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Thread: 32-bit Protected Mode Assembly Programming - Resource

  1. #1
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    Join Date
    Sep 2002

    32-bit Protected Mode Assembly Programming - Resource

    Here is something I came across this morning. For those who may want something other than (or already have) the Art of Assembly Language Programming I found the following:

    PC Assembly Language

    It's been out there for a while but I had never come across it....so I thought I'd share.

    A little background about the author and tutorial / book:

    I taught Computer Science at the University of Central Oklahoma for 10 years. During this time I taught an introductory course in PC Assembly Language programming. I grew frustrated at teaching 16-bit real mode programming and decided to change to 32-bit protected mode. However, I soon ran into a problem. I could not find a textbook that covered 32-bit protected mode assembly programming! So, I decided to write my own.

    I also did not want students to have to go out and buy expensive software for the course. I decided to base the course on the free NASM (Netwide Assembler) and the free GNU gcc compiler (however, any 32-bit C compiler would work). Another advantage of these choices was that students could use Windows, Linux or FreeBSD to develop on. (In fact, I use Linux for my main development platform.)

    Over one summer I wrote the bulk of this textbook and developed the examples using LaTeX. I made a feeble attempt to get the book published and then decided to publish it myself online for free. Why? To return something back to the developer community. I have used many open source products and wanted to make a modest contribution of my own.

    PC Assembly Tutorial
    The tutorial has extensive coverage of interfacing assembly and C code and so might be of interest to C programmers who want to learn about how C works under the hood. All the examples use the free NASM (Netwide) assembler. The tutorial only covers programming under 32-bit protected mode and requires a 32-bit protected mode compiler.

    I have example code files for: DJGPP, Borland, Microsoft, Open Watcom and Linux C compilers. The examples in the text of the tutorial are for DJGPP only, but how to interface with the other compilers is discussed as well. The example files also include macros that allow easy input/output and debugging (register dumps, memory dumps, coprocessor dumps and stack dumps). If you plan on running the examples in the tutorial, you must download the appropriate example code file. It contains support files used by the examples in the tutorial (such as asm_io.inc).

    Table of Contents

    Basic Assembly Language
    Bit Operations
    Floating Point
    Structures and C++

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  2. #2
    Senior Member
    Join Date
    Jul 2003
    Yea its really good, I looked at it years ago, and pretty much scan read it and it gave me a basic idea of ASM, it wasnt untill I did a microcontroller course that the knowledge learnt from scan reading it clicked it, its really very valuable.

    If you interested in reversing malicious binarys then id reacommend learning ASM and this is a perfect place to start.


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