icarus | Programming language designed as an experiment to explore | Machine Learning library
kandi X-RAY | icarus Summary
kandi X-RAY | icarus Summary
. Icarus is a programming language designed as an experiment to explore mutation and aliasing control. Allows controlled mutation and aliasing, but only when both caller and callee agree to it. No global mutable state. I am currently exploring a few potential options for how Icarus' "permissions" (ownership, aliasing, mutation, capabilities) system will work.
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Trending Discussions on icarus
QUESTION
My Verilog code is stored in C:\FA. There are three files:
ANSWER
Answered 2021-May-04 at 14:51You need to add code in your Verilog testbench to explicitly tell iverilog to create a VCD file. The iverilog documentation states:
QUESTION
I am trying to use two binary inputs A and B to get the binary output which is the F just like the truth table below, but it keeps saying:
...ANSWER
Answered 2021-Apr-09 at 13:59Since you make assignments to F3 within an always block, you must declare it as reg. The same is true for F2, F1, F0:
QUESTION
Hi Im trying to build a scraper (in Python) for the website ReelGood.com.
now I got this topic to and I figured out how to scrape the url from the movie page. but what I can't seem t figure out why this script won't work:
...ANSWER
Answered 2021-Mar-23 at 17:38I would use a combination of attribute = value selectors to target the elements which have the full url in the content attribute
QUESTION
When designing a state machine in Verilog I will normally use localparam to define state names. Most simulators will be able to deduce this and during debugging you can view the state signal by name and not by a number. For simulators that don't figure this out automatically (Icarus), I will generally do something like the following:
ANSWER
Answered 2021-Mar-17 at 05:38An alternative method would be to automatically generate translation files for the waveform viewer.
Here's a FIRRTL transform targeting gtkwave. It creates translation filter files for all ChiselEnums definitions and a "gtkw" savefile populated with all ports and submodules.
https://gist.github.com/kammoh/b3c85db9f2646a664f8dc84825f1bd1d
You can use it with chiseltest (chisel-testers2) like this:
QUESTION
I'm new to SystemVerilog, and I use Icarus Verilog. I'm trying to design a simple FSM to practise, but I keep getting this error:
...error: syntax in assignment statement l-value
ANSWER
Answered 2021-Feb-08 at 21:17In a case statement, the default keyword is used in place of other case item values; you can not assign a value to it. You still need to use the signal name that you are assigning.
Change:
QUESTION
I'm learning SystemVerilog for the university. I installed the extensions in Visual Studio Code for syntax highlighting: SystemVerilog, Verilog-HDL/SystemVerilog/Bluespec SystemVerilog (Names of extensions). I installed the compiler Icarus Verilog and inserted the address in the environment variables (PATH).
So I copied this code:
...ANSWER
Answered 2021-Jan-30 at 16:40I get a compile error in your port list. Change:
QUESTION
module alu(input [7:0] A,B,
input [3:0] selector,
output [7:0] ALU_output,
output ALU_output_carry
);
reg [7:0] ALU_result;
wire [8:0] tmp;
assign ALU_result=ALU_output;
assign tmp={1'b0,A}+{1'b0,B};
assign ALU_output_carry= tmp[8];
always @(*) begin
case(selector)
4'b0000: ALU_result= A+B;
4'b0001: ALU_result=A-B;
4'b0010: ALU_result=A&B;
4'b0011:ALU_result=A|B;
default: ALU_result=A-B;
endcase
end
endmodule
ANSWER
Answered 2021-Jan-13 at 12:39You never drive ALU_output, and you multiply drive ALU_result.
This line:
QUESTION
I am trying to take a floating point input and split it it into its sign, mantissa and exponent values. At lines 7 and 8, my compiler (I'm using Icarus Verilog) is giving the error:
Invalid module instantiation
even though I haven't instantiated any module here.
...ANSWER
Answered 2020-Dec-04 at 11:35You need to use the assign keyword to make continuous assignments:
QUESTION
I am trying to port some Verilog source code to SystemVerilog. This question is specific to Icarus Verilog (tested with 10.3 and 11 providing the same result), since I did not get any errors with tools (e.g. Yosys 0.9.0, Cadence Xcelium 19.09). The issue I have boils down to the following minimal example:
...ANSWER
Answered 2020-Nov-06 at 06:15The code runs correctly on EDAplayground with an older Icarus 10.0. So my guess is you didn't enable the SystemVerilog flag -g2012. By default Icarus runs in Verilog IEEE1364-2005 [1]; which is the same as setting the flag -g2005
Verilog only allows wires to be driven by assign statements or output ports.
SystemVerilog relaxed the rule so reg and logic driven by assign statements or output ports so long as that is the only driver. (Bit off topic but, I personally prefer following the stricter Verilog rules because not all tools have strong single source driver checking for reg and logic driven by assign statements or output ports)
Anyway, try this command:
QUESTION
I've tried creating a 'real' type value array in the following way in Icarus Verilog:
...ANSWER
Answered 2020-Oct-28 at 07:30It is only legal to use so-called array concatenation if you fill the entire array. You array have 10 elements, but there are only 9 on the right hand side:
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