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6502 childhood dream come true (+VGA, Pi Pico, and Lode Runner too)

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It was always my dream since childhood to build a computer.
This is the story of my hobby activities over the past 2 years and the host of new skills picked up along the way.
The story starts with the Ben Eater 6502 kit: eater.net/6502
The ACIA datasheet is here: www.westerndes...
Source code for Wozmon can be found here: www.sbprojects...
Create your own version of Microsoft Basic for 6502:
www.pagetable....
Logisim is a free digital logic simulation tool:
sourceforge.ne...
KICAD download:
www.kicad.org/...
Retro Ports: Apple II Lode Runer for the Coco 3 Beta 2: retroports.blog...
Lode Runner - 1983 Apple ][ port to the Tandy CoCo 3 by Mark McDougall:
• Lode Runner - 1983 App...
‪@DavePoo‬ Emulating a CPU in C++ (6502) videos: www.bing.com/v...
Klaus2m5's 6502 functional tests: github.com/Kla...
V. Hunter Adams VGA on Pico blog post: vanhunteradams...
ebadger/BadgerFrotz: Frotz Z-machine ported to a Raspberry PI Pico designed to run on the ebadger LodeRunner platform (github.com):
github.com/eba...
‪@GeorgeFoot‬ The World's Simplest TTL Video Card?
• The World's Simplest T...

Опубликовано:

29 авг 2024

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Комментарии : 194

@zgolkar Год назад

I lost count of how many times my jaw dropped watching this. That’s raw motivation! Wow.

@thecodesorcerer Год назад

Thanks!

@ftsy98 Год назад

from never doing hardware to a 4 layer board? nice stuff dude

@thecodesorcerer Год назад

Thanks!

@ArneChristianRosenfeldt 10 месяцев назад

Isn’t 4 layer the easy, lazy solution to distribute power? From the EEVLOG I learned that with through-hole routing is criss cross on the surfaces. Like in a breadboard: internal is vertical, then there is space for your horizontal colored wires.

@akamadman203 10 месяцев назад

@@ArneChristianRosenfeldt if it works does it really matter? its not a final product of any kind

@ArneChristianRosenfeldt 10 месяцев назад

@@akamadman203 I just say that the hi tech solution is easier. If you need to save any penny in a series production, you try to reduce this to two layers like Nintendo had done with the N64.

@sansmojo 9 месяцев назад

@@ArneChristianRosenfeldtHaving just designed my first PCB, yes. I had a choice between figuring out some clever way to route traces between top and bottom (because too many traces needed to overlap) without causing lots of EMI, or just switching to 4 layer. I probably saved myself weeks by switching to 4 layer.

@TimePilot2084 Год назад

If this doesn't go viral, either within the maker circle or the retro-gaming/emulation circle, then... then... then life isn't fair! This was an amazing feat. I'm interested in owning my own Lode Runner Appliance.

@thecodesorcerer Год назад

Thanks. Please send mail to Eric.badger@gmail.com

@Nevir202 10 месяцев назад

Seems life isn't fair...

@erichey6394 Год назад

Congratulations Eric. I am in the same rabbit hole. After 25 years of software engineering, I am starting to use my electrical engineering degree again, recalling my younger years, and having a lot of fun learning. Hope to see more videos from you.

@thecodesorcerer Год назад

Best luck - any project you're focused on?

@TheSulross Год назад

do a YT search on the Agon Lite SBC - aimed at retro hobbiest. It uses the Zilog eZ80 as it's CPU. This is backwards compatible to the Z80 but also has a 24-bit mode where can address up to 24MB. And there's an 8-bit base register so that multiple 8-bit Z80 programs can be loaded into that address space for some multi programming fun. Me thinks this Zilog eZ80 CPU is just the bees knees for designing new hobbiest retro-themed SBCs around. Give it a thought for next projects that up the ante over 6502 systems.

@vbachris 10 месяцев назад

stuff like this make you really appreciate those who did this back in the 60s 70s and 80s

@elitemantis Год назад

I watched one of Ben Eater's videos some time ago (the Let's Build Video Card), but didn't understand too much due to not following from start and never having done any serious engineering on my own. Couple years passed and I saw this video. Then I started watching Ben Eater series from start, interrupting from time to time to re-watch this video as my understanding of what you're saying grows more complete. Now, after watching this video maybe 10 times, I think I'm going to create my own 6502 computer. Thanks for the inspiration!

@thecodesorcerer Год назад

Yes!

@cianmoriarty7345 Год назад

1:48 Eric Badger: "A close second was Ultima IV" Me: "Thou art a cad and a bounder. Thy presence is an affront. Thou art low as a slug!"

@thecodesorcerer Год назад

I take it you’re an Ultima IV fan. It is a masterpiece in my opinion.

@danielpaurat1783 Год назад

Man, your video resonates so much with me =) I also watched Ben Eaters videos without an electrical engineering background at the beginning of the pandemic and had to start tinkering right away. This kickstarted such a rewarding hobby for me. Since then I build his 4 Bit breadboard CPU, started modding it over and over and ended up building a whole computer around a Z80. Just the other month I saw a video of a guy building Pong from chips, so I had to do this too. Thank you very much for sharing this great video and you are absolutely crazy (in a positive way), for taking it so far. Kudos!

@drivers99 Год назад

That's so cool! I just built the Ben Eater 65c02 project. Bought the 8 bit (4 bit?) computer kit. Right now I'm working on learning KiCad while designing a PCB for the 65c02. Maybe I'll do the clock module too while I'm at it. This morning I ran across the pre-made W65C02SXB and was enjoying reading the data sheet and the schematic and actually understanding most of what I saw, which was awesome. It makes me want to do more projects too like Z80 (like following John's Basement) or another channel I saw building one with an 8088. But I also want to make my own little computer (cyberdeck) with a Pico as the base. I have to stay focused on one project at a time haha. Oh yeah I also want to create a Forth (it lets you move from assembly to high level language quickly and easily, while using very little memory) for one or more of those computer (or just run an existing one).

@danielpaurat1783 Год назад

@@drivers99 It's a rabbit hole, isn't it? I really like your Forth idea; reminds me of a video I saw about a guy who took Ben Eaters 4 Bit SAP-CPU and extended it until he was able to compile C code for it. (I think it was mainly turning it into an 8 Bit one and adding a Stack module.)

@MikelNaUsaCom Год назад

Nice job. The biggest challenge is keeping your hobby from being just more work. I built 8 bit cpu, was going to expand memory, but it's on the back burner, as I've shifted to doing machining and metal working for hobby, currently. Welding is proving similar to sharpshooting, breath and sight picture are weirdly similar to keeping a consistent distance and bead size on the welding. never enough time if you have too many hobbies.

@thecodesorcerer Год назад

I know what you mean. I try to keep it fresh by continually learning and adding new skills. Welding and metal work is actually on my list!

@Joorin4711 Год назад

You have fine tuned the ratio between information and visual data perfectly! Even though the pace is high in your video, at no time did I think "What was that?" nor did I feel the need to rewind. Excellent work!

@tenminutetokyo2643 10 месяцев назад

And Xbox 360 Achievements. Well done, young Skywalker.

@MotownBatman Год назад

This is Killer, My Adult ADHD Engineer butt couldn't comprehend this but always wanted to make an apple 2 and find an old case to repurpose; Great Job! Hit that Sub button! Keep it Up

@rumbledethumps Год назад

I wonder if the algorithm thinks we're the same person? W65C02S. Check. Pi Pico. Two of them. Iterating on EPROMs is lame. Indeed. Woz monitor in 256 bytes. RP6502 monitor in 32 bytes. VGA. Same, but no graphics mode yet. Z-machine? On the 68000. RU-vid. RU-vid. Well done.

@thecodesorcerer Год назад

The similarities are uncanny. I enjoyed your recent video with the FPGA and Commodore keyboard.

@cburgess5294 11 месяцев назад

late to the party but this video had me smiling from ear to ear. Seeing the entire journey was just delightful and reminds me of some many fun projects I have done in a similar fashion.

@tenminutetokyo2643 9 месяцев назад

Done up in blueprint blue.it’s like a dream come true.

@jsmythib 8 месяцев назад

You mentioned several of my favorite builders/channels and hit on every bit of tech I like... The algo is good today. :)

@rallokkcaz Год назад

Saw your booth at the PRGF, didn't have enough money at the time to support your project but I'm excited to see that a video about this and the progress you've made since then.

@thecodesorcerer Год назад

Hope to see you this year

@mammouth2727 8 месяцев назад

Wow. I am speechless. I am without speech.

@not_the_best Год назад

Well this is awesome. That Pico case is gold!

@robinpalmquist3679 Год назад

This is just amazing

@someusername1 Год назад

This is deeply impressive work. Wish I was this clever.

@thecodesorcerer Год назад

Thanks!

@ridiculous_gaming Год назад

My computer love path is literally identical to yours regarding owned systems, except I would never dream of creating hardware. You would have made Jay Miner proud!

@rduckey1956 Год назад

I am truly impressed. You have a serious amount of drive and I truly applaud your dedication. Lode Runner was the first game that I spend 4 hours straight on in 1983 on a C-64. I still love the game, Email incoming.

@thecodesorcerer Год назад

Thanks!

@rafaelgadret Год назад

very cool! I am impressed and envious of your dedication and skill!

@thecodesorcerer Год назад

Thank you very much!

@delmonti Год назад

...there's no 'off' on the genius switch! You are amazing Sir!

@thecodesorcerer Год назад

Wow, thanks!

@skellious Год назад

IT was fascinating watching your progress! Thank you!

@thecodesorcerer Год назад

Glad you enjoyed it!

@glarynth Год назад

The algorithm sent me because I've been learning to program an Atari 2600, but this is next-level!

@scotty3114 10 месяцев назад

I was a hardware tech back in the day.. Lode Runner was my favorite game. Have tossed some ideas around, but you are beyond my wildest plans! Good work! I am interested in a Loderunner box.

@TheSulross Год назад

a retro computing hobbiest over achiever - kudos!

@jengelenm 8 месяцев назад

A huge journey in a tiny video. Beautiful man!

@davidhand9721 11 месяцев назад

"If you want to learn an instruction set, build an emulator" is so, so true.

@jimpyle99 Год назад

I’m interested in the appliance! Nice work.

@thecodesorcerer Год назад

Send mail to Eric.badger@gmail.com

@egorsolominov3096 Год назад

Impressive amount of work, my congratulations! Thanks you for the links!

@Coillcara Год назад

You don't give up! Great stuff 👏

@thecodesorcerer Год назад

Thank you 🙌

@dolsthoo Год назад

Very interesting to learn about your journey of building a 6502 computer and running Lode Runner on it! Your video has a nice pace and I like the editing and your voice-over.

@thecodesorcerer Год назад

Thanks Dion! You did a great job on the LodeRunner 2600 game btw. I wish I'd grabbed a photo with you. Are you planning on attending the PRGE again this year? Any new homebrew 2600 games in the works? Any other projects?

@dolsthoo Год назад

@@thecodesorcerer Thanks, Eric. Yes, I hope to visit PRGE again this year and then make sure we make a photo :) So cool to know that you helped backing up the original LR source code. I don't have new homebrew 2600 games in the works; currently I'm spending my spare time on restoring an old Out Run arcade cabinet.

@bobbazley5376 Год назад

Just stumbled across this video but thank you for sharing as it’s amazing to see what people develope. I’ve always enjoyed retro machines especially when we all had to know just some basic commands to get it to do the most basic of stuff. These days we only have to click on an icon and it’s all done for us. Maybe you can emulate another great 6502 computer called the BBC B micro from Acorn. Keep up the work you have done some amazing cool things :) regards from across the pond… the remote Scottish Highlands

@thecodesorcerer Год назад

Cheers!

@untodesu 7 месяцев назад

5:56 that's some cga-esque snow right here

@petermuller608 Год назад

Quite an achievement! Also, nice video editing

@thecodesorcerer Год назад

Thanks!

@OddObsolete Год назад

This is incredibly cool and inspiring! Awesome work and great video too!

@GaryLaRocco Год назад

Most impressive indeed! I'd love to purchase a LR build as well. :)

@thecodesorcerer Год назад

Email me at Eric.badger@gmail.com

@sulrich70 Год назад

what a journey! well done sir.

@thecodesorcerer Год назад

Glad you liked it!

@Draculinio Год назад

Loved it.

@dragoncracker Год назад

such an adventure, great job!

@thecodesorcerer Год назад

Thanks so much!

@barmalini Год назад

I love that processor, it was the first chip I learnt to program in assembler

@ArneChristianRosenfeldt 10 месяцев назад

I still feel like it has the best use of flags. Once a CPU has a barrel shifter, flags are only useful for ADC and a for loop. LDA sets the zero flag. This promotes zero termination of strings. This lead to a lot of bugs. With 16 bit instructions on JRISC or SH2 it still hurts to waste too many bits on operands. Fusing the CMP and test instruction with branch allows us to cover a lot of use cases. Without flags, instruction re-ordering is easier. RISC is not foremost about the number of instructions. At least I say that we are allowed to specify if ADD listens to the carry flag and if it writes it. Then don’t re-order those ADDs. Loop instruction from 8086 ? It is so weird that there is no clear upgrade path from 6502. ARM is so complicated. I guess that 32 Bit instructions are necessary for the absolute addressing mode.

@madeleinemcandrews6712 Год назад

Hey Eric, I’d really love to buy a Lode Runner appliance! How awesome 😅

@jurgenskrause Год назад

This is amazing, I am busy doing the nand2tetris course and would love to build a 6502 machine when I'm done. Unfortunately living in rural Africa means sourcing parts is nigh on impossible. Thanks for letting me live vicariously through you!

@thecodesorcerer Год назад

Where in Africa are you?

@jurgenskrause Год назад

@@thecodesorcerer In the Kingdom of eSwatini!

@peteratkin3788 Год назад

I am most interested in buying your 'load runner' kit and congrats, a good job well done.

@thecodesorcerer Год назад

To clarify, I’m selling the PI Pico based boxes that are running the emulator. They’re currently finished although I’ve been thinking about making into a kit. The “beast” 6502 computer + vga using TTL is still under development.

@thecodesorcerer Год назад

Send mail to eric.badger@gmail.com

@crusader2.0_loading89 Год назад

This is incredible

@ThecrackpotdadPlus Год назад

Hi mate, I love this video, made with such love. Check out the rest of you videos now.

@thecodesorcerer Год назад

Thanks!

@elektron2kim666 11 месяцев назад

Pumping something out of the Pico/MMBasic myself. It's closest to the ZX-Spectrum/Psion with potentials for sensors, keys, displays. I hate all the wiring and tests with failures. The cutest construct is a PWM Throttle for a BEC (RC) which could become automatic one day and for now it's just up and down + emergency stop (3 keys) and I enjoy a propeller under my command. It's just showing -99 to +99% on a display and looks like a tiny PC. My idea with it is a servo tester, but I would like to mount a propeller on an RC car and such construct is a bit confusing, still.

@BBfanfun Год назад

Great Memories ! for me , it was the Commodore 64 version ! along with ARCHON & JUMPMAN , i wanted to learn Basic to make my own games , HA ! enjoy that 8-bit goodness !

@thecodesorcerer Год назад

Archon is a favorite of mine

@karlramberg Год назад

Cool. You went through it so fast it seemed almost too easy. Each minute could be a separate video

@EngineeringVignettes Год назад

You crammed a lot of info into this video! Looks like you gained a lot of valuable info in this quest. LR is a good benchmark for 8-bit machines and is a good game, I'm partial to an offshoot of the game (Lode Runners Rescue) as it was the first iso game that I saw in my youth running on a C-64. Cheers,

@thecodesorcerer Год назад

Thanks!

@pinchopaxtonsgreatestminds9591 Год назад

That's an interesting hobby you have.

@thecodesorcerer Год назад

Thanks

@GeorgeFoot Год назад

Well done, it's great to see how this has all come together! For counting in 7s, it's probably fine if it's just the addresses being done like that - you can make the least significant counter be a 4-bit one and make it wrap after 7, or initialise it to 9 whenever it reaches the terminal count, which I think wouldn't require any external logic

@thecodesorcerer Год назад

I can read a byte at a time but would need to have pixel clock such that 7 pixels are output per phi2 cycle. The high bit is a conditional palette bit. I think I’d need the pixel clock to run at 1.79MHz instead of 1.57. (Reading 8 bits and outputting 7). If I did 280x192 (apple hires) I think I’d need to use a 22.02813 MHz clock. Maybe 22MHz would be close enough. Not sure I could reliably generate the sync signals though.

@stevemcknelly5036 Год назад

This was great fun to watch!

@thecodesorcerer Год назад

Thank you

@cthutu 11 месяцев назад

I'm attempting to do the same thing with a 6809 chip. This is a very inspirational video. I am too feeling intimidated doing my first PCB with KiCad.

@thecodesorcerer 11 месяцев назад

It is so worth it, and in retrospect not as hard as it seemed to be. Do it! 6809… hmm CoCo?

@cthutu 11 месяцев назад

@@thecodesorcerer I am Welsh, so I would say Dragon 32 :)

@thecodesorcerer 11 месяцев назад

@@cthutu best computer name ever

@cthutu 11 месяцев назад

@@thecodesorcerer both Dragon 32 and Coco were based off the Motorola reference so they quite similar.

@ArneChristianRosenfeldt 10 месяцев назад

6809 has MUL. So please show off some DSP audio stuff and 3d !

@ErzaRosenberg Год назад

Awesome project.

@thecodesorcerer Год назад

Thank you!

@taskanawa9604 Год назад

awesome work

@thecodesorcerer Год назад

Thank you! Cheers!

@VauxhallViva1975 Год назад

Fantastic work.

@thecodesorcerer Год назад

Thank you! Cheers!

@UndiagnosedGenXer Год назад

Very Nice!! I'm on the same path (dev for 25 years, started on an Apple IIe, found Ben Eater, etc), but nowhere near your level of awesome.

@thecodesorcerer Год назад

You can do it!

@ChadDoebelin Год назад

Good job! I've subscribed and will keep watching!

@thecodesorcerer Год назад

Awesome, thank you!

@derekchristenson5711 Год назад

Great job!

@Oregun 10 месяцев назад

Awesome! Hardware is nothing more than software in 3D ... says this old software guy. :)

@JSRFFD2 Год назад

Great work! I've personally written a few 6502 assemblers and emulators, but have always shied away from real hardware. Your work is a real inspiration! I've always wanted to make my own video card too. If you would be willing to share schematics or other resources, I'd definitely be interested!

@thecodesorcerer Год назад

Happy to share. Kit was amazing at kicking off the hobby.

@63801170 11 месяцев назад

woah! 🤯 Amazing...

@thecodesorcerer 11 месяцев назад

Thank you

@feedle Год назад

I love my Lode Runner box! BTW I'd have a strong personal interest in your Frotz project.. a friend does a lot of Frotz work and I write IF.. See you at PRGE 2023!

@thecodesorcerer Год назад

Definitely, I can send you a BadgerFrotz image if you'd like to flash it on your box

@cellularmitosis2 2 месяца назад

Great video!

@williamtell1477 Год назад

Heck yeah, this is super cool!

@thecodesorcerer Год назад

Thank you

@rille47 Год назад

Very interesting and amazing work, well done sir, the breadboard route is a very ambitious path - respect! My favs from the early 80´s were the same on the beloved Apple II - Lode Runner, Ultima IV (can not even understand today how many hours I spent on it). The Apple had some other games worth mentioning, Sabotage, Boulder Dash, Archon, MonteZumas Revenge, 7 Cities of gold to mention a few that also got some time put in to them.. ;)

@jimweil8879 Год назад

Same here. Throw in Pinball Construction Set to make the hat trick.

@dazetwenty346 Год назад

thanks youtube algorithm! subscribed!

@thecodesorcerer Год назад

Awesome, thank you!

@shawnbadger2737 Год назад

So cool Eric! I love how you established the goal of running Lode Runner (such an awesome game!), and then just took one step at a time to get there. If I wanted to delve into learning hardware, do you consider the 6502 kit a good place to start?

@thecodesorcerer Год назад

Thanks Bro. 6502 kit and video series were super helpful. I’ve watched the 8 bit computer series. I have the kit but haven’t done it yet. You might want to start with the 8 bit kit.

@gordong-me7df Год назад

i am interested in a load runner gizmo, load runner is one of my favs too. also Mister FPGA i have 5 different systems that have load runner on it. the x68000 god computer i think is running the apple ][ version of it on the mister FPGA. Thanks for your work! -G

@thecodesorcerer Год назад

Send email to Eric.badger@gmail.com

@MD_il_microcanale Год назад

fantastic!!

@thecodesorcerer Год назад

Thanks!

@johndododoe1411 Год назад

To handle 7 bit wide blocks, just load a new byte into the output shift register earlier, and possibly rewire the parallel input to load the compatible bit position into the shift register output bit. Almost any complex logic circuit can be built cheaper by programming it into a modern CPLD or FPGA, this is the modern equivalent of the "uncommitted logic array" chips that 1980s computer makers customized for fabrication, but available as single units with a 4 pin programming port or a connection to an external flash chip storing the logic design.

@thecodesorcerer Год назад

For this project I would consider FPGA to be cheating. That said I have an arty7 on my desk for a future project.

@johndododoe1411 Год назад

@@thecodesorcerer Hence my suggestion to use a CPLD or old school PAL instead of a large number of 741xx chips, such as 74166 pixel shift registers for the 7 or 8 bit formats of fonts and graphics. 6845 controller chips would be time appropriate but are hard to find these days.

@Xsiondu Год назад

Nice!!

@atariastinus Год назад

VERY cool video! I really enjoyed how you covered your journey. I'd love to see more detailed videos of how you worked through various aspects of your design. I've been wanting to build the Ben Eater kit for some time now. Amazing how you took it to the next level. Where can I get one of the Lode Runner appliances?

@thecodesorcerer Год назад

You should, it’s a blast. What would you like to see specifically? Please send me mail: Eric.badger@gmail.com

@atariastinus Год назад

@@thecodesorcerer I'd love to see more on your PCB 6502 work and the video output. It was cool how you could see the interference in your early video work. Was that system data writing into video ram? Thanks again for sharing.

@thecodesorcerer Год назад

In the v2 version, video and cpu RAM were separate. In v3 they’re shared. While clock was high, cpu would control video RAM. In order to have 4bpp the video logic needed to read from RAM at ~6MHz. Couldn’t get the timing just right at that speed. Newer version reads at 1.57MHz which creates a lot more timing grace.

@erkl797 Год назад

Hey Eric, I do love playing Lode Runner. I still have my original cart for the C-64, and a disk with levels I made in my teens. I always wished the C-64 version was blue like the original. So ya I'm interested in one of your LR Kit. I'm Eric as well.

@thecodesorcerer Год назад

let's connect over mail, eric.badger@gmail.com

@RistarteYoshiCH Год назад

Hello there! Love your vids! May I know where you get infos concerning hardware text mode? I got a vga board but have no idea how to implement the hardware text mode

@JasonTaylor-zf6fo Год назад

Very interesting. I enjoyed playing doom on the sansa clip.

@thecodesorcerer Год назад

What’s sansa?

@jason.arthur.taylor Год назад

@@thecodesorcerer 1 inch x 2 inch tiny mp3 player with a square display.

@retrokayla Год назад

This is great! I can't wait to see Loderunner running! As for porting Frotz... is a computer even truly usable if you can't play Zork on it?

@ml.2770 Год назад

Cool.

@thecodesorcerer Год назад

Thanks

@b213videoz Год назад

My childhood dream was to hack "Robin of the Wood" - a ZX version by removing that annoying witch 🤪

@mdrake42 Год назад

Love the video. You tube recommended it, and it was a great watch. You mentioned about purchasing a load runner appliance at the end of the video. Any still available? If so, are you ok with international shipping?

@thecodesorcerer Год назад

Mail me at Eric.badger@gmail.com

@gameboyv1790 Год назад

Wow

@markfisher696 Год назад

Why is the 1040ST mirror imaged in the opening intro? Minds boggle.

@thecodesorcerer Год назад

Missed that detail

@petermuller608 Год назад

With regards to the RAM access, traditionally this was done by the CPU accessing on low clock, GPU on high clock instead of using a dual interface RAM Judging but what you did you already know that most likely xD

@thecodesorcerer Год назад

Yep! Except vice versa. GPU access is on low clock as of now.

@ArneChristianRosenfeldt 10 месяцев назад

C64 has extra SRAM for color attributes. This in turn required a way for the CPU to access them. What if we use SRAM to load the next line of attributes in the side borders? Or do we want sprites? Maybe there would be a register to specify how much SRAM is loaded with attributes and how much with run-length encoded graphics for a sprite layer?

@RetroDawn Год назад

Great projects! Couldn't understand what you said about the Atari HCS and C64 source code, though. I think you said "not" (still on floppies). Are they (as of now) lost forever, or already preserved? I assume the former.

@thecodesorcerer Год назад

As of now. Still only on floppies!

@RetroDawn Год назад

@@thecodesorcerer Oh, then my guess as what you were saying (hard to hear the last word in the sentence) was wrong. That's good news! So, they're still on floppies. I wonder if the company could be convinced to share them with one of us in the community, so that we can preserve that source code, as well. I have both systems with disk drives (many of Atari HCS and C64/128 and many drives) and would love to volunteer for that. That was so amazing that they did that with you. Most companies wouldn't do that.

@mnewman7303 Год назад

Fantastic!!! I remember playing it on a apple II. Great simple game. How can I get one?

@thecodesorcerer Год назад

mail me at eric.badger@gmail.com

@Dodo-bf3dm Год назад

Hi! When you ask about buying a Lode Runner machine, are you talking about the Pico, or the actual hardware?

@thecodesorcerer Год назад

Thanks for asking. It’s the PICO. The “beast” is still a work in progress and may be for some time.

@dazealex 11 месяцев назад

I'd like to buy one, please!

@Eightbitswide Год назад

Where do you sell the loderunner pcbs/etc?

@thecodesorcerer Год назад

Email Eric.badger@gmail.com

@PeterRichardsandYoureNot 10 месяцев назад

Yeah as good as Apple ][ graphics were at the time, I am still to this day, perplexed as to what won was smoking when he decided to setup the graphics modes and memory mapping for graphics on the Apple ][ at the time. In short, don’t bother trying to make it Apple ][ compatible unless you have some SM desire.

@thecodesorcerer 10 месяцев назад

Haha, yeah. Woz is a madman. Too tempting to access the Apple II software library, so I’m doing it! Graphics are basically already working.

@nrnoble Год назад

Very Very Cool! Thanks for creating this video. I am interested in a Lode Runner appliance. In 1981 I was in HS, and I bought an Apple ][+ (48K, 1 disk drive, $2100) with my own hard-earned money. Lode Runner was the first game I purchased and I played the game for 100s of hours. The game still holds up today as a fun game to play. Thumbs up!, Subscribe.

@thecodesorcerer Год назад

Wow, $2100 in 1981 dollars is no joke. So glad you enjoyed it. Please send me mail at eric.badger@gmail.com and can work out arrangements.

@jamescole6846 Год назад

Me and you are about the same. After I graduated HS and was going to tech school for EE, I bought an Apple 2e in 1983 for about the same price. Had the Koala pad, color monitor and all the other options. It was an upgrade from my Ti994a. I played the crap out of LR as well as Choplifter, Wolfenstein, Galaxia, pitstop, and the others but LR was one of my favorites that I also had 100s of hours in. FF to today and the last games I finished were FC6 and RE8. how things have changed. I was a big Doom, Quake and UT for years as wells as every COD but I'm pushing 60 so I am very selective and I don't even try to play games like WarZone anymore. Hands just don't work that fast anymore. But I do still watch the good streams on the tournaments. FYI, if you never played the TF2 single player campaign your missing one of the best stories/games ever made.

@RasVoja Год назад

@krakulandia Год назад

How did you make he HW text mode?

@thecodesorcerer Год назад

Fonts are stored in a rom chip. 1 pin on the chip for each bit of the 8 bit ascii value from memory plus 4 pins indicating the screen row are combined to retrieve an 8 bit value representing the pixel pattern. That value is loaded into a shift register and out put on each cycle by pixel clock. VGA circuits are scanning through system memory. Maybe I’ll make a video describing it.

@krakulandia Год назад

@@thecodesorcerer I would be interested in seeing a video about this topic :)