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e4a4a9800d
It's a bit more inconvenient in terms of register protection (BC is much more generally useful than IY), but it makes tight spots such as next and execute much faster, so I think it's worth it.
17 lines
320 B
Plaintext
17 lines
320 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 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,
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HL PUSH,
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HLZ, IFNZ, HL PUSH, THEN,
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;CODE
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CODE DROP ( a -- )
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HL POP,
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;CODE
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