Microbotics's MBX1230xa have the "autoxa" utility to relocate the ROM in FastRAM. Simply toss the icon in the wbstartup drawer.
Or create a very early line in the startup-sequence.
If you go in trouble with the program, it signifies you had set the memory too fast in "setxa" (the program who save the board settings in the board's eeprom).
Example: if you have a 16Mb SIMM, 70ns, do not try to set it to 60ns!
