Machine Code/LMC Flashcards
1
Q
What is the mnemonic meaning: ADD
A
Add
2
Q
What is the mnemonic meaning: SUB
A
Subtract
3
Q
What is the mnemonic meaning: STA
A
Store
4
Q
What is the mnemonic meaning: LDA
A
Load
5
Q
What is the mnemonic meaning: BRA
A
Branch always
6
Q
What is the mnemonic meaning: BRZ
A
Branch if zero
7
Q
What is the mnemonic meaning: BRP
A
Branch if positive
8
Q
What is the mnemonic meaning: INP
A
Input
9
Q
What is the mnemonic meaning: OUT
A
Output
10
Q
What is the mnemonic meaning: HLT
A
End program
11
Q
What is the mnemonic meaning: DAT
A
Data location
12
Q
Name the 3 branching instructions and mnemonic
A
BRA - Branch always
BRZ - Branch if zero
BRP - Branch if positive
13
Q
What are the 2 sections of a machine code instruction
A
Basic machine operation and the addressing mode alongside the operand/opcode.
