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Re: 80-column mode with Aztec C SYS files?

In article 
<e7f06024-737e-4dce-b59d-5f27577954df@j19g2000vbp.googlegroups.com>,
 datajerk <datajerk@gmail.com> wrote:

> I am using the MS-DOS Aztec cross-compilers to create PRODOS SYS 
> files for the //e.  My only problem so far is that I cannot figure 
> out how to get the program to run in 80-column mode.  PRODOS boots 
> into 80- column mode and presents me with a menu, but when I select 
> my program for execution it runs in 40-column mode.

I didn't know that ProDOS could boot into 80-column mode; I always 
thought the startup program had to do that. Here's my take on how a 
system program might initialize 80-columns, as suggested in the ProDOS 8 
Technical Reference Manual:

<http://home.roadrunner.com/~jbmatthews/a2/prosource.html>

-- 
John B. Matthews
trashgod at gmail dot com
<http://sites.google.com/site/drjohnbmatthews>