hrydgard/ppsspp — pull request #5143 by raven02 (2014-01-19 15:17:49+00:00)
Title: PSP-2000/3000 : Attempt to set Main Memory as 62M

I think may be on real PSP-2000/3000, it is not exactly allocate full 64M though need more testing .It still works fine for HD Remaster game like MH3 HD (Thanks @daniel299)