*/
-#include <signal.h> /* FIXME - should be machine dependant version */
#include <stdarg.h>
#include <ctype.h>
#define SIM_ADDR unsigned
-/* Structures used by the simulator, for gdb just have static structures */
-
-struct sim_state simulation = { 0 };
-
-
SIM_DESC
-sim_open (SIM_OPEN_KIND kind, struct host_callback_struct *callback, char **argv)
+sim_open (SIM_OPEN_KIND kind,
+ host_callback *callback,
+ struct _bfd *abfd,
+ char **argv)
{
- SIM_DESC sd = &simulation;
- STATE_OPEN_KIND (sd) = kind;
- STATE_MAGIC (sd) = SIM_MAGIC_NUMBER;
- STATE_CALLBACK (&simulation) = callback;
+ char *buf;
+ SIM_DESC sd = sim_state_alloc (kind, callback);
if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
return 0;
+#define TIC80_MEM_START 0x2000000
+#define TIC80_MEM_SIZE 0x100000
+
+ /* main memory */
+ asprintf (&buf, "memory region 0x%lx,0x%lx",
+ TIC80_MEM_START, TIC80_MEM_SIZE);
+ sim_do_command (sd, buf);
+ free (buf);
+ /* interrupt memory */
+ sim_do_command (sd, "memory region 0x1010000,0x1000");
+ /* some memory at zero */
+ sim_do_command (sd, "memory region 0,0x100000");
+
/* 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. */
return 0;
}
+ /* 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);
+ return 0;
+ }
+
+ /* establish any remaining configuration options */
+ if (sim_config (sd) != SIM_RC_OK)
+ {
+ sim_module_uninstall (sd);
+ return 0;
+ }
+
if (sim_post_argv_init (sd) != SIM_RC_OK)
{
/* Uninstall the modules to avoid memory leaks,
return 0;
}
- /* Initialize the main processor */
- memset (&STATE_CPU (sd, 0)->reg, 0, sizeof STATE_CPU (sd, 0)->reg);
- memset (&STATE_CPU (sd, 0)->acc, 0, sizeof STATE_CPU (sd, 0)->acc);
- memset (&STATE_CPU (sd, 0)->cr, 0, sizeof STATE_CPU (sd, 0)->cr);
- STATE_CPU (sd, 0)->is_user_mode = 0;
- memset (&STATE_CPU (sd, 0)->cia, 0, sizeof STATE_CPU (sd, 0)->cia);
- CPU_STATE (STATE_CPU (sd, 0)) = sd;
-
- /* establish the simulator configuration */
- sim_config (sd, LITTLE_ENDIAN/*d30v always big endian*/);
-
-#define TIC80_MEM_START 0x2000000
-#define TIC80_MEM_SIZE 0x100000
-
- /* external memory */
- sim_core_attach(sd,
- NULL,
- attach_raw_memory,
- access_read_write_exec,
- 0, TIC80_MEM_START, TIC80_MEM_SIZE, NULL, NULL);
- sim_core_attach(sd,
- NULL,
- attach_raw_memory,
- access_read_write_exec,
- 0, 0, TIC80_MEM_SIZE, NULL, NULL);
-
/* FIXME: for now */
return sd;
}
}
-SIM_RC
-sim_load (SIM_DESC sd, char *prog, bfd *abfd, int from_tty)
-{
- bfd *prog_bfd;
-
- prog_bfd = sim_load_file (sd, STATE_MY_NAME (sd),
- STATE_CALLBACK (sd),
- prog,
- /* pass NULL for abfd, we always open our own */
- NULL,
- STATE_OPEN_KIND (sd) == SIM_OPEN_DEBUG);
- if (prog_bfd == NULL)
- return SIM_RC_FAIL;
- sim_analyze_program (sd, prog_bfd);
- return SIM_RC_OK;
-}
-
-
-void
-sim_kill (SIM_DESC sd)
-{
-}
-
-
-int
-sim_read (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length)
-{
- return sim_core_read_buffer (sd, sim_core_write_map,
- buf, mem, length);
-}
-
-
-int
-sim_write (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length)
-{
- return sim_core_write_buffer (sd, sim_core_write_map,
- buf, mem, length);
-}
-
-
/* FIXME - these magic numbers need to be moved elsewhere */
#define SP_REGNUM 1 /* Contains address of top of stack */
#define Rn_REGNUM 31 /* Last General Purpose Register - for sim */
#define An_REGNUM A3_REGNUM /* Last Accumulator register - for sim */
-void
-sim_fetch_register (SIM_DESC sd, int regnr, unsigned char *buf)
+int
+sim_fetch_register (SIM_DESC sd, int regnr, unsigned char *buf, int length)
{
if (regnr == R0_REGNUM)
memset (buf, 0, sizeof (unsigned32));
*(unsigned64*)buf = H2T_8 (STATE_CPU (sd, 0)->acc[regnr - A0_REGNUM]);
else
sim_io_error (sd, "sim_fetch_register - unknown register nr %d", regnr);
- return;
+ return -1;
}
-void
-sim_store_register (SIM_DESC sd, int regnr, unsigned char *buf)
+int
+sim_store_register (SIM_DESC sd, int regnr, unsigned char *buf, int length)
{
if (regnr >= R0_REGNUM && regnr <= Rn_REGNUM)
STATE_CPU (sd, 0)->reg[regnr - R0_REGNUM] = T2H_4 (*(unsigned32*)buf);
STATE_CPU (sd, 0)->cia.ip = T2H_4 (*(unsigned32*)buf);
else if (regnr == NPC_REGNUM)
STATE_CPU (sd, 0)->cia.dp = T2H_4 (*(unsigned32*)buf);
- else if (regnr == A0_REGNUM && regnr <= An_REGNUM)
+ else if (regnr >= A0_REGNUM && regnr <= An_REGNUM)
STATE_CPU (sd, 0)->acc[regnr - A0_REGNUM] = T2H_8 (*(unsigned64*)buf);
else
- sim_io_error (sd, "sim_fetch_register - unknown register nr %d", regnr);
- return;
-}
-
-
-void
-sim_info (SIM_DESC sd, int verbose)
-{
+ sim_io_error (sd, "sim_store_register - unknown register nr %d", regnr);
+ return -1;
}
SIM_RC
sim_create_inferior (SIM_DESC sd,
+ struct _bfd *abfd,
char **argv,
char **envp)
{
- STATE_CPU (sd, 0)->cia.ip = STATE_START_ADDR(sd);
- STATE_CPU (sd, 0)->cia.dp = (STATE_START_ADDR(sd)
+ /* clear all registers */
+ memset (&STATE_CPU (sd, 0)->reg, 0, sizeof (STATE_CPU (sd, 0)->reg));
+ memset (&STATE_CPU (sd, 0)->acc, 0, sizeof (STATE_CPU (sd, 0)->acc));
+ memset (&STATE_CPU (sd, 0)->cr, 0, sizeof (STATE_CPU (sd, 0)->cr));
+ STATE_CPU (sd, 0)->is_user_mode = 0;
+ memset (&STATE_CPU (sd, 0)->cia, 0, sizeof (STATE_CPU (sd, 0)->cia));
+ /* initialize any modules */
+ sim_module_init (sd);
+ /* set the stack-pointer/program counter */
+ if (abfd != NULL)
+ STATE_CPU (sd, 0)->cia.ip = bfd_get_start_address (abfd);
+ else
+ STATE_CPU (sd, 0)->cia.ip = 0;
+ STATE_CPU (sd, 0)->cia.dp = (STATE_CPU (sd, 0)->cia.ip
+ sizeof (instruction_word));
STATE_CPU (sd, 0)->cr[IE_CR] |= IE_CR_IE;
STATE_CPU (sd, 0)->reg[1] = TIC80_MEM_START + TIC80_MEM_SIZE - 16;