Assembly Language

Question 1

What are the two instruction sets for the processor:

Answer 1

RISC (reduced instruction set) or CISC (complex instruction set). An instruction set is a pattern of binary values that a particular processor recognises as commands

Question 2

Describe a typical line of assembly code:

Answer 2

Op-code - the mnemonic instruction
Operand - the registers/data that is being used
Addressing mode - immediate (directly using specific data - #num) or direct (specifies a register with the right data in - num)

Question 3

What are the four types of operation codes:

Answer 3

Data transfer (LDR, STR, MOV), arithmetic (four basic, increment, decrement, compare, reverse sign, shift), logical operations (logic gates), and branch operations (BEQ, BNE, BLT, BGT)