Difference between revisions of "Instructions"
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Revision as of 15:08, 10 June 2018
Overview
https://www.youtube.com/watch?v=2h3hQCV3YcE&index=117&list=PLCiOXwirraUDUYF_qDYcZV8Hce8dsE_Ho
OpCode
The command for the instruction, ie Load, Store, Add
Operand
The data to be used by the OpCode, this can be data eg #21 (ie the number 21) or it can be an address eg 21 (ie memory location 21)
Immediate Addressing
The operand is data eg #21
Direct Addressing
The operand is a location eg 21
