Those are actually short for BitCOIN Deposit/Extract, and when used with undocumented operands, enable cryptocurrency on IBM Z.
...phsiii (/s in case it wasn't obvious!!!) -----Original Message----- From: IBM Mainframe Assembler List <ASSEMBLER-LIST@LISTSERV.UGA.EDU> On Behalf Of Keven Hall Sent: Friday, September 5, 2025 2:59 PM To: ASSEMBLER-LIST@LISTSERV.UGA.EDU Subject: BDEPG and BEXTG instructions ?Amongst the new instructions debuting for the z17, this particular pair (Bit Deposit/Extract) piqued my curiosity.