Re: Rounding to a 2G-byte boundary

Thu, 25 Jun 2015 15:46:13 -0700 

Add 1G twice?  (You did not insist on an elegant solution.....)

MKB

-----Original Message-----
From: IBM Mainframe Assembler List [mailto:[email protected]]
On Behalf Of Mark Boonie
Sent: 25 June 2015 23:01
To: [email protected]
Subject: Rounding to a 2G-byte boundary

I have macro that currently looks like this:

         MACRO ,
         RNDUP &REG,&BOUND
         AGHI  &REG,&BOUND-1
         RNDDOWN &REG,&BOUND
         MEND  ,

I was trying to update it to use the newer ALGFI instruction like this:

         MACRO ,
         RNDUP &REG,&BOUND
         ALGFI &REG,&BOUND-1
         RNDDOWN &REG,&BOUND
         MEND  ,

However, I can't specify the boundary as a symbol equated to 2G (e.g., 
SEGTBLRANGE EQU X'80000000') without getting an assembler error due to an 
overflow in an intermediate value.  Does anyone have any alternative ways 
to do this?  I really need the ability to handle 2G.  Thanks.

- mb
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