old-cross-binutils/sim/cris/crisv10f.c
Hans-Peter Nilsson aad3b3cbc1 * cris/dv-cris.c, cris/dv-rv.c, cris/rvdummy.c: New files.
* cris/Makefile.in (CONFIG_DEVICES): Remove redundant setting.
	(dv-cris.o, dv-rv.o rvdummy$(EXEEXT), rvdummy.o): New rules.
	(all): Depend on rvdummy$(EXEEXT).
	* cris/configure.ac: Call SIM_AC_OPTION_WARNINGS.  Check for
	sys/socket.h and sys/select.h.  Call SIM_AC_OPTION_HARDWARE,
	default off.
	* cris/configure: Regenerate.
	* cris/cris-sim.h (cris_have_900000xxif): Declare here.
	(enum cris_interrupt_type, crisv10deliver_interrupt)
	(crisv32deliver_interrupt: New declarations.
	* cris/cris-tmpl.c [WITH_HW] (MY (f_model_insn_after)): Call
	sim_events_tickn and set state-events member work_pending when it's
	time for the next event.
	[WITH_HW] (MY (f_specific_init)): Set CPU-model-specific
	interrupt-delivery function.
	* cris/crisv10f.c (MY (deliver_interrupt)): New function.
	* cris/crisv32f.c (MY (deliver_interrupt)): New function.
	* cris/devices.c: Include hw-device.h.
	(device_io_read_buffer) [WITH_HW]: Call hw_io_read_buffer.
	(device_io_write_buffer): Only perform 0x900000xx-functions if
	cris_have_900000xxif is nonzero.  Else if WITH_HW defined,
	call hw_io_write_buffer.  Add return 0 last in function.
	* cris/sim-if.c (cris_have_900000xxif): Now global.
	(sim_open) [WITH_HW]: Clear deliver_interrupt cpu member.
	Force "-model" option, effectively.
	* cris/sim-main.h (cris_interrupt_delivery_fn): New type.
	(struct _sim_cpu) [WITH_HW]: New member deliver_interrupt.
2006-04-03 03:01:45 +00:00

101 lines
2.9 KiB
C

/* CRIS v10 simulator support code
Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
Contributed by Axis Communications.
This file is part of the GNU simulators.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* The infrastructure is based on that of i960.c. */
#define WANT_CPU_CRISV10F
#define BASENUM 10
#include "cris-tmpl.c"
#if WITH_PROFILE_MODEL_P
/* Model function for u-multiply unit. */
int
MY (XCONCAT3 (f_model_crisv,BASENUM,
_u_multiply)) (SIM_CPU *current_cpu ATTRIBUTE_UNUSED,
const IDESC *idesc ATTRIBUTE_UNUSED,
int unit_num ATTRIBUTE_UNUSED,
int referenced ATTRIBUTE_UNUSED)
{
return 1;
}
#endif /* WITH_PROFILE_MODEL_P */
/* Do the interrupt sequence if possible, and return 1. If interrupts
are disabled or some other lockout is active, return 0 and do
nothing.
Beware, the v10 implementation is incomplete and doesn't properly
lock out interrupts e.g. after special-register access and doesn't
handle user-mode. */
int
MY (deliver_interrupt) (SIM_CPU *current_cpu,
enum cris_interrupt_type type,
unsigned int vec)
{
unsigned char entryaddr_le[4];
int was_user;
SIM_DESC sd = CPU_STATE (current_cpu);
unsigned32 entryaddr;
/* We haven't implemented other interrupt-types yet. */
if (type != CRIS_INT_INT)
abort ();
/* We're supposed to be called outside of prefixes and branch
delay-slots etc, but why not check. */
if (GET_H_INSN_PREFIXED_P ())
abort ();
if (!GET_H_IBIT ())
return 0;
/* User mode isn't supported for interrupts. (And we shouldn't see
this as 1 anyway. The user-mode bit isn't visible from user
mode. It doesn't make it into the U bit until the next
interrupt/exception.) */
if (GET_H_UBIT ())
abort ();
SET_H_PBIT (1);
if (sim_core_read_buffer (sd,
current_cpu,
read_map, entryaddr_le,
GET_H_SR (H_SR_PRE_V32_IBR) + vec * 4, 4) == 0)
{
/* Nothing to do actually; either abort or send a signal. */
sim_core_signal (sd, current_cpu, CIA_GET (current_cpu), 0, 4,
GET_H_SR (H_SR_PRE_V32_IBR) + vec * 4,
read_transfer, sim_core_unmapped_signal);
return 0;
}
entryaddr = bfd_getl32 (entryaddr_le);
SET_H_SR (H_SR_PRE_V32_IRP, GET_H_PC ());
SET_H_PC (entryaddr);
return 1;
}