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fpga: sim: Fix cast in PkgRandom

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Original-commit: c6561226d819b75b18fffad283ec59d58109a951
This commit is contained in:
Wade Fife
2024-05-16 09:30:05 -05:00
parent 70ab61e202
commit 894e5aa9a4
1 changed files with 3 additions and 3 deletions
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sim/packages/PkgRandom.sv
+3 -3
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@@ -115,16 +115,16 @@ package PkgRandom;
a = b; a = b;
b = temp; b = temp;
end end
num_bits = $clog2(b - a + unsigned_t'{1}); num_bits = $clog2(b - a + (WIDTH+1)'(1));
do begin do begin
num = a + (rand_bit() & ((unsigned_t'{1} << num_bits) - 1)); num = a + (rand_bit() & (((WIDTH+1)'(1) << num_bits) - 1));
end while (num > b); end while (num > b);
return num; return num;
endfunction : rand_bit_range endfunction : rand_bit_range
// Returns a random number in the given SIGNED range. Behavior is the same // Returns a random number in the given SIGNED range. Behavior is the same
// as rand_bit_range(), bunsigned_t treats the range values as SIGNED numbers. // as rand_bit_range(), but treats the range values as SIGNED numbers.
static function signed_t rand_sbit_range( static function signed_t rand_sbit_range(
signed_t a = {1'b0, {WIDTH{1'b1}}}, signed_t a = {1'b0, {WIDTH{1'b1}}},
signed_t b = 0 signed_t b = 0