//

// Copyright (c) 2002, 2017, Oracle and/or its affiliates. All rights reserved.

// DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

//

// This code is free software; you can redistribute it and/or modify it

// under the terms of the GNU General Public License version 2 only, as

// published by the Free Software Foundation.

//

// This code is distributed in the hope that it will be useful, but WITHOUT

// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// version 2 for more details (a copy is included in the LICENSE file that

// accompanied this code).

//

// You should have received a copy of the GNU General Public License version

// 2 along with this work; if not, write to the Free Software Foundation,

// Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

//

// Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

// or visit www.oracle.com if you need additional information or have any

// questions.

//

//

  // Get the raw thread ID from %g7

       .inline  _raw_thread_id, 0

       .register %g7,#scratch

       .volatile

       mov     %g7, %o0

       .nonvolatile

       .end

  // Support for jlong Atomic::load and Atomic::store on v9.

  //

  // void _Atomic_move_long_v9(volatile jlong* src, volatile jlong* dst)

  //

  // Arguments:

  //      src:  O0

  //      dest: O1

  //

  // Overwrites O2

        .inline _Atomic_move_long_v9,2

        .volatile

        ldx     [%o0], %o2

        stx     %o2, [%o1]

        .nonvolatile

        .end

  // Support for void Prefetch::read(void *loc, intx interval)

  //

  // Prefetch for several reads.

        .inline _Prefetch_read, 2

        .volatile

        prefetch [%o0+%o1], 0

        .nonvolatile

        .end

  // Support for void Prefetch::write(void *loc, intx interval)

  //

  // Prefetch for several writes.

        .inline _Prefetch_write, 2

        .volatile

        prefetch [%o0+%o1], 2

        .nonvolatile

        .end

  // Support for void Copy::conjoint_jlongs_atomic(jlong* from, jlong* to, size_t count)

  //

  // 32-bit

  //

  // Arguments:

  //      from:  O0

  //      to:    O1

  //      count: O2 treated as signed

  //

  // Clobbers:

  //      long_value: O2, O3

  //      count:      O4

  //

  // if (from > to) {

  //   while (--count >= 0) {

  //     *to++ = *from++;

  //   }

  // } else {

  //   while (--count >= 0) {

  //     to[count] = from[count];

  //   }

  // }

        .inline _Copy_conjoint_jlongs_atomic, 3

        .volatile

        cmp     %o0, %o1

        bleu    4f

        sll     %o2, 3, %o4

        ba      2f

    1:

        subcc   %o4, 8, %o4

        std     %o2, [%o1]

        add     %o0, 8, %o0

        add     %o1, 8, %o1

    2:

        bge,a   1b

        ldd     [%o0], %o2

        ba      5f

        nop

    3:

        std     %o2, [%o1+%o4]

    4:

        subcc   %o4, 8, %o4

        bge,a   3b

        ldd     [%o0+%o4], %o2

    5:

        .nonvolatile

        .end