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SRAM bug fixes

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This commit is contained in:
dborth 2008-09-04 22:42:33 +00:00
parent c69b4fc58f
commit 2c1af15a5b
1 changed files with 19 additions and 10 deletions
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29
source/ngc/sram.cpp
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@ -1,8 +1,10 @@
/**************************************************************************** /****************************************************************************
* Snes9x 1.50 * Snes9x 1.50
* *
* Nintendo Gamecube Port * Nintendo Wii/Gamecube Port
*
* crunchy2 April 2007-July 2007 * crunchy2 April 2007-July 2007
* Tantric September 2008
* *
* sram.cpp * sram.cpp
* *
@ -79,6 +81,11 @@ preparesavedata (int method)
memcpy (savebuffer + offset, Memory.SRAM, size); memcpy (savebuffer + offset, Memory.SRAM, size);
offset += size; offset += size;
} }
else
{
offset = 0;
WaitPrompt("No SRAM data to save!");
}
return offset; return offset;
} }
@ -89,7 +96,7 @@ preparesavedata (int method)
void void
decodesavedata (int method, int readsize) decodesavedata (int method, int readsize)
{ {
int offset; int offset = 0;
char sramsavecomment[32]; char sramsavecomment[32];
int size = Memory.SRAMSize ? (1 << (Memory.SRAMSize + 3)) * 128 : 0; int size = Memory.SRAMSize ? (1 << (Memory.SRAMSize + 3)) * 128 : 0;
@ -99,18 +106,20 @@ decodesavedata (int method, int readsize)
// memory card save // memory card save
if(method == METHOD_MC_SLOTA || method == METHOD_MC_SLOTB) if(method == METHOD_MC_SLOTA || method == METHOD_MC_SLOTB)
offset = sizeof (saveicon); offset = sizeof (saveicon); // skip save icon
// move to start of SRAM which is after the 512 byte header
else
offset = 512;
// Check for exportable format sram - it has the sram comment at the start // Check for sram comment
memcpy (sramsavecomment, savebuffer+offset, 32); memcpy (sramsavecomment, savebuffer+offset, 32);
// version 2.0.XX or 00x found! // version 0xx found!
if ( (strncmp (sramsavecomment, "Snes9x GX 2.0", 13) == 0) if ( (strncmp (sramsavecomment, "Snes9x GX 0", 11) == 0) )
|| (strncmp (sramsavecomment, "Snes9x GX 00", 12) == 0) )
{ {
// adjust offset
if(method == METHOD_MC_SLOTA && method == METHOD_MC_SLOTB)
offset = 512; // skip entire 512 byte header
else
offset += 64; // skip savecomments
// import the SRAM // import the SRAM
memcpy (Memory.SRAM, savebuffer + offset, size); memcpy (Memory.SRAM, savebuffer + offset, size);
} }