The MC14500 does not support on its own jumps to addresses. In common implementations the jump command will simply reset the program counter and so restart the program and form a main loop. The JMP instruction does therefore not make use of the IO-address.

The RTN command is in most MC14500 not used (it could be used to implement subroutine calls).

More fancy designs might add extra hardware to support jumps to addresses and return features.

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