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authorDoug Evans <dje@google.com>1998-02-05 21:01:06 +0000
committerDoug Evans <dje@google.com>1998-02-05 21:01:06 +0000
commitb8a9943dd4f35984507734e2ad21ad60e4f42d4e (patch)
tree6452099c47e76691f105259bc6149a2e99886110 /sim/m32r/m32rx.c
parent5bd5a5c7a2647a21aa0662e56c323ac5f76bdbcd (diff)
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* 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
Diffstat (limited to 'sim/m32r/m32rx.c')
-rw-r--r--sim/m32r/m32rx.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/sim/m32r/m32rx.c b/sim/m32r/m32rx.c
new file mode 100644
index 0000000..1710428
--- /dev/null
+++ b/sim/m32r/m32rx.c
@@ -0,0 +1,112 @@
+/* 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;
+}