Re: Proterm and the //E

[spec@vax2.concordia.ca (Mitchell Spector)]

In article wbaguhn@nyx10.cs.du.edu (Will Baguhn) writes...
>In article <4r0vhr$8d5@news.vanderbilt.edu>,
>John Lesher <lesherjt@vuse.vanderbilt.edu> wrote:
>>Is it possible, FROM SOFTWARE, to tell if the machine is enhanced with,
>>for example, the Video ROMs (Mousetext), and then have the program
>>adjust its output accordingly?
> 
>Well, you could switch into mousetext mode, draw an inverse uppercase A on
>the screen, and ask the user if they see a picture of an apple...

   From Applesoft BASIC, typing the following line will display all 
Mousetext characters (if you see an inversed character set instead, then 
the original Video ROM is obviously present). The system will function
fine regardless of which Video ROM is present, it is merely a cosmetic
difference to the user.

PRINT CHR$(4);"PR#3":INVERSE:PRINT CHR$(27);"@ABCDEFGHIJKLMNOPQRSTUV
WXYZ[\]^_"; NORMAL

(Be sure letters in quotes are UPPERCASE, otherwise it won't work.
Switching into 80 columns mode is also important, although I'm fairly
sure the above will do that. My Applesoft is a bit rusty so it may need 
a minor tweak ;)

Mitchell Spector
spec@vax2.concordia.ca