(I64 only.) The Write Context Block and Quadword PC Value routine
    writes invocation context block PC.

    Format

      LIB$I64_SET_PC   invo_context, pc_copy

1 - Returns

    OpenVMS usage:cond_value
    type:         longword (unsigned)
    access:       write only
    mechanism:    by value

2 - Arguments

 invo_context

    OpenVMS usage:invo_context_blk
    type:         structure
    access:       modify
    mechanism:    by reference

    Address of a valid invocation context block.

 pc_copy

    OpenVMS usage:PC value
    type:         quadword
    access:       read
    mechanism:    by reference

    Address of a quadword that contains the PC value to be written to
    the invocation context block.