At one point, years ago, I acquired a set of the tools for doing WCS microprogramming. I may still have them somewhere in my collection, but I have not seen them for awhile. What I do still have is a copy of the WCS user's guide, with explanations of the microprogramming instructions and how to use the micro assembler/loader/debugger. I attempted to make a copy for another member of this list, but the copier damaged several pages (not badly, but I am gun-shy about trying it again, at least with auto-feed). Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | email: gentry at zk3.dec.com (work) | | Unix Support Engineering Group | mbg at world.std.com (home) | | Hewlett Packard | (s/ at /@/) | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 (DEC '77-'98) | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+