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PostPosted: Tue Aug 20, 2013 11:17 pm 
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Joined: Fri Aug 31, 2012 1:02 am
Posts: 3
Hello!
Please can you help me figure out how can i double up the size of this game in order to burn in on a 27C160?
The game size's about 64Kb (it's the Super Mario Bros Maitrus 2010 version) but i only have 1MB 27C160 eproms..

I usually do that with snes carts among with Lunar Expand.
I have tryed the same with this genesis game but it wont work..

Weird thing is that i have tryed first on mine emulator, correct the checksum, and the game was working fine..

Bad thing is that i have 40-42 pin eeprom with that size (64Kb, 128Kb,512Kb) but the pinout of these are totally messed up compared to the mask roms, they also miss pins like A18/A19 wich i think they are necessary.

How can i fill up this rom?
I got a willem programmer

Thank you for your help!
Manuele


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PostPosted: Wed Aug 21, 2013 7:11 am 
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Joined: Sun Sep 19, 2004 11:12 pm
Posts: 19122
Location: NE Indiana, USA (NTSC)
Is it linear and headerless (.bin or .gen) or interleaved and with a copier header (.smd)? If headerless, you can just go to Command Prompt and
Code:
copy /b file.gen+file.gen bigger.gen


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PostPosted: Wed Aug 21, 2013 8:31 am 
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Joined: Wed Feb 13, 2008 9:10 am
Posts: 578
Location: Estonia, Rapla city (50 and 60Hz compatible :P)
No MD game relies on mirroring, you can only program the first bit of the chip with the ROM and it will work. There's no need to double+ the image size (unless your burning tool is kinda limited)

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