diff --git a/bochs/bx_debug/dbg_main.cc b/bochs/bx_debug/dbg_main.cc
index 7cc292388..8044f5f89 100644
--- a/bochs/bx_debug/dbg_main.cc
+++ b/bochs/bx_debug/dbg_main.cc
@@ -2944,25 +2944,33 @@ void bx_dbg_print_descriptor(Bit32u lo, Bit32u hi)
   unsigned s = (hi >> 12) & 0x1;
   unsigned d_b = (hi >> 22) & 0x1;
   unsigned g = (hi >> 23) & 0x1;
+#if BX_SUPPORT_X86_64
+  unsigned l = (hi >> 21) & 0x1;
+#endif
 
   // 32-bit trap gate, target=0010:c0108ec4, DPL=0, present=1
   // code segment, base=0000:00cfffff, length=0xffff
   if (s) {
     // either a code or a data segment. bit 11 (type file MSB) then says
     // 0=data segment, 1=code seg
-    if (type&8) {
-      dbg_printf("Code segment, base=0x%08x, limit=0x%08x, %s%s%s, %d-bit\n",
+    if (IS_CODE_SEGMENT(type)) {
+      dbg_printf("Code segment, base=0x%08x, limit=0x%08x, %s%s%s",
         base, g ? (limit * 4096 + 4095) : limit,
-        (type&2)? "Execute/Read" : "Execute-Only",
-        (type&4)? ", Conforming" : "",
-        (type&1)? ", Accessed" : "",
-        d_b ? 32 : 16);
+        IS_CODE_SEGMENT_READABLE(type) ? "Execute/Read" : "Execute-Only",
+        IS_CODE_SEGMENT_CONFORMING(type)? ", Conforming" : "Non-Conforming",
+        IS_SEGMENT_ACCESSED(type)? ", Accessed" : "");
+#if BX_SUPPORT_X86_64
+      if (l && !d_b)
+        dbg_printf(", 64-bit\n");
+      else
+#endif
+        dbg_printf(", %d-bit\n", d_b ? 32 : 16);
     } else {
       dbg_printf("Data segment, base=0x%08x, limit=0x%08x, %s%s%s\n",
         base, g ? (limit * 4096 + 4095) : limit,
-        (type&2)? "Read/Write" : "Read-Only",
-        (type&4)? ", Expand-down" : "",
-        (type&1)? ", Accessed" : "");
+        IS_DATA_SEGMENT_WRITEABLE(type)? "Read/Write" : "Read-Only",
+        IS_DATA_SEGMENT_EXPAND_DOWN(type)? ", Expand-down" : "",
+        IS_SEGMENT_ACCESSED(type)? ", Accessed" : "");
     }
   } else {
     // types from IA32-devel-guide-3, page 3-15.
diff --git a/bochs/cpu/cpudb/atom_n270.cc b/bochs/cpu/cpudb/atom_n270.cc
index 60657a5bc..c97627581 100644
--- a/bochs/cpu/cpudb/atom_n270.cc
+++ b/bochs/cpu/cpudb/atom_n270.cc
@@ -55,7 +55,7 @@ void atom_n270_t::get_cpuid_leaf(Bit32u function, Bit32u subfunction, cpuid_func
     get_ext_cpuid_brand_string_leaf(function, leaf);
     return;
   case 0x80000005:
-    get_ext_cpuid_leaf_5(leaf);
+    get_reserved_leaf(leaf);
     return;
   case 0x80000006:
     get_ext_cpuid_leaf_6(leaf);
@@ -521,15 +521,7 @@ void atom_n270_t::get_ext_cpuid_brand_string_leaf(Bit32u function, cpuid_functio
 #endif
 }
 
-// leaf 0x80000005 //
-void atom_n270_t::get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const
-{
-  // CPUID function 0x800000005 - L1 Cache and TLB Identifiers
-  leaf->eax = 0;
-  leaf->ebx = 0;
-  leaf->ecx = 0; // reserved for Intel
-  leaf->edx = 0;
-}
+// leaf 0x80000005 - L1 Cache and TLB Identifiers (reserved for Intel)
 
 // leaf 0x80000006 //
 void atom_n270_t::get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const
diff --git a/bochs/cpu/cpudb/atom_n270.h b/bochs/cpu/cpudb/atom_n270.h
index aabe6484c..b43c41f91 100644
--- a/bochs/cpu/cpudb/atom_n270.h
+++ b/bochs/cpu/cpudb/atom_n270.h
@@ -55,7 +55,6 @@ private:
   void get_ext_cpuid_leaf_0(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_1(cpuid_function_t *leaf) const;
   void get_ext_cpuid_brand_string_leaf(Bit32u function, cpuid_function_t *leaf) const;
-  void get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_7(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_8(cpuid_function_t *leaf) const;
diff --git a/bochs/cpu/cpudb/core2_penryn_t9600.cc b/bochs/cpu/cpudb/core2_penryn_t9600.cc
index def68418e..09abf1ca1 100644
--- a/bochs/cpu/cpudb/core2_penryn_t9600.cc
+++ b/bochs/cpu/cpudb/core2_penryn_t9600.cc
@@ -58,7 +58,7 @@ void core2_penryn_t9600_t::get_cpuid_leaf(Bit32u function, Bit32u subfunction, c
     get_ext_cpuid_brand_string_leaf(function, leaf);
     return;
   case 0x80000005:
-    get_ext_cpuid_leaf_5(leaf);
+    get_reserved_leaf(leaf);
     return;
   case 0x80000006:
     get_ext_cpuid_leaf_6(leaf);
@@ -603,15 +603,7 @@ void core2_penryn_t9600_t::get_ext_cpuid_brand_string_leaf(Bit32u function, cpui
 #endif
 }
 
-// leaf 0x80000005 //
-void core2_penryn_t9600_t::get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const
-{
-  // CPUID function 0x800000005 - L1 Cache and TLB Identifiers
-  leaf->eax = 0;
-  leaf->ebx = 0;
-  leaf->ecx = 0; // reserved for Intel
-  leaf->edx = 0;
-}
+// leaf 0x80000005 - L1 Cache and TLB Identifiers (reserved for Intel)
 
 // leaf 0x80000006 //
 void core2_penryn_t9600_t::get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const
diff --git a/bochs/cpu/cpudb/core2_penryn_t9600.h b/bochs/cpu/cpudb/core2_penryn_t9600.h
index ae9586c60..43f37e0b9 100644
--- a/bochs/cpu/cpudb/core2_penryn_t9600.h
+++ b/bochs/cpu/cpudb/core2_penryn_t9600.h
@@ -59,7 +59,6 @@ private:
   void get_ext_cpuid_leaf_0(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_1(cpuid_function_t *leaf) const;
   void get_ext_cpuid_brand_string_leaf(Bit32u function, cpuid_function_t *leaf) const;
-  void get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_7(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_8(cpuid_function_t *leaf) const;
diff --git a/bochs/cpu/cpudb/core_duo_t2400_yonah.cc b/bochs/cpu/cpudb/core_duo_t2400_yonah.cc
index 17c0950bd..6f6e6dd65 100644
--- a/bochs/cpu/cpudb/core_duo_t2400_yonah.cc
+++ b/bochs/cpu/cpudb/core_duo_t2400_yonah.cc
@@ -55,7 +55,7 @@ void core_duo_t2400_yonah_t::get_cpuid_leaf(Bit32u function, Bit32u subfunction,
     get_ext_cpuid_brand_string_leaf(function, leaf);
     return;
   case 0x80000005:
-    get_ext_cpuid_leaf_5(leaf);
+    get_reserved_leaf(leaf);
     return;
   case 0x80000006:
     get_ext_cpuid_leaf_6(leaf);
@@ -519,15 +519,7 @@ void core_duo_t2400_yonah_t::get_ext_cpuid_brand_string_leaf(Bit32u function, cp
 #endif
 }
 
-// leaf 0x80000005 //
-void core_duo_t2400_yonah_t::get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const
-{
-  // CPUID function 0x800000005 - L1 Cache and TLB Identifiers
-  leaf->eax = 0;
-  leaf->ebx = 0;
-  leaf->ecx = 0; // reserved for Intel
-  leaf->edx = 0;
-}
+// leaf 0x80000005 - L1 Cache and TLB Identifiers (reserved for Intel)
 
 // leaf 0x80000006 //
 void core_duo_t2400_yonah_t::get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const
diff --git a/bochs/cpu/cpudb/core_duo_t2400_yonah.h b/bochs/cpu/cpudb/core_duo_t2400_yonah.h
index 6d487b7d7..764019b33 100644
--- a/bochs/cpu/cpudb/core_duo_t2400_yonah.h
+++ b/bochs/cpu/cpudb/core_duo_t2400_yonah.h
@@ -58,7 +58,6 @@ private:
   void get_ext_cpuid_leaf_0(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_1(cpuid_function_t *leaf) const;
   void get_ext_cpuid_brand_string_leaf(Bit32u function, cpuid_function_t *leaf) const;
-  void get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_7(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_8(cpuid_function_t *leaf) const;
diff --git a/bochs/cpu/cpudb/corei5_arrandale_m520.cc b/bochs/cpu/cpudb/corei5_arrandale_m520.cc
index c1fbcaa06..82e2518f9 100644
--- a/bochs/cpu/cpudb/corei5_arrandale_m520.cc
+++ b/bochs/cpu/cpudb/corei5_arrandale_m520.cc
@@ -61,7 +61,7 @@ void corei5_arrandale_m520_t::get_cpuid_leaf(Bit32u function, Bit32u subfunction
     get_ext_cpuid_brand_string_leaf(function, leaf);
     return;
   case 0x80000005:
-    get_ext_cpuid_leaf_5(leaf);
+    get_reserved_leaf(leaf);
     return;
   case 0x80000006:
     get_ext_cpuid_leaf_6(leaf);
@@ -674,15 +674,7 @@ void corei5_arrandale_m520_t::get_ext_cpuid_brand_string_leaf(Bit32u function, c
 #endif
 }
 
-// leaf 0x80000005 //
-void corei5_arrandale_m520_t::get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const
-{
-  // CPUID function 0x800000005 - L1 Cache and TLB Identifiers
-  leaf->eax = 0;
-  leaf->ebx = 0;
-  leaf->ecx = 0; // reserved for Intel
-  leaf->edx = 0;
-}
+// leaf 0x80000005 - L1 Cache and TLB Identifiers (reserved for Intel)
 
 // leaf 0x80000006 //
 void corei5_arrandale_m520_t::get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const
diff --git a/bochs/cpu/cpudb/corei5_arrandale_m520.h b/bochs/cpu/cpudb/corei5_arrandale_m520.h
index c221de105..f28b39f9f 100644
--- a/bochs/cpu/cpudb/corei5_arrandale_m520.h
+++ b/bochs/cpu/cpudb/corei5_arrandale_m520.h
@@ -59,7 +59,6 @@ private:
   void get_ext_cpuid_leaf_0(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_1(cpuid_function_t *leaf) const;
   void get_ext_cpuid_brand_string_leaf(Bit32u function, cpuid_function_t *leaf) const;
-  void get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_7(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_8(cpuid_function_t *leaf) const;
diff --git a/bochs/cpu/cpudb/corei5_lynnfield_750.cc b/bochs/cpu/cpudb/corei5_lynnfield_750.cc
index 6994a1086..e9b197c26 100644
--- a/bochs/cpu/cpudb/corei5_lynnfield_750.cc
+++ b/bochs/cpu/cpudb/corei5_lynnfield_750.cc
@@ -61,7 +61,7 @@ void corei5_lynnfield_750_t::get_cpuid_leaf(Bit32u function, Bit32u subfunction,
     get_ext_cpuid_brand_string_leaf(function, leaf);
     return;
   case 0x80000005:
-    get_ext_cpuid_leaf_5(leaf);
+    get_reserved_leaf(leaf);
     return;
   case 0x80000006:
     get_ext_cpuid_leaf_6(leaf);
@@ -650,15 +650,7 @@ void corei5_lynnfield_750_t::get_ext_cpuid_brand_string_leaf(Bit32u function, cp
 #endif
 }
 
-// leaf 0x80000005 //
-void corei5_lynnfield_750_t::get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const
-{
-  // CPUID function 0x800000005 - L1 Cache and TLB Identifiers
-  leaf->eax = 0;
-  leaf->ebx = 0;
-  leaf->ecx = 0; // reserved for Intel
-  leaf->edx = 0;
-}
+// leaf 0x80000005 - L1 Cache and TLB Identifiers (reserved for Intel)
 
 // leaf 0x80000006 //
 void corei5_lynnfield_750_t::get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const
diff --git a/bochs/cpu/cpudb/corei5_lynnfield_750.h b/bochs/cpu/cpudb/corei5_lynnfield_750.h
index 24603d24f..53f8a45c0 100644
--- a/bochs/cpu/cpudb/corei5_lynnfield_750.h
+++ b/bochs/cpu/cpudb/corei5_lynnfield_750.h
@@ -59,7 +59,6 @@ private:
   void get_ext_cpuid_leaf_0(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_1(cpuid_function_t *leaf) const;
   void get_ext_cpuid_brand_string_leaf(Bit32u function, cpuid_function_t *leaf) const;
-  void get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_7(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_8(cpuid_function_t *leaf) const;
diff --git a/bochs/cpu/cpudb/corei7_ivy_bridge_3770K.cc b/bochs/cpu/cpudb/corei7_ivy_bridge_3770K.cc
index a83bdf3bb..7f1e85ad8 100755
--- a/bochs/cpu/cpudb/corei7_ivy_bridge_3770K.cc
+++ b/bochs/cpu/cpudb/corei7_ivy_bridge_3770K.cc
@@ -66,7 +66,7 @@ void corei7_ivy_bridge_3770k_t::get_cpuid_leaf(Bit32u function, Bit32u subfuncti
     get_ext_cpuid_brand_string_leaf(function, leaf);
     return;
   case 0x80000005:
-    get_ext_cpuid_leaf_5(leaf);
+    get_reserved_leaf(leaf);
     return;
   case 0x80000006:
     get_ext_cpuid_leaf_6(leaf);
@@ -779,15 +779,7 @@ void corei7_ivy_bridge_3770k_t::get_ext_cpuid_brand_string_leaf(Bit32u function,
 #endif
 }
 
-// leaf 0x80000005 //
-void corei7_ivy_bridge_3770k_t::get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const
-{
-  // CPUID function 0x800000005 - L1 Cache and TLB Identifiers
-  leaf->eax = 0;
-  leaf->ebx = 0;
-  leaf->ecx = 0; // reserved for Intel
-  leaf->edx = 0;
-}
+// leaf 0x80000005 - L1 Cache and TLB Identifiers (reserved for Intel)
 
 // leaf 0x80000006 //
 void corei7_ivy_bridge_3770k_t::get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const
diff --git a/bochs/cpu/cpudb/corei7_ivy_bridge_3770K.h b/bochs/cpu/cpudb/corei7_ivy_bridge_3770K.h
index ea195dcd4..71fe7590e 100755
--- a/bochs/cpu/cpudb/corei7_ivy_bridge_3770K.h
+++ b/bochs/cpu/cpudb/corei7_ivy_bridge_3770K.h
@@ -61,7 +61,6 @@ private:
   void get_ext_cpuid_leaf_0(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_1(cpuid_function_t *leaf) const;
   void get_ext_cpuid_brand_string_leaf(Bit32u function, cpuid_function_t *leaf) const;
-  void get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_7(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_8(cpuid_function_t *leaf) const;
diff --git a/bochs/cpu/cpudb/corei7_sandy_bridge_2600K.cc b/bochs/cpu/cpudb/corei7_sandy_bridge_2600K.cc
index 33311d79b..0ca7a7ce7 100644
--- a/bochs/cpu/cpudb/corei7_sandy_bridge_2600K.cc
+++ b/bochs/cpu/cpudb/corei7_sandy_bridge_2600K.cc
@@ -64,7 +64,7 @@ void corei7_sandy_bridge_2600k_t::get_cpuid_leaf(Bit32u function, Bit32u subfunc
     get_ext_cpuid_brand_string_leaf(function, leaf);
     return;
   case 0x80000005:
-    get_ext_cpuid_leaf_5(leaf);
+    get_reserved_leaf(leaf);
     return;
   case 0x80000006:
     get_ext_cpuid_leaf_6(leaf);
@@ -739,15 +739,7 @@ void corei7_sandy_bridge_2600k_t::get_ext_cpuid_brand_string_leaf(Bit32u functio
 #endif
 }
 
-// leaf 0x80000005 //
-void corei7_sandy_bridge_2600k_t::get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const
-{
-  // CPUID function 0x800000005 - L1 Cache and TLB Identifiers
-  leaf->eax = 0;
-  leaf->ebx = 0;
-  leaf->ecx = 0; // reserved for Intel
-  leaf->edx = 0;
-}
+// leaf 0x80000005 - L1 Cache and TLB Identifiers (reserved for Intel)
 
 // leaf 0x80000006 //
 void corei7_sandy_bridge_2600k_t::get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const
diff --git a/bochs/cpu/cpudb/corei7_sandy_bridge_2600K.h b/bochs/cpu/cpudb/corei7_sandy_bridge_2600K.h
index 02a714161..9c5067233 100644
--- a/bochs/cpu/cpudb/corei7_sandy_bridge_2600K.h
+++ b/bochs/cpu/cpudb/corei7_sandy_bridge_2600K.h
@@ -60,7 +60,6 @@ private:
   void get_ext_cpuid_leaf_0(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_1(cpuid_function_t *leaf) const;
   void get_ext_cpuid_brand_string_leaf(Bit32u function, cpuid_function_t *leaf) const;
-  void get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_7(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_8(cpuid_function_t *leaf) const;
diff --git a/bochs/cpu/cpudb/p4_prescott_celeron_336.cc b/bochs/cpu/cpudb/p4_prescott_celeron_336.cc
index 994dc1530..3f93b57a6 100644
--- a/bochs/cpu/cpudb/p4_prescott_celeron_336.cc
+++ b/bochs/cpu/cpudb/p4_prescott_celeron_336.cc
@@ -53,7 +53,7 @@ void p4_prescott_celeron_336_t::get_cpuid_leaf(Bit32u function, Bit32u subfuncti
     get_ext_cpuid_brand_string_leaf(function, leaf);
     return;
   case 0x80000005:
-    get_ext_cpuid_leaf_5(leaf);
+    get_reserved_leaf(leaf);
     return;
   case 0x80000006:
     get_ext_cpuid_leaf_6(leaf);
@@ -392,15 +392,7 @@ void p4_prescott_celeron_336_t::get_ext_cpuid_brand_string_leaf(Bit32u function,
 #endif
 }
 
-// leaf 0x80000005 //
-void p4_prescott_celeron_336_t::get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const
-{
-  // CPUID function 0x800000005 - L1 Cache and TLB Identifiers
-  leaf->eax = 0;
-  leaf->ebx = 0;
-  leaf->ecx = 0; // reserved for Intel
-  leaf->edx = 0;
-}
+// leaf 0x80000005 - L1 Cache and TLB Identifiers (reserved for Intel)
 
 // leaf 0x80000006 //
 void p4_prescott_celeron_336_t::get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const
diff --git a/bochs/cpu/cpudb/p4_prescott_celeron_336.h b/bochs/cpu/cpudb/p4_prescott_celeron_336.h
index fb7f3effb..6c7855e84 100644
--- a/bochs/cpu/cpudb/p4_prescott_celeron_336.h
+++ b/bochs/cpu/cpudb/p4_prescott_celeron_336.h
@@ -52,7 +52,6 @@ private:
   void get_ext_cpuid_leaf_0(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_1(cpuid_function_t *leaf) const;
   void get_ext_cpuid_brand_string_leaf(Bit32u function, cpuid_function_t *leaf) const;
-  void get_ext_cpuid_leaf_5(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_6(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_7(cpuid_function_t *leaf) const;
   void get_ext_cpuid_leaf_8(cpuid_function_t *leaf) const;
diff --git a/bochs/cpu/descriptor.h b/bochs/cpu/descriptor.h
index 482e70b02..11a0a7db3 100644
--- a/bochs/cpu/descriptor.h
+++ b/bochs/cpu/descriptor.h
@@ -155,14 +155,6 @@ union {
   #define IS_LONG64_SEGMENT(descriptor)   (0)
 #endif
 
-#define IS_CODE_SEGMENT(type)             (((type) >> 3) & 0x1)
-#define IS_CODE_SEGMENT_CONFORMING(type)  (((type) >> 2) & 0x1)
-#define IS_DATA_SEGMENT_EXPAND_DOWN(type) (((type) >> 2) & 0x1)
-#define IS_CODE_SEGMENT_READABLE(type)    (((type) >> 1) & 0x1)
-#define IS_DATA_SEGMENT_WRITEABLE(type)   (((type) >> 1) & 0x1)
-
-#define IS_SEGMENT_ACCESSED(type)         ((type) & 0x1)
-
 #define BX_SEGMENT_CODE                   (0x8)
 #define BX_SEGMENT_DATA_EXPAND_DOWN       (0x4)
 #define BX_SEGMENT_CODE_CONFORMING        (0x4)
@@ -170,6 +162,13 @@ union {
 #define BX_SEGMENT_CODE_READ              (0x2)
 #define BX_SEGMENT_ACCESSED               (0x1)
 
+#define IS_CODE_SEGMENT(type)             ((type) & BX_SEGMENT_CODE)
+#define IS_CODE_SEGMENT_CONFORMING(type)  ((type) & BX_SEGMENT_CODE_CONFORMING)
+#define IS_DATA_SEGMENT_EXPAND_DOWN(type) ((type) & BX_SEGMENT_DATA_EXPAND_DOWN)
+#define IS_CODE_SEGMENT_READABLE(type)    ((type) & BX_SEGMENT_CODE_READ)
+#define IS_DATA_SEGMENT_WRITEABLE(type)   ((type) & BX_SEGMENT_DATA_WRITE)
+#define IS_SEGMENT_ACCESSED(type)         ((type) & BX_SEGMENT_ACCESSED)
+
 #define IS_DATA_SEGMENT(type) (! IS_CODE_SEGMENT(type))
 #define IS_CODE_SEGMENT_NON_CONFORMING(type) \
             (! IS_CODE_SEGMENT_CONFORMING(type))