[Simh] SET CPU 48M ?

[Thomas Pfau]

I don't recall having to do any SYSGEN changes to get the extra memory
recognized.  The system should use whatever physical memory is reported in
the RPB unless you limit it by setting PHYSICALPAGES smaller.  By default,
that parameter should be large enough that it should recognize all memory
on any system.

Villy Madsen wrote:
> I believe that you also have to manually increase the memory amount in
> sysgen....
>
> Villy
>
> ----- Original Message -----
> From: Thomas Pfau <pfau at nbpfaus.net>
> Date: Friday, February 1, 2008 9:23 am
> Subject: Re: [Simh] SET CPU 48M ?
> To: simh at trailing-edge.com
>
>>
>> Peter Moreton wrote:
>> > I have OpenVMS 7.1 booted with the default 16M of memory. Out
>> of interest,
>> > I added "SET CPU 48M" to the config file, and rebooted, and
>> $SHOW MEM
>> > still shows only 16Mbyte of memory available. Is there
>> anything else I
>> > need to do to get this extra memory available to VMS. (I tried
>> > AUTOGEN'ing, to no avail)
>>
>> I believe you have to load the alternate firmware file.
>> ka655.bin is the
>> original 3900 microcode that only supports 16M of memory.
>> ka655x.bin is
>> slightly modified to allow up to 64MB of memory.  It's all
>> spelled out
>> somewhere in the documentation.


-- 
tom_p
http://nbpfaus.net/