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Progress on AppNote 011

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This commit is contained in:
Clifford Wolf 2013-12-02 12:54:21 +01:00
parent 6e227e3666
commit 0f4055d4c6
5 changed files with 77 additions and 3 deletions
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4
manual/APPNOTE_011_Design_Investigation/.gitignore vendored
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@ -13,3 +13,7 @@ sumprod_04.dot
sumprod_05.dot
memdemo_00.dot
memdemo_01.dot
submod_00.dot
submod_01.dot
submod_02.dot
submod_03.dot

7
manual/APPNOTE_011_Design_Investigation/make.sh
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@ -11,7 +11,8 @@
../../yosys -p 'opt; cd sumprod; select prod %ci3; show -format dot -prefix sumprod_05' sumprod.v
../../yosys -p 'proc; opt; memory; opt; cd memdemo; show -format dot -prefix memdemo_00' memdemo.v
../../yosys -p 'proc; opt; memory; opt; cd memdemo; show -format dot -prefix memdemo_01 y %ci2:+$dff[Q,D] %ci*:-$mux[S]:-$dff' memdemo.v
sed -i '/^label=/ d;' example_*.dot splice.dot cmos_*.dot sumprod_*.dot memdemo_*.dot
../../yosys submod.ys
sed -i '/^label=/ d;' example_*.dot splice.dot cmos_*.dot sumprod_*.dot memdemo_*.dot submod_*.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
@ -27,3 +28,7 @@ dot -Tpdf -o sumprod_04.pdf sumprod_04.dot
dot -Tpdf -o sumprod_05.pdf sumprod_05.dot
dot -Tpdf -o memdemo_00.pdf memdemo_00.dot
dot -Tpdf -o memdemo_01.pdf memdemo_01.dot
dot -Tpdf -o submod_00.pdf submod_00.dot
dot -Tpdf -o submod_01.pdf submod_01.dot
dot -Tpdf -o submod_02.pdf submod_02.dot
dot -Tpdf -o submod_03.pdf submod_03.dot

2
manual/APPNOTE_011_Design_Investigation/memdemo.v
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@ -11,7 +11,7 @@ reg [3:0] mem [0:3];
always @(posedge clk) begin
for (i = 0; i < 4; i = i+1)
mem[i] <= mem[(i+1) % 4] + mem[(i+2) % 4];
{ s2, s1 } = d ? { s1, s2 } ^ d : 0;
{ s2, s1 } = d ? { s1, s2 } ^ d : 4'b0;
mem[s1] <= d;
y <= mem[s2];
end

16
manual/APPNOTE_011_Design_Investigation/submod.ys Normal file
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@ -0,0 +1,16 @@
read_verilog memdemo.v
proc; opt; memory; opt
cd memdemo
select -set outstage y %ci2:+$dff[Q,D] %ci*:-$mux[S]:-$dff
select -set selstage y %ci2:+$dff[Q,D] %ci*:-$dff @outstage %d
select -set scramble mem* %ci2 %ci*:-$dff mem* %d @selstage %d
submod -name scramble @scramble
submod -name outstage @outstage
submod -name selstage @selstage
cd ..
show -format dot -prefix submod_00 memdemo
show -format dot -prefix submod_01 scramble
show -format dot -prefix submod_02 outstage
show -format dot -prefix submod_03 selstage