Todo/Mysteries: Difference between revisions

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==Housekeeping==
==Housekeeping==
* Rename BIOS to system ROM everywhere
* Rename BIOS to system ROM everywhere
* Use BR (BIOS RAM) template for bios ram locations. Same for Reg template.
* Use BR (BIOS RAM) template for bios ram locations. Same for Reg and Sig template.
* Tooltip extension for registers ?
* Tooltip extension for registers ?
* Redirects from game stats to game pages
* Redirects from game stats to game pages

Revision as of 16:58, 20 December 2015

Housekeeping

  • Rename BIOS to system ROM everywhere
  • Use BR (BIOS RAM) template for bios ram locations. Same for Reg and Sig template.
  • Tooltip extension for registers ?
  • Redirects from game stats to game pages
  • Add pin numbers on AES cartridge pinout.
  • How to start page

Useful

  • Memory chip pinouts
  • Finish PRO chipset pinouts !
  • M1 and S1 ROM speeds
  • CD I/O ERROR 0001 0002 0003 ?
  • CRC32 of all known ROMs/ISOs
  • Jumper configs
  • Memory card stuff (format, banks...)
  • neo-mga on mv1a + PALs, neo-sdr and neo-dcr info
  • Chip functions for each kind of board (even discrete logic)

Trivia

  • CD-Z copy protection
  • CMC fix bankswitching: how/when is vram bank info sent to the cartridge?
  • Recent security chips info (SMA, PVC...)
  • Neo cd chip pinouts (not very useful)

Analysis

  • Loading time graphs for all CD games, is MESS reliable enough ?
  • ROM data visualisations https://wiki.neogeodev.org/index.php?title=2020_Super_Baseball
  • Details about Z80 ports ($0C, $C0...) see on first-gen MVS boards for discrete z80 i/o logic, YM2610 write delays.
  • Details on CD registers
  • CDDA playback (needs more research in cd bios)
  • Dump LC98000 version Neo cd bios
  • LC8953/98000 microcode

Verify

  • Check Clock distribution diagram, especially on cart edge.