Computer Instructions
Computer Hardware Configuration
Subroutines
• Subroutine calls are a special type of branch where we return to one instruction below the calling instruction.
– Provision must be made to save the return address, since it cannot be written into ROM.
Microinstruction Code Format (20 bits)
F1, F2, F3 : Microoperation Field
CD: Condition For Branching
BR: Branch Field
AD: Address Field
Читайте також: - Advantages of Computer Data Processing.
- Advantages of Computer Data Processing.
- Arithmetic Instructions
- Branch Instructions
- COMPUTERIZING A DATA BASE
- Conditional Branch Instructions
- Data Transfer Instructions
- Formats of instructions
- Instructions of data handling
- Symbolic Microinstructions
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