1 /* Copyright (C) 1995-2022 Free Software Foundation, Inc.
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; either version 3 of the License, or
6 (at your option) any later version.
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 #include "sim/callback.h"
19 #include <sim-config.h>
23 #if HOST_BYTE_ORDER == BIG_ENDIAN
24 #define HOST_BIG_ENDIAN
27 #define HOST_LITTLE_ENDIAN
33 /* Maximum events in event queue */
36 /* Maximum # of floating point queue */
39 /* Maximum # of breakpoints */
47 /* type definitions */
49 typedef float float32
; /* 32-bit float */
50 typedef double float64
; /* 64-bit float */
54 float64 fd
[16]; /* FPU registers */
55 #ifdef HOST_LITTLE_ENDIAN
64 uint32_t fpq
[FPUQN
* 2];
71 uint32_t fpu_pres
; /* FPU present (0 = No, 1 = Yes) */
73 uint32_t psr
; /* IU registers */
79 uint32_t asr17
; /* Single vector trapping */
83 uint32_t trap
; /* Current trap type */
84 uint32_t annul
; /* Instruction annul */
85 uint32_t data
; /* Loaded data */
86 uint32_t inst
; /* Current instruction */
87 uint32_t asi
; /* Current ASI */
88 uint32_t err_mode
; /* IU error mode */
92 uint32_t bpts
[BPT_MAX
]; /* Breakpoints */
94 uint32_t ltime
; /* Load interlock time */
95 uint32_t hold
; /* IU hold cycles in current inst */
96 uint32_t fhold
; /* FPU hold cycles in current inst */
97 uint32_t icnt
; /* Instruction cycles in curr inst */
99 uint32_t histlen
; /* Trace history management */
101 struct histype
*histbuf
;
102 float32 freq
; /* Simulated processor frequency */
113 uint64_t tlimit
; /* Simulation time limit */
114 uint64_t pwdtime
; /* Cycles in power-down mode */
115 uint64_t nstore
; /* Number of load instructions */
116 uint64_t nload
; /* Number of store instructions */
117 uint64_t nannul
; /* Number of annuled instructions */
118 uint64_t nbranch
; /* Number of branch instructions */
119 uint32_t ildreg
; /* Destination of last load instruction */
120 uint64_t ildtime
; /* Last time point for load dependency */
122 int rett_err
; /* IU in jmpl/restore error state (Rev.0) */
135 struct evcell
*freeq
;
154 extern void init_sim (void);
155 extern void reset (void);
156 extern void error_mode (uint32_t pc
);
157 extern void sim_halt (void);
158 extern void exit_sim (void);
159 extern void init_stdio (void);
160 extern void restore_stdio (void);
161 extern int memory_iread (uint32_t addr
, uint32_t *data
, uint32_t *ws
);
162 extern int memory_read (int32_t asi
, uint32_t addr
, void *data
,
163 int32_t sz
, int32_t *ws
);
164 extern int memory_write (int32_t asi
, uint32_t addr
, uint32_t *data
,
165 int32_t sz
, int32_t *ws
);
166 extern int sis_memory_write (uint32_t addr
,
167 const void *data
, uint32_t length
);
168 extern int sis_memory_read (uint32_t addr
, void *data
,
170 extern void boot_init (void);
173 extern struct pstate sregs
;
174 extern void set_regi (struct pstate
*sregs
, int32_t reg
,
176 extern void get_regi (struct pstate
*sregs
, int32_t reg
, unsigned char *buf
);
177 extern int exec_cmd (struct pstate
*sregs
, const char *cmd
);
178 extern void reset_stat (struct pstate
*sregs
);
179 extern void show_stat (struct pstate
*sregs
);
180 extern void init_bpt (struct pstate
*sregs
);
181 extern void init_signals (void);
183 struct disassemble_info
;
184 extern void dis_mem (uint32_t addr
, uint32_t len
,
185 struct disassemble_info
*info
);
186 extern void event (void (*cfunc
) (), int32_t arg
, uint64_t delta
);
187 extern void set_int (int32_t level
, void (*callback
) (), int32_t arg
);
188 extern void advance_time (struct pstate
*sregs
);
189 extern uint32_t now (void);
190 extern int wait_for_irq (void);
191 extern int check_bpt (struct pstate
*sregs
);
192 extern void reset_all (void);
193 extern void sys_reset (void);
194 extern void sys_halt (void);
195 extern int bfd_load (const char *fname
);
196 extern double get_time (void);
199 extern int dispatch_instruction (struct pstate
*sregs
);
200 extern int execute_trap (struct pstate
*sregs
);
201 extern int check_interrupts (struct pstate
*sregs
);
202 extern void init_regs (struct pstate
*sregs
);
205 extern int run_sim (struct pstate
*sregs
,
206 uint64_t icount
, int dis
);
207 extern int fprintf_styled (void *stream
, enum disassembler_style style
,
208 const char *fmt
, ...) ATTRIBUTE_PRINTF (3, 4);
211 extern int get_accex (void);
212 extern void clear_accex (void);
213 extern void set_fsr (uint32_t fsr
);
216 extern void usage (void);
217 extern void gen_help (void);