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Need help making my nes roms the right size to burn on a epr
Posted: Fri May 15, 2009 11:22 am
by gamedude
California Raisins - The Grape Escape when I remove the header from the rom in properties says it is still 128 KB size (131,077 bytes) size on disk says 132 KB (135,168 bytes) is their still something else I have to remove
or is this the right size because
http://nintendoallstars.w.interia.pl/romlab/prepare.htm at the bottom of the page it says that a 128kb should be 131072 any help would be great

Posted: Fri May 15, 2009 11:39 am
by tepples
131077 means there are five extra bytes somewhere. How many bytes were there before you removed the header, and how many bytes of header did you remove?
Posted: Fri May 15, 2009 12:02 pm
by gamedude
128 KB (131,088 bytes) I removed the first 16 bytes
4E45531A08002100000000 NES...!....
Posted: Fri May 15, 2009 12:14 pm
by tepples
Your hex editor appears to have been set up so that the first row is only 11 bytes. Do the next four rows start at positions 00000B, 000016, 000021, and 00002C?
Posted: Fri May 15, 2009 12:21 pm
by gamedude
yes the next 4 rolls say 00000b 000016 000021 00002c

Posted: Fri May 15, 2009 3:56 pm
by tepples
Then you only deleted the 11 bytes in the first row. You need to delete five more bytes from the beginning of the file.
Posted: Fri May 15, 2009 7:54 pm
by gamedude
got it to work changed the settings on my hex editor burned it to a eprom and it works but some of the levels are scrambled anybody got any ideals
Posted: Fri May 15, 2009 7:56 pm
by coinheaven
use cajones to split your file...nice and easy
Posted: Sat May 16, 2009 3:18 am
by Memblers
gamedude wrote:got it to work changed the settings on my hex editor burned it to a eprom and it works but some of the levels are scrambled anybody got any ideals
Check the board's mirroring. What it calls H and V is the opposite of what the header names it.
Posted: Sat May 16, 2009 6:17 pm
by gamedude
works great now another on to add to my collection