diff --git a/src/dos/dos_misc.cpp b/src/dos/dos_misc.cpp
index 6d4079b7..3ef6a1ae 100644
--- a/src/dos/dos_misc.cpp
+++ b/src/dos/dos_misc.cpp
@@ -16,7 +16,7 @@
  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
-/* $Id: dos_misc.cpp,v 1.21 2008-10-05 14:44:52 qbix79 Exp $ */
+/* $Id: dos_misc.cpp,v 1.22 2009-04-28 18:47:04 c2woody Exp $ */
 
 #include "dosbox.h"
 #include "callback.h"
@@ -88,12 +88,12 @@ static bool DOS_MultiplexFunctions(void) {
 			} else {
 				Bit8u drive=Files[reg_bx]->GetDrive();
 
-				mem_writew(sftptr+sftofs+0x02,Files[reg_bx]->flags&3);			// file open mode
-				mem_writeb(sftptr+sftofs+0x04,(Bit8u)(Files[reg_bx]->attr));	// file attribute
-				mem_writew(sftptr+sftofs+0x05,0x40|drive);						// device info word
-				mem_writed(sftptr+sftofs+0x07,RealMake(dos.tables.dpb,drive));	// dpb of the drive
-				mem_writew(sftptr+sftofs+0x0d,Files[reg_bx]->time);				// packed file time
-				mem_writew(sftptr+sftofs+0x0f,Files[reg_bx]->date);				// packed file date
+				mem_writew(sftptr+sftofs+0x02,(Bit16u)(Files[reg_bx]->flags&3));	// file open mode
+				mem_writeb(sftptr+sftofs+0x04,(Bit8u)(Files[reg_bx]->attr));		// file attribute
+				mem_writew(sftptr+sftofs+0x05,0x40|drive);							// device info word
+				mem_writed(sftptr+sftofs+0x07,RealMake(dos.tables.dpb,drive));		// dpb of the drive
+				mem_writew(sftptr+sftofs+0x0d,Files[reg_bx]->time);					// packed file time
+				mem_writew(sftptr+sftofs+0x0f,Files[reg_bx]->date);					// packed file date
 				Bit32u curpos=0;
 				Files[reg_bx]->Seek(&curpos,DOS_SEEK_CUR);
 				Bit32u endpos=0;
diff --git a/src/hardware/dbopl.cpp b/src/hardware/dbopl.cpp
index 02106d86..99e45c90 100644
--- a/src/hardware/dbopl.cpp
+++ b/src/hardware/dbopl.cpp
@@ -332,7 +332,7 @@ inline void Operator::UpdateRelease( const Chip* chip ) {
 }
 
 inline void Operator::UpdateAttenuation( ) {
-	Bit8u kslBase = (chanData >> SHIFT_KSLBASE) & 0xff;
+	Bit8u kslBase = (Bit8u)((chanData >> SHIFT_KSLBASE) & 0xff);
 	Bit32u tl = reg40 & 0x3f;
 	Bit8u kslShift = KslShiftTable[ reg40 >> 6 ];
 	//Make sure the attenuation goes to the right bits
@@ -357,7 +357,7 @@ void Operator::UpdateFrequency(  ) {
 void Operator::UpdateRates( const Chip* chip ) {
 	//Mame seems to reverse this where enabling ksr actually lowers
 	//the rate, but pdf manuals says otherwise?
-	Bit8u newKsr = (chanData >> SHIFT_KEYCODE) & 0xff;
+	Bit8u newKsr = (Bit8u)((chanData >> SHIFT_KEYCODE) & 0xff);
 	if ( !( reg20 & MASK_KSR ) ) {
 		newKsr >>= 2;
 	}