[ros-bugs] [Bug 916] New: Definition of InterlockedDecrement

[ReactOS.Bugzilla at reactos.org]

http://www.reactos.org/bugzilla/show_bug.cgi?id=916

           Summary: Definition of InterlockedDecrement
           Product: ReactOS
           Version: 0.2.8
          Platform: x86 Hardware
        OS/Version: ReactOS
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Kernel
        AssignedTo: ros-bugs at reactos.com
        ReportedBy: razvan_hobeanu at yahoo.com
         QAContact: ros-bugs at reactos.com


00084 LONG 
00085 STDCALL
00086 InterlockedDecrement(LPLONG lpAddend)
00087 {
00088         long ret;
00089 #ifdef _M_IX86
00090         __asm__
00091         (                
00092            "\tlock\n"  /* for SMP systems */
00093            "\txaddl %0, (%1)\n"
00094            "\tdecl %0\n"
00095            :"=r" (ret)
00096            :"r" (lpAddend), "0" (-1)
00097            : "memory"
00098         );
00099 #elif defined(_M_PPC)
00100         ret = *lpAddend;
00101         ret = InterlockedExchangeAdd( lpAddend, ret - 1 );
00102 #else
00103 #error Unknown compiler for inline assembler
00104 #endif
00105         return ret;
00106 
00107 
00108 }

Line 101 should be:

ret = InterlockedExchangeAdd( lpAddend, -1 ) -1;

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