|
Last change
on this file since 44940 was 44528, checked in by vboxsync, 12 years ago |
|
header (C) fixes
|
-
Property svn:eol-style
set to
native
-
Property svn:keywords
set to
Author Date Id Revision
|
|
File size:
1.5 KB
|
| Line | |
|---|
| 1 | ; $Id: cosl.asm 44528 2013-02-04 14:27:54Z vboxsync $
|
|---|
| 2 | ;; @file
|
|---|
| 3 | ; IPRT - No-CRT cosl - AMD64 & X86.
|
|---|
| 4 | ;
|
|---|
| 5 |
|
|---|
| 6 | ;
|
|---|
| 7 | ; Copyright (C) 2006-2010 Oracle Corporation
|
|---|
| 8 | ;
|
|---|
| 9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | ; available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | ; you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | ; General Public License (GPL) as published by the Free Software
|
|---|
| 13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | ;
|
|---|
| 17 | ; The contents of this file may alternatively be used under the terms
|
|---|
| 18 | ; of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | ; VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | ; CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | ;
|
|---|
| 23 | ; You may elect to license modified versions of this file under the
|
|---|
| 24 | ; terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | ;
|
|---|
| 26 |
|
|---|
| 27 | %include "iprt/asmdefs.mac"
|
|---|
| 28 |
|
|---|
| 29 | BEGINCODE
|
|---|
| 30 |
|
|---|
| 31 | ;;
|
|---|
| 32 | ; compute the cosine of ldr, measured in radians.
|
|---|
| 33 | ; @returns st(0)
|
|---|
| 34 | ; @param lrd [rbp + xS*2]
|
|---|
| 35 | BEGINPROC RT_NOCRT(cosl)
|
|---|
| 36 | push xBP
|
|---|
| 37 | mov xBP, xSP
|
|---|
| 38 | sub xSP, 10h
|
|---|
| 39 |
|
|---|
| 40 | fld tword [xBP + xS*2]
|
|---|
| 41 | fcos
|
|---|
| 42 | fnstsw ax
|
|---|
| 43 | test ah, 4
|
|---|
| 44 | jz .done
|
|---|
| 45 |
|
|---|
| 46 | fldpi
|
|---|
| 47 | fadd st0, st0
|
|---|
| 48 | fxch st1
|
|---|
| 49 | .again:
|
|---|
| 50 | fprem1
|
|---|
| 51 | fnstsw ax
|
|---|
| 52 | test ah, 4
|
|---|
| 53 | jnz .again
|
|---|
| 54 |
|
|---|
| 55 | fstp st0
|
|---|
| 56 | fcos
|
|---|
| 57 |
|
|---|
| 58 | .done:
|
|---|
| 59 | leave
|
|---|
| 60 | ret
|
|---|
| 61 | ENDPROC RT_NOCRT(cosl)
|
|---|
| 62 |
|
|---|
Note:
See
TracBrowser
for help on using the repository browser.
