Atari800MacX and inverse characters

[Dopeyman06]

I was doing some editing of a basic program. This included typing inverse and lowercase letters.. When I LISTed the edited lines, they reverted back to normal characters and in capital letters.

 

Is this a bug or am I doing something wrong?

 

 

[Dopeyman06]

I think I might've found the culprit...  It's the Basic XL (v1.03) .car image. I dunno why it does that. If doesn't act like that with Basic XE (v4.1) or regular Basic (Revision C).

 

Anyone have any ideas why?

 

I'm using the latest version 6.0.0.

 

Edited February 13, 2021 by Dopeyman06

[+skr]

I can´t reproduce that. Where did you get your car image from?

I use this one: https://atariwiki.org/wiki/Wiki.jsp?page=Basic XL

[Dopeyman06]

On 2/13/2021 at 4:14 PM, skr said:

I can´t reproduce that. Where did you get your car image from?

I use this one: https://atariwiki.org/wiki/Wiki.jsp?page=Basic XL

 

I grabbed the .car copies of BasicXL and Basic XE from the link you supplied... Like I mentioned, Basic XL is changing the text back to regular text and also back to uppercase... Basic XE doesn't make any changes to my text...

 

But in both Basics, the first few spaces are deleted

 

 

 

 

Edited February 15, 2021 by Dopeyman06

[Dopeyman06]

[+skr]

Oh, that seems somehow related to the REM, with PRINT I don´t have that issue:

 

 

Calling @luckybuck to the rescue.

 

Edit: When using quote with REM, this happens:

 

[+skr]

Seems not to be an Emulatorproblem. I don´t have the original Cart, so I only can test with the OSS 5-in-1 from Panos: 

 

BASIC XE 4.0 is nearly fine (don´t know why it changes REM to Rem) :

[Dopeyman06]

Apparently I'm not the only one experiencing this "bug"(?) in both BasicXL and BasicXE ?‍♂️

 

Thank you @skr for replicating the problem!

 

[+skr]

3 hours ago, Dopeyman06 said:

Apparently I'm not the only one experiencing this "bug"(?) in both BasicXL and BasicXE ?‍♂️

 

Thank you @skr for replicating the problem!

 

@tf_hh mentioned to me, that changing from uppercase to lowercase (REM -> Rem) could be a measure of saving memory. As inverse characters have higher numbers, it could be, that removing the inversion might save a bit somewhere? As REM lines are not containing executable code, it might makes sense to me, to save some memory here. But actually I don´t know anything about memory usage of BASIC lines. Assuming that memory is an issue, it also makes sense to me, that REMs with quotes are not changed, as BASIC could think there is a string.

 

Maybe, people who know about how BASIC handles code internally can tell more about this.

[+tf_hh]

44 minutes ago, skr said:

@tf_hh mentioned to me, that changing from uppercase to lowercase (REM -> Rem) could be a measure of saving memory.

 

Not exactly, my assumption applies to the fact that spaces between "REM" and the text will be discarded. The change vom "REM" to "Rem" is standard in Basic XL, all statements will be LISTed with a first capital letter and the rest lowercase.