DECtape archeology.

[Pontus Pihlgren]

On Fri, Jan 12, 2018 at 11:22:53AM +0100, Mattis Lind via cctalk wrote:
> DIR    .BIN   003   17-NOV-71
> 
> DTCOPY .BIN   006   17-NOV-71
> 
> D0AA   .BIN   014   17-NOV-71
> 
> 
> What is DDP1-V001? Some early diagnostics monitor? The filesystem seems to
> be DOS-11 as RT-11 FILEX is able to read the directory with /S


As you probably already have thought, XXDP is the moniker for a group of
diagnostic packages on various media. TCDP for DECtape media, RKDP for
RK disk and so on. Don't know what the D in DDP1 would be..

D0AA seems to be a test suite for basic instruction tests on PDP-11:

https://s3-us-west-2.amazonaws.com/archive.pcjs.org/pubs/dec/pdp11/diags/MAINDEC-11-DZQAB-B-D_User_Reference_Manual_Oct73.pdf

But you most likely already know this :)

/P