Needed modifications to NMS8250 SUB-ROM:

#0422: 8C,3E
#3E8C: CD, 3C, 06, DB, AA, E6, F0, F6, 03, D3, AA, DB, A9, E6, 20, C8, AF, 32, E8, FF, C9

Functionality:
While boot logo is displayed, push "H"-key down untill beep to start in 50Hz mode, otherways 60Hz mode will be selected.

If you want to change also boot logo to 60Hz, put 0 to #2B56

Quote:

Super-X also has a nice english manual

Yes, BIG thanx to you!

Last week I recieved the modified rom from JP. Yesterday I plugged it into my 8250 and....
it works perfectly!
I can recommend this (the code from NYYRIKKI is somewhere in this forum-thread) to everyone who wants to play his (original ;-) roms on 60Hz!

Thank you very much for your time, NYYRIKKI and JPGrobler!

A very happy MSX user!

Good to hear, note that this patch is anyway only for 8250.

And is there any possibility that more people can obtain this modified rom??? uche uche like me uche uche....

I posted it here before that I also like to play my original roms from Konami instead of cracked version but the 50hz mode is stopping me from doing it...

Mail me.

If you want it on a eprom it is about 8 euro, postage included to The Netherlands. ONLY IF YOU OWN A MSX

j p g r o b l e r @ h o t m a i l < d o t > c o m