1 files changed, 64 insertions, 40 deletions

diff --git a/arch/mips/isa/base.isa b/arch/mips/isa/base.isa
index 846d161b9..49de59e55 100644
--- a/arch/mips/isa/base.isa
+++ b/arch/mips/isa/base.isa
@@ -7,57 +7,81 @@
 
 //Outputs to decoder.hh
 output header {{
-        /**
-         * Base class for all MIPS static instructions.
-         */
-        class MipsStaticInst : public StaticInst<MIPSISA>
+    /**
+     * Base class for all MIPS static instructions.
+     */
+    class MipsStaticInst : public StaticInst
+    {
+      protected:
+
+        /// Make MipsISA register dependence tags directly visible in
+        /// this class and derived classes.  Maybe these should really
+        /// live here and not in the MipsISA namespace.
+        enum DependenceTags {
+            FP_Base_DepTag = MipsISA::FP_Base_DepTag,
+            Fpcr_DepTag = MipsISA::Fpcr_DepTag,
+            Uniq_DepTag = MipsISA::Uniq_DepTag,
+            IPR_Base_DepTag = MipsISA::IPR_Base_DepTag
+        };
+
+        // Constructor
+        MipsStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass)
+            : StaticInst(mnem, _machInst, __opClass)
         {
-        protected:
+        }
 
-                // Constructor.
-                MipsStaticInst(const char *mnem, MachInst _machInst, OpClass __opClass)
-                    : StaticInst<MIPSISA>(mnem, _machInst, __opClass)
-                {
-                }
+        /// Print a register name for disassembly given the unique
+        /// dependence tag number (FP or int).
+        void printReg(std::ostream &os, int reg) const;
 
-                std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
-        };
+        std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+    };
 
 }};
 
 //Ouputs to decoder.cc
 output decoder {{
 
-        std::string MipsStaticInst::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+    void MipsStaticInst::printReg(std::ostream &os, int reg) const
+    {
+        if (reg < FP_Base_DepTag) {
+            ccprintf(os, "r%d", reg);
+        }
+        else {
+            ccprintf(os, "f%d", reg - FP_Base_DepTag);
+        }
+    }
+
+    std::string MipsStaticInst::generateDisassembly(Addr pc, const SymbolTable *symtab) const
+    {
+        std::stringstream ss;
+
+        ccprintf(ss, "%-10s ", mnemonic);
+
+        // just print the first two source regs... if there's
+        // a third one, it's a read-modify-write dest (Rc),
+        // e.g. for CMOVxx
+        if(_numSrcRegs > 0)
+        {
+            printReg(ss, _srcRegIdx[0]);
+        }
+        if(_numSrcRegs > 1)
         {
-                std::stringstream ss;
-
-                ccprintf(ss, "%-10s ", mnemonic);
-
-                // just print the first two source regs... if there's
-                // a third one, it's a read-modify-write dest (Rc),
-                // e.g. for CMOVxx
-                if(_numSrcRegs > 0)
-                {
-                        printReg(ss, _srcRegIdx[0]);
-                }
-                if(_numSrcRegs > 1)
-                {
-                        ss << ",";
-                        printReg(ss, _srcRegIdx[1]);
-                }
-
-                // just print the first dest... if there's a second one,
-                // it's generally implicit
-                if(_numDestRegs > 0)
-                {
-                        if(_numSrcRegs > 0)
-                                ss << ",";
-                        printReg(ss, _destRegIdx[0]);
-                }
-
-                return ss.str();
+            ss << ",";
+            printReg(ss, _srcRegIdx[1]);
         }
 
+        // just print the first dest... if there's a second one,
+        // it's generally implicit
+        if(_numDestRegs > 0)
+        {
+            if(_numSrcRegs > 0)
+                ss << ",";
+            printReg(ss, _destRegIdx[0]);
+        }
+
+        return ss.str();
+    }
+
 }};