1 files changed, 1 insertions, 13 deletions
diff --git a/src/arch/mips/isa_traits.hh b/src/arch/mips/isa_traits.hh
index 3450c273e..ed4ed9877 100644
--- a/src/arch/mips/isa_traits.hh
+++ b/src/arch/mips/isa_traits.hh
@@ -190,13 +190,6 @@ namespace MipsISA
     // semantically meaningful register indices
     const int ZeroReg = 0;
     const int AssemblerReg = 1;
-    const int ReturnValueReg = 2;
-    const int ReturnValueReg1 = 2;
-    const int ReturnValueReg2 = 3;
-    const int ArgumentReg0 = 4;
-    const int ArgumentReg1 = 5;
-    const int ArgumentReg2 = 6;
-    const int ArgumentReg3 = 7;
     const int KernelReg0 = 26;
     const int KernelReg1 = 27;
     const int GlobalPointerReg = 28;
@@ -204,12 +197,7 @@ namespace MipsISA
     const int FramePointerReg = 30;
     const int ReturnAddressReg = 31;
 
-    const int ArgumentReg[] = {4, 5, 6, 7};
-    const int NumArgumentRegs = sizeof(ArgumentReg) / sizeof(const int);
-
-    const int SyscallNumReg = ReturnValueReg1;
-    const int SyscallPseudoReturnReg = ReturnValueReg2;
-    const int SyscallSuccessReg = ArgumentReg3;
+    const int SyscallPseudoReturnReg = 3;
 
     const int LogVMPageSize = 13;       // 8K bytes
     const int VMPageSize = (1 << LogVMPageSize);