2 * This file is part of SIS.
4 * ERC32SIM, SPARC instruction simulator. Copyright (C) 1995 Jiri Gaisler,
5 * European Space Agency
7 * This program is free software; you can redistribute it and/or modify it under
8 * the terms of the GNU General Public License as published by the Free
9 * Software Foundation; either version 2 of the License, or (at your option)
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc., 675
19 * Mass Ave, Cambridge, MA 02139, USA.
24 #include "gdb/callback.h"
25 #include "gdb/remote-sim.h"
31 /* Maximum events in event queue */
34 /* Maximum # of floating point queue */
37 /* Maximum # of breakpoints */
45 /* type definitions */
47 typedef short int int16
; /* 16-bit signed int */
48 typedef unsigned short int uint16
; /* 16-bit unsigned int */
49 typedef int int32
; /* 32-bit signed int */
50 typedef unsigned int uint32
; /* 32-bit unsigned int */
51 typedef float float32
; /* 32-bit float */
52 typedef double float64
; /* 64-bit float */
54 /* FIXME: what about host compilers that don't support 64-bit ints? */
55 typedef unsigned long long uint64
; /* 64-bit unsigned int */
56 typedef long long int64
; /* 64-bit signed int */
60 float64 fd
[16]; /* FPU registers */
61 #ifdef HOST_LITTLE_ENDIAN_FLOAT
70 uint32 fpq
[FPUQN
* 2];
77 uint32 fpu_pres
; /* FPU present (0 = No, 1 = Yes) */
79 uint32 psr
; /* IU registers */
85 uint32 asr17
; /* Single vector trapping */
89 uint32 trap
; /* Current trap type */
90 uint32 annul
; /* Instruction annul */
91 uint32 data
; /* Loaded data */
92 uint32 inst
; /* Current instruction */
93 uint32 asi
; /* Current ASI */
94 uint32 err_mode
; /* IU error mode */
98 uint32 bpts
[BPT_MAX
]; /* Breakpoints */
100 uint32 ltime
; /* Load interlock time */
101 uint32 hold
; /* IU hold cycles in current inst */
102 uint32 fhold
; /* FPU hold cycles in current inst */
103 uint32 icnt
; /* Instruction cycles in curr inst */
105 uint32 histlen
; /* Trace history management */
107 struct histype
*histbuf
;
108 float32 freq
; /* Simulated processor frequency */
119 uint32 tlimit
; /* Simulation time limit */
120 uint32 pwdtime
; /* Cycles in power-down mode */
121 uint32 nstore
; /* Number of load instructions */
122 uint32 nload
; /* Number of store instructions */
123 uint32 nannul
; /* Number of annuled instructions */
124 uint32 nbranch
; /* Number of branch instructions */
125 uint32 ildreg
; /* Destination of last load instruction */
126 uint32 ildtime
; /* Last time point for load dependency */
128 int rett_err
; /* IU in jmpl/restore error state (Rev.0) */
141 struct evcell
*freeq
;
160 extern void init_sim
PARAMS ((void));
161 extern void reset
PARAMS ((void));
162 extern void error_mode
PARAMS ((uint32 pc
));
163 extern void sim_halt
PARAMS ((void));
164 extern void exit_sim
PARAMS ((void));
165 extern void init_stdio
PARAMS ((void));
166 extern void restore_stdio
PARAMS ((void));
167 extern int memory_read
PARAMS ((int32 asi
, uint32 addr
, uint32
*data
,
168 int32 sz
, int32
*ws
));
169 extern int memory_write
PARAMS ((int32 asi
, uint32 addr
, uint32
*data
,
170 int32 sz
, int32
*ws
));
171 extern int sis_memory_write
PARAMS ((uint32 addr
, char *data
,
173 extern int sis_memory_read
PARAMS ((uint32 addr
, char *data
,
177 extern void set_regi
PARAMS ((struct pstate
*sregs
, int32 reg
,
179 extern void get_regi
PARAMS ((struct pstate
*sregs
, int32 reg
, char *buf
));
180 extern int exec_cmd
PARAMS ((struct pstate
*sregs
, char *cmd
));
181 extern void reset_stat
PARAMS ((struct pstate
*sregs
));
182 extern void show_stat
PARAMS ((struct pstate
*sregs
));
183 extern void init_bpt
PARAMS ((struct pstate
*sregs
));
184 extern void init_signals
PARAMS ((void));
186 struct disassemble_info
;
187 extern void dis_mem
PARAMS ((uint32 addr
, uint32 len
,
188 struct disassemble_info
*info
));
189 extern void event
PARAMS ((void (*cfunc
) (), int32 arg
, uint32 delta
));
190 extern void set_int
PARAMS ((int32 level
, void (*callback
) (), int32 arg
));
191 extern void advance_time
PARAMS ((struct pstate
*sregs
));
192 extern uint32 now
PARAMS ((void));
193 extern int wait_for_irq
PARAMS ((void));
194 extern int check_bpt
PARAMS ((struct pstate
*sregs
));
195 extern void reset_all
PARAMS ((void));
196 extern void sys_reset
PARAMS ((void));
197 extern void sys_halt
PARAMS ((void));
198 extern int bfd_load
PARAMS ((char *fname
));
201 extern int dispatch_instruction
PARAMS ((struct pstate
*sregs
));
202 extern int execute_trap
PARAMS ((struct pstate
*sregs
));
203 extern int check_interrupts
PARAMS ((struct pstate
*sregs
));
204 extern void init_regs
PARAMS ((struct pstate
*sregs
));
207 extern int run_sim
PARAMS ((struct pstate
*sregs
,
208 unsigned int icount
, int dis
));
211 extern int get_accex
PARAMS ((void));
212 extern void clear_accex
PARAMS ((void));
213 extern void set_fsr
PARAMS ((uint32 fsr
));
216 extern void usage
PARAMS ((void));
217 extern void gen_help
PARAMS ((void));
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