mirror of https://github.com/YosysHQ/yosys.git
132 lines
3.0 KiB
Plaintext
132 lines
3.0 KiB
Plaintext
##################################################################
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read_verilog -sv -icells <<EOT
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module top(input C, D, E, S, R, output [7:0] Q);
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always @( posedge C, posedge S, posedge R)
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if (R) Q[0] <= 0;
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else if (S) Q[0] <= 1;
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else Q[0] <= D;
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always @( posedge C, posedge S, posedge R)
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if (S) Q[1] <= 1;
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else if (R) Q[1] <= 0;
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else Q[1] <= D;
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always @( posedge C, posedge S, posedge R)
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if (R) Q[2] <= 0;
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else if (S) Q[2] <= 1;
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else if (E) Q[2] <= D;
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always @( posedge C, posedge S, posedge R)
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if (S) Q[3] <= 1;
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else if (R) Q[3] <= 0;
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else if (E) Q[3] <= D;
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assign Q[7:4] = ~Q[3:0];
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endmodule
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EOT
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proc
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opt
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copy top top_unmapped
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##################################################################
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dfflibmap -liberty dfflibmap_dffsr_s.lib top
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clk2fflogic
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flatten
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opt_clean -purge
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miter -equiv -make_assert -flatten top_unmapped top miter
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# Prove that this is equivalent
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sat -verify -prove-asserts -set-init-undef -show-public -seq 3 miter
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##################################################################
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delete top miter
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copy top_unmapped top
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dfflibmap -liberty dfflibmap_dffsr_r.lib top
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clk2fflogic
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flatten
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miter -equiv -make_assert -flatten top_unmapped top miter
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# Prove that this is equivalent
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sat -verify -prove-asserts -set-init-undef -show-public -seq 3 miter
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##################################################################
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delete top miter
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copy top_unmapped top
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dfflibmap -liberty dfflibmap_dffsr_l.lib top
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clk2fflogic
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flatten
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miter -equiv -make_assert -flatten top_unmapped top miter
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# Prove that this is equivalent
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sat -verify -prove-asserts -set-init-undef -show-public -seq 3 miter
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##################################################################
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delete top miter
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copy top_unmapped top
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dfflibmap -liberty dfflibmap_dffsr_h.lib top
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clk2fflogic
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flatten
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miter -equiv -make_assert -flatten top_unmapped top miter
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# Prove that this is equivalent
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sat -verify -prove-asserts -set-init-undef -show-public -seq 3 miter
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##################################################################
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delete top miter
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copy top_unmapped top
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dfflibmap -liberty dfflibmap_dffsr_mixedpol.lib top
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clk2fflogic
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flatten
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miter -equiv -make_assert -flatten top_unmapped top miter
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# Prove that this is equivalent
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sat -verify -prove-asserts -set-init-undef -show-public -seq 3 miter
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##################################################################
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delete top miter
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copy top_unmapped top
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dfflibmap -liberty dfflibmap_dffsr_not_next.lib top
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clk2fflogic
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flatten
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miter -equiv -make_assert -flatten top_unmapped top miter
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# Prove that this is equivalent
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sat -verify -prove-asserts -set-init-undef -show-public -seq 3 miter
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##################################################################
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delete top miter
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copy top_unmapped top
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dfflibmap -liberty dfflibmap_dffsr_not_next_l.lib top
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clk2fflogic
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flatten
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miter -equiv -make_assert -flatten top_unmapped top miter
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# Prove that this is equivalent
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sat -verify -prove-asserts -set-init-undef -show-public -seq 3 miter
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