6502.org Forum Projects Code Documents Tools Forum
It is currently Mon May 20, 2024 11:36 am

View unanswered posts | View active topics


Board index » 6502.org Users Forum » Nostalgia

All times are UTC




Post new topic Reply to topic  Page 1 of 1
  [ 6 posts ] 
  Previous topic | Next topic 
Author Message
rlstrand
PostPosted: Sat Apr 02, 2016 5:30 pm 
Offline

Joined: Sat Apr 02, 2016 5:18 pm
Posts: 3
I have a tube of chips that came with a couple of AIM 65 computers. They are 24 pin wide body dips, my guess is some ROM, marked: (the @ is actually a copyright symbol)

R322N-12
7678
@ 85 ICD
USD5185-2L
@ ROCKWELL 8611

Any idea what they might be?
Top
 Profile  
Reply with quote  
Klaus2m5
PostPosted: Sun Apr 03, 2016 8:14 am 
Offline

Joined: Sat Jul 28, 2012 11:41 am
Posts: 442
Location: Wiesbaden, Germany
The AIM65 ROMs I know of were called R3222-R3226. The last two digits indicate the intended socket z22-z26.

z22-z23 = Monitor (E000-FFFF)
z24 = optional Assembler (D000-DFFF)
z25-z26 = optional Basic (B000-CFFF)

_________________
6502 sources on GitHub: https://github.com/Klaus2m5
Top
 Profile  
Reply with quote  
rlstrand
PostPosted: Wed Apr 06, 2016 4:28 am 
Offline

Joined: Sat Apr 02, 2016 5:18 pm
Posts: 3
Yes I have those ROMs. Just wondering what the unknown one is.
Top
 Profile  
Reply with quote  
BigEd
PostPosted: Wed Apr 06, 2016 7:49 am 
Offline
User avatar

Joined: Thu Dec 11, 2008 1:28 pm
Posts: 10802
Location: England
Hi ristrand, and welcome - could you dump the ROM and post it? Could be interesting, and could yield some clues.
Top
 Profile  
Reply with quote  
rlstrand
PostPosted: Thu Apr 14, 2016 1:32 am 
Offline

Joined: Sat Apr 02, 2016 5:18 pm
Posts: 3
I have had the rom copied. Will post soon. Only text we saw on a quick scan was ICD in a copyright notice near start of the rom. And something about a disk near the end.
Top
 Profile  
Reply with quote  
BigEd
PostPosted: Thu Apr 14, 2016 8:12 am 
Offline
User avatar

Joined: Thu Dec 11, 2008 1:28 pm
Posts: 10802
Location: England
Great - look forward to having a look at that!
Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 1 of 1
  [ 6 posts ] 

Board index » 6502.org Users Forum » Nostalgia

All times are UTC


Who is online

Users browsing this forum: No registered users and 1 guest

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:  
6502.org is an ongoing project by Mike Naberezny and contributors.