Game Boy Advance/Talk

I might put out my photos of it.

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Damian Yerrick summarized old talk:

Game Boy products contain a "integral 8 bit CISC CPU for compatibility," namely the same Sharp Z80-like CPU (not an official Zilog design) used in the Game Boy Color. It runs at 4 MHz when playing GB titles and 8 MHz when playing GBC titles. GBA does not contain a 6502 processor (as somebody changed); Z80 instructions are completely incompatible with MOS Technologies 6502 instructions. Z80 and 6502 are not members of the same family; their instruction sets and timings aren't even close. We're not sure whether the ARM7TDMI and the GBZ80 are on the same die.

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Just for reference, the 6502 processor (with BCD mode removed) was used in NES; the Super NES used a [WDC 65C816]?. However, the existence of the PocketNES? emulator for GBA proves that NES emulation (and thus 6502 emulation) on ARM is far from impossible. --Damian Yerrick

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