Todo/Mysteries: Difference between revisions

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* Loading time graphs for all CD games, is MESS reliable enough ?
* Loading time graphs for all CD games, is MESS reliable enough ?
* ROM data visualisations https://wiki.neogeodev.org/index.php?title=2020_Super_Baseball
* 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.
* YM2610 write delays ?
* Details on CD registers
* Details on CD registers
* CDDA playback (needs more research in CD bios)
* CDDA playback (needs more research in CD system rom)
* Dump LC98000 version Neo CD bios
* Dump LC98000 version Neo CD system rom
* [[LC8953]]/98000 microcode
* [[LC8953]]/98000 microcode (note: Sanyo tech support has nothing left except publicly available brief sheet)


==Verify==
==Verify==
* Check [[Clock]] distribution diagram, especially on cart edge.
* Check [[Clock]] distribution diagram, especially on cart edge.

Revision as of 12:13, 23 October 2016

Housekeeping

  • Rename GPU to VDC everywhere ? Or VDP ? LSPC isn't really a processor. Sorry :/
  • Rename BIOS to system ROM everywhere (done ?)
  • Use 3rd parameter of Sig template (signal polarity)
  • Use Chipname, Reg, Sig, BR templates
  • Tooltip extension for registers ?
  • Redirects from game stats to game pages
  • Add pin numbers on AES cartridge pinout.
  • How to start page

Useful

  • Add links to TCRF pages for the debug DIPs of each game ?
  • PCM logic: http://www.mvs-scans.com/images/7/76/Kof_10th_anniv_plus_bootleg1_b1_front.jpg
  • 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 from MAME's neogeo.inc
  • 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 / mysteries

  • Why does the L0 ROM need an output buffer ?
  • Loading time graphs for all CD games, is MESS reliable enough ?
  • ROM data visualisations https://wiki.neogeodev.org/index.php?title=2020_Super_Baseball
  • YM2610 write delays ?
  • Details on CD registers
  • CDDA playback (needs more research in CD system rom)
  • Dump LC98000 version Neo CD system rom
  • LC8953/98000 microcode (note: Sanyo tech support has nothing left except publicly available brief sheet)

Verify

  • Check Clock distribution diagram, especially on cart edge.
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