mock: mock tag_array_64x184 RTL to speed up tests

Signed-off-by: Øyvind Harboe <[email protected]>

BUILD.bazel

@@ -359,7 +359,7 @@ all_source_files = [
 "rtl/table_128x52.sv",
 "rtl/table_256x48.sv",
 "rtl/tag_array_64x168.sv",
-"rtl/tag_array_64x184.sv",
+"mock/tag_array_64x184.sv",
 "rtl/TageBranchPredictorBank.sv",
 "rtl/TageTable_1.sv",
 "rtl/TageTable_2.sv",
@@ -740,7 +740,8 @@ digital_top_srams=[
         'data_data_40x128':'mock',
         'ebtb_128x40':'mock',
         'ghist_40x64':'mock',
-        'l2_tlb_ram_0_512x45':'mock'}.get(ram, "rtl") + "/" + ram + ".sv"],
+        'l2_tlb_ram_0_512x45':'mock',
+        'tag_array_64x184':'mock'}.get(ram, "rtl") + "/" + ram + ".sv"],
         sdc_constraints = ":constraints-sram",
         stage_args={
                 'synth': ['SYNTH_MEMORY_MAX_BITS=16384'],
@@ -752,7 +753,7 @@ digital_top_srams=[
         },
         mock_abstract=True,
         mock_stage='cts',
-        mock_area={'tag_array_64x184':0.20,
+        mock_area={
         'meta_40x240':0.3,
         'data_data_40x128':1,
         'ram_256x8':0.2,

MODULE.bazel

@@ -18,6 +18,6 @@ git_override(
 # 1. uncomment below
 # 2. comment git_override() above
 #
-# local_path_override(
-#    module_name = "bazel-orfs", path = "../bazel-orfs"
-# )
+#local_path_override(
+#   module_name = "bazel-orfs", path = "../bazel-orfs"
+#)

mock/tag_array_64x184.sv

@@ -0,0 +1,67 @@
+// Standard header to adapt well known macros for prints and assertions.
+
+// Users can define 'ASSERT_VERBOSE_COND' to add an extra gate to assert error printing.
+`ifndef ASSERT_VERBOSE_COND_
+  `ifdef ASSERT_VERBOSE_COND
+    `define ASSERT_VERBOSE_COND_ (`ASSERT_VERBOSE_COND)
+  `else  // ASSERT_VERBOSE_COND
+    `define ASSERT_VERBOSE_COND_ 1
+  `endif // ASSERT_VERBOSE_COND
+`endif // not def ASSERT_VERBOSE_COND_
+
+// Users can define 'STOP_COND' to add an extra gate to stop conditions.
+`ifndef STOP_COND_
+  `ifdef STOP_COND
+    `define STOP_COND_ (`STOP_COND)
+  `else  // STOP_COND
+    `define STOP_COND_ 1
+  `endif // STOP_COND
+`endif // not def STOP_COND_
+
+// VCS coverage exclude_file
+module tag_array_64x184(
+  input  [5:0]   R0_addr,
+  input          R0_en,
+                 R0_clk,
+  output [183:0] R0_data,
+  input  [5:0]   W0_addr,
+  input          W0_en,
+                 W0_clk,
+  input  [183:0] W0_data,
+  input  [7:0]   W0_mask
+);
+
+  reg [183:0] Memory[0:15];
+  reg         _R0_en_d0;
+  reg [5:0]   _R0_addr_d0;
+  reg [3:0]   _W0_addr_d0, _R0_addr_d1;
+
+  always @(posedge R0_clk) begin
+    _R0_en_d0 <= R0_en;
+    _R0_addr_d0 <= R0_addr;
+    _R0_addr_d1 <= R0_addr[5:2] ^ R0_addr[1:0];
+  end // always @(posedge)
+
+  always @(posedge W0_clk) begin
+    _W0_addr_d0 <= W0_addr[5:2] ^ W0_addr[1:0];
+    if (W0_en & W0_mask[0])
+      Memory[_W0_addr_d0][32'h0 +: 23] <= W0_data[22:0];
+    if (W0_en & W0_mask[1])
+      Memory[_W0_addr_d0][32'h17 +: 23] <= W0_data[45:23];
+    if (W0_en & W0_mask[2])
+      Memory[_W0_addr_d0][32'h2E +: 23] <= W0_data[68:46];
+    if (W0_en & W0_mask[3])
+      Memory[_W0_addr_d0][32'h45 +: 23] <= W0_data[91:69];
+    if (W0_en & W0_mask[4])
+      Memory[_W0_addr_d0][32'h5C +: 23] <= W0_data[114:92];
+    if (W0_en & W0_mask[5])
+      Memory[_W0_addr_d0][32'h73 +: 23] <= W0_data[137:115];
+    if (W0_en & W0_mask[6])
+      Memory[_W0_addr_d0][32'h8A +: 23] <= W0_data[160:138];
+    if (W0_en & W0_mask[7])
+      Memory[_W0_addr_d0][32'hA1 +: 23] <= W0_data[183:161];
+  end // always @(posedge)
+
+  assign R0_data = _R0_en_d0 ? Memory[_R0_addr_d1] : 184'bx;
+endmodule
+