From 16fda0bd24f1d1e4bb6b39cd0f1a545fd096d6c3 Mon Sep 17 00:00:00 2001 From: Yen-Sheng Ho Date: Sat, 18 Feb 2017 09:10:45 -0800 Subject: added a simple example; edited hgignore --- .hgignore | 5 +++++ fsm.v | 28 ++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) create mode 100644 fsm.v diff --git a/.hgignore b/.hgignore index b5fedc7a..f5d4784c 100644 --- a/.hgignore +++ b/.hgignore @@ -52,9 +52,14 @@ build/ *.rej *.orig +tags + syntax: regexp ^libabc.a$ ^abc$ ^arch_flags$ + +^cmake +^cscope diff --git a/fsm.v b/fsm.v new file mode 100644 index 00000000..272c4a89 --- /dev/null +++ b/fsm.v @@ -0,0 +1,28 @@ +module fsm (out); +output out; + +wire [2:0] ns; +wire [2:0] cs; + +always @( ns or cs ) +begin +case (cs) + 0 : ns = 3'b010; + 1 : ns = 3'b001; + 2 : ns = 3'b000; + 3 : ns = 3'b101; + 4 : ns = 3'b001; + 5 : ns = 3'b111; + 6 : ns = 3'b001; + 7 : ns = 3'b110; +endcase +end + +assign out = cs == 3'b001; + +wire [2:0] const0 = 3'h0; + + +CPL_FF#3 ff3 ( .q(cs), .qbar(), .d(ns), .clk(), .arst(), .arstval(const0) ); + +endmodule -- cgit v1.2.3