blob: 10da0b7fba8fadcfa2aeba47b1d37c960320f317 (
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enum TUNE{
LOW=0, MEDIUM=(1<<3), HIGH=(2<<3)
};
int transkey(unsigned int index)
{
int note, tune;
note = index%7;
index /= 7;
switch(index){
case 0:
tune = HIGH;
break;
case 1:
tune = MEDIUM;
break;
case 2:
tune = LOW;
break;
default:
return -1;
}
return note|tune;
}
int get_showcode(unsigned int note, int raise)
{
int idx;
if (note<=2){
idx = note*2;
}
else{
idx = note*2-1;
}
idx += raise;
if (idx>=12){
idx -= 12;
}
return idx+'a';
}
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