Which of the input line(s) indicate that the CPU is performing an escape operation, and enables 80287 to execute the next instruction?
A. NPWR (active low) and NPRD (active low)
B. NPS1 and NPS2 (active low)
C. NPS1 (active low) and NPS2
D. CMD0 and CMD1
Answer:A
Which of the input line(s) indicate that the CPU is performing an escape operation, and enables 80287 to execute the next instruction?
A. NPWR (active low) and NPRD (active low) B. NPS1 and NPS2 (active low) C. NPS1 (active low) and NPS2 D. CMD0 and CMD1
Explanation: The Numeric Processor select input lines, NPS1 (active low) and NPS2, indicate that the CPU is performing an escape operation, and enables 80287 to execute the next instruction.