80C39 is a Cmos Version of 8048 the one that preceded 8031-8051. MCS48 is the set for that, MCS51 is the current set. Here is an example project for 80C39-8748-8749 microcontroller. This code was written by me, and it works. But the documentation is not complete or may have errors.
Process Controller code here 80C39 Code for MCS48 (editable spreadsheet online)
Example - using Google Docs & Spreadsheets you can write assembly code on a spreadsheet. In private collaboration with others anywhere in the world. And you can use the docs to make reports, manuals or catalogs for publishing in your blog for public view.
See a manual document i have on public view Sequential Timer Manual (editable document online).
