;
;  Copyright © 2016 Odzhan. All Rights Reserved.
;
;  Redistribution and use in source and binary forms, with or without
;  modification, are permitted provided that the following conditions are
;  met:
;
;  1. Redistributions of source code must retain the above copyright
;  notice, this list of conditions and the following disclaimer.
;
;  2. Redistributions in binary form must reproduce the above copyright
;  notice, this list of conditions and the following disclaimer in the
;  documentation and/or other materials provided with the distribution.
;
;  3. The name of the author may not be used to endorse or promote products
;  derived from this software without specific prior written permission.
;
;  THIS SOFTWARE IS PROVIDED BY AUTHORS "AS IS" AND ANY EXPRESS OR
;  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
;  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
;  DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
;  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
;  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
;  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
;  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
;  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
;  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
;  POSSIBILITY OF SUCH DAMAGE.
;    
    
    %ifndef BIN
      global is_linux64
      global _is_linux64
    %endif
    
    bits 32
 
; Linux only function
; returns TRUE if 64-bit else FALSE
is_linux64:
_is_linux64:
    mov    ax, cs
    cmp    ax, 0x23
    
    ret