Re: Plus/4 C16 Questions

From: Andre Fachat (
Date: 2000-02-24 07:46:46

I would take the approach to peek() some special locations in the
ROM to determine the ROM/machine version. Then read the addresses
for the system variables from a basic DATA table


Marko Mäkelä wrote:

> On Wed, 23 Feb 2000, COPLIN, Nicholas. wrote:

> It's $ffba or $ffbd (the other is setnam).  A quick look at the C64 
> > Hence I would like to know if I'm on a C16 or Plus/4 so that I can
> > peek(lastdev) instead of peek(186).
> Okay, I assumed that you meant exclusive or, not inclusive or.  I don't
> know.  Have a look at the archived KERNAL ROM images on FUNET, and see if
> there is a byte in the $ff00 page that could be relied upon, or check
> e.g. one of the vectors at the $0300 page.  Neither method is reliable
> with modified ROMs, and the latter is less reliable, as the vectors can
> be changed e.g. by software-based fastloaders.
This message was sent through the cbm-hackers mailing list.
To unsubscribe: echo unsubscribe | mail

Archive generated by hypermail 2.1.1.