MSX2 ROGO cartridge

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By mais1976

Master (172)

mais1976's picture

14-12-2011, 12:01

I found a modified MSX2 ROM for the rogo module on the DIY from Hans Otten.

http://gomsx.net/hansotten/index.php?page=msxdiy

I was wondering how to put this ROM image into my ROGO Cartidge?

I can't find any information how to do this

Is this possible?

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By Jipe

Paragon (1594)

Jipe's picture

14-12-2011, 12:29

first : programming a eprom with a eprom programmer

two : desold the old eprom

tree : resold the new eprom

By Sky_hawk

Champion (267)

Sky_hawk's picture

14-12-2011, 12:51

Jipe: what are improvements?

By Jipe

Paragon (1594)

Jipe's picture

14-12-2011, 12:59

i don't reminder , i get the rom by a contact in old time

i quickly check and found this add on

815f CD2F83 CALL 832FH
8162 AF XOR A
8163 3D DEC A
8164 FB EI
8165 C9 RET

many adress are shiffted

By Robosoft

Expert (108)

Robosoft's picture

14-12-2011, 15:46

The main reason for the new rom is the slot selection , the original rom runs only in slot 1, (the spectravideo 738 cartridgeslot)
The modified rom can run in sub-slots

By mais1976

Master (172)

mais1976's picture

14-12-2011, 15:55

Hmm, ok, i guess i've to find someone with an eprom programmer.

Btw, I'm not able to use the ROGO cartridge with my NMS 8245, it runs without any problem on my Sony HB 201P. Will the new ROM solve this problem?

By Jipe

Paragon (1594)

Jipe's picture

14-12-2011, 16:41

i trying with slot 1 with the old eprom and don't work on 8235 8280 A1-GT
yes the new rom solve it

By Robosoft

Expert (108)

Robosoft's picture

14-12-2011, 20:56

The slot selection routine in the original rom is hardcoded to primary slot 1, the slots in the msx 2 are expanded slots (1-0 ,1-1 etc).

That's why it runs on a HB201P (the cartridgeslot is primary slot 1) and not on a Philips NMS 82xx etc

My brother modified the original rom long log time and had it running from ram,but you can't use the cartridge with it Crying

Good luck with finding a programmer!

By NYYRIKKI

Enlighted (6016)

NYYRIKKI's picture

15-12-2011, 07:08

If you are interested I have made another version based on this modified version. Changes:
- ROM will now pass selftest correctly (if burned to EPROM without problems)
- ROGO does not autoboot, but can be started from BASIC with CALL ROGO command or by holding "R"-key down during boot.

Mail me if you are interested.

By NYYRIKKI

Enlighted (6016)

NYYRIKKI's picture

15-12-2011, 07:20

the original rom runs only in slot 1, (the spectravideo 738 cartridgeslot)
Actually SVI-738 cartridgeslot is MSX slot 2

By MSX4ever

Master (251)

MSX4ever's picture

15-12-2011, 07:22

Hello Nyyrikki,

Can you mail me also a version with the changes :


- ROM will now pass selftest correctly (if burned to EPROM without problems)
- ROGO does not autoboot, but can be started from BASIC with CALL ROGO command or by holding "R"-key down during boot.

Thanks,

MSX4ever

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