6 Commits

Author	SHA1	Message	Date
Josh Dersch	3204e65499	Fixed UDA reset behavior, a few things were not getting re-initialized. Adjusted timings. 2.11bsd boots/runs without ... apparent issues on 11/84. Tested RT-11 on 11/84 and 11/05, mini-unix on 11/05.	2019-05-07 03:20:58 +02:00
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	2189e264c3	Initial stab at MSCP implementation. Strives to be MSCP compliant but is not an emulation ... of the UDA50 controller. Currently works acceptably with RT-11, does not currently boot. Many holes in implementation.	2019-04-16 02:30:40 +02:00
Josh Dersch	f0c33c6549	Adding makefile and menu changes for RK11/RK05 additions.	2019-04-05 21:09:26 +02:00
Joerg Hoppe	2530d9cbb5	Initial	2019-04-05 11:30:26 +02:00