Friday, 2020-02-14

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xobsI couldn't fit in privilege level stuff such as exception and interrupt delegation or atomic instructions. You could do it, but the emulator layer would be rather large.00:03
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tntxobs: but those are handled in sw emulation anyway right they're not in HW in the Vex ?07:43
daveshahAtomics are mostly emulated, there might be some hardware support in the cache too07:45
xobstnt: they can be, depending on the configuration.  For example, the linux CSR plugin has things like stvec, sepc, scause, medeleg, and mideleg: https://github.com/SpinalHDL/VexRiscv/blob/master/src/main/scala/vexriscv/plugin/CsrPlugin.scala#L85-L12207:46
tpbTitle: VexRiscv/CsrPlugin.scala at master · SpinalHDL/VexRiscv · GitHub (at github.com)07:46
xobsThe only thing Fomu has is satp.  But the rest can be emulated.07:46
tntxobs: Where can I find the scala core config you used ?07:47
xobstnt: https://github.com/xobs/VexRiscv-verilog/blob/master/src/main/scala/vexriscv/GenFomu.scala07:47
tpbTitle: VexRiscv-verilog/GenFomu.scala at master · xobs/VexRiscv-verilog · GitHub (at github.com)07:47
tnttx !07:48
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