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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [score/] [cpu/] [m68k/] [rtems.S] - Blame information for rev 173

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1 30 unneback
/*  rtems.s
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 *
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 *  This file contains the single entry point code for
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 *  the m68k implementation of RTEMS.
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 *
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 *  COPYRIGHT (c) 1989-1999.
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 *  On-Line Applications Research Corporation (OAR).
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 *
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 *  The license and distribution terms for this file may be
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 *  found in the file LICENSE in this distribution or at
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 *  http://www.OARcorp.com/rtems/license.html.
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 *
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 *  $Id: rtems.S,v 1.2 2001-09-27 11:59:28 chris Exp $
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 */
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#include 
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/*
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 *  There seems to be no reason to have two versions of this.
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 *  The following version should work across the entire family.
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 *  The worst assumption is that gcc will put entry in a scratch
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 *  register and not screw up the stack.
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 *
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 *  NOTE:  This is a 68020 version:
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 *
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 *    jmpl    @(%%d0:l:4)@(__Entry_points)
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 */
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        EXTERN (_Entry_points)
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        BEGIN_CODE
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        .align  4
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        .global SYM (RTEMS)
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SYM (RTEMS):
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        moveal    SYM (_Entry_points), a0
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        lsll      #2, d0
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        addal     d0, a0
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        moveal    (a0),a0
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        jmpl      (a0)
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        END_CODE
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END

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