new file mode 100644
--- /dev/null
+++ b/packages/hal/mn10300/stdeval1/current/src/plf_misc.c
@@ -0,0 +1,149 @@
+//==========================================================================
+//
+//      plf_misc.c
+//
+//      HAL platform miscellaneous functions
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//
+// -------------------------------------------
+// The contents of this file are subject to the Cygnus eCos Public License
+// Version 1.0 (the "License"); you may not use this file except in
+// compliance with the License.  You may obtain a copy of the License at
+// http://sourceware.cygnus.com/ecos
+// 
+// Software distributed under the License is distributed on an "AS IS"
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+// License for the specific language governing rights and limitations under
+// the License.
+// 
+// The Original Code is eCos - Embedded Cygnus Operating System, released
+// September 30, 1998.
+// 
+// The Initial Developer of the Original Code is Cygnus.  Portions created
+// by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions.  All Rights Reserved.
+// -------------------------------------------
+//
+//####COPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    nickg
+// Contributors: nickg, jlarmour
+// Date:         1999-01-21
+// Purpose:      HAL miscellaneous functions
+// Description:  This file contains miscellaneous functions provided by the
+//               HAL.
+//
+//####DESCRIPTIONEND####
+//
+//========================================================================*/
+
+#include <pkgconf/hal.h>
+
+#include <cyg/infra/cyg_type.h>         // Base types
+#include <cyg/infra/cyg_trac.h>         // tracing macros
+#include <cyg/infra/cyg_ass.h>          // assertion macros
+
+#include <cyg/hal/hal_arch.h>           // architectural definitions
+
+#include <cyg/hal/hal_intr.h>           // Interrupt handling
+
+#include <cyg/hal/hal_cache.h>          // Cache handling
+
+/*------------------------------------------------------------------------*/
+
+void hal_platform_init(void)
+{
+    // Note that the hardware seems to come up with the
+    // caches containing random data. Hence they must be
+    // invalidated before being enabled.
+    
+    HAL_ICACHE_INVALIDATE_ALL();    
+    HAL_ICACHE_ENABLE();
+    HAL_DCACHE_INVALIDATE_ALL();
+    HAL_DCACHE_ENABLE();
+
+#if defined(CYGPKG_KERNEL)                      && \
+    defined(CYGFUN_HAL_COMMON_KERNEL_SUPPORT)   && \
+    defined(CYG_HAL_USE_ROM_MONITOR)            && \
+    defined(CYG_HAL_USE_ROM_MONITOR_CYGMON)
+    {
+        extern CYG_ADDRESS hal_virtual_vector_table[32];
+        extern void patch_dbg_syscalls(void * vector);
+        patch_dbg_syscalls( (void *)(&hal_virtual_vector_table[0]) );
+    }
+#endif    
+}
+
+/*------------------------------------------------------------------------*/
+/* Functions to support the detection and execution of a user provoked    */
+/* program break. These are usually called from interrupt routines.       */
+
+cyg_bool cyg_hal_is_break(char *buf, int size)
+{
+    while( size )
+        if( buf[--size] == 0x03 ) return true;
+
+    return false;
+}
+
+void cyg_hal_user_break( CYG_ADDRWORD *regs )
+{
+
+#if defined(CYG_HAL_USE_ROM_MONITOR) && defined(CYG_HAL_USE_ROM_MONITOR_GDB_STUBS)
+
+        {
+            extern CYG_ADDRESS hal_virtual_vector_table[64];        
+            typedef void install_bpt_fn(void *pc);
+            CYG_WORD32 retpc = ((CYG_WORD32 *)(&regs))[-1];
+            CYG_WORD32 pc;
+            HAL_SavedRegisters *sreg = (HAL_SavedRegisters *)regs;
+            install_bpt_fn *ibp = (install_bpt_fn *)hal_virtual_vector_table[35];
+
+            if( regs == NULL ) pc = retpc;
+            else pc = sreg->pc;
+
+            if( ibp != NULL ) ibp((void *)pc);
+        }
+    
+#elif defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
+
+    {
+        extern void breakpoint(void);
+        breakpoint();
+    }
+    
+#else
+
+    HAL_BREAKPOINT(breakinst);
+
+#endif
+}
+
+/*------------------------------------------------------------------------*/
+/* Control C ISR support                                                  */
+
+#if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT)
+
+struct Hal_SavedRegisters *hal_saved_interrupt_state;
+
+static void hal_ctrlc_isr_init(void)
+{
+}
+
+cyg_uint32 hal_ctrlc_isr(CYG_ADDRWORD vector, CYG_ADDRWORD data)
+{
+
+//    char c;
+
+    HAL_INTERRUPT_ACKNOWLEDGE( CYGHWR_HAL_GDB_PORT_VECTOR ); 
+
+    return 2;
+}
+
+#endif
+
+/*------------------------------------------------------------------------*/
+/* End of plf_misc.c                                                      */