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author | Clifford Wolf <clifford@clifford.at> | 2019-02-20 17:18:59 +0100 |
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committer | Clifford Wolf <clifford@clifford.at> | 2019-02-20 17:18:59 +0100 |
commit | 84999a7e680648dff674ce55f634a675852b7dc3 (patch) | |
tree | cba89da224aff60480869ba6e6b27bbe152883df | |
parent | 218e9051bbdbbd00620a21e6918e6a4b9bc07867 (diff) | |
download | yosys-84999a7e680648dff674ce55f634a675852b7dc3.tar.gz yosys-84999a7e680648dff674ce55f634a675852b7dc3.tar.bz2 yosys-84999a7e680648dff674ce55f634a675852b7dc3.zip |
Add ice40 test_dsp_map test case generator
Signed-off-by: Clifford Wolf <clifford@clifford.at>
-rw-r--r-- | techlibs/ice40/tests/.gitignore | 4 | ||||
-rw-r--r-- | techlibs/ice40/tests/test_dsp_map.sh | 95 |
2 files changed, 99 insertions, 0 deletions
diff --git a/techlibs/ice40/tests/.gitignore b/techlibs/ice40/tests/.gitignore index 9795152c2..300ce9aa6 100644 --- a/techlibs/ice40/tests/.gitignore +++ b/techlibs/ice40/tests/.gitignore @@ -4,3 +4,7 @@ /test_dsp_model.vcd /test_dsp_model_ref.v /test_dsp_model_uut.v +/test_dsp_map +/test_dsp_map_tb.v +/test_dsp_map_top.v +/test_dsp_map_syn.v diff --git a/techlibs/ice40/tests/test_dsp_map.sh b/techlibs/ice40/tests/test_dsp_map.sh new file mode 100644 index 000000000..5982e5b34 --- /dev/null +++ b/techlibs/ice40/tests/test_dsp_map.sh @@ -0,0 +1,95 @@ +#!/bin/bash +set -ex + +SZA=$(( 3 + $RANDOM % 13 )) +SZB=$(( 3 + $RANDOM % 13 )) +SZO=$(( 3 + $RANDOM % 29 )) + +C0=clk$(( $RANDOM & 1)) +C1=clk$(( $RANDOM & 1)) +C2=clk$(( $RANDOM & 1)) +C3=clk$(( $RANDOM & 1)) + +E0=$( test $(( $RANDOM & 1 )) -eq 0 && echo posedge || echo negedge ) +E1=$( test $(( $RANDOM & 1 )) -eq 0 && echo posedge || echo negedge ) +E2=$( test $(( $RANDOM & 1 )) -eq 0 && echo posedge || echo negedge ) +E3=$( test $(( $RANDOM & 1 )) -eq 0 && echo posedge || echo negedge ) + +SP=$( test $(( $RANDOM & 1 )) -eq 0 && echo S || echo P ) + +RC=$( test $(( $RANDOM & 1 )) -eq 0 && echo "reset" || echo "!reset" ) +RV="32'h$( echo $RANDOM | md5sum | cut -c1-8 )" + +cat > test_dsp_map_top.v << EOT +module top ( + input clk0, clk1, reset, + input [$SZA:0] A, + input [$SZB:0] B, + output [$SZO:0] O +); + reg [15:0] AA, BB; + reg [31:0] P, S; + + always @($E0 $C0) AA <= A; + always @($E1 $C1) BB <= B; + always @($E2 $C2) P <= AA * BB; + always @($E3 $C3) S <= $RC ? $RV : S + P; + assign O = $SP; +endmodule +EOT + +cat > test_dsp_map_tb.v << EOT +\`timescale 1ns / 1ps +module testbench; + reg clk1, clk0, reset; + reg [$SZA:0] A; + reg [$SZB:0] B; + + wire [$SZO:0] O_top, O_syn; + + top top_inst (.clk0(clk0), .clk1(clk1), .reset(reset), .A(A), .B(B), .O(O_top)); + syn syn_inst (.clk0(clk0), .clk1(clk1), .reset(reset), .A(A), .B(B), .O(O_syn)); + + initial begin + #2; + clk0 = 0; + clk1 = 0; + reset = 1; + A = 0; + B = 0; + + repeat (3) begin + #2; clk0 = ~clk0; + #2; clk0 = ~clk0; + #2; clk1 = ~clk1; + #2; clk1 = ~clk1; + end + + repeat (100) begin + #2; + A = \$urandom; + B = \$urandom; + reset = \$urandom & \$urandom & \$urandom & \$urandom; + if (\$urandom & 1) begin + #2; clk0 = ~clk0; + #2; clk0 = ~clk0; + end else begin + #2; clk1 = ~clk1; + #2; clk1 = ~clk1; + end + #2; + if (O_top !== O_syn) begin + \$display("ERROR: O_top=%b O_syn=%b", O_top, O_syn); + \$stop; + end + \$display("OK O_top=O_syn=%b", O_top); + end + + \$finish; + end +endmodule +EOT + +../../../yosys -p 'read_verilog test_dsp_map_top.v; synth_ice40 -dsp; rename top syn; write_verilog test_dsp_map_syn.v' +iverilog -o test_dsp_map -s testbench test_dsp_map_tb.v test_dsp_map_top.v test_dsp_map_syn.v ../cells_sim.v +vvp -N test_dsp_map |