Sega Fonz hardware
From Sega Retro
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| Sega Fonz hardware | |||||||||
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| Manufacturer: Sega Enterprises, Inc. (US), Sega Enterprises, Ltd. (JP) | |||||||||
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Sega Fonz hardware was discrete logic arcade hardware from both Sega Enterprises, Inc. and Sega Enterprises, Ltd. that debuted in 1976. It was used for several of their racing games from 1976 to 1977, debuting with Road Race (1976) and notably used for Fonz (1976). This was the first arcade hardware capable of producing pseudo-3D graphics with forward scrolling and sprite scaling in a third-person perspective, making it a precursor to the VCO Object (1981) and Sega Hang-On hardware (1985). Sega Fonz hardware also uses an 8-track player to playback sound effects, like Sega's earlier electro-mechanical games MotoPolo (1968), Jumbo (1969), Sand Buggy (1972) and Dan-Bo (1973).
Technical specifications
- PROM chips: 2x MMI 6306-1
- Data bus: 8-bit (2x 4-bit)
- Address bus: 9-bit
- Graphical capabilities: Pseudo-3D, third-person perspective, vertical scrolling, forward scrolling, sprite scaling, road scaling, collision detection,[5][6] background scaling, partial sprite/background rotation & distortion[7]
- Resolution: 243×297 pixels[8]
- Road size: 211×258 pixels (default), scaling and adjustable[9]
- Colors on screen: 7 colors (black, white, red, 4 greys)[8]
- Sprite colors: 3 colors (black, white, transparent)
- Road colors: 5 colors (black, white, 3 greys)
- Sound: Audio tape[12][8]
- Operator adjustments:[9]
- VR-1: Opponent sprite size
- VR-2: Size of all sprites
- VR-3: Road shape
- VR-4: Road swing width
- VR-5: Road swing frequency
- VR-6: Road width
- VR-7: Left road shoulder size
- VR-8: Right road shoulder size
- VR-9: Player sprite size
- VR-10: Game time
- VR-11: Upper limit of vertical player sprite size
- VR-12: Lower limit of vertical player sprite size
List of games
- Road Race (1976)
- Man T.T. (1976)
- Moto-Cross (1976)
- Fonz (1976)
- Twin Course T.T. (1977)
References
- ↑ File:Fonz service manual.pdf, page 9
- ↑ File:Fonz service manual.pdf, page 16
- ↑ Monolithic Memories-MMI Bipolar LSI Data Book
- ↑ PROM (Mike's Arcade)
- ↑ File:Fonz DiscreteLogic US Flyer.pdf
- ↑ 6.0 6.1 File:Fonz service manual.pdf
- ↑ Sega The Fonz (1976) video arcade gameplay
- ↑ 8.0 8.1 8.2 8.3 Sega Discrete Logic Hardware (System 16)
- ↑ 9.0 9.1 9.2 File:Fonz service manual.pdf, page 6
- ↑ File:Roadrace flyer3.jpg
- ↑ File:Fonz service manual.pdf, page 8
- ↑ File:Fonz service manual.pdf, page 15
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