Nintendo Game Boy Advance

The Game Boy Advance (GBA) is a handheld videogame console developed, manufactured and marketed by Nintendo. It is one of the latest in the Game Boy series of consoles, and the successor to the popular Game Boy Color. more...

It was released in Japan on March 21, 2001, in North America on June 11, 2001, in Europe on June 22, 2001, and in China on June 8, 2004(Not inculding Hong Kong). Its codename during development was Project Atlantis.

Hardware

The Game Boy Advance is backward compatible with most games previously released for the Game Boy or the Game Boy Color, as well as new software developed to take advantage of the new technical capabilities of the system. It is powered by two AA batteries, which give about 15–30 hours of play time, as well as an optional power supply that plugs directly into the GBA's battery bracket.

Processors

The GBA has a custom 32-bit 16.8-MHz ARM processor (ARM7TDMI) based on a RISC architecture, which is much more suited to the C programming language than the 8-bit Z80-like processor used in older Game Boy models. The ARM processor can run both 32-bit ARM and 16-bit "Thumb" instruction set encodings. The system also contains an 8.4-MHz Z80-like processor to provide support for legacy GB software; however, both processors cannot be active at the same time.

Display

The 2.9" LCD is capable of a maximum of 240×160 pixels in 15-bit color (32,768 colors). This display includes more pixels than Game Boy's 160×144; when playing legacy games, the user can press the "L" or "R" button to switch the display between 160×144 with a black border and scaling to 240×144 pixels. Early games had very dark color palettes because the display in the development kits was much brighter than the one in the production units; the production display has a gamma value of 4. Newer titles use gamma correction in their palettes.

If the color LCD has a fault, it is that the Game Boy Advance is lit by ambient light. Users quickly learned to tilt the device to take advantage of window or overhead illumination. An aftermarket internal lighting kit known as the Afterburner was briefly popular before the introduction of the Game Boy Advance SP, and influenced the development of the new model.

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