Um yeah... for approximately 21 years. sas
On Wed, Jan 19, 2022 at 1:45 PM Dave Clark <[email protected]> wrote: > "IBM Mainframe Assembler List" <[email protected]> wrote on > 01/19/2022 01:00:07 PM: > > I'd suggest you clear the high-order word of R2 then use CVDG. > > > > Would that work for you? > > OK, that brings up a question that I have not had to address > before this. Up till now I've used odd-even register pairs for 64-bit > operations. But I'm given to understand that all general registers are > actually 64-bit now instead of the traditional 32-bit. Is that correct? > So, 32-bit instructions just use the low order 32 bits of the general > purpose register and 64-bit instructions automatically use the full > register -- with no register "pairs" involved. Is that correct? > > Sincerely, > > Dave Clark > >
