#ifndef CYGONCE_HAL_ARCH_INC
#define CYGONCE_HAL_ARCH_INC
##=============================================================================
##
##	arch.inc
##
##	H8/300 assembler header file
##
##=============================================================================
#####ECOSGPLCOPYRIGHTBEGIN####
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##=============================================================================
#######DESCRIPTIONBEGIN####
##
## Author(s): 	yoshinori sato
## Contributors:	yoshinori sato
## Date:	2002-02-14
## Purpose:	Architecture definitions.
## Description:	This file contains various definitions and macros that are
##              useful for writing assembly code for the H8300 CPU family.
## Usage:
##		#include <cyg/hal/arch.inc>
##		...
##		
##
######DESCRIPTIONEND####
##
##=============================================================================

#include <pkgconf/hal.h>
	
#include <cyg/hal/variant.inc>

##-----------------------------------------------------------------------------
## CPU specific macros. These provide a common assembler interface to
## operations that may have CPU specific implementations on different
## variants of the architecture.		

#ifndef CYGPKG_HAL_H8300_CPU_INIT_DEFINED
	# Initialize CPU
	.macro	hal_cpu_init
	# Set up the PSW
	ldc	#0xc0,ccr
	.endm
#endif

	# Enable interrupts
	.macro hal_cpu_int_enable
	andc	#0x3f,ccr
	.endm		

	# Disable interrupts
	.macro hal_cpu_int_disable
	orc	#0xc0,ccr
	.endm	

	# Merge the interrupt enable state of the status register in
	# \sr with the current sr.
	.macro	hal_cpu_int_merge sr wk=r0l
	and.b	#0xc0,\sr
	stc	ccr,\wk
	bclr	#7,\wk
	or	\sr,\wk
	ldc	\wk,ccr
	.endm

	# Enable further exception processing, and disable
	# interrupt processing.
	.macro hal_cpu_except_enable
	.endm		
	
	# Return from exception.
	.macro	hal_cpu_eret pc,sr
	.endm
	
##-----------------------------------------------------------------------------
# Default interrupt decoding macros.

#ifndef CYGPKG_HAL_H8300_INTC_DEFINED

#ifndef CYGPKG_HAL_H8300_INTC_INIT_DEFINED
	# initialize all interrupts to disabled
	.macro	hal_intc_init
	.endm
#endif

	.macro	hal_intc_decode vnum
	.endm

#endif

#------------------------------------------------------------------------------
# MMU macros.
	
#ifndef CYGPKG_HAL_H8300_MMU_DEFINED

	.macro	hal_mmu_init
	.endm

#endif	

#------------------------------------------------------------------------------
# MEMC macros.
	
#ifndef CYGPKG_HAL_H8300_MEMC_DEFINED

	.macro	hal_memc_init
	.endm

#endif	
	
#------------------------------------------------------------------------------
# Cache macros.
	
#ifndef CYGPKG_HAL_H8300_CACHE_DEFINED

	.macro	hal_cache_init
	.endm

#endif	

#------------------------------------------------------------------------------
# Diagnostics macros.
	
#ifndef CYGPKG_HAL_H8300_DIAG_DEFINED

	.macro	hal_diag_init
	.endm

	.macro	hal_diag_excpt_start
	.endm

	.macro	hal_diag_intr_start
	.endm

	.macro	hal_diag_restore
	.endm

	.macro	hal_diag_data
	.endm
#endif	

#------------------------------------------------------------------------------
# Timer initialization.
	
#ifndef CYGPKG_HAL_H8300_TIMER_DEFINED

	.macro	hal_timer_init
	.endm

#endif	

#------------------------------------------------------------------------------
# Monitor initialization.
	
#ifndef CYGPKG_HAL_H8300_MON_DEFINED

	.macro	hal_mon_init
	.endm

#endif	

#------------------------------------------------------------------------------
#endif // ifndef CYGONCE_HAL_ARCH_INC
# end of arch.inc
