On Fri, Jan 16, 2015 at 11:16 AM, Anne & Lynn Wheeler <[email protected]> wrote: <snip>
> > ... snip ... > > ... this was pipelined so wasn't serialized ... so there has been > shrinking difference between popular cisc and risc for a couple decades. > http://en.wikipedia.org/wiki/Instruction_pipeline Yes. I remember some decades back reading that CISC was going to die due to RISC performing better with optimizing compilers. That both did and didn't come true. The hardware exposed ISA is dominated by CISC on the high end (RISC ISA chips that I know of are ARM, Sparc, and MIPS) but the hardware internally is more like RISC. Conceptually, a bit like what IBM did with the TIMI for the i systems. Except that TIMI, from what I've read, is actually compiled into native code on the first execution and is store in a "hidden" portion of the executable on disk. Said compiled code is "foot printed" and recompiled if the TIMI object is change or, sometimes, when maintenance is applied to the i system software. I found the concept fascinating. > > > > <snip> -- While a transcendent vocabulary is laudable, one must be eternally careful so that the calculated objective of communication does not become ensconced in obscurity. In other words, eschew obfuscation. 111,111,111 x 111,111,111 = 12,345,678,987,654,321 Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
