Changeset 87222 in vbox for trunk/src/VBox/Runtime/common

Timestamp:

Jan 12, 2021 10:27:17 AM (4 years ago)

Author:

vboxsync

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

142178

Message:

IPRT: Added missing ASMAtomicUoXorU32 function. bugref:9898

File:

• trunk/src/VBox/Runtime/common/asm/ASMAtomicUoXorU32.asm (copied) (copied from trunk/src/VBox/Runtime/common/asm/ASMAtomicUoAndU32.asm ) (3 diffs)

trunk/src/VBox/Runtime/common/asm/ASMAtomicUoXorU32.asm

@@ -1 +1 @@
 ; $Id$
 ;; @file
-; IPRT - ASMAtomicUoAndU32().
+; IPRT - ASMAtomicUoXorU32().
 ;
 
@@ -33 +33 @@
 
 ;;
-; Atomically OR an unsigned 32-bit value, unordered.
+; Atomically XOR an unsigned 32-bit value, unordered.
 ;
 ; @param    pu32     x86:esp+4   gcc:rdi  msc:rcx
@@ -40 +40 @@
 ; @returns  void
 ;
-BEGINPROC_EXPORTED ASMAtomicUoAndU32
+BEGINPROC_EXPORTED ASMAtomicUoXorU32
 %ifdef RT_ARCH_AMD64
  %ifdef ASM_CALL64_MSC
-        and     [rcx], edx
+        xor     [rcx], edx
  %else
-        and     [rdi], esi
+        xor     [rdi], esi
  %endif
 %elifdef RT_ARCH_X86
         mov     ecx, [esp + 04h]
         mov     edx, [esp + 08h]
-        and     [ecx], edx
+        xor     [ecx], edx
 %endif
         ret
-ENDPROC ASMAtomicUoAndU32
+ENDPROC ASMAtomicUoXorU32