dbk@fbog.UUCP (Dave B. Kinzer @ Price Rd. GEG) (11/07/88)
[] OK, that didn't take long - I have another question. In order to test the joystick hardware, I wrote a quick & dirty routine to start a vblank server from a program. The program would (I almost hate to admit this) busy wait for the vblank server to change some locations for it. The server would check to see if the program was waiting, and if so it would write out the pot1dat and joy1dat values to the waiting program. Regardless of whether the program was waiting, the server would then write a $0001 to the potgo register. This resulted in some pot values (not quite what I expected [but obviously paired XY values]) and joyport values (ok) being passed to the program. Unfortunately, the screen refreshed for every value passed back. What's going on here? It seems like my vblank server is being interrupted. Thanks again in advance. -- | // You've heard of CATS and DOGS, I'm from GOATS, Dave Kinzer | | // Gladly Offering All Their Support! noao!nud!fbog!dbk | | \X/ "My employer's machine, my opinion." (602) 897-3085 |