Nick Eastridge (GB Driver)

Nick Eastridge (GB Driver)

Released 1990-07-?? Programmers Nick Eastridge Language Z80 Assembly Formats ?

Nick Eastridge (GB Driver) is an unofficial name of the sound driver programmed by Nick Eastridge for his software developer Eastridge Technology. It was mostly used in games published by Mindscape.

Release History

The driver was first used in one of Eastridge Technology's first games, Paperboy. Eastridge Technology also developed the NES version as well. Paperboy was released in the USA as well as Europe, and WWF King of the Ring made it to Japan as well. Other than that, most of the games were strictly North American releases, as that is where they were developed. The driver was used in 8 Game Boy games, as well as 3 Game Boy Color games.

Output

The driver outputs to the DMG-CPU B chip.

Games

Released	Title	Sample
1990-07-??	Paperboy (GB)
1991-07-??	Klax (GB)
1991-09-??	Gauntlet II (GB)
1992-??-??	Pit-Fighter (GB)
1992-04-??	Paperboy 2 (GB)
1992-10-??	Miner 2049er (GB)
1993-??-??	The Ren & Stimpy Show: Veediots! (GB)
1993-09-??	WWF King of the Ring (GB) (キングオブリング)
1999-12-??	Pong: The Next Level (GBC)
2000-09-23	Frogger II: Swampy's Revenge (GBC)
2000-09-25	Galaga: Destination Earth (GBC)

Technical

Frequency Registers

B-6 = 7DF
A#6 = 7DD
A-6 = 7DB
G#6 = 7D9
G-6 = 7D6
F#6 = 7D4
F-6 = 7D1
E-6 = 7CE
D#6 = 7CB
D-6 = 7C8
C#6 = 7C5
C-6 = 7C1
B-5 = 7BE
A#5 = 7BA
A-5 = 7B6
G#5 = 7B1
G-5 = 7AC
F#5 = 7A7
F-5 = 7A2
E-5 = 79D
D#5 = 797
D-5 = 790
C#5 = 78A
C-5 = 783
B-4 = 77B
A#4 = 773
A-4 = 76B
G#4 = 762
G-4 = 759
F#4 = 7F4
F-4 = 744
E-4 = 739
D#4 = 72D
D-4 = 721
C#4 = 714
C-4 = 706
B-3 = 6F7
A#3 = 6E7
A-3 = 6D6
G#3 = 6C4
G-3 = 6B2
F#3 = 69E
F-3 = 689
E-3 = 672
D#3 = 65B
D-3 = 642
C#3 = 627
C-3 = 60B
B-2 = 5ED
A#2 = 5CE
A-2 = 5AC
G#2 = 589
G-2 = 563
F#2 = 53B
F-2 = 511
E-2 = 4E5
D#2 = 4B5
D-2 = 483
C#2 = 44E
C-2 = 416
B-1 = 3DA
A#1 = 39B
A-1 = 358
G#1 = 312
G-1 = 2C7
F#1 = 277
F-1 = 223
E-1 = 1C9
D#1 = 16B
D-1 = 107
C#1 = 9D
C-1 = 2C