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Commodore BASIC  |  1985-01-01  |  354 b   |  10 lines
  1. 5 print"[147]"
  2. 10 forl=54272to54295:pokel,0:next:poke54296,15
  3. 20 poke54277,8:poke54278,255:poke54276,23:rem envelope and waveform voice 1
  4. 25 f1=100:f2=230:rem frequencies to be poked into voices 1 and 3
  5. 30 f2=4:rem f2 controls lower pitch limit
  6. 40 forz=1to3:poke54287,f2:rem z = no. of cycles
  7. 50 forf1=1to200:rem f1 is upper pitch limit
  8. 60 poke54273,f1:f2=f2+.01:nextf1:nextz:poke54278,15
  9. 70 list10-60
  10.