How is the 8085 instruction set classified? (3marks) Define two-byte instruction with one example (5marks) Write instructions to load the hexadecimal number 65H in register c and 92H in the accumulator A. Display the number 65H at PORT 0 and 92H at PORT 1. (5marks) Define: Opcode (1mark) Operand (1mark) An assembler (2marks) Give the addressing modes of 8085 with examples (10marks) What is a memory? (3marks) Draw and explain the block diagram of 8085. (8marks) What is an interrupt? (2marks) What is the need of demultiplexing of address bus and data bus in 8085? (4marks) Name the register pair that can be used for 16 bits data. (2marks)
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