Obviously it's for little-Endian 24-bit addressing mode! On Wed, Jul 24, 2019 at 3:18 PM Tony Harminc <[email protected]> wrote:
> On Wed, 24 Jul 2019 at 08:35, Vernooij, Kees (ITOP NM) - KLM < > [email protected]> wrote: > > > I cannot answer your question, it is probably depending on how the > > hardware works on different machines. > > > > Another question: what is the purpose of this instruction? > > > I think that's what the OP was asking. > > Is it executed that often that it is worthwhile to make an instruction to > > replace 2 instructions (Load+AND, MOVE+AND) or is there another reason? > > > > In fact there is an earlier Load and AND instruction LAN/LANG that can do > just the same thing in one instruction, though it also sets the condition > code based on the result, and requires full or double word alignment, which > LZRF/LZRG do not. > > Paging Dan Greiner... > > Tony H. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > -- zMan -- "I've got a mainframe and I'm not afraid to use it" ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
