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change backup memory whitelist application technique and fix SM64 (KOR) which needs an 0.5KB eeprom apparently (based on its use of WRHI and RDHI commands)

This commit is contained in:
zeromus 2016-08-13 18:24:33 +00:00
parent 02a5944a20
commit 17b7ebfa88
1 changed files with 23 additions and 11 deletions
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34
desmume/src/mc.cpp
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@ -1,7 +1,7 @@
/*
Copyright (C) 2006 thoduv
Copyright (C) 2006-2007 Theo Berkau
Copyright (C) 2008-2015 DeSmuME team
Copyright (C) 2008-2016 DeSmuME team
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -618,6 +618,21 @@ void BackupDevice::reset()
ensure((u32)savesize); //expand properly if necessary
addr_size = addr_size_for_old_save_type(savetype);
}
//automatically detect these hardcodes
if(state == DETECTING)
{
if(!memcmp(gameInfo.header.gameCode,"ASMK", 4)) addr_size = 1; //super mario 64 ds (KOR, which is different somehow)
else if(!memcmp(gameInfo.header.gameCode,"ASM", 3)) addr_size = 2; //super mario 64 ds
else if(!memcmp(gameInfo.header.gameCode,"BDE", 3)) addr_size = 2; // Dementium II
else if(!memcmp(gameInfo.header.gameCode,"AL3", 3)) addr_size = 1; //spongebob atlantis squarepantis.
else if(!memcmp(gameInfo.header.gameCode,"AH5", 3)) addr_size = 1; //over the hedge
else if(!memcmp(gameInfo.header.gameCode,"AVH", 3)) addr_size = 1; //over the hedge - Hammy Goes Nuts!
else if(!memcmp(gameInfo.header.gameCode,"AQ3", 3)) addr_size = 1; //spider-man 3
//if we found a whitelist match, we dont need to run detection
if(addr_size) state = RUNNING;
}
}
void BackupDevice::close_rom()
@ -661,36 +676,33 @@ void BackupDevice::detect()
addr_size = 1; //choose 1 just to keep the busted savefile from growing too big
msgbox->error("Catastrophic error while autodetecting save type.\nIt will need to be specified manually\n");
break;
case 2:
//the modern typical case for small eeproms
addr_size = 1;
break;
case 3:
//another modern typical case..
//but unfortunately we select this case on accident sometimes when what it meant to do was present the archaic 1+2 case
//(the archaic 1+2 case is: specifying one address byte, and then reading the first two bytes, instead of the first one byte, as most other games would do.)
//so, we're gonna hack in checks for the games that are doing this
addr_size = 2;
// TODO: will study a deep, why this happens (wrong detect size)
if(!memcmp(gameInfo.header.gameCode,"AL3", 3)) addr_size = 1; //spongebob atlantis squarepantis.
if(!memcmp(gameInfo.header.gameCode,"AH5", 3)) addr_size = 1; //over the hedge
if(!memcmp(gameInfo.header.gameCode,"AVH", 3)) addr_size = 1; //over the hedge - Hammy Goes Nuts!
if(!memcmp(gameInfo.header.gameCode,"AQ3", 3)) addr_size = 1; //spider-man 3
break;
case 4:
//a modern typical case
addr_size = 3;
if(!memcmp(gameInfo.header.gameCode,"ASM", 3)) addr_size = 2; //super mario 64 ds
break;
default:
//the archaic case: write the address and then some modulo-4 number of bytes
//why modulo 4? who knows.
//SM64 (KOR) makes it here with autodetect_size=11 and nothing interesting in the buffer
addr_size = autodetect_size & 3;
if(!memcmp(gameInfo.header.gameCode,"BDE", 3)) addr_size = 2; // Dementium II
//SM64 (KOR) makes it here with autodetect_size=11 and nothing interesting in the buffer
//we whitelisted it earlier though
break;
}