diff --git a/memmap.cpp b/memmap.cpp
index a0fe24e0..c19f7306 100644
--- a/memmap.cpp
+++ b/memmap.cpp
@@ -2532,6 +2532,9 @@ void CMemory::InitROM (void)
 	Map_Initialize();
 	CalculatedChecksum = 0;
 
+	// SRAM size
+	SRAMMask = SRAMSize ? ((1 << (SRAMSize + 3)) * 128) - 1 : 0;
+
 	if (HiROM)
     {
 		if (Settings.BS)
@@ -2662,9 +2665,6 @@ void CMemory::InitROM (void)
 		*p = 0;
 	}
 
-	// SRAM size
-	SRAMMask = SRAMSize ? ((1 << (SRAMSize + 3)) * 128) - 1 : 0;
-
 	// checksum
 	if (!isChecksumOK || ((uint32) CalculatedSize > (uint32) (((1 << (ROMSize - 7)) * 128) * 1024)))
 	{
@@ -2921,6 +2921,7 @@ void CMemory::map_index (uint32 bank_s, uint32 bank_e, uint32 addr_s, uint32 add
 	desc.select=(bank_s<<16 | addr_s) ^ (bank_e<<16 | addr_e) ^ 0xFFFFFF;
 	if (type==MAP_LOROM_SRAM || type==MAP_SA1RAM)
 	{
+puts("BBB");
 		desc.ptr=Memory.SRAM;
 		desc.disconnect=0x8000;
 		desc.len=Memory.SRAMMask+1;