Files in directory media/os8/subsys from the latest check-in
The files in this directory are used during the PiDP-8/I software build
process along with the DEC original tape images in our parent
directory to build the
v3d.rk05 disk image
used by boot options IF=0 and IF=7.
These files are here rather than one level up because they are not part of OS/8 per se, but one way or another, they do currently require OS/8. Some of the data on these tapes could potentially be used with other PDP-8 operating systems, but at minimum, it would require translating the data from OS/8 tape format.
|DECtape Image File Name||Content Description|
||RFI-based music playback programs|
Controlling the Build Process
Most of these files are merged into the OS/8 binary disk image by
default, but can be excluded by giving a
--disable-os8-NAME flag to
configure script, where
NAME is the file name above without the
.tu56 extension. (e.g.
--disable-os8-k12 excludes Kermit-12.)
Only one of the files above is currently excluded by default, that being
music.tu56, because we have not yet received any report of reliable
playback. We believe this is because the PiDP-8/I realization does not
lend itself to creation of suitable AM frequency RFI. These programs
were written for real PDP-8 hardware which had much longer wires backed
by much stronger drivers than a PiDP-8/I, and which ran at lower
frequencies than a Raspberry Pi. These problems are not insurmountable,
so someone interested in the project may force inclusion of these files
on the OS/8 RK05 boot disk with
$ ./configure --enable-os8-music
Solving this problem may require hardware modifications. If so, we'll still exclude these programs by default since not all PiDP-8/I machines will have these modifications.
See the top-level
README.md file for further information about
--disable-os8-* configuration options.