Page 140 - DCAP210_INTRODUCTION__TO_MICROPROCESSORS

Introduction to Microprocessors

Notes 2000 The world’s very first Intel 1 gigahertz processor hits the shelves.

To this day Intel continues to make strides in the computing and micro computing world.
Questions:
1. Name the founder of Intel Company?

2. Give the year name when Intel launches first processor.

9.8 Summary

• Instruction is a binary pattern designed inside a microprocessor to perform a specific function.

• Data transfer operation copy data from a location called a source to another location called a
destination, without modifying the contents of the source.
• An arithmetic instruction performs arithmetic operation on given pattern.

• Logical instruction use to perform logical operations.
• Branching instruction alters the sequence of program execution either conditionally or
unconditionally.
• Machine control instructions control machine functions.

9.9 Keywords

ADD: Add data to Accumulator
ANA: Logical AND with Accumulator
LDA: Load Accumulator Directly from Memory

MOV: Move data between memory and registers
RAL: Rotate Left Through Carry
SBB: Subtract from Accumulator Using Borrow (Carry) Flag
SHLD: Store H & L Registers Directly in Memory
STA: Store Accumulator Directly in Memory

SUB: Subtract data from Accumulator
XCHG: Exchange H & L with D & E
XRI: Exclusive OR Using Immediate Data
XTHL: Exchange Top of Stack with H & L

1. Write an assembly program to add two numbers Program.

2. Write an assembly program to find greatest between two numbers Program.

9.10 Self-Assessment Questions

1. The data transfer instruction use to perform the logical operations on pattern.

(a) True (b) False

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