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hello i have a question
the rom from the game dr hello is a korean rom,can i put the game on a eprom and will the game play on a european master system?

Should do (as far as I'm aware) but the eprom will obviously need to be interfaced to the cartridge port in the correct way. Others on this forum have experience with building custom carts I believe.

Won't the game need to be hacked to add the "TMR SEGA" header at 0x7ff0? I just had a quick look with a hex editor and didn't find it in there, so I'm guessing it won't boot without a hack or bootloader.

Good point, didn't think of the BIOS checks.

thanks for the info,but how can i change the header?

segaroy wrote

thanks for the info,but how can i change the header?

I'm not sure how to build a correct header that'll have the right checksum -- I'm sure there are tools, but I haven't used them.

But I opened up Dr. Hello in a tile editor, and the end of the ROM is some sort of checkerboard pattern (alternating $55 and $AA starting at 0x7FC4), so it looks like you might be able to squeeze something in there, though maybe at the cost of graphic corruption. (Perhaps someone enterprising can find a way to reuse the earlier iterations of the pattern.)

BTW I really like this version of the game. In some ways I like it better than Dr. Mario!

Thanks for the help,the games is running(sry for the bad pic)
Also Woody Pop,Congo Bongo,Girls Garden and Circus Charlie are running,next project is nba on
a cart.If you like i can post some pictures.

Greetz Roy

Author	Message
segaroy Joined: 24 Mar 2012 Posts: 7 Location: Capelle aan den ijssel,Netherlands	dr hello Posted: Tue May 01, 2012 8:41 pm
	hello i have a question the rom from the game dr hello is a korean rom,can i put the game on a eprom and will the game play on a european master system?

PhilPotter Joined: 08 Nov 2011 Posts: 67 Location: United Kingdom	Posted: Tue May 01, 2012 10:16 pm
	Should do (as far as I'm aware) but the eprom will obviously need to be interfaced to the cartridge port in the correct way. Others on this forum have experience with building custom carts I believe.

goldenband Joined: 24 May 2010 Posts: 104 Location: New York	Posted: Wed May 02, 2012 12:31 am
	Won't the game need to be hacked to add the "TMR SEGA" header at 0x7ff0? I just had a quick look with a hex editor and didn't find it in there, so I'm guessing it won't boot without a hack or bootloader.

PhilPotter Joined: 08 Nov 2011 Posts: 67 Location: United Kingdom	Posted: Wed May 02, 2012 6:05 am
	Good point, didn't think of the BIOS checks.

segaroy Joined: 24 Mar 2012 Posts: 7 Location: Capelle aan den ijssel,Netherlands	Posted: Wed May 02, 2012 6:27 pm
	thanks for the info,but how can i change the header?

goldenband Joined: 24 May 2010 Posts: 104 Location: New York	Posted: Wed May 02, 2012 10:42 pm
	segaroy wrote thanks for the info,but how can i change the header? I'm not sure how to build a correct header that'll have the right checksum -- I'm sure there are tools, but I haven't used them. But I opened up Dr. Hello in a tile editor, and the end of the ROM is some sort of checkerboard pattern (alternating $55 and $AA starting at 0x7FC4), so it looks like you might be able to squeeze something in there, though maybe at the cost of graphic corruption. (Perhaps someone enterprising can find a way to reuse the earlier iterations of the pattern.) BTW I really like this version of the game. In some ways I like it better than Dr. Mario!

segaroy Joined: 24 Mar 2012 Posts: 7 Location: Capelle aan den ijssel,Netherlands	Posted: Fri Oct 05, 2012 10:05 pm
	Thanks for the help,the games is running(sry for the bad pic) Also Woody Pop,Congo Bongo,Girls Garden and Circus Charlie are running,next project is nba on a cart.If you like i can post some pictures. Greetz Roy

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