cvtsi2ss works for integers up to 2^63 - 1 but I need 2^64-1.
There seems to be vcvtusi2ss xmm1, xmm2, r/m64 but it always returns an Illegal instruction. If this is the function I am looking for, how do i have to properly use it?
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How do I convert an unsigned long into single precision floating-point in x86 Assembly?
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