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1/* Lattice Mico32 simulator support code.
2 Contributed by Jon Beniston <jon@beniston.com>
3
8acc9f48 4 Copyright (C) 2009-2013 Free Software Foundation, Inc.
c28c63d8
JB
5
6 This file is part of GDB.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20
21#define WANT_CPU lm32bf
22#define WANT_CPU_LM32BF
23
24#include "sim-main.h"
25#include "cgen-mem.h"
26#include "cgen-ops.h"
27
28/* The contents of BUF are in target byte order. */
29
30int
31lm32bf_fetch_register (SIM_CPU * current_cpu, int rn, unsigned char *buf,
32 int len)
33{
34 if (rn < 32)
35 SETTSI (buf, lm32bf_h_gr_get (current_cpu, rn));
36 else
37 switch (rn)
38 {
39 case SIM_LM32_PC_REGNUM:
40 SETTSI (buf, lm32bf_h_pc_get (current_cpu));
41 break;
42 default:
43 return 0;
44 }
45
46 return -1;
47}
48
49/* The contents of BUF are in target byte order. */
50
51int
52lm32bf_store_register (SIM_CPU * current_cpu, int rn, unsigned char *buf,
53 int len)
54{
55 if (rn < 32)
56 lm32bf_h_gr_set (current_cpu, rn, GETTSI (buf));
57 else
58 switch (rn)
59 {
60 case SIM_LM32_PC_REGNUM:
61 lm32bf_h_pc_set (current_cpu, GETTSI (buf));
62 break;
63 default:
64 return 0;
65 }
66
67 return -1;
68}
69
70
71
72#if WITH_PROFILE_MODEL_P
73
74/* Initialize cycle counting for an insn.
75 FIRST_P is non-zero if this is the first insn in a set of parallel
76 insns. */
77
78void
79lm32bf_model_insn_before (SIM_CPU * cpu, int first_p)
80{
81}
82
83/* Record the cycles computed for an insn.
84 LAST_P is non-zero if this is the last insn in a set of parallel insns,
85 and we update the total cycle count.
86 CYCLES is the cycle count of the insn. */
87
88void
89lm32bf_model_insn_after (SIM_CPU * cpu, int last_p, int cycles)
90{
91}
92
93int
94lm32bf_model_lm32_u_exec (SIM_CPU * cpu, const IDESC * idesc,
95 int unit_num, int referenced)
96{
97 return idesc->timing->units[unit_num].done;
98}
99
100#endif /* WITH_PROFILE_MODEL_P */