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More progress on AppNote 011

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This commit is contained in:
Clifford Wolf 2013-11-28 17:39:16 +01:00
parent 0e52f3fa01
commit 9595eca181
4 changed files with 122 additions and 5 deletions
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1
manual/APPNOTE_011_Design_Investigation/.gitignore vendored
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@ -1,3 +1,4 @@
example_00.dot
example_01.dot
example_02.dot
splice.dot

4
manual/APPNOTE_011_Design_Investigation/make.sh
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#!/bin/bash
../../yosys example.ys
sed -i '/^label=/ d;' example_*.dot
../../yosys -p 'proc; opt; show -format dot -prefix splice' splice.v
sed -i '/^label=/ d;' example_*.dot splice.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
dot -Tpdf -o splice.pdf splice.dot

9
manual/APPNOTE_011_Design_Investigation/splice.v Normal file
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module splice_demo(a, b, c, d, e, f, x, y);
input [1:0] a, b, c, d, e, f;
output [1:0] x = {a[0], a[1]};
output [11:0] y;
assign {y[11:4], y[1:0], y[3:2]} = {a, b, -{c, d}, ~{e, f}};
endmodule