QuickBasic Cafe Forum

A 8086/DOS emulator project I am working on->


I am working on a 8086 emulator with limited DOS support.

Anyone interested can find the source and executables on my github:
https://github.com/PeterSwinkels/8086-Emulator

This Vogons(DOSBox) forum thread has some screen captures showing it in ...

Impressive. You might want to add some documentation to help people set it up though.

Okay, so you can sort of simulate optional parameters. However, I wouldn't recommend write a massive amount of code that will likely hamper performance as well unless absolutely necessary.

I found this old book from the 80's and in the appendix there are some QuickBasic programs that I want to try out.. the problem is that those were written on and for Apple Macintosh II and I now use Linux PC with DosBox.. The author of the book says that there are some differences in the graphics ...

The link is dead and you shouldn't hijack topics.

You could use vbdos which pretty much is qb 4.5 with windowing built in.

Occassionally, when I get around to it and feel like it I will still write something fun in an old BASIC dialact for DOS (GWBasic/QBasic/QuickBASIC/VBDOS/TurboBASIC).

None of them are really useful except perhaps as examples for those wanting/needing to learn a really old BASIC dialect but they ...

QBasic OUT Command & Modern PCs

The old QBasic OUT command worked under Windows 98 because programs could write directly to the parallel port. Starting with Windows XP, Microsoft removed direct hardware access for stability and security reasons. On top of that, most modern PCs no longer include ...

Are you trying to create a game in qb?

Your question is very broad, could you be more specific?

When it comes to file i/o in qb look up the following in the help:
OPEN statement
EOF function
LINE INPUT # statement

Those should get you started.

No, qb doesn't support optional arguments. What are you trying to do?

Perhaps you could try DOSBox or DOSBox-X?

You're welcome!

I tried this once and had the same issue. I found this in Quick Basic 4.5's help:


Note: To use COMMON with CHAIN when you are compiling outside the
BASIC environment, you must use the BRUN45.EXE module. This
module is used when you compile from the command line without
the /O option or when ...

Here's the vb.net implementation:

https://www.programmingalgorithms.com/a ... rt/vb-net/

If you like I can try converting it to QBasic.

Why? I should be able to go to 32000 shouldn't I? And in fact it seems to go wrong anywhere above 2000.


I believe you can't declare any array with the total number of bytes exceeding 64kb. It's not just the number of elements but the resulting size that matters. Since you didn't explicitly ...