Skip to search.
Make Y! My Homepage
Visit Yahoo! News for the latest.
Close this window
· Intellivision Programmers
The Yahoo! Groups Product Blog
Check it out!
Founded: Apr 17, 1999
Already a member?
Sign in to Yahoo!
Yahoo! Groups Tips
Did you know...
Message search is now enhanced, find messages faster. Take it for a spin.
How to draw a circle (the hard way)
Hello all, I posted this in the AtariAge forum and I wanted to share it here too. It is an adaptation of Bresenham'
s Algorithm to drawing circles, translated...
Aug 15, 2012
jzintv (or another emulator?) on the ouya
I finally talked myself into backing the ouya console on kickstarter: http://www.kickstar
Aug 8, 2012
Gelide frontend for Ubuntu
Hello, I am trying to run JZintv in Ubuntu using the GElide frontend and while it loads the roms on the emulator page when I click on a game to play, it gives...
Aug 3, 2012
RF Modulators for your Intellivision
I don't generally like spamming the list, but since all or most of us have aging Intellivisions, I thought I'd let everyone know: I have a box of shiny, new...
Jul 31, 2012
Hello, I have been using JZintv for a while now and everything worked till a few days ago and now I receive JZintv command not found. I have retried the...
Jul 30, 2012
Macro array variables
Hello: Are macro array variables indexed or associative? I mean, if I wanted to do this: ; ------------ ; Define macro MACRO foo(idx) var[%idx%] EQU 0 ENDM ...
Jul 14, 2012
Square Root Routine in 21 decles
Joe, I thought you might like to see a 21 decle version of your square root algorithm. It is designed to fit exactly in the space the EXEC uses for its square...
May 25, 2012
Computing Square Roots
All, I just posted a somewhat lengthy description of how sqrt.asm in SDK-1600 works over at AtariAge. If you're curious, go read it here: ...
May 23, 2012
Decoding BACKTAB extra bits
Hello: I'm rummaging through the oldest parts of my game code to see if, being more experienced now, I can optimize any of them. I came across the code I...
May 23, 2012
Joe - When I recently started using the colored square libraries, I found there were two copies of a routine called PIXELCLIP. I had to comment out the one in...
May 22, 2012
Weather biases in Utopia
I wrote up a quick and dirty C program to simulate many millions of tics of weather movement across the Utopia map, to see if there are any biases inherent ...
May 21, 2012
Efficient bounds checking
Hello: I want to check a value between 0 and (Max - 1). I could do: ; R0 = Val TSTR R0 BMI @@__break CMPI #MAX, R0 BGE @@__break ; Pass... However, I...
May 19, 2012
Hello: While testing my game, I noticed that on very intense and fast levels, the screen "blanks" out for a single frame sporadically during game play. This...
May 17, 2012
Finding consecutive zeroes in consecutive words
All, I was trying to optimize the memory allocation routine in IntyOS. The problem is that I'm not very satisfied with the new (complicated) version which is...
May 14, 2012
Jump to register, enable
Hello: I think I know the answer to this one already: is there an instruction like "JR" but that jumps to a register and enables interrupts at once? There's...
May 11, 2012
New to this
Hello everybody this is my first post, I'm extremely new to programming for the Intellivision. I got into it after my buddy made a couple games for the Atari...
May 11, 2012
Joe, You once mentioned that a last-ditch optimization you applied to Space Patrol was to wrap some procedures in some way that will then look like a procedure...
May 6, 2012
Tools for game assets
Hello: I want to open a discussion suggested by Carl on what tools people use to compose their game media assets. Hopefully we can learn from each other and...
May 5, 2012
Passing several .sym files to jzIntv
This is probably a silly question, but what is the easiest way to automatically pass several .sym files to jzIntv? It seems like only the last one is taken...
May 4, 2012
Ok, so I spent a couple days reverse engineering Utopia. I now know pretty much how it all works, and now you can find out too. Here's some highlights, in ...
May 2, 2012
"Zoom" fade effect test
Hello: I've been working all weekend trying to get this effect look good. It's intended to serve as a transition between screens, and the white halo is to...
Apr 29, 2012
Comments in debugger script
Joe, I was wondering if I could put comments in a debugger "script" that is called withe the --file argument? It seems to ignore anything after a semi-colon...
Apr 28, 2012
Hello, I want to compute the radius of a circle automatically, given its origin, so as to guarantee that it will cover the entire screen. The most obvious...
Apr 28, 2012
Joe, The following code is from the Cart.mac macro file. Can you tell what it does, please? I'm just curious to understand why it is writing to ROM: ORG...
Apr 27, 2012
Test: concentric circle fade-out
Hello: After yesterday'
s thread on drawing a circle, I was determined that I wanted the fade-out effect to be circular (straight lines are so démodé :)....
Apr 26, 2012
DRAW_CIRCLE on BACKTAB
Hello: I wrote a routine to draw circles. Currently, it draws using whole cards on the BACKTAB, so it's a rather "chunky" circle. This is fine for what I...
Apr 25, 2012
"Writing" to ROM
Hello: This is probably a stupid question (and more stupid reasons are behind it) but, is there a way to have the debugger signal that an attempt was made to...
Apr 25, 2012
Homebrews from Elektronite!
All, Willy and Carl are publishing some new Intellivision homebrews under the "Elektronite&q
uot; banner. You can check them out here: ...
Apr 24, 2012
Christmas Carol on Vimeo
Hello all! I've created a channel on Vimeo to promote the upcoming Christmas Carol game. There I will post trailers and other videos to showcase the game. You...
Apr 22, 2012
Christmas Carol: Teaser #3
Hello all! The third installment in the Christmas Carol teaser series is ready! I call this one, "Snowman
39;s Gambit - Part I." You can view it here: ...
Apr 21, 2012
Just address an email to firstname.lastname@example.org
Jump to a particular message
Copyright © 2010 Yahoo! Inc. All rights reserved.
Terms of Service