200 V=53248
220 POKE V+21,1+2
230 POKE V+39,1
231 POKE V+40,1
240 POKE V+0,150
241 POKE V+1,120
242 POKE V+2,120
243 POKE 2040,32
280 POKE 2040,32
281 POKE 2041,33
300 BW=BW+1
310 BH=INT(BW/256):BL=BW-BH*256
320 POKE V+0,BL
330 POKE V+16,BH
340 IF BW>320 THEN BW=0
350 GOTO 300