Microprocessor
Which of the following statements for intel 8085 is correct?

 Program Counter (PC) specifies the address of the instruction last executed
 PC specifies the number of instructions executed so far
 PC specifies the address of the instruction to be executed
 PC specifies the address of the instruction being executed

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Microprocessor
When referring to instruction words, a mnemonic is

 a short abbreviation for the operand address.
 a short abbreviation for the data word stored at the operand address.
 shorthand for machine language.
 a short abbreviation for the operation to be performed.

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Microprocessor
PUSH B instruction in 8085 microprocessor causes

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

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