Microprocessor
DS directive in 8085

Forces the assembler to reserve a specified number of consecutive bytes in the memory
Forces the assembler to reserve one byte of memory
None of these
Forces the assembler to reserve a specified number of bytes in the memory

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Microprocessor
Assertion(A): Segment override prefix (SOP) is used when a default offset register is not used with its default base segment register but with a different base register. Reason(R): The offset registers IP and SP can never be associated with any other segment registers apart from their respective default segments.

 Both A & R are true and R is the correct explanation of A.
 A is false but R is true.
 A is true but R is false.
 Both A & R are true but R is not the correct explanation of A.

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Microprocessor
PUSH B instruction in 8085 microprocessor causes

 the contents of register B & C to be copied in the stack
 the contents of register B only to be copied in the stack
 the contents of registers B & C to be transferred in the stack and and the registers get cleared
 registers B & C to be cleared

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