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author | KrystalDelusion <93062060+KrystalDelusion@users.noreply.github.com> | 2022-11-25 03:56:44 +1300 |
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committer | GitHub <noreply@github.com> | 2022-11-24 15:56:44 +0100 |
commit | b9b5899cceb392c0069345c5b43c37bfe8346116 (patch) | |
tree | 557cb31d96b2224891c7ed37a9b25d3d8caa7d2e /docs/source/APPNOTE_011_Design_Investigation/memdemo.v | |
parent | fc2f622a27dbc604a4acce68bea8c20b208c1742 (diff) | |
download | yosys-b9b5899cceb392c0069345c5b43c37bfe8346116.tar.gz yosys-b9b5899cceb392c0069345c5b43c37bfe8346116.tar.bz2 yosys-b9b5899cceb392c0069345c5b43c37bfe8346116.zip |
Remove docs dependency on yosys repo (#3558)
* Copies guidelines files into docs/ for website
* Copying manual/CHAPTER_Prog for new docs
* Copying manual/APPNOTE_011... for new docs
Also adding faketime to list of packages for website build.
Co-authored-by: KrystalDelusion <krystinedawn@yosyshq.com>
Diffstat (limited to 'docs/source/APPNOTE_011_Design_Investigation/memdemo.v')
-rw-r--r-- | docs/source/APPNOTE_011_Design_Investigation/memdemo.v | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/docs/source/APPNOTE_011_Design_Investigation/memdemo.v b/docs/source/APPNOTE_011_Design_Investigation/memdemo.v new file mode 100644 index 000000000..b39564ddc --- /dev/null +++ b/docs/source/APPNOTE_011_Design_Investigation/memdemo.v @@ -0,0 +1,19 @@ +module memdemo(clk, d, y); + +input clk; +input [3:0] d; +output reg [3:0] y; + +integer i; +reg [1:0] s1, s2; +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 : 4'b0; + mem[s1] <= d; + y <= mem[s2]; +end + +endmodule |