Jump to content
  • entries
    63
  • comments
    76
  • views
    43,905

About this blog

caffeine-fueled projects & reviews

Entries in this blog

Koffi Redux 2020 part 2

In July 2020 I and sat down at my home-brewing desk and started to play around with tweaking my 2002 Atari 5200 homebrew, Koffi: Yellow Kopter.     I have had notes about doing a 2nd Koffi game since 2002 when I finished the first one, but it seems ever more unlikely I'll devote time to do a whole new sequel with all the ideas I'd planned.   So, I decided to play around with the original, add a few game play tweaks, some new visual details, fix a few bugs, and add a new 2-Player co-op mode.  Som

Cafeman

Cafeman

Koffi Redux 2020 part 3

Updated 10/12/20 with the results, see bottom.   I'm running out of ROM memory with the new code I'm adding for the 2-player mode of the game.  Koffi: Yellow Kopter was programmed in 32k back in 2002.  It seemed like a huge amount of ROM at the time, so I didn't try much to keep things small.  There ended up being huge graphics tables and repetitive code routines, just because that was easiest to do.   Also, before I finished Koffi, I used up as much remaining memory as I could.   

Cafeman

Cafeman

RL5203 update 02-03-2022

I figured out why using the TASM .TEXT command was producing junk at times.  It was because the 'pretty font' I used with Adventure II XE, font1.s,  had the characters switched around and some were actually replaced with custom chars.    Standard ASCII and ATASCII has lower case letters from $61 to $7A, and upper case letters from $41 to $5A.  But this font1.s had upper case in the range $21-$3A.  I had a temporary programming fix which got the upper case letters to work, but I kept noticing oth

Cafeman

Cafeman in Homebrew

You always blame me! Its not my fault!

The very last programming change I made to Adventure II XE brought me great happiness, because it was a bug fix that, although infrequent and minor, had eluded me.   Giving up on it over the past years of this project, I concluded that it must be a weird timing issue with the Atari Hardware and VBI timing. Something was perhaps changing registers behind the scenes?  Because my code was surely 100% rock solid and correct.     This was a bug which plagued me for years of this project. I'

Cafeman

Cafeman

I'm on a Saturn kick

Sega's 3rd party released Panzer Dragoon Remake for Switch, which I don't own and don't really intend to buy right now.   I've always been a bigger Sega fan than an Atari fan.  I almost picked up a Switch when the newer Virtua Racing came out last year, but didn't.    So I dug out my Saturn from the closet o'doom and hooked it up.  I have to use composite with my Panasonic 42" Plasma since it doesn't support S-video. I see there are Saturn Component and HDMI cables and I'm looking into

Cafeman

Cafeman

2022 comes to a close, HB notes and updates

2022 was a busy year for me.  I didn't have free time or  mental energy to do much homebrewing on Atari XE or 5200,  which I had wanted to.    On the personal real-life front, 2022 took everything I had.    Full-time job.  Family obligations, of course.  After a year of searching and looking at houses,  I successfully found and bought what we wanted  (many other properties I was outbid on,  or the property sold before I had a chance to make an offer. The real estate market was crazy in 2021-2022

Cafeman

Cafeman in Homebrew

Star Wars The Mandalorian

Star Wars: The Mandalorian series.  Episodes 1-7.      Initially I wasn't going to subscribe early to Disney+. But then they showed the trailer for The Mandolorian.   There was absolutely no thought process after that.  I waited a week to let 2 episodes queue up, then subscribed and watched the first 2 eps back-to-back.   I've now watched all 7 of the aired episodes, so what do I think?   I'll list my top 5 surprises and bottom 5  'cons'  so far.     I was going to post this earlier bu

Cafeman

Cafeman

Pressure washer art?

It always amazes me the GUNK that sticks to our cement and brick  walkway slabs in 1 year.  Every year I spend a full day pressure-washing all these front & back, and also my pool deck which has composite decking but still accumulates dirt that needs to be washed off.   This year I had a little drawing fun before cleaning them all off.   This isn't chalk on cement;  the dark parts are slime, the bright parts what it looks like after the pressure wash water cleans it off.   

Cafeman

Cafeman

RL5203 Jan 2022 update

For a while,  I have had an idea for Atari 5200 and A8 called Detective Powers. My old blog entry from 2015 has my original ideas.  Here is the original blurb for the game:    Assume the role of the world’s most famous consulting detective, using investigation and deduction to navigate Baker Street, countryside manors, and interior room locations in a retro 80’s arcade-adventure style of game play. Find helpful items and clues, keep your Detective Powers fully charged and solve each ca

Cafeman

Cafeman

DASM and ASL LSR ROL compile errors

I got my first clean compile in DASM for Detective Powers 5200.   I had started it a while back using the 6502 assembler called TASM, which is what I used for 5200 / XE Adventure II.  But I wanted to start using the most recent DASM 6502 compiler.   Many of the code formatting changes were straight forward to see the problem and easily change, but I spent some time trying to figure out why I kept getting unresolved symbols on "A" and "a".  I'm not sure if DASM can be configured to show me the li

Cafeman

Cafeman in Homebrew

Koffi Redux project, recoding dlists and fixing a bug

[EDITED again - added a Before and After pic below]    Back in 2020, I started to tinker with my old 2002 game,  the 32K Atari 5200 homebrew Koffi: Yellow Kopter.    I'm calling it Koffi Redux so far.   I fixed bugs, tweaked gameplay rules,  rewrote various graphics routines to make more efficient, added some colors and graphics, and added 2-player mode.  One nasty bug was in the original on stage Windy Vines - it took AA member @RB5200 to find it and report some clues to me.  The bug

Cafeman

Cafeman in Homebrew

Koffi designs and grids circa 2002

RE: this thread - https://forums.atariage.com/blogs/entry/16804-cleaning-out-the-homebrew-folders/     I dug out my 20+ year old gridlines notebook to draw some stuff and realized I had never pitched these designs for 2002's Koffi: Yellow Kopter. Posting them in a blog.     

Cafeman

Cafeman in Homebrew

2023 comes to an end, HB updates

I'm over 50, thus I have 1 deceased parent (from year 2000), 1 elderly mom and her elderly husband (of 21 years) , my stepfather. This year I spent a lot of days in support of my 2 elderly parents. My stepfather's health deteriorated a lot in particular, and thus there were many trips to hospitals, caregiving, then in-home hospice, then his death in December at age 84.  Now my mom is a widow again.  The first time she was widowed in 2000, she was only a few years older than I am now.   

Cafeman

Cafeman in Homebrew

×
×
  • Create New...