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);
201 extern double get_time (void);
204 extern int dispatch_instruction (struct pstate *sregs);
205 extern int execute_trap (struct pstate *sregs);
206 extern int check_interrupts (struct pstate *sregs);
207 extern void init_regs (struct pstate *sregs);
210 extern int run_sim (struct pstate *sregs,
211 uint64 icount, int dis);
214 extern int get_accex (void);
215 extern void clear_accex (void);
216 extern void set_fsr (uint32 fsr);
219 extern void usage (void);
220 extern void gen_help (void);