diff --git a/Makefile.in b/Makefile.in
index ec7abb879..03ded5ff3 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -16,7 +16,7 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.144 2003/02/08 19:49:21 steve Exp $"
+#ident "$Id: Makefile.in,v 1.145 2003/02/17 06:39:47 steve Exp $"
 #
 #
 SHELL = /bin/sh
@@ -212,7 +212,7 @@ else
 WIN32_INSTALL = $(bindir)/iverilog-vpi
 endif
 
-install: all installdirs $(libdir)/ivl/ivl@EXEEXT@ $(libdir)/ivl/iverilog.conf $(includedir)/ivl_target.h $(includedir)/vpi_user.h $(includedir)/acc_user.h $(includedir)/veriuser.h $(WIN32_INSTALL) $(INSTALL_DOC)
+install: all installdirs $(libdir)/ivl/ivl@EXEEXT@ $(libdir)/ivl/iverilog.conf $(includedir)/ivl_target.h $(includedir)/_pli_types.h $(includedir)/vpi_user.h $(includedir)/acc_user.h $(includedir)/veriuser.h $(WIN32_INSTALL) $(INSTALL_DOC)
 	cd vpi ; $(MAKE) install
 	cd ivlpp ; $(MAKE) install
 	cd driver ; $(MAKE) install
@@ -235,6 +235,9 @@ $(libdir)/ivl/iverilog.conf: $(libdir)/ivl/ivl@EXEEXT@
 $(includedir)/ivl_target.h: $(srcdir)/ivl_target.h
 	$(INSTALL_DATA) $(srcdir)/ivl_target.h $(includedir)/ivl_target.h
 
+$(includedir)/_pli_types.h: $(srcdir)/_pli_types.h
+	$(INSTALL_DATA) $(srcdir)/_pli_types.h $(includedir)/_pli_types.h
+
 $(includedir)/vpi_user.h: $(srcdir)/vpi_user.h
 	$(INSTALL_DATA) $(srcdir)/vpi_user.h $(includedir)/vpi_user.h
 
diff --git a/_pli_types.h b/_pli_types.h
new file mode 100644
index 000000000..f378019c0
--- /dev/null
+++ b/_pli_types.h
@@ -0,0 +1,43 @@
+#ifndef PLI_TYPES
+#define PLI_TYPES
+/*
+ * Copyright (c) 2003 Stephen Williams (steve@icarus.com)
+ *
+ *    This source code is free software; you can redistribute it
+ *    and/or modify it in source code form under the terms of the GNU
+ *    General Public License as published by the Free Software
+ *    Foundation; either version 2 of the License, 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
+ */
+#ifdef HAVE_CVS_IDENT
+#ident "$Id: _pli_types.h,v 1.1 2003/02/17 06:39:47 steve Exp $"
+#endif
+
+typedef signed int     PLI_INT32;
+typedef unsigned int   PLI_UINT32;
+typedef signed short   PLI_INT16;
+typedef unsigned short PLI_UINT12;
+typedef signed char    PLI_BYTE8;
+typedef unsigned char  PLI_UBYTE8;
+
+/*
+ * $Log: _pli_types.h,v $
+ * Revision 1.1  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
+ */
+#endif
diff --git a/acc_user.h b/acc_user.h
index 707a298d8..91555fcaf 100644
--- a/acc_user.h
+++ b/acc_user.h
@@ -19,7 +19,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #ifdef HAVE_CVS_IDENT
-#ident "$Id: acc_user.h,v 1.6 2002/08/12 01:34:58 steve Exp $"
+#ident "$Id: acc_user.h,v 1.7 2003/02/17 06:39:47 steve Exp $"
 #endif
 
 /*
@@ -31,6 +31,7 @@
  * implemented using VPI routines.
  */
 
+
 #ifdef __cplusplus
 # define EXTERN_C_START extern "C" {
 # define EXTERN_C_END }
@@ -42,16 +43,24 @@
 
 EXTERN_C_START
 
+# include  "_pli_types.h"
+
 /*
  * This is a declaration of the "handle" type that is compatible with
- * the vpiHandle from vpi_user.h.
+ * the vpiHandle from vpi_user.h. The libveriuser library implements
+ * the acc handle type as a vpiHandle, to prevent useless indirection.
  */
 typedef struct __vpiHandle *handle;
 
 /* OBJECT TYPES */
-#define accScope   21
-#define accScalar  300
-#define accVector  302
+#define accModule    20
+#define accScope     21
+#define accNet       25
+#define accReg       30
+#define accParameter 220
+#define accScalar    300
+#define accVector    302
+#define accConstant  600
 
 /* type VALUES FOR t_setval_delay STRUCTURE */
 #define accNoDelay  0
@@ -105,25 +114,46 @@ typedef struct t_setval_value {
       } value;
 } s_setval_value, *p_setval_value, s_acc_value, *p_acc_value;
 
+typedef struct t_location {
+      PLI_INT32 line_no;
+      const char*filename;
+} s_location, *p_location;
+
 extern int acc_error_flag;
 
 extern int acc_initialize(void);
 
 extern void acc_close(void);
 
+/*
+ * This is the acc_configure command, and the config_param
+ * codes that are accepted.
+ */
+extern int   acc_configure(PLI_INT32 config_param, const char*value);
+#define accDevelopmentVersion 11
+
 extern int   acc_fetch_argc(void);
 extern char**acc_fetch_argv(void);
 
 extern char* acc_fetch_fullname(handle obj);
 
+extern int   acc_fetch_location(p_location loc, handle obj);
+
+extern char* acc_fetch_name(handle obj);
+
 extern int   acc_fetch_tfarg_int(int n);
 extern char* acc_fetch_tfarg_str(int n);
 
+extern PLI_INT32 acc_fetch_type(handle obj);
+extern char* acc_fetch_type_str(PLI_INT32 type);
+
 extern handle acc_handle_tfarg(int n);
+extern handle acc_handle_tfinst(void);
 
 extern handle acc_next_topmod(handle prev_topmod);
 
-extern int acc_object_of_type(handle object, int type);
+extern int acc_object_in_typelist(handle object, PLI_INT32*typelist);
+extern int acc_object_of_type(handle object, PLI_INT32 type);
 
 extern char*acc_product_version(void);
 
@@ -136,6 +166,14 @@ EXTERN_C_END
 
 /*
  * $Log: acc_user.h,v $
+ * Revision 1.7  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
  * Revision 1.6  2002/08/12 01:34:58  steve
  *  conditional ident string using autoconfig.
  *
diff --git a/libveriuser/Makefile.in b/libveriuser/Makefile.in
index bf77bf703..c158b257e 100644
--- a/libveriuser/Makefile.in
+++ b/libveriuser/Makefile.in
@@ -16,7 +16,7 @@
 #    59 Temple Place - Suite 330
 #    Boston, MA 02111-1307, USA
 #
-#ident "$Id: Makefile.in,v 1.15 2002/12/19 21:37:04 steve Exp $"
+#ident "$Id: Makefile.in,v 1.16 2003/02/17 06:39:47 steve Exp $"
 #
 #
 SHELL = /bin/sh
@@ -44,13 +44,14 @@ CFLAGS = @CFLAGS@
 LDFLAGS = @LDFLAGS@
 STRIP = @STRIP@
 
-A = a_close.o a_fetch_argc.o a_fetch_argv.o a_fetch_fullname.o \
-a_fetch_tfarg.o a_handle_tfarg.o \
+A = a_close.o a_configure.o a_fetch_argc.o a_fetch_argv.o a_fetch_fullname.o \
+a_fetch_location.o a_fetch_tfarg.o a_fetch_type.o a_fetch_type_str.o \
+a_handle_tfarg.o \
 a_initialize.o a_next_topmod.o a_object_of_type.o a_product_version.o \
 a_set_value.o a_version.o
 O = asynch.o finish.o getcstringp.o getinstance.o getlongp.o \
 getp.o getsimtime.o io_print.o mc_scan_plusargs.o nump.o putlongp.o \
-putp.o typep.o workarea.o veriusertfs.o $A
+putp.o typep.o workarea.o veriusertfs.o priv.o $A
 
 all: libveriuser.a
 
diff --git a/libveriuser/a_configure.c b/libveriuser/a_configure.c
new file mode 100644
index 000000000..483ab8184
--- /dev/null
+++ b/libveriuser/a_configure.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2003 Stephen Williams (steve@icarus.com)
+ *
+ *    This source code is free software; you can redistribute it
+ *    and/or modify it in source code form under the terms of the GNU
+ *    General Public License as published by the Free Software
+ *    Foundation; either version 2 of the License, 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
+ */
+#ifdef HAVE_CVS_IDENT
+#ident "$Id: a_configure.c,v 1.1 2003/02/17 06:39:47 steve Exp $"
+#endif
+
+#include  <acc_user.h>
+#include  <vpi_user.h>
+
+int acc_configure(PLI_INT32 config_param, const char*value)
+{
+      int rc;
+      switch (config_param) {
+	  case accDevelopmentVersion:
+	    vpi_printf("Request PLI Development Version %s\n", value);
+	    rc = 1;
+	    break;
+
+	  default:
+	    vpi_printf("XXXX acc_configure(%d, %s)\n", config_param, value);
+	    rc = 0;
+	    break;
+      }
+
+      return rc;
+}
+
+/*
+ * $Log: a_configure.c,v $
+ * Revision 1.1  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
+ */
+
diff --git a/libveriuser/a_fetch_fullname.c b/libveriuser/a_fetch_fullname.c
index 68371a1b7..4001d0116 100644
--- a/libveriuser/a_fetch_fullname.c
+++ b/libveriuser/a_fetch_fullname.c
@@ -17,7 +17,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #ifdef HAVE_CVS_IDENT
-#ident "$Id: a_fetch_fullname.c,v 1.2 2002/08/12 01:35:02 steve Exp $"
+#ident "$Id: a_fetch_fullname.c,v 1.3 2003/02/17 06:39:47 steve Exp $"
 #endif
 
 #include  <vpi_user.h>
@@ -28,11 +28,24 @@
  */
 char *acc_fetch_fullname(handle object)
 {
-      return vpi_get_str(vpiFullName, object);
+      return __acc_newstring(vpi_get_str(vpiFullName, object));
+}
+
+char* acc_fetch_name(handle object)
+{
+      return __acc_newstring(vpi_get_str(vpiName, object));
 }
 
 /*
  * $Log: a_fetch_fullname.c,v $
+ * Revision 1.3  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
  * Revision 1.2  2002/08/12 01:35:02  steve
  *  conditional ident string using autoconfig.
  *
diff --git a/libveriuser/a_fetch_location.c b/libveriuser/a_fetch_location.c
new file mode 100644
index 000000000..9b5d62290
--- /dev/null
+++ b/libveriuser/a_fetch_location.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2003 Stephen Williams (steve@icarus.com)
+ *
+ *    This source code is free software; you can redistribute it
+ *    and/or modify it in source code form under the terms of the GNU
+ *    General Public License as published by the Free Software
+ *    Foundation; either version 2 of the License, 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
+ */
+#ifdef HAVE_CVS_IDENT
+#ident "$Id: a_fetch_location.c,v 1.1 2003/02/17 06:39:47 steve Exp $"
+#endif
+
+#include  <acc_user.h>
+#include  <vpi_user.h>
+
+int acc_fetch_location(p_location loc, handle obj)
+{
+      loc->line_no = 0;
+      loc->filename = "<filename>";
+      return 1;
+}
+
+/*
+ * $Log: a_fetch_location.c,v $
+ * Revision 1.1  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
+ */
+
diff --git a/libveriuser/a_fetch_tfarg.c b/libveriuser/a_fetch_tfarg.c
index 7842fc1ab..2a3c56830 100644
--- a/libveriuser/a_fetch_tfarg.c
+++ b/libveriuser/a_fetch_tfarg.c
@@ -17,11 +17,12 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #ifdef HAVE_CVS_IDENT
-#ident "$Id: a_fetch_tfarg.c,v 1.2 2002/08/12 01:35:02 steve Exp $"
+#ident "$Id: a_fetch_tfarg.c,v 1.3 2003/02/17 06:39:47 steve Exp $"
 #endif
 
 #include  <vpi_user.h>
 #include  <acc_user.h>
+#include  "priv.h"
 
 /*
  * acc_fetch_tfarg routines implemented using VPI interface
@@ -64,7 +65,7 @@ char *acc_fetch_tfarg_str(int n)
       if (arg_h) {
 	    value.format=vpiStringVal;
 	    vpi_get_value(arg_h, &value);
-	    rtn = value.value.str; 
+	    rtn = __acc_newstring(value.value.str);
       } else {
 	    rtn = (char *) 0;
       }
@@ -74,6 +75,14 @@ char *acc_fetch_tfarg_str(int n)
 
 /*
  * $Log: a_fetch_tfarg.c,v $
+ * Revision 1.3  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
  * Revision 1.2  2002/08/12 01:35:02  steve
  *  conditional ident string using autoconfig.
  *
diff --git a/libveriuser/a_fetch_type.c b/libveriuser/a_fetch_type.c
new file mode 100644
index 000000000..8cb39ae31
--- /dev/null
+++ b/libveriuser/a_fetch_type.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2003 Stephen Williams (steve@icarus.com)
+ *
+ *    This source code is free software; you can redistribute it
+ *    and/or modify it in source code form under the terms of the GNU
+ *    General Public License as published by the Free Software
+ *    Foundation; either version 2 of the License, 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
+ */
+#ifdef HAVE_CVS_IDENT
+#ident "$Id: a_fetch_type.c,v 1.1 2003/02/17 06:39:47 steve Exp $"
+#endif
+
+# include  <acc_user.h>
+# include  <vpi_user.h>
+# include  <assert.h>
+
+PLI_INT32 acc_fetch_type(handle obj)
+{
+      switch (vpi_get(vpiType, obj)) {
+
+	  case vpiConstant:
+	    return accConstant;
+
+	  case vpiNet:
+	    return accNet;
+
+	  case vpiReg:
+	    return accReg;
+
+	  default:
+	    vpi_printf("XXXX acc_fetch_type(%d) returns what?\n",
+		       vpi_get(vpiType, obj));
+	    return 0;
+      }
+
+      return 0;
+}
+
+/*
+ * $Log: a_fetch_type.c,v $
+ * Revision 1.1  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
+ */
+
diff --git a/libveriuser/a_fetch_type_str.c b/libveriuser/a_fetch_type_str.c
new file mode 100644
index 000000000..52f9cad1f
--- /dev/null
+++ b/libveriuser/a_fetch_type_str.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2003 Stephen Williams (steve@icarus.com)
+ *
+ *    This source code is free software; you can redistribute it
+ *    and/or modify it in source code form under the terms of the GNU
+ *    General Public License as published by the Free Software
+ *    Foundation; either version 2 of the License, 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
+ */
+#ifdef HAVE_CVS_IDENT
+#ident "$Id: a_fetch_type_str.c,v 1.1 2003/02/17 06:39:47 steve Exp $"
+#endif
+
+#include  <assert.h>
+#include  <acc_user.h>
+
+
+char* acc_fetch_type_str(PLI_INT32 type)
+{
+      switch (type) {
+	  case accParameter:
+	    return "accParameter";
+
+	  default:
+	    vpi_printf("XXXX acc_fetch_type_str(%d);\n", type);
+	    return "acc_fetch_type_str(unknown)";
+      }
+
+      return "";
+}
+
+/*
+ * $Log: a_fetch_type_str.c,v $
+ * Revision 1.1  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
+ */
+
diff --git a/libveriuser/a_handle_tfarg.c b/libveriuser/a_handle_tfarg.c
index a51bb1128..52ca11eb4 100644
--- a/libveriuser/a_handle_tfarg.c
+++ b/libveriuser/a_handle_tfarg.c
@@ -17,7 +17,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #ifdef HAVE_CVS_IDENT
-#ident "$Id: a_handle_tfarg.c,v 1.2 2002/08/12 01:35:02 steve Exp $"
+#ident "$Id: a_handle_tfarg.c,v 1.3 2003/02/17 06:39:47 steve Exp $"
 #endif
 
 #include  <acc_user.h>
@@ -46,8 +46,21 @@ handle acc_handle_tfarg(int n)
       return rtn_h;
 }
 
+handle acc_handle_tfinst(void)
+{
+      return vpi_handle(vpiSysTfCall, 0);
+}
+
 /*
  * $Log: a_handle_tfarg.c,v $
+ * Revision 1.3  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
  * Revision 1.2  2002/08/12 01:35:02  steve
  *  conditional ident string using autoconfig.
  *
diff --git a/libveriuser/a_object_of_type.c b/libveriuser/a_object_of_type.c
index ae5ba758d..178a17714 100644
--- a/libveriuser/a_object_of_type.c
+++ b/libveriuser/a_object_of_type.c
@@ -17,7 +17,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #ifdef HAVE_CVS_IDENT
-#ident "$Id: a_object_of_type.c,v 1.2 2002/08/12 01:35:02 steve Exp $"
+#ident "$Id: a_object_of_type.c,v 1.3 2003/02/17 06:39:47 steve Exp $"
 #endif
 
 #include  <assert.h>
@@ -27,7 +27,7 @@
 /*
  * acc_object_of_type implemented using VPI interface
  */
-int acc_object_of_type(handle object, int type)
+int acc_object_of_type(handle object, PLI_INT32 type)
 {
       int vtype;
       int rtn = 0;	/* false */
@@ -36,19 +36,44 @@ int acc_object_of_type(handle object, int type)
       vtype = vpi_get(vpiType, object);
 
       switch (type) {
-	    case accScope:
-		  if (vtype == vpiModule || vtype == vpiNamedBegin ||
-		      vtype == vpiNamedFork || vtype == vpiTask ||
-		      vtype == vpiFunction) rtn = 1;
-		  break;
-	    case accScalar:
-		  if (vtype == vpiReg || vtype == vpiNet)
-			rtn = vpi_get(vpiSize, object) == 1;
-		  break;
-	    case accVector:
-		  if (vtype == vpiReg || vtype == vpiNet)
-			rtn = vpi_get(vpiSize, object) > 1;
-		  break;
+	  case accModule:
+	    if (vtype == vpiModule)
+		  rtn = 1;
+	    break;
+
+	  case accScope:
+	    if (vtype == vpiModule || vtype == vpiNamedBegin ||
+		vtype == vpiNamedFork || vtype == vpiTask ||
+		vtype == vpiFunction) rtn = 1;
+	    break;
+
+	  case accNet:
+	    if (vtype == vpiNet)
+		  rtn = 1;
+	    break;
+
+	  case accReg:
+	    if (vtype == vpiReg)
+		  rtn = 1;
+	    break;
+
+	  case accScalar:
+	    if (vtype == vpiReg || vtype == vpiNet)
+		  rtn = vpi_get(vpiSize, object) == 1;
+	    break;
+
+	  case accVector:
+	    if (vtype == vpiReg || vtype == vpiNet)
+		  rtn = vpi_get(vpiSize, object) > 1;
+	    break;
+
+	  case accParameter:
+#ifdef vpiParameter
+	    if (vtype == vpiParameter)
+		  rtn = 1;
+#endif
+	    break;
+
 	    default:
 		  vpi_printf("acc_object_of_type: Unknown type %d\n", type);
 		  assert(0);
@@ -57,8 +82,29 @@ int acc_object_of_type(handle object, int type)
       return rtn;
 }
 
+int acc_object_in_typelist(handle object, PLI_INT32*typelist)
+{
+      while (typelist[0] != 0) {
+	    int rtn = acc_object_of_type(object, typelist[0]);
+	    if (rtn)
+		  return rtn;
+
+	    typelist += 1;
+      }
+
+      return 0;
+}
+
 /*
  * $Log: a_object_of_type.c,v $
+ * Revision 1.3  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
  * Revision 1.2  2002/08/12 01:35:02  steve
  *  conditional ident string using autoconfig.
  *
diff --git a/libveriuser/priv.c b/libveriuser/priv.c
new file mode 100644
index 000000000..cd8592e94
--- /dev/null
+++ b/libveriuser/priv.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2003 Stephen Williams (steve@icarus.com)
+ *
+ *    This source code is free software; you can redistribute it
+ *    and/or modify it in source code form under the terms of the GNU
+ *    General Public License as published by the Free Software
+ *    Foundation; either version 2 of the License, 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
+ */
+#ifdef HAVE_CVS_IDENT
+#ident "$Id: priv.c,v 1.1 2003/02/17 06:39:47 steve Exp $"
+#endif
+
+# include  "priv.h"
+# include  <string.h>
+# include  <assert.h>
+
+static char string_buffer[8192];
+static unsigned string_fill = 0;
+
+static buffer_reset(void)
+{
+      string_fill = 0;
+}
+
+char* __acc_newstring(const char*txt)
+{
+      char*res;
+      unsigned len;
+
+      if (txt == 0)
+	    return 0;
+
+      len = strlen(txt);
+      assert(len < sizeof string_buffer);
+
+      if ((string_fill + len + 1) >= sizeof string_buffer)
+	    buffer_reset();
+
+      res = string_buffer + string_fill;
+      strcpy(string_buffer + string_fill, txt);
+
+      string_fill += len + 1;
+
+      return res;
+}
+
+/*
+ * $Log: priv.c,v $
+ * Revision 1.1  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
+ */
+
diff --git a/libveriuser/priv.h b/libveriuser/priv.h
new file mode 100644
index 000000000..a6f289ffb
--- /dev/null
+++ b/libveriuser/priv.h
@@ -0,0 +1,43 @@
+#ifndef __priv_H
+#define __priv_H
+/*
+ * Copyright (c) 2003 Stephen Williams (steve@icarus.com)
+ *
+ *    This source code is free software; you can redistribute it
+ *    and/or modify it in source code form under the terms of the GNU
+ *    General Public License as published by the Free Software
+ *    Foundation; either version 2 of the License, 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
+ */
+#ifdef HAVE_CVS_IDENT
+#ident "$Id: priv.h,v 1.1 2003/02/17 06:39:47 steve Exp $"
+#endif
+
+/*
+ * This function implements the acc_ string buffer, by adding the
+ * input string to the buffer, and returning a pointer to the first
+ * character of the new string.
+ */
+extern char* __acc_newstring(const char*txt);
+
+/*
+ * $Log: priv.h,v $
+ * Revision 1.1  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
+ */
+#endif
diff --git a/veriuser.h b/veriuser.h
index 2bb6c38e1..f8076d9e9 100644
--- a/veriuser.h
+++ b/veriuser.h
@@ -19,7 +19,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #ifdef HAVE_CVS_IDENT
-#ident "$Id: veriuser.h,v 1.19 2003/02/16 02:23:22 steve Exp $"
+#ident "$Id: veriuser.h,v 1.20 2003/02/17 06:39:47 steve Exp $"
 #endif
 
 /*
@@ -41,6 +41,7 @@
  * This API is provided by Icarus Verilog only to support legacy software.
  */
 
+
 #ifdef __cplusplus
 # define EXTERN_C_START extern "C" {
 # define EXTERN_C_END }
@@ -56,15 +57,7 @@
 
 EXTERN_C_START
 
-#ifndef PLI_TYPES
-#define PLI_TYPES
-typedef signed int     PLI_INT32;
-typedef unsigned int   PLI_UINT32;
-typedef signed short   PLI_INT16;
-typedef unsigned short PLI_UINT12;
-typedef signed char    PLI_BYTE8;
-typedef unsigned char  PLI_UBYTE8;
-#endif
+# include  "_pli_types.h"
 
 /*
  * defines for tf_message
@@ -258,6 +251,14 @@ EXTERN_C_END
 
 /*
  * $Log: veriuser.h,v $
+ * Revision 1.20  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
  * Revision 1.19  2003/02/16 02:23:22  steve
  *  Change the IV veriusertfs_register to accept table pointers.
  *
diff --git a/vpi_user.h b/vpi_user.h
index 0392df6dc..9b95af8ee 100644
--- a/vpi_user.h
+++ b/vpi_user.h
@@ -19,7 +19,7 @@
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
 #ifdef HAVE_CVS_IDENT
-#ident "$Id: vpi_user.h,v 1.18 2003/02/01 05:50:27 steve Exp $"
+#ident "$Id: vpi_user.h,v 1.19 2003/02/17 06:39:47 steve Exp $"
 #endif
 
 
@@ -45,6 +45,7 @@
 EXTERN_C_START
 
 # include  <stdarg.h>
+# include  "_pli_types.h"
 
 typedef struct __vpiHandle *vpiHandle;
 
@@ -371,6 +372,14 @@ EXTERN_C_END
 
 /*
  * $Log: vpi_user.h,v $
+ * Revision 1.19  2003/02/17 06:39:47  steve
+ *  Add at least minimal implementations for several
+ *  acc_ functions. Add support for standard ACC
+ *  string handling.
+ *
+ *  Add the _pli_types.h header file to carry the
+ *  IEEE1364-2001 standard PLI type declarations.
+ *
  * Revision 1.18  2003/02/01 05:50:27  steve
  *  Make $time and $realtime available to $display uniquely.
  *