Re: Apple IIe TCP-IP w/ LANceGS Card

[mjmahon@aol.com (Michael J. Mahon)]

Liam Busey suggested:

>Bill Garber <willy46pa@comcast.net> wrote in message
>X_KdnWBj_ICmX3yiRVn-gw@comcast.com">news:X_KdnWBj_ICmX3yiRVn-gw@comcast.com...
>>
>>: "copper wire" wrote:
>-snip-
>> : Depends what the products are.
>> : Are they hardware or software or both?
>> : Care to clue us in with more details?
>>
>> Honestly, I'm in the preliminary decision-making
>> part of several possibilities in how to go about
>> making the best economically sound hardware items
>> for the IIc, and alternate version of the same for
>> the slotted IIs. Primarily concerned with mass
>> storage devices for the II+, and unenhanced IIe,
>> although it seems that these are easier to work
>> up for the IIc and up.
>-snip-
>
>Hmm, hardrive for the ][+ and unenhanced file://e. I believe the only thing
>preventing the CFFA card from working on those machines is the lack of a
>65c02. Perhaps you could work with Richard Dreher and design a special 6502
>version of the firmware. The CFFA design is open so in additon to helping
>out 6502 Apple II users you'd become intimately familiar with the strengths
>and weaknesses of a working Apple II mass storage controller.

I agree completely.

As I recall, the CFFA is not "pressed" for firmware space, so it should
be trivial to restrict the set of opcodes used to those supported by the
6502.  I have never found it difficult to do without 65C02 features.

In fact, unless there are peculiar space or time limitations, the conversion
from 65C02 to 6502 code is quite straightforward, if not mechanical.

-michael

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