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| author | Eddie Hung <eddie@fpgeh.com> | 2019-06-06 14:21:34 -0700 |
|---|---|---|
| committer | Eddie Hung <eddie@fpgeh.com> | 2019-06-06 14:21:34 -0700 |
| commit | 5c277c6325b78bfe18cf294b63ea69ff272e69c5 (patch) | |
| tree | 5407195159a09be5b3fd7f8af0e7d28dee7c6f75 /tests | |
| parent | 0a66720f6f67b087fe6342d01d45944506240942 (diff) | |
| download | yosys-5c277c6325b78bfe18cf294b63ea69ff272e69c5.tar.gz yosys-5c277c6325b78bfe18cf294b63ea69ff272e69c5.tar.bz2 yosys-5c277c6325b78bfe18cf294b63ea69ff272e69c5.zip | |
Fix and test for balanced case
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/various/muxpack.v | 26 | ||||
| -rw-r--r-- | tests/various/muxpack.ys | 15 |
2 files changed, 41 insertions, 0 deletions
diff --git a/tests/various/muxpack.v b/tests/various/muxpack.v index 7c189fff8..f1bd5ea8e 100644 --- a/tests/various/muxpack.v +++ b/tests/various/muxpack.v @@ -110,3 +110,29 @@ always @* begin endcase end endmodule + +module mux_if_bal_8_2 #(parameter N=8, parameter W=2) (input [N*W-1:0] i, input [$clog2(N)-1:0] s, output reg [W-1:0] o); +always @* + if (s[0] == 1'b0) + if (s[1] == 1'b0) + if (s[2] == 1'b0) + o <= i[0*W+:W]; + else + o <= i[1*W+:W]; + else + if (s[2] == 1'b0) + o <= i[2*W+:W]; + else + o <= i[3*W+:W]; + else + if (s[1] == 1'b0) + if (s[2] == 1'b0) + o <= i[4*W+:W]; + else + o <= i[5*W+:W]; + else + if (s[2] == 1'b0) + o <= i[6*W+:W]; + else + o <= i[7*W+:W]; +endmodule diff --git a/tests/various/muxpack.ys b/tests/various/muxpack.ys index 0c5b82818..9ea743b9f 100644 --- a/tests/various/muxpack.ys +++ b/tests/various/muxpack.ys @@ -133,3 +133,18 @@ design -import gold -as gold design -import gate -as gate miter -equiv -flatten -make_assert -make_outputs gold gate miter sat -verify -prove-asserts -show-ports miter + +design -load read +hierarchy -top mux_if_bal_8_2 +prep +design -save gold +muxpack +opt +stat +select -assert-count 7 t:$mux +select -assert-count 0 t:$pmux +design -stash gate +design -import gold -as gold +design -import gate -as gate +miter -equiv -flatten -make_assert -make_outputs gold gate miter +sat -verify -prove-asserts -show-ports miter |