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Annotation of 41BSD/lib/libpc/SETRACE.s, revision 1.1

1.1     ! root        1: # Copyright (c) 1979 Regents of the University of California
        !             2: #
        !             3: # sccsid[] = "@(#)SETRACE.s 1.1 10/29/80";
        !             4: #
        !             5: # set trace bit in return frame of calling routine
        !             6: # this will cause core dump at point of return
        !             7: # unless running a debugger, in which case a breakpoint
        !             8: # will occur at the error point
        !             9: #
        !            10:        .globl  _SETRACE
        !            11: _SETRACE:
        !            12:        .word   0
        !            13:        movl    FP(fp),r0       #r0 has ptr to callers frame
        !            14:        bisl2   $0x10,PSW(r0)   #set trace bit
        !            15:        ret

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