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[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [libgloss/] [pa/] [setjmp.S] - Blame information for rev 158

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1 148 jeremybenn
/*
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 * Copyright (c) 1990,1994 The University of Utah and
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 * the Computer Systems Laboratory (CSL).  All rights reserved.
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 *
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 * Permission to use, copy, modify and distribute this software is hereby
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 * granted provided that (1) source code retains these copyright, permission,
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 * and disclaimer notices, and (2) redistributions including binaries
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 * reproduce the notices in supporting documentation, and (3) all advertising
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 * materials mentioning features or use of this software display the following
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 * acknowledgement: ``This product includes software developed by the
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 * Computer Systems Laboratory at the University of Utah.''
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 *
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 * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
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 * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
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 * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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 *
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 * CSL requests users of this software to return to csl-dist@cs.utah.edu any
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 * improvements that they make and grant CSL redistribution rights.
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 *
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 *      Utah $Hdr: _setjmp.s 1.9 94/12/16$
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 */
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        .space  $TEXT$
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        .subspa $CODE$
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/*
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 * The PA jmp_buf is 48 words arranged as follows:
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 *
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 *       0- 9:  sigcontext
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 *      10-26:  callee save GRs (r3-r18) and DP (r27)
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 *         27:  callee save SRs (sr3)
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 *      28-47:  callee save FRs (fr12-fr21)
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 */
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/*
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 * int
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 * setjmp(env)
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 *      jmp_buf env;
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 *
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 * This routine does not restore signal state.
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 */
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        .export setjmp,entry
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        .export _setjmp,entry
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        .proc
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        .callinfo
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setjmp
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_setjmp
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        .entry
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        /*
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         * save sp and rp in sigcontext, skip the rest
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         */
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        stw     %r30,8(%r26)
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        stw     %r2,24(%r26)
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        ldo     40(%r26),%r26
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        /*
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         * save dp and the callee saves registers
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         */
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        stwm    %r3,4(%r26)
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        stwm    %r4,4(%r26)
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        stwm    %r5,4(%r26)
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        stwm    %r6,4(%r26)
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        stwm    %r7,4(%r26)
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        stwm    %r8,4(%r26)
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        stwm    %r9,4(%r26)
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        stwm    %r10,4(%r26)
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        stwm    %r11,4(%r26)
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        stwm    %r12,4(%r26)
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        stwm    %r13,4(%r26)
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        stwm    %r14,4(%r26)
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        stwm    %r15,4(%r26)
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        stwm    %r16,4(%r26)
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        stwm    %r17,4(%r26)
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        stwm    %r18,4(%r26)
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        stwm    %r27,4(%r26)
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        mfsp    %sr3,%r9
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        stwm    %r9,4(%r26)
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        bv      0(%r2)
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        copy    %r0,%r28
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        .exit
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        .procend
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/*
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 * void
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 * longjmp(env, val)
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 *      jmp_buf env;
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 *      int val;
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 *
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 * This routine does not retore signal state.
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 * This routine does not override a zero val.
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 */
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        .export longjmp,entry
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        .export _longjmp,entry
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        .proc
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        .callinfo
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longjmp
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_longjmp
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        .entry
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        /*
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         * restore sp and rp
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         */
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        ldw     8(%r26),%r30
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        ldw     24(%r26),%r2
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        ldo     40(%r26),%r26
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        /*
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         * restore callee saves registers
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         */
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        ldwm    4(%r26),%r3
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        ldwm    4(%r26),%r4
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        ldwm    4(%r26),%r5
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        ldwm    4(%r26),%r6
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        ldwm    4(%r26),%r7
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        ldwm    4(%r26),%r8
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        ldwm    4(%r26),%r9
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        ldwm    4(%r26),%r10
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        ldwm    4(%r26),%r11
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        ldwm    4(%r26),%r12
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        ldwm    4(%r26),%r13
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        ldwm    4(%r26),%r14
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        ldwm    4(%r26),%r15
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        ldwm    4(%r26),%r16
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        ldwm    4(%r26),%r17
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        ldwm    4(%r26),%r18
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        ldwm    4(%r26),%r27
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        ldwm    4(%r26),%r9
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        mtsp    %r9,%sr3
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        bv      0(%r2)
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        copy    %r25,%r28
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        .exit
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        .procend

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