Write the names of 6 modes of 8253

  Question 1 5 Points AD0-AD7 lines are multiplexed and A8 to A15 are not multiplexed in 8085. State the reason.         Question 2 5 Points 1. Create code snippet to a) load 00H to accumulator b) Decrement the accumulator c) Display the answer at 3004H  

Analyse and Write function and number of bytes present in the following instructions:- i) MVI A,05H     ii) STA 3000H iii) DAD B   iv) XCHG v) MOV C,M