dis: zydis guarantees visible/explicit operands to be first

[williballenthin]

referenced here but im not sure where else: https://github.com/zyantific/zydis/issues/189

[williballenthin]

since we only care about explicit operands in our analysis, we can stop enumerating once we hit a non-visible operand

[athre0z]

but im not sure where else

It's also stated in this documentation comment here. :-)

[williballenthin]

thank you!