MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -The four status bits are symbolized by C, S, Z, and V which stands for carry, sign, zero, and overflow, respectively.

Detailed explanation-2: -The status register is a hardware register that contains information about the state of the processor. Individual bits are implicitly or explicitly read and/or written by the machine code instructions executing on the processor.

Detailed explanation-3: -The first three bits (STATUS<0> to STATUS<2>) are the carry (C), digit carry (DC) and zero (Z) flags of the ALU respectively. The values of these bits change depending on the results of arithmetic or logical operations performed during program execution.

Detailed explanation-4: -Bits RP1 and RP0 (Register Page 1 and Register Page 0 respectively) serve as the upper 2 address bits for instructions which directly address the iRAM locations.