diff options
Diffstat (limited to 'sim/m68hc11/interp.c')
| -rw-r--r-- | sim/m68hc11/interp.c | 294 |
1 files changed, 214 insertions, 80 deletions
diff --git a/sim/m68hc11/interp.c b/sim/m68hc11/interp.c index f9de865..e043992 100644 --- a/sim/m68hc11/interp.c +++ b/sim/m68hc11/interp.c @@ -1,5 +1,5 @@ /* interp.c -- Simulator for Motorola 68HC11 - Copyright (C) 1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. Written by Stephane Carrez (stcarrez@worldnet.fr) This file is part of GDB, the GNU debugger. @@ -55,7 +55,7 @@ struct sim_info_list const char *device; }; -struct sim_info_list dev_list[] = { +struct sim_info_list dev_list_68hc11[] = { {"cpu", "/m68hc11"}, {"timer", "/m68hc11/m68hc11tim"}, {"sio", "/m68hc11/m68hc11sio"}, @@ -64,18 +64,48 @@ struct sim_info_list dev_list[] = { {0, 0} }; +struct sim_info_list dev_list_68hc12[] = { + {"cpu", "/m68hc12"}, + {"timer", "/m68hc12/m68hc12tim"}, + {"sio", "/m68hc12/m68hc12sio"}, + {"spi", "/m68hc12/m68hc12spi"}, + {"eeprom", "/m68hc12/m68hc12eepr"}, + {0, 0} +}; + +/* Cover function of sim_state_free to free the cpu buffers as well. */ + +static void +free_state (SIM_DESC sd) +{ + if (STATE_MODULES (sd) != NULL) + sim_module_uninstall (sd); + + sim_state_free (sd); +} + /* Give some information about the simulator. */ static void sim_get_info (SIM_DESC sd, char *cmd) { sim_cpu *cpu; + cpu = STATE_CPU (sd, 0); if (cmd != 0 && (cmd[0] == ' ' || cmd[0] == '-')) { int i; struct hw *hw_dev; + struct sim_info_list *dev_list; + const struct bfd_arch_info *arch; + + arch = STATE_ARCHITECTURE (sd); cmd++; + if (arch->arch == bfd_arch_m68hc11) + dev_list = dev_list_68hc11; + else + dev_list = dev_list_68hc12; + for (i = 0; dev_list[i].name; i++) if (strcmp (cmd, dev_list[i].name) == 0) break; @@ -96,7 +126,6 @@ sim_get_info (SIM_DESC sd, char *cmd) return; } - cpu = STATE_CPU (sd, 0); cpu_info (sd, cpu); interrupts_info (sd, &cpu->cpu_interrupts); } @@ -107,13 +136,28 @@ sim_board_reset (SIM_DESC sd) { struct hw *hw_cpu; sim_cpu *cpu; + const struct bfd_arch_info *arch; + const char *cpu_type; cpu = STATE_CPU (sd, 0); + arch = STATE_ARCHITECTURE (sd); + /* hw_cpu = sim_hw_parse (sd, "/"); */ - hw_cpu = sim_hw_parse (sd, "/m68hc11"); + if (arch->arch == bfd_arch_m68hc11) + { + cpu->cpu_type = CPU_M6811; + cpu_type = "/m68hc11"; + } + else + { + cpu->cpu_type = CPU_M6812; + cpu_type = "/m68hc12"; + } + + hw_cpu = sim_hw_parse (sd, cpu_type); if (hw_cpu == 0) { - sim_io_eprintf (sd, "m68hc11 cpu not found in device tree."); + sim_io_eprintf (sd, "%s cpu not found in device tree.", cpu_type); return; } @@ -122,6 +166,144 @@ sim_board_reset (SIM_DESC sd) cpu_restart (cpu); } +int +sim_hw_configure (SIM_DESC sd) +{ + const struct bfd_arch_info *arch; + struct hw *device_tree; + int m6811_mode; + sim_cpu *cpu; + + arch = STATE_ARCHITECTURE (sd); + if (arch == 0) + return 0; + + cpu = STATE_CPU (sd, 0); + cpu->cpu_configured_arch = arch; + device_tree = sim_hw_parse (sd, "/"); + if (arch->arch == bfd_arch_m68hc11) + { + cpu->cpu_interpretor = cpu_interp_m6811; + if (hw_tree_find_property (device_tree, "/m68hc11/reg") == 0) + { + /* Allocate core managed memory */ + + /* the monitor */ + sim_do_commandf (sd, "memory region 0x%lx@%d,0x%lx", + /* MONITOR_BASE, MONITOR_SIZE */ + 0x8000, M6811_RAM_LEVEL, 0x8000); + sim_do_commandf (sd, "memory region 0x000@%d,0x8000", + M6811_RAM_LEVEL); + sim_hw_parse (sd, "/m68hc11/reg 0x1000 0x03F"); + } + + if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11sio/reg") == 0) + { + sim_hw_parse (sd, "/m68hc11/m68hc11sio/reg 0x2b 0x5"); + sim_hw_parse (sd, "/m68hc11/m68hc11sio/backend stdio"); + sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11sio"); + } + if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11tim/reg") == 0) + { + /* M68hc11 Timer configuration. */ + sim_hw_parse (sd, "/m68hc11/m68hc11tim/reg 0x1b 0x5"); + sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11tim"); + } + + /* Create the SPI device. */ + if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11spi/reg") == 0) + { + sim_hw_parse (sd, "/m68hc11/m68hc11spi/reg 0x28 0x3"); + sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11spi"); + } + if (hw_tree_find_property (device_tree, "/m68hc11/nvram/reg") == 0) + { + /* M68hc11 persistent ram configuration. */ + sim_hw_parse (sd, "/m68hc11/nvram/reg 0x0 256"); + sim_hw_parse (sd, "/m68hc11/nvram/file m68hc11.ram"); + sim_hw_parse (sd, "/m68hc11/nvram/mode save-modified"); + /*sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/pram"); */ + } + if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11eepr/reg") == 0) + { + sim_hw_parse (sd, "/m68hc11/m68hc11eepr/reg 0xb000 512"); + sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11eepr"); + } + } + else + { + cpu->cpu_interpretor = cpu_interp_m6812; + if (hw_tree_find_property (device_tree, "/m68hc12/reg") == 0) + { + /* Allocate core external memory. */ + sim_do_commandf (sd, "memory region 0x%lx@%d,0x%lx", + 0x8000, M6811_RAM_LEVEL, 0x8000); + sim_do_commandf (sd, "memory region 0x000@%d,0x8000", + M6811_RAM_LEVEL); + + sim_hw_parse (sd, "/m68hc12/reg 0x0 0x3FF"); + } + + if (!hw_tree_find_property (device_tree, "/m68hc12/m68hc12sio@1/reg")) + { + sim_hw_parse (sd, "/m68hc12/m68hc12sio@1/reg 0xC0 0x8"); + sim_hw_parse (sd, "/m68hc12/m68hc12sio@1/backend stdio"); + sim_hw_parse (sd, "/m68hc12 > cpu-reset reset /m68hc12/m68hc12sio@1"); + } + if (!hw_tree_find_property (device_tree, "/m68hc12/m68hc12sio@2/reg")) + { + sim_hw_parse (sd, "/m68hc12/m68hc12sio@2/reg 0xC8 0x8"); + sim_hw_parse (sd, "/m68hc12/m68hc12sio@2/backend tcp"); + sim_hw_parse (sd, "/m68hc12 > cpu-reset reset /m68hc12/m68hc12sio@2"); + } + if (hw_tree_find_property (device_tree, "/m68hc12/m68hc12tim/reg") == 0) + { + /* M68hc11 Timer configuration. */ + sim_hw_parse (sd, "/m68hc12/m68hc12tim/reg 0x1b 0x5"); + sim_hw_parse (sd, "/m68hc12 > cpu-reset reset /m68hc12/m68hc12tim"); + } + + /* Create the SPI device. */ + if (hw_tree_find_property (device_tree, "/m68hc12/m68hc12spi/reg") == 0) + { + sim_hw_parse (sd, "/m68hc12/m68hc12spi/reg 0x28 0x3"); + sim_hw_parse (sd, "/m68hc12 > cpu-reset reset /m68hc12/m68hc12spi"); + } + if (hw_tree_find_property (device_tree, "/m68hc12/nvram/reg") == 0) + { + /* M68hc11 persistent ram configuration. */ + sim_hw_parse (sd, "/m68hc12/nvram/reg 0x2000 8192"); + sim_hw_parse (sd, "/m68hc12/nvram/file m68hc12.ram"); + sim_hw_parse (sd, "/m68hc12/nvram/mode save-modified"); + } + if (hw_tree_find_property (device_tree, "/m68hc12/m68hc12eepr/reg") == 0) + { + sim_hw_parse (sd, "/m68hc12/m68hc12eepr/reg 0x0800 2048"); + sim_hw_parse (sd, "/m68hc12 > cpu-reset reset /m68hc12/m68hc12eepr"); + } + } + return 0; +} + +static int +sim_prepare_for_program (SIM_DESC sd, struct _bfd* abfd) +{ + sim_cpu *cpu; + + cpu = STATE_CPU (sd, 0); + + sim_hw_configure (sd); + if (abfd != NULL) + { + cpu->cpu_elf_start = bfd_get_start_address (abfd); + } + + /* reset all state information */ + sim_board_reset (sd); + + return SIM_RC_OK; +} + SIM_DESC sim_open (SIM_OPEN_KIND kind, host_callback *callback, struct _bfd *abfd, char **argv) @@ -144,7 +326,10 @@ sim_open (SIM_OPEN_KIND kind, host_callback *callback, cpu->cpu_use_elf_start = 1; if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) - return 0; + { + free_state (sd); + return 0; + } /* getopt will print the error message so we just have to exit if this fails. FIXME: Hmmm... in the case of gdb we need getopt to call @@ -153,72 +338,24 @@ sim_open (SIM_OPEN_KIND kind, host_callback *callback, { /* Uninstall the modules to avoid memory leaks, file descriptor leaks, etc. */ - sim_module_uninstall (sd); + free_state (sd); return 0; } - device_tree = sim_hw_parse (sd, "/"); - if (hw_tree_find_property (device_tree, "/m68hc11/reg") == 0) - { - /* Allocate core managed memory */ - - /* the monitor */ - sim_do_commandf (sd, "memory region 0x%lx@%d,0x%lx", - /* MONITOR_BASE, MONITOR_SIZE */ - 0x8000, M6811_RAM_LEVEL, 0x8000); - sim_do_commandf (sd, "memory region 0x000@%d,0x8000", - M6811_RAM_LEVEL); - sim_hw_parse (sd, "/m68hc11/reg 0x1000 0x03F"); - } - - if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11sio/reg") == 0) - { - sim_hw_parse (sd, "/m68hc11/m68hc11sio/reg 0x2b 0x5"); - sim_hw_parse (sd, "/m68hc11/m68hc11sio/backend stdio"); - sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11sio"); - } - if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11tim/reg") == 0) - { - /* M68hc11 Timer configuration. */ - sim_hw_parse (sd, "/m68hc11/m68hc11tim/reg 0x1b 0x5"); - sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11tim"); - } - - /* Create the SPI device. */ - if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11spi/reg") == 0) - { - sim_hw_parse (sd, "/m68hc11/m68hc11spi/reg 0x28 0x3"); - sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11spi"); - } - if (hw_tree_find_property (device_tree, "/m68hc11/pram/reg") == 0) - { - /* M68hc11 persistent ram configuration. */ - sim_hw_parse (sd, "/m68hc11/nvram/reg 0x0 256"); - sim_hw_parse (sd, "/m68hc11/nvram/file m68hc11.ram"); - sim_hw_parse (sd, "/m68hc11/nvram/mode save-modified"); - /*sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/pram"); */ - } - if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11eepr/reg") == 0) - { - sim_hw_parse (sd, "/m68hc11/m68hc11eepr/reg 0xb000 512"); - /* Connect the CPU reset to all devices. */ - sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11eepr"); - } - /* Check for/establish the a reference program image. */ if (sim_analyze_program (sd, (STATE_PROG_ARGV (sd) != NULL ? *STATE_PROG_ARGV (sd) : NULL), abfd) != SIM_RC_OK) { - sim_module_uninstall (sd); + free_state (sd); return 0; } /* Establish any remaining configuration options. */ if (sim_config (sd) != SIM_RC_OK) { - sim_module_uninstall (sd); + free_state (sd); return 0; } @@ -226,16 +363,11 @@ sim_open (SIM_OPEN_KIND kind, host_callback *callback, { /* Uninstall the modules to avoid memory leaks, file descriptor leaks, etc. */ - sim_module_uninstall (sd); + free_state (sd); return 0; } - if (abfd != NULL) - { - cpu->cpu_elf_start = bfd_get_start_address (abfd); - } - - sim_board_reset (sd); + sim_hw_configure (sd); /* Fudge our descriptor. */ return sd; @@ -253,7 +385,7 @@ sim_close (SIM_DESC sd, int quitting) sim_io_shutdown (sd); /* FIXME - free SD */ - + sim_state_free (sd); return; } @@ -302,8 +434,17 @@ sim_trace (SIM_DESC sd) void sim_info (SIM_DESC sd, int verbose) { + const char *cpu_type; + const struct bfd_arch_info *arch; + + arch = STATE_ARCHITECTURE (sd); + if (arch->arch == bfd_arch_m68hc11) + cpu_type = "68HC11"; + else + cpu_type = "68HC12"; + sim_io_eprintf (sd, "Simulator info:\n"); - sim_io_eprintf (sd, " CPU Motorola 68HC11\n"); + sim_io_eprintf (sd, " CPU Motorola %s\n", cpu_type); sim_get_info (sd, 0); sim_module_info (sd, verbose || STATE_VERBOSE_P (sd)); } @@ -312,20 +453,7 @@ SIM_RC sim_create_inferior (SIM_DESC sd, struct _bfd *abfd, char **argv, char **env) { - sim_cpu *cpu; - int i; - - cpu = STATE_CPU (sd, 0); - - if (abfd != NULL) - { - cpu->cpu_elf_start = bfd_get_start_address (abfd); - } - - /* reset all state information */ - sim_board_reset (sd); - - return SIM_RC_OK; + return sim_prepare_for_program (sd, abfd); } @@ -450,7 +578,9 @@ sim_do_command (SIM_DESC sd, char *cmd) { char *mm_cmd = "memory-map"; char *int_cmd = "interrupt"; + sim_cpu *cpu; + cpu = STATE_CPU (sd, 0); /* Commands available from GDB: */ if (sim_args_command (sd, cmd) != SIM_RC_OK) { @@ -466,4 +596,8 @@ sim_do_command (SIM_DESC sd, char *cmd) else sim_io_eprintf (sd, "Unknown command `%s'\n", cmd); } + + /* If the architecture changed, re-configure. */ + if (STATE_ARCHITECTURE (sd) != cpu->cpu_configured_arch) + sim_hw_configure (sd); } |