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mirror of https://github.com/livingcomputermuseum/UniBone.git synced 2026-04-19 09:09:56 +00:00
Commit Graph

4 Commits

Author SHA1 Message Date
Josh Dersch
be3b6d57ed Implemented AVAILABLE, ERASE, DETERMINE ACCESS PATHS commands. Tweaks to interrupt queueing (request_INTR now blocks until
the interrupt actually gets signaled on the unibus).  OpenVMS 7.3 now boots on the VAX.
2019-05-06 19:28:20 +02:00
Josh Dersch
8eff2a4e10 Rewrote lower-level DMA and IRQ handling: DMA and IRQ requests are now queued and will run to completion on their own
without help from the device code (just call request_DMA and when it returns the DMA transfer is complete.)  Fixed
request_DMA to chunk DMA transfers larger than 1024 bytes to avoid overrunning the mailbox's shared memory.  Fixed
concurrency issues with DMA requests -- a race condition could cause DMA request data to get clobbered.

RT-11 now boots, MSCP behavior is now very reliable.
2019-05-04 03:30:26 +02:00
Josh Dersch
e0aabf2197 Changes to MSCP implementation with tweaks to PRU1 code to allow operation on 11/84 under 2.11BSD.
2.11BSD boots and works well enough to recompile itself.
2019-04-24 20:29:33 +02:00
Joerg Hoppe
2530d9cbb5 Initial 2019-04-05 11:30:26 +02:00