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.

What type of architecture is used in 8085 microprocessor?

902

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Define crossbar switching with reference to 8086?

1012

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What is the purpose of the sign flag in 8085?

985

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What was is the primary usage of a 8085 microprocessor?

1060

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What is the purpose of segment register?

935

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Define bit?

1075

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In how many ways computer soft wares are categorized?

1035

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Explain maskable and non maskable interrupts?

1155

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Define psp and its structure?

1075

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explain the difference between 8086 and 8088?

1172

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What is the purpose of the biu in the 8086?

1047

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Which segment is used to store interrupt and subroutine return address registers?

1244

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Mention interrupts pins of 8085?

1154

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What is stack pointer in 8051 microcontroller?

1200

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What are the conditions under which the eu enter into the wait mode?

1193

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