On Tue, 22 Jan 2019 06:43:54 -0600 John Gateley <[email protected]> wrote:
:>The link information in the 24-bit addressing mode consists of the instruction-length code (ILC), the condition code (CC), the program-mask bits, and the rightmost 24 bits of the updated instruction address. :>I have never given much thought to the high byte when using this instruction and switched to BASR and BAS years ago. :>Just for personal interest, does anyone recall a program using the contents of the link register other than as a return address? It has been a while, but I recall something about CP using the condition code. -- Binyamin Dissen <[email protected]> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
