Answer Posted / bhumi

Various formats of specifying the operands are called
addressing modes.
1) Direct, (ex: IN/OUT Port#) (# - port number)
2) Immediate, (ex: MVI R,Data) (R-register)
3) Register, (ex: MOV Rd,Rs) (Rd- destination Register, Rs-
source Register)
4) Register indirect

Which is the tool used to connect the user and the computer?

1124

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What is the maximum internal clock frequency of 8086?

1050

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What are the types of interrupts in 8051?

1129

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What does the parity flag do?

1010

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Name the special purpose registers?

1002

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Where the data is transferred in a DMA write operation?

1105

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Mention the addressing modes of 8085?

1011

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Explain xthl, daa, rc instructions.

1098

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Explain briefly the string addressing mode with the help of an example?

956

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What is function of ale in 8085 microprocessor?

1007

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Does alu have any storage facility?

1116

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Give truth table for a half adder, give a gate level implementation of the same?

969

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If a1M1× DRAM requires 4 ms for a refresh and has 256 rows to be refreshed, no more than __________ of time must pass before another row is refreshed.

1258

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In the instruction FADD, What does F stands for

1191

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What are the different types of instructions responsible for data transfer instructions.

924

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