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Maybe, but we have to consider that it does not have any cache, no FPU and the VGA card is 8-bit which makes it very slow. I am gonna run some benchmarks to check!

I realized something: the FPU on the 386 is always external, the main difference of the 386SX is that its data bus is 32-bit internally and 16-bit externally (multiplexed in a similar fashion to the 8088) and a 24-bit address bus (instead of 32-bit). So the data bus width is probably one of the main reasons for the poor performance of Wolfenstein 3D on this machine. I am gonna try a 16-bit ISA VGA card and see if it makes any difference (in theory it should).

Thank you so much! I try to do my best!

I am glad in was useful!

Lol if only I could skate!

Wow thanks! You do a great job keeping these amazing machines working! The pictures on your website are amazing!!!

Hey! Thanks! Well, not really maple syrup! lol But yeah, we are really happy!

Crazy isn't it? Makes me feel lazy and guilty of using C and other higher-level programming languages!

Hi! Yes, a Brazilian living in Canada! You can easily tell by the accent and poor vocabulary! Lol

Hey! Thanks for watching! Apparently it can do that what I was not able to. And to be honest, I tried GEOS, LUnix and GeckOS d64s and none of them work properly. At some point they try to access the physical drive (for a file that is on the d64 image) and fail. I will try other d64 software and will let you know!

Maybe, these SoCs are intended for use with cameras and there is no point on doing cameras without some sort of CV//ML/AI these days, but depending on which Raspberry Pi you are talking about, a RB Pi (most of them) is gonna have a lot more horse power (aka CPU speed) to perform CV-related processing compared to these SoCs, not to mention that RAM size can also be a constraint.

Thanks! I am glad you liked it!

Lol! Thanks for the feedback, yeah I am still playing with all these things, but it is hard to find the right balance!

Thanks! Yeah at the very least it is an interesting OS!

Yeah, I already reviewed the machine code three times and could no find anything, I need to transfer the files to my PC and check them on a larger screen! Thanks for watching!

Thanks! The whole thing was so fun to do! Now I need to find the bug in the game!

Thanks! On these power supplies it is very common to find RIFA capacitors and also very common to see them failing.

Yup! But I am already designing a much nicer one!

Great minds think alike!!!! Enjoy the weekend!

Obrigado Francesco, que bom que gostou!

Thanks! Yeah I think the idea at least was cool! :)

Thanks! The next part is coming next week! And I already see lots of improvements I can make in the near future!

Yes sorry about that!!!

It is impressive, more impressive when you think about all the work to get there! Thanks for the suggestion and keep them coming!

Indeed! I still want to try DOSbox and Quake!

Yeah! And this game is still very entertaining!

Lol it was indeed! Damn bat!!!

So far.... Lol

Hey Don! Yes! I already tried Commandos (which I really liked when I was younger) and it played nicely!

Same! I am happy that it worked, thanks for the machine!

Hi! The PWM controller is a KA3882, no the main input capacitor has ~172V DC (in Canada we use 120Vac). I have ordered a few KA3882 and I am waiting for them to arrive. As I mentioned in the video I have replaced a few capacitors and resistors that were out of spec, but I could not replace any of the power transistors/MOSFETs since I don't have spares. Any ideas?

@@non_maskable_interrupt first make sure ic not defect by measure: Vcc(pin7) > 12V, Vref(pin8)=5V. If any that voltage missing or unstable that mean ic defect. Also, check electrolytic caps on Vcc pin.

You can refer to the schematics with ic KA3842, their functional pins are identical.

The problem is that Vcc to the 3882 is controlled by one of the two optocouplers on the board. That optocoupler is controlled by the yellow wire that comes from the mobo. There should be a 5V standby there that I understand is independent of the 3882. But that 5Vsb is not there. There is an individual transformer with two primaries and one secondary. One of primaries has a power transistor (can't recall the pn now) forming what I think is a self-oscillating circuit. I have removed and tested that transistor and adjacent components.Did not replace the transistor as I don't have a replacement or equivalent. When the control optocoupler is active there is 17V on pin 7. I also checked the standby which uses a 7805 after the rectifier/filter connected to the auxiliary transformer and everything seems fine. I tried to find schematics with 3842 that look similar to what I see, will try again. Thanks!

Thanks! Yeah, it is really cool how the loader was designed to load and write data to the floppy disk in realtime!

Indeed! That also brought my attention to how amazing the Apple //e design is! Now with both drives and keyboard working properly I am playing with floppy image streaming via audio!

What's not to like about them? :)

Thanks!

Thanks! I am gonna add the playlist to the description but some are tracker songs and some are from TH-cam's audio library (in this video they are all tracker).

amazing! Lol, thanks for watching!

Thanks Dave, it is a nice machine and I am trying to take good care of it!

Wow good to know about the RGB out!

Hi! I ordered a CF adapter and I am also planning to build a PCB to test a disk-on-chip. I will probably post a video comparing them!

Hi, it is in my to-do list! I've been busy with other things but I gonna publish more videos on the Apple //e soon! Thanks for watching!

Update: in my latest video I managed to fix the key! th-cam.com/video/-tmkbSPHgzw/w-d-xo.html

@@non_maskable_interrupt Thanks I'll check out your video!

Hey thanks!!!

thanks James, yeah I recall the TK2000 and TK3000, I think Microdigital (the Brazilian manufacturer) even added ROM and keyboard with accents to better support Brazilian Portuguese!

Glad you liked it!

Thanks!!!