Answer Posted / parul

zero flag:if result is 0 than it is set condition i.e.1
otherwise it is reset i.e.is 0.
carry flag:if an extra bit arises than it is set condition
i.e.1 otherwise it is reset i.e.is 0.
sign flag:in it only D7 is considered.if D7 is 1 than it
is set condition i.e.1 but if D7 is 0 than it is reset
i.e.is 0.
parity flag:if number of 1's in the answer is even than it
is set condition i.e.1 otherwise it is reset i.e.is 0.
auxilary carry flag:if a carry is generated in D3 & passed
to D4 than ac flag is set condition i.e.1 otherwise it is
reset i.e.is 0.

Which interrupt has the highest priority?

1079

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Explain memory mapped i/o and i/o mapped i/o schemes?

1269

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What is tri-state logic?

1139

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What is the function of ale and how does it works?

991

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Define the purpose of sim and rim in reference to the 8086?

904

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Define microcontroller?

988

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How can the signals of the 8086 be categorised?

976

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In how many groups can the signals of 8085 be classified?

1153

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Explain what is sim and rim instructions?

1116

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What is meant by flipflop?

1045

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Give example of bit address and byte address?

1036

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Give examples for maskable interrupts?

1059

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Intel 8051 follows which architecture?

1044

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explain the different types of control flags for the 8086?

914

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What are the widths of data bus (db) and address bus (ab) of 8085?

997

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