
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.
12 lines
175 B
Plaintext
12 lines
175 B
Plaintext
CODE EXECUTE
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DE POP,
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chkPS,
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lblexec @ JP,
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CODE EXIT
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PC ORG @ 0x0d + ! ( stable ABI JP )
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C 0 IX+ LDrIXY,
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B 1 IX+ LDrIXY,
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IX DECd, IX DECd,
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JPNEXT,
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