Addressing Modes Video Lecture | Computer Architecture & Organisation (CAO) - Computer Science Engineering (CSE)

FAQs on Addressing Modes Video Lecture - Computer Architecture & Organisation (CAO) - Computer Science Engineering (CSE)

1. What are the different types of addressing modes in computer architecture?
Ans. The different types of addressing modes include Immediate Addressing, Direct Addressing, Indirect Addressing, Register Addressing, and Indexed Addressing. Each mode defines how the operand is accessed during the instruction execution.
2. How does immediate addressing mode work?
Ans. In immediate addressing mode, the operand is specified explicitly in the instruction itself. This means that the value to be used is directly provided in the instruction, allowing for fast access since no memory lookup is needed.
3. What is the significance of indirect addressing mode?
Ans. Indirect addressing mode is significant because it allows for more flexible data access. Instead of specifying an operand directly, it provides a memory address that points to the actual operand location, enabling dynamic memory usage and access to data structures.
4. Can you explain the difference between direct and register addressing modes?
Ans. In direct addressing mode, the address of the operand is given directly in the instruction, while in register addressing mode, the operand is located in a register. Direct addressing typically accesses memory, whereas register addressing uses the CPU's internal registers for faster data access.
5. How do addressing modes affect program efficiency?
Ans. Addressing modes affect program efficiency by determining how quickly and effectively data can be accessed. For example, using register addressing is typically faster than memory addressing because registers are faster to access than memory. Efficient use of addressing modes can lead to better performance and optimized resource usage in programs.

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