--- trunk/reactos/lib/rosrtl/misc/intrlck.c 2005-03-08 21:02:50 UTC (rev 13889)
+++ trunk/reactos/lib/rosrtl/misc/intrlck.c 2005-03-08 22:39:53 UTC (rev 13890)
@@ -15,6 +15,29 @@
* Copied from kernel32
*/
+/* PowerPC Functions from gatomic.c in glib
+ *
+ * GLIB - Library of useful routines for C programming
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * g_atomic_*: atomic operations.
+ * Copyright (C) 2003 Sebastian Wilhelmi
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
/************************************************************************
* InterlockedIncrement *
@@ -36,6 +59,7 @@
InterlockedIncrement(PLONG Addend)
{
long ret = 0;
+#ifdef _M_IX86
__asm__
(
"\tlock\n" /* for SMP systems */
@@ -48,6 +72,10 @@
"2:\n"
:"=r" (ret):"r" (Addend), "0" (0): "memory"
);
+#elif defined(_M_PPC)
+ ret = *Addend;
+ ret = InterlockedExchangeAdd( Addend, ret + 1 );
+#endif
return ret;
}
@@ -67,6 +95,7 @@
InterlockedDecrement(LPLONG lpAddend)
{
long ret;
+#ifdef _M_IX86
__asm__
(
"\tlock\n" /* for SMP systems */
@@ -79,6 +108,10 @@
"2:\n"
:"=r" (ret):"r" (lpAddend), "0" (0): "memory"
);
+#elif defined(_M_PPC)
+ ret = *lpAddend;
+ ret = InterlockedExchangeAdd( lpAddend, ret - 1 );
+#endif
return ret;
@@ -97,14 +130,16 @@
STDCALL
InterlockedExchange(LPLONG target, LONG value )
{
-
long ret;
+#ifdef _M_IX86
__asm__ ( /* lock for SMP systems */
"lock\n\txchgl %0,(%1)"
:"=r" (ret):"r" (target), "0" (value):"memory" );
+#elif defined(_M_PPC)
+ ret = *target;
+ while( InterlockedCompareExchange( target, value, ret ) != value );
+#endif
return ret;
-
-
}
/************************************************************************
@@ -124,8 +159,21 @@
LONG Comperand )
{
LONG ret;
+#ifdef _M_IX86
__asm__ __volatile__( "lock; cmpxchgl %2,(%1)"
: "=a" (ret) : "r" (Destination), "r" (Exchange), "0" (Comperand) : "memory" );
+#elif defined(_M_PPC)
+ __asm__ __volatile__ ("sync\n"
+ "1: lwarx %0,0,%1\n"
+ " subf. %0,%2,%0\n"
+ " bne 2f\n"
+ " stwcx. %3,0,%1\n"
+ " bne- 1b\n"
+ "2: isync"
+ : "=&r" (ret)
+ : "b" (Destination), "r" (Comperand), "r" (Exchange)
+ : "cr0", "memory");
+#endif
return ret;
}
@@ -145,14 +193,18 @@
LONG Increment
)
{
-
LONG ret;
+#ifdef _M_IX86
__asm__ ( /* lock for SMP systems */
"lock\n\t"
"xaddl %0,(%1)"
:"=r" (ret)
:"r" (Addend), "0" (Increment)
:"memory" );
+#elif defined(_M_PPC)
+ do
+ ret = *Addend;
+ while (!InterlockedCompareExchange(Addend, ret, ret + Increment));
+#endif
return ret;
-
}