ShuriZma
/
desmume
mirror of https://github.com/TASEmulators/desmume.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

fix nand more

This commit is contained in:
zeromus 2015-03-28 20:26:47 +00:00
parent c325eac5e3
commit 6697c7c0db
1 changed files with 22 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
desmume/src/addons/slot1_retail_nand.cpp
View File

@ -46,6 +46,12 @@ private:
u32 mode;
u32 handle_save;
//current NAND read/write start position
//when this is changed, the read/write cursor will be reset to it
//when it is set to the same value, the read/write cursor will NOT be reset
//(this is since some value must necessarily come in on the protocol address, so the 'current save_start' is used as a special 'dont change' value
u32 save_start;
//current NAND read/write cursor
u32 save_adr;
@ -119,7 +125,11 @@ public:
//Nand Write Page
case 0x81:
mode = cmd;
save_adr = (addressFromProtocol & gameInfo.mask) - subAdr;
if(addressFromProtocol != save_start)
{
save_start = addressFromProtocol;
save_adr = (addressFromProtocol & gameInfo.mask) - subAdr;
}
handle_save = 1;
break;
@ -133,11 +143,16 @@ public:
MMU_new.backupDevice.flushBackup();
break;
//Start read mode
case 0xB7:
if (handle_save)
{
mode = cmd;
save_adr = (addressFromProtocol & gameInfo.mask) - subAdr;
if(addressFromProtocol != save_start)
{
save_start = addressFromProtocol;
save_adr = (addressFromProtocol & gameInfo.mask) - subAdr;
}
}
else
{
@ -147,6 +162,9 @@ public:
case 0xB2: //Set save position
mode = cmd;
save_start = addressFromProtocol;
//cursor resets regardless of whether save_start changed, that's what makes this special.
//the cursor could be reset to the beginning of the previous save_start region
save_adr = (addressFromProtocol & gameInfo.mask) - subAdr;
handle_save = 1;
break;
@ -268,7 +286,7 @@ public:
os->write32le(mode);
os->write32le(handle_save);
os->write32le(save_adr);
os->write32le((u32)0);
os->write32le(save_start);
os->write32le(subAdr);
}
@ -287,8 +305,7 @@ public:
is->read32le(&mode);
is->read32le(&handle_save);
is->read32le(&save_adr);
u32 junk;
is->read32le(&junk);
is->read32le(&save_start);
is->read32le(&subAdr);
}
}