6 lines
229 B
Forth
6 lines
229 B
Forth
: .bool ( ? -- ) if ." true" else ." false" then ;
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: logic ( a b -- ) 0<> swap 0<> swap
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cr ." a = " over .bool ." b = " dup .bool
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cr ." a and b = " 2dup and .bool
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cr ." a or b = " over or .bool
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cr ." not a = " 0= .bool ;
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