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How does the Rabbits performance compare to a Z80 or Z180?

April 26, 2017compare PERFORMANCE rabbit z180 Z80

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How does the Rabbits performance compare to a Z80 or Z180?

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A. For comparable practical systems executing C language code, the Rabbit is about 4x faster than the Z80 and 3x faster than the Z180. A practical system is a system with a low-cost flash memory for code and a low-power static RAM for data. The Rabbit’s software floating point is very fast, about 12 µs to add or multiply. An integer 16 x 16 multiply requires about 0.5 µs.