Status Register | Embedded Systems Interview Questioin #shorts

What is a Status Register in Embedded Systems?
The Status Register is a special register inside the CPU that stores the result of the last operation using flags.
💡 It tells the processor what just happened!
👉 Common flags include: • Zero (Z) – Result is zero
• Carry (C) – Carry/borrow occurred
• Sign (S) – Result is negative
• Overflow (O) – Overflow happened
🎯 Why it matters? These flags help the microcontroller make decisions, perform conditional branching, and handle errors efficiently.
🚀 In simple terms: It acts like a “feedback system” for the CPU to decide what to do next!

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