Subversion Repositories openrisc_2011-10-31

/* setjmp/longjmp routines.

 *

 * Written by Michael Hayes .

 *

 * The author hereby grant permission to use, copy, modify, distribute,

 * and license this software and its documentation for any purpose, provided

 * that existing copyright notices are retained in all copies and that this

 * notice is included verbatim in any distributions. No written agreement,

 * license, or royalty fee is required for any of the authorized uses.

 * Modifications to this software may be copyrighted by their authors

 * and need not follow the licensing terms described here, provided that

 * the new terms are clearly indicated on the first page of each file where

 * they apply.

 */

        .sect .text

        .global setjmp

        .global longjmp

setjmp:

        pop     r1

        ldi     sp, ar0

#ifndef _REGPARM

        ldi     *ar0, ar2

#endif

        sti     r4, *ar2++

        sti     r5, *ar2++

        stf     r6, *ar2++

        stf     r7, *ar2++

#ifdef _TMS320C4x

        sti     r8, *ar2++

#endif

        sti     ar3, *ar2++

        sti     ar4, *ar2++

        sti     ar5, *ar2++

        sti     ar6, *ar2++

        sti     ar7, *ar2++

        bd      r1

        sti     r1, *ar2++

        sti     ar0, *ar2

        ldi     0, r0

longjmp:

#ifndef _REGPARM

        ldi     sp, ar0

        ldi     *-ar0(1), ar2

        ldi     *-ar0(2), r0

        ldiz    1, r0

#else

        ldi     r2, r0

        ldiz    1, r0

#endif

        ldi     *ar2++, r4

        ldi     *ar2++, r5

        ldf     *ar2++, r6

        ldf     *ar2++, r7

#ifdef _TMS320C4x

        ldi     *ar2++, r8

#endif

        ldi     *ar2++, ar3

        ldi     *ar2++, ar4

        ldi     *ar2++, ar5

        ldi     *ar2++, ar6

        ldi     *ar2++, ar7

        ldi     *ar2++, r1

        ldi     *ar2, sp

        b        r1

        .end