Just for the record, Tek4404 never had gcc on it. The .r file format is proprietary to TSC (makers of Uniflex). I tracked down the grad student (at the time)

Just for the record, Tek4404 never had gcc on it. The .r file format is proprietary to TSC (makers of Uniflex). I tracked down the grad student (at the time) Clem Cole that did the porting of K&R C for Tek4404 and there was a lot of time pressure to get it done.