#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);
static CGEN_DISASSEMBLER i960_disassemble_insn;
SIM_DESC current_state;
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);
}
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);
if (sim_cpu_alloc_all (sd, 1, cgen_cpu_max_extra_bytes ()) != SIM_RC_OK)
{
free_state (sd);
return 0;
}
#if 0
{
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
if (extra_options != NULL)
sim_add_option_table (sd, extra_options);
#endif
if (sim_parse_args (sd, argv) != SIM_RC_OK)
{
free_state (sd);
return 0;
}
if (sim_core_read_buffer (sd, NULL, read_map, &c, I960_DEVICE_ADDR, 1) == 0)
sim_core_attach (sd, NULL,
0 ,
access_read_write,
0 ,
I960_DEVICE_ADDR, I960_DEVICE_LEN ,
0 ,
&i960_devices,
NULL );
if (sim_core_read_buffer (sd, NULL, read_map, &c, 4, 1) == 0)
sim_do_commandf (sd, "memory region 0x%lx,0x%lx", I960_DEFAULT_MEM_START,
I960_DEFAULT_MEM_SIZE);
if (sim_analyze_program (sd,
(STATE_PROG_ARGV (sd) != NULL
? *STATE_PROG_ARGV (sd)
: NULL),
abfd) != SIM_RC_OK)
{
free_state (sd);
return 0;
}
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;
}
{
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;
}
}
cgen_init (sd);
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 ();
}
}
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
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);
}
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);
}
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);
}