Subject: [stella] 7800 development - one hangup..help? From: "Frank Palazzolo" <palazzol@xxxxxxxx> Date: Fri, 10 Aug 2001 00:16:54 -0400 |
Hello, One thing is keeping my 7800 signer program from working perfectly. Maybe someone whose familiar with the 68K assembly will be able to tell me what I'm missing. The hash as computed by the Atari ST program does something extra to hash[4], different from the hash algorithm in the console. Ahh..here is the hideous code, right at the end of the hash routine...it starts with the high byte of the hash at reg11 (I think)...and ends up modifying the hash[4] at T19974. Thanks, Frank P.S. I can probably work around the problem by trying all 256 possible hashes, but I'd rather fix it correctly if possible. move.b reg11,d0 ; 10071 00004E02 ø9øøNø add.b U71432,d0 ; D0071 00011708 ø9øøøø add.b U71433,d0 ; D0071 00011709 ø9øøøø add.b U71434,d0 ; D0071 0001170A ø9øøøø add.b U71435,d0 ; D0071 0001170B ø9øøøø add.b U71436,d0 ; D0071 0001170C ø9øøøø add.b U71437,d0 ; D0071 0001170D ø9øøøø add.b U71438,d0 ; D0071 0001170E ø9øøøø add.b U71439,d0 ; D0071 0001170F ø9øøøø add.b L5922,d0 ; D0071 00001722 ø9øøø" add.b L6048,d0 ; D0071 000017A0 ø9øøøø add.b T19011,d0 ; D0071 00004A43 ø9øøJC add.b U23380,d0 ; D0071 00005B54 ø9øø[T add.b U55893,d0 ; D0071 0000DA55 ø9øøøU add.b U61315,d0 ; D0071 0000EF83 ø9øøøø add.b U65599,d0 ; D0071 0001003F ø9øøø? add.b U67979,d0 ; D0071 0001098B ø9øøøø add.b T19974,d0 ; D0071 00004E06 ø9øøNø move.b d0,T19974 ; 11700 00004E06 øøøøNø - Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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