[Prev] [Next] [Contents] [Commodore] [New] [Search] [Home]

EXAMPLE PROGRAM 3 (EXAMPLE 1 MODIFIED):

 5 S=54272
 10 FORL=STOS+24:POKEL,0:NEXT
 20 POKES+5,9:POKES+6,0
 30 POKES+24,15
 40 READHF,LF,DR
 50 IFHF<0THENEND
 60 POKES+1,HF:POKES,LF
 70 POKES+4,17
 80 FORT=1TODR:NEXT
 90 POKES+4,16:FORT=1TO50:NEXT
 100 GOTO40
 110 DATA25,177,250,28,214,250
 120 DATA25,177,250,25,177,250
 130 DATA25,177,125,28,214,125
 140 DATA32,94,750,25,177,250
 150 DATA28,214,250,19,63,250
 160 DATA19,63,250,19,63,250
 170 DATA21,154,63,24,63,63
 180 DATA25,177,250,24,63,125
 190 DATA19,63,250,-1,-1,-1

Now RUN the program.

Notice how the sound quality is different, less twangy, more hollow. That's because we changed the sawtooth waveform into a triangular waveform (shown left). The third musical waveform is called a variable pulse wave (shown right).


[Prev] [Next] [Contents] [Commodore] [New] [Search] [Home]
This page has been created by Sami Rautiainen.
Read the small print. Last updated February 10, 2002.