mirror of
https://github.com/steveicarus/iverilog.git
synced 2026-09-07 01:56:52 +02:00
Stephen Williams
cea237b407
By adding ivtest to the iverilog source tree, it is easier to keep the regression test synchronized with the source that is being tested. This should be especially helpful for PRs that add a new feature, and have a matching ivtest PR with the regression test for that feature.
432 lines
12 KiB
Verilog
432 lines
12 KiB
Verilog
module top;
|
|
parameter pnani = $sqrt(-1);
|
|
parameter pnanr = $sqrt(-1.0);
|
|
parameter p0i = $sqrt(0);
|
|
parameter p0r = $sqrt(0.0);
|
|
parameter p2i = $sqrt(4);
|
|
parameter p2r = $sqrt(4.0);
|
|
parameter pln = $ln(1);
|
|
parameter plog10 = $log10(10);
|
|
parameter pexp = $exp(0);
|
|
parameter pfloor = $floor(1.5);
|
|
parameter pceil = $ceil(1.5);
|
|
parameter psin = $sin(0);
|
|
parameter pcos = $cos(0);
|
|
parameter ptan = $tan(0);
|
|
parameter pasin = $asin(0);
|
|
parameter pacos = $acos(1);
|
|
parameter patan = $atan(0);
|
|
parameter psinh = $sinh(0);
|
|
parameter pcosh = $cosh(0);
|
|
parameter ptanh = $tanh(0);
|
|
parameter pasinh = $asinh(0);
|
|
parameter pacosh = $acosh(1);
|
|
parameter patanh = $atanh(0);
|
|
parameter ppow = $pow(-2, 2);
|
|
parameter patan2 = $atan2(0, 0);
|
|
parameter phypot = $hypot(-1, 0);
|
|
|
|
reg [$sqrt(16)-1:0] reg4 = 'b0;
|
|
|
|
reg pass = 1'b1;
|
|
|
|
real result, rin;
|
|
|
|
wire [7:0] out = $sqrt(rin);
|
|
wire real rout = $sqrt(rin);
|
|
|
|
initial begin
|
|
|
|
/* Test the elab_pexpr implementation. */
|
|
|
|
if ($bits(reg4) !== 4) begin
|
|
$display("Failed register size, expected 4, got %d", $bits(reg4));
|
|
pass = 1'b0;
|
|
end
|
|
|
|
if (!(pnani != pnani)) begin
|
|
$display("Failed with param. NaN (int), expected NaN, got %f", pnani);
|
|
pass = 1'b0;
|
|
end
|
|
if (!(pnanr != pnanr)) begin
|
|
$display("Failed with param. NaN (real), expected NaN, got %f", pnanr);
|
|
pass = 1'b0;
|
|
end
|
|
if (p0i != 0.0) begin
|
|
$display("Failed with param. 0, expected 0.0, got %f", p0i);
|
|
pass = 1'b0;
|
|
end
|
|
if (p0r != 0.0) begin
|
|
$display("Failed with param. 0.0, expected 0.0, got %f", p0r);
|
|
pass = 1'b0;
|
|
end
|
|
if (p2i != 2.0) begin
|
|
$display("Failed with param. 4, expected 2.0, got %f", p2i);
|
|
pass = 1'b0;
|
|
end
|
|
if (p2r != 2.0) begin
|
|
$display("Failed with param. 4.0, expected 2.0, got %f", p2r);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
if (pln != 0.0) begin
|
|
$display("Failed with param. $ln, expected 0.0, got %f", pln);
|
|
pass = 1'b0;
|
|
end
|
|
if (plog10 != 1.0) begin
|
|
$display("Failed with param. $log10, expected 1.0, got %f", plog10);
|
|
pass = 1'b0;
|
|
end
|
|
if (pexp != 1.0) begin
|
|
$display("Failed with param. $exp, expected 1.0, got %f", pexp);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
if (pfloor != 1.0) begin
|
|
$display("Failed with param. $floor, expected 1.0, got %f", pfloor);
|
|
pass = 1'b0;
|
|
end
|
|
if (pceil != 2.0) begin
|
|
$display("Failed with param. $ceil, expected 2.0, got %f", pceil);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
if (psin != 0.0) begin
|
|
$display("Failed with param. $sin, expected 0.0, got %f", psin);
|
|
pass = 1'b0;
|
|
end
|
|
if (pcos != 1.0) begin
|
|
$display("Failed with param. $cos, expected 1.0, got %f", pcos);
|
|
pass = 1'b0;
|
|
end
|
|
if (ptan != 0.0) begin
|
|
$display("Failed with param. $tan, expected 0.0, got %f", ptan);
|
|
pass = 1'b0;
|
|
end
|
|
if (pasin != 0.0) begin
|
|
$display("Failed with param. $asin, expected 0.0, got %f", pasin);
|
|
pass = 1'b0;
|
|
end
|
|
if (pacos != 0.0) begin
|
|
$display("Failed with param. $acos, expected 0.0, got %f", pacos);
|
|
pass = 1'b0;
|
|
end
|
|
if (patan != 0.0) begin
|
|
$display("Failed with param. $atan, expected 0.0, got %f", patan);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
if (psinh != 0.0) begin
|
|
$display("Failed with param. $sinh, expected 0.0, got %f", psinh);
|
|
pass = 1'b0;
|
|
end
|
|
if (pcosh != 1.0) begin
|
|
$display("Failed with param. $cosh, expected 1.0, got %f", pcosh);
|
|
pass = 1'b0;
|
|
end
|
|
if (ptanh != 0.0) begin
|
|
$display("Failed with param. $tanh, expected 0.0, got %f", ptanh);
|
|
pass = 1'b0;
|
|
end
|
|
if (pasinh != 0.0) begin
|
|
$display("Failed with param. $asinh, expected 0.0, got %f", pasinh);
|
|
pass = 1'b0;
|
|
end
|
|
if (pacosh != 0.0) begin
|
|
$display("Failed with param. $acosh, expected 0.0, got %f", pacosh);
|
|
pass = 1'b0;
|
|
end
|
|
if (patanh != 0.0) begin
|
|
$display("Failed with param. $atanh, expected 0.0, got %f", patanh);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
if (ppow != 4.0) begin
|
|
$display("Failed with param. $pow, expected 4.0, got %f", ppow);
|
|
pass = 1'b0;
|
|
end
|
|
if (patan2 != 0.0) begin
|
|
$display("Failed with param. $atan2, expected 4.0, got %f", patan2);
|
|
pass = 1'b0;
|
|
end
|
|
if (phypot != 1.0) begin
|
|
$display("Failed with param. $hypot, expected 1.0, got %f", phypot);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
/* Test the eval_tree implementation. */
|
|
|
|
result = $sqrt(0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with 0, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $sqrt(0.0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with 0.0, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
result = $sqrt(4);
|
|
if (result != 2.0) begin
|
|
$display("Failed with 4, expected 2.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $sqrt(4.0);
|
|
if (result != 2.0) begin
|
|
$display("Failed with 4.0, expected 2.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
result = $ln(1);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $ln, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $log10(10);
|
|
if (result != 1.0) begin
|
|
$display("Failed with $log10, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $exp(0);
|
|
if (result != 1.0) begin
|
|
$display("Failed with $exp, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $floor(1.5);
|
|
if (result != 1.0) begin
|
|
$display("Failed with $floor, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $ceil(1.5);
|
|
if (result != 2.0) begin
|
|
$display("Failed with $ceil, expected 2.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
result = $sin(0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $sin, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $cos(0);
|
|
if (result != 1.0) begin
|
|
$display("Failed with $cos, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $tan(0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $tan, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $asin(0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $asin, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $acos(1);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $acos, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $atan(0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $atan, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
result = $sinh(0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $sinh, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $cosh(0);
|
|
if (result != 1.0) begin
|
|
$display("Failed with $cosh, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $tanh(0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $tanh, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $asinh(0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $asinh, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $acosh(1);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $acosh, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $atanh(0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $atanh, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
result = $pow(-2, 2);
|
|
if (result != 4.0) begin
|
|
$display("Failed with $pow, expected 4.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $atan2(0, 0);
|
|
if (result != 0.0) begin
|
|
$display("Failed with $atan2, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $hypot(-1, 0);
|
|
if (result != 1.0) begin
|
|
$display("Failed with $hypot, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
/* Test the CA statements and the vpi implementation. */
|
|
|
|
rin = -1;
|
|
#1 if (out !== 8'bx) begin
|
|
$display("Failed CA (int) with -1.0, expected 'bx, got %d", out);
|
|
pass = 1'b0;
|
|
end
|
|
if (!(rout != rout)) begin
|
|
$display("Failed CA (real) with -1.0, expected NaN, got %f", rout);
|
|
pass = 1'b0;
|
|
end
|
|
rin = 4.0;
|
|
#1 if (out !== 2) begin
|
|
$display("Failed CA (int) with 4.0, expected 2, got %d", out);
|
|
pass = 1'b0;
|
|
end
|
|
if (rout != 2.0) begin
|
|
$display("Failed CA (real) with 4.0, expected 2.0, got %f", rout);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
// Run time generated.
|
|
rin = -1.0;
|
|
result = $sqrt(rin);
|
|
if (!(result != result)) begin
|
|
$display("Failed run time with -1.0, expected NaN got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
rin = 1.0;
|
|
result = $ln(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $ln, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
rin = 10.0;
|
|
result = $log10(rin);
|
|
if (result != 1.0) begin
|
|
$display("Failed run time $log10, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
rin = 0.0;
|
|
result = $exp(rin);
|
|
if (result != 1.0) begin
|
|
$display("Failed run time $exp, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
rin = 1.5;
|
|
result = $floor(rin);
|
|
if (result != 1.0) begin
|
|
$display("Failed run time $floor, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $ceil(rin);
|
|
if (result != 2.0) begin
|
|
$display("Failed run time $ceil, expected 2.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
rin = 0.0;
|
|
result = $sin(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $sin, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $cos(rin);
|
|
if (result != 1.0) begin
|
|
$display("Failed run time $cos, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $tan(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $tan, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $asin(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $asin, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
rin = 1.0;
|
|
result = $acos(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $acos, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
rin = 0.0;
|
|
result = $atan(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $atan, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
result = $sinh(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $sinh, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $cosh(rin);
|
|
if (result != 1.0) begin
|
|
$display("Failed run time $cosh, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $tanh(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $tanh, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $asinh(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $asinh, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
rin = 1.0;
|
|
result = $acosh(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $acosh, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
rin = 0.0;
|
|
result = $atanh(rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $atanh, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
rin = 2.0;
|
|
result = $pow(-2, rin);
|
|
if (result != 4.0) begin
|
|
$display("Failed run time $pow, expected 4.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
rin = 0.0;
|
|
result = $atan2(0, rin);
|
|
if (result != 0.0) begin
|
|
$display("Failed run time $atan2, expected 0.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
result = $hypot(-1, rin);
|
|
if (result != 1.0) begin
|
|
$display("Failed run time $hypot, expected 1.0, got %f", result);
|
|
pass = 1'b0;
|
|
end
|
|
|
|
if (pass) $display("PASSED");
|
|
end
|
|
endmodule
|