XA
LINK 800
COPY 3 X
REPL REVERSE
JUMP START
MARK REVERSE
MULI X -1 X
MARK START
LINK X
LINK X
NOTE DETERMINE SIDE
TEST X > 0
REPL CLONE
NOTE SYNC
@REP 2
NOOP
@END
MARK LOOP
TJMP WRITE
COPY #NERV M
NOOP
JUMP LOOP
MARK WRITE
COPY M #NERV
NOOP
NOOP
JUMP LOOP
MARK CLONE
LINK X
REPL CLONE
NOTE FLIP T
TEST T = 0
JUMP LOOP