QuickBasic Cafe Forum

Linux has the potential to offer huge resources to a Linux version of QBASIC.  I can just imagine...

Also, linux has a dos emulator that probably could support QBASIC.

QBASIC RULES!!!! LINUX RULES!!!! MICROSOFT SUX!!!!!

(although for a website like this one to be dedicated to the Microsoft ...

DIM is not an executable statement, but CLS is.  QBASIC might not be expecting any DIM's after a CLS.

In a program, ALL declarations should come FIRST.  This is standard convention, and also some brain-dead interpreters require this.

Try moving the DIM to the first line. Think of it as ...

That's spelled copyRIGHT, not copyWRITE.

Copyright
   Lit.  The right to copy

See if you can perform the computation in stages.  Use some intermediate variables.  A few little chunks are more managable than one huge chunk.
For instance a+b* 123-SQR(72+4^a)*LOG(b)*(23^a ----1)
could be split up as follows:

temp1 = (72+4^a)
temp2 = (23^a ----1)
temp3 = SQR(temp1)*LOG ...

OTOH, DirectQB isnt compatible with 7.1.  Your call

I assume you're talking about using a sound card?

You should be aware of how any "sound library" will work:

Only one "sound stream/buffer" can be active at once.  "Multiple sounds" at once is actually a bunch of sounds being combined into one chunk, then sent out to the sound card as a sum of ...

I've got good news and bad news.

:) You can do it.  XP allows "DOS BOX" stuff
:( You'll have to download QBasic from this website, because XP doesn't come with it.

What you need to do is set it up so that QBasic or whatever you want to use is in a directory (preferably QB or something like ...

You can't go over 65535 due to the 16-bit nature of a near pointer.  You'd be better off if you downloaded the PC Gamer Encyclopedia thingamajig and studied VESA.  You can't go over 65535 even with assembler.  You should use VESA to set the 640x480x256 mode, and use the windowing ...

It will work in ALMOST any video mode.  It won't work in screen 7 or 12 because they have more than one bit plane.  You'll need to figure out how to change the bit plane register.  Find out which OUT port to access.  I used DEBUG to single step the VGA BIOS plotting a pixel, and ...

I'm designing a graphics program, and I want to be able to have 16-bit color and 32-bit color.  DirectQB only gives me the familiar screen 13, and future library aborts if given a bad mode.  I'm thinking of writing my own VESA routines in MASM (I happen to have the VESA specs)
Also ...

You might try interfacing with COM1 for local connections.

For online, you'll probably need to figure out how to access a network from QBasic.  You might need to write an assembly module that executes INT 21h or whatever to access the network driver.

You should probably study the workings of ...

Thank YOU for providing it.  It has given me insight on how to write a good game.  If I disagree would only recognize MMX, then I'd be in BUSINESS!

This library is COOL ;D;D;D;D;D

I'm trying to write a video game for QB7.1, but I can't use DirectQB (it doesn't LIB correctly >:().  I can use MASM to access the INT 10h, but I'm curious if there would be any problems.  Is it safe to execute video interrupts whenever I want, or do I have to inform QBasic about it ...