4 files changed, 12 insertions, 6 deletions
diff --git a/arch/mips/isa/formats/branch.isa b/arch/mips/isa/formats/branch.isa
index 0d2ad7855..cb0f4ac9c 100644
--- a/arch/mips/isa/formats/branch.isa
+++ b/arch/mips/isa/formats/branch.isa
@@ -187,6 +187,12 @@ output decoder {{
         else
             ccprintf(ss, "0x%x", target);
 
+        string inst_name = mnemonic;
+
+        if (inst_name.substr(inst_name.length()-2,inst_name.length()) == "al"){
+            ccprintf(ss, " (r31=0x%x)",pc+8);
+        }
+
         return ss.str();
     }
 
@@ -265,8 +271,6 @@ def format Branch(code,*flags) {{
     code += '  NNPC = NNPC;\n'
     code += '} \n'
 
-    code += 'cout << hex << "NPC: " << NPC << " + " << disp << " = " << NNPC << endl;'
-
     iop = InstObjParams(name, Name, 'Branch', CodeBlock(code),
                         ('IsDirectControl', 'IsCondControl'))
 
@@ -305,8 +309,6 @@ def format Jump(code,*flags) {{
     if strlen > 1 and name[1:] == 'al':
             code = 'r31 = NNPC;\n' + code
 
-    #code += 'if(NNPC == 0x80000638) { NNPC = r31; cout << "SKIPPING JUMP TO SIM_GET_MEM_CONF" << endl;}'
-    #code += 'target = NNPC;'
 
     iop = InstObjParams(name, Name, 'Jump', CodeBlock(code),\
                         ('IsIndirectControl', 'IsUncondControl'))
diff --git a/arch/mips/isa/formats/noop.isa b/arch/mips/isa/formats/noop.isa
index d35179005..2aa4816e3 100644
--- a/arch/mips/isa/formats/noop.isa
+++ b/arch/mips/isa/formats/noop.isa
@@ -88,3 +88,7 @@ def format BasicOperateWithNopCheck(code, *opt_args) {{
     exec_output = BasicExecute.subst(iop)
 }};
 
+def format Nop() {{
+        decode_block = 'return new Nop(\"sll r0,r0,0\",machInst);\n'
+}};
+
diff --git a/arch/mips/isa/formats/unimp.isa b/arch/mips/isa/formats/unimp.isa
index adbd5b5b1..890cf8d1a 100644
--- a/arch/mips/isa/formats/unimp.isa
+++ b/arch/mips/isa/formats/unimp.isa
@@ -111,7 +111,7 @@ output exec {{
     {
         panic("attempt to execute unimplemented instruction '%s' "
               "(inst 0x%08x, opcode 0x%x)", mnemonic, machInst, OPCODE);
-        return UnimplementedOpcodeFault;
+        return new UnimplementedOpcodeFault;
     }
 
     Fault
diff --git a/arch/mips/isa/formats/unknown.isa b/arch/mips/isa/formats/unknown.isa
index 4601b3684..47d166255 100644
--- a/arch/mips/isa/formats/unknown.isa
+++ b/arch/mips/isa/formats/unknown.isa
@@ -42,7 +42,7 @@ output exec {{
     {
         panic("attempt to execute unknown instruction "
               "(inst 0x%08x, opcode 0x%x)", machInst, OPCODE);
-        return UnimplementedOpcodeFault;
+        return new UnimplementedOpcodeFault;
     }
 }};