DOS Help

[Starthinker]

I have an old 286 that runs DOS 3.1. I had an old program that just cleared the screen (green monochrome) and made either a sine wave or randomized wave (looked like a heart monitor) with motion and everything. It wasn't a screen saver but was used as one, just cleared the screen and showed the wave with or without an X-Y axis showing.

I had this typed up as a basic program but the floppy was folded in storage (yes, a real floppy) so I typed one up from memory but it only works on my Tandy, it won't work on the 286-based machine. It's been 20 years since I've played with this so it's just a matter of I forgot how.

Any help/link/finished program would be great. Wracking my brain to get ancient hardware to do something just isn't as much fun as it used to be and I've been searching the web for about a week now for, well, anything that even referenced this but although I've come close, I haven't found it.

Thanks in advance! I figure this is a bunch that may know something.

 

[tsg]

Can you post the code?

 

[Crispy Duck]

Hi Starthinker,

If you've successfully programmed this for your Tandy but are struggling under DOS, I would assume that you just need help with the relevant graphics commands (set graphics mode, clear screen, move, draw, etc). Assuming that you're using QBasic, visit www.qbasic.com (or just Google for "qbasic") - there's plenty of info out there.

cbl.

Edit: further googling reveals that QBasic was only bundled with DOS from version 5 onwards, so you're probably using GW-BASIC. See Google and/or Wikipedia (http://en.wikipedia.org/wiki/GW-BASIC) for more.

 

[Starthinker]

Sorry, got roped into building a float for the 4th of July parade this weekend and dropped this for now as I was only doing it to see if I still could. I may have used qbasic before as I think I wrote the program on a Win95 machine and transferred it over, including the qbasic files. I'll have to tackle this some other time. We're a dying breed.