Adressing Modes Flashcards
1
Q
What is opcode?
A
What the instruction actually does
2
Q
What is the operand?
A
The data for an instruction
3
Q
What is immediate addressing?
A
Where the operand is part of the instruction
e.g mov
4
Q
What is direct addressing?
A
Where the operand is a memory address
e.g ldr and str operations
5
Q
What is a ‘processor instruction set’?
A
An instruction set is a group of commands for a CPU in machine language.
