diff options
Diffstat (limited to 'manual/APPNOTE_011_Design_Investigation')
4 files changed, 27 insertions, 1 deletions
diff --git a/manual/APPNOTE_011_Design_Investigation/.gitignore b/manual/APPNOTE_011_Design_Investigation/.gitignore index 291bf0266..5626754fc 100644 --- a/manual/APPNOTE_011_Design_Investigation/.gitignore +++ b/manual/APPNOTE_011_Design_Investigation/.gitignore @@ -5,3 +5,5 @@ example_03.dot cmos_00.dot cmos_01.dot splice.dot +sumprod_00.dot +sumprod_01.dot diff --git a/manual/APPNOTE_011_Design_Investigation/foobaraddsub.v b/manual/APPNOTE_011_Design_Investigation/foobaraddsub.v new file mode 100644 index 000000000..0f277211d --- /dev/null +++ b/manual/APPNOTE_011_Design_Investigation/foobaraddsub.v @@ -0,0 +1,8 @@ +module foobaraddsub(a, b, c, d, fa, fs, ba, bs); + input [7:0] a, b, c, d; + output [7:0] fa, fs, ba, bs; + assign fa = a + (* foo *) b; + assign fs = a - (* foo *) b; + assign ba = c + (* bar *) d; + assign bs = c - (* bar *) d; +endmodule diff --git a/manual/APPNOTE_011_Design_Investigation/make.sh b/manual/APPNOTE_011_Design_Investigation/make.sh index af08d990a..cbabdc8e3 100644 --- a/manual/APPNOTE_011_Design_Investigation/make.sh +++ b/manual/APPNOTE_011_Design_Investigation/make.sh @@ -3,7 +3,9 @@ ../../yosys -p 'proc; opt; show -format dot -prefix splice' splice.v ../../yosys -p 'techmap; abc -liberty ../../techlibs/cmos/cmos_cells.lib;; show -format dot -prefix cmos_00' cmos.v ../../yosys -p 'techmap; splitnets -ports; abc -liberty ../../techlibs/cmos/cmos_cells.lib;; show -lib ../../techlibs/cmos/cmos_cells.v -format dot -prefix cmos_01' cmos.v -sed -i '/^label=/ d;' example_*.dot splice.dot cmos_*.dot +../../yosys -p 'opt; cd sumprod; select a:sumstuff; show -format dot -prefix sumprod_00' sumprod.v +../../yosys -p 'opt; cd sumprod; select a:sumstuff %x; show -format dot -prefix sumprod_01' sumprod.v +sed -i '/^label=/ d;' example_*.dot splice.dot cmos_*.dot sumprod_*.dot dot -Tpdf -o example_00.pdf example_00.dot dot -Tpdf -o example_01.pdf example_01.dot dot -Tpdf -o example_02.pdf example_02.dot @@ -11,3 +13,5 @@ dot -Tpdf -o example_03.pdf example_03.dot dot -Tpdf -o splice.pdf splice.dot dot -Tpdf -o cmos_00.pdf cmos_00.dot dot -Tpdf -o cmos_01.pdf cmos_01.dot +dot -Tpdf -o sumprod_00.pdf sumprod_00.dot +dot -Tpdf -o sumprod_01.pdf sumprod_01.dot diff --git a/manual/APPNOTE_011_Design_Investigation/sumprod.v b/manual/APPNOTE_011_Design_Investigation/sumprod.v new file mode 100644 index 000000000..4091bf0a1 --- /dev/null +++ b/manual/APPNOTE_011_Design_Investigation/sumprod.v @@ -0,0 +1,12 @@ +module sumprod(a, b, c, sum, prod); + + input [7:0] a, b, c; + output [7:0] sum, prod; + + {* sumstuff *} + assign sum = a + b + c; + {* *} + + assign prod = a * b * c; + +endmodule |