Search found 103 matches
- Fri Mar 14, 2014 8:39 pm
- Forum: General Topics
- Topic: Best looking 8bit computer?
- Replies: 72
- Views: 19573
Re: Best looking 8bit computer?
No doubt: http://myretrocomputing.altervista.org/commodorecbm8032sk/popup/8032sk.jpg Porche, you know... Common misconception. Not true. This case was designed by Ira Velinski while working at Commodore. Ira designed the Max Machine case as well. Porche did design a case but it was not workable. Co...
- Sat Nov 30, 2013 3:10 pm
- Forum: Hardware and Tech
- Topic: Why is the 40/80 col. display manager slowing the VIC?
- Replies: 34
- Views: 3069
Re: Why is the 40/80 col. display manager slowing the VIC?
This brings a more intricate question: Since the CPU runs slightly slower on an NTSC C64 than on the VIC-20, why would the VIC-20 with a display manager in 40 col. mode turn out to be slower than a C64 which also has to shuffle around 40 columns of 25 characters? (assuming both machines are NTSC) D...
- Fri Nov 29, 2013 9:21 pm
- Forum: Hardware and Tech
- Topic: Why is the 40/80 col. display manager slowing the VIC?
- Replies: 34
- Views: 3069
Re: Why is the 40/80 col. display manager slowing the VIC?
I have one of those, but I've never tested it speed-wise. The unit uses a 6545 or compatible video chip, which is the same as in the PET. If I recall, the video memory IS mapped into regular memory. That said, it's probably a simple case of more characters to scroll = longer time. You can see the di...
- Sun Apr 21, 2013 9:58 am
- Forum: Hardware and Tech
- Topic: Found some software for the DATA-20 display board
- Replies: 19
- Views: 4506
I think it was fairly common to swap around data or address lines to make routing the wires easier (or to confuse people). The computer doesn't care if D0 goes to D0 on the ROM or D5 or whatever as long as the data is written to the rom with the correct bits in the correct location it will read cor...
- Thu Apr 18, 2013 9:23 pm
- Forum: Hardware and Tech
- Topic: Found some software for the DATA-20 display board
- Replies: 19
- Views: 4506
- Tue Mar 26, 2013 8:11 am
- Forum: Buy, Sell, and Trade
- Topic: *SOLD OUT* 32k RAM expansions for the VIC-20 - 25$ each
- Replies: 60
- Views: 10543
I was hoping for a manual for the UE. Perhaps now that your run is finished you could also publish the schematics? ;-) Don't get me wrong, I like the UE and the rom option seems very handy and more flexible than I thought it would be. Without documentation those features are un-accessable. You can't...
- Mon Mar 25, 2013 9:15 pm
- Forum: Buy, Sell, and Trade
- Topic: *SOLD OUT* 32k RAM expansions for the VIC-20 - 25$ each
- Replies: 60
- Views: 10543
I got my expander and it's working great. I'm interested in perhaps adding BASIC4. I admit I'm a little rusty in VIC-20 technical details. Just to clarify does the expansion board accept EPROMS or regular ROMS? The pinout for ROMs or EPROMS is generally the same so your question only makes sense if...
- Mon Mar 25, 2013 12:13 pm
- Forum: Buy, Sell, and Trade
- Topic: *SOLD OUT* 32k RAM expansions for the VIC-20 - 25$ each
- Replies: 60
- Views: 10543
The 32k expansion also has a ROM socket to add extra ROM options such as VICMON, Programmer's Aid and Super Expander. I got my expander and it's working great. I'm interested in perhaps adding BASIC4. I admit I'm a little rusty in VIC-20 technical details. Just to clarify does the expansion board a...
- Tue Feb 12, 2013 3:21 pm
- Forum: General Topics
- Topic: CBMXfer 0.32 released
- Replies: 5
- Views: 716
- Tue Feb 12, 2013 10:14 am
- Forum: General Topics
- Topic: CBMXfer 0.32 released
- Replies: 5
- Views: 716
- Mon Feb 11, 2013 12:25 pm
- Forum: General Topics
- Topic: CBMXfer 0.32 released
- Replies: 5
- Views: 716
- Sat Feb 09, 2013 4:04 pm
- Forum: General Topics
- Topic: CBMXfer 0.32 released
- Replies: 5
- Views: 716
CBMXfer 0.32 released
Hi, I have released an updated CBMXfer, version 0.32 http://www.6502.org/users/sjgray/software/cbmxfer/cbmxfer.html New Features: Cleaner interface - moved some buttons to a dropdown menu Clearer top button mode indicators Better formatting options Improved Progress bar Prompting for unknown disk ty...
- Fri Dec 28, 2012 3:11 pm
- Forum: General Topics
- Topic: New retro computing site: neoncluster.com
- Replies: 6
- Views: 1082
- Sun Nov 04, 2012 10:00 pm
- Forum: General Topics
- Topic: Should the VIC have had a true successor over the C16?
- Replies: 9
- Views: 1592
- Fri Oct 26, 2012 8:31 am
- Forum: General Topics
- Topic: Should the VIC have had a true successor over the C16?
- Replies: 9
- Views: 1592
Re: Should the VIC have had a true successor over the C16?
Do you think a VIC-20 compatible machine should have been produced instead of the Commodore 16? I have read the VIC was nothing more than smoke and mirrors to throw the Japanese off the scent of what C= were really working on and hence prevent hardware piracy (unlikely given the complexity of VIC-I...