Microprocessor
The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are

 all bits set (i.e. FFH)
 all bits reset (i.e. 00H)
 same as the content of A7-A0
 irrelevant

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
DS directive in 8085

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

ANSWER DOWNLOAD EXAMIANS APP

Microprocessor
The stack pointer register in a microprocessor

 holds the address of the top of the stack
 counts the number of programs being executing on the microprocessor
 keeps the address of the next instruction to be fetched
 counts the number of instructions being executing on the microprocessor

ANSWER DOWNLOAD EXAMIANS APP