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Ahoy 1985 August
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Ahoy_Magazine_85-08_1985_Double_L.d64
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vic boink
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.txt
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Commodore BASIC
|
2022-10-26
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566b
|
22 lines
1 rem sound effects
2 rem boink (vic version)
10 gosub 900:goto 100
20 poke fr(0),p(20):poke fr(1),0:poke fr(2),0:poke fr(3),p(20)
30 print "."
40 for i=15 to 0 step -1:poke vl,i:next:poke fr(3),0
50 for i=1 to 15 step 2:poke fr(0),p(100+i):poke vl,i:next
60 for i=0 to 3:poke fr(i),0:next:poke vl,0
90 return
99 rem routine to play sounds when shift is pressed
100 print "press shift";
110 if peek(653)=0 then 110
120 gosub 20:goto 100
898 rem routine to set up variables
899 rem set up sound control addresses
900 dim fr(3),p(127)
910 fr(0)=36874:for i=1 to 3:fr(i)=fr(i-1)+1:next
920 for i=0 to 127:p(i)=i+128:next
929 rem set volume address
930 vl=36878
990 return