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3666a048 | 1 | /* Copyright (C) 1995-2021 Free Software Foundation, Inc. |
17d88f73 JB |
2 | |
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. | |
7 | ||
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. | |
12 | ||
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/>. */ | |
c906108c SS |
15 | |
16 | #include "ansidecl.h" | |
df68e12b MF |
17 | #include "sim/callback.h" |
18 | #include "sim/sim.h" | |
9c5f41df | 19 | #include <sim-config.h> |
638fcdad JG |
20 | #include <stdint.h> |
21 | ||
0cb8d851 | 22 | #if HOST_BYTE_ORDER == BIG_ENDIAN |
9c5f41df | 23 | #define HOST_BIG_ENDIAN |
d3e9b40a | 24 | #define EBT 0 |
9c5f41df JG |
25 | #else |
26 | #define HOST_LITTLE_ENDIAN | |
d3e9b40a | 27 | #define EBT 3 |
9c5f41df | 28 | #endif |
c906108c SS |
29 | |
30 | #define I_ACC_EXC 1 | |
31 | ||
32 | /* Maximum events in event queue */ | |
33 | #define EVENT_MAX 256 | |
34 | ||
35 | /* Maximum # of floating point queue */ | |
36 | #define FPUQN 1 | |
37 | ||
38 | /* Maximum # of breakpoints */ | |
39 | #define BPT_MAX 256 | |
40 | ||
41 | struct histype { | |
42 | unsigned addr; | |
43 | unsigned time; | |
44 | }; | |
45 | ||
46 | /* type definitions */ | |
47 | ||
48 | typedef short int int16; /* 16-bit signed int */ | |
49 | typedef unsigned short int uint16; /* 16-bit unsigned int */ | |
50 | typedef int int32; /* 32-bit signed int */ | |
51 | typedef unsigned int uint32; /* 32-bit unsigned int */ | |
52 | typedef float float32; /* 32-bit float */ | |
53 | typedef double float64; /* 64-bit float */ | |
54 | ||
638fcdad JG |
55 | typedef uint64_t uint64; /* 64-bit unsigned int */ |
56 | typedef int64_t int64; /* 64-bit signed int */ | |
c906108c SS |
57 | |
58 | struct pstate { | |
59 | ||
60 | float64 fd[16]; /* FPU registers */ | |
9c5f41df | 61 | #ifdef HOST_LITTLE_ENDIAN |
c906108c SS |
62 | float32 fs[32]; |
63 | float32 *fdp; | |
64 | #else | |
65 | float32 *fs; | |
66 | #endif | |
67 | int32 *fsi; | |
68 | uint32 fsr; | |
69 | int32 fpstate; | |
70 | uint32 fpq[FPUQN * 2]; | |
71 | uint32 fpqn; | |
72 | uint32 ftime; | |
73 | uint32 flrd; | |
74 | uint32 frd; | |
75 | uint32 frs1; | |
76 | uint32 frs2; | |
77 | uint32 fpu_pres; /* FPU present (0 = No, 1 = Yes) */ | |
78 | ||
79 | uint32 psr; /* IU registers */ | |
80 | uint32 tbr; | |
81 | uint32 wim; | |
82 | uint32 g[8]; | |
83 | uint32 r[128]; | |
84 | uint32 y; | |
85 | uint32 asr17; /* Single vector trapping */ | |
86 | uint32 pc, npc; | |
87 | ||
88 | ||
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 */ | |
95 | uint32 breakpoint; | |
96 | uint32 bptnum; | |
97 | uint32 bphit; | |
98 | uint32 bpts[BPT_MAX]; /* Breakpoints */ | |
99 | ||
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 */ | |
104 | ||
105 | uint32 histlen; /* Trace history management */ | |
106 | uint32 histind; | |
107 | struct histype *histbuf; | |
108 | float32 freq; /* Simulated processor frequency */ | |
109 | ||
110 | ||
96d67095 | 111 | double tottime; |
94110024 JS |
112 | uint64 ninst; |
113 | uint64 fholdt; | |
114 | uint64 holdt; | |
115 | uint64 icntt; | |
116 | uint64 finst; | |
117 | uint64 simstart; | |
96d67095 | 118 | double starttime; |
94110024 JS |
119 | uint64 tlimit; /* Simulation time limit */ |
120 | uint64 pwdtime; /* Cycles in power-down mode */ | |
121 | uint64 nstore; /* Number of load instructions */ | |
122 | uint64 nload; /* Number of store instructions */ | |
123 | uint64 nannul; /* Number of annuled instructions */ | |
124 | uint64 nbranch; /* Number of branch instructions */ | |
c906108c | 125 | uint32 ildreg; /* Destination of last load instruction */ |
94110024 | 126 | uint64 ildtime; /* Last time point for load dependency */ |
c906108c SS |
127 | |
128 | int rett_err; /* IU in jmpl/restore error state (Rev.0) */ | |
129 | int jmpltime; | |
130 | }; | |
131 | ||
132 | struct evcell { | |
133 | void (*cfunc) (); | |
134 | int32 arg; | |
94110024 | 135 | uint64 time; |
c906108c SS |
136 | struct evcell *nxt; |
137 | }; | |
138 | ||
139 | struct estate { | |
140 | struct evcell eq; | |
141 | struct evcell *freeq; | |
94110024 | 142 | uint64 simtime; |
c906108c SS |
143 | }; |
144 | ||
145 | struct irqcell { | |
146 | void (*callback) (); | |
147 | int32 arg; | |
148 | }; | |
149 | ||
150 | ||
151 | #define OK 0 | |
152 | #define TIME_OUT 1 | |
153 | #define BPT_HIT 2 | |
154 | #define ERROR 3 | |
155 | #define CTRL_C 4 | |
156 | ||
157 | /* Prototypes */ | |
158 | ||
159 | /* erc32.c */ | |
bdca5ee4 TT |
160 | extern void init_sim (void); |
161 | extern void reset (void); | |
162 | extern void error_mode (uint32 pc); | |
163 | extern void sim_halt (void); | |
164 | extern void exit_sim (void); | |
165 | extern void init_stdio (void); | |
166 | extern void restore_stdio (void); | |
102b920e | 167 | extern int memory_iread (uint32 addr, uint32 *data, int32 *ws); |
bdca5ee4 TT |
168 | extern int memory_read (int32 asi, uint32 addr, uint32 *data, |
169 | int32 sz, int32 *ws); | |
170 | extern int memory_write (int32 asi, uint32 addr, uint32 *data, | |
171 | int32 sz, int32 *ws); | |
172 | extern int sis_memory_write (uint32 addr, | |
173 | const unsigned char *data, uint32 length); | |
174 | extern int sis_memory_read (uint32 addr, char *data, | |
175 | uint32 length); | |
c906108c SS |
176 | |
177 | /* func.c */ | |
102b920e | 178 | extern struct pstate sregs; |
bdca5ee4 TT |
179 | extern void set_regi (struct pstate *sregs, int32 reg, |
180 | uint32 rval); | |
181 | extern void get_regi (struct pstate *sregs, int32 reg, char *buf); | |
510d2751 | 182 | extern int exec_cmd (struct pstate *sregs, const char *cmd); |
bdca5ee4 TT |
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); | |
c906108c SS |
187 | |
188 | struct disassemble_info; | |
bdca5ee4 TT |
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); | |
510d2751 | 200 | extern int bfd_load (const char *fname); |
96d67095 | 201 | extern double get_time (void); |
c906108c SS |
202 | |
203 | /* exec.c */ | |
bdca5ee4 TT |
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); | |
c906108c SS |
208 | |
209 | /* interf.c */ | |
bdca5ee4 TT |
210 | extern int run_sim (struct pstate *sregs, |
211 | uint64 icount, int dis); | |
c906108c SS |
212 | |
213 | /* float.c */ | |
bdca5ee4 TT |
214 | extern int get_accex (void); |
215 | extern void clear_accex (void); | |
216 | extern void set_fsr (uint32 fsr); | |
c906108c SS |
217 | |
218 | /* help.c */ | |
bdca5ee4 TT |
219 | extern void usage (void); |
220 | extern void gen_help (void); |