Read The Effective Address
Step 3 is deciding which operation it is. If this is a Memory operation - in this step the computer checks if it's a direct or indirect memory operation:
- Direct memory instruction - Nothing is being done.
- Indirect memory instruction - The effective address is being read from the memory.
If this is a I/O or Register instruction - the computer checks its kind and execute the instruction.
Read more about this topic: Instruction Cycle
Famous quotes containing the words read, effective and/or address:
“I confess, the motto of the Globe newspaper is so attractive to me, that I can seldom find much appetite to read what is below it in its columns, “The world is governed too much.””
—Ralph Waldo Emerson (1803–1882)
“I know no method to secure the repeal of bad or obnoxious laws so effective as their stringent execution.”
—Ulysses S. Grant (1822–1885)
“Death is hacking away at my address book and party lists.”
—Mason Cooley (b. 1927)