Re: New XPL Instruction Manual at XyWWWeb

["Robert Holmgren" holmgren@xxxxxxxx]

** Reply to message from Russ Urquhart  on Tue, 24
Jan 2006 18:04:49 -0600


> I was wondering if XPL compared to 8086 Assembly
> Op Codes. (Which also makes me wonder if Xywrite could then EVER be
> ported to another architecture?)

1:1 to op codes? I don't understand what you mean. Any one of these functions
would involve quite a number of assembler instructions. The functions may seem
low level and irreducible from the standpoint of a word processor, but they're
not irreducible in assembler (quite a bit goes in to cursor left, or cursor
right). As for porting, it *has* been ported -- to OS/2, to Windows. Anyway,
it's all pointless theorizing: it isn't open source, there isn't any
incentive, the only person who can port it is the author, assembler is x86,
hardly anybody uses the word processor -- so where does this all go? Nowhere.
It would be unbelievably difficult to remove this from the DOS environment.
None of the variables would work anymore. VPC is a whole lot easier. Works
really well, too, I'm told by friends.

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Robert Holmgren
holmgren@xxxxxxxx
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