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→Turn it on
In our February issue we told you about a software switch that could be used to turn off a disk drive without having to turn the system off. We said that the only way to turn the drive back on was to turn the computer off and start it up again. Wrong, again! A reader, Mike Egberts. reports that there's a software switch that can be used to turn the drive back on. too. We should have known. Using PEEK and LOAD statements users can probably do anything with their TIs.
Here's the switch: CALL LOAD (-31888,55). We are told that any valuethat is not 55 will turn the drive off.Previously we wrote that CALLLOAD (-31888,63,215) will turn thedrive off. Again, be warned: trying toaccess the drive after it has beenturned off will result in a system lockup.So, if you turn it off with a CALLLOAD statement, turn it back on witha CALL LOAD and you'll have no problem.Oh yes, to do these things youneed an Extended BASIC cartridgeand 32K expansion memory. ==Clear the screen== There ·s more than one way to clear ascreen on the TI home computer. (That can probably be said of anythingone does with the TI.) After you've gottentired of using the CALL CLEARcommand. try this in place of theCALL CLEAR in the program:
10 CALL HCHAR (1,1,32,768).
It will clear the screen by sweepingfrom top to bottom.
Then try this:
CALL VCHAR (l,1,32,768).
Of course, this clears the screen bysweeping from left to right. How m;rny many other ways can you cleara screen? ==More ways==
The inspiration for this item comes
from the NET 99er users group in
