Merge branch 'priv-tests' of github.com:kipmacsaigoren/cvw into priv-tests

testbench/tests.vh

@@ -47,8 +47,9 @@ string tvpaths[] = '{
     "ieu",
     "ebu",
     "csrwrites",
-    "fpu",
-    "priv"
+    "priv",
+    "ifu",
+    "fpu"
   };
 
   string coremark[] = '{

tests/coverage/ifu.S

@@ -0,0 +1,40 @@
+///////////////////////////////////////////
+// ifu.S
+//
+// Written: sriley@g.hmc.edu 28 March 2023
+//
+// Purpose: Test coverage for IFU
+//
+// A component of the CORE-V-WALLY configurable RISC-V project.
+// 
+// Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University
+//
+// SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
+//
+// Licensed under the Solderpad Hardware License v 2.1 (the “License”); you may not use this file 
+// except in compliance with the License, or, at your option, the Apache License version 2.0. You 
+// may obtain a copy of the License at
+//
+// https://solderpad.org/licenses/SHL-2.1/
+//
+// Unless required by applicable law or agreed to in writing, any work distributed under the 
+// License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
+// either express or implied. See the License for the specific language governing permissions 
+// and limitations under the License.
+////////////////////////////////////////////////////////////////////////////////////////////////
+
+// load code to initalize stack, handle interrupts, terminate
+#include "WALLY-init-lib.h"
+
+main:
+    # turn floating point on
+    li t0, 0x2000
+    csrs mstatus, t0
+
+    # calling compressed floating point load double instruction
+    //.halfword 0x2000 // CL type compressed floating-point ld-->funct3,imm,rs1',imm,rd',op
+                        // binary version 0000 0000 0000 0000 0010 0000 0000 0000
+    mv s0, sp
+    c.fld fs0, 0(s0)
+
+    j done