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Progress on AppNote 011

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This commit is contained in:
Clifford Wolf 2013-11-29 12:51:16 +01:00
parent 1b3a60976d
commit e23a0072ec
6 changed files with 190 additions and 11 deletions
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1
manual/APPNOTE_011_Design_Investigation/.gitignore vendored
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@ -1,6 +1,7 @@
example_00.dot
example_01.dot
example_02.dot
example_03.dot
cmos_00.dot
cmos_01.dot
splice.dot

9
manual/APPNOTE_011_Design_Investigation/example.v
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@ -1,5 +1,6 @@
module example(input clk, a, b, c, output reg [1:0] y);
always @(posedge clk)
if (c)
y <= c ? a + b : 2'd0;
module example(input clk, a, b, c,
output reg [1:0] y);
always @(posedge clk)
if (c)
y <= c ? a + b : 2'd0;
endmodule

5
manual/APPNOTE_011_Design_Investigation/example.ys
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@ -4,3 +4,8 @@ proc
show -format dot -prefix example_01
opt
show -format dot -prefix example_02
cd example
select t:$add
show -format dot -prefix example_03

1
manual/APPNOTE_011_Design_Investigation/make.sh
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@ -7,6 +7,7 @@ sed -i '/^label=/ d;' example_*.dot splice.dot cmos_*.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 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

3
manual/APPNOTE_011_Design_Investigation/splice.v
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@ -4,6 +4,7 @@ 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}};
assign {y[11:4], y[1:0], y[3:2]} =
{a, b, -{c, d}, ~{e, f}};
endmodule