Not to sure if this will help, but you can force a fortran common to a specific virtual address at link time by passing ld some commands: g77 <usual stuff > -Wl,--defsym -Wl,global01_=0x40200000 with this you know that "COMMON / GLOBAL01 /" will be in a fixed location. i have used this in the past to map fortran common to shared memory using shmat to a fixed address. you can probably force anything to be anywhere with ld commands, but I have no clue on the details :) regards, bud davis
