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Recent Updates

Qwertie’s SNES Documentation Plus DMA Revision 6

Hardware Info.

Description:

Contains essential information for experienced hackers. Covers topics such as joypads, DMA & HDMA transfer, sprites, and registers. Note though, there are inaccuracies.

  • Has “big-endian” and “little-endian” mixed up
  • OAM high-table bits are wrong
  • No information on the name selection bits.
  • $2115 bit 7 for writing words is backwards
  • BG priority map is only correct for Modes 0 and 1
  • Missing $213f effect on $213c/d
  • Multitap info for $4218-f is wrong
  • Incorrect info: “if a DMA transfer is initiated while a HDMA channel is enabled, nothing will happen.”
  • $43×0 bit 7 is not DMA only
  • … and probably more

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