From edc6b3f037b601b44f41c1c881488440a9c9d3e4 Mon Sep 17 00:00:00 2001
From: Larry Doolittle <ldoolitt@recycle.lbl.gov>
Date: Fri, 10 Nov 2017 21:39:44 -0800
Subject: Rework some examples so resulting Verilog compiles

---
 Makefile                         |  2 +-
 examples/dsp.vhd                 | 32 ++++++++++++++++++++++++++++++++
 examples/genericmap.vhd          | 25 ++++++++++++++++++++++---
 examples/mem.vhd                 | 36 ++++++++++++++++++++++++++++++++++++
 examples/test.vhd                |  8 ++++----
 translated_examples/dsp.v        | 34 ++++++++++++++++++++++++++++++++++
 translated_examples/genericmap.v | 16 ++++++++++++++--
 translated_examples/mem.v        | 33 +++++++++++++++++++++++++++++++++
 translated_examples/test.v       |  4 ++--
 9 files changed, 178 insertions(+), 12 deletions(-)
 create mode 100644 examples/dsp.vhd
 create mode 100644 examples/mem.vhd
 create mode 100644 translated_examples/dsp.v
 create mode 100644 translated_examples/mem.v

diff --git a/Makefile b/Makefile
index 0bcd635..92e6c46 100644
--- a/Makefile
+++ b/Makefile
@@ -24,7 +24,7 @@ diff: translate
 	@echo "PASS"
 
 verilogcheck:
-	@cd translated_examples; for f in *.v; do $(VERILOG) $$f; done
+	@cd translated_examples; for f in *.v; do echo "Checking: $$f"; $(VERILOG) $$f; done
 
 clean:
 	make -C src clean
diff --git a/examples/dsp.vhd b/examples/dsp.vhd
new file mode 100644
index 0000000..7dedb47
--- /dev/null
+++ b/examples/dsp.vhd
@@ -0,0 +1,32 @@
+-- Nearly useless stub, it's here to support genericmap.vhd
+LIBRARY IEEE;
+USE IEEE.std_logic_1164.all;
+
+entity dsp is generic(
+  rst_val   : std_logic := '0';
+  thing_size: integer := 201;
+  bus_width : integer := 24
+);
+    port(
+      -- Inputs
+      clk, rstn : in std_logic;
+      en, start : in std_logic;
+      param : in std_logic_vector(7 downto 0);
+      addr : in std_logic_vector(2 downto 0);
+      din : in std_logic_vector(bus_width-1 downto 0);
+      we : in std_logic;
+      memdin : out std_logic_vector(13 downto 0);
+      -- Outputs
+      dout : out std_logic_vector(bus_width-1 downto 0);
+      memaddr : out std_logic_vector(5 downto 0);
+      memdout : out std_logic_vector(13 downto 0)
+      );
+end;
+
+architecture rtl of dsp is
+    signal foo : std_logic;
+begin
+    process(clk) begin
+       dout <= '1';
+    end process;
+end rtl;
diff --git a/examples/genericmap.vhd b/examples/genericmap.vhd
index 33d9363..9da3806 100644
--- a/examples/genericmap.vhd
+++ b/examples/genericmap.vhd
@@ -38,8 +38,14 @@ architecture rtl of genericmap is
     port(
       -- Inputs
       clk, rstn : in std_logic;
+      en, start : in std_logic;
+      param : in std_logic_vector(7 downto 0);
+      addr : in std_logic_vector(2 downto 0);
+      din : in std_logic_vector(25 downto 0);
+      we : in std_logic;
+      memdin : out std_logic_vector(13 downto 0);
       -- Outputs
-      dout : out std_logic_vector(bus_width downto 0);
+      dout : out std_logic_vector(bus_width-1 downto 0);
       memaddr : out std_logic_vector(5 downto 0);
       memdout : out std_logic_vector(13 downto 0)
       );
@@ -53,12 +59,19 @@ architecture rtl of genericmap is
   signal colour : std_logic_vector(1 downto 0);
 begin
   dsp_inst0 : dsp
+    -- default bus_width is 24
     port map(
     -- Inputs
     clk => clk,
     rstn => rstn,
+    en => '1',
+    start => '0',
+    param => X"42",
+    addr => "101",
+    din => X"111111",
+    we => '0',
     -- Outputs
-    dout => dout,
+    dout => dout(23 downto 0),
     memaddr => memaddr,
     memdout => memdout
   );
@@ -71,8 +84,14 @@ begin
     -- Inputs
     clk => clk,
     rstn => rstn,
+    en => '1',
+    start => '0',
+    param => X"42",
+    addr => "101",
+    din => X"1111",
+    we => '0',
     -- Outputs
-    dout => dout,
+    dout => dout(15 downto 0),
     memaddr => memaddr,
     memdout => memdout
   );
diff --git a/examples/mem.vhd b/examples/mem.vhd
new file mode 100644
index 0000000..90c1d62
--- /dev/null
+++ b/examples/mem.vhd
@@ -0,0 +1,36 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity mem is
+generic(
+  addr_width : integer := 6;
+  bus_width : integer := 14
+);
+  port (
+    clk : in std_logic;
+    rstn : in std_logic;  -- not implemented
+    en : in std_logic;
+    cs : in std_logic;  -- not implemented
+    addr : in unsigned(addr_width-1 downto 0);
+    din : in unsigned(bus_width-1 downto 0);
+    dout : out unsigned(bus_width-1 downto 0)
+  );
+end entity; 
+
+architecture rtl of mem is
+  type mem_Type is array (255 downto 0) of unsigned(bus_width-1 downto 0);
+  signal mem : mem_Type;
+  signal al : unsigned(addr_width-1 downto 0) := X"00";
+begin
+  dout <= mem(al);  
+  process (clk) is
+  begin
+    if rising_edge(clk) then
+      al <= addr;
+      if en = '1' then
+        mem(addr) <= din;
+      end if;
+    end if;
+  end process;
+end architecture;
diff --git a/examples/test.vhd b/examples/test.vhd
index b273e8f..d102a11 100644
--- a/examples/test.vhd
+++ b/examples/test.vhd
@@ -25,7 +25,7 @@ entity test is port(
   base : in std_logic_vector(2 downto 0);
   qtd : in std_logic_vector(21 downto 0);
   -- Outputs
-  dout : out std_logic_vector(25 downto 0);
+  dout : out std_logic_vector(23 downto 0);
   pixel_out : out std_logic_vector(7 downto 0);
   pixel_valid : out std_logic;
   code : out std_logic_vector(9 downto 0);
@@ -46,11 +46,11 @@ component dsp port(
   en, start : in std_logic;
   param : in std_logic_vector(7 downto 0);
   addr : in std_logic_vector(2 downto 0);
-  din : in std_logic_vector(25 downto 0);
+  din : in std_logic_vector(23 downto 0);
   we : in std_logic;
   memdin : out std_logic_vector(13 downto 0);
     -- Outputs
-  dout : out std_logic_vector(25 downto 0);
+  dout : out std_logic_vector(23 downto 0);
   memaddr : out std_logic_vector(5 downto 0);
   memdout : out std_logic_vector(13 downto 0)
 );
@@ -162,7 +162,7 @@ begin
     start => start,
     param => param,
     addr => addr,
-    din => din,
+    din => din(23 downto 0),
     we => we,
     memdin => memdin,
     -- Outputs
diff --git a/translated_examples/dsp.v b/translated_examples/dsp.v
new file mode 100644
index 0000000..c91fbcd
--- /dev/null
+++ b/translated_examples/dsp.v
@@ -0,0 +1,34 @@
+// Nearly useless stub, it's here to support genericmap.vhd
+// no timescale needed
+
+module dsp(
+input wire clk,
+input wire rstn,
+input wire en,
+input wire start,
+input wire [7:0] param,
+input wire [2:0] addr,
+input wire [bus_width - 1:0] din,
+input wire we,
+output wire [13:0] memdin,
+output reg [bus_width - 1:0] dout,
+output wire [5:0] memaddr,
+output wire [13:0] memdout
+);
+
+parameter rst_val=1'b0;
+parameter [31:0] thing_size=201;
+parameter [31:0] bus_width=24;
+// Inputs
+// Outputs
+
+
+
+wire foo;
+
+  always @(clk) begin
+    dout <= 1'b1;
+  end
+
+
+endmodule
diff --git a/translated_examples/genericmap.v b/translated_examples/genericmap.v
index 578f491..010962e 100644
--- a/translated_examples/genericmap.v
+++ b/translated_examples/genericmap.v
@@ -45,8 +45,14 @@ wire [1:0] colour;
       // Inputs
     .clk(clk),
     .rstn(rstn),
+    .en(1'b1),
+    .start(1'b0),
+    .param(8'h42),
+    .addr(3'b101),
+    .din(24'h111111),
+    .we(1'b0),
     // Outputs
-    .dout(dout),
+    .dout(dout[23:0]),
     .memaddr(memaddr),
     .memdout(memdout));
 
@@ -57,8 +63,14 @@ wire [1:0] colour;
       // Inputs
     .clk(clk),
     .rstn(rstn),
+    .en(1'b1),
+    .start(1'b0),
+    .param(8'h42),
+    .addr(3'b101),
+    .din(16'h1111),
+    .we(1'b0),
     // Outputs
-    .dout(dout),
+    .dout(dout[15:0]),
     .memaddr(memaddr),
     .memdout(memdout));
 
diff --git a/translated_examples/mem.v b/translated_examples/mem.v
new file mode 100644
index 0000000..18e36c4
--- /dev/null
+++ b/translated_examples/mem.v
@@ -0,0 +1,33 @@
+// no timescale needed
+
+module mem(
+input wire clk,
+input wire rstn,
+input wire en,
+input wire cs,
+input wire [addr_width - 1:0] addr,
+input wire [bus_width - 1:0] din,
+output wire [bus_width - 1:0] dout
+);
+
+parameter [31:0] addr_width=6;
+parameter [31:0] bus_width=14;
+// not implemented
+// not implemented
+
+
+
+
+reg [bus_width - 1:0] mem[255:0];
+reg [addr_width - 1:0] al = 8'h00;
+
+  assign dout = mem[al];
+  always @(posedge clk) begin
+    al <= addr;
+    if(en == 1'b1) begin
+      mem[addr] <= din;
+    end
+  end
+
+
+endmodule
diff --git a/translated_examples/test.v b/translated_examples/test.v
index 97e79ac..ec26454 100644
--- a/translated_examples/test.v
+++ b/translated_examples/test.v
@@ -25,7 +25,7 @@ input wire [7:0] load,
 input wire [6:0] pack,
 input wire [2:0] base,
 input wire [21:0] qtd,
-output wire [25:0] dout,
+output wire [23:0] dout,
 output reg [7:0] pixel_out,
 output wire pixel_valid,
 output reg [9:0] code,
@@ -153,7 +153,7 @@ reg [1:0] colour;
     .start(start),
     .param(param),
     .addr(addr),
-    .din(din),
+    .din(din[23:0]),
     .we(we),
     .memdin(memdin),
     // Outputs
-- 
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