In the early 90's, i learned assembly on DOS using the A86 assembler and the book Using Assembly Language by Allen Wyatt. It was enlightening to use the D86 debugger to step through other code, including the code in the BIOS ROM. The IDA disassembler came in handy later on.
A86 & D86: http://www.eji.com/a86/ IDA: http://www.dcee.net/Files/Programm/Utils/ I agree that NASM would be a great choice to learn with, and i think DEBUG.COM is adequate for stepping through simple code. Below are links to additional free reference material for ASM on DOS. https://web.archive.org/web/20180127094538/http:/kipirvine.com/asm/debug/Debug_Tutorial.pdf https://www.plantation-productions.com/Webster/www.artofasm.com/DOS/index.html https://pacman128.github.io/pcasm/ https://www.seabios.org/Developer_links http://bespin.org/~qz/pc-gpe/ Best regards, -Ben _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
