Search found 75 matches

by aeb
Sat Feb 17, 2018 11:38 am
Forum: Games
Topic: WIP: Manic Miner port
Replies: 96
Views: 83904

Re: WIP: Manic Miner port

Very nice! Better than original. Maybe try call the voice frequency adjust routine 2-16 times more often (set up a timer interrupt) to make the tones stable - it would steal only a few dozen cycles :) (If you need stable raster waits, you can always 1) wait for the previous line 2) then temporarily ...
by aeb
Sat Jan 20, 2018 7:03 am
Forum: Programming
Topic: Dragonwing 2
Replies: 2
Views: 2763

Dragonwing 2

The best way to halt a project for a year is to talk about it in public, but here's some sketches of Dragonwing 2 :) 1 multicolor pixel smooth scrolling works! (Look closely at the tileset character pairs and you'll get it). Unlike the first Dragonwing, this one will be PAL/NTSC-compatible. And 8-16...
by aeb
Wed Dec 20, 2017 7:13 am
Forum: Programming
Topic: 10-Bit Oscillator Frequency Resolution
Replies: 24
Views: 20107

Re: 10-Bit Oscillator Frequency Resolution

Very nice! :D 10 bit test Hello please check this music that I wrote to try your corrections. and tell me if it's okay. For the songs already written I have to change the value of the note too that in your table is different. from those used in 8-bit for Pal thanks greetings Armando 10bit-pr.prg.zip
by aeb
Mon Dec 18, 2017 2:37 pm
Forum: Programming
Topic: 10-Bit Oscillator Frequency Resolution
Replies: 24
Views: 20107

Re: 10-Bit Oscillator Frequency Resolution

You're using it wrong... Your program only sets the high 7 bits of frequency, so there's no difference from normal VIC frequency resolution. You need to include also the low 3 bits in the data for each note - the small values 0-7 in the frequency table at start of this thread - and write them to the...
by aeb
Sun Dec 03, 2017 1:11 am
Forum: Programming
Topic: Sid Vicious - VIC 20 SID emulation
Replies: 65
Views: 33450

Re: Sid Vicious - VIC 20 SID emulation

Kananga wrote:
MadCommodore wrote:Anyone have the files still?
See this thread.
Original files here (+ I also mirrored Kananga's VicSidConv):
https://www.dropbox.com/sh/7m0d1nfrwujt ... EAdUa?dl=0

Or http://bit.ly/eightbitshed -> go to Sid Vicious folder
by aeb
Mon Sep 18, 2017 4:23 am
Forum: Programming
Topic: 4ty - 40x25 interlaced text mode on unexpanded VIC 20
Replies: 15
Views: 5387

Re: 4ty - 40x25 interlaced text mode on unexpanded VIC 20

For NinjaTerm I would use a full screen bitmap with 8x16 chars, but arranged and wrapped around in a way so that you can scroll the screen very fast. Odd lines can be scrolled up by just changing the value of screen y-position and wiping the top line (8-high). Even lines can be then scrolled up by r...
by aeb
Fri Jun 09, 2017 10:15 pm
Forum: Programming
Topic: 10-Bit Oscillator Frequency Resolution
Replies: 24
Views: 20107

10-Bit Oscillator Frequency Resolution

One of the most annoying things about VIC 20 is that the music all too often plays horribly out of tune. This program improves the frequency accuracy of square voices 1-3 from 7 bits (0-127) to 10 bits (0-1023). Fantastic! :D Download: http://www.cncd.fi/aeeben/download/10-bit-ofr.zip To init: jsr $...
by aeb
Thu Jun 01, 2017 6:12 pm
Forum: Programming
Topic: 4ty - 40x25 interlaced text mode on unexpanded VIC 20
Replies: 15
Views: 5387

4ty - 40x25 interlaced text mode on unexpanded VIC 20

http://i.imgur.com/pMT0KJ2.jpg http://i.imgur.com/pydhwf8.jpg http://i.imgur.com/Cb2R7KB.jpg There's a bunch of 40 column programs created for VIC, but I believe this one is different. Instead of slowly drawing nybbles to a huge bitmap, 4ty switches rapidly between two text fields of standard text ...
by aeb
Mon Feb 06, 2017 3:08 pm
Forum: Games
Topic: Vx02 Emulator
Replies: 4
Views: 2561

Vx02 Emulator

http://www.image-share.com/upload/3434/145.png http://www.image-share.com/upload/3434/148.png There's very little information available, but apparently Vx02 was a true oddball, low budget home computer based on 6502 chip and manufactured by Imaginary Early Computers, Inc. over 40 years ago. Vx02 ha...
by aeb
Mon Feb 06, 2017 2:57 pm
Forum: Programming
Topic: Maxi-/Uber-Edit
Replies: 50
Views: 18956

Re: Maxi-/Uber-Edit

Great work Tokra! I was actually a bit surprised that all this could be done without hacking the ROM :) Of course, people have done 40-wide screen routines before, but this one is much more useful, because it's fast!
by aeb
Thu Dec 29, 2016 9:19 pm
Forum: Emulation and Cross Development
Topic: WIP: Vicious SID Converter
Replies: 22
Views: 13305

Re: WIP: Vicious SID Converter

Great converter, Kananga! And a nice pack of songs from Tokra too. Has anyone else successfully converted other SID tunes recently? I've just "ported" the Sid Vicious code to C64 and optimized it for pulse waveform only - (NMI no longer needs x-register and C64 NMI doesn't need to jump thr...
by aeb
Tue Oct 04, 2016 5:46 am
Forum: Announcement Board
Topic: VIC-20 Software Releases of 2016
Replies: 19
Views: 29305

Re: VIC-20 Software Releases of 2016

Dropout - Traditional block game for unexpanded VIC 20 https://s22.postimg.org/uly8owt9d/Dropout_PAL_screenshot.jpg PAL version https://s17.postimg.org/nyid1idmn/Dropout_NTSC_screenshot.jpg NTSC version Dropout is tuned for fast play and implements many block game features that were not yet common i...
by aeb
Mon Oct 03, 2016 7:58 am
Forum: Games
Topic: New release: Dropout
Replies: 25
Views: 8663

Re: New release: Dropout

majikeyric wrote:and even a C64 version released for the Reset 4K compo ! http://csdb.dk/release/?id=150707 :)
Actually no, I didn't submit it to Reset 4K compo, that was false information on csdb :P :shock: :)
by aeb
Fri Sep 30, 2016 9:37 am
Forum: Games
Topic: New release: Dropout
Replies: 25
Views: 8663

Re: New release: Dropout

Misfit wrote:Works great and this font is super nice.
All games should have the Namco arcade font :D :D
by aeb
Thu Sep 29, 2016 2:59 am
Forum: Games
Topic: New release: Dropout
Replies: 25
Views: 8663

Re: New release: Dropout

Very nice game and highly polished to make it playable! Of course this: - PAL version does a graphics hack to display 12x8 pixel square blocks interests me the most. From what I can see you mean 8x12 pixel blocks (x by y) not 12x8. I see from a quick peek in the VICE-monitor that you seem to flip-v...