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 3 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, see <http://www.gnu.org/licenses/>.
24 #include "gdb/callback.h"
25 #include "gdb/remote-sim.h"
26 #include <sim-config.h>
29 #if WITH_HOST_BYTE_ORDER == BIG_ENDIAN
30 #define HOST_BIG_ENDIAN
32 #define HOST_LITTLE_ENDIAN
37 /* Maximum events in event queue */
40 /* Maximum # of floating point queue */
43 /* Maximum # of breakpoints */
51 /* type definitions */
53 typedef short int int16
; /* 16-bit signed int */
54 typedef unsigned short int uint16
; /* 16-bit unsigned int */
55 typedef int int32
; /* 32-bit signed int */
56 typedef unsigned int uint32
; /* 32-bit unsigned int */
57 typedef float float32
; /* 32-bit float */
58 typedef double float64
; /* 64-bit float */
60 typedef uint64_t uint64
; /* 64-bit unsigned int */
61 typedef int64_t int64
; /* 64-bit signed int */
65 float64 fd
[16]; /* FPU registers */
66 #ifdef HOST_LITTLE_ENDIAN
75 uint32 fpq
[FPUQN
* 2];
82 uint32 fpu_pres
; /* FPU present (0 = No, 1 = Yes) */
84 uint32 psr
; /* IU registers */
90 uint32 asr17
; /* Single vector trapping */
94 uint32 trap
; /* Current trap type */
95 uint32 annul
; /* Instruction annul */
96 uint32 data
; /* Loaded data */
97 uint32 inst
; /* Current instruction */
98 uint32 asi
; /* Current ASI */
99 uint32 err_mode
; /* IU error mode */
103 uint32 bpts
[BPT_MAX
]; /* Breakpoints */
105 uint32 ltime
; /* Load interlock time */
106 uint32 hold
; /* IU hold cycles in current inst */
107 uint32 fhold
; /* FPU hold cycles in current inst */
108 uint32 icnt
; /* Instruction cycles in curr inst */
110 uint32 histlen
; /* Trace history management */
112 struct histype
*histbuf
;
113 float32 freq
; /* Simulated processor frequency */
124 uint64 tlimit
; /* Simulation time limit */
125 uint64 pwdtime
; /* Cycles in power-down mode */
126 uint64 nstore
; /* Number of load instructions */
127 uint64 nload
; /* Number of store instructions */
128 uint64 nannul
; /* Number of annuled instructions */
129 uint64 nbranch
; /* Number of branch instructions */
130 uint32 ildreg
; /* Destination of last load instruction */
131 uint64 ildtime
; /* Last time point for load dependency */
133 int rett_err
; /* IU in jmpl/restore error state (Rev.0) */
146 struct evcell
*freeq
;
165 extern void init_sim (void);
166 extern void reset (void);
167 extern void error_mode (uint32 pc
);
168 extern void sim_halt (void);
169 extern void exit_sim (void);
170 extern void init_stdio (void);
171 extern void restore_stdio (void);
172 extern int memory_iread (uint32 addr
, uint32
*data
, int32
*ws
);
173 extern int memory_read (int32 asi
, uint32 addr
, uint32
*data
,
174 int32 sz
, int32
*ws
);
175 extern int memory_write (int32 asi
, uint32 addr
, uint32
*data
,
176 int32 sz
, int32
*ws
);
177 extern int sis_memory_write (uint32 addr
,
178 const unsigned char *data
, uint32 length
);
179 extern int sis_memory_read (uint32 addr
, char *data
,
183 extern struct pstate sregs
;
184 extern void set_regi (struct pstate
*sregs
, int32 reg
,
186 extern void get_regi (struct pstate
*sregs
, int32 reg
, char *buf
);
187 extern int exec_cmd (struct pstate
*sregs
, const char *cmd
);
188 extern void reset_stat (struct pstate
*sregs
);
189 extern void show_stat (struct pstate
*sregs
);
190 extern void init_bpt (struct pstate
*sregs
);
191 extern void init_signals (void);
193 struct disassemble_info
;
194 extern void dis_mem (uint32 addr
, uint32 len
,
195 struct disassemble_info
*info
);
196 extern void event (void (*cfunc
) (), int32 arg
, uint64 delta
);
197 extern void set_int (int32 level
, void (*callback
) (), int32 arg
);
198 extern void advance_time (struct pstate
*sregs
);
199 extern uint32
now (void);
200 extern int wait_for_irq (void);
201 extern int check_bpt (struct pstate
*sregs
);
202 extern void reset_all (void);
203 extern void sys_reset (void);
204 extern void sys_halt (void);
205 extern int bfd_load (const char *fname
);
206 extern double get_time (void);
209 extern int dispatch_instruction (struct pstate
*sregs
);
210 extern int execute_trap (struct pstate
*sregs
);
211 extern int check_interrupts (struct pstate
*sregs
);
212 extern void init_regs (struct pstate
*sregs
);
215 extern int run_sim (struct pstate
*sregs
,
216 uint64 icount
, int dis
);
219 extern int get_accex (void);
220 extern void clear_accex (void);
221 extern void set_fsr (uint32 fsr
);
224 extern void usage (void);
225 extern void gen_help (void);
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