Gau's Rage 75%

ah, A needs to be preserved surrounding the "jsr $4b5a / cmp #$40".

and can the "sep #$20" and "rep #$20" be chucked to save space?

Sorry but I don't get it. What do you mean "Preserved" and "chucked"? 

You mean like this? 

header
!freespace = $c2a65a

org $c20600
jsr newfunc

org !freespace
newfunc:
jsr $4b5a
cmp #$40
rts


or like this?


header
!freespace = $c2a65a

org $c20600
jsr newfunc

org !freespace
newfunc:
sep #$20
jsr $4b5a/cmp #$40
rep #$20
rts