Maybe this is a bit of a religious war - but I have always disliked "LA Rx,integer" - for maintainability (and readability) I would much prefer "L Rx,=F'integer'.
-----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Bill Fairchild Sent: 19 July 2005 09:41 To: IBM-MAIN@BAMA.UA.EDU Subject: Re: Highly used programs: any better replacements out there? In a message dated 7/19/2005 7:29:12 A.M. Central Daylight Time, [EMAIL PROTECTED] writes: The code shown specifically used =H'5'. There is no case where that *specic* instruction could not have been written instead as an LA r,5. You are correct. You are still missing my point. Suppose the original instruction was LA Rx,4095 and for whatever reason the logic needs to be changed into LA Rx,4096. This instruction will not assemble. However, if the original instruction was LH Rx,=H'4095' then the half word literal can be patched from 4095 to 4096. In the former case no simple patch is possible. In the latter case a simple patch is possible. It is also possible that, for whatever reason, the logic of a LA Rx,5 needs to be changed so that the value being put into the register is 4096 instead of 5. Bill Fairchild ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
