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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /sim/v850/interp.c
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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Initial creation of sourceware repository
Diffstat (limited to 'sim/v850/interp.c')
-rw-r--r--sim/v850/interp.c357
1 files changed, 0 insertions, 357 deletions
diff --git a/sim/v850/interp.c b/sim/v850/interp.c
deleted file mode 100644
index d111590..0000000
--- a/sim/v850/interp.c
+++ /dev/null
@@ -1,357 +0,0 @@
-#include "sim-main.h"
-#include "sim-options.h"
-#include "v850_sim.h"
-#include "sim-assert.h"
-
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-
-#include "bfd.h"
-
-#ifndef INLINE
-#ifdef __GNUC__
-#define INLINE inline
-#else
-#define INLINE
-#endif
-#endif
-
-
-/* For compatibility */
-SIM_DESC simulator;
-
-
-
-/* v850 interrupt model */
-
-enum interrupt_type
-{
- int_reset,
- int_nmi,
- int_intov1,
- int_intp10,
- int_intp11,
- int_intp12,
- int_intp13,
- int_intcm4,
- num_int_types
-};
-
-char *interrupt_names[] = {
- "reset",
- "nmi",
- "intov1",
- "intp10",
- "intp11",
- "intp12",
- "intp13",
- "intcm4",
- NULL
-};
-
-static void
-do_interrupt (sd, data)
- SIM_DESC sd;
- void *data;
-{
- char **interrupt_name = (char**)data;
- enum interrupt_type inttype;
- inttype = (interrupt_name - STATE_WATCHPOINTS (sd)->interrupt_names);
-
- /* For a hardware reset, drop everything and jump to the start
- address */
- if (inttype == int_reset)
- {
- PC = 0;
- PSW = 0x20;
- ECR = 0;
- sim_engine_restart (sd, NULL, NULL, NULL_CIA);
- }
-
- /* Deliver an NMI when allowed */
- if (inttype == int_nmi)
- {
- if (PSW & PSW_NP)
- {
- /* We're already working on an NMI, so this one must wait
- around until the previous one is done. The processor
- ignores subsequent NMIs, so we don't need to count them.
- Just keep re-scheduling a single NMI until it manages to
- be delivered */
- if (STATE_CPU (sd, 0)->pending_nmi != NULL)
- sim_events_deschedule (sd, STATE_CPU (sd, 0)->pending_nmi);
- STATE_CPU (sd, 0)->pending_nmi =
- sim_events_schedule (sd, 1, do_interrupt, data);
- return;
- }
- else
- {
- /* NMI can be delivered. Do not deschedule pending_nmi as
- that, if still in the event queue, is a second NMI that
- needs to be delivered later. */
- FEPC = PC;
- FEPSW = PSW;
- /* Set the FECC part of the ECR. */
- ECR &= 0x0000ffff;
- ECR |= 0x10;
- PSW |= PSW_NP;
- PSW &= ~PSW_EP;
- PSW |= PSW_ID;
- PC = 0x10;
- sim_engine_restart (sd, NULL, NULL, NULL_CIA);
- }
- }
-
- /* deliver maskable interrupt when allowed */
- if (inttype > int_nmi && inttype < num_int_types)
- {
- if ((PSW & PSW_NP) || (PSW & PSW_ID))
- {
- /* Can't deliver this interrupt, reschedule it for later */
- sim_events_schedule (sd, 1, do_interrupt, data);
- return;
- }
- else
- {
- /* save context */
- EIPC = PC;
- EIPSW = PSW;
- /* Disable further interrupts. */
- PSW |= PSW_ID;
- /* Indicate that we're doing interrupt not exception processing. */
- PSW &= ~PSW_EP;
- /* Clear the EICC part of the ECR, will set below. */
- ECR &= 0xffff0000;
- switch (inttype)
- {
- case int_intov1:
- PC = 0x80;
- ECR |= 0x80;
- break;
- case int_intp10:
- PC = 0x90;
- ECR |= 0x90;
- break;
- case int_intp11:
- PC = 0xa0;
- ECR |= 0xa0;
- break;
- case int_intp12:
- PC = 0xb0;
- ECR |= 0xb0;
- break;
- case int_intp13:
- PC = 0xc0;
- ECR |= 0xc0;
- break;
- case int_intcm4:
- PC = 0xd0;
- ECR |= 0xd0;
- break;
- default:
- /* Should never be possible. */
- sim_engine_abort (sd, NULL, NULL_CIA,
- "do_interrupt - internal error - bad switch");
- break;
- }
- }
- sim_engine_restart (sd, NULL, NULL, NULL_CIA);
- }
-
- /* some other interrupt? */
- sim_engine_abort (sd, NULL, NULL_CIA,
- "do_interrupt - internal error - interrupt %d unknown",
- inttype);
-}
-
-/* These default values correspond to expected usage for the chip. */
-
-uint32 OP[4];
-
-
-SIM_DESC
-sim_open (kind, cb, abfd, argv)
- SIM_OPEN_KIND kind;
- host_callback *cb;
- struct _bfd *abfd;
- char **argv;
-{
- SIM_DESC sd = sim_state_alloc (kind, cb);
- int mach;
-
- SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
-
- /* for compatibility */
- simulator = sd;
-
- /* FIXME: should be better way of setting up interrupts */
- STATE_WATCHPOINTS (sd)->pc = &(PC);
- STATE_WATCHPOINTS (sd)->sizeof_pc = sizeof (PC);
- STATE_WATCHPOINTS (sd)->interrupt_handler = do_interrupt;
- STATE_WATCHPOINTS (sd)->interrupt_names = interrupt_names;
-
- if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK)
- return 0;
-
- /* Allocate core managed memory */
-
- /* "Mirror" the ROM addresses below 1MB. */
- sim_do_commandf (sd, "memory region 0,0x100000,0x%lx", V850_ROM_SIZE);
- /* Chunk of ram adjacent to rom */
- sim_do_commandf (sd, "memory region 0x100000,0x%lx", V850_LOW_END-0x100000);
- /* peripheral I/O region - mirror 1K across 4k (0x1000) */
- sim_do_command (sd, "memory region 0xfff000,0x1000,1024");
- /* similarly if in the internal RAM region */
- sim_do_command (sd, "memory region 0xffe000,0x1000,1024");
-
- /* 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)
- {
- /* Uninstall the modules to avoid memory leaks,
- file descriptor leaks, etc. */
- sim_module_uninstall (sd);
- 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,
- file descriptor leaks, etc. */
- sim_module_uninstall (sd);
- return 0;
- }
-
-
- /* determine the machine type */
- if (STATE_ARCHITECTURE (sd) != NULL
- && STATE_ARCHITECTURE (sd)->arch == bfd_arch_v850)
- mach = STATE_ARCHITECTURE (sd)->mach;
- else
- mach = bfd_mach_v850; /* default */
-
- /* set machine specific configuration */
- switch (mach)
- {
- case bfd_mach_v850:
- /* start-sanitize-v850e */
- case bfd_mach_v850e:
- STATE_CPU (sd, 0)->psw_mask = (PSW_NP | PSW_EP | PSW_ID | PSW_SAT
- | PSW_CY | PSW_OV | PSW_S | PSW_Z);
- break;
- case bfd_mach_v850ea:
- PSW |= PSW_US;
- STATE_CPU (sd, 0)->psw_mask = (PSW_US
- | PSW_NP | PSW_EP | PSW_ID | PSW_SAT
- | PSW_CY | PSW_OV | PSW_S | PSW_Z);
- break;
- /* end-sanitize-v850e */
- }
-
- return sd;
-}
-
-
-void
-sim_close (sd, quitting)
- SIM_DESC sd;
- int quitting;
-{
- sim_module_uninstall (sd);
-}
-
-int
-sim_stop (sd)
- SIM_DESC sd;
-{
- return 0;
-}
-
-SIM_RC
-sim_create_inferior (sd, prog_bfd, argv, env)
- SIM_DESC sd;
- struct _bfd *prog_bfd;
- char **argv;
- char **env;
-{
- memset (&State, 0, sizeof (State));
- if (prog_bfd != NULL)
- PC = bfd_get_start_address (prog_bfd);
- /* start-sanitize-v850e */
- /* For v850ea, set PSW[US] by default */
- if (STATE_ARCHITECTURE (sd) != NULL
- && STATE_ARCHITECTURE (sd)->arch == bfd_arch_v850
- && STATE_ARCHITECTURE (sd)->mach == bfd_mach_v850ea)
- PSW |= PSW_US;
- /* end-sanitize-v850e */
- return SIM_RC_OK;
-}
-
-int
-sim_fetch_register (sd, rn, memory, length)
- SIM_DESC sd;
- int rn;
- unsigned char *memory;
- int length;
-{
- *(unsigned32*)memory = H2T_4 (State.regs[rn]);
- return -1;
-}
-
-int
-sim_store_register (sd, rn, memory, length)
- SIM_DESC sd;
- int rn;
- unsigned char *memory;
- int length;
-{
- State.regs[rn] = T2H_4 (*(unsigned32*)memory);
- return -1;
-}
-
-void
-sim_do_command (sd, cmd)
- SIM_DESC sd;
- char *cmd;
-{
- char *mm_cmd = "memory-map";
- char *int_cmd = "interrupt";
-
- if (sim_args_command (sd, cmd) != SIM_RC_OK)
- {
- if (strncmp (cmd, mm_cmd, strlen (mm_cmd) == 0))
- sim_io_eprintf (sd, "`memory-map' command replaced by `sim memory'\n");
- else if (strncmp (cmd, int_cmd, strlen (int_cmd)) == 0)
- sim_io_eprintf (sd, "`interrupt' command replaced by `sim watch'\n");
- else
- sim_io_eprintf (sd, "Unknown command `%s'\n", cmd);
- }
-}