Re: Apple IIe TCP-IP w/ LANceGS Card

[Marsha <menacechgo@aol.com>]

[posted and mailed]

mjmahon@aol.com (Michael J. Mahon) wrote in
20031220012012.03823.00001381@mb-m07.aol.com:">news:20031220012012.03823.00001381@mb-m07.aol.com: 

> I don't think there would be much simplification, since one set of
> software is "firmware" and the other is driver software.
> 
> Except for religious reasons, they might just as well used a Z-80 for
> the card.

Except, some of the driver code in the ROM is code that appears in the slot 
for the motherboard to execute.

Looking at the code, there is liberal use of STZ and BRA... 
and while sometimes the programmer knows and/or doesn't care what the 
existing registry flags are, often they are significant and need to be 
preserved.

Considering the cost of the workstation card at the time, a drop in 
replacement 65C02 for the motherboard wouldn't have been that much of an 
investment.

Marsha