Smooth scrolling

 BBS: Inland Empire Archive
Date: 07-17-92 (20:29)             Number: 133
From: MATT PRITCHARD @ 930/21      Refer#: NONE
  To: CORIDON HENSHAW               Recvd: NO  
Subj: Smooth scrolling               Conf: (2) Quik_Bas
MP> Just muck with the Horizontal Pixel Panning register: Attribute
MP> Controller registers, Index 13h.

CH>What's the OUTing address?  Index 13 of what?

        3C0 hex

        Junk = INP (&h03DA)        'Syncronize Flip/Flop
        OUT &h03C0, &h13
        OUT &h03C0, ScrollValue

Hope this helps..

-Matt P

 * SLMR 2.1a * Corporations Lie to Their Employees

--- InterPCB 1.50
 # Origin: CENTRAL BBS -Texas' BEST BBS! 214-393-7090 HST  3+GIGs (8:930/21)
 * Origin: Gateway System to/from RBBS-NET (RBBS-PC 1:10/8)
Outer Court
Echo Basic Postings

Books at Amazon:

Back to BASIC: The History, Corruption, and Future of the Language

Hackers: Heroes of the Computer Revolution (including Tiny BASIC)

Go to: The Story of the Math Majors, Bridge Players, Engineers, Chess Wizards, Scientists and Iconoclasts who were the Hero Programmers of the Software Revolution

The Advent of the Algorithm: The Idea that Rules the World

Moths in the Machine: The Power and Perils of Programming

Mastering Visual Basic .NET