Re: [Rpcemu] MDF query

In article <01ed4ff852.old_coaster@old_coaster.yahoo.co.uk>, Tony Moore
<old_coaster@yahoo.co.uk> wrote:
> On 3 Dec 2012, george greenfield <george.greenfield@tiscali.co.uk> wrote:


> Yes, I think that you're correct. I now seem to remember reading that
> the version of 4.02 on the 'virtually free' CD had been altered to
> recognise an extended BandWidth. Is that the source of your 4.02 ROM?

I'm currently using RO4.02 from the CD. But before that I was using 4.02
from one of my old RPCs to do initial experiments with RPCEmu. So far as I
recall, RO4.02 worked OK on RPCEmu with a vidc bandlimit value that I made
ten times bigger.

My understanding (wrt 4.02, anyway) is that the VIDC rate limit value is
simply specified in a file seen by the boot process. This is to block
attempts that might fry the old RPC *hardware*. If there is another limit
written into the 4.02 romset it is news to me. So far as I recall, when I
raised the matter wrt RPMEmu I was told that the bandwidth limit was
irrelevant to RPCEmu as there was no RPC 'hardware' that might be damaged.

In an equivalent way, I was pleased to learn about and use the higher
colour depths for large screenmodes, above what was possible on a standard
RPC.

The requirements for the relative timing values may be different. They may
be 'fussy' for some other reasons.

Slainte,

Jim

--
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