Changeset 9183 in vbox for trunk/include

Timestamp:

May 28, 2008 1:49:04 AM (17 years ago)

Author:

vboxsync

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

31326

Message:

Fixed broken ASMMemFill32 implementation for VC80+. Use stosq when possible on AMD64 instead of stosd (ASMMemZero32, ASMMemFill32).

File:

• trunk/include/iprt/asm.h (modified) (2 diffs)

trunk/include/iprt/asm.h

@@ -3910 +3910 @@
 {
 # if RT_INLINE_ASM_USES_INTRIN
-    __stosd((unsigned long *)pv, 0, cb >> 2);
+#  ifdef RT_ARCH_AMD64
+    if (!(cb & 7))
+        __stosq((unsigned __int64 *)pv, 0, cb / 8);
+    else
+#  endif
+        __stosd((unsigned long *)pv, 0, cb / 4);
 
 # elif RT_INLINE_ASM_GNU_STYLE
@@ -3953 +3958 @@
 {
 # if RT_INLINE_ASM_USES_INTRIN
-    __stosd((unsigned long *)pv, 0, cb >> 2);
+#  ifdef RT_ARCH_AMD64
+    if (!(cb & 7))
+        __stosq((unsigned __int64 *)pv, RT_MAKE_U64(u32, u32), cb / 8);
+    else
+#  endif
+        __stosd((unsigned long *)pv, u32, cb / 4);
 
 # elif RT_INLINE_ASM_GNU_STYLE