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17 lines
336 B
Lua
17 lines
336 B
Lua
%import textio
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main {
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; $1F9C0 - $1F9FF PSG registers
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sub start() {
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txt.print("tone")
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uword freq = 1181
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cx16.vpoke(1, $f9c0, lsb(freq))
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cx16.vpoke(1, $f9c1, msb(freq))
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cx16.vpoke(1, $f9c2, %11111111) ; volume
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cx16.vpoke(1, $f9c3, %11000000) ; triangle waveform
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}
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}
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