new file mode 100644
--- /dev/null
+++ b/packages/hal/sh/arch/current/src/hal_misc.c
@@ -0,0 +1,209 @@
+//==========================================================================
+//
+//      hal_misc.c
+//
+//      HAL miscellaneous functions
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// 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 Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    jskov
+// Contributors: jskov, jlarmour, nickg
+// Date:         1999-04-03
+// 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>
+#include <cyg/infra/cyg_trac.h>         // tracing macros
+#include <cyg/infra/cyg_ass.h>          // assertion macros
+#include <cyg/infra/diag.h>             // diag_printf
+
+#include <cyg/hal/hal_arch.h>           // HAL header
+#include <cyg/hal/hal_cache.h>          // HAL cache
+#if defined(CYGFUN_HAL_COMMON_KERNEL_SUPPORT) && \
+    defined(CYGPKG_HAL_EXCEPTIONS)
+# include <cyg/hal/hal_intr.h>           // HAL interrupts/exceptions
+#endif
+
+//---------------------------------------------------------------------------
+// Functions used during initialization.
+
+#ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
+cyg_bool cyg_hal_stop_constructors;
+#endif
+
+typedef void (*pfunc) (void);
+extern pfunc __CTOR_LIST__[];
+extern pfunc __CTOR_END__[];
+
+void
+cyg_hal_invoke_constructors (void)
+{
+#ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
+    static pfunc *p = &__CTOR_END__[-1];
+    
+    cyg_hal_stop_constructors = 0;
+    for (; p >= __CTOR_LIST__; p--) {
+        (*p) ();
+        if (cyg_hal_stop_constructors) {
+            p--;
+            break;
+        }
+    }
+#else
+    pfunc *p;
+
+    for (p = &__CTOR_END__[-1]; p >= __CTOR_LIST__; p--)
+        (*p) ();
+#endif
+}
+
+//---------------------------------------------------------------------------
+// First level C exception handler.
+
+externC void __handle_exception (void);
+
+externC HAL_SavedRegisters *_hal_registers;
+
+void
+cyg_hal_exception_handler(HAL_SavedRegisters *regs)
+{
+#ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
+
+    // Set the pointer to the registers of the current exception
+    // context. At entry the GDB stub will expand the
+    // HAL_SavedRegisters structure into a (bigger) register array.
+    _hal_registers = regs;
+
+    __handle_exception();
+
+#elif defined(CYGFUN_HAL_COMMON_KERNEL_SUPPORT) && \
+      defined(CYGPKG_HAL_EXCEPTIONS)
+
+    cyg_hal_deliver_exception( regs->event, (CYG_ADDRWORD)regs );
+
+#else
+
+    CYG_FAIL("Exception!!!");
+    
+#endif    
+    
+    return;
+}
+
+//---------------------------------------------------------------------------
+// Default ISR
+externC cyg_uint32
+hal_default_isr(CYG_ADDRWORD vector, CYG_ADDRWORD data)
+{
+    diag_printf("Interrupt: %d\n", vector);
+
+    CYG_FAIL("Spurious Interrupt!!!");
+
+    return 0;
+}
+
+//--------------------------------------------------------------------------
+// Determine the index of the ls bit of the supplied mask.
+
+cyg_uint32
+hal_lsbit_index(cyg_uint32 mask)
+{
+    cyg_uint32 n = mask;
+
+    static const signed char tab[64] =
+    { -1, 0, 1, 12, 2, 6, 0, 13, 3, 0, 7, 0, 0, 0, 0, 14, 10,
+      4, 0, 0, 8, 0, 0, 25, 0, 0, 0, 0, 0, 21, 27 , 15, 31, 11,
+      5, 0, 0, 0, 0, 0, 9, 0, 0, 24, 0, 0 , 20, 26, 30, 0, 0, 0,
+      0, 23, 0, 19, 29, 0, 22, 18, 28, 17, 16, 0
+    };
+
+    n &= ~(n-1UL);
+    n = (n<<16)-n;
+    n = (n<<6)+n;
+    n = (n<<4)+n;
+
+    return tab[n>>26];
+}
+
+//--------------------------------------------------------------------------
+// Determine the index of the ms bit of the supplied mask.
+
+cyg_uint32
+hal_msbit_index(cyg_uint32 mask)
+{
+    cyg_uint32 x = mask;    
+    cyg_uint32 w;
+
+    // Phase 1: make word with all ones from that one to the right
+    x |= x >> 16;
+    x |= x >> 8;
+    x |= x >> 4;
+    x |= x >> 2;
+    x |= x >> 1;
+
+    // Phase 2: calculate number of "1" bits in the word
+    w = (x & 0x55555555) + ((x >> 1) & 0x55555555);
+    w = (w & 0x33333333) + ((w >> 2) & 0x33333333);
+    w = w + (w >> 4);
+    w = (w & 0x000F000F) + ((w >> 8) & 0x000F000F);
+    return (cyg_uint32)((w + (w >> 16)) & 0xFF);
+
+}
+
+//---------------------------------------------------------------------------
+// Idle thread action
+
+void
+hal_idle_thread_action( cyg_uint32 count )
+{
+}
+
+//---------------------------------------------------------------------------
+// Initial cache enabling
+externC void
+cyg_hal_enable_caches(void)
+{
+    // Initialize cache.
+    HAL_UCACHE_INVALIDATE_ALL();    
+
+    // Enable writeback.
+    HAL_UCACHE_WRITE_MODE(HAL_UCACHE_WRITEBACK_MODE);
+
+    // Enable cache.
+    HAL_UCACHE_ENABLE();
+}
+
+//---------------------------------------------------------------------------
+// End of hal_misc.c