Re: Xy4 problem

[Phil Smith phil@xxxxxxxx]

You're right. Yes, a nul appears as an 'a' in a file. And yes, MW = 0. Not
entirely sure I understand the connection between the two. I tried setting
MW = 1 and re-invoking, and got my 'a's again.

I get the 'a's also after loading a file.

I am running Xy4 version 4.011 in a DOS box under WIN95. When I "fire up"
Xy4 (same version; same distribution files, in fact) on my older machine,
under DOS version 6.0, I don't have the 'a's.

I take your meaning, about version 4.011 being buggy. I shall write TTG and
ask for an update. But, failing that, can you suggest a remedy?

>
> ** Reply to note from Phil Smith  Sun, 18 May 1997 08:49:42 -0400 (EDT)
>
> Three thoughts:
>
> 1) What's the value of VAriable MW? Try setting it to zero.
>
> 2) In Xy4, but not Xy3+, an empty window (or that portion of a window which
> displays empty space after the last line of a file) contains Ascii-0 characters
> (nulls) in screen column zero. You don't see them because they are 'empty' (look
> just like a space character). But they are really Ascii-0's. A few
> installations (like mine) load screen fonts that turn on some pixels
> (for example, I display a tiny word "NUL" for Ascii-0, and a tiny "255"
> for Ascii-255) in order to distinguish them from spaces (it's extremely
> revealing of the designer's intentions and techniques). In your case, maybe
> somehow an "a" is being substituted for the ordinary nul? You say this occurs
> when you "fire up" Xy4 -- but does it persist after you call a file? If not,
> that's certainly what the "problem" is. One way to test this hypothesis is to
> insert a three-byte Ascii-0 into text (Ctrl-Alt-keypad 0 in the factory
> keyboard), and see how it displays... Is it an "a"?
>
> 3) Xy4 v4.011 is buggy. Replace with v4.017.
>
>
>
>
> -----------
> Robert Holmgren
> holmgren@xxxxxxxx
> -----------
>
>