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Double data type

Hello,

I was wondering if anyone has (or could point me in the direction of) source code or algorithms for performing 64 bit addition, subtraction, multiplication and division on the 8051. I'm aware that 64 bit math is not natively supported with the Keil tools. I'm also well aware that the calculations will be as slow as mud - time is not critical in my application.

Thanks,
Tony

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