Difference between revisions of "XXDP diagnostic package"
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** [https://github.com/rust11/xxdp/tree/main Github tree] | ** [https://github.com/rust11/xxdp/tree/main Github tree] | ||
* [http://retrocmp.com/how-tos/using-pdp-11-diagnostics/227-pdp-11-diagnostics-running-them PDP-11 diagnostics] | * [http://retrocmp.com/how-tos/using-pdp-11-diagnostics/227-pdp-11-diagnostics-running-them PDP-11 diagnostics] | ||
| + | * [http://bitsavers.org/pdf/dec/pdp11/xxdp Bitsavers collection of XXDP manuals] | ||
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| + | [[Category: PDP-11 Diagnostic Software]] | ||
[[Category: PDP-11 Operating Systems]] | [[Category: PDP-11 Operating Systems]] | ||
| − | [[Category: | + | [[Category: PDP-11 Software]] |
Latest revision as of 08:56, 29 August 2024
XXDP refers both to instances of the collection of diagnostics produced by DEC for the PDP-11, and, more usually, the minimalist system later provided to load and run them. (The diagnostics themselves were actually developed under another OS, such as RSX-11; XXDP was only used to run them.)
PDP-11 diagnostics were originally distributed on paper tape; later, groups of them were amalgamated onto mass storage media such as RK05 and RL0x disk packs. These were given names such as "RKDP" ('RK Diagnostic Package'); typically, a particular system was delivered with an RKDP pack (say) which contained all the diagnostics appropriate to that particular machine. A simple monitor was created to allow the machine to be booted directly from that pack, and also to make it easy to run them; 'XXDP' was the obvious generalization which was not specific to any particular media.
An XXDP pack would contain diagnostics for all the PDP-11 peripherals and options; this could easily be mass produced, as PDP-11 production increased. The XXDP file system is that of DOS-11.
