1 /* gdb->simulator interface.
2 Copyright (C) 1992, 1993, 1994, 1997 Free Software Foundation, Inc.
4 This file is part of Z8KSIM
6 Z8KSIM is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 Z8KSIM is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with Z8KZIM; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 #include "gdb/callback.h"
26 #include "gdb/remote-sim.h"
32 host_callback
*z8k_callback
;
34 static SIM_OPEN_KIND sim_kind
;
45 sim_store_register (sd
, regno
, value
, length
)
51 /* FIXME: Review the computation of regval. */
52 int regval
= (value
[0] << 24) | (value
[1] << 16) | (value
[2] << 8) | value
[3];
54 tm_store_register (regno
, regval
);
59 sim_fetch_register (sd
, regno
, buf
, length
)
65 tm_fetch_register (regno
, buf
);
70 sim_write (sd
, where
, what
, howmuch
)
78 for (i
= 0; i
< howmuch
; i
++)
79 tm_write_byte (where
+ i
, what
[i
]);
84 sim_read (sd
, where
, what
, howmuch
)
92 for (i
= 0; i
< howmuch
; i
++)
93 what
[i
] = tm_read_byte (where
+ i
);
98 control_c (sig
, code
, scp
, addr
)
104 tm_exception (SIM_INTERRUPT
);
111 tm_exception (SIM_INTERRUPT
);
116 sim_resume (sd
, step
, sig
)
123 prev
= signal (SIGINT
, control_c
);
125 signal (SIGINT
, prev
);
129 sim_stop_reason (sd
, reason
, sigrc
)
131 enum sim_stop
*reason
;
134 switch (tm_signal ())
148 case SIM_SINGLE_STEP
:
151 case SIM_BAD_SYSCALL
:
161 *sigrc
= x
.regs
[2].word
& 255;
162 *reason
= sim_exited
;
168 *reason
= sim_stopped
;
172 sim_info (sd
, verbose
)
183 sim_open (kind
, cb
, abfd
, argv
)
189 /* FIXME: The code in sim_load that determines the exact z8k arch
190 should be moved to here */
196 /* fudge our descriptor for now */
201 sim_close (sd
, quitting
)
209 sim_load (sd
, prog
, abfd
, from_tty
)
215 extern bfd
*sim_load_file (); /* ??? Don't know where this should live. */
218 /* FIXME: The code determining the type of z9k processor should be
219 moved from here to sim_open. */
221 prog_bfd
= sim_load_file (sd
, myname
, z8k_callback
, prog
, abfd
,
222 sim_kind
== SIM_OPEN_DEBUG
,
224 if (prog_bfd
== NULL
)
226 if (bfd_get_mach (prog_bfd
) == bfd_mach_z8001
)
228 extern int sim_z8001_mode
;
231 /* Close the bfd if we opened it. */
233 bfd_close (prog_bfd
);
238 sim_create_inferior (sd
, abfd
, argv
, env
)
245 tm_store_register (REG_PC
, bfd_get_start_address (abfd
));
247 tm_store_register (REG_PC
, 0);
252 sim_do_command (sd
, cmd
)
259 sim_set_callbacks (ptr
)
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