phoenixdownita

In case you missed it an interesting book on how to make your own CPUs all the way to how to code for it. https://www.nand2tetris.org/course Yeah the assembly syntax they devise is a little different but still a very good reading, it even has its own HDL and set of tools (pity they require java but I can see why that is the case). NOTE: it does not tell you how to build a NAND or a D-type flip-flop from more basic constructs but those are the only basic building blocks it considers "axioms" and there's plenty of docs on how to make them (if you are interested a D-Type flip-flop NAND only implementation is documented on wikipedia at https://en.wikipedia.org/wiki/Flip-flop_(electronics)#/media/File:Edge_triggered_D_flip_flop.svg as well as the basic CMOS NAND gate at https://en.wikipedia.org/wiki/File:CMOS_NAND.svg ). It's funny how many function they managed to get into the ALU with very simple in/out conditioning.

I don't really think so ... on top of my head there's no single racing game I would recommend that is on N64 aside Mario Kart (but racing per se it is not), for PS1 I can for sure recommend the 4 Ridge Racers (I love every single one of them, with RRR being my preferred one) as well as GT and GT2.

How's the hi-res for Genny implemented? odd/even line at 60-ish hz with the other half black/dark-grey as it may be? Does it just cut luminosity (maybe you compensate for it) or can one see the "original flicker"?

Right, they've got to at least add 1 frame of delay to buffer the original screen and rotate it!

....guy so belligerent.... but he did call the scale-with-iPods Amico.

Blast! or Boom! or both formats for the console(s)?

Holy crap, that is something else! https://time.com/collection/best-inventions-2019/5733094/analogue-mega-sg/

Funny how the tables have turned with modern top-shelf consoles being x86 (well x64) based (Switch excluded) as well as many many recent coin-op based machines. I'm waiting for the raise of the ARM (like the Switch), it's bound to happen, just a matter of time ... now they have the A76/A77 class cores that start to be competitive in a server market [especially when price is factored in] it shouldn't be too long, give it a couple of generations (maybe 3Y) to see if the tide starts turning. It's interesting as history repeats itself with the rise of the little: mainframe laughed at the x86 CPUs not so much now, and Intel kind of laughed at ARM and their embedded/mobile market ... not so much now. A way ARM Holding could screw this up if the "open-source" RISC-V takes off .... but open sourcing HW design does not per se have the same "immediate" effect as open sourcing SW. We shall see.

If it comes in dongle format (blast!) and they are arcade versions I can see me picking one up. I hope they would sign up Konami as well and I mean for the likes of circus charlie, pooyan, amidar, scramble, yie ar kung-fu, road fighter, time pilot, gyruss, gradius, green beret, contra ... and this just arcade < 1987 so much to go off of https://en.wikipedia.org/wiki/List_of_Konami_games#1977–1989 For Konami I wouldn't mind a blast! unit that is MSX centric: antartic adventure, penguin adventure, cabbage patch kinds (but really adventure land), castlevania ... https://en.wikipedia.org/wiki/List_of_Konami_games#MSX but I reckon the MSX themed one may be way too niche.

What's stopping you from just give it a go? Instead of taking a 6502 detour which may or may not have anything to do with building your own 3D engine, just try something out, leave the JRISC on the side for the time being and focus on the 68K to get a feel for it. Earlier you stated that in order to build something 3D first you want to build something 2D which makes me think you have no experience on either front, as such the major obstacle is not in how many books you read but in starting something and getting to learn little by little. It's fine if you read a couple of books cover to cover to get a feeling for what it takes but there's absolutely nothing like doing the real thing. If you really want to play with 6502 assembly "the easy way" you can always use one of the online resources like http://www.6502asm.com/ (note you can find a whole Atari ST emu written in JS https://estyjs.azurewebsites.net/ ). I don't like advertisement but like Nike says "Just Do It."

http://15khz.wikidot.com/ https://docs.google.com/spreadsheets/d/1ZvZycoKawBLtK_k7wNFXUwgMD9nMNRfTBbM8T57ZzUY/ (from http://eab.abime.net/showthread.php?t=85693 ) If you have a solution for light gun games what's preventing you from using it for all of your twitch gaming needs?

Cause I don't think in DAC mode the analogue consoles output an HDMI signal at all, it's likely some custom 240p signal (and some form of 480i for the MD games that used interlace, assuming that's how they did it) that is proprietary between the MegaSg/MegaNt and the DAC. Note that they had to distribute updated firmwares for both to support the DAC and I presume that was for more than just enable the non 60Hz refresh rate native to each core. I am sure the signal will be analyzed, dissected and kevtris be put on the spot for "not supporting HDMI->SD-analog for all possible devices a random person on the planet may/may not have" ... ahhh! other than that I think he did the right thing and target only his products that he controls fully and can design custom protocol onto to satisfy whatever needs he has for the conversion to be successful.

https://en.wikipedia.org/wiki/SCART#JP-21 to go SCART -> JP21 (for the XRGB-mini for example) https://retrogamingcables.co.uk/european-scart-to-japanese-scart-converter (you don't need to convert between the 2 unless you buy a JP21 cable [usually only sold in Japan] or a unit that wants a JP21 input like the XRGB-mini)

How do you beat a monitor? I thought you just stare at it but hey ...

Sorry I forgot it was you we were talking about, for me if I last 10 minutes it's a record so switching games is ... well ... important.

I hear you and by now many chips have been decapped and gave up their most intimate secrets. I like how many many arcade locked microcontrollers have been defeated by decapping, nail polish and UV light to get their key/roms dumped. Kevtris has done tons of work in the reverse engineering department, I think once he showed us an x-ray machine or something (I know I know it's used for solder joint analysis but that's not all you can do with it right?) If memory serves he was the first with a zero lag HDMI device to simulate a console and he did it by slowing down/speeding up every so slightly the base clock of the console in question .... pure genius. EDIT: ... and thanks a lot for the FX CAST core on MiSTer (haven't had a chance to try it yet but I heard great things about it)

Hope you plan on sitting close to it: https://www.amazon.com/gp/customer-reviews/R1FA56AS6TK7YP/ref=cm_cr_dp_d_rvw_ttl?ie=UTF8&ASIN=B07MZBVNXM

So does digital HW design, they are connecting AND/OR/NOT gates (or if you prefer any complete subset of boolean operators of your liking) plus registers (flip flop if you prefer) but the point stands, just because you understand boolean logic doesn't mean you can program SW or design hardware via HDL, it's a basic block for it but by far not all of it. When it comes to analog HW it's a different game but I bet Kevtris designed the analog section of the DAC as well. As I said "writing a poem vs the ingredients on the back of pack of crackers" both deal with words but they ain't the same.

Pretty sure he's also designed the PCB and everything related to it (choice, values, and placement of components etc.... etc...). If you mean he doesn't hand solder the components himself ... well then sure I hope he doesn't, his skills are more valuable in designing and implementing new cores/products however he sees fit. NOTE: writing in VHDL/Verilog bears only a superficial semblance to write SW (Verilog being more similar in that sense) but that's it, it would be like comparing writing a poem vs the ingredients on the back of pack of crackers .... not the same skill, not the same intent! Kevin is their HW guy in the more complete sense of the term, and their SW guy as I believe he develops also the SW that runs on the microcontroller as well as the console (to render the UI/menu etc...).

Out of curiosity, did you actually try to use rB+ just to get your feet wet: For the 800 you should be able to just fire off Altirra and go. I guess I was asking aside from reading/want-to-read have you tried actual programming the systems? If not what's the hold-up? Keep in mind your first few attempts will amount to a whole lot of "nothing" and that's expected.

Yup, following the bread crumbs: https://en.wikipedia.org/wiki/Ski_Park_Manager https://en.wikipedia.org/wiki/Lankhor https://www.lankhor.net/ https://www.lankhor.net/personnel.php https://www.lankhor.net/personnel.php?menu=fiche&ident=10

Bought something like: and now I don't have to unplug everything just to play the thing, managed to get to Galaga level 9 ... and this time around the "tractor beam" ships changed color just right ... I think for 15USD+taxes I'll keep it (the small HDMI M-F extenders would come in handy anyway), d-pad/buttons still bad but likely I won't "wear it out" like @negative1 They should have released this one last year, that would have brought AtGames so much more goodwill than the NES fuckaroo!

Good news: I got it at the local Fred Meyer for 15US$ (they are marked as 50% off albeit even during Xmas they were "constantly discounted" at 19.99 instead of the 29.99 "full price MSRP") Good news: it works Good news: they are arcade versions Good news: the power from each of my TVs USB seems enough to run it Bad news: none of my TVs has enough clearance to use its HDMI input when anything else is plugged on any adjacent HDMI input .... this thing is just too wide for each of 3 of my TVs so I always have to unplug adjacent HDMI cables .... what a shame! Bad news: Galaga "tractor beam" enemies do not change from green to blue ... they stay green with the detail going purple (as expected) ... so weird! This one has me stumped! So so news: it gets a little hot, so I am not sure this can just be plugged and forgotten like you would say a Google Chromecast So so news: the USB cable is short (it's a trend I've seen elsewhere .... not that I like it mind you) So so news: no AC adapter (it's a trend I've seen elsewhere .... not that I like it mind you) So so news: the dpad could definitely have been better I am not sure I want to keep it, disconnecting a few cables before each play-session kind of ruins it for me, the weird Galaga issue may well be one off (but it does throw off the gameplay as they stand out a lot less, so told I am not @negative1 and I am happy when I beat 6 or 7 stages) .... Will see what I make of it! NOTE: only tested Galaga, Dig Dug, Pac Man and Mappy.

https://web.archive.org/web/20160201021136/http://digitalx.org/cue-sheet/syntax/#track try to open the CUE file with a text editor and change CDI/2352 to MODE2/2352 and see if it works. I spot checked a couple of my CUE/BIN (and some CUE/ISO even) and that's how they are declared. Example: FILE "Creature Shock Disc 1 of 2 (CD-i).BIN" BINARY TRACK 01 MODE2/2352 INDEX 01 00:00:00 EDIT: also found this tidbit of info related to CD-i ready discs: CD-i discs aren't copy protected and you're not the first one who want to burn an image of their CD-i game to try with the CD-i emulator. Unfortunately, the Green Book has a few obscure formats, like CD-i Ready. CD-i Ready is a compact disc format based on the CD-i format. CD-i format and CD-i Ready format use different techniques to get audio CD players to skip over the CD-i software and data. CD-i Ready places the software and data in the pregap of Track 1. Standard CD-i format places the software and data into ordinary tracks, but omits the tracks from the table of contents. In this way SPC Vision was able to press the music trakcs of their videogames as an audio CD on the same CD-i. In an audio CD player, the music would be played just as a normal audio CD. In a CD-i player, the game would start. Excellent idea! The only downside now is these discs are very hard to copy. Not working? The only thing to think of is to try another computer and CD-ROM drive if you have access to other PC tech. Then you might find a drive that works. If you're using Windows 98 it might be worth inserting, ejecting and inserting the CD again! On the first run the CD is recognised as an AudioCD then after you eject/insert it doesn't. Crazy I know!Most CD-i Ready discs can be copied using CloneCD. Sometimes small errors still occur, but I've never had a non-working copy from CloneCD. Though the problem is whether your CD/DVD drive is capable of reading CD-i Ready discs correctly. If your drive can't handle the discs, even CloneCD will fail. Known CD-i ready discs are: -A Christmas Songbook -Accelerator -Alien Gate -Beyond Limits -Escape -Lucky Luke -Louis Armstrong -Dark Fables of Aesop -More Dark Fables of Aesop -Mozart -Opera Imaginaire -Pavarotti -Steel Machine -The Apprentice -Dimo's Quest -The Worlds of... On this special type of CD-i the CD-i data track is stored in pause sectors preceeding track 1. That way it's possible to play a CD-i (containing both audio and data) either in a CD audio or a CD-i player. In fact that most burning tools investigate the content of a CD by using the TOC (Table of Contents), they won't recognize the hidden data track. Get a trial version of CloneCD here: http://www.slysoft.com Also, if you know more CD-i Ready discs, please post them below!

Not sure what to say, CUE/BIN files are Mode2/2352 which is pretty standard, there's a couple of titles that are harder to make work (Apprentice being one of them, needs the original DiscJuggler/CloneCD) but the vast majority burns just fine on real Windows + ImgBurn.