diff --git a/Source/Project64/UserInterface/API.js b/Source/Project64/UserInterface/API.js
index 2dc524ece..96b7af450 100644
--- a/Source/Project64/UserInterface/API.js
+++ b/Source/Project64/UserInterface/API.js
@@ -91,15 +91,15 @@ function AddressRange(start, end)
     Object.freeze(this)
 }
 
-const ADDR_ANY = new AddressRange(0x00000000, 0x100000000)
-const ADDR_ANY_KUSEG = new AddressRange(0x00000000, 0x80000000)
-const ADDR_ANY_KSEG0 = new AddressRange(0x80000000, 0xA0000000)
-const ADDR_ANY_KSEG1 = new AddressRange(0xA0000000, 0xC0000000)
-const ADDR_ANY_KSEG2 = new AddressRange(0xC0000000, 0x100000000)
-const ADDR_ANY_RDRAM = new AddressRange(0x80000000, 0x80800000)
-const ADDR_ANY_RDRAM_UNC = new AddressRange(0xA0000000, 0xA0800000)
-const ADDR_ANY_CART_ROM = new AddressRange(0x90000000, 0x96000000)
-const ADDR_ANY_CART_ROM_UNC = new AddressRange(0xB0000000, 0xB6000000)
+const ADDR_ANY = new AddressRange(0x00000000, 0xFFFFFFFF)
+const ADDR_ANY_KUSEG = new AddressRange(0x00000000, 0x7FFFFFFF)
+const ADDR_ANY_KSEG0 = new AddressRange(0x80000000, 0x9FFFFFFF)
+const ADDR_ANY_KSEG1 = new AddressRange(0xA0000000, 0xBFFFFFFF)
+const ADDR_ANY_KSEG2 = new AddressRange(0xC0000000, 0xFFFFFFFF)
+const ADDR_ANY_RDRAM = new AddressRange(0x80000000, 0x807FFFFF)
+const ADDR_ANY_RDRAM_UNC = new AddressRange(0xA0000000, 0xA07FFFFF)
+const ADDR_ANY_CART_ROM = new AddressRange(0x90000000, 0x95FFFFFF)
+const ADDR_ANY_CART_ROM_UNC = new AddressRange(0xB0000000, 0xB5FFFFFF)
 
 const asm = {
     gprname: function(num)
diff --git a/Source/Project64/UserInterface/Debugger/ScriptHook.cpp b/Source/Project64/UserInterface/Debugger/ScriptHook.cpp
index fecf459a6..9a9f616f6 100644
--- a/Source/Project64/UserInterface/Debugger/ScriptHook.cpp
+++ b/Source/Project64/UserInterface/Debugger/ScriptHook.cpp
@@ -51,7 +51,7 @@ void CScriptHook::InvokeByAddressInRange(uint32_t address)
     int nCallbacks = m_Callbacks.size();
     for (int i = 0; i < nCallbacks; i++)
     {
-        if (address == m_Callbacks[i].param || (address >= m_Callbacks[i].param && address < m_Callbacks[i].param2))
+        if (address == m_Callbacks[i].param || (address >= m_Callbacks[i].param && address <= m_Callbacks[i].param2))
         {
             m_Callbacks[i].scriptInstance->Invoke(m_Callbacks[i].heapptr, address);
             return;
@@ -64,7 +64,7 @@ void CScriptHook::InvokeByAddressInRange_MaskedOpcode(uint32_t pc, uint32_t opco
     int nCallbacks = m_Callbacks.size();
     for (int i = 0; i < nCallbacks; i++)
     {
-        if (pc == m_Callbacks[i].param || (pc >= m_Callbacks[i].param && pc < m_Callbacks[i].param2))
+        if (pc == m_Callbacks[i].param || (pc >= m_Callbacks[i].param && pc <= m_Callbacks[i].param2))
         {
             if ((m_Callbacks[i].param3 & m_Callbacks[i].param4) == (opcode & m_Callbacks[i].param4))
             {
@@ -86,7 +86,7 @@ void CScriptHook::InvokeByAddressInRange_GPRValue(uint32_t pc)
 		uint32_t registers = m_Callbacks[i].param3;
 		uint32_t value = m_Callbacks[i].param4;
 
-		if (!(pc == startAddress || (pc >= startAddress && pc < endAddress)))
+		if (!(pc == startAddress || (pc >= startAddress && pc <= endAddress)))
 		{
 			continue;
 		}
diff --git a/apidoc.htm b/apidoc.htm
index 57f7a1c64..1a3fc4709 100644
--- a/apidoc.htm
+++ b/apidoc.htm
@@ -855,18 +855,18 @@ server.on('connection', function(socket)
 			Creates an immutable object with <span class="snip">start</span> and <span class="snip">end</span> address properties.<br>
 			The following <b>AddressRange</b> objects are defined globally:
 			<pre>
-<b>ADDR_ANY</b>              0x00000000 : 0x100000000 Any 32-bit address
+<b>ADDR_ANY</b>              0x00000000 : 0xFFFFFFFF Any 32-bit address
 
-<b>ADDR_ANY_KUSEG</b>        0x00000000 : 0x80000000  MIPS user mode TLB mapped segment
-<b>ADDR_ANY_KSEG0</b>        0x80000000 : 0xA0000000  MIPS cached unmapped segment
-<b>ADDR_ANY_KSEG1</b>        0xA0000000 : 0xC0000000  MIPS uncached unmapped segment
-<b>ADDR_ANY_KSEG2</b>        0xC0000000 : 0x100000000 MIPS kernel mode TLB mapped segment
+<b>ADDR_ANY_KUSEG</b>        0x00000000 : 0x7FFFFFFF  MIPS user mode TLB mapped segment
+<b>ADDR_ANY_KSEG0</b>        0x80000000 : 0x9FFFFFFF  MIPS cached unmapped segment
+<b>ADDR_ANY_KSEG1</b>        0xA0000000 : 0xBFFFFFFF  MIPS uncached unmapped segment
+<b>ADDR_ANY_KSEG2</b>        0xC0000000 : 0xFFFFFFFF MIPS kernel mode TLB mapped segment
 
-<b>ADDR_ANY_RDRAM</b>        0x80000000 : 0x80800000 Cached RDRAM
-<b>ADDR_ANY_RDRAM_UNC</b>    0xA0000000 : 0xA0800000 Uncached RDRAM
+<b>ADDR_ANY_RDRAM</b>        0x80000000 : 0x807FFFFF Cached RDRAM
+<b>ADDR_ANY_RDRAM_UNC</b>    0xA0000000 : 0xA07FFFFF Uncached RDRAM
 
-<b>ADDR_ANY_CART_ROM</b>     0x90000000 : 0x96000000 Cached cartridge ROM
-<b>ADDR_ANY_CART_ROM_UNC</b> 0xB0000000 : 0xB6000000 Uncached cartridge ROM
+<b>ADDR_ANY_CART_ROM</b>     0x90000000 : 0x95FFFFFF Cached cartridge ROM
+<b>ADDR_ANY_CART_ROM_UNC</b> 0xB0000000 : 0xB5FFFFFF Uncached cartridge ROM
 </pre>
 		</div>
 	</div>