diff --git a/Source/Core/Core/PowerPC/Jit64/Jit_SystemRegisters.cpp b/Source/Core/Core/PowerPC/Jit64/Jit_SystemRegisters.cpp
index 5992fe9f28..9a4d124ee8 100644
--- a/Source/Core/Core/PowerPC/Jit64/Jit_SystemRegisters.cpp
+++ b/Source/Core/Core/PowerPC/Jit64/Jit_SystemRegisters.cpp
@@ -588,8 +588,8 @@ void Jit64::mcrxr(UGeckoInstruction inst)
   MOV(64, CROffset(inst.CRFD), R(RSCRATCH));
 
   // Clear XER[0-3]
-  MOV(8, PPCSTATE(xer_ca), Imm8(0));
-  MOV(8, PPCSTATE(xer_so_ov), Imm8(0));
+  static_assert(PPCSTATE_OFF(xer_ca) + 1 == PPCSTATE_OFF(xer_so_ov));
+  MOV(16, PPCSTATE(xer_ca), Imm8(0));
 }
 
 void Jit64::crXXX(UGeckoInstruction inst)
diff --git a/Source/Core/Core/PowerPC/JitArm64/JitArm64_SystemRegisters.cpp b/Source/Core/Core/PowerPC/JitArm64/JitArm64_SystemRegisters.cpp
index 626d3025d9..9ed2af8c86 100644
--- a/Source/Core/Core/PowerPC/JitArm64/JitArm64_SystemRegisters.cpp
+++ b/Source/Core/Core/PowerPC/JitArm64/JitArm64_SystemRegisters.cpp
@@ -144,7 +144,7 @@ void JitArm64::mcrxr(UGeckoInstruction inst)
   LDRB(IndexType::Unsigned, WB, PPC_REG, PPCSTATE_OFF(xer_so_ov));
 
   // [0 SO OV CA]
-  ADD(WA, WA, WB, ArithOption(WB, ShiftType::LSL, 2));
+  BFI(WA, WB, 1, 2);
   // [SO OV CA 0] << 3
   LSL(WA, WA, 4);
 
@@ -152,8 +152,8 @@ void JitArm64::mcrxr(UGeckoInstruction inst)
   LDR(XB, XB, XA);
 
   // Clear XER[0-3]
-  STRB(IndexType::Unsigned, ARM64Reg::WZR, PPC_REG, PPCSTATE_OFF(xer_ca));
-  STRB(IndexType::Unsigned, ARM64Reg::WZR, PPC_REG, PPCSTATE_OFF(xer_so_ov));
+  static_assert(PPCSTATE_OFF(xer_ca) + 1 == PPCSTATE_OFF(xer_so_ov));
+  STRH(IndexType::Unsigned, ARM64Reg::WZR, PPC_REG, PPCSTATE_OFF(xer_ca));
 
   gpr.Unlock(WA);
 }