diff --git a/bindings/ruby/unicorn_gem/ext/unicorn.c b/bindings/ruby/unicorn_gem/ext/unicorn.c
index c7979343..bd23086c 100644
--- a/bindings/ruby/unicorn_gem/ext/unicorn.c
+++ b/bindings/ruby/unicorn_gem/ext/unicorn.c
@@ -73,11 +73,11 @@ VALUE m_uc_emu_start(int argc, VALUE* argv, VALUE self){
     Data_Get_Struct(rb_iv_get(self,"@uch"), uc_engine, _uc);
 
     rb_scan_args(argc, argv, "22",&begin, &until, &timeout, &count);
-    if (NIL_P(timeout))         
-        timeout = INT2NUM(0);  
+    if (NIL_P(timeout))
+        timeout = INT2NUM(0);
 
-    if (NIL_P(count))         
-        count = INT2NUM(0); 
+    if (NIL_P(count))
+        count = INT2NUM(0);
 
     err = uc_emu_start(_uc, NUM2ULL(begin), NUM2ULL(until), NUM2INT(timeout), NUM2INT(count));
     if (err != UC_ERR_OK) {
@@ -133,7 +133,7 @@ VALUE m_uc_reg_read(VALUE self, VALUE reg_id){
             if (err != UC_ERR_OK) {
               rb_raise(UcError, "%s", uc_strerror(err));
             }
-            return LL2NUM(reg_value);
+            return ULL2NUM(reg_value);
     }
 
 }
@@ -165,7 +165,7 @@ VALUE m_uc_reg_write(VALUE self, VALUE reg_id, VALUE reg_value){
             err = uc_reg_write(_uc, NUM2INT(reg_id), &tmp);
             break;
     }
-    
+
     if (err != UC_ERR_OK) {
       rb_raise(UcError, "%s", uc_strerror(err));
     }
@@ -205,8 +205,8 @@ VALUE m_uc_mem_map(int argc, VALUE* argv, VALUE self){
     uc_engine *_uc;
     Data_Get_Struct(rb_iv_get(self,"@uch"), uc_engine, _uc);
     rb_scan_args(argc, argv, "21",&address, &size, &perms);
-    if (NIL_P(perms))         
-        perms = INT2NUM(UC_PROT_ALL);  
+    if (NIL_P(perms))
+        perms = INT2NUM(UC_PROT_ALL);
 
     err = uc_mem_map(_uc, NUM2ULL(address), NUM2UINT(size), NUM2UINT(perms));
     if (err != UC_ERR_OK) {
@@ -332,14 +332,14 @@ VALUE m_uc_hook_add(int argc, VALUE* argv, VALUE self){
     uc_engine *_uc;
     Data_Get_Struct(rb_iv_get(self,"@uch"), uc_engine, _uc);
     rb_scan_args(argc, argv, "24",&hook_type, &callback, &user_data, &begin, &end, &arg1);
-    if (NIL_P(begin))         
-        begin = ULL2NUM(1);  
+    if (NIL_P(begin))
+        begin = ULL2NUM(1);
 
-    if (NIL_P(end))         
-        end = ULL2NUM(0); 
+    if (NIL_P(end))
+        end = ULL2NUM(0);
 
-    if (NIL_P(arg1))         
-        arg1 = INT2NUM(0); 
+    if (NIL_P(arg1))
+        arg1 = INT2NUM(0);
 
     VALUE passthrough;
     uc_hook trace;
@@ -374,12 +374,12 @@ VALUE m_uc_hook_add(int argc, VALUE* argv, VALUE self){
     else if(htype == UC_HOOK_CODE || htype == UC_HOOK_BLOCK){
             err = uc_hook_add(_uc, &trace,  htype, cb_hook_code,(void *)passthrough, NUM2ULL(begin), NUM2ULL(end));
     }
-    else if (htype & UC_HOOK_MEM_READ_UNMAPPED 
-            || htype & UC_HOOK_MEM_WRITE_UNMAPPED 
-            || htype & UC_HOOK_MEM_FETCH_UNMAPPED 
-            || htype & UC_HOOK_MEM_READ_PROT 
-            || htype & UC_HOOK_MEM_WRITE_PROT 
-            || htype & UC_HOOK_MEM_FETCH_PROT 
+    else if (htype & UC_HOOK_MEM_READ_UNMAPPED
+            || htype & UC_HOOK_MEM_WRITE_UNMAPPED
+            || htype & UC_HOOK_MEM_FETCH_UNMAPPED
+            || htype & UC_HOOK_MEM_READ_PROT
+            || htype & UC_HOOK_MEM_WRITE_PROT
+            || htype & UC_HOOK_MEM_FETCH_PROT
             || htype & UC_HOOK_MEM_READ_INVALID
             || htype & UC_HOOK_MEM_WRITE_INVALID
             || htype & UC_HOOK_MEM_FETCH_INVALID
@@ -387,7 +387,7 @@ VALUE m_uc_hook_add(int argc, VALUE* argv, VALUE self){
             || htype & UC_HOOK_MEM_PROT
             || htype & UC_HOOK_MEM_INVALID) {
             err = uc_hook_add(_uc, &trace,  htype, cb_hook_mem_invalid,(void *)passthrough, NUM2ULL(begin), NUM2ULL(end));
-    } 
+    }
     else{
             err = uc_hook_add(_uc, &trace,  htype, cb_hook_mem_access,(void *)passthrough, NUM2ULL(begin), NUM2ULL(end));
     }