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379 Commits

Author SHA1 Message Date
Miodrag Milanovic ae7daf99f4 Verific: Add attributes to module instantiation 2024-02-12 09:53:47 +01:00
Ethan Mahintorabi ff578ecabd
fix formatting 
Signed-off-by: Ethan Mahintorabi <ethanmoon@google.com>
 2024-02-05 07:23:04 +00:00
Ethan Mahintorabi bc66dfd9ea
verific: Fixes incorrect aldff inference in verific importer 
The following SV module at HEAD imported with verific,

```systemverilog
    module my_module(
      input logic [4:0] a,
      input logic clk,
      input logic enable,
      output logic [4:0] z
    );

    reg [4:0] pipeline_register;
    always @(posedge clk) begin
      pipeline_register <= enable ? a : pipeline_register;
    end
    assign z = pipeline_register;

    endmodule : my_module

```

results in the following output verilog

```systemverilog
/* Generated by 0.36 */

(* top =  1  *)
(* hdlname = "my_module" *)
(* src = "/tmp/temp_directory_zTwd0l/my_input.v:2.12-2.21" *)
module my_module(clk, enable, a, z);
  wire [4:0] _0_;
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:3.25-3.26" *)
  input [4:0] a;
  wire [4:0] a;
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:4.19-4.22" *)
  input clk;
  wire clk;
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:5.19-5.25" *)
  input enable;
  wire enable;
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:6.26-6.27" *)
  output [4:0] z;
  wire [4:0] z;
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:10.12-12.8" *)
  \$aldff  #(
    .ALOAD_POLARITY(32'd1),
    .CLK_POLARITY(32'd1),
    .WIDTH(32'd5)
  ) _1_ (
    .AD(5'hxx),
    .ALOAD(1'h0),
    .CLK(clk),
    .D(_0_),
    .Q(z)
  );
  (* src = "/tmp/temp_directory_zTwd0l/my_input.v:11.28-11.58" *)
  \$mux  #(
    .WIDTH(32'd5)
  ) _2_ (
    .A(z),
    .B(a),
    .S(enable),
    .Y(_0_)
  );
endmodule
```

Yosys is incorrectly infering aldffs due to an incorrect conversion
of logical 1 and 0 SigBits.

My PR unifies the conversion of Verific::Net objects into SigBits using
Yosys' internal representation of special signals like 0,1,x,z. After
my PR these signals are correctly converted into DFFs.

Signed-off-by: Ethan Mahintorabi <ethanmoon@google.com>
 2024-02-05 07:10:25 +00:00
Miodrag Milanovic db1de5fe5d verific: add option to skip simplifying complex ports 2024-01-30 16:33:44 +01:00
Miodrag Milanovic 1764c0ee3c Fix verific clocking when no driver exist 2024-01-18 08:47:04 +01:00
Miodrag Milanovic 96fecf0716 Revert "Add attributes to module instantiation" 
This reverts commit 8f207eed1b.
 2023-12-04 16:37:01 +01:00
Miodrag Milanovic 8f207eed1b Add attributes to module instantiation 2023-11-23 11:01:49 +01:00
N. Engelhardt 5fb1264db5 verific: don't try to import attributes from nullptr 2023-11-14 15:05:24 +01:00
N. Engelhardt 93a426cbbf
Merge pull request #4008 from nakengelhardt/mem_libmap_data_attr 
memory_libmap: look for ram_style attributes on surrounding signals
 2023-11-06 16:25:38 +01:00
Miodrag Milanovic f06d56d224 Handling non-existing location in verific logs 2023-11-03 08:06:16 +01:00
Miodrag Milanovic 4eb18e1f07 change verific log callback api 2023-11-01 08:13:27 +01:00
N. Engelhardt 833b67af80 verific: import attributes on ports 
Co-authored-by: Miodrag Milanović <mmicko@gmail.com>
 2023-10-20 18:31:41 +02:00
Miodrag Milanovic d473a207a1 Preserve VHDL architecture name in attribute 2023-10-12 09:17:06 +02:00
Jannis Harder 4ed708836a verific: Use CellBaseName to identify top modules 2023-10-10 11:51:16 +02:00
Miodrag Milanović a54e6f2d1f
Merge pull request #3984 from YosysHQ/module_hdlname 
verific: save original module name
 2023-10-05 19:41:00 +02:00
Jannis Harder 47a4b790f8 verific: Pass top modules to static elaboration when using hierarchy 2023-10-05 16:51:49 +02:00
Jannis Harder 23b9e61c47 verific: Pass list of top modules to static elaboration 2023-10-05 16:51:49 +02:00
Miodrag Milanovic 268fe92d22 verific: save original module name 2023-10-05 11:22:40 +02:00
Jannis Harder 563a56d9ff verific: Improve interaction between -L, -work and bind statements 2023-10-03 15:52:01 +02:00
Miodrag Milanovic f193ebdded Verific: add default parameters to modules 2023-09-27 16:57:18 +02:00
Miodrag Milanovic 18855f23ce Set src attribute for verific with full info 2023-09-19 12:00:10 +02:00
Jannis Harder 0e8a4adb59 verific: Update YOSYSHQ_VERIFIC_API_VERSION 2023-09-13 11:32:36 +02:00
Miodrag Milanovic 27ac912709 Support import of $future_ff 2023-09-13 11:32:36 +02:00
Miodrag Milanovic 9c255c98b1 unescape string tag attribute 2023-09-13 11:32:36 +02:00
Miodrag Milanovic 54050a8c16 Basic support for tag primitives 2023-09-13 11:32:36 +02:00
Miodrag Milanovic 7b134c2a8c verific - respect order of read and write for rams 2023-09-12 11:56:15 +02:00
Miodrag Milanovic 19d5293657 when blackboxing no need to know missing modules 2023-07-31 09:18:54 +02:00
Miodrag Milanovic 372760af57 spaces to tabs 2023-07-25 09:40:30 +02:00
Miodrag Milanovic 3989181cd6 Add ability to blackbox modules/units from file while reading with verific 2023-07-25 09:40:30 +02:00
N. Engelhardt 21686f0d9d verific: import src attribute on $memrd/$memwr cells 2023-06-23 19:41:36 +02:00
Miodrag Milanovic aff0065646 Use defaultvalue for init values of input ports 2023-06-21 13:21:34 +02:00
Miodrag Milanovic 75cf79588e Add ability for user plugin to add new verific log callback 2023-06-12 10:01:01 +02:00
Miodrag Milanovic ecd289c100 Fix importing parametrized VHDL entity 2023-05-23 08:25:08 +02:00
Jannis Harder 3cbca5064c verific: Handle non-seq properties with VerificClocking conditions 2023-04-21 17:19:42 +02:00
Jannis Harder ec47bf1745 verific: Handle conditions when using sva_at_only in VerificClocking 
This handles conditions on clocked concurrent assertions in unclocked
procedural contexts.
 2023-04-21 16:51:42 +02:00
Jannis Harder 390d1c583a verific: Fix enum_values support and signed attribute values 
This uses the same constant parsing for enum_values and for attributes
and extends it to handle signed values as those are used for enums that
implicitly use the int type.
 2023-03-15 09:51:36 +01:00
Miodrag Milanovic a30894e5fa Handle more wide case selector types 2023-02-27 09:24:04 +01:00
Miodrag Milanovic 109b88c379 For case select values use Sa instead of Sx and Sz 2023-02-08 09:22:48 +01:00
Miodrag Milanovic e7e37df91b Add verific import support for OPER_WIDE_CASE_SELECT_BOX 2023-02-06 09:28:23 +01:00
Miodrag Milanovic 6574553189 Fixes for some of clang scan-build detected issues 2023-01-17 12:58:08 +01:00
Miodrag Milanovic b867dee241 respect noblackbox attribute in verific 2022-12-15 08:17:53 +01:00
Miodrag Milanović 9362fdb4c6
Merge pull request #3568 from YosysHQ/verific_msg 
Set all Verific messages of certain type to other
 2022-12-05 16:22:44 +01:00
Miodrag Milanovic 34a64aa322 set VERI-1063 explicitly 2022-12-02 17:11:17 +01:00
Miodrag Milanovic 2dd55d73a0 reset elaboration error after rewriter 2022-11-30 17:26:48 +01:00
Miodrag Milanovic bfd79845b6 Set all verific messages of certain type to other 2022-11-30 16:42:37 +01:00
Miodrag Milanovic f764cd1655 update documentation 2022-11-25 14:27:30 +01:00
Miodrag Milanovic b0be19c126 Support importing verilog configurations using Verific 2022-11-25 13:02:11 +01:00
Miodrag Milanovic 59b6ac47c9 Add additional help info 2022-10-31 18:04:34 +01:00
Miodrag Milanovic 6fb80bce15 Enable importing blackbox modules only 2022-10-31 10:51:28 +01:00
Miodrag Milanovic e702f2894a Support for reading liberty files using verific 2022-10-31 10:15:05 +01:00