25. Instruction Types
Instruction types in programming involve data transfer, arithmetic, logical, and control instructions. Understanding how these instructions operate, including their formats and variations, is crucial for efficient code execution. Examples demonstrate how to manipulate registers and memory locations, highlighting differences in instruction types for various operational needs.
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What we have learnt
- Instructions can be categorized into data transfer, arithmetic, logical, and control types.
- The execution of control instructions often depends on the state of flags set during operations.
- Different instruction formats (one-address, two-address, three-address, zero-address) provide various ways to specify operands for operations.
Key Concepts
- -- Data Transfer Instructions
- Operations that move data between registers and memory locations.
- -- Arithmetic Instructions
- Operations that perform mathematical calculations like addition, subtraction, multiplication, etc.
- -- Control Instructions
- Instructions that alter the flow of execution based on certain conditions.
- -- Flags
- Binary indicators set by the processor to reflect the outcome of arithmetic or logical operations.
- -- Instruction Formats
- The structure of instructions, which may vary (e.g., one-address, two-address) based on the number of operands.
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