MIPS: Major fixes and clean-up in asm. for instruction encoding.

src/mips64/simulator-mips64.h

Index: src/mips64/simulator-mips64.h
diff --git a/src/mips64/simulator-mips64.h b/src/mips64/simulator-mips64.h
index a4271ce3105fb222ee33f7091e19a379f4f8b75a..63172389a35a1aaaa3dafd3d5356480df1a95795 100644
--- a/src/mips64/simulator-mips64.h
+++ b/src/mips64/simulator-mips64.h
@@ -313,17 +313,17 @@ class Simulator {
   inline int32_t SetDoubleLOW(double* addr);
 
   // functions called from DecodeTypeRegister
-  void DecodeTypeRegisterCOP1(Instruction* instr, const int64_t& rs_reg,
+  void DecodeTypeRegisterCOP1(Instruction* instr, const int32_t& rs_reg,
                               const int64_t& rs, const uint64_t& rs_u,
-                              const int64_t& rt_reg, const int64_t& rt,
-                              const uint64_t& rt_u, const int64_t& rd_reg,
+                              const int32_t& rt_reg, const int64_t& rt,
+                              const uint64_t& rt_u, const int32_t& rd_reg,
                               const int32_t& fr_reg, const int32_t& fs_reg,
-                              const int32_t& ft_reg, const int64_t& fd_reg,
+                              const int32_t& ft_reg, const int32_t& fd_reg,
                               int64_t& alu_out);
 
   void DecodeTypeRegisterCOP1X(Instruction* instr, const int32_t& fr_reg,
                                const int32_t& fs_reg, const int32_t& ft_reg,
-                               const int64_t& fd_reg);
+                               const int32_t& fd_reg);
 
   void DecodeTypeRegisterSPECIAL(
       Instruction* instr, const int64_t& rs_reg, const int64_t& rs,
@@ -341,10 +341,10 @@ class Simulator {
                                   int64_t& alu_out);
 
   void DecodeTypeRegisterSRsType(Instruction* instr, const int32_t& fs_reg,
-                                 const int32_t& ft_reg, const int64_t& fd_reg);
+                                 const int32_t& ft_reg, const int32_t& fd_reg);
 
   void DecodeTypeRegisterDRsType(Instruction* instr, const int32_t& fs_reg,
-                                 const int64_t& ft_reg, const int32_t& fd_reg);
+                                 const int32_t& ft_reg, const int32_t& fd_reg);
 
   void DecodeTypeRegisterWRsType(Instruction* instr, const int32_t& fs_reg,
                                  const int32_t& fd_reg, int64_t& alu_out);