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Merge pull request #2378 from udif/pr_dollar_high_low

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Added $high(), $low(), $left(), $right()
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clairexen 2020-10-01 18:17:36 +02:00 • committed by GitHub
commit 7e2fc2eaeb
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4 changed files with 159 additions and 31 deletions
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61
tests/sat/sizebits.sv
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@ -1,5 +1,6 @@
module functions01;
wire t;
wire [5:2]x;
wire [3:0]y[2:7];
wire [3:0]z[7:2][2:9];
@ -9,24 +10,84 @@ wire [3:0]z[7:2][2:9];
//wire [$size(y)-1:0]y_size;
//wire [$size(z)-1:0]z_size;
assert property ($size(t) == 1);
assert property ($size(x) == 4);
assert property ($size({3{x}}) == 3*4);
assert property ($size(y) == 6);
assert property ($size(y, 1) == 6);
assert property ($size(y, (1+1)) == 4);
// This is unsupported at the moment
//assert property ($size(y[2], 1) == 4);
//assert property ($size(y[2][1], 1) == 1);
assert property ($size(z) == 6);
assert property ($size(z, 1) == 6);
assert property ($size(z, 2) == 8);
assert property ($size(z, 3) == 4);
// This is unsupported at the moment
assert property ($size(z[3], 1) == 8);
assert property ($size(z[3][3], 1) == 4);
//assert property ($size(z[3][3][3], 1) == 1);
// This should trigger an error if enabled (it does).
//assert property ($size(z, 4) == 4);
//wire [$bits(x)-1:0]x_bits;
//wire [$bits({x, x})-1:0]xx_bits;
assert property ($bits(t) == 1);
assert property ($bits(x) == 4);
assert property ($bits(y) == 4*6);
assert property ($bits(z) == 4*6*8);
assert property ($high(x) == 5);
assert property ($high(y) == 7);
assert property ($high(y, 1) == 7);
assert property ($high(y, (1+1)) == 3);
assert property ($high(z) == 7);
assert property ($high(z, 1) == 7);
assert property ($high(z, 2) == 9);
assert property ($high(z, 3) == 3);
assert property ($high(z[3]) == 9);
assert property ($high(z[3][3]) == 3);
assert property ($high(z[3], 2) == 3);
assert property ($low(x) == 2);
assert property ($low(y) == 2);
assert property ($low(y, 1) == 2);
assert property ($low(y, (1+1)) == 0);
assert property ($low(z) == 2);
assert property ($low(z, 1) == 2);
assert property ($low(z, 2) == 2);
assert property ($low(z, 3) == 0);
assert property ($low(z[3]) == 2);
assert property ($low(z[3][3]) == 0);
assert property ($low(z[3], 2) == 0);
assert property ($left(x) == 5);
assert property ($left(y) == 2);
assert property ($left(y, 1) == 2);
assert property ($left(y, (1+1)) == 3);
assert property ($left(z) == 7);
assert property ($left(z, 1) == 7);
assert property ($left(z, 2) == 2);
assert property ($left(z, 3) == 3);
assert property ($left(z[3]) == 2);
assert property ($left(z[3][3]) == 3);
assert property ($left(z[3], 2) == 3);
assert property ($right(x) == 2);
assert property ($right(y) == 7);
assert property ($right(y, 1) == 7);
assert property ($right(y, (1+1)) == 0);
assert property ($right(z) == 2);
assert property ($right(z, 1) == 2);
assert property ($right(z, 2) == 9);
assert property ($right(z, 3) == 0);
assert property ($right(z[3]) == 9);
assert property ($right(z[3][3]) == 0);
assert property ($right(z[3], 2) == 0);
endmodule