> Will this work? If so, any ideas on how to do the delay easily? (small
> enough for zero-page, so it doesn't need a SC?)
How about...
LDA COUNT ; WAIT CYCLES = 16 - COUNT
LSR A ; SETUP CARRY BIT
STA JUMP+1 ; SELF MODIFYING...CHANGES JUMP VALUE
; (not sure how to convey this)
LDX #1 ; SETUP X FOR OPTIONAL LOOP ; SETUP Z FLAG
DELAY STA WSYNC
BCC JUMP ; WASTE 2 OR 3 CYCLES
JUMP BNE END ; WASTE 3 CYCLES ; DEFAULT IS 5 CYCLES TOTAL
NOP ; WASTE 2 CYCLES
NOP ; WASTE 2 CYCLES
NOP ; WASTE 2 CYCLES
NOP ; WASTE 2 CYCLES
NOP ; WASTE 2 CYCLES
END ...
This should give you a delay between 5 and 16 cycles after the WSYNC.
You can add more NOP's or a delay loop to get longer delays.
-Chris
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