English Amiga Board

Go Back   English Amiga Board > Coders > Coders. Asm / Hardware

Thread Tools
Old 22 March 2014, 16:05   #1

Asman's Avatar
Join Date: Sep 2005
Location: Somewhere
Posts: 735
mouse position $dff00a

Is it safe and legal to use construction like that:

move.b $dff00b,d0

move.b $dff00a,d0
More general question. Is it legal to read byte from read only custom chip register ?

Any ideas ?
Asman is offline  
Old 22 March 2014, 17:08   #2
Toni Wilen
WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 45
Posts: 24,198
Technically it will work because many programs (including KS ROM) does something like btst #something,<some custom register>.
Toni Wilen is online now  
Old 24 March 2014, 16:52   #3

Asman's Avatar
Join Date: Sep 2005
Location: Somewhere
Posts: 735
Thanks a lot.
Asman is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Remeber directory position plasmatron request.UAE Wishlist 4 07 October 2010 23:42
Saving your Game Position Ravenhook support.Games 8 26 May 2010 23:34
M1438S Horizontal Position ancalimon support.Hardware 11 16 December 2009 19:19
Saving position ? Another World support.Games 1 28 April 2007 01:32
CD-ROM icon position fc.studio support.Apps 4 21 December 2005 23:54

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +2. The time now is 13:49.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Page generated in 0.07582 seconds with 13 queries