[Info-vax] OpenVMS I64 V8.1 "Evaluation Release"?

[Johnny Billquist]

On 2012-03-21 23.07, Fritz Wuehler wrote:
> Johnny Billquist<bqt at softjar.se>  wrote:
>
>> My god, I can hardly believe my eyes when I read this.
>>
>> Have none of you the slightest clue about the difference between virtual
>> address and physical address?
>
> Yeah me and Glenn at least.

I would have hoped people to be more technical savvy.

>> Even today, there is no CPU that can address 64 bit physical address
>> space.
>
> I don't think that's true. What about z/Arch? What about POWER?

z9 EC supports a maximum of 512 GB of physical memory. That is a long 
way from 64 bits...
z9 BC supports a maximum of 64 GB. Even less than the EC.

As for POWER, I assume you mean the PowerPC range of CPUs? You should 
really be more specific, since this differs for every implementation.
The e6500, which is the newest I know of, can address a maximum of 1 TB. 
That chip is not even in production yet, but anyway.
1 TB is 40 address pins, which is far from 64.

	Johnny