How would you branch to code above the 2GB bar, since none is allowed there? The obvious problem being how you would even get it loaded up there. If I recall, the fundamental problem is that the PSW cannot be saved with an address greater than 31-bit for the next instruction since neither the TCB's or RB's have a large enough area to store it.
>I have a vague memory of reading, here or on the assembler mailing list, >that you would need to run disabled if you wanted to branch to code >located above the bar. I also have a vague memory that the Wrath of >God would probably fall on you anyway if you tried it, disabled or not. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
