National Semiconductor IMP-16P

[Moonferret]

Hi Folks!

I recently picked up this lovely machine and have been working on bringing it back up. I'm now at the point where it's running, has 8K words of working RAM and is loading programs via the TTY interface. Luckily the machine did come with a number of original paper tapes and a pile of documentation.



My plan is currently to expand the RAM. 8K is a little cramped with the editor & assembler loaded. Probably going to have to create my own PCBs to do this but I figured I'd check here first. Does anybody have any spare boards for this system? In particular RAM and the PROM programmer? Also looking for any additional software or documentation.

Cheers,
Dave

 

[Al Kossow]

Also looking for any additional software or documentation.

Cheers,
Dave

Index of /components/national/imp

saying what documentation you have would be helpful

 

[Moonferret]

Index of /components/national/imp

saying what documentation you have would be helpful

Still working through it at the moment. I have most of what's already been archived plus some extra bits. Don't currently have a working scanner but do plan to archive it all at some point.

Paper tapes have all been read and just need tidying up before uploading.

Cheers,
Dave

 

[Moonferret]

Paper tape images have been uploaded here...
Google Drive

Will upload documents as I get them scanned. Have most of what is already on Bitsavers but also have the following which stand out...

SM/PL Language User Manual
IMP-16 BASIC Source Code Listing (Appears to also be for the PACE)
42000035A IMP-16C Interfacing Guide
4200076X IMP-16 Conversational Assembler Manual (+ source listings)

And then there is this lot which consists of several folders of source listings (Think these have been uploaded but need to check versions) plus a whole random assortment of schematics, blueprints, magazine articles, etc.



Cheers,
Dave

 

[Knarfian]

I just acquired a COP400 Development system (I think) which is based on an IMP-16C 6-card chassis inside. I'll be dumping the ROM images and taking better pictures soon, if this helps at all. There is a RAM board.