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yes it will be just amazing.
a boot screen with the Game name !
sure it's my next project but i must learn some think before.

do you think a multi phantasy star game is possible ?

Fukkokuban , PH2 , PH3 + Ph4 with a game screen selector

ok just some news. Now my cartridge works !! 3 game switched by reset ! ( Revenge OF Shinobi , Shadow Dancer & Shinobi III ). But my schema is différent , i will post it as soon as possible. Very thanks all for your help :D now i will make a custom covers ! Edit : here is the schéma : http://sega4ev...

ok i will test your shema thanks for help.
I have a 74LS90 you have a 74c23 i can make your schema ?

hi, just some news about my project. this day i have try to make the multigame cartridge with the Schéma. but when i launch it , it will start the second game directly.... when i press reset the second game restart... it's a schema error ? how can i swap another game ? my rom is a 4 mo rom with 1 ga...

if you can read the french look at my web site .
I think it's a good point for start,
here is the link : http://sega4ever.power-heberg.com/

as far as i remember you have in your topic that only the MBC1 working . You can get all the code in its current state here . You'll need the GNU binutils for SH and M68k to build it. Add whatever ROMs you want to roms.s , but there's no GUI yet so it'll only load the first ROM in the table. Known i...

yes but i don"t think it's playable with it .
Only mapper 1 roms can be launched with the 32x Gameboy emulator

uh ? you have a pokemon blue/red rom for Sega Genesis ?

Ok First thank you very munch for helping me hardware Man :D : but i have a little thing i don't understand : -I want to use an Eprom type 27c322 and for put this in the original PCB i must redirect A18 ( to B7) , A19 ( to B8 and to pin 12 exemple 1 ) and A20 ( to B9) but i also must use this pin fo...

it's impossible to rewrite game into an Original chip : the Maskrom is not rewritable look like a CD-R. But if you want you can use an Eprom 16bit or a Flash memory for remplacing the original maskrom. if you can read the french take this , it's a tutorial : for the modification with a 16 bit Eprom ...

Sorry, missed your answer. Didn't get your question, though. Pin 14 of 74LS90 should be connected with B27 of the cartridge slot. Hmm ok but if i put my thread is it ok ?: http://sega4ever.power-heberg.com/images/B27.jpg So Pin14 74LS90 to the B27 connector of the PCB I think there is no more diffé...

Shiru ?
could you help me ?

question :D do i need to redirect a thread: cartridge port to Multigame cartridge for the "reset" ? or i can adapt just a classical sega cartridge ( 40 or 42 pin maskrom) ? here is my first shéma but i have made nothing for the reset button ...: http://sega4ever.power-heberg.com/images/Sch%e9ma.jpg

i think i will make one without Sram for the beginning.
ok if i draw a shema you can talk me if it's correct ?

ok but for adapt an Eprom 27c322( for 32 MBit game 4x1Mo ) i already use A18, A19 and A20:



-A18 ---> cartridge B7
-A19 ---> cartridge B8
-A20 ---> pin5 74HCC00 ( for game with Sram ) or B9 cartridge