Unknown C64 Driver
|Unknown C64 Driver|
This driver was used in Commodore 64 games by unrelated companies with either unknown or unsourced audio credits.
In all songs, each note has a byte whose 4 LSBs stand for the instrument number and 2 more significant bits for modulation type (10hex = pitch bend up, 20hex = down, 30hex = vibrato). In most games, each note also has its own duration and modulation depth.
Unusually, in memory, a note is not followed by its properties, but a sequence of notes is followed by sequences of their properties.
|1986-0?-??||Empire (C64)||Unknown||Fouad "Foo" Katan||Firebird|
|1987-0?-??||Street Beat (C64)||Mark Harrison||Significance||Mastertronic|
|1987-12-1?||Psycho Soldier (C64)||According to GB64, Paul Summers||Source||Imagine|
|1987-1?-??||FireTrap (C64)||According to HVSC, Chris Gill||Source||Electric Dreams Software|
|1989-0?-??||Rainbow Warrior (C64)||According to HVSC, Tony Gibson, Mark Harrison||Tony Gibson, Mark Harrison||MicroStyle|
|2015-12-21||Sigue Sigue Sputnik (C64)||According to GTW64, Mark Harrison||Significance|