Re: ProDos Versions

[Don Bruder <dakidd@sonic.net>]

In article <j2SNg.3077$rc3.569@trndny03>,
 "Bill Heckel" <wheckelny1@verizon.net> wrote:

> Hep me Hep Me     Understand.......
> 
> I know ProDos is an old Apple OS.
> But what are folks talking about when they say ProDos v1.0.1 &  v2.0.3   and 
> then talk about ProDos 8,
> I know that v1 & v2 are versions but what os PD8, is it a //GS OS ??
> 
> Spectrum Lord 
> 
> 

At some point (I forget exactly which version number - 2.1.x is coming 
to mind, but may be incorrect), ProDOS was "split" into "ProDOS 8", 
which would run on the 6502/65C02 based ("Pre-gs") Apples, as well as 
the "convertible" 65C816 chip the IIgs was built around.
"ProDOS 16" was capable of running *ONLY* on the 65C816 equipped Apple 
IIgs.

Prior that "split", you saw "ProDOS x.x.x" on the startup splash screen. 
After the split, you saw "ProDOS 8 Vx.x.x" when you fired up the 8-bit 
version. 

(The IIgs could/can run either ProDOS 8 or ProDOS 16, since its 65C816 
chip can be "converted" into a chip that, for practical purposes, is 
pretty much indistinguishable from a "plain" 6502/65C02 by setting a 
couple of processor flags - The 6502/65C02 machines can't run ProDOS 16 
because it uses machine-language instructions, addressing modes, and 
memory banking methods that simply don't exist in the 6502/65C02)

-- 
Don Bruder - dakidd@sonic.net - If your "From:" address isn't on my whitelist,
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