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skrzyp |
/*=============================================================================
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//
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// v850flash.S
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//
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// CEB v850 flash boot code
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//
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//=============================================================================
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// ####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later
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// version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with eCos; if not, write to the Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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//
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// As a special exception, if other files instantiate templates or use
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// macros or inline functions from this file, or you compile this file
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// and link it with other works to produce a work based on this file,
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// this file does not by itself cause the resulting work to be covered by
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// the GNU General Public License. However the source code for this file
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// must still be made available in accordance with section (3) of the GNU
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// General Public License v2.
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//
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// This exception does not invalidate any other reasons why a work based
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// on this file might be covered by the GNU General Public License.
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// -------------------------------------------
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// ####ECOSGPLCOPYRIGHTEND####
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//=============================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): jlarmour
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// Contributors:
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// Date: 2001-03-21
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// Purpose: Loader image to program into V850 internal flash to allow
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// programming of eCos ROM startup applications into the EPROM.
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// Description: Compile with:
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// v850-elf-gcc -o v850flash.img v850flash.S -Ttext=0 -nostartfiles
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//
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//####DESCRIPTIONEND####
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//
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//===========================================================================*/
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.text
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.org 0
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.globl _start // dummy _start to keep linker happy
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_start:
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mov 7,r1
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st.b r1,0xFFFFF04C[r0]
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mov 1,r1
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st.b r1,0xFFFFF064[r0]
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jr 0x0FFFF4 // jump to 0x100000
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jr 0x0FFFF2 // jump to 0x100002
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.org 0x20
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.rept 0x3E
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jr 0xFFFC0000 // jump to symmetric location in RAM
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nop
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nop
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nop
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nop
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nop
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nop
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.endr
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// EOF v850flash.S
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