xglobals,thread: Use short operands in assembly

Author: lhmouse

mcfgthread/thread.h

@@ -310,7 +310,7 @@ uint32_t
 _MCF_thread_self_tid(void) __MCF_NOEXCEPT
   {
     uint32_t __tid;
-    __asm__ ("{ movl %%gs:0x48, %0 | mov %0, dword ptr gs:[0x48] }" : "=r"(__tid));
+    __asm__ ("{ movl %%gs:0x48, %0 | mov %0, gs:[0x48] }" : "=r"(__tid));
     return __tid;
   }
 #elif (defined _M_X64 && !defined _M_ARM64EC) && defined _MSC_VER
@@ -332,7 +332,7 @@ uint32_t
 _MCF_thread_self_tid(void) __MCF_NOEXCEPT
   {
     uint32_t __tid;
-    __asm__ ("{ movl %%fs:0x24, %0 | mov %0, dword ptr fs:[0x24] }" : "=r"(__tid));
+    __asm__ ("{ movl %%fs:0x24, %0 | mov %0, fs:[0x24] }" : "=r"(__tid));
     return __tid;
   }
 #elif defined _M_IX86 && defined _MSC_VER

mcfgthread/xglobals.i

@@ -142,17 +142,17 @@ __MCF_ALWAYS_INLINE
 __MCF_seh_i386_node*
 __MCF_seh_i386_install(__MCF_seh_i386_node* __seh_node) __MCF_NOEXCEPT
   {
-    __asm__ volatile ("mov %0, dword ptr fs:[0]" : "=r"(__seh_node->__next));
+    __asm__ volatile ("mov %0, fs:[0]" : "=r"(__seh_node->__next));
     __seh_node->__filter = (DWORD) __MCF_seh_top;
-    __asm__ volatile ("mov dword ptr fs:[0], %0" : : "r"(__seh_node));
+    __asm__ volatile ("mov fs:[0], %0" : : "r"(__seh_node));
     return __seh_node;
   }
 
 __MCF_ALWAYS_INLINE
 void
 __MCF_seh_i386_cleanup(__MCF_seh_i386_node* __seh_node) __MCF_NOEXCEPT
   {
-    __asm__ volatile ("mov dword ptr fs:[0], %0" : : "r"(__seh_node->__next));
+    __asm__ volatile ("mov fs:[0], %0" : : "r"(__seh_node->__next));
   }
 
 #  define __MCF_SEH_I386_NODE_NY(n)  __MCF_seh_i386_node_##n