The register in the 8085A that is used to keep track of the memory address of the next op-code to be run in the program is the-
Program counter
In the context of the 8085A, the equivalent register that performs this function is the Program Counter. Based on the functions of these registers, the register that keeps track of the memory address of the next op-code to be run in the program in the 8085A microprocessor is the Program Counter.
Important Questions from Program Interrupt
Match List-I with List-II
List I
List II
a.
Micro operation
i.
Specify micro operations
b.
Micro programmed control unit
ii.
Improve CPU utilization
c.
Interrupts
iii.
Control Memory
d.
Micro instruction
iv.
Elementary operation performed on data stored in registers
Choose the correct option from those given below:
Disabling an interrupt is known as ______.
Which is not true about an interrupt
- The type $4$ interrupt represent
Arrange the following events in correct order when an interrupt occurs during instruction execution.
A. Save program counter (PC) and status register.
B. Fetch interrupt vector from memory.
C. Execute the interrupted instruction completely.
D. Transfer control to interrupt service routine (ISR)
E. Restore PC and register after ISR
Choose the correct answer from the options given below :
