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By default, numbers in Forth are single-precision integers that are one cell in size. They can be signed or unsigned, depending upon how you treat them. For the rules used by the text interpreter for recognising single-precision integers see 5.13.2 Number Conversion.
These words are all defined for signed operands, but some of them also
work for unsigned numbers:
doc-+ doc-1+ doc-- doc-1- doc-* doc-/ doc-mod doc-/mod doc-negate doc-abs doc-min doc-max doc-floored
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