machine/usb/adc/midi: fix PitchBend

sago35 · deadprogram · commit b8420e78bb3f · 2024-10-25T06:25:49.000+01:00
diff --git a/src/machine/usb/adc/midi/messages.go b/src/machine/usb/adc/midi/messages.go
@@ -177,7 +177,7 @@ func (m *midi) PitchBend(cable, channel uint8, bend uint16) error {
 		return errInvalidMIDIPitchBend
 	}
 
-	m.msg[0], m.msg[1], m.msg[2], m.msg[3] = ((cable&0xf)<<4)|CINPitchBendChange, MsgPitchBend|((channel-1)&0xf), byte(bend&0x7f), byte(bend>>8)&0x7f
+	m.msg[0], m.msg[1], m.msg[2], m.msg[3] = ((cable&0xf)<<4)|CINPitchBendChange, MsgPitchBend|((channel-1)&0xf), byte(bend&0x7f), byte(bend>>7)&0x7f
 	_, err := m.Write(m.msg[:])
 	return err
 }

Original file line number	Diff line number	Diff line change
`@@ -177,7 +177,7 @@ func (m *midi) PitchBend(cable, channel uint8, bend uint16) error {`
`177`	`177`	`return errInvalidMIDIPitchBend`
`178`	`178`	`}`
`179`	`179`
`180`		`- m.msg[0], m.msg[1], m.msg[2], m.msg[3] = ((cable&0xf)<<4)\|CINPitchBendChange, MsgPitchBend\|((channel-1)&0xf), byte(bend&0x7f), byte(bend>>8)&0x7f`
	`180`	`+ m.msg[0], m.msg[1], m.msg[2], m.msg[3] = ((cable&0xf)<<4)\|CINPitchBendChange, MsgPitchBend\|((channel-1)&0xf), byte(bend&0x7f), byte(bend>>7)&0x7f`
`181`	`181`	`_, err := m.Write(m.msg[:])`
`182`	`182`	`return err`
`183`	`183`	`}`