24 Oct
2018
24 Oct
'18
1:17 p.m.
On 10/24/2018 12:31 PM, Paul Koning wrote:
Well I can still run DOS BOX and get my nice 8086 instruction set.
On Oct 24, 2018, at 2:22 PM, ben via cctalk
<cctalk at classiccmp.org> wrote:
On 10/24/2018 11:57 AM, Al Kossow via cctalk wrote:
Single CPU, segmented memory? No. Multiple CPUs (8 or so in my laptop, many more in
servers). Flat 64 bit address space.
On 10/24/18 10:53 AM, ben via cctalk wrote:
Am I really, every thing is so backwards compatable with the classic
PC's I don't see much new other than what was hacked on. I have no idea what is in a modern home computer,
but I suspect
it still follows the same design of the IBM PC. Single CPU
with segmented memory and bit of DMA here and there.
Wow...
You are out of touch, aren't you. It's true that the original 8086 instruction set
lives on with all its warts, and many more added over the years. And yes, I guess that
you *can* run them in 32 bit segmented mode if you're crazy. But that's not how
they are actually used. The same applies to other successful architectures: MIPS, IBM
360. Or programming languages -- consider C for a particularly horrid example, or worse
yet C++.
All the computer science books push RISC now. EVEN KUTH has gone to the
DARK SIDE.
The point I was making and it got lost, for efficient programing the
programmer has to know some times the fine detail of cpu and memory.
With the way hardware keeps being revised often for more profit, nobody
knows the hardware any more.
Al is right. You might benefit from some more
studying of these subjects.
That may be true, but I can't change the market place for crappy
designs, since for
now I am locked into a windows OS. I use a free FPGA and PAL programing
software.
paul
70's computers are more interesting. That is why do we have PI computers
running PDP 8 emulators?
Ben,