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Thread: Can we expect real Sega 32X reproduction consoles with cd hardware yet?

  1. #1
    Nameless One vexatious's Avatar
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    Default Can we expect real Sega 32X reproduction consoles with cd hardware yet?

    Quote from Wikipedia : https://en.wikipedia.org/wiki/SuperH#J_Core

    The last of the SH-2 patents expired in 2014. At LinuxCon Japan 2015, j-core developers presented a cleanroom reimplemention of the SH-2 ISA with extensions (known as the "J2 core" due to the unexpired trademarks).[5][6] Subsequently, a design walkthrough was presented at ELC 2016.
    Quote from Wikipedia : https://en.wikipedia.org/wiki/SuperH#J_Core
    Several features of SuperH have been cited as motivations for designing new cores based on this architecture:[5]

    High code density compared to other 32-bit RISC ISAs such as ARM or MIPS[8] important for cache and memory bandwidth performance
    Existing compiler and operating system support (Linux, Windows Embedded, QNX[6])
    Extremely low ASIC fabrication costs now that the patents are expiring (around US$0.03 for a J2 dual core core on TSMC's 180 nm process).
    Patent and royalty free (BSD licensed) implementation
    Full and vibrant community support
    Availability of low cost hardware development platform for zero cost FPGA tools
    CPU and SoC RTL generation and integration tools, producing FPGA and ASIC portable RTL and documentation
    Clean, modern design with open source design, generation, simulation and verification environment
    As of 2015, many of the original patents for the SuperH architecture are expiring and the SH2 CPU has been reimplemented as open source hardware under the name J2.
    So basically the open source SH2 is known as J2, but it isn't exactly the same since it has extensions and improvements.

    Could we still expect an exact clone original, of the original sh2?

    Having a SH2 based debian (or other) Linux distribution would make things easier. Compiling SH2 code from a 4 ghz hexa-core J2 might be kind of easier; unless it breaks 100% perfect dual SH2 with 4kb cache compatibility.

  2. #2
    Hedgehog-in-Training Hedgehog-in-Training Lycanphoenix's Avatar
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    Well, we can have software-compatible clones for sure. But in order to make a replica 32X, it would need to be designed entirely using patent-free components, and preferably to be as affordable as possible. Even then, it might not have full compatibility, but it should be compatible enough for most of the existing games and any homebrew development.

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    Hedgehog-in-Training Hedgehog-in-TrainingSports Talker troopa jr's Avatar
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    i would like to see a sega neptune replica,

  4. #4
    Master of Shinobi
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    Okay, you have a reproduction of the SH2. Now make a repro of the 5 or 6 other chips in the console.

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    Mastering your Systems Shining Hero TmEE's Avatar
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    CPUs aren't a problem, all the unknown/underdocumented stuff is.
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    I think you would be better off reproducing it on an FPGA. Start with the source code from GENS (or whatever emulator people are using now) and start converting the code to Verilog. Better yet talk to Analogue about incorporating it into the Mega Sg. Probably only a few years of work to get it going...

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    AKA Mister Xiado WCPO Agent Raijin Z's Avatar
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    I'd rather see Genesis clones without garbage sound become standard, first.
    - Where it's always 1992 (or so).
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    Master of Shinobi Mega Drive Bowlsey's Avatar
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    Quote Originally Posted by Raijin Z View Post
    I'd rather see Genesis clones without garbage sound become standard, first.
    Good point. Why does the sound suffer so much on Mega Drive clone consoles? The embarrassing thing is that people who don't own or know about the original hardware, like kids and casual gamers, just assume that the Mega Drive sounded like shit.

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    Death Bringer Raging in the Streets Black_Tiger's Avatar
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    Quote Originally Posted by Mega Drive Bowlsey View Post
    Good point. Why does the sound suffer so much on Mega Drive clone consoles? The embarrassing thing is that people who don't own or know about the original hardware, like kids and casual gamers, just assume that the Mega Drive sounded like shit.
    To be fair, lots of Nintendo/console war enthusiasts who grew up with 16-bit consoles also believe that Genesis sound hurts their ears, while also being immune to the problems and inconsistencies of SNES sound.
    Quote Originally Posted by year2kill06
    everyone knows nintendo is far way cooler than sega just face it nintendo has more better games and originals

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    Master of Shinobi Mega Drive Bowlsey's Avatar
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    Quote Originally Posted by Black_Tiger View Post
    To be fair, lots of Nintendo/console war enthusiasts who grew up with 16-bit consoles also believe that Genesis sound hurts their ears, while also being immune to the problems and inconsistencies of SNES sound.
    Yes but those old school Nintendo fanboys can usually be split evenly into two camps. They're either blatantly lying, or they're completely tone deaf. In some cases it's a combination of the two.

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    urusei yatsura Master of Shinobi lumclaw's Avatar
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    Quote Originally Posted by Mega Drive Bowlsey View Post
    Yes but those old school Nintendo fanboys can usually be split evenly into two camps. They're either blatantly lying, or they're completely tone deaf. In some cases it's a combination of the two.
    The rest of the world doesn't understand the extent of the dominion over consoles in the United States that Nintendo held between 1986~1991.
    That much of the gaming populace genuinely was unaware of any alternatives, and had no real choice in becoming fanboys.

    As much as Sega succeeded in disrupting the worst of it, they struggled with making games for the masses other than Sonic.

    To be fair... the games that in my opinion make the best use of Megadrive audio, were more niche than their SNES rivals.
    Games like Burning Force likely didn't sell a fraction of games like Chrono Trigger.
    Last edited by lumclaw; 01-23-2019 at 08:31 PM.

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    Framemeister Expert Hedgehog-in-TrainingOutrunner Tower of Power's Avatar
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    There's not a ton of interest in the 32X in the homebrew community, full stop. Makes developing a clone console or even an FPGA core less likely. All it would take is one dedicated coder, so maybe some day.

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    Quote Originally Posted by Tower of Power View Post
    There's not a ton of interest in the 32X in the homebrew community, full stop. Makes developing a clone console or even an FPGA core less likely. All it would take is one dedicated coder, so maybe some day.
    KevTris is the guy who could do it. Whether or not he would want to, I have no idea.

  14. #14
    Master of Shinobi Mega Drive Bowlsey's Avatar
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    Quote Originally Posted by lumclaw View Post
    The rest of the world doesn't understand the extent of the dominion over consoles in the United States that Nintendo held between 1986~1991.
    That much of the gaming populace genuinely was unaware of any alternatives, and had no real choice in becoming fanboys.

    As much as Sega succeeded in disrupting the worst of it, they struggled with making games for the masses other than Sonic.

    To be fair... the games that in my opinion make the best use of Megadrive audio, were more niche than their SNES rivals.
    Games like Burning Force likely didn't sell a fraction of games like Chrono Trigger.
    I wouldn't call Revenge of Shinobi, Shinobi III, the Streets of Rage trilogy, the Strike trilogy, Rocket Knight Adventures, Thunderforce IV or the Sonic games niche. All those titles were mainstream games for the Mega Drive with wide appeal, and all those games had absolutely incredible music. We're not talking hidden gems here, we're talking about titles that anybody involved in 16-bit gaming at the time would surely have been aware of regardless of which platform they owned. The only explanation for the fact that the Mega Drive still to this day has a ludicrous reputation for having bad audio is down to blatant lies, willful ignorance and shitty clone consoles.
    Last edited by Mega Drive Bowlsey; 01-24-2019 at 04:31 AM.

  15. #15
    urusei yatsura Master of Shinobi lumclaw's Avatar
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    I suppose recognition of those games goes to show the Mega Drive had a greater lasting cultural impact, than the Genesis did.

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