Jimmer -> RE: EiA won't start: Engine claims insufficient memory (10/20/2008 4:37:46 PM)
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ORIGINAL: Marshall Ellis The neg memory numbers are returns from me looking at the free mem by directly interrogating the windows API??? Don't understand how neg results could happen. I could try to throw an ignore if neg statement in 1.05 that may allow it to run??? How frequently does it fail? Negative results can happen if a 32-bit application asks a 64-bit processor for an address range, using an API that has the same name. The application believes it is a 32-bit API, but the processor assumes it's a 64-bit one, and responds appropriately (for itself). But, the number is far larger than any number directly addressible in 32-bits (4 GB), so the leftmost binary digit (the 32rd digit, if you will) is set to 1. Thus, the whole number is taken as a negative number. My wife used to roll the high score table on tetris due to this bug, but it was only 16 bit numbers at that time (when she hit a score of 32768+1 or higher, her score would turn negative and start back "down" to zero. And, yes, she found out what happens when you get back to zero again, too: It starts counting up again, but now the high score table was totally messed up, even as far as having names were not spelled correctly. One of the original "buffer overflows".
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