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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [hal/] [h8300/] [h8300h/] [v2_0/] [include/] [variant.inc] - Rev 174

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#ifndef CYGONCE_HAL_VARIANT_INC
#define CYGONCE_HAL_VARIANT_INC
##=============================================================================
##
##      variant.inc
##
##      H8/300H assembler header file
##
##=============================================================================
#####ECOSGPLCOPYRIGHTBEGIN####
## -------------------------------------------
## This file is part of eCos, the Embedded Configurable Operating System.
## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
##
## eCos is free software; you can redistribute it and/or modify it under
## the terms of the GNU General Public License as published by the Free
## Software Foundation; either version 2 or (at your option) any later version.
##
## eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
##
## As a special exception, if other files instantiate templates or use macros
## or inline functions from this file, or you compile this file and link it
## with other works to produce a work based on this file, this file does not
## by itself cause the resulting work to be covered by the GNU General Public
## License. However the source code for this file must still be made available
## in accordance with section (3) of the GNU General Public License.
##
## This exception does not invalidate any other reasons why a work based on
## this file might be covered by the GNU General Public License.
##
## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
## at http://sources.redhat.com/ecos/ecos-license/
## -------------------------------------------
#####ECOSGPLCOPYRIGHTEND####
##=============================================================================
#######DESCRIPTIONBEGIN####
##
## Author(s):   nickg
## Contributors:        nickg
## Date:        1999-04-06
## Purpose:     H8/300H definitions.
## Description: This file contains various definitions and macros that are
##              useful for writing assembly code for the H8/300H CPU variant.
## Usage:
##              #include <cyg/hal/variant.inc>
##              ...
##              
##
######DESCRIPTIONEND####
##
##=============================================================================

#include <pkgconf/hal.h>

#include <cyg/hal/platform.inc>


#------------------------------------------------------------------------------
# Register definitions

#define SYSCR 0xfee012

#------------------------------------------------------------------------------
# CPU state save and restore macros

        .macro  hal_cpu_save_all
        stc     ccr,@-sp
        subs    #2,sp
        subs    #4,sp
        mov.l   er6,@-sp                # push all registers
        mov.l   er5,@-sp
        mov.l   er4,@-sp
        mov.l   er3,@-sp
        mov.l   er2,@-sp
        mov.l   er1,@-sp
        mov.l   er0,@-sp
        .endm

        .macro  hal_cpu_load_all
        mov.l   @sp+,er0                # pop regs
        mov.l   @sp+,er1
        mov.l   @sp+,er2
        mov.l   @sp+,er3
        mov.l   @sp+,er4
        mov.l   @sp+,er5
        mov.l   @sp+,er6
        adds    #4,sp
        adds    #2,sp
        ldc     @sp+,ccr        
        .endm


# Location of PC in saved register context (HAL_SavedRegisters)
#define SAVED_CONTEXT_PC_OFFSET          36

##-----------------------------------------------------------------------------
# Default interrupt decoding macros.

#ifndef CYGPKG_HAL_H8300_INTC_DEFINED
        
#define CYG_ISR_TABLE_SIZE       64

        .macro  hal_intc_init
        mov.b   @SYSCR,r0l
        bclr    #3,r0l
        mov.b   r0l,@SYSCR
        .endm

#define CYGPKG_HAL_H8300_INTC_DEFINED

#endif


        
#ifndef CYGPKG_HAL_H8300_MON_DEFINED

        .macro  hal_mon_init
        .endm

#if !(defined(CYG_HAL_STARTUP_ROM)              || \
        defined(CYGPKG_HAL_H8300_H8300H_SIM)    || \
        !defined(CYGSEM_HAL_USE_ROM_MONITOR))

#define CYG_HAL_H8300_VSR_TABLE_DEFINED

#endif



#define CYGPKG_HAL_H8300_MON_DEFINED

#endif  



#------------------------------------------------------------------------------
#endif // ifndef CYGONCE_HAL_VARIANT_INC
# end of variant.inc

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