Jeff Lefferts (NES Driver)
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Jeff Lefferts is an unofficial name of the sound driver, likely programmed by Jeff Lefferts. It was only used in two games, one of which credits Jeff for sound programming (Peter Pan). The other was programmed by the same person who programmed Peter Pan & the Pirates, Richard Seaborne. Ed Bogas is the only composer known for using the driver.
Equilibrium developed a game based on Vanilla Ice called Rap Quest, but the game was never finished/released. It is assumed they would have used the same sound driver.
Contents
Release History
The first game to use the sound driver was Fox's Peter Pan & the Pirates: The Revenge of Captain Hook which was developed by Equilibrium. The other game was developed by Jaleco's USA division, Cyberball. Both of the games were North American exclusive titles.
Output
The driver uses the RP2A03. The DPCM channel isn't used musically, but Cyberball contains a digitized voice.
Instruments
The driver uses the 2A03's hardware decay instruments.
Games
| Released | Title | Sample |
|---|---|---|
| 1991-01-?? | Fox's Peter Pan & the Pirates: The Revenge of Captain Hook (NES) | |
| 1992-??-?? | Cyberball (NES) | |
| Unreleased | Rap Quest (NES) |
Technical
Frequency Registers
B-6 = 1B A#6 = 1D A-6 = 1F G#6 = 21 G-6 = 23 F#6 = 25 F-6 = 27 E-6 = 29 D#6 = 2C D-6 = 2E C#6 = 31 C-6 = 35 B-5 = 38 A#5 = 3B A-5 = 3E G#5 = 42 G-5 = 47 F#5 = 4A F-5 = 4F E-5 = 54 D#5 = 59 D-5 = 5E C#5 = 64 C-5 = 6A B-4 = 70 A#4 = 77 A-4 = 7E G#4 = 86 G-4 = 8E F#4 = 96 F-4 = 9F E-4 = A9 D#4 = B3 D-4 = BD C#4 = C9 C-4 = D4 B-3 = E1 A#3 = EF A-3 = FD G#3 = 10C G-3 = 11C F#3 = 12D F-3 = 13F E-3 = 152 D#3 = 166 D-3 = 17B C#3 = 192 C-3 = 1AA B-2 = 1C3 A#2 = 1DE A-2 = 1FB G#2 = 219 G-2 = 23A F#2 = 25B F-2 = 27F E-2 = 2A5 D#2 = 2CD D-2 = 2F8 C#2 = 325 C-2 = 356 B-1 = 387 A#1 = 3BD A-1 = 3F5 G#1 = 430 G-1 = 473 F#1 = 4B5 F-1 = 4FE E-1 = 54B D#1 = 59B D-1 = 5EF C#1 = 64A C-1 = 6AD B-0 = 70E A#0 = 77A A-0 = 7EA
Addresses
Cyberball: $1F273-1F308
Peter Pan: $1D328-$1D3BD
