20 lines
356 B
Forth
20 lines
356 B
Forth
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~~~
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:double:var (nns-)
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d:create swap , , ;
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:double:fetch (a-nn)
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fetch-next swap fetch ;
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:double:store (nna-)
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&swap dip store-next store ;
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:double:const (nns-)
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double:var &double:fetch does ;
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:double:swap (nnmm-mmnn)
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rot push rot pop ;
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:double:dip (mnq-mn) rot rot push push call pop pop ;
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:double:sip (mnq-mn) &dup-pair dip double:dip ;
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~~~
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