Sunday, 2021-10-03

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openpowerbot[slack] <Benjamin Herrenschmidt> I just find it hard to get my head around those kind of HDL-generator language13:23
openpowerbot[slack] <Benjamin Herrenschmidt> for some obscure reason, despite having mostly a SW background, I find that I reason better with a "pure" HDL like verilog of vhdl13:24
* openpowerbot [mattermost] <lkcl> waves hello to henriok16:54
openpowerbot[mattermost] <lkcl> Ben: i hear ya.  VHDL is, fascinatingly, based on Ada, and is near gate-level in its concepts.  no coincidence that A2I chose it for high-performance and expression of all ALUs in barely-above-gate-level form16:55
openpowerbot[mattermost] <lkcl> likewise as a software engineer, i found that nmigen was almost impossible to relate to gate-level, and for about 5 months i had to use yosys "read_ilang file.il; show top" on every single modification.16:56
openpowerbot[mattermost] <lkcl> the same trick can be deployed with verilog ("read_verilog")16:56
openpowerbot[mattermost] <lkcl> but for microwatt you'd have to go through a bit of hassle, jump through some hoops (compile with ghdl first then use yosys-ghdl-plugin to "extract" the netlist), before being able to show it16:57
openpowerbot[mattermost] <lkcl> then at the gate level, it's all the same :)16:57

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