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Random: Did You Know About This Not-So-Subtle Nintendo Dig Hidden Inside 'Battle Mania'?

Time Extension about 2 months ago

All is fair in love and 16-bit wars.As we all know, there were a lot of shots fired between Sega and Nintendo in the '90s, as the two parties did battle for market share, with even some of its developers famously getting in on the act.The one we remember m …

Blank screen c64 ICs are all good, now what?

VCFed about 2 months ago

I am repairing a 250425 board that I have socketed all of the chips and confirmed through trying them in another working board that they are all good. The problem is a blank screen almost 100% of the time. On 2 or 3 occasions while probing around with an …
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PET 4032 replacement CRT (9 inch)

VCFed about 3 months ago

Hi everyone, new here! I have been into retro/vintage computers ever since they weren't retro/vintage I have quite a lot of the usual Commodores - 64s, Vic-20s, various peripherals, but one I didn't have was a PET. So one came up on eBay for reasonable mo …
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Pac-Man Lifesized Maze: Melbourne

Australian Retro Gamer about 4 months ago

Get dot-munching for real! What: Pac-Man Lifesized Date: 27-Mar-2024 Where / Venue: The District Docklands, 23 – 37, Shop CWF01/01a Level 1/29 Star Cres, Docklands VIC 3008, Melbourne, Victoria, Australia, 3008 Tickets: Child $12.00 / Adult $18.00 Wh …

VIC-20 clock problem

VCFed about 5 months ago

I have a VIC-20 that has bad sound. the 36874 and 36875 registers dont play sound at all and 36876 is not playing the correct frequencies. if you play every tone from 128 to 255 you notice that the scale starts over a few times. i have checked the clock i …
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New Releases • Pixel Perfect VGA ideas

Lemon64 about 6 months ago

Lowest possible lag: after a half a line start outputting the scan doubled VGA single.Use opamp+gpio as a flash A/D as the number of levels is low.Sampling the luma is easy, the lowest denominator is 1/32.Sampling chroma is harder as it's a free running 3 …

Commodore 16, 64, 128, VIC-20, PET • OT: C64, reset and irq implementation question

MISTerFPGA about 6 months ago

Hello,maybe this is a bit off topic for MiSTer, but maybe some experts on the C64 FPGA implementation may help me by finding an answer which is/was also of interest by the FPGA implementation of the great C64 core.I am currently working on an implementati …
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Other 8-bit Commodore computers • 2532 EPROM - VIC-1212 PROGRAMMER'S AID CARTRIDGE

Lemon64 about 6 months ago

I have a few blank VIC project cartridge boards that I want to use. I got the idea to replicate the VIC-1212 PROGRAMMER'S AID CARTRIDGE. I ordered the original off of ebay, and it arrived today. I immediately opened it up to see the board, connections, an …
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Help & Support • Vic ii chip revisions

Lemon64 about 6 months ago

I’m looking at a 250407 revision mobo and I have a 6567R Vic ii. Will this work in this board?Statistics: Posted by Miles_Prower2001 — Sat Nov 11, 2023 12:48 am — Replies 1 — Views 43 …
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General • Commodore STARTED The Online Era For Home Computers. Why Hasn't Anybody Acknowledged It?

Lemon64 about 6 months ago

I was responding to the Copy Parties thread and this came to mind as an afterthought, so I figured I'd repost that partially and re-edited here and expound on it because I don't think it's been discussed and is a vital aspect of home computer history...Wh …
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Scene • Font overriding: CHROUT() KERNAL function "stops working" after changing screen RAM address?

Lemon64 about 6 months ago

Hi,The CHROUT KERNAL function can be used to print a character to the screen.However, I find that if I change the VIC bank address at $DD00 (bits 0-1), or the "pointer to screen memory" field (bits 4-7) at $D018, CHROUT effectively stops working. Presumab …
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Help & Support • unique VIC bug, or known?

Lemon64 about 6 months ago

I've had this US breadbin that I converted to PAL a number of years ago, and then later added a VIC-II^2 switcher to it. In PAL configuration Shores of Reflection always had glitches during the opening horizontal bitmap scroll, but I never saw these glit …
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Help & Support • Breadbin no video signal

Lemon64 about 7 months ago

Got a breadbin 64 recently and I’m not getting any sort of video signal out of the monitor or rf. I’ve probed around the board and all seems well, primarily the Vic chip. The CPU seems okay, but all the ram gets real hot and the Sid gets hot too. I kn …
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Help & Support • Black screen only when test harness in cassette port ?

Lemon64 about 7 months ago

I was running a diagnostics cartridge (via Ultimate 2+) on one of my breadbins (250407 board) , but it boots to a black screen when the test harness is plugged into the tape port (there seems to be a video signal though)If I unplug the harness from the ta …
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Help & Support • C64 sending garbage data (wrong notes) to working SID ?

Lemon64 about 7 months ago

I have a breadbin C64 that's making every 6581 I try in it play out of tune. Tested with 3 different 6581s (all working in other C64s) and even an ARMSID.This is what happens with all of them (first Commando, then diagnostic cartridge sound test which s …
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Other 8-bit Commodore computers • Help with koola images on c128 with vice 3.5

Lemon64 about 7 months ago

I am getting back into retro-programming with vice 3.5. and emulating the Commodore 128. I am 59 years old and back in the day programmed in basic and machine language on apple, atari, and commodore 64. Have been using project one to generate koola image …

C64 needs VIC chip

VCFed about 7 months ago

Hi all, I have a couple of C64's in need of the VIC II 6567 chip. Since these are long boards, the VIC II 8582 would also work. I can find PAL versions, but not many NTSC. I checked out the KWARI replacement, but no info on yet on when they will begin on t …
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Help & Support • Advice on mostly dead C64 250425

Lemon64 about 7 months ago

Hi! I've recently got a breadbin that's not very well and have hit a bit of an impasse so would be grateful for some advice on how to proceed. I'll explain as best I can.It's a PAL Revision A 250425 longboard.Power supply (black wedge) voltages are good a …
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Supermarket • Wanted: 8500 CPU and VIC-II 8565

Lemon64 about 7 months ago

Looking to complete a 250469 build and searching for 8500 cpu and a VIC-II 8565.Anyone?Statistics: Posted by soundie — Thu Oct 19, 2023 7:38 pm — Replies 0 — Views 31 …
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Help & Support • VIC-II-dizer and RetroTink 5X?

Lemon64 about 7 months ago

Hi all.Would there be any one in here that knows if the VIC-II-dizer, https://www.tindie.com/prod... ... -ii-dizer/ works with RetroTink 5X?I noticed it in this video (C128), https://youtu.be/aT21nddvkL... It seems to have two …
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General • Is there a List of Software Released by Commodore?

Lemon64 about 7 months ago

I was thinking about all the software released by Commodore and wondered if there was a list or even an archive? I looked through my TOSEC zips, but they are incomplete.It would be interesting to browse through everything Commodore produced for their mach …
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Help & Support • Acquire VIC-II 6567 or Kawari?

Lemon64 about 7 months ago

Do any of these video chips exist that are known good from reputable sellers?I see the Kawari sites and the github has some recent activity but when will new batches of chips be created? Or what is the status on this project? Statistics: Posted by c64 …
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Help & Support • C64 Maintenance Questions

Lemon64 about 7 months ago

Hi, I just acquired an early model C64 and I'm seeking advice. From what I can gather it's an early Rainbow label 326298 Rev A motherboard. I'm an electronics tech by trade, though I've never worked on a C64 before. So far this unit appears to be in amazi …
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Help & Support • Question about LumaFix64 + Vic-II

Lemon64 about 7 months ago

Hello, I've been struggling to find a definitive answer on this:I've been interested in the LumaFix mod for my PAL breadbin 64, however it sports an R1 VIC which I recognize requires its big box as a heat sync.I'd imagine, with this being the case, I'd wa …
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Help & Support • CIA Replacement Review From Retro8bitshop . com

Lemon64 about 7 months ago

I’m not allowed apparently to post a review on their website, so I’m required to do it here. Some **** **** filled excuse about a Captcha Thing that never appears, isn’t being done correctly or whatever! Engineers need to have their heads banged tog …