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GameBoyAdvanceSpecs
There are two processors in the GameBoy Advance. A processor similar to Zilog Z80 for the GB Color mode and a 16MHz ARM/Thumb processor for GBA mode. The GBA mode processor either runs in ARM mode (32 bit) or Thumb mode (16 bit). Each mode has it's own advantages.
The GBA decides which processor to use on power up, depending on if there is a notch on the back of the cart or not. There is no currently known method for switching processors after powerup or for using both at the same time. In GBA mode, ARM processor mode is enabled during power up and during interrupt handling.
The video hardware is similar to that of the SNES console. It is capable of effects such as so-called "Mode 9" effects (rotation and scaling of sprites). This enables effects such as those found in Mario Kart for SNES and GBA.
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GameBoyAdvanceSpecs
There are two processors in the GameBoy Advance. A processor similar to Zilog Z80 for the GB Color mode and a 16MHz ARM/Thumb processor for GBA mode. The GBA mode processor either runs in ARM mode (32 bit) or Thumb mode (16 bit). Each mode has it's own advantages.
The GBA decides which processor to use on power up, depending on if there is a notch on the back of the cart or not. There is no currently known method for switching processors after powerup or for using both at the same time. In GBA mode, ARM processor mode is enabled during power up and during interrupt handling.
The video hardware is similar to that of the SNES console. It is capable of effects such as so-called "Mode 9" effects (rotation and scaling of sprites). This enables effects such as those found in Mario Kart for SNES and GBA.
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