X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Farch%2Fx86%2Flib.c;h=8f8abe67ad3d956825d5aafac74c0f1ac7d39300;hb=6e41a8a3aa767cd5aeddbad393ce4f637a47a367;hp=0d493bb19fcd6a70b83e11d4d775113e409e5c15;hpb=0f8226381e0a19e8e8e11eafbf4589532e45d430;p=tpg%2Facess2.git

diff --git a/Kernel/arch/x86/lib.c b/Kernel/arch/x86/lib.c
index 0d493bb1..8f8abe67 100644
--- a/Kernel/arch/x86/lib.c
+++ b/Kernel/arch/x86/lib.c
@@ -1,6 +1,8 @@
 /*
- * AcessOS Microkernel Version
- * lib.c
+ * Acess2
+ *
+ * arch/x86/lib.c
+ * - General arch-specific stuff
  */
 #include <acess.h>
 #include <threads_int.h>
@@ -343,6 +345,25 @@ void *memcpyd(void *Dest, const void *Src, size_t Num)
 	return Dest;
 }
 
+Uint64 DivMod64U(Uint64 Num, Uint64 Div, Uint64 *Rem)
+{
+	Uint64	ret;
+	if( Div < 0x100000000ULL && Num < 0xFFFFFFFF * Div ) {
+		Uint32	rem, ret_32;
+		__asm__ __volatile__(
+			"div %4"
+			: "=a" (ret_32), "=d" (rem)
+			: "a" ( (Uint32)(Num & 0xFFFFFFFF) ), "d" ((Uint32)(Num >> 32)), "r" (Div)
+			);
+		if(Rem)	*Rem = rem;
+		return ret_32;
+	}
+
+	ret = __udivdi3(Num, Div);
+	if(Rem)	*Rem = __umoddi3(Num, Div);
+	return ret;
+}
+
 /**
  * \fn Uint64 __udivdi3(Uint64 Num, Uint64 Den)
  * \brief Divide two 64-bit integers