Change pragma translate_off to ifndef Synthesis (#210)

* renamed translate_off to `ifndef SYNTHESIS

* replaced pragmas for stream_fifo_optimal_wrap

* replaced pragmas in deprecated modules

fix whitespace

src/addr_decode_dync.sv

@@ -124,7 +124,7 @@ module addr_decode_dync #(
   // Assumptions and assertions
   `ifndef COMMON_CELLS_ASSERTS_OFF
   `ifndef XSIM
-  // pragma translate_off
+  `ifndef SYNTHESIS
   initial begin : proc_check_parameters
     assume ($bits(addr_i) == $bits(addr_map_i[0].start_addr)) else
       $warning($sformatf("Input address has %d bits and address map has %d bits.",
@@ -184,7 +184,7 @@ module addr_decode_dync #(
       end
     end
   end
-  // pragma translate_on
+  `endif
   `endif
   `endif
 

src/cb_filter.sv

@@ -237,12 +237,12 @@ module hash_block #(
 
 `ifndef COMMON_CELLS_ASSERTS_OFF
   // assertions
-  // pragma translate_off
+  `ifndef SYNTHESIS
   initial begin
     hash_conf: assume (InpWidth > HashWidth) else
       $fatal(1, "%m:\nA Hash Function reduces the width of the input>\nInpWidth: %s\nOUT_WIDTH: %s",
           InpWidth, HashWidth);
   end
-  // pragma translate_on
+  `endif
 `endif
 endmodule

src/cdc_2phase_clearable.sv

@@ -258,12 +258,12 @@ module cdc_2phase_src_clearable #(
 
 // Assertions
 `ifndef COMMON_CELLS_ASSERTS_OFF
-  // pragma translate_off
+  `ifndef SYNTHESIS
   no_clear_and_request: assume property (
      @(posedge clk_i) disable iff(~rst_ni) (clear_i |-> ~valid_i))
     else $fatal(1, "No request allowed while clear_i is asserted.");
 
-  // pragma translate_on
+  `endif
 `endif
 
 endmodule

src/cdc_fifo_2phase.sv

@@ -62,11 +62,11 @@ module cdc_fifo_2phase #(
 );
 
   // Check the invariants.
-  //pragma translate_off
+  `ifndef SYNTHESIS
   initial begin
     assert(LOG_DEPTH > 0);
   end
-  //pragma translate_on
+  `endif
 
   localparam int PtrWidth = LOG_DEPTH+1;
   typedef logic [PtrWidth-1:0] pointer_t;

src/cdc_fifo_gray.sv

@@ -157,12 +157,12 @@ module cdc_fifo_gray #(
   );
 
   // Check the invariants.
-  // pragma translate_off
+  `ifndef SYNTHESIS
   `ifndef COMMON_CELLS_ASSERTS_OFF
   initial assert(LOG_DEPTH > 0);
   initial assert(SYNC_STAGES >= 2);
   `endif
-  // pragma translate_on
+  `endif
 
 endmodule
 

src/cdc_fifo_gray_clearable.sv

@@ -254,12 +254,12 @@ module cdc_fifo_gray_clearable #(
   assign dst_clear_pending_o = s_dst_isolate_req;
 
   // Check the invariants.
-  // pragma translate_off
+  `ifndef SYNTHESIS
   `ifndef COMMON_CELLS_ASSERTS_OFF
   initial assert(LOG_DEPTH > 0);
   initial assert(SYNC_STAGES >= 2);
   `endif
-  // pragma translate_on
+  `endif
 
 endmodule
 

src/cf_math_pkg.sv

@@ -23,7 +23,7 @@ package cf_math_pkg;
     function automatic integer ceil_div (input longint dividend, input longint divisor);
         automatic longint remainder;
 
-        // pragma translate_off
+        `ifndef SYNTHESIS
         `ifndef COMMON_CELLS_ASSERTS_OFF
         if (dividend < 0) begin
             $fatal(1, "Dividend %0d is not a natural number!", dividend);
@@ -37,7 +37,7 @@ package cf_math_pkg;
             $fatal(1, "Division by zero!");
         end
         `endif
-        // pragma translate_on
+        `endif
 
         remainder = dividend;
         for (ceil_div = 0; remainder > 0; ceil_div++) begin

src/deprecated/fifo_v2.sv

@@ -67,13 +67,13 @@ module fifo_v2 #(
         .pop_i
     );
 
-    // pragma translate_off
+    `ifndef SYNTHESIS
     `ifndef COMMON_CELLS_ASSERTS_OFF
         initial begin
             assert (ALM_FULL_TH <= DEPTH)  else $error("ALM_FULL_TH can't be larger than the DEPTH.");
             assert (ALM_EMPTY_TH <= DEPTH) else $error("ALM_EMPTY_TH can't be larger than the DEPTH.");
         end
     `endif
-    // pragma translate_on
+    `endif
 
 endmodule // fifo_v2

src/deprecated/find_first_one.sv

@@ -26,11 +26,11 @@ module find_first_one #(
 
     localparam int NUM_LEVELS = $clog2(WIDTH);
 
-    // pragma translate_off
+    `ifndef SYNTHESIS
     initial begin
         assert(WIDTH >= 0);
     end
-    // pragma translate_on
+    `endif
 
     logic [WIDTH-1:0][NUM_LEVELS-1:0]          index_lut;
     logic [2**NUM_LEVELS-1:0]                  sel_nodes;

src/deprecated/generic_fifo.sv

@@ -70,7 +70,7 @@ module generic_fifo
    int unsigned            i;
 
    // Parameter Check
-   // synopsys translate_off
+   `ifndef SYNTHESIS
    initial begin : parameter_check
       integer param_err_flg;
       param_err_flg = 0;
@@ -85,7 +85,7 @@ module generic_fifo
          $display("ERROR: %m :\n  Invalid value (%d) for parameter DATA_DEPTH (legal range: greater than 1)", DATA_DEPTH );
       end
    end
-   // synopsys translate_on
+   `endif
 
 `ifndef PULP_FPGA_EMUL
    cluster_clock_gating cg_cell

src/deprecated/generic_fifo_adv.sv

@@ -48,7 +48,7 @@ module generic_fifo_adv
    int 						    unsigned                    i;
 
    // Parameter Check
-   // synopsys translate_off
+   `ifndef SYNTHESIS
    initial
    begin : parameter_check
       integer param_err_flg;
@@ -66,7 +66,7 @@ module generic_fifo_adv
            $display("ERROR: %m :\n  Invalid value (%d) for parameter DATA_DEPTH (legal range: greater than 1)", DATA_DEPTH );
 	end                   
    end
-   // synopsys translate_on
+   `endif
 
 `ifndef PULP_FPGA_EMUL
    cluster_clock_gating cg_cell

src/exp_backoff.sv

@@ -81,7 +81,7 @@ module exp_backoff #(
 // assertions
 ///////////////////////////////////////////////////////
 
-//pragma translate_off
+`ifndef SYNTHESIS
 `ifndef COMMON_CELLS_ASSERTS_OFF
   initial begin
     // assert wrong parameterizations
@@ -93,6 +93,6 @@ module exp_backoff #(
       else $fatal(1,"Zero seed is not allowed for LFSR");
   end
 `endif
-//pragma translate_on
+`endif
 
 endmodule // exp_backoff

src/fifo_v3.sv

@@ -137,7 +137,7 @@ module fifo_v3 #(
         end
     end
 
-// pragma translate_off
+`ifndef SYNTHESIS
 `ifndef COMMON_CELLS_ASSERTS_OFF
     initial begin
         assert (DEPTH > 0)             else $error("DEPTH must be greater than 0.");
@@ -151,6 +151,6 @@ module fifo_v3 #(
         @(posedge clk_i) disable iff (~rst_ni) (empty_o |-> ~pop_i))
         else $fatal (1, "Trying to pop data although the FIFO is empty.");
 `endif
-// pragma translate_on
+`endif
 
 endmodule // fifo_v3

src/id_queue.sv

@@ -404,7 +404,7 @@ module id_queue #(
     end
 
     // Validate parameters.
-// pragma translate_off
+`ifndef SYNTHESIS
 `ifndef COMMON_CELLS_ASSERTS_OFF
     initial begin: validate_params
         assert (ID_WIDTH >= 1)
@@ -413,6 +413,6 @@ module id_queue #(
             else $fatal(1, "The queue must have capacity of at least one entry!");
     end
 `endif
-// pragma translate_on
+`endif
 
 endmodule

src/isochronous_4phase_handshake.sv

@@ -68,14 +68,14 @@ module isochronous_4phase_handshake (
   // destination is valid if we didn't yet get acknowledge
   assign dst_valid_o = (dst_req_q != dst_ack_q);
 
- // pragma translate_off
+ `ifndef SYNTHESIS
  // stability guarantees
   `ifndef COMMON_CELLS_ASSERTS_OFF
   assert property (@(posedge src_clk_i) disable iff (~src_rst_ni)
     (src_valid_i && !src_ready_o |=> $stable(src_valid_i))) else $error("src_valid_i is unstable");
   assert property (@(posedge dst_clk_i) disable iff (~dst_rst_ni)
     (dst_valid_o && !dst_ready_i |=> $stable(dst_valid_o))) else $error("dst_valid_o is unstable");
   `endif
-  // pragma translate_on
+  `endif
 
 endmodule

src/isochronous_spill_register.sv

@@ -95,7 +95,7 @@ module isochronous_spill_register #(
     assign dst_data_o = mem_q[rd_pointer_q[0]];
   end
 
-  // pragma translate_off
+  `ifndef SYNTHESIS
   // stability guarantees
   `ifndef COMMON_CELLS_ASSERTS_OFF
   assert property (@(posedge src_clk_i) disable iff (~src_rst_ni)
@@ -107,5 +107,5 @@ module isochronous_spill_register #(
   assert property (@(posedge dst_clk_i) disable iff (~dst_rst_ni)
     (dst_valid_o && !dst_ready_i |=> $stable(dst_data_o))) else $error("dst_data_o is unstable");
   `endif
-  // pragma translate_on
+  `endif
 endmodule

src/lfsr.sv

@@ -290,7 +290,7 @@ end
 // assertions
 ////////////////////////////////////////////////////////////////////////
 `ifndef COMMON_CELLS_ASSERTS_OFF
-// pragma translate_off
+`ifndef SYNTHESIS
 initial begin
   // these are the LUT limits
   assert(OutWidth <= LfsrWidth) else
@@ -308,7 +308,7 @@ end
   all_zero: assert property (
     @(posedge clk_i) disable iff (!rst_ni) en_i |-> lfsr_d)
       else $fatal(1,"Lfsr must not be all-zero.");
-// pragma translate_on
+`endif
 `endif
 
 endmodule // lfsr

src/lfsr_16bit.sv

@@ -59,12 +59,12 @@ module lfsr_16bit #(
     end
 
   `ifndef COMMON_CELLS_ASSERTS_OFF
-    //pragma translate_off
+    `ifndef SYNTHESIS
     initial begin
         assert (WIDTH <= 16)
             else $fatal(1, "WIDTH needs to be less than 16 because of the 16-bit LFSR");
     end
-    //pragma translate_on
+    `endif
   `endif
 
 endmodule

src/lfsr_8bit.sv

@@ -53,11 +53,11 @@ module lfsr_8bit #(
   end
 
 `ifndef COMMON_CELLS_ASSERTS_OFF
-  //pragma translate_off
+  `ifndef SYNTHESIS
   initial begin
     assert (WIDTH <= 8) else $fatal(1, "WIDTH needs to be less than 8 because of the 8-bit LFSR");
   end
-  //pragma translate_on
+  `endif
 `endif
 
 endmodule

src/lzc.sv

@@ -40,11 +40,11 @@ module lzc #(
     localparam int unsigned NumLevels = $clog2(WIDTH);
 
   `ifndef COMMON_CELLS_ASSERTS_OFF
-    // pragma translate_off
+    `ifndef SYNTHESIS
     initial begin
       assert(WIDTH > 0) else $fatal(1, "input must be at least one bit wide");
     end
-    // pragma translate_on
+    `endif
   `endif
 
     logic [WIDTH-1:0][NumLevels-1:0] index_lut;
@@ -101,13 +101,13 @@ module lzc #(
 
   end : gen_lzc
 
-// pragma translate_off
+`ifndef SYNTHESIS
 `ifndef COMMON_CELLS_ASSERTS_OFF
   initial begin: validate_params
     assert (WIDTH >= 1)
       else $fatal(1, "The WIDTH must at least be one bit wide!");
   end
 `endif
-// pragma translate_on
+`endif
 
 endmodule : lzc

src/mem_to_banks_detailed.sv

@@ -208,7 +208,7 @@ module mem_to_banks_detailed #(
   assign rvalid_o = &(resp_valid | dead_response);
 
   // Assertions
-  // pragma translate_off
+  `ifndef SYNTHESIS
   `ifndef COMMON_CELLS_ASSERTS_OFF
   `ifndef SYNTHESIS
     initial begin
@@ -221,5 +221,5 @@ module mem_to_banks_detailed #(
     end
   `endif
   `endif
-  // pragma translate_on
+  `endif
 endmodule

src/multiaddr_decode.sv

@@ -122,7 +122,7 @@ module multiaddr_decode #(
   // Assumptions and assertions
   `ifndef COMMON_CELLS_ASSERTS_OFF
   `ifndef XSIM
-  // pragma translate_off
+  `ifndef SYNTHESIS
   initial begin : proc_check_parameters
     assume (NoRules > 0) else
       $fatal(1, $sformatf("At least one rule needed"));
@@ -148,7 +148,7 @@ module multiaddr_decode #(
     end
   end
 
-  // pragma translate_on
+  `endif
   `endif
   `endif
 endmodule

src/onehot_to_bin.sv

@@ -29,10 +29,10 @@ module onehot_to_bin #(
         assign bin[j] = |(tmp_mask & onehot);
     end
 
-// pragma translate_off
+`ifndef SYNTHESIS
 `ifndef COMMON_CELLS_ASSERTS_OFF
     assert final ($onehot0(onehot)) else
         $fatal(1, "[onehot_to_bin] More than two bit set in the one-hot signal");
 `endif
-// pragma translate_on
+`endif
 endmodule