CompuServe Thread

Blitter Question

5 messages in this thread
#35461From: donnellanJun 20, 1993 8:58 PM
The amiga mouse/game ports support light pens, paddles, joysticks, mice, and anything you want to connect (even some samplers). The amiga is after all not a PC :-). Sean. p.s. the game port can even be used to output signals such as the sync signal for a light pen.
#35482From: Troy BarlowJun 21, 1993 5:49 PM
Sean, I know it's supported at a hardware level, but I wanted to know if the software now supports it. According to the RKM, proportional devices are NOT supported by the system software (i.e. gameport.device, input.device). I wanted to know if this changed in 3.0. -Troy
#35483From: donnellanJun 21, 1993 7:20 PM
Ahhhhhhh! Now I see what you mean. I don't know if the system software uses the light pen or paddles… I've never looked.
#35504From: Troy BarlowJun 22, 1993 6:19 PM
I found out how to do it, and what I was doing wrong! When you write to potgo, you must doit it at top of frame (WaitTOF()), then read it at the bottom of the screen. If you don't read it twice, it will wrap around during the next vertical retrace. Well, I guess thats the right way 😉 It's working for me so far… -Troy
#35521From: donnellanJun 23, 1993 6:06 PM
well have fun doing that… just make sure to wipe the ink off the screen afterwards! 🙂 Sean.