Back to the basics - Old DOS C++ and memory testing

Question posted by: sixthscroll (Newbie) on August 21st, 2008 03:07 PM

Hi everyone, it's been a very long time since I've programmed, so speak real slow.

I need to use good old DOS C++ (I'm using borland C++ 5.5 compiler with no IDE and therefore no syntax checking) on DOS 6.33 for a specialized GPS receiver. Unfortunately, there is no way for me to test several key functions of the unit. I want to test CPU stability and RAM.

If anyone has any code they already have made, I don't need to reinvent the wheel. If not, here are my questions:

1) How do I find out how much RAM I have?
2) How do I write an algorithm that will test every byte to see if the RAM is good?
3) What is a good CPU stability test? I was going to use an easy algorithm like Knight's Move or something, but does that really test the CPU?

Thanks for any help.

Long

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