Branch Relative handles an offset up to 4 GiB. Charles
-----Original Message----- From: IBM Mainframe Assembler List [mailto:[email protected]] On Behalf Of Seymour J Metz Sent: Tuesday, December 3, 2019 2:28 PM To: [email protected] Subject: Re: BASR to AMODE 64 > What does CSECT size have to do with base registers? It's no rocket science. The distance between an instruction and its target determines whether a relative instruction is possible. If the distance is too large then you need to access the target via a register.
