More debug support; Enable -t/-v to work correctly; Add --enable-sim-cflags configure switch

7 files changed, 1583 insertions, 177 deletions

diff --git a/sim/d10v/ChangeLog b/sim/d10v/ChangeLog
index 42f4427..d551da9 100644
--- a/sim/d10v/ChangeLog
+++ b/sim/d10v/ChangeLog
@@ -5,17 +5,41 @@ Wed Sep  4 11:35:17 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 	(_ins_type): New enumeration to specify which container an
 	instruction is in, and whether it is part of a parallel operation.
 	(_state): Add ins_type field.
-	
-	* simops.c: Change all #ifdef DEBUG code so that the input and
-	output values can be traced, along with the instruction type.
+	({,u}int{8,16,32,64}): Use limits.h to size the appropriate types.
+	(ins_type_counters): Counters for the various instruction types.
+	({left,right}_nops): Counters for the number of nops in each
+	container.
+	(d10v_debug): New variable to indicate whether debugging is turned
+	on.
+
+	* simops.c: (all functions): Change all #ifdef DEBUG code so that
+	the input and output values can be traced, along with the
+	instruction type.  Make the -t option enable tracing.
+	(all functions): Change printf calls to use the printf_filtered
+	function in the callback table.
 
 	* interp.c (_leftright): New enumeration to say whether 2 short
 	instructions are done left first or right first.
 	(do_{long,2_short,parallel}): Indicate in the machine state which
-	type of instruction this is.
+	type of instruction this is.  Count each of the types of
+	instructions executed.
 	(sim_size): Only print the memory sizes if DEBUG_MEMSIZE debug
 	flag is set.
 	(sim_resume): Pass left/right indication to do_2_short.
+	(all functions): Change printf calls to use the printf_filtered
+	function in the callback table.
+	(sim_trace): Turn on debug flag if DEBUG was defined, and call
+	sim_resume.
+	(sim_info): Print out statistics on instructions.
+	(sim_{trace,create_inferior}): Eliminate extraneous output unless
+	debugging.
+
+	* Makefile.in: Make objects depend on d10v_sim.h.
+	({,SIM_}CFLAGS): Include configure dependent switches.
+
+	* configure.in (--enable-sim-cflags): New switch to allow user to
+	set the defaults.
+	* configure: Regenerate.
 
 Wed Sep 04 04:45:34 1996  Mark Alexander  <marka@cygnus.com>
 
diff --git a/sim/d10v/Makefile.in b/sim/d10v/Makefile.in
index ea296b1..ca9c100 100644
--- a/sim/d10v/Makefile.in
+++ b/sim/d10v/Makefile.in
@@ -1,5 +1,5 @@
 #    Makefile template for Configure for the SH sim library.
-#    Copyright (C) 1990, 1991, 1992, 1995 Free Software Foundation, Inc.
+#    Copyright (C) 1996 Free Software Foundation, Inc.
 #    Written by Cygnus Support.
 # 
 # This program is free software; you can redistribute it and/or modify
@@ -56,7 +56,8 @@ INSTALL_XFORM1= $(INSTALL_XFORM) -b=.1
 AR = @AR@
 AR_FLAGS = rc
 CC = @CC@
-CFLAGS = @CFLAGS@ @DEFS@
+SIM_CFLAGS = @sim_cflags@
+CFLAGS = @CFLAGS@ @DEFS@ $(SIM_CFLAGS)
 MAKEINFO = makeinfo
 RANLIB = @RANLIB@
 CC_FOR_BUILD = @CC_FOR_BUILD@
@@ -67,14 +68,15 @@ TDEFINES =
 .NOEXPORT:
 MAKEOVERRIDES=
 
-X=xstuff.o
-XL=-lX11
+#X=xstuff.o
+#XL=-lX11
 X=
 XL=
 
+INCLUDE = d10v_sim.h
 INCDIR = $(srcdir)/../../include 
 CSEARCH = -I. -I$(srcdir)  -I../../include  \
-  -I../../bfd -I$(INCDIR) -I$(srcdir)/../../bfd -I$(srcdir)/../../gdb -I$(srcdir)/../../newlib/libc/sys/sh
+  -I../../bfd -I$(INCDIR) -I$(srcdir)/../../bfd -I$(srcdir)/../../gdb -I$(srcdir)/../../newlib/libc/sys/d10v
 DEP = mkdep
 
 all:	run libsim.a
@@ -82,8 +84,9 @@ all:	run libsim.a
 run:	interp.o $(X) run.o table.o callback.o simops.o
 	$(CC) $(CFLAGS) -o run $(X) interp.o table.o callback.o simops.o run.o ../../bfd/libbfd.a ../../libiberty/libiberty.a $(XL) -lm
 
-interp.o:interp.c table.c
-run.o:run.c 
+interp.o:interp.c table.c $(INCLUDE)
+run.o:run.c $(INCLUDE)
+simops.o:simops.c $(INCLUDE)
 
 libsim.a:interp.o table.o simops.o
 	$(AR) $(ARFLAGS) libsim.a interp.o table.o simops.o
@@ -95,7 +98,7 @@ simops.h:	gencode
 table.c:	gencode simops.h
 	./gencode >$@
 
-gencode:	gencode.c ../../opcodes/libopcodes.a
+gencode:	gencode.c ../../opcodes/libopcodes.a $(INCLUDE)
 	$(CC) $(CFLAGS) $(HDEFINES) $(TDEFINES) $(CSEARCH) $(CSWITCHE) -o gencode $(srcdir)/gencode.c ../../opcodes/libopcodes.a -lc
 
 .c.o:
diff --git a/sim/d10v/configure b/sim/d10v/configure
new file mode 100755
index 0000000..1b8ca99
--- /dev/null
+++ b/sim/d10v/configure
@@ -0,0 +1,1241 @@
+#! /bin/sh
+
+# Guess values for system-dependent variables and create Makefiles.
+# Generated automatically using autoconf version 2.10 
+# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+
+# Defaults:
+ac_help=
+ac_default_prefix=/usr/local
+# Any additions from configure.in:
+ac_help="$ac_help
+  --enable-sim-cflags=opts		Extra CFLAGS for use in building simulator"
+
+# Initialize some variables set by options.
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+build=NONE
+cache_file=./config.cache
+exec_prefix=NONE
+host=NONE
+no_create=
+nonopt=NONE
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+target=NONE
+verbose=
+x_includes=NONE
+x_libraries=NONE
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datadir='${prefix}/share'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+libdir='${exec_prefix}/lib'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+infodir='${prefix}/info'
+mandir='${prefix}/man'
+
+# Initialize some other variables.
+subdirs=
+MFLAGS= MAKEFLAGS=
+
+ac_prev=
+for ac_option
+do
+
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
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+    ac_prev=
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+  *) ac_optarg= ;;
+  esac
+
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+
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+
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+
+  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+    ac_prev=datadir ;;
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+  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
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+  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
+  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
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+  --mandir=DIR            man documentation in DIR [PREFIX/man]
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+
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+    x_libraries="$ac_optarg" ;;
+
+  -*) { echo "configure: error: $ac_option: invalid option; use --help to show usage" 1>&2; exit 1; }
+    ;;
+
+  *)
+    if test -n "`echo $ac_option| sed 's/[-a-z0-9.]//g'`"; then
+      echo "configure: warning: $ac_option: invalid host type" 1>&2
+    fi
+    if test "x$nonopt" != xNONE; then
+      { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; }
+    fi
+    nonopt="$ac_option"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
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+fi
+
+trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
+
+# File descriptor usage:
+# 0 standard input
+# 1 file creation
+# 2 errors and warnings
+# 3 some systems may open it to /dev/tty
+# 4 used on the Kubota Titan
+# 6 checking for... messages and results
+# 5 compiler messages saved in config.log
+if test "$silent" = yes; then
+  exec 6>/dev/null
+else
+  exec 6>&1
+fi
+exec 5>./config.log
+
+echo "\
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+" 1>&5
+
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Also quote any args containing shell metacharacters.
+ac_configure_args=
+for ac_arg
+do
+  case "$ac_arg" in
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c) ;;
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
+  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
+  ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+  *) ac_configure_args="$ac_configure_args $ac_arg" ;;
+  esac
+done
+
+# NLS nuisances.
+# Only set LANG and LC_ALL to C if already set.
+# These must not be set unconditionally because not all systems understand
+# e.g. LANG=C (notably SCO).
+if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
+if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -rf conftest* confdefs.h
+# AIX cpp loses on an empty file, so make sure it contains at least a newline.
+echo > confdefs.h
+
+# A filename unique to this package, relative to the directory that
+# configure is in, which we can look for to find out if srcdir is correct.
+ac_unique_file=Makefile.in
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then its parent.
+  ac_prog=$0
+  ac_confdir=`echo $ac_prog|sed 's%/[^/][^/]*$%%'`
+  test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
+  srcdir=$ac_confdir
+  if test ! -r $srcdir/$ac_unique_file; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r $srcdir/$ac_unique_file; then
+  if test "$ac_srcdir_defaulted" = yes; then
+    { echo "configure: error: can not find sources in $ac_confdir or .." 1>&2; exit 1; }
+  else
+    { echo "configure: error: can not find sources in $srcdir" 1>&2; exit 1; }
+  fi
+fi
+srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
+
+# Prefer explicitly selected file to automatically selected ones.
+if test -z "$CONFIG_SITE"; then
+  if test "x$prefix" != xNONE; then
+    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
+  else
+    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
+  fi
+fi
+for ac_site_file in $CONFIG_SITE; do
+  if test -r "$ac_site_file"; then
+    echo "loading site script $ac_site_file"
+    . "$ac_site_file"
+  fi
+done
+
+if test -r "$cache_file"; then
+  echo "loading cache $cache_file"
+  . $cache_file
+else
+  echo "creating cache $cache_file"
+  > $cache_file
+fi
+
+ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+
+if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
+  # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
+  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
+    ac_n= ac_c='
+' ac_t='	'
+  else
+    ac_n=-n ac_c= ac_t=
+  fi
+else
+  ac_n= ac_c='\c' ac_t=
+fi
+
+
+
+ac_aux_dir=
+for ac_dir in `cd $srcdir;pwd`/../.. $srcdir/`cd $srcdir;pwd`/../..; do
+  if test -f $ac_dir/install-sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f $ac_dir/install.sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  { echo "configure: error: can not find install-sh or install.sh in `cd $srcdir;pwd`/../.. $srcdir/`cd $srcdir;pwd`/../.." 1>&2; exit 1; }
+fi
+ac_config_guess=$ac_aux_dir/config.guess
+ac_config_sub=$ac_aux_dir/config.sub
+ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
+
+
+# Do some error checking and defaulting for the host and target type.
+# The inputs are:
+#    configure --host=HOST --target=TARGET --build=BUILD NONOPT
+#
+# The rules are:
+# 1. You are not allowed to specify --host, --target, and nonopt at the
+#    same time.
+# 2. Host defaults to nonopt.
+# 3. If nonopt is not specified, then host defaults to the current host,
+#    as determined by config.guess.
+# 4. Target and build default to nonopt.
+# 5. If nonopt is not specified, then target and build default to host.
+
+# The aliases save the names the user supplied, while $host etc.
+# will get canonicalized.
+case $host---$target---$nonopt in
+NONE---*---* | *---NONE---* | *---*---NONE) ;;
+*) { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; } ;;
+esac
+
+
+# Make sure we can run config.sub.
+if $ac_config_sub sun4 >/dev/null 2>&1; then :
+else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
+fi
+
+echo $ac_n "checking host system type""... $ac_c" 1>&6
+
+host_alias=$host
+case "$host_alias" in
+NONE)
+  case $nonopt in
+  NONE)
+    if host_alias=`$ac_config_guess`; then :
+    else { echo "configure: error: can not guess host type; you must specify one" 1>&2; exit 1; }
+    fi ;;
+  *) host_alias=$nonopt ;;
+  esac ;;
+esac
+
+host=`$ac_config_sub $host_alias`
+host_cpu=`echo $host | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
+host_vendor=`echo $host | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
+host_os=`echo $host | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
+echo "$ac_t""$host" 1>&6
+
+echo $ac_n "checking target system type""... $ac_c" 1>&6
+
+target_alias=$target
+case "$target_alias" in
+NONE)
+  case $nonopt in
+  NONE) target_alias=$host_alias ;;
+  *) target_alias=$nonopt ;;
+  esac ;;
+esac
+
+target=`$ac_config_sub $target_alias`
+target_cpu=`echo $target | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
+target_vendor=`echo $target | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
+target_os=`echo $target | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
+echo "$ac_t""$target" 1>&6
+
+echo $ac_n "checking build system type""... $ac_c" 1>&6
+
+build_alias=$build
+case "$build_alias" in
+NONE)
+  case $nonopt in
+  NONE) build_alias=$host_alias ;;
+  *) build_alias=$nonopt ;;
+  esac ;;
+esac
+
+build=`$ac_config_sub $build_alias`
+build_cpu=`echo $build | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\1/'`
+build_vendor=`echo $build | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\2/'`
+build_os=`echo $build | sed 's/^\(.*\)-\(.*\)-\(.*\)$/\3/'`
+echo "$ac_t""$build" 1>&6
+
+test "$host_alias" != "$target_alias" &&
+  test "$program_prefix$program_suffix$program_transform_name" = \
+    NONENONEs,x,x, &&
+  program_prefix=${target_alias}-
+
+if test "$program_transform_name" = s,x,x,; then
+  program_transform_name=
+else
+  # Double any \ or $.  echo might interpret backslashes.
+  cat <<\EOF_SED > conftestsed
+s,\\,\\\\,g; s,\$,$$,g
+EOF_SED
+  program_transform_name="`echo $program_transform_name|sed -f conftestsed`"
+  rm -f conftestsed
+fi
+test "$program_prefix" != NONE &&
+  program_transform_name="s,^,${program_prefix},; $program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s,\$\$,${program_suffix},; $program_transform_name"
+
+# sed with no file args requires a program.
+test "$program_transform_name" = "" && program_transform_name="s,x,x,"
+
+# Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_CC="gcc"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  ac_prog_rejected=no
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
+        ac_prog_rejected=yes
+	continue
+      fi
+      ac_cv_prog_CC="cc"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# -gt 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    set dummy "$ac_dir/$ac_word" "$@"
+    shift
+    ac_cv_prog_CC="$@"
+  fi
+fi
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+  test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
+fi
+
+echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.c <<EOF
+#ifdef __GNUC__
+  yes;
+#endif
+EOF
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:729: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+  ac_cv_prog_gcc=yes
+else
+  ac_cv_prog_gcc=no
+fi
+fi
+
+echo "$ac_t""$ac_cv_prog_gcc" 1>&6
+if test $ac_cv_prog_gcc = yes; then
+  GCC=yes
+  if test "${CFLAGS+set}" != set; then
+    echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_gcc_g'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  echo 'void f(){}' > conftest.c
+if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
+  ac_cv_prog_gcc_g=yes
+else
+  ac_cv_prog_gcc_g=no
+fi
+rm -f conftest*
+
+fi
+
+echo "$ac_t""$ac_cv_prog_gcc_g" 1>&6
+    if test $ac_cv_prog_gcc_g = yes; then
+      CFLAGS="-g -O"
+    else
+      CFLAGS="-O"
+    fi
+  fi
+else
+  GCC=
+  test "${CFLAGS+set}" = set || CFLAGS="-g"
+fi
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# ./install, which can be erroneously created by make from ./install.sh.
+echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
+if test -z "$INSTALL"; then
+if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+    IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    # Account for people who put trailing slashes in PATH elements.
+    case "$ac_dir/" in
+    /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
+    *)
+      # OSF1 and SCO ODT 3.0 have their own names for install.
+      for ac_prog in ginstall installbsd scoinst install; do
+        if test -f $ac_dir/$ac_prog; then
+	  if test $ac_prog = install &&
+            grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    # OSF/1 installbsd also uses dspmsg, but is usable.
+	    :
+	  else
+	    ac_cv_path_install="$ac_dir/$ac_prog -c"
+	    break 2
+	  fi
+	fi
+      done
+      ;;
+    esac
+  done
+  IFS="$ac_save_ifs"
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL="$ac_cv_path_install"
+  else
+    # As a last resort, use the slow shell script.  We don't cache a
+    # path for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the path is relative.
+    INSTALL="$ac_install_sh"
+  fi
+fi
+echo "$ac_t""$INSTALL" 1>&6
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+# If we cannot run a trivial program, we must be cross compiling.
+echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_c_cross'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_c_cross=yes
+else
+cat > conftest.$ac_ext <<EOF
+#line 834 "configure"
+#include "confdefs.h"
+main(){return(0);}
+EOF
+{ (eval echo configure:838: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+if test -s conftest && (./conftest; exit) 2>/dev/null; then
+  ac_cv_c_cross=no
+else
+  ac_cv_c_cross=yes
+fi
+fi
+rm -fr conftest*
+fi
+
+echo "$ac_t""$ac_cv_c_cross" 1>&6
+cross_compiling=$ac_cv_c_cross
+
+echo $ac_n "checking whether byte ordering is bigendian""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_c_bigendian'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_cv_c_bigendian=unknown
+# See if sys/param.h defines the BYTE_ORDER macro.
+cat > conftest.$ac_ext <<EOF
+#line 858 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/param.h>
+int main() { return 0; }
+int t() {
+
+#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
+ bogus endian macros
+#endif
+; return 0; }
+EOF
+if { (eval echo configure:870: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  # It does; now see whether it defined to BIG_ENDIAN or not.
+cat > conftest.$ac_ext <<EOF
+#line 874 "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <sys/param.h>
+int main() { return 0; }
+int t() {
+
+#if BYTE_ORDER != BIG_ENDIAN
+ not big endian
+#endif
+; return 0; }
+EOF
+if { (eval echo configure:886: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+  rm -rf conftest*
+  ac_cv_c_bigendian=yes
+else
+  rm -rf conftest*
+  ac_cv_c_bigendian=no
+fi
+rm -f conftest*
+
+fi
+rm -f conftest*
+
+if test $ac_cv_c_bigendian = unknown; then
+if test "$cross_compiling" = yes; then
+    { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
+else
+cat > conftest.$ac_ext <<EOF
+#line 903 "configure"
+#include "confdefs.h"
+main () {
+  /* Are we little or big endian?  From Harbison&Steele.  */
+  union
+  {
+    long l;
+    char c[sizeof (long)];
+  } u;
+  u.l = 1;
+  exit (u.c[sizeof (long) - 1] == 1);
+}
+EOF
+{ (eval echo configure:916: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+if test -s conftest && (./conftest; exit) 2>/dev/null; then
+  ac_cv_c_bigendian=no
+else
+  ac_cv_c_bigendian=yes
+fi
+fi
+rm -fr conftest*
+fi
+fi
+
+echo "$ac_t""$ac_cv_c_bigendian" 1>&6
+if test $ac_cv_c_bigendian = yes; then
+  cat >> confdefs.h <<\EOF
+#define WORDS_BIGENDIAN 1
+EOF
+
+fi
+
+
+. ${srcdir}/../../bfd/configure.host
+
+# Check whether --enable-sim-cflags or --disable-sim-cflags was given.
+if test "${enable_sim_cflags+set}" = set; then
+  enableval="$enable_sim_cflags"
+  case "${enableval}" in
+  yes)	 sim_cflags="-O2";;
+  trace) sim_cflags="-O2 -DDEBUG=3";;
+  no)	 sim_cflags="";;
+  *)	 sim_cflags=`echo "${enableval}" | sed -e "s/,/ /g"`;;
+esac
+if test x"$silent" != x"yes" && test x"$sim_cflags" != x""; then
+  echo "Setting sim cflags = $sim_cflags" 6>&1
+fi
+else
+  sim_cflags=""
+fi
+
+
+
+AR=${AR-ar}
+
+# Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_RANLIB="ranlib"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+  test -z "$ac_cv_prog_RANLIB" && ac_cv_prog_RANLIB=":"
+fi
+fi
+RANLIB="$ac_cv_prog_RANLIB"
+if test -n "$RANLIB"; then
+  echo "$ac_t""$RANLIB" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+
+
+# Put a plausible default for CC_FOR_BUILD in Makefile.
+# If we cannot run a trivial program, we must be cross compiling.
+echo $ac_n "checking whether cross-compiling""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_c_cross'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  ac_cv_c_cross=yes
+else
+cat > conftest.$ac_ext <<EOF
+#line 998 "configure"
+#include "confdefs.h"
+main(){return(0);}
+EOF
+{ (eval echo configure:1002: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }
+if test -s conftest && (./conftest; exit) 2>/dev/null; then
+  ac_cv_c_cross=no
+else
+  ac_cv_c_cross=yes
+fi
+fi
+rm -fr conftest*
+fi
+
+echo "$ac_t""$ac_cv_c_cross" 1>&6
+cross_compiling=$ac_cv_c_cross
+
+if test "x$cross_compiling" = "xno"; then
+  CC_FOR_BUILD='$(CC)'
+else
+  CC_FOR_BUILD=gcc
+fi
+
+
+trap '' 1 2 15
+cat > confcache <<\EOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs.  It is not useful on other systems.
+# If it contains results you don't want to keep, you may remove or edit it.
+#
+# By default, configure uses ./config.cache as the cache file,
+# creating it if it does not exist already.  You can give configure
+# the --cache-file=FILE option to use a different cache file; that is
+# what configure does when it calls configure scripts in
+# subdirectories, so they share the cache.
+# Giving --cache-file=/dev/null disables caching, for debugging configure.
+# config.status only pays attention to the cache file if you give it the
+# --recheck option to rerun configure.
+#
+EOF
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(set) 2>&1 |
+  sed -n "s/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=\${\1='\2'}/p" \
+  >> confcache
+if cmp -s $cache_file confcache; then
+  :
+else
+  if test -w $cache_file; then
+    echo "updating cache $cache_file"
+    cat confcache > $cache_file
+  else
+    echo "not updating unwritable cache $cache_file"
+  fi
+fi
+rm -f confcache
+
+trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# Any assignment to VPATH causes Sun make to only execute
+# the first set of double-colon rules, so remove it if not needed.
+# If there is a colon in the path, we need to keep it.
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[ 	]*VPATH[ 	]*=[^:]*$/d'
+fi
+
+trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15
+
+# Transform confdefs.h into DEFS.
+# Protect against shell expansion while executing Makefile rules.
+# Protect against Makefile macro expansion.
+cat > conftest.defs <<\EOF
+s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%-D\1=\2%g
+s%[ 	`~#$^&*(){}\\|;'"<>?]%\\&%g
+s%\[%\\&%g
+s%\]%\\&%g
+s%\$%$$%g
+EOF
+DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' '`
+rm -f conftest.defs
+
+
+# Without the "./", some shells look in PATH for config.status.
+: ${CONFIG_STATUS=./config.status}
+
+echo creating $CONFIG_STATUS
+rm -f $CONFIG_STATUS
+cat > $CONFIG_STATUS <<EOF
+#! /bin/sh
+# Generated automatically by configure.
+# Run this file to recreate the current configuration.
+# This directory was configured as follows,
+# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+#
+# $0 $ac_configure_args
+#
+# Compiler output produced by configure, useful for debugging
+# configure, is in ./config.log if it exists.
+
+ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
+for ac_option
+do
+  case "\$ac_option" in
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
+    exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
+  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
+    echo "$CONFIG_STATUS generated by autoconf version 2.10"
+    exit 0 ;;
+  -help | --help | --hel | --he | --h)
+    echo "\$ac_cs_usage"; exit 0 ;;
+  *) echo "\$ac_cs_usage"; exit 1 ;;
+  esac
+done
+
+ac_given_srcdir=$srcdir
+ac_given_INSTALL="$INSTALL"
+
+trap 'rm -fr `echo "Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
+EOF
+cat >> $CONFIG_STATUS <<EOF
+
+# Protect against being on the right side of a sed subst in config.status.
+sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
+ s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
+$ac_vpsub
+$extrasub
+s%@CFLAGS@%$CFLAGS%g
+s%@CPPFLAGS@%$CPPFLAGS%g
+s%@CXXFLAGS@%$CXXFLAGS%g
+s%@DEFS@%$DEFS%g
+s%@LDFLAGS@%$LDFLAGS%g
+s%@LIBS@%$LIBS%g
+s%@exec_prefix@%$exec_prefix%g
+s%@prefix@%$prefix%g
+s%@program_transform_name@%$program_transform_name%g
+s%@bindir@%$bindir%g
+s%@sbindir@%$sbindir%g
+s%@libexecdir@%$libexecdir%g
+s%@datadir@%$datadir%g
+s%@sysconfdir@%$sysconfdir%g
+s%@sharedstatedir@%$sharedstatedir%g
+s%@localstatedir@%$localstatedir%g
+s%@libdir@%$libdir%g
+s%@includedir@%$includedir%g
+s%@oldincludedir@%$oldincludedir%g
+s%@infodir@%$infodir%g
+s%@mandir@%$mandir%g
+s%@host@%$host%g
+s%@host_alias@%$host_alias%g
+s%@host_cpu@%$host_cpu%g
+s%@host_vendor@%$host_vendor%g
+s%@host_os@%$host_os%g
+s%@target@%$target%g
+s%@target_alias@%$target_alias%g
+s%@target_cpu@%$target_cpu%g
+s%@target_vendor@%$target_vendor%g
+s%@target_os@%$target_os%g
+s%@build@%$build%g
+s%@build_alias@%$build_alias%g
+s%@build_cpu@%$build_cpu%g
+s%@build_vendor@%$build_vendor%g
+s%@build_os@%$build_os%g
+s%@CC@%$CC%g
+s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
+s%@INSTALL_DATA@%$INSTALL_DATA%g
+s%@HDEFINES@%$HDEFINES%g
+s%@AR@%$AR%g
+s%@RANLIB@%$RANLIB%g
+s%@sim_cflags@%$sim_cflags%g
+s%@CC_FOR_BUILD@%$CC_FOR_BUILD%g
+
+CEOF
+EOF
+cat >> $CONFIG_STATUS <<EOF
+
+CONFIG_FILES=\${CONFIG_FILES-"Makefile"}
+EOF
+cat >> $CONFIG_STATUS <<\EOF
+for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
+  # Support "outfile[:infile]", defaulting infile="outfile.in".
+  case "$ac_file" in
+  *:*) ac_file_in=`echo "$ac_file"|sed 's%.*:%%'`
+       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
+  *) ac_file_in="${ac_file}.in" ;;
+  esac
+
+  # Adjust relative srcdir, etc. for subdirectories.
+
+  # Remove last slash and all that follows it.  Not all systems have dirname.
+  ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
+  if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
+    # The file is in a subdirectory.
+    test ! -d "$ac_dir" && mkdir "$ac_dir"
+    ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
+    # A "../" for each directory in $ac_dir_suffix.
+    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
+  else
+    ac_dir_suffix= ac_dots=
+  fi
+
+  case "$ac_given_srcdir" in
+  .)  srcdir=.
+      if test -z "$ac_dots"; then top_srcdir=.
+      else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
+  /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
+  *) # Relative path.
+    srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
+    top_srcdir="$ac_dots$ac_given_srcdir" ;;
+  esac
+
+  case "$ac_given_INSTALL" in
+  [/$]*) INSTALL="$ac_given_INSTALL" ;;
+  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
+  esac
+  echo creating "$ac_file"
+  rm -f "$ac_file"
+  configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
+  case "$ac_file" in
+  *Makefile*) ac_comsub="1i\\
+# $configure_input" ;;
+  *) ac_comsub= ;;
+  esac
+  sed -e "$ac_comsub
+s%@configure_input@%$configure_input%g
+s%@srcdir@%$srcdir%g
+s%@top_srcdir@%$top_srcdir%g
+s%@INSTALL@%$INSTALL%g
+" -f conftest.subs $ac_given_srcdir/$ac_file_in > $ac_file
+fi; done
+rm -f conftest.subs
+
+
+
+exit 0
+EOF
+chmod +x $CONFIG_STATUS
+rm -fr confdefs* $ac_clean_files
+test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1
+
diff --git a/sim/d10v/configure.in b/sim/d10v/configure.in
index 6bc9b3c..cd1700a 100644
--- a/sim/d10v/configure.in
+++ b/sim/d10v/configure.in
@@ -11,11 +11,24 @@ AC_C_BIGENDIAN
 
 . ${srcdir}/../../bfd/configure.host
 
+AC_ARG_ENABLE(sim-cflags,
+[  --enable-sim-cflags=opts		Extra CFLAGS for use in building simulator],
+[case "${enableval}" in
+  yes)	 sim_cflags="-O2";;
+  trace) sim_cflags="-O2 -DDEBUG=3";;
+  no)	 sim_cflags="";;
+  *)	 sim_cflags=`echo "${enableval}" | sed -e "s/,/ /g"`;;
+esac
+if test x"$silent" != x"yes" && test x"$sim_cflags" != x""; then
+  echo "Setting sim cflags = $sim_cflags" 6>&1
+fi],[sim_cflags=""])dnl
+
 AC_SUBST(CFLAGS)
 AC_SUBST(HDEFINES)
 AR=${AR-ar}
 AC_SUBST(AR)
 AC_PROG_RANLIB
+AC_SUBST(sim_cflags)
 
 # Put a plausible default for CC_FOR_BUILD in Makefile.
 AC_C_CROSS
diff --git a/sim/d10v/d10v_sim.h b/sim/d10v/d10v_sim.h
index 64fa4a9..4913fa8 100644
--- a/sim/d10v/d10v_sim.h
+++ b/sim/d10v/d10v_sim.h
@@ -1,26 +1,55 @@
 #include <stdio.h>
 #include <ctype.h>
+#include <limits.h>
 #include "ansidecl.h"
 #include "callback.h"
 #include "opcode/d10v.h"
 
-#define DEBUG_TRACE	0x00000001
-#define DEBUG_VALUES	0x00000002
-#define DEBUG_MEMSIZE	0x00000004
+#define DEBUG_TRACE		0x00000001
+#define DEBUG_VALUES		0x00000002
+#define DEBUG_MEMSIZE		0x00000004
+#define DEBUG_INSTRUCTION	0x00000008
 
-#ifndef DEBUG
-#define DEBUG 0
-#endif
+extern int d10v_debug;
 
-/* FIXME: host defines */
+#if UCHAR_MAX == 255
 typedef unsigned char uint8;
-typedef unsigned short uint16;
-typedef unsigned int uint32;
 typedef signed char int8;
+#else
+#error "Char is not an 8-bit type"
+#endif
+
+#if SHRT_MAX == 32767
+typedef unsigned short uint16;
 typedef signed short int16;
+#else
+#error "Short is not a 16-bit type"
+#endif
+
+#if INT_MAX == 2147483647
+typedef unsigned int uint32;
 typedef signed int int32;
+
+#elif LONG_MAX == 2147483647
+typedef unsigned long uint32;
+typedef signed long int32;
+
+#else
+#error "Neither int nor long is a 32-bit type"
+#endif
+
+#if LONG_MAX > 2147483647
+typedef unsigned long uint64;
+typedef signed long int64;
+
+#elif __GNUC__
+typedef unsigned long long uint64;
 typedef signed long long int64;
 
+#else
+#error "Can't find an appropriate 64-bit type"
+#endif
+
 /* FIXME: D10V defines */
 typedef uint16 reg_t;
 
@@ -44,9 +73,13 @@ enum _ins_type
   INS_RIGHT,
   INS_LEFT_PARALLEL,
   INS_RIGHT_PARALLEL,
-  INS_LONG
+  INS_LONG,
+  INS_MAX
 };
 
+extern long ins_type_counters[ (int)INS_MAX ];
+extern long left_nops, right_nops;
+
 struct _state
 {
   reg_t regs[16];		/* general-purpose registers */
diff --git a/sim/d10v/interp.c b/sim/d10v/interp.c
index de85be7..1a1ede9 100644
--- a/sim/d10v/interp.c
+++ b/sim/d10v/interp.c
@@ -10,7 +10,10 @@
 
 enum _leftright { LEFT_FIRST, RIGHT_FIRST };
 
+int d10v_debug;
 host_callback *d10v_callback;
+long ins_type_counters[ (int)INS_MAX ];
+long left_nops, right_nops;
 
 uint16 OP[4];
 
@@ -54,7 +57,7 @@ lookup_hash (ins, size)
     {
       if (h->next == NULL)
 	{
-	  printf ("ERROR looking up hash for %x at PC %x\n",ins, PC);
+	  (*d10v_callback->printf_filtered) (d10v_callback, "ERROR looking up hash for %x at PC %x\n",ins, PC);
 	  exit(1);
 	}
       h = h->next;
@@ -145,10 +148,14 @@ do_long (ins)
      uint32 ins;
 {
   struct hash_entry *h;
-  /*  printf ("do_long %x\n",ins); */
+#ifdef DEBUG
+  if ((d10v_debug & DEBUG_INSTRUCTION) != 0)
+    (*d10v_callback->printf_filtered) (d10v_callback, "do_long 0x%x\n", ins);
+#endif
   h = lookup_hash (ins, 1);
   get_operands (h->ops, ins);
   State.ins_type = INS_LONG;
+  ins_type_counters[ (int)State.ins_type ]++;
   (h->ops->func)();
 }
 static void
@@ -157,14 +164,21 @@ do_2_short (ins1, ins2, leftright)
      enum _leftright leftright;
 {
   struct hash_entry *h;
+#ifdef DEBUG
+  if ((d10v_debug & DEBUG_INSTRUCTION) != 0)
+    (*d10v_callback->printf_filtered) (d10v_callback, "do_2_short 0x%x (%s) -> 0x%x\n",
+				       ins1, (leftright) ? "left" : "right", ins2);
+#endif
   /*  printf ("do_2_short %x -> %x\n",ins1,ins2); */
   h = lookup_hash (ins1, 0);
   get_operands (h->ops, ins1);
   State.ins_type = (leftright == LEFT_FIRST) ? INS_LEFT : INS_RIGHT;
+  ins_type_counters[ (int)State.ins_type ]++;
   (h->ops->func)();
   h = lookup_hash (ins2, 0);
   get_operands (h->ops, ins2);
   State.ins_type = (leftright == LEFT_FIRST) ? INS_RIGHT : INS_LEFT;
+  ins_type_counters[ (int)State.ins_type ]++;
   (h->ops->func)();
 }
 static void
@@ -172,7 +186,10 @@ do_parallel (ins1, ins2)
      uint16 ins1, ins2;
 {
   struct hash_entry *h1, *h2;
-  /* printf ("do_parallel %x || %x\n",ins1,ins2); */
+#ifdef DEBUG
+  if ((d10v_debug & DEBUG_INSTRUCTION) != 0)
+    (*d10v_callback->printf_filtered) (d10v_callback, "do_parallel 0x%x || 0x%x\n", ins1, ins2);
+#endif
   h1 = lookup_hash (ins1, 0);
   h2 = lookup_hash (ins2, 0);
 
@@ -180,6 +197,7 @@ do_parallel (ins1, ins2)
     {
       get_operands (h1->ops, ins1);
       State.ins_type = INS_LEFT;
+      ins_type_counters[ (int)State.ins_type ]++;
       (h1->ops->func)();
       if (State.exe)
 	{
@@ -192,6 +210,7 @@ do_parallel (ins1, ins2)
     {
       get_operands (h2->ops, ins2);
       State.ins_type = INS_RIGHT;
+      ins_type_counters[ (int)State.ins_type ]++;
       (h2->ops->func)();
       if (State.exe)
 	{
@@ -204,9 +223,11 @@ do_parallel (ins1, ins2)
     {
       get_operands (h1->ops, ins1);
       State.ins_type = INS_LEFT_PARALLEL;
+      ins_type_counters[ (int)State.ins_type ]++;
       (h1->ops->func)();
       get_operands (h2->ops, ins2);
       State.ins_type = INS_RIGHT_PARALLEL;
+      ins_type_counters[ (int)State.ins_type ]++;
       (h2->ops->func)();
     }
 }
@@ -227,12 +248,16 @@ sim_size (power)
   State.dmem = (uint8 *)calloc(1,1<<DMEM_SIZE);
   if (!State.imem || !State.dmem )
     {
-      fprintf (stderr,"Memory allocation failed.\n");
+      (*d10v_callback->printf_filtered) (d10v_callback, "Memory allocation failed.\n");
       exit(1);
     }
-#if (DEBUG & DEBUG_MEMSIZE) != 0
-  printf ("Allocated %d bytes instruction memory and\n",1<<IMEM_SIZE);
-  printf ("          %d bytes data memory.\n",1<<DMEM_SIZE);
+
+#ifdef DEBUG
+  if ((d10v_debug & DEBUG_MEMSIZE) != 0)
+    {
+      (*d10v_callback->printf_filtered) (d10v_callback, "Allocated %d bytes instruction memory and\n",1<<IMEM_SIZE);
+      (*d10v_callback->printf_filtered) (d10v_callback, "          %d bytes data memory.\n",          1<<DMEM_SIZE);
+    }
 #endif
 }
 
@@ -252,7 +277,7 @@ sim_write (addr, buffer, size)
   int i;
   init_system ();
 
-  /* printf ("sim_write %d bytes to 0x%x\n",size,addr); */
+  /* (*d10v_callback->printf_filtered) (d10v_callback, "sim_write %d bytes to 0x%x\n",size,addr); */
   for (i = 0; i < size; i++)
     {
       State.imem[i+addr] = buffer[i]; 
@@ -267,7 +292,7 @@ sim_open (args)
   struct simops *s;
   struct hash_entry *h, *prev;
   if (args != NULL)
-      printf ("sim_open %s\n",args);
+    (*d10v_callback->printf_filtered) (d10v_callback, "sim_open %s\n",args);
 
   /* put all the opcodes in the hash table */
   for (s = Simops; s->func; s++)
@@ -301,14 +326,14 @@ void
 sim_set_profile (n)
      int n;
 {
-  printf ("sim_set_profile %d\n",n);
+  (*d10v_callback->printf_filtered) (d10v_callback, "sim_set_profile %d\n",n);
 }
 
 void
 sim_set_profile_size (n)
      int n;
 {
-  printf ("sim_set_profile_size %d\n",n);
+  (*d10v_callback->printf_filtered) (d10v_callback, "sim_set_profile_size %d\n",n);
 }
 
 void
@@ -319,7 +344,7 @@ sim_resume (step, siggnal)
   int i;
   reg_t oldpc;
 
-/*   printf ("sim_resume (%d,%d)  PC=0x%x\n",step,siggnal,PC); */
+/*   (*d10v_callback->printf_filtered) (d10v_callback, "sim_resume (%d,%d)  PC=0x%x\n",step,siggnal,PC); */
 
  if (step)
    State.exception = SIGTRAP;
@@ -368,15 +393,47 @@ sim_resume (step, siggnal)
 int
 sim_trace ()
 {
-  printf ("sim_trace\n");
-  return 0;
+#ifdef DEBUG
+  d10v_debug = DEBUG;
+#endif
+  sim_resume (0, 0);
+  return 1;
 }
 
 void
 sim_info (verbose)
      int verbose;
 {
-  printf ("sim_info\n");
+  char buf[40];
+  int size;
+  long total = (ins_type_counters[ (int)INS_LONG ]
+		+ ins_type_counters[ (int)INS_LEFT ]
+		+ ins_type_counters[ (int)INS_LEFT_PARALLEL ]
+		+ ins_type_counters[ (int)INS_RIGHT ]
+		+ ins_type_counters[ (int)INS_RIGHT_PARALLEL ]);
+
+  sprintf (buf, "%ld", total);
+  size = strlen (buf);
+
+  (*d10v_callback->printf_filtered) (d10v_callback,
+				     "executed %*ld instructions in the left  container, %*ld parallel, %*ld nops\n",
+				     size, ins_type_counters[ (int)INS_LEFT ] + ins_type_counters[ (int)INS_LEFT_PARALLEL ],
+				     size, ins_type_counters[ (int)INS_LEFT_PARALLEL ],
+				     size, left_nops);
+
+  (*d10v_callback->printf_filtered) (d10v_callback,
+				     "executed %*ld instructions in the right container, %*ld parallel, %*ld nops\n",
+				     size, ins_type_counters[ (int)INS_RIGHT ] + ins_type_counters[ (int)INS_RIGHT_PARALLEL ],
+				     size, ins_type_counters[ (int)INS_RIGHT_PARALLEL ],
+				     size, right_nops);
+
+  (*d10v_callback->printf_filtered) (d10v_callback,
+				     "executed %*ld long instructions\n",
+				     size, ins_type_counters[ (int)INS_LONG ]);
+
+  (*d10v_callback->printf_filtered) (d10v_callback,
+				     "executed %*ld total instructions\n",
+				     size, total);
 }
 
 void
@@ -385,7 +442,10 @@ sim_create_inferior (start_address, argv, env)
      char **argv;
      char **env;
 {
-  printf ("sim_create_inferior:  PC=0x%x\n",start_address);
+#ifdef DEBUG
+  if (d10v_debug)
+    (*d10v_callback->printf_filtered) (d10v_callback, "sim_create_inferior:  PC=0x%x\n", start_address);
+#endif
   PC = start_address >> 2;
 }
 
@@ -409,7 +469,7 @@ sim_stop_reason (reason, sigrc)
      enum sim_stop *reason;
      int *sigrc;
 {
-/*   printf ("sim_stop_reason:  PC=0x%x\n",PC<<2); */
+/*   (*d10v_callback->printf_filtered) (d10v_callback, "sim_stop_reason:  PC=0x%x\n",PC<<2); */
 
   if (State.exception == SIGQUIT)
     {
@@ -431,12 +491,12 @@ sim_fetch_register (rn, memory)
   if (rn > 31)
     {
       WRITE_64 (memory, State.a[rn-32]);
-      /* printf ("sim_fetch_register %d 0x%llx\n",rn,State.a[rn-32]); */
+      /* (*d10v_callback->printf_filtered) (d10v_callback, "sim_fetch_register %d 0x%llx\n",rn,State.a[rn-32]); */
     }
   else
     {
       WRITE_16 (memory, State.regs[rn]);
-      /* printf ("sim_fetch_register %d 0x%x\n",rn,State.regs[rn]); */
+      /* (*d10v_callback->printf_filtered) (d10v_callback, "sim_fetch_register %d 0x%x\n",rn,State.regs[rn]); */
     }
 }
  
@@ -448,12 +508,12 @@ sim_store_register (rn, memory)
   if (rn > 31)
     {
       State.a[rn-32] =  READ_64 (memory) & MASK40;
-      /* printf ("store: a%d=0x%llx\n",rn-32,State.a[rn-32]); */
+      /* (*d10v_callback->printf_filtered) (d10v_callback, "store: a%d=0x%llx\n",rn-32,State.a[rn-32]); */
     }
   else
     {
       State.regs[rn]= READ_16 (memory);
-      /* printf ("store: r%d=0x%x\n",rn,State.regs[rn]); */
+      /* (*d10v_callback->printf_filtered) (d10v_callback, "store: r%d=0x%x\n",rn,State.regs[rn]); */
     }
 }
 
@@ -474,7 +534,7 @@ void
 sim_do_command (cmd)
      char *cmd;
 { 
-  printf("sim_do_command: %s\n",cmd);
+  (*d10v_callback->printf_filtered) (d10v_callback, "sim_do_command: %s\n",cmd);
 }
 
 int
diff --git a/sim/d10v/simops.c b/sim/d10v/simops.c
index 16ac932..faf7d7d 100644
--- a/sim/d10v/simops.c
+++ b/sim/d10v/simops.c
@@ -31,7 +31,7 @@ enum op_types {
   OP_PREDEC
 };
 
-#if (DEBUG & DEBUG_TRACE) != 0
+#ifdef DEBUG
 static void trace_input PARAMS ((char *name,
 				 enum op_types in1,
 				 enum op_types in2,
@@ -66,6 +66,9 @@ trace_input (name, in1, in2, in3)
   long tmp;
   char *type;
 
+  if ((d10v_debug & DEBUG_TRACE) == 0)
+    return;
+
   switch (State.ins_type)
     {
     default:
@@ -77,7 +80,10 @@ trace_input (name, in1, in2, in3)
     case INS_LONG:		type = " B"; break;
     }
 
-  printf ("0x%.6x %s:  %-*s", (unsigned)PC, type, SIZE_INSTRUCTION, name);
+  (*d10v_callback->printf_filtered) (d10v_callback,
+				     "0x%.6x %s:  %-*s",
+				     (unsigned)PC, type,
+				     SIZE_INSTRUCTION, name);
 
   in[0] = in1;
   in[1] = in2;
@@ -180,150 +186,164 @@ trace_input (name, in1, in2, in3)
 	}
     }
 
-#if (DEBUG & DEBUG_VALUES) == 0
-  *p++ = '\n';
-  *p = '\0';
-  fputs (buf, stdout);
+  if ((d10v_debug & DEBUG_VALUES) == 0)
+    {
+      *p++ = '\n';
+      *p = '\0';
+      (*d10v_callback->printf_filtered) (d10v_callback, "%s", buf);
+    }
+  else
+    {
+      *p = '\0';
+      (*d10v_callback->printf_filtered) (d10v_callback, "%-*s", SIZE_OPERANDS, buf);
 
-#else	/* DEBUG_VALUES */
-  *p = '\0';
-  printf ("%-*s", SIZE_OPERANDS, buf);
+      p = buf;
+      for (i = 0; i < 3; i++)
+	{
+	  buf[0] = '\0';
+	  switch (in[i])
+	    {
+	    case OP_VOID:
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s", SIZE_VALUES, "");
+	      break;
+
+	    case OP_REG_OUTPUT:
+	    case OP_DREG_OUTPUT:
+	    case OP_CR_OUTPUT:
+	    case OP_ACCUM_OUTPUT:
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s", SIZE_VALUES, "---");
+	      break;
+
+	    case OP_REG:
+	    case OP_MEMREF:
+	    case OP_POSTDEC:
+	    case OP_POSTINC:
+	    case OP_PREDEC:
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s0x%.4x", SIZE_VALUES-6, "",
+						 (uint16)State.regs[OP[i]]);
+	      break;
+
+	    case OP_DREG:
+	      tmp = (long)((((uint32) State.regs[OP[i]]) << 16) | ((uint32) State.regs[OP[i]+1]));
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s0x%.8lx", SIZE_VALUES-10, "", tmp);
+	      break;
+
+	    case OP_CR:
+	    case OP_CR_REVERSE:
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s0x%.4x", SIZE_VALUES-6, "",
+						 (uint16)State.cregs[OP[i]]);
+	      break;
+
+	    case OP_ACCUM:
+	    case OP_ACCUM_REVERSE:
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s0x%.2x%.8lx", SIZE_VALUES-12, "",
+						 ((int)(State.a[OP[i]] >> 32) & 0xff),
+						 ((unsigned long)State.a[OP[i]]) & 0xffffffff);
+	      break;
+
+	    case OP_CONSTANT16:
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s0x%.4x", SIZE_VALUES-6, "",
+						 (uint16)OP[i]);
+	      break;
+
+	    case OP_CONSTANT4:
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s0x%.4x", SIZE_VALUES-6, "",
+						 (uint16)SEXT4(OP[i]));
+	      break;
+
+	    case OP_CONSTANT3:
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s0x%.4x", SIZE_VALUES-6, "",
+						 (uint16)SEXT3(OP[i]));
+	      break;
+
+	    case OP_FLAG:
+	      if (OP[i] == 0)
+		(*d10v_callback->printf_filtered) (d10v_callback, "%*sF0 = %d", SIZE_VALUES-6, "",
+						   State.F0 != 0);
+
+	      else if (OP[i] == 1)
+		(*d10v_callback->printf_filtered) (d10v_callback, "%*sF1 = %d", SIZE_VALUES-6, "",
+						   State.F1 != 0);
+
+	      else
+		(*d10v_callback->printf_filtered) (d10v_callback, "%*sC = %d", SIZE_VALUES-5, "",
+						   State.C != 0);
+
+	      break;
+
+	    case OP_MEMREF2:
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s0x%.4x", SIZE_VALUES-6, "",
+						 (uint16)OP[i]);
+	      (*d10v_callback->printf_filtered) (d10v_callback, "%*s0x%.4x", SIZE_VALUES-6, "",
+						 (uint16)State.regs[OP[++i]]);
+	      break;
+	    }
+	}
+    }
+}
 
-  p = buf;
-  for (i = 0; i < 3; i++)
+static void
+trace_output (result)
+     enum op_types result;
+{
+  if ((d10v_debug & (DEBUG_TRACE | DEBUG_VALUES)) == (DEBUG_TRACE | DEBUG_VALUES))
     {
-      buf[0] = '\0';
-      switch (in[i])
-	{
-	case OP_VOID:
-	  printf ("%*s", SIZE_VALUES, "");
-	  break;
+      long tmp;
 
-	case OP_REG_OUTPUT:
-	case OP_DREG_OUTPUT:
-	case OP_CR_OUTPUT:
-	case OP_ACCUM_OUTPUT:
-	  printf ("%*s", SIZE_VALUES, "---");
+      switch (result)
+	{
+	default:
+	  putchar ('\n');
 	  break;
 
 	case OP_REG:
-	case OP_MEMREF:
-	case OP_POSTDEC:
-	case OP_POSTINC:
-	case OP_PREDEC:
-	  printf ("%*s0x%.4x", SIZE_VALUES-6, "", (uint16)State.regs[OP[i]]);
+	case OP_REG_OUTPUT:
+	  (*d10v_callback->printf_filtered) (d10v_callback, " :: %*s0x%.4x F0=%d F1=%d C=%d\n", SIZE_VALUES-6, "",
+					     (uint16)State.regs[OP[0]],
+					     State.F0 != 0, State.F1 != 0, State.C != 0);
 	  break;
 
 	case OP_DREG:
-	  tmp = (long)((((uint32) State.regs[OP[i]]) << 16) | ((uint32) State.regs[OP[i]+1]));
-	  printf ("%*s0x%.8lx", SIZE_VALUES-10, "", tmp);
+	case OP_DREG_OUTPUT:
+	  tmp = (long)((((uint32) State.regs[OP[0]]) << 16) | ((uint32) State.regs[OP[0]+1]));
+	  (*d10v_callback->printf_filtered) (d10v_callback, " :: %*s0x%.8lx F0=%d F1=%d C=%d\n", SIZE_VALUES-10, "", tmp,
+					     State.F0 != 0, State.F1 != 0, State.C != 0);
 	  break;
 
 	case OP_CR:
-	case OP_CR_REVERSE:
-	  printf ("%*s0x%.4x", SIZE_VALUES-6, "", (uint16)State.cregs[OP[i]]);
-	  break;
-
-	case OP_ACCUM:
-	case OP_ACCUM_REVERSE:
-	  printf ("%*s0x%.2x%.8lx", SIZE_VALUES-12, "",
-		  ((int)(State.a[OP[i]] >> 32) & 0xff),
-		  ((unsigned long)State.a[OP[i]]) & 0xffffffff);
+	case OP_CR_OUTPUT:
+	  (*d10v_callback->printf_filtered) (d10v_callback, " :: %*s0x%.4x F0=%d F1=%d C=%d\n", SIZE_VALUES-6, "",
+					     (uint16)State.cregs[OP[0]],
+					     State.F0 != 0, State.F1 != 0, State.C != 0);
 	  break;
 
-	case OP_CONSTANT16:
-	  printf ("%*s0x%.4x", SIZE_VALUES-6, "", (uint16)OP[i]);
+	case OP_CR_REVERSE:
+	  (*d10v_callback->printf_filtered) (d10v_callback, " :: %*s0x%.4x F0=%d F1=%d C=%d\n", SIZE_VALUES-6, "",
+					     (uint16)State.cregs[OP[1]],
+					     State.F0 != 0, State.F1 != 0, State.C != 0);
 	  break;
 
-	case OP_CONSTANT4:
-	  printf ("%*s0x%.4x", SIZE_VALUES-6, "", (uint16)SEXT4(OP[i]));
+	case OP_ACCUM:
+	case OP_ACCUM_OUTPUT:
+	  (*d10v_callback->printf_filtered) (d10v_callback, " :: %*s0x%.2x%.8lx F0=%d F1=%d C=%d\n", SIZE_VALUES-10, "",
+					     ((int)(State.a[OP[0]] >> 32) & 0xff),
+					     ((unsigned long)State.a[OP[0]]) & 0xffffffff,
+					     State.F0 != 0, State.F1 != 0, State.C != 0);
 	  break;
 
-	case OP_CONSTANT3:
-	  printf ("%*s0x%.4x", SIZE_VALUES-6, "", (uint16)SEXT3(OP[i]));
+	case OP_ACCUM_REVERSE:
+	  (*d10v_callback->printf_filtered) (d10v_callback, " :: %*s0x%.2x%.8lx F0=%d F1=%d C=%d\n", SIZE_VALUES-10, "",
+					     ((int)(State.a[OP[1]] >> 32) & 0xff),
+					     ((unsigned long)State.a[OP[1]]) & 0xffffffff,
+					     State.F0 != 0, State.F1 != 0, State.C != 0);
 	  break;
 
 	case OP_FLAG:
-	  if (OP[i] == 0)
-	    printf ("%*sF0 = %d", SIZE_VALUES-6, "", State.F0 != 0);
-
-	  else if (OP[i] == 1)
-	    printf ("%*sF1 = %d", SIZE_VALUES-6, "", State.F1 != 0);
-
-	  else
-	    printf ("%*sC = %d", SIZE_VALUES-5, "", State.C != 0);
-
-	  break;
-
-	case OP_MEMREF2:
-	  printf ("%*s0x%.4x", SIZE_VALUES-6, "", (uint16)OP[i]);
-	  printf ("%*s0x%.4x", SIZE_VALUES-6, "", (uint16)State.regs[OP[++i]]);
+	  (*d10v_callback->printf_filtered) (d10v_callback, " :: %*s F0=%d F1=%d C=%d\n", SIZE_VALUES, "",
+					     State.F0 != 0, State.F1 != 0, State.C != 0);
 	  break;
 	}
     }
-#endif
-}
-
-static void
-trace_output (result)
-     enum op_types result;
-{
-#if (DEBUG & DEBUG_VALUES) != 0
-  long tmp;
-
-  switch (result)
-    {
-    default:
-      putchar ('\n');
-      break;
-
-    case OP_REG:
-    case OP_REG_OUTPUT:
-      printf (" :: %*s0x%.4x F0=%d F1=%d C=%d\n", SIZE_VALUES-6, "", (uint16)State.regs[OP[0]],
-	      State.F0 != 0, State.F1 != 0, State.C != 0);
-      break;
-
-    case OP_DREG:
-    case OP_DREG_OUTPUT:
-      tmp = (long)((((uint32) State.regs[OP[0]]) << 16) | ((uint32) State.regs[OP[0]+1]));
-      printf (" :: %*s0x%.8lx F0=%d F1=%d C=%d\n", SIZE_VALUES-10, "", tmp,
-	      State.F0 != 0, State.F1 != 0, State.C != 0);
-      break;
-
-    case OP_CR:
-    case OP_CR_OUTPUT:
-      printf (" :: %*s0x%.4x F0=%d F1=%d C=%d\n", SIZE_VALUES-6, "", (uint16)State.cregs[OP[0]],
-	      State.F0 != 0, State.F1 != 0, State.C != 0);
-      break;
-
-    case OP_CR_REVERSE:
-      printf (" :: %*s0x%.4x F0=%d F1=%d C=%d\n", SIZE_VALUES-6, "", (uint16)State.cregs[OP[1]],
-	      State.F0 != 0, State.F1 != 0, State.C != 0);
-      break;
-
-    case OP_ACCUM:
-    case OP_ACCUM_OUTPUT:
-      printf (" :: %*s0x%.2x%.8lx F0=%d F1=%d C=%d\n", SIZE_VALUES-10, "",
-	      ((int)(State.a[OP[0]] >> 32) & 0xff),
-	      ((unsigned long)State.a[OP[0]]) & 0xffffffff,
-	      State.F0 != 0, State.F1 != 0, State.C != 0);
-      break;
-
-    case OP_ACCUM_REVERSE:
-      printf (" :: %*s0x%.2x%.8lx F0=%d F1=%d C=%d\n", SIZE_VALUES-10, "",
-	      ((int)(State.a[OP[1]] >> 32) & 0xff),
-	      ((unsigned long)State.a[OP[1]]) & 0xffffffff,
-	      State.F0 != 0, State.F1 != 0, State.C != 0);
-      break;
-
-    case OP_FLAG:
-      printf (" :: %*s F0=%d F1=%d C=%d\n", SIZE_VALUES, "",
-	      State.F0 != 0, State.F1 != 0, State.C != 0);
-      break;
-    }
-
-  fflush (stdout);
-#endif
 }
 
 #else
@@ -836,7 +856,7 @@ OP_4E09 ()
 void
 OP_5F20 ()
 {
-  printf("***** DBT *****  PC=%x\n",PC);
+  d10v_callback->printf_filtered(d10v_callback, "***** DBT *****  PC=%x\n",PC);
   State.exception = SIGTRAP;
 }
 
@@ -1601,7 +1621,9 @@ OP_5600 ()
       State.C = PSW & 1;
       if (State.ST && !State.FX)
 	{
-	  fprintf (stderr,"ERROR at PC 0x%x: ST can only be set when FX is set.\n",PC<<2);
+	  (*d10v_callback->printf_filtered) (d10v_callback,
+					     "ERROR at PC 0x%x: ST can only be set when FX is set.\n",
+					     PC<<2);
 	  State.exception = SIGILL;
 	}
     }
@@ -1655,6 +1677,11 @@ OP_5E00 ()
 {
   trace_input ("nop", OP_VOID, OP_VOID, OP_VOID);
   trace_output (OP_VOID);
+
+  if (State.ins_type == INS_LEFT || State.ins_type == INS_LEFT_PARALLEL)
+    left_nops++;
+  else
+    right_nops++;
 }
 
 /* not */
@@ -1694,7 +1721,9 @@ OP_5201 ()
   trace_input ("rac", OP_DREG_OUTPUT, OP_ACCUM, OP_CONSTANT3);
   if (OP[1] != 0)
     {
-      fprintf (stderr,"ERROR at PC 0x%x: instruction only valid for A0\n",PC<<2);
+      (*d10v_callback->printf_filtered) (d10v_callback,
+					 "ERROR at PC 0x%x: instruction only valid for A0\n",
+					 PC<<2);
       State.exception = SIGILL;
     }
 
@@ -1769,12 +1798,12 @@ OP_27000000 ()
   State.RP = 1;
   if (RPT_C == 0)
     {
-      fprintf (stderr, "ERROR: rep with count=0 is illegal.\n");
+      (*d10v_callback->printf_filtered) (d10v_callback, "ERROR: rep with count=0 is illegal.\n");
       State.exception = SIGILL;
     }
   if (OP[1] < 4)
     {
-      fprintf (stderr, "ERROR: rep must include at least 4 instructions.\n");
+      (*d10v_callback->printf_filtered) (d10v_callback, "ERROR: rep must include at least 4 instructions.\n");
       State.exception = SIGILL;
     }
   trace_output (OP_VOID);
@@ -1791,12 +1820,12 @@ OP_2F000000 ()
   State.RP = 1;
   if (RPT_C == 0)
     {
-      fprintf (stderr, "ERROR: repi with count=0 is illegal.\n");
+      (*d10v_callback->printf_filtered) (d10v_callback, "ERROR: repi with count=0 is illegal.\n");
       State.exception = SIGILL;
     }
   if (OP[1] < 4)
     {
-      fprintf (stderr, "ERROR: repi must include at least 4 instructions.\n");
+      (*d10v_callback->printf_filtered) (d10v_callback, "ERROR: repi must include at least 4 instructions.\n");
       State.exception = SIGILL;
     }
   trace_output (OP_VOID);
@@ -1806,7 +1835,7 @@ OP_2F000000 ()
 void
 OP_5F60 ()
 {
-  fprintf(stderr, "ERROR: rtd - NOT IMPLEMENTED\n");
+  d10v_callback->printf_filtered(d10v_callback, "ERROR: rtd - NOT IMPLEMENTED\n");
   State.exception = SIGILL;
 }
 
@@ -2064,7 +2093,7 @@ OP_6C1F ()
   trace_input ("st", OP_REG, OP_PREDEC, OP_VOID);
   if ( OP[1] != 15 )
     {
-      fprintf (stderr,"ERROR: cannot pre-decrement any registers but r15 (SP).\n");
+      (*d10v_callback->printf_filtered) (d10v_callback, "ERROR: cannot pre-decrement any registers but r15 (SP).\n");
       State.exception = SIGILL;
       return;
     }
@@ -2120,7 +2149,7 @@ OP_6E1F ()
   trace_input ("st2w", OP_REG, OP_PREDEC, OP_VOID);
   if ( OP[1] != 15 )
     {
-      fprintf (stderr,"ERROR: cannot pre-decrement any registers but r15 (SP).\n");
+      (*d10v_callback->printf_filtered) (d10v_callback, "ERROR: cannot pre-decrement any registers but r15 (SP).\n");
       State.exception = SIGILL;
       return;
     }
@@ -2367,7 +2396,7 @@ OP_5F00 ()
   switch (OP[0])
     {
     default:
-      fprintf (stderr, "Unknown trap code %d\n", OP[0]);
+      (*d10v_callback->printf_filtered) (d10v_callback, "Unknown trap code %d\n", OP[0]);
       State.exception = SIGILL;
 
     case 0:
@@ -2542,7 +2571,10 @@ OP_5F00 ()
       /* Trap 2 calls printf */
       {
 	char *fstr = State.regs[2] + State.imem;
-	printf (fstr, (int16)State.regs[3], (int16)State.regs[4], (int16)State.regs[5]);
+	(*d10v_callback->printf_filtered) (d10v_callback, fstr,
+					   (int16)State.regs[3],
+					   (int16)State.regs[4],
+					   (int16)State.regs[5]);
 	break;
       }