1 /* CRIS v10 simulator support code
2 Copyright (C) 2004-2021 Free Software Foundation, Inc.
3 Contributed by Axis Communications.
5 This file is part of the GNU simulators.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 /* The infrastructure is based on that of i960.c. */
22 /* This must come before any other includes. */
25 #define WANT_CPU_CRISV10F
28 #define CRIS_TLS_REGISTER 14
29 #include "cris-tmpl.c"
31 #if WITH_PROFILE_MODEL_P
33 /* Model function for u-multiply unit. */
36 MY (XCONCAT3 (f_model_crisv,BASENUM,
37 _u_multiply)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
38 const IDESC *idesc ATTRIBUTE_UNUSED,
39 int unit_num ATTRIBUTE_UNUSED,
40 int referenced ATTRIBUTE_UNUSED)
45 #endif /* WITH_PROFILE_MODEL_P */
47 /* Do the interrupt sequence if possible, and return 1. If interrupts
48 are disabled or some other lockout is active, return 0 and do
51 Beware, the v10 implementation is incomplete and doesn't properly
52 lock out interrupts e.g. after special-register access and doesn't
56 MY (deliver_interrupt) (SIM_CPU *current_cpu,
57 enum cris_interrupt_type type,
60 unsigned char entryaddr_le[4];
62 SIM_DESC sd = CPU_STATE (current_cpu);
65 /* We haven't implemented other interrupt-types yet. */
66 if (type != CRIS_INT_INT)
69 /* We're supposed to be called outside of prefixes and branch
70 delay-slots etc, but why not check. */
71 if (GET_H_INSN_PREFIXED_P ())
77 /* User mode isn't supported for interrupts. (And we shouldn't see
78 this as 1 anyway. The user-mode bit isn't visible from user
79 mode. It doesn't make it into the U bit until the next
80 interrupt/exception.) */
86 if (sim_core_read_buffer (sd,
88 read_map, entryaddr_le,
89 GET_H_SR (H_SR_PRE_V32_IBR) + vec * 4, 4) == 0)
91 /* Nothing to do actually; either abort or send a signal. */
92 sim_core_signal (sd, current_cpu, CPU_PC_GET (current_cpu), 0, 4,
93 GET_H_SR (H_SR_PRE_V32_IBR) + vec * 4,
94 read_transfer, sim_core_unmapped_signal);
98 entryaddr = bfd_getl32 (entryaddr_le);
100 SET_H_SR (H_SR_PRE_V32_IRP, GET_H_PC ());
101 SET_H_PC (entryaddr);