erikmb@cd.chalmers.se (Erik Bryntse) (03/07/91)
In article <1991Mar4.173547.9674@ugle.unit.no> Per Solberg writes: > >I just tried to turn off my 48SX, but accidentally hit the on-button twice >(rapidly), thus turning it on again. Trouble is, instead of resuming normal >operation it came up with the following screen : > > STO Error: > Object In Use > 4: > 3: { HOME } > 2: <3A07Fh> > 1: 0: CCYES > CCYES CC123 ALAR USER USER > >OK, I cleared the stack and got back my VAR menu by pressing HOME (pressing VAR >didn't work) and tried to turn it off again. No luck. The same thing happened >again, so all of a sudden I was unable to turn off my calculator. >I figured GATEWAY caused the trouble, so I removed (uninstalled) it. Now it was >possible to turn off the calculator, but when I tried to reinstall GATEWAY I >got an Undefined XLIB Name error. I turned the calculator off and then on >again; now the GATEWAY library had disappeared, but my port 0 contained an >object named CCYES which contains <3A07Fh>. > Hmm, this was interesting! What happened was that the execution of OFFC was interrupted when you pressed ON the second time. But obviously something else also happened. In Gateway the 0: CCYES object is used internally. In the beginning of the OFFC program it does 0: CCYES DUP PURGE STO. This way the STO operation will always work (or so I beleived). But I have noticed that sometimes (more specifically when you recover memory) the objects in the ports are duplicated. If this somehow happened when you pressed ON the second time, this would account for the behaviour the next time you ran OFFC. Since there were two 0: CCYES, PURGE only purged one of them. And STO will not work if the object already exists in the port. If this guess is correct, OFFC would have worked if you had tried it another time, since there would only be one 0: CCYES object this time. To figure out why you had problems installing GATEWAY again, I need to know exactly how you did when you tried to install it again. To install it again you need to have the library saved somewhere in user memory, since it is removed from port 0 when uninstalling. I hope this has cleared some of the questions! Erik Bryntse