Hi,
I have a common question or emark about the edgeconnector.
becouse al emulators 'have to' create their own hardware emulation, which is somewhere strange since on the real stuff its almost 'click and play', almost ...
So theoreticaly, a perpect edgeconnector emulation could solve a partly problem.
since with an 'open-edge-connector' the extra hardware Can and even Must be seen as standalone emulation which is connectable.
in that case some MGT profs and TRD profs or hell VideoFace profs can make the most perfect peripheral which SHOULD be connectable to all emulators that emulate the edgeconnector and data+adres bus behaviour at best.
the edge connector is made with that purpose, i supose.
periperals have their own ULA type off circuit i quess...
old post:
I have a common question or emark about the edgeconnector.
becouse al emulators 'have to' create their own hardware emulation, which is somewhere strange since on the real stuff its almost 'click and play', almost ...
So theoreticaly, a perpect edgeconnector emulation could solve a partly problem.
since with an 'open-edge-connector' the extra hardware Can and even Must be seen as standalone emulation which is connectable.
in that case some MGT profs and TRD profs or hell VideoFace profs can make the most perfect peripheral which SHOULD be connectable to all emulators that emulate the edgeconnector and data+adres bus behaviour at best.
the edge connector is made with that purpose, i supose.
periperals have their own ULA type off circuit i quess...
old post:
On 2005-08-08 16:17, Paul van der Laan wrote:
Come again..?
A couple of emulators already support Kempston, IF1, IF2, Currah, Multiface, Disciple etc.
Yup and i need at least 2 emulators for what you mention above.
I mean OPEN EdgeConnector EMULATION
this means that if some one copies VideoFace rom or what ever kind off rom plugged into the edge connector it just should work , hardware like.
If I plug in my DISiPLE it does not work until I started the SYS,
BUT...
I do that by entering non standard Speccy talk.
RUN boot or RUN 10000 resets the disciple to ACTIVE and it all works together.
Well, A good emulator will accept ANY device "plugged in",
The HARDWARE tells after a NM1 the CPU that the 25 connections are OCCUPIED and Speccie has to live with another ROM/RAM attached.
I guess its done with 'ROMCS' and 'IOREQ', and maybe sysvar 'noname' at 23728/9
This means the real Speccy does not KNOW the extra rom AT All. It just accepts the communication via the new device.
And it has to discover it only at reset/start
With this in mind you can realy build your emulator like a VellemanBoard,
And ALL the different ROM available now should Al work/be accepted by the emulator.
Some ROMs have their own edgconnector, like DISCiPLE and you can plug in MultiFACE OVER it, or IF1 with IF2 AND ZXprinter connected.
All via a next connector.
which of the hunderd emulators can do this???
In different following orders?
[ This Message was edited by: Crisis on 2005-08-08 17:55 ]