darling-gdb/sim/m32r/m32rx.c
Doug Evans b8a9943dd4 * Makefile.in (m32r.o): Depend on cpu.h
(extract.o): Pass -DSCACHE_P.
	* mloop.in (extract{16,32}): Update call to m32r_decode.
	* arch.h,cpu.h,cpuall.h,decode.[ch]: Regenerate.
	* extract.c,model.c,sem-switch.c,sem.c: Regenerate.
	* sim-main.h: #include "ansidecl.h".
	Don't include cpu-opc.h, done by arch.h.
start-sanitize-m32rx
	* Makefile.in (M32RX_OBJS): Build m32rx support now.
	(m32rx.o): New rule.
	* m32r-sim.h (m32rx_h_cr_[gs]et): Define.
	* m32rx.c (m32rx_{fetch,store}_register): Update {get,set} of PC.
	(m32rx_h_accums_get): New function.
	* mloopx.in: Update call to m32rx_decode.  Rewrite exec loop.
	* cpux.h,decodex.[ch],modelx.c,readx.c,semx.c: Regenerate.
end-sanitize-m32rx
1998-02-05 21:01:06 +00:00

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/* m32rx simulator support code
Copyright (C) 1997, 1998 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB, the GNU debugger.
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. */
#define WANT_CPU
#define WANT_CPU_M32RX
#include "sim-main.h"
#include <signal.h>
#include "libiberty.h"
#include "bfd.h"
/* FIXME: need to provide general mechanism for accessing target files
these. For now this is a hack to avoid getting the host version. */
#include "../../libgloss/m32r/sys/syscall.h"
#include "targ-vals.h"
/* The contents of BUF are in target byte order. */
void
m32rx_fetch_register (sd, rn, buf)
SIM_DESC sd;
int rn;
unsigned char *buf;
{
SIM_CPU *current_cpu = STATE_CPU (sd, 0);
if (rn < 16)
SETTWI (buf, GET_H_GR (rn));
else if (rn < 21)
SETTWI (buf, GET_H_CR (rn - 16));
else switch (rn) {
case PC_REGNUM:
SETTWI (buf, GET_H_PC ());
break;
case ACCL_REGNUM:
SETTWI (buf, GETLODI (GET_H_ACCUM ()));
break;
case ACCH_REGNUM:
SETTWI (buf, GETHIDI (GET_H_ACCUM ()));
break;
#if 0
case 23: *reg = STATE_CPU_CPU (sd, 0)->h_cond; break;
case 24: *reg = STATE_CPU_CPU (sd, 0)->h_sm; break;
case 25: *reg = STATE_CPU_CPU (sd, 0)->h_bsm; break;
case 26: *reg = STATE_CPU_CPU (sd, 0)->h_ie; break;
case 27: *reg = STATE_CPU_CPU (sd, 0)->h_bie; break;
case 28: *reg = STATE_CPU_CPU (sd, 0)->h_bcarry; break; /* rename: bc */
case 29: memcpy (buf, &STATE_CPU_CPU (sd, 0)->h_bpc, sizeof(WI)); break; /* duplicate */
#endif
default: abort ();
}
}
/* The contents of BUF are in target byte order. */
void
m32rx_store_register (sd, rn, buf)
SIM_DESC sd;
int rn;
unsigned char *buf;
{
SIM_CPU *current_cpu = STATE_CPU (sd, 0);
if (rn < 16)
SET_H_GR (rn, GETTWI (buf));
else if (rn < 21)
SET_H_CR (rn - 16, GETTWI (buf));
else switch (rn) {
case PC_REGNUM:
SET_H_PC (GETTWI (buf));
break;
case ACCL_REGNUM:
SETLODI (CPU (h_accum), GETTWI (buf));
break;
case ACCH_REGNUM:
SETHIDI (CPU (h_accum), GETTWI (buf));
break;
#if 0
case 23: STATE_CPU_CPU (sd, 0)->h_cond = *reg; break;
case 24: STATE_CPU_CPU (sd, 0)->h_sm = *reg; break;
case 25: STATE_CPU_CPU (sd, 0)->h_bsm = *reg; break;
case 26: STATE_CPU_CPU (sd, 0)->h_ie = *reg; break;
case 27: STATE_CPU_CPU (sd, 0)->h_bie = *reg; break;
case 28: STATE_CPU_CPU (sd, 0)->h_bcarry = *reg; break; /* rename: bc */
case 29: memcpy (&STATE_CPU_CPU (sd, 0)->h_bpc, buf, sizeof(DI)); break; /* duplicate */
#endif
}
}
/* Cover fn to access h-accums. */
UDI
m32rx_h_accums_get (SIM_CPU *current_cpu, UINT accum)
{
return 0;
}