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"
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 */
58 #define UINT64_MAX 18446744073709551615ULL
62 float64 fd
[16]; /* FPU registers */
63 #ifdef HOST_LITTLE_ENDIAN_FLOAT
72 uint32 fpq
[FPUQN
* 2];
79 uint32 fpu_pres
; /* FPU present (0 = No, 1 = Yes) */
81 uint32 psr
; /* IU registers */
87 uint32 asr17
; /* Single vector trapping */
91 uint32 trap
; /* Current trap type */
92 uint32 annul
; /* Instruction annul */
93 uint32 data
; /* Loaded data */
94 uint32 inst
; /* Current instruction */
95 uint32 asi
; /* Current ASI */
96 uint32 err_mode
; /* IU error mode */
100 uint32 bpts
[BPT_MAX
]; /* Breakpoints */
102 uint32 ltime
; /* Load interlock time */
103 uint32 hold
; /* IU hold cycles in current inst */
104 uint32 fhold
; /* FPU hold cycles in current inst */
105 uint32 icnt
; /* Instruction cycles in curr inst */
107 uint32 histlen
; /* Trace history management */
109 struct histype
*histbuf
;
110 float32 freq
; /* Simulated processor frequency */
121 uint64 tlimit
; /* Simulation time limit */
122 uint64 pwdtime
; /* Cycles in power-down mode */
123 uint64 nstore
; /* Number of load instructions */
124 uint64 nload
; /* Number of store instructions */
125 uint64 nannul
; /* Number of annuled instructions */
126 uint64 nbranch
; /* Number of branch instructions */
127 uint32 ildreg
; /* Destination of last load instruction */
128 uint64 ildtime
; /* Last time point for load dependency */
130 int rett_err
; /* IU in jmpl/restore error state (Rev.0) */
143 struct evcell
*freeq
;
162 extern void init_sim (void);
163 extern void reset (void);
164 extern void error_mode (uint32 pc
);
165 extern void sim_halt (void);
166 extern void exit_sim (void);
167 extern void init_stdio (void);
168 extern void restore_stdio (void);
169 extern int memory_read (int32 asi
, uint32 addr
, uint32
*data
,
170 int32 sz
, int32
*ws
);
171 extern int memory_write (int32 asi
, uint32 addr
, uint32
*data
,
172 int32 sz
, int32
*ws
);
173 extern int sis_memory_write (uint32 addr
,
174 const unsigned char *data
, uint32 length
);
175 extern int sis_memory_read (uint32 addr
, char *data
,
179 extern void set_regi (struct pstate
*sregs
, int32 reg
,
181 extern void get_regi (struct pstate
*sregs
, int32 reg
, char *buf
);
182 extern int exec_cmd (struct pstate
*sregs
, char *cmd
);
183 extern void reset_stat (struct pstate
*sregs
);
184 extern void show_stat (struct pstate
*sregs
);
185 extern void init_bpt (struct pstate
*sregs
);
186 extern void init_signals (void);
188 struct disassemble_info
;
189 extern void dis_mem (uint32 addr
, uint32 len
,
190 struct disassemble_info
*info
);
191 extern void event (void (*cfunc
) (), int32 arg
, uint64 delta
);
192 extern void set_int (int32 level
, void (*callback
) (), int32 arg
);
193 extern void advance_time (struct pstate
*sregs
);
194 extern uint32
now (void);
195 extern int wait_for_irq (void);
196 extern int check_bpt (struct pstate
*sregs
);
197 extern void reset_all (void);
198 extern void sys_reset (void);
199 extern void sys_halt (void);
200 extern int bfd_load (char *fname
);
203 extern int dispatch_instruction (struct pstate
*sregs
);
204 extern int execute_trap (struct pstate
*sregs
);
205 extern int check_interrupts (struct pstate
*sregs
);
206 extern void init_regs (struct pstate
*sregs
);
209 extern int run_sim (struct pstate
*sregs
,
210 uint64 icount
, int dis
);
213 extern int get_accex (void);
214 extern void clear_accex (void);
215 extern void set_fsr (uint32 fsr
);
218 extern void usage (void);
219 extern void gen_help (void);
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