remainder.asm revision 677833bc953b6cb418c701facbdcf4aa18d6c44e
; $Id$
;; @file
; InnoTek Portable Runtime - No-CRT remainder - AMD64 & X86.
;
;
; Copyright (C) 2006 InnoTek Systemberatung GmbH
;
; This file is part of VirtualBox Open Source Edition (OSE), as
; available from http://www.virtualbox.org. This file is free software;
; you can redistribute it and/or modify it under the terms of the GNU
; General Public License as published by the Free Software Foundation,
; in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
; distribution. VirtualBox OSE is distributed in the hope that it will
; be useful, but WITHOUT ANY WARRANTY of any kind.
;
; If you received this file as part of a commercial VirtualBox
; distribution, then only the terms of your commercial VirtualBox
; license agreement apply instead of the previous paragraph.
;
%include "iprt/asmdefs.mac"
BEGINCODE
%ifdef __AMD64__
%define _SP rsp
%define _BP rbp
%else
%define _SP esp
%define _BP ebp
%endif
;;
; See SUS.
; @returns st(0)
; @param rd1 [ebp + 8h] xmm0
; @param rd2 [ebp + 10h] xmm1
BEGINPROC RT_NOCRT(remainder)
push _BP
mov _BP, _SP
sub _SP, 20h
;int3
%ifdef __AMD64__
movsd [rsp + 10h], xmm1
movsd [rsp], xmm0
fld qword [rsp + 10h]
fld qword [rsp]
%else
fld qword [ebp + 10h]
fld qword [ebp + 8h]
%endif
fprem1
fstsw ax
test ah, 04h
jnz .done
fstp st1
.done:
%ifdef __AMD64__
fstp qword [rsp]
movsd xmm0, [rsp]
%endif
leave
ret
ENDPROC RT_NOCRT(remainder)