Dumping/reverse engineering MSX models thread

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By Manuel

Ascended (19214)

Manuel's picture

22-11-2022, 23:29

These things are kind of open:
- the PPI/key_ghosting_sgc_protected tag
- check on PPI/code_kana_locks and PPI/graph_locks tag
- VDP I/O port mirroring
- serial number of the machine we're basing the config on (for reference)
- Z80 type or other IC's types when they're different from the pics on the MSX.org wiki
- ideally: an EPROM dump of the ROM chip

By sdsnatcher73

Prophet (3808)

sdsnatcher73's picture

23-11-2022, 05:41

Photos are here.

CAPS/KANA lock (led in the key)
Serial: 205243
CPU: DA780C-1
VDP: TMS9118NL
Engine: S3527

I will check ghosting on HB-10 and HB-11 (HB-10 also seems unconfirmed). HB-10 config mentions discrete PSG but it has S3527 so that config may need some recheck.

By Manuel

Ascended (19214)

Manuel's picture

23-11-2022, 10:51

Yes it does, thanks!

By theNestruo

Champion (398)

theNestruo's picture

24-11-2022, 21:46

The HB-11 firmware includes an easter egg (S+P or Y+P during boot), a hidden text "A Yellow Panther Production MCMLXXXV", and 7 alternative MSX-BASIC fonts (CALL FONT (n)).
See screenshots here: https://twitter.com/NestorSancho/status/1595864404381388801

By pakoto

Expert (71)

pakoto's picture

30-12-2022, 15:31

Hi. Dumped Sanyo PHC-28P using tinyslot and carnivore 2 to save it into dsk.

https://mega.nz/file/yVFDwLoK#Den0FeTWFdL_P9aBRZTlnw-T8ymdnG...

Please confirm is correctly dumped.

By gdx

Enlighted (5994)

gdx's picture

30-12-2022, 15:38

Is it a PHC-28P ES or GE ?

By mars2000you

Enlighted (6397)

mars2000you's picture

30-12-2022, 15:59

Same ROM as PHC-28S, so it can only be the PHC-28P (SP) - QWERTY without ñ key (but a £ key) as you can see in the wiki

By pakoto

Expert (71)

pakoto's picture

30-12-2022, 16:09

ES.
No Ñ.
:; instead ñ

By mars2000you

Enlighted (6397)

mars2000you's picture

30-12-2022, 16:07

I see a £ key on this picture:

Maybe you have a different version?

By pakoto

Expert (71)

pakoto's picture

30-12-2022, 16:10

Yes. Edited.

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