cLinux on Nintendo Gameboy

I thought the CPU in the Gameboy was a stripped down Z80. This doesn't seem likely to run Clinux. Clarence

Reply to
Clarence Wilkerson
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Game Boy Advanced has a 32 bit ARM7TDMI processor (RISC) with a CPU speed of about 16.67 MHz. It has also got its own graphics processor to support the main cpu . The game boy advanced includes a Z80 processor which is used to run games for the old gameboy and gameboy color. You can run eCos on Game Boy Advanced or Game Boy Advanced SP. See

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Regards,

Marcio

Reply to
Marcio Montenegro

The Advance and SP models use an ARM7 CPU.

Reply to
Lewin A.R.W. Edwards

The GBA doesn't have a Z80 processor anywhere inside. The ARM7TDMI processor can execute both 32-bit ARM instructions and 16-bit thumb instructions. The games for the older game boys use the 16-bit thumb mode for execution.

Reply to
Dave Huseby

What has Thumb got to do with Z80? Thumb code is not Z80 code. Or are you saying that the Z80 emulator happens to be written in Thumb code?

Reply to
Lewin A.R.W. Edwards

Are you sure what you are talking about ?

The original GB had a Z80 derivative. The GBA has an ARM7TDMI. So they either put also an Z80 on the ASIC _or_ the ARM cpu emulates the Z80. But this has nothing todo with ARM or THUMB.

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42Bastian
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Reply to
42Bastian Schick

snipped-for-privacy@yahoo.com (42Bastian Schick) wrote in news: snipped-for-privacy@News.CIS.DFN.DE: The GBA has a single ASIC contain both an Z80 processor and a 32bit ARM7TDMI. There is a switch beside the cartage connector that tell the GBA which cartage type is plugged into the GBA. For Z80 mode, the cartage runs on a 8bit 5V TTL bus, for ARM mode, the cartage runs on a 16bit 3.3V LVTTL mode.

Hope this clears things up a bit.

Reply to
Tuna

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