feat(L08): add subroutines and ABI card

2026-07-21 17:19:51 +02:00
commit ea50415a5e
42 changed files with 7250 additions and 0 deletions
@@ -0,0 +1,23 @@
+module tb;
+    logic [4:0] register_index;
+    logic [2:0] abi_class;
+    integer index, args=0, saved=0, temporaries=0, fixed=0;
+    string trace_file;
+    abi_registers dut (.*);
+    initial begin
+        if ($value$plusargs("trace=%s", trace_file)) begin $dumpfile(trace_file); $dumpvars(0, tb); end
+        for (index=0; index<32; index+=1) begin
+            register_index=index[4:0]; #1;
+            case (abi_class)
+                3: args+=1;
+                4: saved+=1;
+                5: temporaries+=1;
+                0,1,2,6: fixed+=1;
+                default: $fatal(1, "FAIL class index=%0d class=%0d", index, abi_class);
+            endcase
+        end
+        if (args!=8 || saved!=12 || temporaries!=7 || fixed!=5) $fatal(1, "FAIL counts %0d %0d %0d %0d", args,saved,temporaries,fixed);
+        $display("PASS task02 args=8 saved=12 temporaries=7 fixed=5");
+        $finish;
+    end
+endmodule