R. Gaonkar Microprocessor Architecture Programming And Applications With The 8085 Prentice Hall 2014 【macOS】
R. Gaonkar Microprocessor Architecture Programming And Applications With The 8085 Prentice Hall 2014 【macOS】
(6th Edition, 2014) by Ramesh S. Gaonkar is a standard textbook for undergraduate courses in electrical and computer engineering. First published in 1984, the text provides an integrated treatment of both the hardware and software aspects of the 8-bit Intel 8085 microprocessor. Key Features and Content
For decades, Gaonkar's text has been widely regarded as a gold standard for learning the 8085 microprocessor. It is praised for its clarity, depth, and logical flow. The Thriftbooks User Review says: "A very comprehensive, good introductory text. I highly recommend this book to any instructor teaching an introductory microprocessor course. The 8085 is an excellent processor to start students in microprocessor theory."
Includes practical examples such as automation, control systems, and interfacing with LCD modules. Three-Part Organization: Part I: Hardware and interfacing concepts.
An 8-bit register used to store data and perform arithmetic/logical operations.
The final section masterfully integrates the hardware and programming knowledge from the first two parts to build complete, functional systems. It starts by covering the 8085's (Chapter 12). Subsequent chapters provide practical guides to interfacing with real-world devices : data converters like ADCs and DACs (Chapter 13), the programmable I/O and timer device 8155 and the 8279 keyboard/display interface (Chapter 14), and general-purpose peripherals like the 8255 (Chapter 15). The book then explores Serial I/O and data communication (Chapter 16) and showcases a variety of microprocessor applications (Chapter 17). The final chapter (18) thoughtfully extends these concepts to more advanced processors, providing a bridge to future studies. (6th Edition, 2014) by Ramesh S
The 8085 features a specific configuration of registers that Gaonkar categorises by utility:
Set if a carry is generated by bit D3 and passed to D4 during BCD arithmetic.
: Bitwise AND, OR, XOR, and rotates (e.g., ANA , ORA , XRA , RLC ).
In an era dominated by 64-bit multi-core processors and advanced ARM architectures, it is reasonable to ask why the Intel 8085—an 8-bit processor introduced in the late 1970s—remains a staple of engineering curricula worldwide. Key Features and Content For decades, Gaonkar's text
Conditional and unconditional jumps, calls, and returns (e.g., JMP , JC , NZ , CALL , RET ).
"Microprocessor Architecture, Programming, and Applications with the 8085" by R. Gaonkar is a valuable resource for anyone interested in learning about the 8085 microprocessor and its applications. The book's clear explanations, examples, and programs make it an ideal choice for students and professionals who want to gain hands-on experience with microprocessors. Although the 8085 microprocessor may not be as widely used today, the concepts and principles learned from this book can be applied to other microprocessors and embedded systems.
Perhaps the most practical section of the text is Part III: Interfacing. This is where the rubber meets the road. Gaonkar explains how to connect the CPU to the outside world.
: The 16-bit registers responsible for tracking code execution sequence and managing memory subroutines. 2. The Flags Register I highly recommend this book to any instructor
The text provides an excellent breakdown of the 8085’s interrupt structure. It explains the differences between hardware interrupts (TRAP, RST 7.5, RST 6.5, RST 5.5, INTR) and software interrupts (RST 0–7), teaching readers how to write Interrupt Service Routines (ISRs) for real-time applications. 5. Why the Text Remains Relevant Today
Whether you are an engineering student or a hobbyist, this book bridges the gap between abstract code and physical hardware. Here is why this specific text continues to be the gold standard for learning embedded systems. The Anatomy of the 8085
Used for parallel data transfer to keyboards and LEDs.
Detailed, step-by-step programming problems.
: Modern processors are too complex for beginners. The 8085 isolates fundamental concepts like registers, buses, and timing cycles without the clutter of modern architectural optimizations (like pipelining or branch prediction).
