I have been figuring out the z80 code for a couple
of weeks now and have come across a couple of things that do not make
sense. What am I wondering is, if anyone knows:
M1_n - value is set in more
than one location, however, does not appear to acutally be used by any
logic.
IncDecZ - not completely sure its
purpose.
NextIs_XY_Fetch - not completely
sure on this one either.
If anyone can help me out it would be
great.
Ian
|