There are also situations in which one wants to be able to set more than one of the diagnostic bits in a return code additively and unambiguously, and the alternative use of 0, 2, 4, 8, 16, . . . , i.e., the sequence 2^i, i = 0, 1, 2, . . . , powers of 2, permits this to be done.
Still, the fact that successive branch-table addresses always differed by four bytes in probably explains the 4i, i = 0, 1, 2, . . . convention best. Now, of course, we need 8i, i= 0, 1, . . . , i.e., 0, 8, 16, 24, . . . John Gilmore, Ashland, MA 01721 - USA ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
