Re: [cc65-devel] Binary loads of overlays on various targets

[Shawn J. <sje...@sh...>]

The overlaydemo.c and multidemo.c load overlays with open/read.  These would
use CIO/SIO on the Atari which by default is "fast".  You also don't need to
have any load address in the file, and if you did, you'd have to write code
to handle it yourself.

 

 

  _____  

From: Payton Byrd [mailto:pl...@gm...] 
Sent: Friday, May 24, 2013 7:15 PM
To: cc65 Development
Subject: [cc65-devel] Binary loads of overlays on various targets

 

I'm writing a large project that uses overlays and also targets multiple
platforms (C64, C128, A2, Atari).  I already know that the best way to load
the overlays on the two Commodores is through the CBM_LOAD command which
will allow fast-loaders to load the files.  What is the best way to
accomplish this on the Apple and Atari platforms?  I know I could fread the
data to memory, but I'm not sure if that's the right thing to do.  

 

As an aside, I have a question concerning overlay files on the Apple and
Atari platforms.  Do I need to include a load address at the beginning of
the files?  I'm assuming I do, but don't want to go off the reservation to
exclude them unless necessary.

 

Thanks!


 

-- 
Payton Byrd
<http://www.paytonbyrd.com>
<http://it.toolbox.com/blogs/paytonbyrd>