1 /* CRIS v10 simulator support code
2 Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
3 Free Software Foundation, Inc.
4 Contributed by Axis Communications.
6 This file is part of the GNU simulators.
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.
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.
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/>. */
21 /* The infrastructure is based on that of i960.c. */
23 #define WANT_CPU_CRISV10F
26 #define CRIS_TLS_REGISTER 14
27 #include "cris-tmpl.c"
29 #if WITH_PROFILE_MODEL_P
31 /* Model function for u-multiply unit. */
34 MY (XCONCAT3 (f_model_crisv,BASENUM,
35 _u_multiply)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
36 const IDESC *idesc ATTRIBUTE_UNUSED,
37 int unit_num ATTRIBUTE_UNUSED,
38 int referenced ATTRIBUTE_UNUSED)
43 #endif /* WITH_PROFILE_MODEL_P */
45 /* Do the interrupt sequence if possible, and return 1. If interrupts
46 are disabled or some other lockout is active, return 0 and do
49 Beware, the v10 implementation is incomplete and doesn't properly
50 lock out interrupts e.g. after special-register access and doesn't
54 MY (deliver_interrupt) (SIM_CPU *current_cpu,
55 enum cris_interrupt_type type,
58 unsigned char entryaddr_le[4];
60 SIM_DESC sd = CPU_STATE (current_cpu);
63 /* We haven't implemented other interrupt-types yet. */
64 if (type != CRIS_INT_INT)
67 /* We're supposed to be called outside of prefixes and branch
68 delay-slots etc, but why not check. */
69 if (GET_H_INSN_PREFIXED_P ())
75 /* User mode isn't supported for interrupts. (And we shouldn't see
76 this as 1 anyway. The user-mode bit isn't visible from user
77 mode. It doesn't make it into the U bit until the next
78 interrupt/exception.) */
84 if (sim_core_read_buffer (sd,
86 read_map, entryaddr_le,
87 GET_H_SR (H_SR_PRE_V32_IBR) + vec * 4, 4) == 0)
89 /* Nothing to do actually; either abort or send a signal. */
90 sim_core_signal (sd, current_cpu, CIA_GET (current_cpu), 0, 4,
91 GET_H_SR (H_SR_PRE_V32_IBR) + vec * 4,
92 read_transfer, sim_core_unmapped_signal);
96 entryaddr = bfd_getl32 (entryaddr_le);
98 SET_H_SR (H_SR_PRE_V32_IRP, GET_H_PC ());