diff options
Diffstat (limited to 'sim/i960/sim-if.c')
| -rw-r--r-- | sim/i960/sim-if.c | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/sim/i960/sim-if.c b/sim/i960/sim-if.c deleted file mode 100644 index 6179739b3c2..00000000000 --- a/sim/i960/sim-if.c +++ /dev/null @@ -1,311 +0,0 @@ -/* Main simulator entry points for the i960. - Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc. - Contributed by Cygnus Support. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License along -with this program; if not, write to the Free Software Foundation, Inc., -59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "libiberty.h" -#include "bfd.h" -#include "sim-main.h" -#ifdef HAVE_STDLIB_H -#include <stdlib.h> -#endif -#include "sim-options.h" -#include "dis-asm.h" - -static void free_state (SIM_DESC); - -/* Since we don't build the cgen-opcode table, we use the old - disassembler. */ -static CGEN_DISASSEMBLER i960_disassemble_insn; - -/* Records simulator descriptor so utilities like i960_dump_regs can be - called from gdb. */ -SIM_DESC current_state; - -/* 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_cpu_free_all (sd); - sim_state_free (sd); -} - -/* Create an instance of the simulator. */ - -SIM_DESC -sim_open (kind, callback, abfd, argv) - SIM_OPEN_KIND kind; - host_callback *callback; - struct _bfd *abfd; - char **argv; -{ - char c; - int i; - SIM_DESC sd = sim_state_alloc (kind, callback); - - /* The cpu data is kept in a separately allocated chunk of memory. */ - if (sim_cpu_alloc_all (sd, 1, cgen_cpu_max_extra_bytes ()) != SIM_RC_OK) - { - free_state (sd); - return 0; - } - -#if 0 /* FIXME: pc is in mach-specific struct */ - /* FIXME: watchpoints code shouldn't need this */ - { - SIM_CPU *current_cpu = STATE_CPU (sd, 0); - STATE_WATCHPOINTS (sd)->pc = &(PC); - STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC); - } -#endif - - if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) - { - free_state (sd); - return 0; - } - -#if 0 /* FIXME: 'twould be nice if we could do this */ - /* These options override any module options. - Obviously ambiguity should be avoided, however the caller may wish to - augment the meaning of an option. */ - if (extra_options != NULL) - sim_add_option_table (sd, extra_options); -#endif - - /* 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 - print_filtered. */ - if (sim_parse_args (sd, argv) != SIM_RC_OK) - { - free_state (sd); - return 0; - } - - /* Allocate a handler for the control registers and other devices - if no memory for that range has been allocated by the user. - All are allocated in one chunk to keep things from being - unnecessarily complicated. */ - if (sim_core_read_buffer (sd, NULL, read_map, &c, I960_DEVICE_ADDR, 1) == 0) - sim_core_attach (sd, NULL, - 0 /*level*/, - access_read_write, - 0 /*space ???*/, - I960_DEVICE_ADDR, I960_DEVICE_LEN /*nr_bytes*/, - 0 /*modulo*/, - &i960_devices, - NULL /*buffer*/); - - /* Allocate core managed memory if none specified by user. - Use address 4 here in case the user wanted address 0 unmapped. */ - if (sim_core_read_buffer (sd, NULL, read_map, &c, 4, 1) == 0) - /* ??? wilson */ - sim_do_commandf (sd, "memory region 0x%lx,0x%lx", I960_DEFAULT_MEM_START, - I960_DEFAULT_MEM_SIZE); - - /* check for/establish the reference program image */ - if (sim_analyze_program (sd, - (STATE_PROG_ARGV (sd) != NULL - ? *STATE_PROG_ARGV (sd) - : NULL), - abfd) != SIM_RC_OK) - { - free_state (sd); - return 0; - } - - /* Establish any remaining configuration options. */ - if (sim_config (sd) != SIM_RC_OK) - { - free_state (sd); - return 0; - } - - if (sim_post_argv_init (sd) != SIM_RC_OK) - { - free_state (sd); - return 0; - } - - /* Open a copy of the cpu descriptor table. */ - { - CGEN_CPU_DESC cd = i960_cgen_cpu_open_1 (STATE_ARCHITECTURE (sd)->printable_name, - CGEN_ENDIAN_LITTLE); - for (i = 0; i < MAX_NR_PROCESSORS; ++i) - { - SIM_CPU *cpu = STATE_CPU (sd, i); - CPU_CPU_DESC (cpu) = cd; - CPU_DISASSEMBLER (cpu) = i960_disassemble_insn; - } - } - - /* Initialize various cgen things not done by common framework. - Must be done after i960_cgen_cpu_open. */ - cgen_init (sd); - - /* Store in a global so things like i960_dump_regs can be invoked - from the gdb command line. */ - current_state = sd; - - return sd; -} - -void -sim_close (sd, quitting) - SIM_DESC sd; - int quitting; -{ - i960_cgen_cpu_close (CPU_CPU_DESC (STATE_CPU (sd, 0))); - sim_module_uninstall (sd); -} - -SIM_RC -sim_create_inferior (sd, abfd, argv, envp) - SIM_DESC sd; - struct _bfd *abfd; - char **argv; - char **envp; -{ - SIM_CPU *current_cpu = STATE_CPU (sd, 0); - SIM_ADDR addr; - - if (abfd != NULL) - addr = bfd_get_start_address (abfd); - else - addr = 0; - sim_pc_set (current_cpu, addr); - -#if 0 - STATE_ARGV (sd) = sim_copy_argv (argv); - STATE_ENVP (sd) = sim_copy_argv (envp); -#endif - - return SIM_RC_OK; -} - -#if 0 -int -sim_stop (SIM_DESC sd) -{ - switch (STATE_ARCHITECTURE (sd)->mach) - { - case bfd_mach_i960_ka_sa : - return i960base_engine_stop (sd, NULL, NULL_CIA, sim_stopped, SIM_SIGINT); - default : - abort (); - } -} - -/* This isn't part of the official interface. - This is just a good place to put this for now. */ - -void -sim_sync_stop (SIM_DESC sd, SIM_CPU *cpu, PCADDR pc, enum sim_stop reason, int sigrc) -{ - switch (STATE_ARCHITECTURE (sd)->mach) - { - case bfd_mach_i960_ka_sa : - (void) i960base_engine_stop (sd, cpu, pc, reason, sigrc); - break; - default : - abort (); - } -} - -void -sim_resume (sd, step, siggnal) - SIM_DESC sd; - int step, siggnal; -{ - sim_module_resume (sd); - - switch (STATE_ARCHITECTURE (sd)->mach) - { - case bfd_mach_i960_ka_sa : - i960base_engine_run (sd, step, siggnal); - break; - default : - abort (); - } - - sim_module_suspend (sd); -} -#endif - -/* The contents of BUF are in target byte order. */ - -int -sim_fetch_register (sd, rn, buf, length) - SIM_DESC sd; - int rn; - unsigned char *buf; - int length; -{ - SIM_CPU *cpu = STATE_CPU (sd, 0); - - return (* CPU_REG_FETCH (cpu)) (cpu, rn, buf, length); -} - -/* The contents of BUF are in target byte order. */ - -int -sim_store_register (sd, rn, buf, length) - SIM_DESC sd; - int rn; - unsigned char *buf; - int length; -{ - SIM_CPU *cpu = STATE_CPU (sd, 0); - - return (* CPU_REG_STORE (cpu)) (cpu, rn, buf, length); -} - -void -sim_do_command (sd, cmd) - SIM_DESC sd; - char *cmd; -{ - if (sim_args_command (sd, cmd) != SIM_RC_OK) - sim_io_eprintf (sd, "Unknown command `%s'\n", cmd); -} - -/* Disassemble an instruction. */ - -static void -i960_disassemble_insn (SIM_CPU *cpu, const CGEN_INSN *insn, - const ARGBUF *abuf, IADDR pc, char *buf) -{ - struct disassemble_info disasm_info; - SFILE sfile; - SIM_DESC sd = CPU_STATE (cpu); - int insn_length = CGEN_INSN_BITSIZE (insn) / 8; - - sfile.buffer = sfile.current = buf; - INIT_DISASSEMBLE_INFO (disasm_info, (FILE *) &sfile, - (fprintf_ftype) sim_disasm_sprintf); - disasm_info.endian = - (bfd_big_endian (STATE_PROG_BFD (sd)) ? BFD_ENDIAN_BIG - : bfd_little_endian (STATE_PROG_BFD (sd)) ? BFD_ENDIAN_LITTLE - : BFD_ENDIAN_UNKNOWN); - disasm_info.read_memory_func = sim_disasm_read_memory; - disasm_info.memory_error_func = sim_disasm_perror_memory; - disasm_info.application_data = (PTR) cpu; - - print_insn_i960 (pc, &disasm_info); -} |