The service to an interrupt will be delayed if it appears during the execution of
A. RETI instruction
B. instruction that writes to IE register
C. instruction that writes to IP register
D. all of the mentioned
Answer:A
The service to an interrupt will be delayed if it appears during the execution of
A. RETI instruction B. instruction that writes to IE register C. instruction that writes to IP register D. all of the mentioned
Explanation: The service to an interrupt will be delayed if it appears during the execution of RETI instruction or the instruction that writes to IE/IP registers.