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Annotation of researchv10dc/dist/man/v3/man2/intr.2, revision 1.1.1.1

1.1       root        1: .pa 1
                      2: .he 'INTR (II)'3/15/72'INTR (II)'
                      3: .ti 0
                      4: NAME           intr  --  set interrupt handling
                      5: .sp
                      6: .ti 0
                      7: SYNOPSIS       sys intr; arg  / intr = 27.
                      8: .sp
                      9: .ti 0
                     10: DESCRIPTION    When arg___ is 0,
                     11: interrupts (ASCII DELETE) are ignored.
                     12: When arg___ is 1,
                     13: interrupts cause their normal result, that is, force an exit____.
                     14: When arg___ is a location within the program, control is
                     15: transferred to that location when an interrupt occurs.
                     16: .sp
                     17: After an interrupt is caught, it is possible to resume
                     18: execution by means of an rti___ instruction; however, great
                     19: care must be exercised, since
                     20: all I/O is terminated abruptly upon an interrupt.
                     21: In particular, reads of the typewriter tend to return
                     22: with 0 characters read, thus simulating an end of file.
                     23: .sp
                     24: .ti 0
                     25: SEE ALSO       quit(II)
                     26: .sp
                     27: .ti 0
                     28: DIAGNOSTICS    --
                     29: .sp
                     30: .ti 0
                     31: BUGS           --

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