mirror of https://github.com/YosysHQ/yosys.git
100 lines
2.8 KiB
Plaintext
100 lines
2.8 KiB
Plaintext
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read_verilog << EOT
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module ibuf ((* iopad_external_pin *) input i, output o); endmodule
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module obuf (input i, (* iopad_external_pin *) output o); endmodule
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module obuft (input i, input oe, (* iopad_external_pin *) output o); endmodule
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module iobuf (input i, input oe, output o, (* iopad_external_pin *) inout io); endmodule
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module a(input i, output o);
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assign o = i;
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endmodule
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module b(input i, output o);
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assign o = i;
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ibuf b (.i(i), .o(o));
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endmodule
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module c(input i, output o);
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obuf b (.i(i), .o(o));
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endmodule
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module d(input i, oe, output o, o2, o3);
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assign o = oe ? i : 1'bz;
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assign o2 = o;
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assign o3 = ~o;
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endmodule
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module e(input i, oe, inout io, output o2, o3);
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assign io = oe ? i : 1'bz;
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assign o2 = io;
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assign o3 = ~io;
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endmodule
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EOT
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opt_clean
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tribuf
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simplemap
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iopadmap -bits -inpad ibuf o:i -outpad obuf i:o -toutpad obuft oe:i:o -tinoutpad iobuf oe:o:i:io
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opt_clean
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select -assert-count 1 a/t:ibuf
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select -assert-count 1 a/t:obuf
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select -set ib w:i %a %co a/t:ibuf %i
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select -set ob w:o %a %ci a/t:obuf %i
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select -assert-count 1 @ib
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select -assert-count 1 @ob
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select -assert-count 1 @ib %co %co @ob %i
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select -assert-count 1 b/t:ibuf
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select -assert-count 1 b/t:obuf
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select -set ib w:i %a %co b/t:ibuf %i
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select -set ob w:o %a %ci b/t:obuf %i
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select -assert-count 1 @ib
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select -assert-count 1 @ob
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select -assert-count 1 @ib %co %co @ob %i
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select -assert-count 1 c/t:ibuf
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select -assert-count 1 c/t:obuf
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select -set ib w:i %a %co c/t:ibuf %i
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select -set ob w:o %a %ci c/t:obuf %i
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select -assert-count 1 @ib
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select -assert-count 1 @ob
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select -assert-count 1 @ib %co %co @ob %i
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select -assert-count 2 d/t:ibuf
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select -assert-count 2 d/t:obuf
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select -assert-count 1 d/t:obuft
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select -set ib w:i %a %co d/t:ibuf %i
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select -set oeb w:oe %a %co d/t:ibuf %i
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select -set ob w:o %a %ci d/t:obuft %i
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select -set o2b w:o2 %a %ci d/t:obuf %i
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select -set o3b w:o3 %a %ci d/t:obuf %i
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select -assert-count 1 @ib
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select -assert-count 1 @oeb
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select -assert-count 1 @ob
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select -assert-count 1 @o2b
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select -assert-count 1 @o3b
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select -assert-count 1 @ib %co %co @ob %i
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select -assert-count 1 @oeb %co %co @ob %i
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select -assert-count 1 @ib %co %co @o2b %i
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select -assert-count 1 @ib %co %co t:$_NOT_ %i
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select -assert-count 1 @o3b %ci %ci t:$_NOT_ %i
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select -assert-count 2 e/t:ibuf
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select -assert-count 2 e/t:obuf
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select -assert-count 1 e/t:iobuf
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select -set ib w:i %a %co e/t:ibuf %i
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select -set oeb w:oe %a %co e/t:ibuf %i
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select -set iob w:io %a %ci e/t:iobuf %i
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select -set o2b w:o2 %a %ci e/t:obuf %i
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select -set o3b w:o3 %a %ci e/t:obuf %i
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select -assert-count 1 @ib
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select -assert-count 1 @oeb
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select -assert-count 1 @iob
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select -assert-count 1 @o2b
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select -assert-count 1 @o3b
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select -assert-count 1 @ib %co %co @iob %i
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select -assert-count 1 @oeb %co %co @iob %i
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select -assert-count 1 @iob %co %co @o2b %i
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select -assert-count 1 @iob %co %co t:$_NOT_ %i
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select -assert-count 1 @o3b %ci %ci t:$_NOT_ %i
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