Fast way to access bits of Float64?

General Usage
4

with this macro I copied from here rewritten so it works in a loop/iteration 1:64

macro make_rawbit(idx)
    fn = Symbol(string("rawbit",idx))
    quote
        function $(esc(fn))(x::Float64)
            rawbit(x, $idx)
        end
    end
 end

or just written 64 times

@make_rawbit(i) where i=1:64
rawbits = (rawbit1, rawbit2, .., rawbit64)

rawbits[kthbit](targetfloat64)

rawbits[kthbit](targetfloat64) compiles as rawbitk(targetfloat64)