new file mode 100644
--- /dev/null
+++ b/packages/hal/powerpc/arch/current/include/ppc.inc
@@ -0,0 +1,153 @@
+##=============================================================================
+##
+##	ppc.inc
+##
+##	PowerPC assembler header file
+##
+##=============================================================================
+#####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 Cygnus Solutions.  All Rights Reserved.
+# -------------------------------------------
+#
+#####COPYRIGHTEND####
+##=============================================================================
+#######DESCRIPTIONBEGIN####
+##
+## Author(s): 	nickg
+## Contributors:	nickg
+## Date:	1997-10-16
+## Purpose:	PowerPC definitions.
+## Description:	This file contains various definitions and macros that are
+##              useful for writing assembly code for the PowerPC
+## Usage:
+##		#include <cyg/hal/ppc.inc>
+##		...
+##		
+##
+######DESCRIPTIONEND####
+##
+##=============================================================================
+
+#------------------------------------------------------------------------------
+# Easier to read names for the registers
+
+	.equ	r0, 0
+	.equ	r1, 1
+	.equ	r2, 2
+	.equ	r3, 3
+	.equ	r4, 4
+	.equ	r5, 5
+	.equ	r6, 6
+	.equ	r7, 7
+	.equ	r8, 8
+	.equ	r9, 9
+	.equ	r10, 10
+	.equ	r11, 11
+	.equ	r12, 12
+	.equ	r13, 13
+	.equ	r14, 14
+	.equ	r15, 15
+	.equ	r16, 16
+	.equ	r17, 17
+	.equ	r18, 18
+	.equ	r19, 19
+	.equ	r20, 20
+	.equ	r21, 21
+	.equ	r22, 22
+	.equ	r23, 23
+	.equ	r24, 24
+	.equ	r25, 25
+	.equ	r26, 26
+	.equ	r27, 27
+	.equ	r28, 28
+	.equ	r29, 29
+	.equ	r30, 30
+	.equ	r31, 31
+
+	.equ	sp, r1
+
+#------------------------------------------------------------------------------
+# The names of some special purpose registers
+
+	.equ	dsisr, 18
+	.equ	dar  , 19
+	.equ	dec  , 22
+	.equ	sprg0, 272
+	.equ	sprg1, 273
+	.equ	sprg2, 274
+	.equ	sprg3, 275
+	.equ	pvr  , 287
+	.equ	hid0 , 1008
+
+#ifdef CYG_HAL_POWERPC_MP860
+	.equ	ic_cst,560
+	.equ	dc_cst,568
+	.equ	der  , 149
+#endif
+
+#------------------------------------------------------------------------------
+# Some useful coding macros
+
+	# Load immediate word, has to be done with 2 instructions
+	.macro	lwi	reg,val
+	lis	\reg,\val@H
+	ori	\reg,\reg,\val@L
+	.endm
+
+	# Move from HID0 hw control register
+	.macro	mfhid0 reg
+	mfspr	\reg,hid0
+	.endm
+
+#------------------------------------------------------------------------------
+# Exception, interrupt and thread context save area layout
+
+	# These first 36 words are common to all
+	# saved states
+	.equ	ppcreg_regs,		0	# 32 integer registers
+	.equ	ppcreg_cr,		32*4
+	.equ	ppcreg_xer,		33*4
+	.equ	ppcreg_lr,		34*4
+	.equ	ppcreg_ctr,		35*4
+	.equ	ppcreg_context_size, 	36*4
+
+	# The following are only saved on exceptions and interrupts
+	.equ	ppcreg_vector,		36*4	# exception vector
+	.equ	ppcreg_msr,		37*4	# MSR at time of exception
+	.equ	ppcreg_pc,		38*4	# PC at time of exception
+
+	# The following are only saved on exceptions, and are for information
+	# only. They are not restored with the rest of the state.
+	.equ	ppcreg_hid0,		39*4	# HID0 HW control register
+	.equ	ppcreg_dar,		40*4	# data address register
+	.equ	ppcreg_dsisr,		41*4	# DSI status register
+	.equ	ppcreg_pvr,		42*4	# processor version
+	.equ	ppcreg_exception_size, 	43*4
+
+	# FIXME possibly need BAT and segment registers here too
+	# FIXME also decide what to do with FP state.
+
+	.equ	ppc_stack_frame_size,	56	# size of a stack frame
+
+	.equ	ppc_exception_safety,	0x100	# safety net for exceptions
+	.equ	ppc_exception_decrement, ppcreg_exception_size+ppc_exception_safety
+
+
+#------------------------------------------------------------------------------
+# end of ppc.inc