Author: Stan Eisenstat
Subject: Re: [Cs323] ISA
Date: Monday, 16 Nov 2020, 20:02:13

    > Message Posted By: Unknown
    >
    > Just to clarify, for any given instruction, there is an ADDR which refers
    > to an operand and the other bits represent the actual operation being done?

Close.  For each explicit operand of an instruction,
there is subset of the bits in the instruction called
ADDR that specify the address of that operand.  How the
bits in ADDR are interpreted depends on the addressing
mode: immediate, direct, register, indirect, or indexed.

--Stan-