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  • Committer: Package Import Robot
  • Author(s): Aurelien Jarno
  • Date: 2012-09-16 23:05:23 UTC
  • Revision ID: package-import@ubuntu.com-20120916230523-r2ynulqmp2tyu2e5
Tags: upstream-20120217+dfsg
Import upstream version 20120217+dfsg

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board-js2x/llfw/stage_s.S
 
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/******************************************************************************
 
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 * Copyright (c) 2004, 2008 IBM Corporation
 
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 * All rights reserved.
 
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 * This program and the accompanying materials
 
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 * are made available under the terms of the BSD License
 
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 * which accompanies this distribution, and is available at
 
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 * http://www.opensource.org/licenses/bsd-license.php
 
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 *
 
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 * Contributors:
 
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 *     IBM Corporation - initial implementation
 
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 *****************************************************************************/
 
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        .text
 
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        .org    0 /* after loading to mem this is at slaveloop_base */
 
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#       . = 0x3f00 loaded to this addr
 
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        .globl __stage_s_entry
 
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__stage_s_entry:
 
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        bl      $+4
 
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        mflr    r4
 
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        li      r3, 0xff
 
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        not     r3, r3
 
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        and     r4, r4, r3
 
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        li 0,1 ; std 0,0xf8(4)
 
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        li 0,0 ; std 0,0xa0(4)
 
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slaveloop:
 
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        ori 28,28,0x100
 
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        lis 0,10
 
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        mtctr 0
 
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        bdnz $          # do some waiting, to prevent flooding the buses
 
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        lwz 0,0xa0(4)
 
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        cmpw 0,28
 
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        bne $-20        # wait for our flag
 
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        lwz 0,0x80(4)
 
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        lwz 3,0xc0(4)
 
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        mtctr 0
 
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        bctr            # jump to specified address, with specified GPR3
 
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#       .quad   0       
 
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#       .quad   0       
 
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