On 2013-05-23, at 16:17, Greg King wrote: >> Unfortunately, I don't think any of these work; they all set >> the test-mode bit (bit 1) to 1 (on)? > > Does that matter? The original test bit (in $d016) crashed the system because it disabled the dynamic RAM refresh (therefore, it was removed). That was actually the question from my original post: what does the "test bit" aka "test mode" does to the machine? > But, the new test bit doesn't do that -- and, the change is momentary. What do you mean? If bit 2 can't hold the "cleared" state, then with ror $d030 the "set" state will be shifted to bit 1. Meaning: no matter what was the state of bit 1 before the action - after the test, this bit will be set, right? -- SD! Message was sent through the cbm-hackers mailing listReceived on 2013-05-23 16:01:09
Archive generated by hypermail 2.2.0.