forked from KolibriOS/kolibrios
cde4fa851d
- Formatted by clang-format (WebKit-style). - Removed unnecessary errno linux. - Added KOS error codes. - String functions have been replaced with more optimal ones for x86. - Changed wrappers for 70 sysfunction. git-svn-id: svn://kolibrios.org@9765 a494cfbc-eb01-0410-851d-a64ba20cac60
38 lines
393 B
ArmAsm
38 lines
393 B
ArmAsm
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
|
|
|
|
.data
|
|
.align 2
|
|
nan:
|
|
.long 0xffffffff
|
|
.byte 0xff
|
|
.byte 0xff
|
|
.byte 0xff
|
|
.byte 0x7f
|
|
|
|
.text
|
|
|
|
.global atan2;
|
|
|
|
atan2:
|
|
fldl 4(%esp)
|
|
fldl 12(%esp)
|
|
ftst
|
|
fnstsw %ax
|
|
sahf
|
|
jne doit
|
|
fxch %st(1)
|
|
ftst
|
|
fnstsw %ax
|
|
sahf
|
|
je isanan
|
|
fxch %st(1)
|
|
doit:
|
|
fpatan
|
|
ret
|
|
isanan:
|
|
movl $1, __errno
|
|
fstp %st(0)
|
|
fstp %st(0)
|
|
fldl nan
|
|
ret
|