Changeset 60201 in vbox for trunk/include

Timestamp:

Mar 26, 2016 11:43:31 PM (9 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

106235

Message:

iprt/asm-amd64-x86.h: Use the Visual C++ halt() intrinsic when possible for ASMHalt().

File:

• trunk/include/iprt/asm-amd64-x86.h (modified) (3 diffs)

trunk/include/iprt/asm-amd64-x86.h

@@ -70 +70 @@
 #  pragma intrinsic(__writecr8)
 # endif
+# if RT_INLINE_ASM_USES_INTRIN >= 14
+#  pragma intrinsic(__halt)
+# endif
 # if RT_INLINE_ASM_USES_INTRIN >= 15
 #  pragma intrinsic(__readeflags)
@@ -2042 +2045 @@
  * Halts the CPU until interrupted.
  */
-#if RT_INLINE_ASM_EXTERNAL
+#if RT_INLINE_ASM_EXTERNAL && RT_INLINE_ASM_USES_INTRIN < 14
 DECLASM(void) ASMHalt(void);
 #else
@@ -2049 +2052 @@
 # if RT_INLINE_ASM_GNU_STYLE
     __asm__ __volatile__("hlt\n\t");
+# elif RT_INLINE_ASM_USES_INTRIN
+    __halt();
 # else
     __asm {