There is a INTEGER PROGRAMMING game at http://www.html5pcode.com/a1yinteger.htm The game uses a p-code. The p-code was written in HTML5 JavaScript.
The home page is http://www.html5pcode.com
You are to maximize the INCOME given the PRICES, REQUIREMENTS, and LIMITS. There are 8 ITEMS to make and 8 PARTS to make them with. There is a LIMIT to the number of PARTS available and a WANTED maximum quantity for each ITEM. You can click for the PROGRAM SOLUTION for each game. It uses the GRAY CODE binary numbers to test for the best solution. There are 100 different games.
This game is written in a p-code. The p-code is executed by a p-code engine. If you click on PROGRAM in the RED STRIPE at the top, you can view the p-code programs. The p-code engine can execute the programs and it can edit the programs.There is a DATA option that allows you to see the program's data as it is being executed. There is a TRAIL option that allows you to execute the program in small steps. There is an RT, Real Time, option that allows you to change the program as it is executing. There are many YouTube videos that will show you how it works.