Figured out an additional tweak: if you put the hmovetab at the very end of
a page, then the AND #$0F isn't required. This saves a couple of additional
cycles.
I've also removed the STA HMOVE since there isn't any drawing on the line
anyway and it could cause problems since the STA HMP1 is less than 24 cycles
after (although it might be necessary for HMOVE bars). Depending on the
desired sprite coordinates & max/min position there are some available
cycles.
STA WSYNC
.wait
SBC #$0F ; Battlezone calculate/wait
BCS .wait ; 2 in 1 magic !
TAY ; Update Manuel's magic
LDA hmovetab-241,Y ; with Eric's 2 in 1 magic
STA HMP1 ; Fine Position second sprite
SBC #$0F ; carry is clear, so subtract $0F instead of $10
STA HMP0 ; Fine Position first 1 pixel father right
STA RESP0 ;
STA RESP1 ;
STA WSYNC
STA HMOVE
ORG $xxF1
hmovetab
.byte $70,$60,$50,$40,$30,$20,$10
.byte $00,$F0,$E0,$D0,$C0,$B0,$A0,$90
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