Found Undumped Vicmon version

History and Preservation Issues

Moderator: Moderators

Vic 20 Afficionado
Posts: 462
Joined: Mon Nov 21, 2005 6:41 pm

Found Undumped Vicmon version

Postby dragos » Thu Sep 29, 2016 7:15 am

So, a long time ago (6-7 years) a CCCC club member knew I like Vic stuff and gave me a homemade cart of Vicmon. It was labeled vicmon 2 and it sat in a tote until a week ago.

It is unlike the other dumps I have seen for Vicmon, check out the screenshots.

Anyone ever seen a version with COLOR??
0110 0110 0110 The number of the beast...

Vic 20 Newbie
Posts: 7
Joined: Thu Apr 28, 2011 10:18 am

Re: Found Undumped Vicmon version

Postby jbevren » Thu Sep 29, 2016 8:01 am

I did some initial looks at the monitor Dragos dumped and thought I'd post a few notes:

Code: Select all

vicmon3.1 @a000, 4096 bytes; no autostart
rom md5sum (without load address) f78eb0afe250f3316da1e83e8fee3873

a7e8 -> brk low
a7e9 -> brk high
 = a017

a7bb = commands :
Hex:    3a 3b 52 4d 47 58 4c 53 54 46 47 44 50 2c 41
Ascii:  :  ;  R  M  G  x  m  s  t  f  g  d  p  ,  a

a7ca : Command RTS vectors:
command addr    data
[init]  a000
[BRK]   a017
[prompt] a044
:       a14d    4c a1
;       a140    3f a1
R       a0de    dd a0
M       a107    06 a1
G       a161    60 a1
X       a188    87 a1
L       a1ea    e9 a1
S       a1fe    fd a1
T       a341    40 a3
F       a395    94 a3
H       a3c3    c2 a3
D       a436    35 a4
P       a55e    5d a5
,       a436    35 a4
A       a55e    5d a5

The table is supported commands followed by their routines' addresses. A neat feature of this monitor is that it color codes its output, making it easier to read.

ultimate expander
Posts: 4540
Joined: Fri Jun 23, 2006 7:50 pm
Location: Canada
Occupation: 8bit addict

Re: Found Undumped Vicmon version

Postby eslapion » Thu Sep 29, 2016 11:26 am

I suggest you send this to Bo Zimmerman. His online archive is pretty much where everyone looks first when searching for dumped cartridges.
No one can do everything. Everyone can do something.

Return to “Collecting and History”

Who is online

Users browsing this forum: No registered users and 2 guests