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[BS-X] Avoid updating the memory map when it is not needed

This commit is contained in:
LuigiBlood 2017-12-16 17:21:00 +01:00
parent f17e66fc62
commit 54d7fe404d
1 changed files with 11 additions and 2 deletions
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13
bsx.cpp
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@ -741,9 +741,18 @@ void S9xSetBSX (uint8 byte, uint32 address)
// MMC
if ((bank >= 0x01 && bank <= 0x0E))
{
BSX.MMC[bank] = byte;
if (bank == 0x0E)
//Avoid updating the memory map when it is not needed
if (bank == 0x0E && BSX.dirty)
{
BSX_Map();
BSX.dirty = FALSE;
}
else if (bank != 0x0E && BSX.MMC[bank] != byte)
{
BSX.dirty = TRUE;
}
BSX.MMC[bank] = byte;
}
// Flash IO