UniBone: Linux-to-DEC-UNIBUS-bridge, year #1
Jörg Hoppe
j_hoppe at t-online.de
Tue Nov 19 05:41:25 CST 2019
Daniel,
>>
>> Yes, can (get a kit with SMT work done)
>
> OK, that’s the answer I needed;
> If I want to put one of these in a KS10, can the parity lines be
hacked from the software
> (the KS10 uses them as two extra data bits) or are they hard-wired to
parity?
Several people asked to make UniBone PDP-10able, it should be not problem.
UNIBUS PA,PB are (like all other signals) just pins on a GPIO
multiplier, no interpretation is done in hardware.
On software side the PRU must sample 18bit instead of 16bit for DATA,
then lots of "uint16_t" must be changed to "uint32_t" in the whole
software stack.
Not clear what to do with existing device emulators: did DEC construct
18bit mutants for a few PDP-11 peripherals to run them in KS10?
UNIBUS on a PDP-10 makes only sense to me if the big pool of PDP-11
peripherals can be used directly.
regards,
Joerg
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