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Alas that the j-core kind of dried up development. There was a roadmap for this open super-h compatible core up to sh4 then a 64 bit version. Kind of tied to ke
by jauntywundrkind 3y ago
Alas that the j-core kind of dried up development. There was a roadmap for this open super-h compatible core up to sh4 then a 64 bit version. Kind of tied to key patents expiring.
There's a j32 & j32smp core now, but I'm not sure where-ish that would slot into the old roadmap, and it seems like development isnt active. https://j-core.org/roadmap.html https://j-core.org/roadmap.html
Meanwhile support keeps bitrotting. Someone managed to get a Debian port going in 2015, & it sounded semi adventurous to make go. https://lwn.net/Articles/647636/ https://lwn.net/Articles/647636/
Chipmaker Renesas - who kind of was super-h for a while - meanwhile seems to be starting down the RISC-V path, alongside a variety of ARM cores & their own (small microcontrollers) RL78 architecture that I don't know much about. https://www.cnx-software.com/news/renesas/ https://www.cnx-software.com/news/renesas/
- kjs3 3y agoYeah, shame J-core didn't pan out. SH4 is such an interesting chip with some minimal vector facilities.
- wolfspider 3y agoWas really looking forward to the j-core project and got into SH4 emulating the Dreamcast port of NetBSD which is currently available for the latest version which is 9.3 I believe. http://wiki.netbsd.org/ports/dreamcast/ http://wiki.netbsd.org/ports/dreamcast/ GXemul is what I used at the time. https://gavare.se/gxemul/gxemul-stable/doc/machine_dreamcast.html https://gavare.se/gxemul/gxemul-stable/doc/machine_dreamcast... There are also lots of interesting things going on with NAOMI emulation on the gaming side. All of it is very hackable and j-core would have made a great addition to that.
- cbmuser 3y agoI’m maintaining Debian for sh4 and I’m also the kernel maintainer for SuperH. If you’re interested in SuperH Linux, feel free to join #linux-sh on Libera IRC.