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-rw-r--r--sim/w65/interp.c388
1 files changed, 0 insertions, 388 deletions
diff --git a/sim/w65/interp.c b/sim/w65/interp.c
deleted file mode 100644
index 36c4e32..0000000
--- a/sim/w65/interp.c
+++ /dev/null
@@ -1,388 +0,0 @@
-/* Simulator for the WDC 65816 architecture.
-
- Written by Steve Chamberlain of Cygnus Support.
- sac@cygnus.com
-
- This file is part of W65 sim
-
-
- THIS SOFTWARE IS NOT COPYRIGHTED
-
- Cygnus offers the following for use in the public domain. Cygnus
- makes no warranty with regard to the software or it's performance
- and the user accepts the software "AS IS" with all faults.
-
- CYGNUS DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD TO
- THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
-
-*/
-
-#include "config.h"
-
-#include <stdio.h>
-#include <signal.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_TIME_H
-#include <time.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <sys/param.h>
-#include "bfd.h"
-#include "callback.h"
-#include "remote-sim.h"
-#include "../../newlib/libc/sys/w65/sys/syscall.h"
-
-#include "interp.h"
-
-saved_state_type saved_state;
-
-int
-get_now ()
-{
- return time ((long *) 0);
-}
-void
-control_c (sig, code, scp, addr)
- int sig;
- int code;
- char *scp;
- char *addr;
-{
- saved_state.exception = SIGINT;
-}
-
-wai ()
-{
- saved_state.exception = SIGTRAP;
-}
-
-
-
-wdm (acc, x)
- int acc;
- int x;
-
-{
-int cycles;
- /* The x points to where the registers live, acc has code */
-
-#define R(arg) (x + arg * 2)
-unsigned R0 = R(0);
-unsigned R4 = R(4);
-unsigned R5 = R(5);
-unsigned R6 = R(6);
-unsigned R7 = R(7);
-unsigned R8 = R(8);
-unsigned char *memory = saved_state.memory;
- int a1 = fetch16 (R (4));
- switch (a1)
- {
- case SYS_write:
- {
- int file = fetch16 (R5);
- unsigned char *buf = fetch24 (R6) + memory;
- int len = fetch16 (R8);
- int res = write (file, buf, len);
- store16 (R0, res);
- break;
- }
- case 0:
- printf ("%c", acc);
- fflush (stdout);
- break;
- case 1:
- saved_state.exception = SIGTRAP;
- break;
- default:
- saved_state.exception = SIGILL;
- break;
- }
-}
-
-
-void
-sim_resume (step, insignal)
- int step;
- int insignal;
-{
- void (*prev) ();
- register unsigned char *memory;
- if (step)
- {
- saved_state.exception = SIGTRAP;
- }
- else
- {
- saved_state.exception = 0;
- }
-
-
- prev = signal (SIGINT, control_c);
- do
- {
- int x = (saved_state.p >> 4) & 1;
- int m = (saved_state.p >> 5) & 1;
- if (x == 0 && m == 0)
- {
- ifunc_X0_M0 ();
- }
- else if (x == 0 && m == 1)
- {
- ifunc_X0_M1 ();
- }
- else if (x == 1 && m == 0)
- {
- ifunc_X1_M0 ();
- }
- else if (x == 1 && m == 1)
- {
- ifunc_X1_M1 ();
- }
- }
- while (saved_state.exception == 0);
-
- signal (SIGINT, prev);
-}
-
-
-
-
-init_pointers ()
-{
- if (!saved_state.memory)
- {
- saved_state.memory = calloc (64 * 1024, NUMSEGS);
- }
-}
-
-int
-sim_write (addr, buffer, size)
- SIM_ADDR addr;
- unsigned char *buffer;
- int size;
-{
- int i;
- init_pointers ();
-
- for (i = 0; i < size; i++)
- {
- saved_state.memory[(addr + i) & MMASK] = buffer[i];
- }
- return size;
-}
-
-int
-sim_read (addr, buffer, size)
- SIM_ADDR addr;
- unsigned char *buffer;
- int size;
-{
- int i;
-
- init_pointers ();
-
- for (i = 0; i < size; i++)
- {
- buffer[i] = saved_state.memory[(addr + i) & MMASK];
- }
- return size;
-}
-
-
-
-struct
-{
- unsigned int *ptr;
- int size;
-}
-rinfo[] =
-
-{
- &saved_state.r[0], 2,
- &saved_state.r[1], 2,
- &saved_state.r[2], 2,
- &saved_state.r[3], 2,
- &saved_state.r[4], 2,
- &saved_state.r[5], 2,
- &saved_state.r[6], 2,
- &saved_state.r[7], 2,
- &saved_state.r[8], 2,
- &saved_state.r[9], 2,
- &saved_state.r[10], 2,
- &saved_state.r[11], 2,
- &saved_state.r[12], 2,
- &saved_state.r[13], 2,
- &saved_state.r[14], 2,
- &saved_state.r[15], 4,
- &saved_state.pc, 4,
- &saved_state.a, 4,
- &saved_state.x, 4,
- &saved_state.y, 4,
- &saved_state.dbr, 4,
- &saved_state.d, 4,
- &saved_state.s, 4,
- &saved_state.p, 4,
- &saved_state.ticks, 4,
- &saved_state.cycles, 4,
- &saved_state.insts, 4,
- 0
-};
-
-int
-sim_store_register (rn, value, length)
- int rn;
- unsigned char *value;
- int length;
-{
- unsigned int val;
- int i;
- val = 0;
- for (i = 0; i < rinfo[rn].size; i++)
- {
- val |= (*value++) << (i * 8);
- }
-
- *(rinfo[rn].ptr) = val;
- return -1;
-}
-
-int
-sim_fetch_register (rn, buf, length)
- int rn;
- unsigned char *buf;
- int length;
-{
- unsigned int val = *(rinfo[rn].ptr);
- int i;
-
- for (i = 0; i < rinfo[rn].size; i++)
- {
- *buf++ = val;
- val = val >> 8;
- }
- return -1;
-}
-
-
-sim_reg_size (n)
-{
- return rinfo[n].size;
-}
-int
-sim_trace ()
-{
- return 0;
-}
-
-void
-sim_stop_reason (reason, sigrc)
- enum sim_stop *reason;
- int *sigrc;
-{
- *reason = sim_stopped;
- *sigrc = saved_state.exception;
-}
-
-int
-sim_set_pc (x)
- SIM_ADDR x;
-{
- saved_state.pc = x;
- return 0;
-}
-
-
-void
-sim_info (verbose)
- int verbose;
-{
- double timetaken = (double) saved_state.ticks;
- double virttime = saved_state.cycles / 2.0e6;
-
- printf ("\n\n# instructions executed %10d\n", saved_state.insts);
- printf ("# cycles %10d\n", saved_state.cycles);
- printf ("# real time taken %10.4f\n", timetaken);
- printf ("# virtual time taken %10.4f\n", virttime);
-
- if (timetaken != 0)
- {
- printf ("# cycles/second %10d\n", (int) (saved_state.cycles / timetaken));
- printf ("# simulation ratio %10.4f\n", virttime / timetaken);
- }
-
-}
-
-
-
-void
-sim_open (kind, cb, abfd, argv)
- SIM_OPEN_KIND kind;
- host_callback *cb;
- struct _bfd *abfd;
- char **argv;
-{
-}
-
-
-
-#undef fetch8
-fetch8func (x)
-{
- if (x & ~MMASK)
- {
- saved_state.exception = SIGBUS;
- return 0;
- }
- return saved_state.memory[x];
-}
-
-fetch8 (x)
-{
-return fetch8func(x);
-}
-
-void
-sim_close (quitting)
- int quitting;
-{
- /* nothing to do */
-}
-
-int
-sim_load (prog, from_tty)
- char *prog;
- int from_tty;
-{
- /* Return nonzero so gdb will handle it. */
- return 1;
-}
-
-
-void
-sim_create_inferior (abfd, argv, env)
- struct _bfd *abfd;
- char **argv;
- char **env;
-{
- SIM_ADDR start_address;
- int pc;
- if (abfd != NULL)
- start_address = bfd_get_start_address (abfd);
- else
- start_address = 0; /*??*/
- /* ??? We assume this is a 4 byte quantity. */
- pc = start_address;
- sim_store_register (16, (unsigned char *) &pc);
-}
-
-void
-sim_set_callbacks (ptr)
-struct host_callback_struct *ptr;
-{
-
-}
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