2019-03-15 15:23:47 +01:00
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# Working With Floating Point
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Some RETRO systems include support for floating point numbers.
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When present, this is built over the system `libm` using the
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C `double` type.
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Floating point values are typically 64 bit IEEE 754 double
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precision (1 bit for the sign, 11 bits for the exponent, and
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the remaining 52 bits for the value), i.e. 15 decimal digits
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of precision.
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## Prefix
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Floating point numbers start with a `.`
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Examples:
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Token Value
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.1 1.0
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.0.5 0.5
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.-.4 -0.4
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.1.3 1.3
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