Hi! I'm not trying to reinvent the wheel, so if somebody sees a post that answers this question, point me to it. But please read the question CAREFULLY... I'd like to learn assembly, on the lowest levels (ie operating system and a lot of int13 disk access sort of stuff). I've done just enough in good ol' debug to whet my appetite - i like the power and i'm not afraid of the work. BUT almost all the assemblers i've seen use a pile of pseudocode mixed in with the assembly. I don't want that. I'd much rather have something much more primitive, just a step or two up from dos debug. Debug is great (runs on dos alone, none of this windows stuff - os programming shouldn't be dependant on MS windows!) If there were even something that took just a variable for a mem address that i could change ONCE at the top and would automatically look to that for it's value, that'd be great - fixing a trillion references is no fun. Any suggestions for a good assembler? I like being able to see direct opcode translations... Jag PS, any thoughts on getting past 64K barrier or making your own protected mode?

I like to use NASM (netwide assembler) As far as P-Mode, check out www.osdever.net when it comes back up