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Microprocessor

Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 247
 246
 244
 245

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Microprocessor
Length of the instruction POP D is

 3 byte
 1 byte
 2 byte
 4 byte

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Microprocessor
Let the content of register C be 00000000 before the instruction DCR C is executed. The content of register C after the after the execution of this instruction will be

 11111111
 00000000
 00000001
 None

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Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

 01000000
 11000100
 010001000
 00000100

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Microprocessor
When any data transfer instruction, to transfer the data from memory to microprocessor, is executed the condition flags are

 always reset
 always set
 not affected
 affected indicating specific conditions

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Microprocessor
Using DeMorgan’s Theorem we can convert any AND-OR structure into

NOR-NAND
NAND-NAND
NAND-NOR
OR-NAND

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