📖 6. Programming of 8085

📖 From An Introduction To Microprocessor 8085 • 188 questions available

About 6. Programming of 8085

The Big Idea: Knowing the hardware is just half the battle; this chapter teaches you the "language" you use to talk to the 8085. Programming means writing a list of instructions (in a language called Assembly Language) that the 8085 understands. You'll learn all the instruction types, from data transfer (moving data around) to arithmetic (math), logical (decisions), and branching (loops and jumps). This is where you transform the microprocessor from a piece of silicon into a useful tool that can actually solve problems.

How It Works: You will use mnemonics like MOV A, B (move data from register B to register A), ADD C (add the value in C to A), and JNZ LOOP (jump to label "LOOP" if the zero flag is not set). You will learn about addressing modes (Immediate, Register, Direct, and Indirect) that tell the CPU where to find data. The chapter also teaches you how to write a complete assembly program, assemble it into machine code (hexadecimal), and use techniques like loops to repeat operations and subroutines to organize code, building effective programs to do specific tasks.

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🔄 Last updated: 2026-07-30