Fixed compilation failing on i386

Architecture/i686/LockAssembly.S

@@ -0,0 +1,70 @@
+# https://en.wikipedia.org/wiki/Spinlock
+
+.text
+
+# void SpinLock_Lock(volatile uint32_t *LockData)
+.global SpinLock_Lock
+
+# void SpinLock_Unlock(volatile uint32_t *LockData)
+.global SpinLock_Unlock
+
+# uint32_t SpinLock_CheckAndLock(volatile uint32_t *LockData)
+.global SpinLock_CheckAndLock
+
+# uint32_t SpinLock_WithTimeout(volatile uint32_t *LockData, volatile uint32_t Iterations)
+.global SpinLock_WithTimeout
+
+# DeadLockHandler(volatile <struct> *LockStructure)
+.extern DeadLockHandler
+
+SpinLock_Lock:
+    xor %eax,%eax
+    lock btsl $0,(%edi)
+    jc Spin
+    ret
+Spin:
+    inc %eax
+    cmp $0x10000000,%eax
+    je Deadlock
+    pause
+    test $1,(%edi)
+    jnz Spin
+    jmp SpinLock_Lock
+
+SpinLock_Unlock:
+    lock btrl $0,(%edi)
+    ret
+
+Deadlock:
+    push %edi
+    push %edi
+    xor %eax,%eax
+    call DeadLockHandler
+    pop %edi
+    pop %edi
+    jmp Spin
+
+SpinLock_CheckAndLock:
+    xor %eax,%eax
+    lock btsl $0,(%edi)
+    setc %al
+    ret
+
+SpinLock_WithTimeout:
+    xor %eax,%eax
+SpinTimeout:
+    inc %eax
+    lock btsl $0,(%edi)
+    setc %bl
+    cmp $0,%bl
+    je LockAquired
+    cmp %esi,%eax
+    je LockTimedOut
+    pause
+    jmp SpinTimeout
+LockAquired:
+    mov $1,%eax
+    ret
+LockTimedOut:
+    xor %eax,%eax
+    ret