The document discusses the 8087 Numerical Data Processor (NDP). It introduces the 8087 NDP as a coprocessor used in parallel with the main processor for mathematical computations. It then describes some limitations of general processors in performing math calculations and how the 8087 addresses these limitations through its specialized instruction set. The document goes on to explain the 8087's data types, internal architecture, instruction formats, instruction types, and concludes that the 8087 is commonly used in business applications like calculating grocery bills.

1. Technical Seminar Report On “ 8087 NUMERCAL DATA PROCESSOR” submitted by Siba Prasad Mohanty EC200118338 under the guidance of Mr. M. Suresh

2. INTRODUCTION 8087 NDP (numerical data processor) is also known as math co-processor which is used in parallel with the main processor for number crunching applications, which would otherwise require complex programming. It is also faster than 8086/8088 processor in performing mathematical computation. It has its own specialized instruction sets to handle mathematical programs.

3. LIMITATIONS OF PRESENT PROCESSORS General processors need complex programming to do mathematical calculations. Use of high level language. A library of floating point object has to be obtained from the manufacturer.

4. 8087 NDP It is a processor which works in parallel with the main processor. It has its own set of specialized instructions. The number crunching part of the program is executed by 8087. Instruction for 8087 are written in the main program interspersed with the 8086 instructions. All the 8087 instruction codes have 11011 as the most significant bits of their first code byte.

5. 8087 DATA TYPES Binary Integers Packed Decimal Numbers Real Numbers Temporary Real Format

6. THE 8087 INTERNAL ARCHITECTURE

7. 8087 Control Word Formats

8. 8087 Status Word Formats

9. 8087 Stack Operations

10. Coding 8087 Instructions

11. 8087 Instruction Descriptions Data Transfer Instructions Real Transfers Integer Transfers Packed Decimal Transfers Arithmetic Instructions Addition Subtraction Reversed Subtraction Multiplication Division Reversed Division

12. Other Arithmetic Operations Compare Instructions Transcendental (Trigonometric and Exponential) Instructions Processor Control Instructions

13. CONCLUSION 8087 NDP is an actual processor and is used in parallel with the main processor. It is mostly used in business applications. The machine that we see in the grocery stores which gives us our bill uses 8087. Though many manufactures have their variety of numerical data processor, they have the same architecture.

14. Thank You