Lucid Apogee Forum

Expression Evaluator

This example was created to test the new string functionality.

Supports */+-() operators with precedence.
Also supports decimals and negation.

1 REM RPN Expression Evaluator by Gemino Smothers
2 REM Written in Express BASIC
5 CLS: PRINT "Expression Evaluator": PRINT: PRINT ...

There has been two more major updates.
Read about them here
viewtopic.php?t=110
and here
viewtopic.php?t=111

Plans for the next update:
INKEY$
File i/o
more functions
etc...

I mistakenly forgot to upload the correct updated exe for DPMI Edition. Fixed now.
The one uploaded was a broken exe form testing.
If you downloaded DPMI Edition, please download it again.

I'm only going to mention just a bit of what has changed. These past weeks, many improvements and fixes were made.

New features include the commands COLOR and LOCATE. String operations have also been implemented.

String variables may be defined with a dollar sign. Comparison and concatenation ...

NBC Bay Area put out a news report called "Play me like Atari: Retro gaming and the push to preserve video game classics" a few days ago.

Atari got some good mainstream coverage. There was discussion about the preservation of classic technology. Also, some stuff about AI being used to cut game ...

We have been working hard for the past few weeks on this update and have made a lot of progress.

Here's a few things that have been added or fixed:

It is no longer required to have a blank line at the end of .bas source files.
Also, it seems that Linux actually doesn't seem to have a problem ...

With this next update, we have included more examples and have fixed the issues mentioned previously about not being able to have multiple FOR loops on the same line with the same index variable. Also, the issue with not being able to execute a for loop on the same line as an if statement. These ...

We're still working towards the next update.

I encountered another problem. A FOR loop combined after an IF statement doesn't work correctly.

This became apparent with the following example where line 40 and 50 should have been doable with one line.

1 REM https://rosettacode.org/wiki/Sieve_of ...

John Kemeny and Thomas Kurtz founded the BASIC programming language on May 1, 1964. The name BASIC is an acronym for Beginner's All-purpose Symbolic Instruction Code.

It has been adapted to work on virtually every computer system in existence. Many people learned to program with it. Due to all of ...

15 Puzzle

I made this game while testing the new Express Basic release.
It is now included with the download for each edition.
Slide the numbers to the correct order.


5 CLS: PRINT "15 Puzzle by Gemino Smothers": PRINT
10 LET size = 16: GOSUB 1000
20 FOR i = 0 TO size - 1: LET nl = nl + 1
30 ...