When you generate your assembler, be sure to adhere to standard syntax, so it won't confuse others when you ask about why your code misbehaves.

There are, BTW, plenty of freware assemblers available that use standard syntax and do everything you should need, while operating under DOS, or under Windows NT4/95/98/ME/XP,2K ... I can't quite see how an assembler can reduce the number of lines of code you have to write in order to perform a given set of instructions. There should be one line per opcode, and plenty of room for comment on each line. If you want to write one yourself, then have at it, but I'd say you're a glutton for punishment. If I were in your place, I'd start with a monitor like UltraMon51, which has an assembler and disassembler built in and runs on your 805x. It only uses 8KB of ROM space, hence will let you use the remaining space in your 32KB EEPROM. It even attempts to autobaud so you don't necessarily have to have a "standard" crystal. You do, however, have to have something that works.

RE