[Info-vax] Three boot camp sessions on YouTube

[Camiel Vanderhoeven]

Op vrijdag 7 oktober 2016 14:50:36 UTC+2 schreef John Reagan:
> On Friday, October 7, 2016 at 7:34:44 AM UTC-4, Neil Rieck wrote:
> > Hey, thanks for this. The Intro to x86 may convince some that x86 is not really that much different than AXP/IA64
> > 
> 
> Actually it is quite different.  Alpha/Itanium are load/store instruction sets.  All operations are performed on registers.  x86 (and VAX) has lots more addressing modes and allows operations to be performed directly on memory locations.  Fortunately for 99% of people, the compilers hide all of that from you.

Well, there are similarities and differences between x86 and all of the previous architectures:

x86 is a lot like VAX when you look at its instruction set
x86 is a lot like Alpha when you look at the virtual memory layout
x86 is a lot like IA-64 when you look at firmware, interrupt controllers, and NUMA properties

Very few concepts in x86 are brand new to us, some of the implementations are.

Camiel