PSXAddress v1.01 plus source, a (very) simple PSX addressing tool
  By Klarth (stevemonaco@hotmail.com)
  July 15, 2005
  Insomniac Translations
  http://rpgd.emulationworld.com/klarth/
  
1. Overview

     It's a simple app for Windows.  I thought that PS-EXE base loading offsets varied, but
     it appears that they don't.  Same for ePSXe savestates with the MEM loading position.
     Nevertheless, it has autodetection functions anyways.
     For the ePSXe savestate detection function, the savestate must be gzip'd (as it is
     originally) or you'll get a little memory error MessageBox.
     
     It does ePSXe Savestate <-> RAM address conversion along with PS-EXE <-> RAM conversion.
     Not too much else that I can think of for PSX.