> On Mar 24, 2018, at 11:34 PM, Josh Dersch via cctalk <cctalk@classiccmp.org>
> wrote:
>
> ...
> There's also what looks like some very early RSTS source in there.
The BASIC-PLUS interpreter part, yes. RTS.P11, there are two versions. I'll
look at them more closely. I have a 1971 listing of "BTSS" which is clearly an
early, possibl pre-release, version of RSTS. Just the kernel; the other parts
were stripped out by the University of Illinois team who were experimenting
with that code. (How they got it is unclear.) It has been scanned but not
OCRed yet.
That plus the RTS code might be close to a full RSTS V0.1...
The 118600 tape has floating point emulation code in it, it appears to be the
3-word floating point that was reportedly used in RSTS through V3. In V4A, DEC
switched to the 2 word and 4 word formats that were used in the 11/45 floating
point processor.
paul
