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e31527f5ac
There are many situations where it can be useful. Worth it.
17 lines
416 B
Plaintext
17 lines
416 B
Plaintext
CODE ROT ( a b c -- b c a )
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HL POP, ( C ) DE POP, ( B ) IY POP, ( A ) chkPS,
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DE PUSH, ( B ) HL PUSH, ( C ) IY PUSH, ( A )
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;CODE
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CODE ROT> ( a b c -- c a b )
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HL POP, ( C ) DE POP, ( B ) IY POP, ( A ) chkPS,
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HL PUSH, ( C ) IY PUSH, ( A ) DE PUSH, ( B )
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;CODE
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CODE DUP ( a -- a a )
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HL POP, chkPS,
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HL PUSH, HL PUSH,
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;CODE
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CODE ?DUP
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HL POP, chkPS, HL PUSH,
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HLZ, IFNZ, HL PUSH, THEN,
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;CODE
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