MEM (IV) 3/15/72 MEM (IV)





MEM (IV)                     3/15/72                     MEM (IV)





NAME            mem  --  core memory



DESCRIPTION     mem is a special file that is an image of the

                core memory of the computer.  It may be used, for

                example, to examine, and even to patch the system

                using the debugger.



                Mem is a byte-oriented file; its bytes are num-

                bered 0 to 65,535.



                If a non-existent memory location is referenced,

                the user suffers the resultant bus error.



                Memory referenced through the file is treated

                with movb instructions.  Certain device registers

                do not implement DATOB cycles to odd addresses.

                Other registers react strangely to this address-

                ing.



FILES           /dev/mem



SEE ALSO        --



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