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77 lines
2.5 KiB
NASM
77 lines
2.5 KiB
NASM
; Copyright 2005-2014 Intel Corporation. All Rights Reserved.
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;
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; This file is part of Threading Building Blocks. Threading Building Blocks is free software;
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; you can redistribute it and/or modify it under the terms of the GNU General Public License
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; version 2 as published by the Free Software Foundation. Threading Building Blocks is
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; distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
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; implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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; See the GNU General Public License for more details. You should have received a copy of
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; the GNU General Public License along with Threading Building Blocks; if not, write to the
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; Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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;
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; As a special exception, you may use this file as part of a free software library without
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; restriction. Specifically, if other files instantiate templates or use macros or inline
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; functions from this file, or you compile this file and link it with other files to produce
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; an executable, this file does not by itself cause the resulting executable to be covered
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; by the GNU General Public License. This exception does not however invalidate any other
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; reasons why the executable file might be covered by the GNU General Public License.
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.code
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ALIGN 8
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PUBLIC __TBB_machine_try_lock_elided
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__TBB_machine_try_lock_elided:
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xor rax, rax
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mov al, 1
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BYTE 0F2H
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xchg al, byte ptr [rcx]
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xor al, 1
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ret
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.code
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ALIGN 8
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PUBLIC __TBB_machine_unlock_elided
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__TBB_machine_unlock_elided:
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BYTE 0F3H
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mov byte ptr [rcx], 0
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ret
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.code
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ALIGN 8
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PUBLIC __TBB_machine_begin_transaction
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__TBB_machine_begin_transaction:
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mov eax, -1
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BYTE 0C7H
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BYTE 0F8H
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BYTE 000H
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BYTE 000H
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BYTE 000H
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BYTE 000H
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ret
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.code
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ALIGN 8
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PUBLIC __TBB_machine_end_transaction
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__TBB_machine_end_transaction:
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BYTE 00FH
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BYTE 001H
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BYTE 0D5H
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ret
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.code
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ALIGN 8
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PUBLIC __TBB_machine_transaction_conflict_abort
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__TBB_machine_transaction_conflict_abort:
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BYTE 0C6H
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BYTE 0F8H
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BYTE 0FFH ; 12.4.5 Abort argument: lock not free when tested
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ret
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.code
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ALIGN 8
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PUBLIC __TBB_machine_is_in_transaction
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__TBB_machine_is_in_transaction:
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xor eax, eax
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BYTE 00FH ; _xtest sets or clears ZF
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BYTE 001H
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BYTE 0D6H
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jz rset
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mov al,1
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rset:
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ret
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end
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