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Topic Summary
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Posted by: Lalli |
Posted on: October 24th, 2001, 2:01pm |
Why does a GBC binary file that has been written to a FA flash card made for GBA not run on the GBA when GBC cartridges work ?
How does the GBA sense the differense of GB and GBA carts ?
How do the GB cartridges work on the GBA, does the ARM emulate the GB HW or is the old CPU in the GBA to ?
Electronic difference between carts have nothing to do with the binary that is stored on them so I must asume that you could store GB binaries and then activate the GB emulation.
I have seen all kinds of answers were lack of knowlage is hidden behind "common sense" answers on these questions but I would like to see some real answers with details.
Thanks
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Posted by: Snubber |
Posted on: November 12th, 2001, 7:50pm |
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From what I understand the gba contains an original Z80 chip in it, commonly found in the gbc and gb. If you look at your GBA carts you will see a little notch in the casing next to the connector. This notch prevents the cart from hitting a *physical* switch in the gba which, i belive, toggles between gb/gba. I have not seen any evidence of a software style switch. I think the only hope would be to write an actual emulator for the gba (most likely buggier than original hardware).
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Posted by: Lalli |
Posted on: November 12th, 2001, 11:34pm |
Hi, thanks for the reply
That would make sense, I don't know if the new GB Bridge has any electronics or just the switch/sensor notch, and shutting the power of the CPU that is not in use would make sense for power preservation.
But on http://www.gbaemu.com/ I saw that someone is writing a GB emulator for the GBA, it could be buggy but if it does the same job as the PocketNes 5 it will be good enough.
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