79a38ecc08
automatically built helper tools. Star Trek goes up from 40243 to 40779 bytes, but should be a lot faster.
38 lines
675 B
C
38 lines
675 B
C
.sect .text
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.sect .rom
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.sect .data
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.sect .bss
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.sect .text
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! Fetches the word at negative stack offset OFFSET into de.
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#define PASTE(a, b) a ## b
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#define LABEL(prefix, offset) PASTE(prefix, offset)
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.define LABEL(.floadn, OFFSET)
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LABEL(.floadn, OFFSET):
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#if OFFSET == 0
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#error "0 shouldn't happen"
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#elif OFFSET == 1
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mov l, c
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mov h, b
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mov d, m
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dcx h
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mov e, m
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ret
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#elif OFFSET == 2
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mov l, c
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mov h, b
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dcx h
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mov d, m
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dcx h
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mov e, m
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ret
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#else
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lxi h, -OFFSET
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dad b
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mov e, m
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inx h
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mov d, m
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ret
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#endif
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