Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
The chapter delves into the concept of instruction formats within computer architecture, emphasizing the role of opcodes and operand references while introducing various types of instructions such as arithmetic, logical, and memory operations. It explores the construction and execution of instructions in different address modes, including single, two, three, and zero address instructions, and illustrates the trade-offs between instruction complexity and execution efficiency. The chapter ultimately aims to provide a comprehensive understanding of how instructions are formulated and executed within CPU architecture.
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
References
ch10 part a.pdfClass Notes
Memorization
What we have learnt
Final Test
Revision Tests
Term: Opcode
Definition: The part of an instruction that specifies the operation to be performed.
Term: Operand
Definition: The data on which the operation is performed, which can be immediate values or memory addresses.
Term: Instruction Format
Definition: The layout of a binary instruction that defines how the opcode and operand(s) are arranged.
Term: Addressing Modes
Definition: The methods of specifying operand locations in instructions, including direct, indirect, immediate, and stack-based modes.
Term: Binary Representation
Definition: A numerical representation of data that uses the binary system, crucial for CPU operations.