Re: Vic wedge (RE: 1551 Test Demo)

From: William Levak (wlevak_at_cyberspace.org)
Date: 2000-05-26 06:19:32

On Thu, 25 May 2000, [ISO-8859-1] Marko Mäkelä wrote:

> Judging from the start address ($0401), the program is for the 3k expanded
> VIC-20.  Does it work with other combinations (unexpanded, 8k..24k)?
> 
> For now, the tool can be found at
> <URL:http://www.funet.fi/pub/cbm/vic20/utilities/3k/>.

I set all my start addresses to 1025 ($0401).  This makes it loadable on
any 8 bit Commodore computer.

The BASIC part checks where it is loaded and calculates the POKEs and
SYS accordingly.  The machine language part checks for the top of memory
and adjusts the code accordingly and then loads the actual wedge to the
top of BASIC memory.

In short, it works on any memory configuration.

Note: It does not check for valid device numbers.  It simply uses whatever
you give it.


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