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author | Miodrag Milanovic <mmicko@gmail.com> | 2019-10-18 11:06:12 +0200 |
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committer | Miodrag Milanovic <mmicko@gmail.com> | 2019-10-18 11:06:12 +0200 |
commit | c2ec7ca7031e2e9c655723fcdb3ce3cb83cc74b1 (patch) | |
tree | 79cce7951390a0068beeab26be5d310222059c51 /tests/arch/ecp5/macc.v | |
parent | 3c41599ee1f62e4d77ba630fa1a245ef3fe236fa (diff) | |
download | yosys-c2ec7ca7031e2e9c655723fcdb3ce3cb83cc74b1.tar.gz yosys-c2ec7ca7031e2e9c655723fcdb3ce3cb83cc74b1.tar.bz2 yosys-c2ec7ca7031e2e9c655723fcdb3ce3cb83cc74b1.zip |
Moved all tests in arch sub directory
Diffstat (limited to 'tests/arch/ecp5/macc.v')
-rw-r--r-- | tests/arch/ecp5/macc.v | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/arch/ecp5/macc.v b/tests/arch/ecp5/macc.v new file mode 100644 index 000000000..63a3d3a74 --- /dev/null +++ b/tests/arch/ecp5/macc.v @@ -0,0 +1,25 @@ +/* +Example from: https://www.latticesemi.com/-/media/LatticeSemi/Documents/UserManuals/EI/iCEcube201701UserGuide.ashx?document_id=52071 [p. 77]. +*/ +module top(clk,a,b,c,set); +parameter A_WIDTH = 4; +parameter B_WIDTH = 3; +input set; +input clk; +input signed [(A_WIDTH - 1):0] a; +input signed [(B_WIDTH - 1):0] b; +output signed [(A_WIDTH + B_WIDTH - 1):0] c; +reg [(A_WIDTH + B_WIDTH - 1):0] reg_tmp_c; +assign c = reg_tmp_c; +always @(posedge clk) +begin +if(set) +begin +reg_tmp_c <= 0; +end +else +begin +reg_tmp_c <= a * b + c; +end +end +endmodule |