Changeset 87230 in vbox

Timestamp:

Jan 12, 2021 4:23:04 PM (4 years ago)

Author:

vboxsync

Message:

iprt/asm.h: Try fix x86/gcc version of ASMPRobeReadByte.

File:

• trunk/include/iprt/asm.h (modified) (1 diff)

trunk/include/iprt/asm.h

@@ -5429 +5429 @@
     uint8_t u8;
 #  if RT_INLINE_ASM_GNU_STYLE
-    __asm__ __volatile__("movb (%1), %0\n\t"
-                         : "=r" (u8)
-                         : "r" (pvByte));
+    __asm__ __volatile__("movb %1, %0\n\t"
+                         : "=q" (u8)
+                         : "m" (*(const uint8_t *)pvByte));
 #  else
     __asm