Difference between revisions of "Galaxian-based hardware"
From Sega Retro
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'''Galaxian-based hardware''' was used for several [[Sega]] licensed [[arcade]] games in the early 1980s. It was based on [[Namco]]'s [[Galaxian]] arcade hardware, which debuted in 1979.{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/galaxian.cpp Namco Galaxian (MAME)]}} | '''Galaxian-based hardware''' was used for several [[Sega]] licensed [[arcade]] games in the early 1980s. It was based on [[Namco]]'s [[Galaxian]] arcade hardware, which debuted in 1979.{{ref|[https://github.com/mamedev/mame/blob/master/src/mame/drivers/galaxian.cpp Namco Galaxian (MAME)]}} | ||
| − | Sega's variants of the hardware were based on companies such as [[Konami]], [[Nihon Bussan]], and [[Alpha Denshi]], which all used Galaxian-based hardware at the time. Several modifications were made to the hardware, most notably by ''[[Jump Bug]]'', which added parallax scrolling capabilities. | + | Sega's variants of the hardware were based on the arcade hardware used by the companies it licensed from, such as [[Konami]], [[Nihon Bussan]], and [[Alpha Denshi]], which all used Galaxian-based hardware at the time. Several modifications were made to the hardware, most notably by ''[[Jump Bug]]'', which added parallax scrolling capabilities. |
==Technical Specifications== | ==Technical Specifications== | ||
Revision as of 22:29, 3 October 2016
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| Galaxian-based hardware | |||||
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| Manufacturer: Namco (variants by Sega) | |||||
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Galaxian-based hardware was used for several Sega licensed arcade games in the early 1980s. It was based on Namco's Galaxian arcade hardware, which debuted in 1979.[1]
Sega's variants of the hardware were based on the arcade hardware used by the companies it licensed from, such as Konami, Nihon Bussan, and Alpha Denshi, which all used Galaxian-based hardware at the time. Several modifications were made to the hardware, most notably by Jump Bug, which added parallax scrolling capabilities.
Technical Specifications
The technical specifications for this hardware include:[1][2][3][4]
- Main CPU: Zilog Z80 @ 3.072 MHz (8-bit & 16-bit instructions @ 0.45 MIPS)
- Sound hardware: Namco Galaxian sound hardware (one programmable 4/8-bit waveform channel, three 4-bit square wave channels, two 17-bit noise channels, one modulated noise pulse channel)
- GPU chipset: Namco Galaxian video hardware
- Display resolution: 256×224 (horizontal), 224×256 (vertical)
- Overscan resolution: 384×264 (horizontal), 264×384 (vertical)
- Refresh rate: 60.60606 Hz (V-sync)
- Color model: RGB
- Background planes:
- Sprite capabilities: 8×8 to 16×16 sizes, 4 colors per sprite, 15 sprites per scanline, 240 texels per scanline, sprite flipping, sprite animation[6]
List of Games
Sega licensed arcade games that ran on this hardware include:[1]
- Moon Cresta (1980)
- Frogger (1981)
- Jump Bug (1981)
- Super Cobra (1981)
- Turpin (1981)
References
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| Originating in arcades |
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