MiSTer FPGA Forum

I wouldn't get too carried away just yet. It still doesn't have enough resources to handle Nintendo DS which was confirmed by Robert. It's worth pointing out also that after a certain point the need for cycle accurate emulation diminishes because everyone stopped coding close to the hardware... dreamcast and up probably don't need cycle accurate C...

Perhaps not enough bypass capacitance or some sort of ground loop issue without a local regulator on the board.

Thinking of making a dual SD ram setup to fit into a portable laptop like case... so sounds like I'll run into that.

@Grabulosaure "but horrendeous power draw." Of course ;-) no holds barred for Cray and related companies. Of course by the time the supersparc-II came out ECL couldn't keep up and wasn't cost effective at all anymore. I have a mister now and a 128MB ram module so I need to finally get this core running myself. I want to try running my gen...

Unfortunately it looks like the cheaper Ultrascale boards lack PL ram.... similar to the Zync which has soc ram + the soldered FPGA ram. It costs a couple hundred more to get ALINX AXU5EV-E which has PL and PS ram and a reasonble number of LUTs. Also thats about 117k LUTs maybe a bit more could fit than the De10-nano but probably not much.... if yo...

SparcV7 is for the Cypress 7C601 chipset? With more recent FPGAs eval boards costing 200$€ to 500€$ it would be possible to be at least as fast as original hardware (100-200MHz). I'd like to test on a small Xilinx UltraScale+ board. Not necessarily... Sparc v7 had many implementations just like V8. It should mostly just be V8 sans hardware mul/div...

For sound you'd probably want to implement the Crystal 4231A codec... DBRI isn't well supported outside solaris. And the Sun4c audio is monaural only. In any case it won't be spectacular... and might even make sense to just implemeny something entirely different for NetBSD so it could get proper modern audio and maybe fit it in fewer luts. The best...

SS20 seems to work with NetBSD with 3 CPUs. This is quite complex code and difficult to validate. Linux hardy ever supported multicore on these computers. I would like to be able to run multicore Solaris. IIRC, the debug monitor (/soft/debugarm) is currently needed to properly activate SMP mode. There is some talk on the NetBSD list about needing ...

I noticed that it shows an ethernet card, le0. I'm not sure what that is about as the earlier threads seemed to indicate that it was serial-only. If any of you are aware of the status of the network card I'd appreciate a reply. Note that just because the hardware is in the FPGA doesn't mean its wired to anything..... on the other board uses for TE...

Yes I know but the SDRAM has lower latency than the ARM memory which has to make a few more hops...still it may not matter too much if there is at least some cache implemented in the core. Yes the mister board is quite good, I just ordered one. My only point about the ethernet was, if the mister side of things implements a fake ethernet in software...

OpenBSD as you mention is no longer updated, even though I found it a bit more ergonomic. NetBSD, acutally gets updates on sparc, and has better hardware support in general, so as hardware is added to the sparcstation FPGA image, NetBSD is your best bet. You can use the pkgin package manager to get a better experience than attempting to build softw...

So here's a thought... Sparcstations could have up to 512MB ram on the SS20 (or 7x64MB + 8MB VSIMM to enable onboard graphics), there was also an nvsimm slot which could take another ram card out of the picture to provide nonvolatile memory to accelerate NFS etc... , (1GB on the Hyperstation 30), I was reading that nobody had an excuse for more tha...