2020-01-20 07:32:37 +00:00
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#importonce
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.filenamespace Sid
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https://www.c64-wiki.com/wiki/SID
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// ========================================================
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// ////// CONSTANTS ///////////////////////////////////////
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// ========================================================
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.label FV1L = $d400 // frequency voice 1 low byte
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.label FV1H = $d401 // frequency voice 1 high byte
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.label PCWV1L = $d402 // pulse wave duty cycle voice 1 low byte
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// TODO: Add more
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.label FMVC = $d418 // filter mode and main volume control
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// Bit 7 mute voice 3
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// Bit 6 high pass
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// Bit 5 band pass
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// Bit 4 low pass
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// Bit 3-0 main volume
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2020-01-21 02:09:18 +00:00
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// ========================================================
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// ////// METHODS /////////////////////////////////////////
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// ========================================================
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* = * "SID HW"
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init: {
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ldx #$00
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stx Sid.FMVC // TURN OFF SID
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rts
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}
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2020-01-20 07:32:37 +00:00
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