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SubjectRe: Hitachi Encryption Reply to this message
Posted bysmf
Posted on09/11/04 03:19 AM



Yeah it is odd that they left in opcodes which could so easily be used to decrypt the rom contents. The "state" problem is weird, mame emulates some system16 games because there were encrypted bootlegs. None of them have anything like this though.

I do wonder if it's a timing/voltage/whatever issue & not related to the encryption at all.

smf




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Entire Thread
Subject  Posted byPosted On
*Hitachi Encryption  finaldave08/26/04 09:35 AM
..Re: Hitachi Encryption  smf09/11/04 03:19 AM
..*Re: Hitachi Encryption  finaldave09/11/04 06:03 PM
...*Re: Hitachi Encryption  smf09/13/04 11:43 AM
...*Re: Hitachi Encryption  R. Belmont09/11/04 11:32 PM
....*Re: Hitachi Encryption  finaldave09/15/04 08:00 PM
.....*cmpi.l #$0091ffff,d0  finaldave09/17/04 07:47 AM
......*Screenshots!  finaldave09/20/04 08:19 AM
.......*Re: Screenshots!  smf09/21/04 02:54 AM
........*Re: Screenshots!  finaldave09/22/04 11:09 AM
.........*Re: Screenshots!  R. Belmont09/28/04 01:50 PM
..........*Re: Screenshots!  Barry Rodewald09/28/04 06:59 PM
...........*Re: Screenshots!  smf09/30/04 01:44 AM