It is currently Wed Oct 18, 2017 2:21 am

All times are UTC - 7 hours





Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: NES-CNROM vs HVC-CNROM
PostPosted: Thu Aug 25, 2005 4:02 am 
Does the NES-CNROM board allow unmapping the CHR ROM from the PPU bus like the HVC-CNROM board reportedly does?


Top
  
 
 Post subject:
PostPosted: Thu Aug 25, 2005 8:28 am 
Offline
User avatar

Joined: Mon Sep 27, 2004 2:13 pm
Posts: 1667
Location: .ma.us
They are exactly identical, i.e. just a 74161. Unmapping the CHR ROM? Why would anyone do that? The '161 only uses D0 and 1 which we know simply select a CHR ROM page. If you wanted to, you could use another bit to control the CHR ROM.


Top
 Profile  
 
 Post subject:
PostPosted: Thu Aug 25, 2005 11:12 am 
Offline

Joined: Sun Sep 19, 2004 11:12 pm
Posts: 19093
Location: NE Indiana, USA (NTSC)
I think the AC is referring to this topic.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 7 hours


Who is online

Users browsing this forum: No registered users and 8 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group