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Merge pull request #2122 from PeterCrozier/struct_array2

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Support 2D bit arrays in structures. Optimise array indexing.
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clairexen 2020-08-19 17:58:37 +02:00 • committed by GitHub
commit 87b9ee330d
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2 changed files with 84 additions and 30 deletions
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22
tests/svtypes/struct_array.sv
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@ -1,7 +1,7 @@
// test for array indexing in structures
module top;
struct packed {
bit [5:0] [7:0] a; // 6 element packed array of bytes
bit [15:0] b; // filler for non-zero offset
@ -19,4 +19,24 @@ module top;
always_comb assert(s==64'h4200_0012_3400_FFFC);
struct packed {
bit [7:0] [7:0] a; // 8 element packed array of bytes
bit [15:0] b; // filler for non-zero offset
} s2;
initial begin
s2 = '0;
s2.a[2:1] = 16'h1234;
s2.a[5] = 8'h42;
s2.a[7] = '1;
s2.a[7][1:0] = '0;
s2.b = '1;
s2.b[1:0] = '0;
end
always_comb assert(s2==80'hFC00_4200_0012_3400_FFFC);
endmodule