Calculators and 64-bit integer math.

Completed HC08 emulator in Java; will post as soon as I get a chance to validate the code. Also completed a basic 64-bit integer library for the HC08 that fits in about 1.2k. (Multiply and divide use shift/add rather than the HC08 mul and div instructions.) My goal: a basic floating point calculator written for the HC08.

Because who says a steampunk calculator should work like the el-cheapo four-banger calculators you get at the office supply store, but with brass inlay?

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