a) TEST.

b) RQ/GT0.

c) RQ/GT1.

d) QS0 and QS1.

e) S0,S1,S2.

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1.TEST:-

• It is an active low input line dedicated for 8087 co-processor.
• In Maximum Mode whenever the co-processor is busy it makes this pin high.
• TEST input is examined by the WAIT instruction.
• If this pin is high, the microprocessor enters idle state; till TEST pin becomes low i.e.8087 …