OpCode hex codes

Hi everyone
(Thanks for your answers to the "test" question below btw)

Does anyone know of a resource that will allow me to take opcodes in
asm listings and get the hex codes
(such as "pop edp ---> 5d"). I've spent ages looking for a listing but
with very little success so far. Specifially,
I'm interested in the floating point division codes

TIA

Paul

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