sim/m68hc11/ChangeLog

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