Handbook
Glossary
2dup ( x y -- x y x y )
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dup ( x -- x x )
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3dup ( x y z -- x y z x y z )
Vocabulary
kernel
Word description
This is a shuffle word, rearranging the top of the datastack as indicated by the word's stack effect: ( x y -- x y x y ).
Definition
IN:
kernel
PRIMITIVE:
2dup
( x y -- x y x y )