kolibrios/contrib/kolibri-libc/source/math/exp.s
Magomed Kostoev (mkostoevr) 1f4d74f500 Relocate kolibri-libc from GitHub
git-svn-id: svn://kolibrios.org@8622 a494cfbc-eb01-0410-851d-a64ba20cac60
2021-03-02 17:58:11 +00:00

32 lines
323 B
ArmAsm

#include "libc/asm.h"
.data
LCW1:
.word 0
LCW2:
.word 0
LC0:
.double 0d1.0e+00
.text
MK_C_SYM(exp)
fldl 4(%esp)
fldl2e
fmulp
fstcw LCW1
fstcw LCW2
fwait
andw $0xf3ff,LCW2
orw $0x0400,LCW2
fldcw LCW2
fldl %st(0)
frndint
fldcw LCW1
fxch %st(1)
fsub %st(1),%st
f2xm1
faddl LC0
fscale
fstp %st(1)
ret