h,
 526         * dv-m68hc11.c, dv-m68hc11eepr.c, dv-m68hc11sio.c,
 527         dv-m68hc11tim.c, dv-pram.c: New files representing devices for
 528         68HC11 (dv-pram.c is generic and could probably migrate to common).
 529         * emulos.c: New file, basic emulation of some os.