diff --git a/Source/Core/Common/MathUtil.h b/Source/Core/Common/MathUtil.h
index e56da6703..8b1d9e54b 100644
--- a/Source/Core/Common/MathUtil.h
+++ b/Source/Core/Common/MathUtil.h
@@ -8,6 +8,7 @@
 #include <array>
 #include <cstdlib>
 #include <vector>
+#include <limits>
 
 #include "Common/CommonTypes.h"
 
diff --git a/Source/Core/Core/DSP/DSPDisassembler.h b/Source/Core/Core/DSP/DSPDisassembler.h
index e02e221d9..7064e551d 100644
--- a/Source/Core/Core/DSP/DSPDisassembler.h
+++ b/Source/Core/Core/DSP/DSPDisassembler.h
@@ -8,6 +8,7 @@
 #include <map>
 #include <string>
 #include <vector>
+#include <limits>
 
 #include "Common/CommonTypes.h"
 
diff --git a/Source/Core/Core/DSP/Jit/x64/DSPEmitter.cpp b/Source/Core/Core/DSP/Jit/x64/DSPEmitter.cpp
index 410d4d6bd..f410bc17d 100644
--- a/Source/Core/Core/DSP/Jit/x64/DSPEmitter.cpp
+++ b/Source/Core/Core/DSP/Jit/x64/DSPEmitter.cpp
@@ -478,12 +478,12 @@ Gen::OpArg DSPEmitter::M_SDSP_external_interrupt_waiting()
 
 Gen::OpArg DSPEmitter::M_SDSP_r_st(size_t index)
 {
-  return MDisp(R15, static_cast<int>(offsetof(SDSP, r.st[index])));
+  return MDisp(R15, static_cast<int>(offsetof(SDSP, r.st) + sizeof(SDSP::r.st[0]) * index));
 }
 
 Gen::OpArg DSPEmitter::M_SDSP_reg_stack_ptr(size_t index)
 {
-  return MDisp(R15, static_cast<int>(offsetof(SDSP, reg_stack_ptr[index])));
+  return MDisp(R15, static_cast<int>(offsetof(SDSP, reg_stack_ptr) + sizeof(SDSP::reg_stack_ptr[0]) * index));
 }
 }
 }
diff --git a/Source/Core/Core/DSP/Jit/x64/DSPJitRegCache.cpp b/Source/Core/Core/DSP/Jit/x64/DSPJitRegCache.cpp
index 9ffbfabfb..545550cf9 100644
--- a/Source/Core/Core/DSP/Jit/x64/DSPJitRegCache.cpp
+++ b/Source/Core/Core/DSP/Jit/x64/DSPJitRegCache.cpp
@@ -35,25 +35,30 @@ static Gen::OpArg GetRegisterPointer(size_t reg)
   case DSP_REG_AR1:
   case DSP_REG_AR2:
   case DSP_REG_AR3:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ar[reg - DSP_REG_AR0])));
+    return MDisp(
+        R15, static_cast<int>(offsetof(SDSP, r.ar) + sizeof(SDSP::r.ar[0]) * (reg - DSP_REG_AR0)));
   case DSP_REG_IX0:
   case DSP_REG_IX1:
   case DSP_REG_IX2:
   case DSP_REG_IX3:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ix[reg - DSP_REG_IX0])));
+    return MDisp(
+        R15, static_cast<int>(offsetof(SDSP, r.ix) + sizeof(SDSP::r.ix[0]) * (reg - DSP_REG_IX0)));
   case DSP_REG_WR0:
   case DSP_REG_WR1:
   case DSP_REG_WR2:
   case DSP_REG_WR3:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.wr[reg - DSP_REG_WR0])));
+    return MDisp(
+        R15, static_cast<int>(offsetof(SDSP, r.wr) + sizeof(SDSP::r.wr[0]) * (reg - DSP_REG_WR0)));
   case DSP_REG_ST0:
   case DSP_REG_ST1:
   case DSP_REG_ST2:
   case DSP_REG_ST3:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.st[reg - DSP_REG_ST0])));
+    return MDisp(
+        R15, static_cast<int>(offsetof(SDSP, r.st) + sizeof(SDSP::r.st[0]) * (reg - DSP_REG_ST0)));
   case DSP_REG_ACH0:
   case DSP_REG_ACH1:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ac[reg - DSP_REG_ACH0].h)));
+    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ac[0].h) +
+                                       sizeof(SDSP::r.ac[0]) * (reg - DSP_REG_ACH0)));
   case DSP_REG_CR:
     return MDisp(R15, static_cast<int>(offsetof(SDSP, r.cr)));
   case DSP_REG_SR:
@@ -68,22 +73,28 @@ static Gen::OpArg GetRegisterPointer(size_t reg)
     return MDisp(R15, static_cast<int>(offsetof(SDSP, r.prod.m2)));
   case DSP_REG_AXL0:
   case DSP_REG_AXL1:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ax[reg - DSP_REG_AXL0].l)));
+    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ax[0].l) +
+                                       sizeof(SDSP::r.ax[0]) * (reg - DSP_REG_AXL0)));
   case DSP_REG_AXH0:
   case DSP_REG_AXH1:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ax[reg - DSP_REG_AXH0].h)));
+    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ax[0].h) +
+                                       sizeof(SDSP::r.ax[0]) * (reg - DSP_REG_AXH0)));
   case DSP_REG_ACL0:
   case DSP_REG_ACL1:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ac[reg - DSP_REG_ACL0].l)));
+    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ac[0].l) +
+                                       sizeof(SDSP::r.ac[0]) * (reg - DSP_REG_ACL0)));
   case DSP_REG_ACM0:
   case DSP_REG_ACM1:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ac[reg - DSP_REG_ACM0].m)));
+    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ac[0].m) +
+                                       sizeof(SDSP::r.ac[0]) * (reg - DSP_REG_ACM0)));
   case DSP_REG_AX0_32:
   case DSP_REG_AX1_32:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ax[reg - DSP_REG_AX0_32].val)));
+    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ax[0].val) +
+                                       sizeof(SDSP::r.ax[0]) * (reg - DSP_REG_AX0_32)));
   case DSP_REG_ACC0_64:
   case DSP_REG_ACC1_64:
-    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ac[reg - DSP_REG_ACC0_64].val)));
+    return MDisp(R15, static_cast<int>(offsetof(SDSP, r.ac[0].val) +
+                                       sizeof(SDSP::r.ac[0]) * (reg - DSP_REG_ACC0_64)));
   case DSP_REG_PROD_64:
     return MDisp(R15, static_cast<int>(offsetof(SDSP, r.prod.val)));
   default: