Instructions Flashcards
What is the name of a small amount of fast temporary memory with the processor?
Register
What is a mnemonic?
A mnemonic is a meaningful abbreviation that is used in assembly language. It is easier to remember and write down than a binary machine code instruction.
What is machine-readable language?
Machine-readable language is the only language that a compute can read and process.
How does a computer execute a machine code program?
A computer executes a machine code program by following eat fetch-decode-execute cycle. An instruction is fetched from memory, decoded in op-codes and operands, then executed by the processor.
what is the name of the machine code instructions that a processor can use?
Instruction set
Why is hexadecimal used instead of binary to write machine code instructions?
Hexadecimal numbers are easier to write than long patterns of 0s and 1s. Using hexadecimal can also lead to fewer mistakes.
What is the name given to the number of bits that a register in the CPU can hold at one time?
Word size
What is the purpose of translator software?
Translator software translates high-level code into machine-readable code. A translator can be a compiler or interpreter.
What is an operand in a machine code instruction?
An operand is data or an address that an operator will need to use in a machine code instruction.