__exclusive__ — R. Gaonkar Microprocessor Architecture Programming And Applications With The 8085 Prentice Hall 2014
Having established the hardware, the book transitions into software. This part begins at the very beginning, with Chapter 5 introducing the 8085's . Chapter 6 provides a comprehensive tour of the 8085 instruction set. The remaining chapters in this section teach essential programming techniques: Chapter 7 covers loops, logic operations, and more advanced instructions; Chapter 8 focuses on generating precise time delays; Chapter 9 explains the crucial concept of the stack and subroutines; and Chapter 10 explores code conversion, BCD arithmetic, and 16-bit operations. The section concludes with an introduction to the tools of the trade, including assemblers and simulators.
When introducing complex topics like timing diagrams, the text breaks down machine cycles (Opcode Fetch, Memory Read, Memory Write) state-by-state (
This section is crucial for students moving into Embedded Systems. It teaches that hardware is useless without the software driver to control it, and software is abstract without the hardware to run it.
Uses a "spiral approach" to revisit complex topics from multiple perspectives, making it accessible to students with no prior programming knowledge. Having established the hardware, the book transitions into
Gaonkar covers the architecture and programming of crucial companion ICs that expand the 8085’s capabilities:
Understanding the Accumulator, Flag register, and general-purpose registers (B, C, D, E, H, and L).
: The actual machine language bytes that map to memory addresses, illustrating how code physically sits in RAM/ROM. 🔌 Hardware Interfacing: Bridging Software and Silicon The remaining chapters in this section teach essential
A 5-bit flag register that indicates the status of the arithmetic/logic operations (Sign, Zero, Auxiliary Carry, Parity, Carry).
(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
: A 16-bit register pointing to the current memory location in the Stack area. It teaches that hardware is useless without the
The "Applications" portion of the title is where Gaonkar truly bridges the gap between theory and the real world. The 2014 edition places a heavy emphasis on how the 8085 interacts with peripheral devices.
The book provides clear schematics of the 40-pin Dual In-line Package (DIP). It explains the multiplexed address/data bus (
Explaining how the five flags (Sign, Zero, Auxiliary Carry, Parity, and Carry) reflect the status of the Accumulator after arithmetic or logical operations.
