mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-28 21:49:33 +00:00
38 lines
714 B
ArmAsm
38 lines
714 B
ArmAsm
|
/*
|
||
|
|
* ====================================================
|
||
|
|
* Copyright (C) 1998, 2002 by Red Hat Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* Permission to use, copy, modify, and distribute this
|
||
|
|
* software is freely granted, provided that this notice
|
||
|
|
* is preserved.
|
||
|
|
* ====================================================
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if !defined(_SOFT_FLOAT)
|
||
|
|
|
||
|
|
/*
|
||
|
|
Fast version of atan2 using Intel float instructions.
|
||
|
|
|
||
|
|
double _f_atan2 (double y, double x);
|
||
|
|
|
||
|
|
Function computes arctan ( y / x ).
|
||
|
|
There is no error checking or setting of errno.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "i386mach.h"
|
||
|
|
|
||
|
|
.global SYM (_f_atan2)
|
||
|
|
SOTYPE_FUNCTION(_f_atan2)
|
||
|
|
|
||
|
|
SYM (_f_atan2):
|
||
|
|
pushl ebp
|
||
|
|
movl esp,ebp
|
||
|
|
fldl 8(ebp)
|
||
|
|
fldl 16(ebp)
|
||
|
|
fpatan
|
||
|
|
|
||
|
|
leave
|
||
|
|
ret
|
||
|
|
|
||
|
|
#endif
|