Zitat von
Mychess
You can put the good byte for a good checksum at the end of the patch.
However, a curious programmer (Fh..) could be astonished by a byte never adressed by the patch.
Yes, I'm a VERY curious programmer!
Zitieren:
The BF is a "branch never", as BT is a branch always, without testing any code condition.
Ok, now I understand that this jump is never done.
But what is an instruction BF good for, when it actually never does anything?
The 2 clocks CPU lost is of course no problem, because I think this bugfix code is only executed when the user changes the level (to or away from a Fun level).