Hi!
I was looking for some information related to Assemblers Design and Construction and i only found some poor ebooks.
Somebody knows about some ebook or some tutorial for this topic ?
Thanks to all!

(sry for my bad english ^^)

probly the easiest way to write an assembler is to go into dos debug mode and just use each assembler statement and look at what bytes are output and what order they are output in. usually the first byte is the instruction and the following bytes are the arguments. (note: some statements like mov have multiple instructions depending upon the arguments)

i think he was asking about design of compiler, not assembling instructions themself.

IMO it's matter of taste, and if you would want to copy some existing, than i don't see the point to do it, YOU must think of your design and myabe you will create something new.

anyway, you can for example look at FASM design, look for "fasm internals"...

Might find this useful:
http://webster.cs.ucr.edu/AsmTools/RollYourOwn/index.html

This is not specifically asm-related, but it may help:

http://compilers.iecc.com/crenshaw/