Zx81 Tag


Have some fun! Explore the 139 articles tagged with zx81, page 4.
Juneís Program: Monster Maker
Okay I havenít finished my remake of Joust yet, nor did I want to wait until the last week of the month to get an article out. Instead, I offer you Monster Maker as Juneís monthly program. Itís pretty straight forward and anti-climatic against the power of todayís programs…
Posted Jun 08, 2014 by Steven 3 min read

Mayís Program: Joust
I actually started working on Mayís program of the month, Joust, about three weeks ago. My goal was to update the program to a faster and more fluid MCODER version. Sadly, things havenít gone so well…
Posted May 28, 2014 by Steven 5 min read

Aprilís Program: Flywheel
April has been a crazy month. I decided to try something new, pushed along by an unexpected event. Iím writing a book. I joined NaNoWriMo just after last November's event so I didn't expect to do anything until later this year. The surprise was their CampNaNoWriMo event in April…
Posted Apr 27, 2014 by Steven 3 min read

Marchís Program: The Ball Redux
For March's program of the month, I drew inspiration from one of my older demoís, The Ball. Like many young kids from the early eighties using BASIC, I took a stab at animating a bouncing ball. It is a a relatively easy program to write depending on how complex you want to make the math…
Posted Mar 29, 2014 by Steven 4 min read

Februaryís Program: Time
For February, I give you Time, a simple landing game with a twist. Using the Z and . keys, you maneuver your craft to each successive landing pad. If you miss the landing, keep trying but be careful. Run out of time and itís game over! How high of a score can you amass…
Posted Feb 16, 2014 by Steven 4 min read

Januaryís Program: Fireball
Januaryís program of the month, Fireball, marks a first for me. Although Iíve used a few different methods to type in my programs, Iíve always gone back to a Windows so I could use EightyOne to generate the program files and images…
Posted Jan 05, 2014 by Steven 5 min read

Decemberís Program: Dollar Sign
Winter has set in and it is time to close out the year with a simple game. Dollar Sign, Decemberís program of the month, is that game. All you need to do is move your character, which surprisingly looks like a dollar sign, into the inverse, dare I say it, dollar sign…
Posted Dec 30, 2013 by Steven 4 min read

Novemberís Program: SNUNCH ML
For November, Iím looking both forwards and backwards. Although I wrote SNUNCH in 1983, I added a corrected version to my first ZX81 web page in the í90s. SNUNCH was my early attempt at writing a PAC-MAN like game. Note that I said like, not clone. My goal was to be inspired, not to copy…
Posted Nov 30, 2013 by Steven 7 min read

Octoberís Program: Space Dock
Since itís been a few months since Iíve presented an animation program, I hereby offer Octoberís program of the month Space Dock. Written when the space shuttle program was in full swing, Space Dock depicts a shuttle launch for its scheduled docking to repair a satellite. Though time has purged my …
Posted Oct 19, 2013 by Steven 4 min read

Doing Some Fall Cleaning
I took a break from educating myself on z80 machine code, more on that later, to fix a few things that have bugged me about the site. They are minor and probably will go completely unnoticed by most, but I wanted to make a quick note for future reference. Hey thatís what blogs are for, right? I spe…
Posted Oct 01, 2013 by Steven 3 min read

Septemberís Program: S.M.P.
Octoberís program of the month is S.M.P. or Sinclair Memo Pad. A simple scrolling editor that allows you to take a couple of quick notes that last as long they are on-screen. Since the space key also acts as a break, which will stop the program, S.M.P. uses the newline key instead…
Posted Sep 21, 2013 by Steven 3 min read

ZX81 Nixie Clock
While searching for some code examples I ran across this inventive hardware expansion. Michel created a ZX81 Nixie Clock and has been kind enough to share his creation with the world through Facebook. Okay, silly me had no idea what a Nixie was…
Posted Aug 29, 2013 by Steven 2 min read

Augustís Program: Parachute
Whoa, itís August already? Time for another program of the month. Coming your way is Parachute, a deceptively simple reflex game that uses recognizable graphics to give you an enjoyable causal gaming diversion…
Posted Aug 08, 2013 by Steven 3 min read

No Spaces for You
I wasnít sure in my last post how to remove the extra space from the program listings. Well, I figured it out. It was surprisingly easy and took me about five minutes of searching and updating. Apparently there is a CSS property called line-height. Set it to one and problem solved…
Posted Aug 08, 2013 by Steven 1 min read

Updated Program Listing
Awhile back I went searching for a decent ZX81 font and ran across ZX81 VDU. I played around adding it to my siteís footer, but I really wanted to do more with it. Itís pretty good and, unlike some other fonts I found, it has all the ZX81 graphic characters…
Posted Aug 04, 2013 by Steven 2 min read

ZX81 Retro Gaming
I often search around the web looking to see what kind of ZX81 community still thrives. I truly expected to find a community in decline, but a surprising number of nostalgia sites are still out there. I found some dedicated to hardware, some to emulating, and others to software…
Posted Jul 25, 2013 by Steven 2 min read

Julyís Program: Spiders & Flies
July is almost half over, but we still have time for our program of the month: Spiders & Flies. You play a growing Venus flytrap that is searching for flies and special bugs. Use the ZX81 arrow keys to move around: 5, 6, 7, and 8. But be careful…
Posted Jul 21, 2013 by Steven 4 min read

Juneís Program: Blast Off
Blast Off, Juneís program of the month, is a simple game that tests your typing skills. You may find it a bit easier to play on an emulator than on a real ZX81. Fortunately, you can try now! It isnít a very hard game if you are decent typist…
Posted Jun 18, 2013 by Steven 2 min read

Mayís Program: Up-Cake
Well it is getting late in the month and I didnít want to pull another last-minute update. To make things a bit interesting, I used Zed Ex on my Android tablet to enter in this monthís entry. More on that in a bit. Let me first introduce our deliciously short entry for May: Up-Cake…
Posted May 19, 2013 by Steven 4 min read

Aprilís Program: Star Dodge
Late and last-minute, I present Aprilís program of the month Star Dodge. A decidedly simple game that requires you to dodge stars randomly placed on the screen. Can you get your Tie Fighter shaped ship, an inverse H, past the increasingly more dense stars? Give it a try to see. Star Dodge doesnít r…
Posted Apr 30, 2013 by Steven 2 min read

Marchís Program: Raider V
In 1984, I moved that Summer from Italy back to the US. As I was Flipping through my old printouts, I ran across one that I had marked as the last program I completed In Italy. How cool is that? Seeing this, I just had to make Raider V my program of the month for March. I was a big fan of mechanize…
Posted Mar 15, 2013 by Steven 3 min read

Februaryís Program: Enlarger
The old saying ďtime flies when youíre having funĒ is so true of late. This year started with a bang and I feel like Iíve been running ever since. It isnít that I havenít wanted to work on my old ZX81 programs, but they often take a back burner to other past times…
Posted Feb 24, 2013 by Steven 3 min read

January's Program: Hit Man
Another year, another month, and now another program to celebrate 2013. Januaryís program of the month is an old one: Hit Man. From 1983, Hit Man was my attempt at creating a wall dodging program and it is a tough one to play. Looking back, I probably should have made the walls a bit further apart…
Posted Jan 28, 2013 by Steven 2 min read

Decemberís Program: Thyime
December is upon us and Thyime is the last program of the month for 2012. My how quick the year has passed. Thyimeís elements include moving, shooting, a break through wall, and a moving enemy. It does all this while remaining fast. Thyime provides a decent game to close out the year. I wrote Thyim…
Posted Dec 16, 2012 by Steven 2 min read

Bonkers! Redux
I couldnít help it. I updated Bonkers using MCODER II to convert the BASIC code to Machine Language. This improved the speed of the game making improving its playability. If you havenít played the 1985 version, play it first so you can appreciate the difference…
Posted Nov 23, 2012 by Steven 3 min read