You're right of course. Other systems count bits the other direction. You can make an argument for either approach.
- 0 as the high bit corresponds to how we generally represent binary integers, with the high order bit on the left. - 0 as the low bit gives you consistency across 8, 16, 32 and 64 bit operands, and makes the bit numbers correspond to powers of 2. Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Michael Oujesky Sent: Monday, April 18, 2022 2:15 PM To: [email protected] Subject: Re: Trying to understand SMF30_RAXFLAGS My reading of Principals of Operation indicates register documentation has bit 0 as the high order bit, not lower order bit. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
