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.text
.type exp2,@function
.global exp2
exp2: # note: exp2(x) = 2^x
fldl 4(%esp) # x
fld %st(0) # x x
frndint # int(x) x
fxch # x int(x)
fsub %st(1),%st(0) # frac(x) int(x)
f2xm1 # 2^(fract(x))-1 int(x)
fld1 # 1 2^(fract(x))-1 int(x)
faddp %st(0),%st(1) # 2^(fract(x)) int(x)
fscale # 2^x int(x)
fstp %st(1) # 2^x
ret
.ende:
.size exp2,.ende-exp2
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