I have been successfully running a particular application on a 486-based PC. However, this same appl
If the problem doesn't stem from configuration issues or conflicts in the base address, memory, IRQ, or DMA, it may lie in your application's source code. Sometimes the same piece of code can generate different effects under two computers operating at different speeds - especially if that piece of code is communicating with peripheral hardware and employing a polling method. Because polling is dependent on the speed of the CPU, errors can occur if your computer is faster than the peripheral hardware with which it's communicating. In general, it is a good programming practice to make sure that your software is handshaking well with your hardware. Even though this may slow things down, it will ultimately make your application more robust and easily upgradeable.
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