I think I got 0 in the first byte after BAL Thanks got a reply for my C 
compiler issue will forward 



Joe Reichman
170-10 73 rd ave 
Fresh meadows NY 11366

> On Aug 29, 2019, at 12:54 PM, Seymour J Metz <sme...@gmu.edu> wrote:
> 
> No, that means that for 24-bit mode, bits 32-33 are 01 after BALR and 10 
> after BAL, per p. 6-7; the ILC is not stored for 31-bit and 64-bit modes.
> 
> 
> --
> Shmuel (Seymour J.) Metz
> http://mason.gmu.edu/~smetz3
> 
> 
> ________________________________________
> From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of 
> Joseph Reichman <reichman...@gmail.com>
> Sent: Thursday, August 29, 2019 10:47 AM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: ILC of BAL, BALR
> 
> Does this mean
> 
> 
> 
> That BALR is length code 1 and BAL is  2
> 
> 
> 
> And for BALR bit 32 is on BAL bit 33 is on
> 
> Thanks
> 
> 
> 
> 
> 
> ---T--T-----T---------------------┐
> 
> │IL│ │Prog │ │
> 
> │C │CC│Mask │ Instruction Address │
> 
> L--+--+-----+----------------------
> 
> 32 34 36 4 63
> 
> The instruction-length code is 1 or 2.
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
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