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Thanks for sharing.

To have 1980's eyes - consider the cost of memory at the time. Youth may not appreciate that. in 1980 64k would cost $400 that is 1980 dollars with inflation that is roughly $4000 today, in 83? 256k cost $600 about $3000 today; by 1985 that $600 would buy 1 Megabyte of Rame or about $2500 of todays money. CPU's also cost a lot. Appreciate that upgrading a computer's memory or CPU was not a trivial expense. When the Macintosh was introduced for $2500 in 1984 was about $12,000 todays money so you can see few could consider it and Apple nearly went bankrupt.

Hi Dave, all the best wishes from the Netherlands. Hope you are doing fine. Kind regards, The MOS 6502.

It's going to receive even reboot ❤ I'm working on official Project X Light Years (demo on Steam)

I have the same drive. Almost exact issue with stepper. I think the driver might be busted.

I remember testing this, but it was of course pointless - back in the day I didn't have any hardware synths. But the Amiga still kickstarted my music production hobby with its trackers. It was an awesome machine and moving on to the PC felt like losing a friend.

It took ages for the disk to load up, and made those horrible loading noises.

Being able to copy games. I remember as a kid we all had lists of games we had. We'd swap our lists and then swap discs, copy our games at home then bring em into school the next day. We all literally had thousands of games.

Good game but way too hard. One slip of the mouse and it's game over.

The code in menace is incredibly dirty and inefficient, but that's how it would have been in the early days. I learned to code the amiga the hard way: with a disassembler and monitor - change something and see what it did. I ordered the HW ref manual at the local library and I think it turned up 10 years later :)

I remember working on my own shutdown/startup code extensively back in the day. I collaborated with a number of other people and I think we came up with a pretty good universal sys shutdown and restore, along with loads of detection functions for various hardware. Someone already called the blitter waits, which was pretty standard practice (even using a double wait if I remember). Other interesting tricks which these videos conjured up in my memory was clearing the screen with blitter and CPU at the same time (half each) as they could do it in half the time. I seem to remember that the cpu ran on even clock cycles and the custom chips on the odd cycles so you could use that to your advantage. Great times :)

Interesting watch, this series. I remember this being published back in the day. Almost made me want to get the old devpac out again, although I never got to try devpac 3, I had some wierd enhanced(?) devpac 2 which I used until the end.

SIDKICK suena mejor, no es 100% pero creo que es mucho mejor opcion que SwinSID

Hard like me...

Funny 😂

Sounds like a man trying to move a heavy sofa by himself

Great video Dave. I enjoyed that one especially when you thought you were done but the continues kept bringing you back for more. Sign of a good game 😁

The great Tim Follin flexing his musical muscles

even tho i am c64 thru and thru, for some reason, I didn't know this made it to the c64. I had it on the Amiga and probably assumed that it would have been too difficult to make it for the 8-bit. looks pretty good, and definitely seems as hard as the other versions.

Still have the original boxed disk version of this game. It's a pretty tough game. I had to use poke cheats.

I recall seeing a red car with the reg HISOFT back in around 2020-2021. I thought, "That's got to be the owner of HiSoft". A quick Google later that day confirmed it to be so. Turned out he lived local for a number of years, and I'd never known. Pretty cool, I thought

For the case you could consider sandblasting. The over-bleaching is likely very superficial, but fine abrasives like creme cleanser or melamine foam "magic" erasers will make the surface too shiny.

I feel your pain, though in my case it was the keys that came out blotchy, marbled and ghostly, as I used a zip-lock bag for those. The case came out nice overall - I didn't use plastic film but brushed on creme developer with corn starch and left it open in a big plastic box - apart from some overbleaching where condensation had dripped onto it. The keys were also crackly from the sun damage, which probably didn't help. I think bags or film are just asking for uneven results. 12% peroxide is quite capable of bleaching beyond the original colour!

How does this compare to what Photon of Scoopex uses for his Assem tutorial series? th-cam.com/video/p83QUZ1-P10/w-d-xo.html

Awsome! Hare Krishna

Sigh... behind every computer related failure, it's always the management. Even on the console side, Sega lost because of their management. We probably would have better consoles if Sega let their fabulous teams do what they did best. It sounds a lot like that for the Commodore.

Cool, my 1200 having an indivision + terriflefire 060 uses 2.03 amps at 5.5v if the voltage is lowered it will reset when formating floppys very interesting video need to take this into account when building my new PSU.

Everytime i load the Commodore 64 games from the tapes, i always love to watch the loading screens and listen to the loading tunes - such as Ocean Loader 1-5. And let's not forget the legendary loading sounds of NovaLoad from U.S. Gold, Ocean, Imagine and Elite 😺👍🕹️. Greetings from Vantaa, Finland 🇫🇮.

Greetings 😺👍🕹️! First of all... COMMODORE 64 FOREVER 😺👍🕹️! Press play on tape LOAD "*",8,1 AMIGA FOREVER 😺👍🕹️! Insert disk 💾 2 And Second of all, a new retrospective channel subscriber / longtime retro gamer 🕹️ from Vantaa, Finland 🇫🇮. Thank you 😸😺👍🕹️.

There's a new and official sequel coming called Project X: Light Years. Check it out.

Putin should have played level 8 before he started on ukraine

The original developers of the AMIGA were responsible for making the best 8bit computer , the ATARI line of computers . They were the ones that were pushing for a major change in home computer technology . A graphics workstation that didn't need a graphics card .

The reason it crashed when you put the mod at the start is that it would have been trying to start executing the code from where the mod was in memory. Even though it's a data section code execution starts in the first section.

Which reminds me I need to get my next Amiga video done. :)

...and lo, Dave said let there be music, and there was music and Dave saw that it was good.

As a noob , i would change code and have problems because some of my data was after my subs. Then i would get odd adress data reads or just offsets changing etc. Btw im still a noob.😂 Thanks for videos, there awesome fun.

Back in the day I did find the Devpac 3 integrated editor did have a few bugs at least in the relatively early version I had, so after a while started using another editor (think I used a coverdisk version of CygnusEd) and assembled on the command line (GenAm). Regarding blitter, on "old school" Amiga hardware while display was being drawn there are eight memory access "slots" per low resolution pixel and every bitplane uses one slot, so using 6 bitplanes there are only two slots spare. The blitter has priority over the CPU for a certain number of memory accesses then the blitter yields (if you don't set the "blitter nasty" flag), something like three blitter accesses to one CPU access so when code is in chip memory, the graphics are being drawn and the blitter is active the CPU is REALLY slowed down. There are gaps between drawing each line of the display and a larger game between the last and first line which is why a lot of game/demo code has the copper trigger an interrupt near the end of the display and code triggers off that. Anyway, small blits can often get done before a 68000 CPU is even able fetch and execute the next instruction. With all the various advantages of the 68020 including higher clock speed, and caches this is no longer true.

Great series! Hope to see more like this.

i get a total of 4 frames lag, or 66.68 ms (at 60FPS) through my OSSC and LCD TV combined

How frustrating to discover after all those changes that it was the *assembler* that was the problem!

Sanity check - Stub out macro, make artifacts come back.

Two things: "clr" is a bad idea on 68000 but good on 68020+. If you were so inclined you could just mark all the code as residing in chipram and turn on blitternasty - that would probably have fixed it without any wait inserts. I don't know if that would have made it too slow for a pure 68000 though.

The 68000 had also been used in the first grouping of Lisa and Mac Computers as well from the Lisa to the Mac Plus.

I must admit the Amiga Blitter has been my nemesis on more than a few occasions. These videos contain some really useful information that most people have to learn the hard way. The way you are explaining things and showing your thought process is fantastic. Well done.

Awesome job fixing that. Is it possible the problem is exacerbated because the 68000 in an A500 without fast RAM would slow down until the bltter has finished cycle stealing?

So far, I'm tremendously enjoying this series. Don't own an Amiga, never owned one either. Never really programmed in assembler either, apart from some assignments back at university. But all of this, it just clicks in my brain. You explain it very well.

A very happy October 3rd to you, Senor Poo! I do hope you are in excellent fettle on this splendidly delightful Thursday eve.

9v efective. +-15v peak. Don't worry its correct. 9v*sqrt(2)=12,72v That depend of your grid. I think you don't know nothing of electronics.

I love the System, until today. But Commodore produced the system only without the support :-(, The needed to support productivity software company's to port their Software to the Amiga, the Operating System was amazing, and still have some unique functions like Datatypes. But the Amiga is still alive, I think it will never decease. If I get Milionaer, I would give the system again a push, but as a Raspberry like System to start. And thaaaaaaaaaaaaaaaaaan :-)

btst.b silently takes the value modulo 8. And most assemblers wont even complain (not cool).