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[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [libgloss/] [m68k/] [cf-hosted.S] - Blame information for rev 816

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Line No. Rev Author Line
1 148 jeremybenn
/*
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 * cf-hosted.S --
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 *
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 * Copyright (c) 2006 CodeSourcery Inc
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 *
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 * The authors hereby grant permission to use, copy, modify, distribute,
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 * and license this software and its documentation for any purpose, provided
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 * that existing copyright notices are retained in all copies and that this
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 * notice is included verbatim in any distributions. No written agreement,
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 * license, or royalty fee is required for any of the authorized uses.
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 * Modifications to this software may be copyrighted by their authors
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 * and need not follow the licensing terms described here, provided that
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 * the new terms are clearly indicated on the first page of each file where
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 * they apply.
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 */
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/* Semihosting function.  The debugger intercepts the halt, and
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   determines that it is followed by the sentinel pattern. */
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        .globl __hosted
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__hosted:
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        linkw %fp,#0
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        movel %fp@(8),%d0
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        movel %fp@(12),%d1
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        /* The semihosting sequence is 'nop; halt;sentinel' aligned to
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           a 4 byte boundary.  The sentinel is an ill formed instruction
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           (movec %sp,0).  The debugger will adjust the pc, so it is never
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            executed.  */
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        .balignw 4,0x4e71
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        nop
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        halt
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        .long 0x4e7bf000
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        unlk %fp
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        rts

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