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Bugfix in ice40_dsp 

Signed-off-by: Clifford Wolf <clifford@clifford.at>
This commit is contained in:
Clifford Wolf 2019-02-21 13:28:46 +01:00
parent 84999a7e68
commit 2fe1c830eb
3 changed files with 35 additions and 22 deletions
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4
passes/pmgen/ice40_dsp.cc
View File

@ -91,8 +91,8 @@ void create_ice40_dsp(ice40_dsp_pm &pm)
cell->setPort("\\C", CD.extract(0, 16));
cell->setPort("\\D", CD.extract(16, 16));
cell->setParam("\\A_REG", pm.st.ffA ? State::S0 : State::S1);
cell->setParam("\\B_REG", pm.st.ffB ? State::S0 : State::S1);
cell->setParam("\\A_REG", pm.st.ffA ? State::S1 : State::S0);
cell->setParam("\\B_REG", pm.st.ffB ? State::S1 : State::S0);
cell->setPort("\\AHOLD", State::S0);
cell->setPort("\\BHOLD", State::S0);

1
techlibs/ice40/tests/.gitignore vendored
View File

@ -5,6 +5,7 @@
/test_dsp_model_ref.v
/test_dsp_model_uut.v
/test_dsp_map
/test_dsp_map.vcd
/test_dsp_map_tb.v
/test_dsp_map_top.v
/test_dsp_map_syn.v

52
techlibs/ice40/tests/test_dsp_map.sh
View File

@ -1,26 +1,28 @@
#!/bin/bash
set -ex
SZA=$(( 3 + $RANDOM % 13 ))
SZB=$(( 3 + $RANDOM % 13 ))
SZO=$(( 3 + $RANDOM % 29 ))
for iter in {1..100}
do
SZA=$(( 3 + $RANDOM % 13 ))
SZB=$(( 3 + $RANDOM % 13 ))
SZO=$(( 3 + $RANDOM % 29 ))
C0=clk$(( $RANDOM & 1))
C1=clk$(( $RANDOM & 1))
C2=clk$(( $RANDOM & 1))
C3=clk$(( $RANDOM & 1))
C0=clk$(( $RANDOM & 1))
C1=clk$(( $RANDOM & 1))
C2=clk$(( $RANDOM & 1))
C3=clk$(( $RANDOM & 1))
E0=$( 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 $(( $RANDOM & 1 )) -eq 0 && echo posedge || echo negedge )
E0=$( 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 $(( $RANDOM & 1 )) -eq 0 && echo S || echo P )
SP=$( test $(( $RANDOM & 1 )) -eq 0 && echo S || echo P )
RC=$( test $(( $RANDOM & 1 )) -eq 0 && echo "reset" || echo "!reset" )
RV="32'h$( echo $RANDOM | md5sum | cut -c1-8 )"
RC=$( test $(( $RANDOM & 1 )) -eq 0 && echo "reset" || echo "!reset" )
RV="32'h$( echo $RANDOM | md5sum | cut -c1-8 )"
cat > test_dsp_map_top.v << EOT
cat > test_dsp_map_top.v << EOT
module top (
input clk0, clk1, reset,
input [$SZA:0] A,
@ -38,7 +40,7 @@ module top (
endmodule
EOT
cat > test_dsp_map_tb.v << EOT
cat > test_dsp_map_tb.v << EOT
\`timescale 1ns / 1ps
module testbench;
reg clk1, clk0, reset;
@ -51,10 +53,14 @@ module testbench;
syn syn_inst (.clk0(clk0), .clk1(clk1), .reset(reset), .A(A), .B(B), .O(O_syn));
initial begin
// \$dumpfile("test_dsp_map.vcd");
// \$dumpvars(0, testbench);
#2;
clk0 = 0;
clk1 = 0;
reset = 1;
reset = $RC;
A = 0;
B = 0;
@ -82,14 +88,20 @@ module testbench;
\$display("ERROR: O_top=%b O_syn=%b", O_top, O_syn);
\$stop;
end
\$display("OK O_top=O_syn=%b", O_top);
// \$display("OK O_top=O_syn=%b", O_top);
end
\$display("Test passed.");
\$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
../../../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
done
: ""
: "#### All tests passed. ####"
: ""