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Game Boy Advance #164

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avivace opened this issue Feb 19, 2020 · 2 comments
Closed

Game Boy Advance #164

avivace opened this issue Feb 19, 2020 · 2 comments
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enhancement meta Changes on the structure list, general meta discussions

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@avivace
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avivace commented Feb 19, 2020 •
edited

  • Mention somewhere (maybe in the "disambiguation" box?) that GBA is a completely difference story, not covered here. Link to awesome-gbadev.
  • Describe the intersection of GBA and GB/GBC: GBA running on CGB mode (different colors, different registers init, APU quirks). Maybe @LIJI32 or @endrift can describe this briefly (or point me to some documentation describing GBA in CGB mode) ?
@avivace avivace added enhancement meta Changes on the structure list, general meta discussions labels Feb 19, 2020
@LIJI32
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LIJI32 commented Feb 26, 2020

Differences between CGB-E, which the AGB's CGB core is based on, and AGB include:

  • The removal of the IR port
  • The LCD's color space and grey curves are different
  • Audio mixing is done differently and is completely digital on the AGB; the AGB emulates the CGB's DACs as if they're always on
  • Channel 3's output is inverted on the AGB
  • Slightly different boot ROM, register B is 1 instead of 0 on start up. Timings are also different.

As far as I can tell, there are no other differences.

@avivace
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avivace commented Feb 27, 2020

Clear! Thank you. I'll leave this open for a while in case anyone wants to add something.

avivace added a commit that referenced this issue Feb 27, 2020
@avivace
GBAdev disambiguation (#164)
64bb43d
avivace added a commit that referenced this issue Mar 17, 2020
@avivace
Merge first improvements from the review (#168)
2b4c29f 
* List review (#159): Move down PyBoy to Emulator Development section

* List review (#160): Remove wiki, move devrs down to Websites. Improve link names.

* List review (#161): reorder, update Pan Docs link, specify historical relevance for the official manual.

* List review (#162): remove/move old links, move section to the bottom of the Documentation section

* GBAdev disambiguation (#164)
@avivace avivace closed this as completed Jul 8, 2021
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