On Mon, 7 May 2018 08:58:15 -0500, Tom Marchant <[email protected]> wrote:
>>Updating 32-bit programs to conform to >>AM64 requirements is far less onerous >>than the massive changes required to >>create a 64-bit application. > >No, it isn't. Why do you think it is? All references to "L" to load an address need to be changed to "LG". All A() constants need to be changed to AD(). Well, there is a way around that. You can instead do a SGR and then continue to use L. All save areas need to be changed to cope with the larger requirements. But even if it was easy, most applications don't need more than 4 GiB of memory, so it's best to keep them 32-bit as that is more compact. Would it help if I ask the author of REVIEW how much effort it would take him to produce a 64-bit version of his product so that datasets more than 4 GiB in size can be edited? That would certainly be nice. BFN. Paul. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
