Intel CPUs instruction set architecture Evolution
Before you examine the technical details of the core x86-32 platform, a brief history lesson might be helpful in understanding…
Category: history
Few words about Dual BIOS
Some motherboard vendors implement DualBIOS technology to increase reliability. Malfunctioning of the motherboard can be caused by a failed BIOS…
DOS Memory Layout
As already mentioned earlier, the DOS operating system was designed for a computer with an Intel-8088 or Intel-8086 microprocessor. And…
The First IBM PC’s Memory Organization
One of the most useful things we can learn about the inner workings of our Pes is how the memory…
IBM PC Memory Architecture
Memory Overview We already know, from earlier parts of this book, most of the underly ing ideas about our PC…
3 Laws of Modular Design for Assembler program
These laws are summarized below. They aren’t really laws, they’re suggestions. But we’ll u e them throughout thi book. Define…
Translating Programs
To make any program, no matter what programming language it was written in, come alive, it has to be translated…
History and Concepts of the DOS
The real history of our DOS begins with the early planning for the IBM Personal Computer and the operating system…
How the BIOS ROM works
Although the complete details of how the ROM-BIOS works are really only of concern to accomplished assembly language technicians, the…
The ideas behind the BIOS
The ROM-BIOS has a clumsy name that only hints at what it’s all about: ROM-BIOS is short for Read-Only Memory…