Todo/Mysteries: Difference between revisions
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* Neo cd chip pinouts (not very useful) | * Neo cd chip pinouts (not very useful) | ||
==Analysis== | ==Analysis / mysteries== | ||
* Why does the L0 ROM need an output buffer ? | |||
* Can SFIX and the cart's S1 fight on FIXD0~7 on 1-slot boards ? Multi-slots gate FIXD0~7 from cart before SFIX and NEO-B1 bus. | * Can SFIX and the cart's S1 fight on FIXD0~7 on 1-slot boards ? Multi-slots gate FIXD0~7 from cart before SFIX and NEO-B1 bus. | ||
* Loading time graphs for all CD games, is MESS reliable enough ? | * Loading time graphs for all CD games, is MESS reliable enough ? | ||
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* Details about Z80 ports ($0C, $C0...) see on first-gen MVS boards for discrete z80 i/o logic, YM2610 write delays. | * 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 | * Details on CD registers | ||
* CDDA playback (needs more research in | * CDDA playback (needs more research in CD bios) | ||
* Dump LC98000 version Neo | * Dump LC98000 version Neo CD bios | ||
* [[LC8953]]/98000 microcode | * [[LC8953]]/98000 microcode | ||
==Verify== | ==Verify== | ||
* Check [[Clock]] distribution diagram, especially on cart edge. | * Check [[Clock]] distribution diagram, especially on cart edge. | ||
Revision as of 21:10, 27 February 2016
Housekeeping
- Rename BIOS to system ROM everywhere (done ?)
- Use Chipname template
- Use Reg template
- Use Sig template
- Use BR (BIOS RAM) template for bios ram locations.
- Tooltip extension for registers ?
- Redirects from game stats to game pages
- Add pin numbers on AES cartridge pinout.
- How to start page
Useful
- 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
- 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 ?
- Can SFIX and the cart's S1 fight on FIXD0~7 on 1-slot boards ? Multi-slots gate FIXD0~7 from cart before SFIX and NEO-B1 bus.
- 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.