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use alternate formula for acos asm to avoid loss of precision
[oweals/musl.git]
/
src
/
math
/
i386
/
sqrt.s
1
.global sqrt
2
.type sqrt,@function
3
sqrt: fldl 4(%esp)
4
fsqrt
5
fstsw %ax
6
sub $12,%esp
7
fld %st(0)
8
fstpt (%esp)
9
mov (%esp),%ecx
10
and $0x7ff,%ecx
11
cmp $0x400,%ecx
12
jnz 1f
13
and $0x200,%eax
14
sub $0x100,%eax
15
sub %eax,(%esp)
16
fstp %st(0)
17
fldt (%esp)
18
1: add $12,%esp
19
fstpl 4(%esp)
20
fldl 4(%esp)
21
ret