HLS SystemC - C++ classes for event driven simulation. Kind of an embedded dsl verilog ish systemverilog - https://github.com/zachjs/sv2v/ systemverilgo to verilog converter What is AXI

https://en.wikipedia.org/wiki/Universal_Verification_Methodology - verification language

Bluespec Silicon Compiler - what is this?

Circt - llvm project

Verilog

Verilog is a bit dual brained. In one sense it is a hardware design language. In this sense it’s almost just a netlist, aka a graph data structure describing a circuit. Each module can has ports which are wired up internally. Internal instantiations of modules are named.

module mynot(input a, output b);
    nand U1(b,a,a); // output, input, input.
endmodule;

In another sense it is a behavioral specification language describing parallel running tasks.

In another sense it a test bench language.

It is kind of a pile of hot garbage.

The delay annotation for 10 ticks is #10. I feel like this should have a semicolon (kind of a sleep statement), but it does not.

assign statements are a nice way to describe combinational logic.

icarus verilog is an easy enough to use simulator. https://iverilog.fandom.com/wiki/Main_Page https://iverilog.fandom.com/wiki/Getting_Started.

iverilog myfile.v
./a.out

Defining regular assertions https://stackoverflow.com/questions/13904794/assert-statement-in-verilog Maybe a better approach is to use verilator?

module foo;
  initial begin
        $display("hi");
        $finish;
        end
endmodule //foo

Comments are // initial is not even a statement. What syntactic category is it? The prduced file is a vvp textfile bitvectors are described in a very odd way. [lastbitindex:firstbitindex]

tasks/processes: initial vs always symbiyosys. Pretty cool seeming

https://verilogguide.readthedocs.io/en/latest/index.html FPGA design with verilog

bluespec - chris says. Chris is nuts though. he drank so much koolaid he slams through walls

https://www.asic-world.com/verilog/veritut.html verilog tutorial. There’s some weird stuff in here

https://twitter.com/pdp7/status/1458115920811868165?s=20 tiups on university courses using ice40 and open source https://github.com/icebreaker-fpga/icebreaker-workshop

https://github.com/philzook58/nand2coq/tree/master/verilog actually some kind of fun stuff in here.

Staged bluespec

Bluespec - ready and enable signals. Do not a assume any particular latency Also suppress clk signal

The essence of bluespec https://www.youtube.com/watch?v=5W9v-n-EZuo&ab_channel=ACMSIGPLAN Koika