a
if denominator is 0 -> foo is X
Size: a a a
2019 April 30
AK
Prince😊 Ind
Please help me how the denominator become zero here thank you
b should be 4'sb1110, what is actually -1 (ones'-complement of 4'sb0001)
a
4'sb1111 is -1, 4'sb1110 is -2, 4'sb0000 is 0
T
You could see if Active-HDL from Aldec has a path
T
For edif to structural HDL
T
I believe their tool will import old foundation stuff just fine
2019 May 06
RZ
Hello! Has anyone tried to initialize ROM with .wav audio file using Verilog/SystemVerilog? I had tried to use $readmemh, but get an error. Does it real to initialize ROM in hardware, not in the testbench?
V
Hello! Has anyone tried to initialize ROM with .wav audio file using Verilog/SystemVerilog? I had tried to use $readmemh, but get an error. Does it real to initialize ROM in hardware, not in the testbench?
Yes. Please, read about Mif files.
V
*upd - for Altera
M
Hello! Has anyone tried to initialize ROM with .wav audio file using Verilog/SystemVerilog? I had tried to use $readmemh, but get an error. Does it real to initialize ROM in hardware, not in the testbench?
yes, with $readmemh, in Xilinx and Altera
M
Hello! Has anyone tried to initialize ROM with .wav audio file using Verilog/SystemVerilog? I had tried to use $readmemh, but get an error. Does it real to initialize ROM in hardware, not in the testbench?
never used .mif or .upd files, and it’s synthesizable code
RZ
yes, with $readmemh, in Xilinx and Altera
But I have troubled with it using readmemh. I need to read .wav file
M
But I have troubled with it using readmemh. I need to read .wav file
can you show code?
RZ
logic [16:0] ROM[256]
initial
begin
ROM = readmemh ("path/file.wav");
end
initial
begin
ROM = readmemh ("path/file.wav");
end
RZ
I can show full code, but later.
M
I don’t think that is valid Verilog
RZ
SystemVerilog
RZ
But there is no difference
RZ
I use Quartus
M
```
initial begin
$readmemh (“path/file.wav”, rom);
end
```
initial begin
$readmemh (“path/file.wav”, rom);
end
```