Hi, Following the interesting discussion about pseudo asm. Some time ago I have written a simple MPASM preprocessor which I call MPP. The MPP's syntax resemble a mixture of Z80 and i86 mnemonics (which I am familiar with). The preprocessor output is in MPASM format. You are invited to try it.. The code can be downloaded from my web page: http://www.bg.univ.gda.pl/~janusz Enjoy..