Another amazing gift from Geert, this is my first real DEC peripheral for the PDP 11/44!! Yay!
Running tests for the controller
I inserted the M8256 controller in an Unibone testbed (see here how to set that up):
I then started the cpu20_xxdp_rl0_dl11.sh script to get the Unibone to emulate a CPU and a DL11 serial port. This now boots xxdp. I then start ZRXFB0.BIC which should test the controller:
This test starts by calling the Supervisor. This prompt takes a set of possible answers explained here. After answering STA/FLAGS:HOE (start test, halt on error) the test reports the following:
Look in Jörg Hoppe’s fantastic diagnostics database here and find the test in question to get the assembly listing for the thing.
0 Comments