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Microprocessor

Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 247
 245
 244
 246

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Microprocessor
The timing difference between a slow memory and fast processor can be resolved if

Neither A nor B
Either A or B
External buffer is used
Processor is capable of waiting

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Microprocessor
During OPCODE fetch the state of S0 and S1 is

 01
 11
 00
 10

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

 1, 3 and 4
 2, 3 and 4
 1, 2 and 4
 1, 2 and 3

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Microprocessor
Length of the instruction POP D is

 4 byte
 2 byte
 3 byte
 1 byte

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 1000 H and 0FFF H
 0FFE H and 0FFF H
 0FFF H and 0FFE H
 1000 H and 1001 H

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