OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [ecos-3.0/] [packages/] [hal/] [v85x/] [ceb_v850/] [current/] [src/] [v850flash.S] - Rev 856

Go to most recent revision | Compare with Previous | Blame | View Log

/*=============================================================================
//
//      v850flash.S
//
//      CEB v850 flash boot code
//
//=============================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, 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.,    
// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 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 v2.                                               
//
// This exception does not invalidate any other reasons why a work based    
// on this file might be covered by the GNU General Public License.         
// -------------------------------------------                              
// ####ECOSGPLCOPYRIGHTEND####                                              
//=============================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    jlarmour
// Contributors: 
// Date:         2001-03-21
// Purpose:      Loader image to program into V850 internal flash to allow
//               programming of eCos ROM startup applications into the EPROM.
// Description:  Compile with:
//            v850-elf-gcc -o v850flash.img v850flash.S -Ttext=0 -nostartfiles
//
//####DESCRIPTIONEND####
//
//===========================================================================*/

        .text
        .org 0
        .globl _start // dummy _start to keep linker happy
_start:
        mov 7,r1
        st.b r1,0xFFFFF04C[r0]
        mov 1,r1
        st.b r1,0xFFFFF064[r0]

        jr 0x0FFFF4 // jump to 0x100000
        jr 0x0FFFF2 // jump to 0x100002
        
        .org 0x20
        .rept 0x3E
        jr 0xFFFC0000  // jump to symmetric location in RAM
        nop
        nop
        nop
        nop
        nop
        nop
        .endr

// EOF v850flash.S

Go to most recent revision | Compare with Previous | Blame | View Log

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.