ack/mach/i80/libem/faddrn.h

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! Fetches the word at negative stack offset OFFSET into de.
#define PASTE(a, b) a ## b
#define LABEL(prefix, offset) PASTE(prefix, offset)
.define LABEL(.faddrn, OFFSET)
LABEL(.faddrn, OFFSET):
#if OFFSET == 0
mov l, c
mov h, b
#elif OFFSET == 1
mov l, c
mov h, b
dcx h
#elif OFFSET == 2
mov l, c
mov h, b
dcx h
dcx h
#else
lxi h, -OFFSET
dad b
#endif
ret