Separated math and memory functions into their own files to limit the amount of objec...
[reactos.git] / reactos / lib / rtl / i386 / cos_asm.s
1 /*
2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS kernel
4 * PURPOSE: Run-Time Library
5 * FILE: lib/rtl/i386/cos.S
6 * PROGRAMER: Alex Ionescu (alex@relsoft.net)
7 * Eric Kohl (ekohl@rz-online.de)
8 *
9 * Copyright (C) 2002 Michael Ringgaard.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 *
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the project nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES// LOSS OF USE, DATA, OR PROFITS// OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 .globl _cos
39
40 /* DATA ********************************************************************/
41
42 fzero:
43 .long 0 // Floating point zero
44 .long 0 // Floating point zero
45
46 __fltused:
47 .long 0x9875
48
49 .intel_syntax noprefix
50
51 /* FUNCTIONS ***************************************************************/
52
53 _cos:
54 push ebp
55 mov ebp,esp // Point to the stack frame
56 fld qword ptr [ebp+8] // Load real from stack
57 fcos // Take the cosine
58 pop ebp
59 ret