On Thu, 29 Nov 2012 04:29:25 -0800, Lloyd Fuller wrote: > >The latter can also run into issues in AMODE 64. The index register is always >32 bits, not 24, 31, or 64 depending upon AMODE. Waste the extra nano-second, >use the comma. It is meaningful. > I hadn't known that; I'm behind in my reading; thanks. Is it sign-extended, or unsigned?
(The worst case was the 6502, which ignored carries out of the low half of the address, at least sometimes.) -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
