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Annotation of researchv10dc/dist/man/v4/man4/mem.4, revision 1.1.1.1

1.1       root        1: .th MEM IV 8/24/73
                      2: .sh NAME
                      3: mem  \*-  core memory
                      4: .sh DESCRIPTION
                      5: .it Mem
                      6: is a special file that is an image of the core memory
                      7: of the computer.
                      8: It may be used, for example, to examine,
                      9: and even to patch the system using the debugger.
                     10: .s3
                     11: A memory address is
                     12: an 18-bit quantity which
                     13: is used directly as a UNIBUS address.
                     14: References to non-existent locations cause errors to be returned.
                     15: .s3
                     16: Examining and patching device registers is likely
                     17: to lead to unexpected results when read-only or write-only
                     18: bits are present.
                     19: .sh FILES
                     20: /dev/mem
                     21: .sh BUGS
                     22: There should be another
                     23: .it mem
                     24: file that looks at core using the system's address map.

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