https://www.subsim.com/radioroom/dow...o=file&id=2888
it says its for SH3, can do any executable (exe) file - let me re-phrase that - any executable file that was written to be LAA (Large Address Aware), which does include SH3 and SH4 exe files... There is also
NTCore 4GB Patch. All of them do the same thing, and just flip a couple of bits in the executable file's "header"...