Assembly on a Apple IIc+

From: Sellam Ismail <foo_at_siconic.com>
Date: Fri Feb 7 17:31:00 2003

On Fri, 7 Feb 2003, Hans Franke wrote:

> > Any calls to position the cursor?
>
> $20-$23 Window size
> $24,25 Cursor

Not that just setting these addresses does not automatically move the
cursor. You must also call $FBC1, which calculates the base address of
the screen memory where the cursor is and updates the requisite zero page
addresses.

> After all RTFM ! THe manual did list all of this and more. including the
> Monitor ROM listing.

Ron, I have a copy of the DOS manual if you need it.

Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org

 * Old computing resources for business and academia at www.VintageTech.com *
Received on Fri Feb 07 2003 - 17:31:00 GMT

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:35:54 BST