From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 7524 invoked from network); 13 Feb 2021 02:31:39 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 13 Feb 2021 02:31:39 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id EC2979C0A9; Sat, 13 Feb 2021 12:31:37 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 6D0AF9503C; Sat, 13 Feb 2021 12:31:04 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="MKnPXcJu"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 0F0E09503C; Sat, 13 Feb 2021 12:31:00 +1000 (AEST) Received: from mail-lf1-f53.google.com (mail-lf1-f53.google.com [209.85.167.53]) by minnie.tuhs.org (Postfix) with ESMTPS id 187CB94F1B for ; Sat, 13 Feb 2021 12:30:59 +1000 (AEST) Received: by mail-lf1-f53.google.com with SMTP id p21so2151277lfu.11 for ; Fri, 12 Feb 2021 18:30:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=z8UoGq5aImiZg1n0kJKOmSYvur1VpqSx8aDpH4Sd3ZI=; b=MKnPXcJutdpryQqv+o65nKWzGGIC9yWfppHSB9g0ddNf0OZHsmFgkWQOkxsFxb1SeB ewn3pAXqFfbsFVOb5zeMxZ38v3rHUy89ZJixmYU8cZsg01prx40c7WHxpT8h9tOEkUcb X1AKp9Zfs11EdzKCKPa/8YscBGtTN3PFfdAcrBkiU/Tl2WIcuiBhrKXqaIZ7CpVuNWUk wmm4Jz1FKFbUSwG+A3jQDOZ9t1Ao62yej9tNUvIkgBYFoMoa2AD6nZce6fvJiS6zPBML Q7DXDzB1pZDrigS08ZcX+dBI3A+wxuC+zWihM4wKEAR1Up/gPqtQXQ9HNBPtkyCJACmW sZLw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=z8UoGq5aImiZg1n0kJKOmSYvur1VpqSx8aDpH4Sd3ZI=; b=AZQRKXjIdivHE1xpOSsUZFXVHXbwbmxkt8qYWc35Gt1Py6+SnJtxdtFDcTPJEta12C VAfBSOALZ01yPU2gBM23KlAFTOTzYItVgF/pet/NvUUrIIwykqhK3btr1rl0rqcpRY74 PDn+JLKCDkVSGUDI1bEtN9QmGbBruHGh8tp6fm3LmMkSjjkgUvyrANrQW0udxaWy18CT VI3aXeLb6emEgWv4sD8/3hxSk0qn3XCpwVu6UfxBkET6uIKUVM8gLSVHnrdMo65RPZyz n88XIgoj5L87+8VQnG7GKX24T15tjQteZEUWNJeYBtTD5UqXNMs7nnLfQv3gFCFkxgkH /I2A== X-Gm-Message-State: AOAM5304yWNNKM22V9lq/iSYPEwFo9GLOvQva9AIgH+xdbN0YJ9c+K5/ D4BFpeMMdjmw3q8OXbYpLUUbFsfb2F4f79gRANuCN/yE7Ag= X-Google-Smtp-Source: ABdhPJzE6irxDqH5GzTtPzma1fa9h3kMxVdFAvRODJSz9SC6uB431n+ZKoUbLmauprLrpQ2NClknXrJHP5g8+DM/r/M= X-Received: by 2002:a05:6512:3190:: with SMTP id i16mr3088249lfe.200.1613183457329; Fri, 12 Feb 2021 18:30:57 -0800 (PST) MIME-Version: 1.0 References: <0F0B9BFC06289346B88512B91E55670D300E@EXCHANGE> In-Reply-To: <0F0B9BFC06289346B88512B91E55670D300E@EXCHANGE> From: Gregg Levine Date: Fri, 12 Feb 2021 21:30:21 -0500 Message-ID: To: Jason Stevens , The Eunuchs Hysterical Society Content-Type: text/plain; charset="UTF-8" Subject: Re: [TUHS] 68k prototypes & microcode X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" An amazing idea. ----- Gregg C Levine gregg.drwho8@gmail.com "This signature fought the Time Wars, time and again." On Fri, Feb 12, 2021 at 7:51 PM Jason Stevens wrote: > > You might find this interesting > > https://twitter.com/i/status/1320767372853190659 > > > It's a pi (arm) running Musashi a 68000 core, but using voltage buffers it's > plugged into the 68000 socket of an Amiga! > > You can find more info on their github: > > https://github.com/captain-amygdala/pistorm > > > Maybe we are at the point where numerous cheap CPU's can eliminate FPGA's? > > -----Original Message----- > From: Michael Parson [SMTP:mparson@bl.org] > Sent: Friday, February 05, 2021 10:43 PM > To: The Eunuchs Hysterical Society > Subject: Re: [TUHS] 68k prototypes & microcode > > On 2021-02-04 16:47, Henry Bent wrote: > > On Thu, Feb 4, 2021, 17:40 Adam Thornton > wrote: > > > >> I'm probably Stockholm Syndrommed about 6502. It's what I grew > up on, > >> and > >> I still like it a great deal. Admittedly register-starved (well, > > >> unless > >> you consider the zero page a whole page of registers), > but...simple, > >> easy > >> to fit in your head, kinda wonderful. > >> > >> I'd love a 64-bit 6502-alike (but I'd probably give it more than > three > >> registers). I mean given how little silicon (or how few FPGA > gates) a > >> reasonable version of that would take, might as well include > 65C02 and > >> 65816 cores in there too with some sort of mode-switching > instruction. > >> Wouldn't a 6502ish with 64-bit wordsize and a 64-bit address bus > be > >> fun? > >> Throw in an onboard MMU and FPU too, I suppose, and then you > could > >> have a > >> real system on it. > >> > >> > > Sounds like a perfect project for an FPGA. If there's already a > 6502 > > implementation out there, converting to 64 bit should be fairly > easy. > > There are FPGA implementations of the 6502 out there. If you've not > seen > it, check out the MiSTer[0] project, FPGA implementations of a LOT > of > computers, going back as far as the EDSAC, PDP-1, a LOT of 8, 16, > and 32 > bit systems from the 70s and 80s along with gaming consoles from the > 70s > and 80s. > > Keeping this semi-TUHS related, one guy[1] has even implemented a > Sparc 32m[2] (I think maybe an SS10), which boots SunOS 4, 5, Linux, > NetBSD, and even the Sparc version of NeXTSTEP, but it's not part of > the > "official" MiSTer bits (yet?). > > -- > Michael Parson > Pflugerville, TX > KF5LGQ > > [0] https://github.com/MiSTer-devel/Main_MiSTer/wiki > [1] https://temlib.org/site/ > [2] https://temlib.org/pub/mister/SS/