diff --git a/libretro/msvc/msvc-2003-xbox1/msvc-2003-xbox1.vcproj b/libretro/msvc/msvc-2003-xbox1/msvc-2003-xbox1.vcproj
index 67f6705..5a3a36c 100644
--- a/libretro/msvc/msvc-2003-xbox1/msvc-2003-xbox1.vcproj
+++ b/libretro/msvc/msvc-2003-xbox1/msvc-2003-xbox1.vcproj
@@ -200,39 +200,6 @@
 				<File
 					RelativePath="..\..\libretro.c">
 				</File>
-				<File
-					RelativePath="..\..\scrc32.c">
-					<FileConfiguration
-						Name="Debug|Xbox">
-						<Tool
-							Name="VCCLCompilerTool"
-							CompileAs="1"/>
-					</FileConfiguration>
-					<FileConfiguration
-						Name="Profile|Xbox">
-						<Tool
-							Name="VCCLCompilerTool"
-							CompileAs="1"/>
-					</FileConfiguration>
-					<FileConfiguration
-						Name="Profile_FastCap|Xbox">
-						<Tool
-							Name="VCCLCompilerTool"
-							CompileAs="1"/>
-					</FileConfiguration>
-					<FileConfiguration
-						Name="Release|Xbox">
-						<Tool
-							Name="VCCLCompilerTool"
-							CompileAs="1"/>
-					</FileConfiguration>
-					<FileConfiguration
-						Name="Release_LTCG|Xbox">
-						<Tool
-							Name="VCCLCompilerTool"
-							CompileAs="1"/>
-					</FileConfiguration>
-				</File>
 			</Filter>
 			<Filter
 				Name="source"
@@ -344,69 +311,9 @@
 					</File>
 					<File
 						RelativePath="..\..\..\source\sound\ym2413.c">
-						<FileConfiguration
-							Name="Debug|Xbox">
-							<Tool
-								Name="VCCLCompilerTool"
-								Optimization="0"/>
-						</FileConfiguration>
-						<FileConfiguration
-							Name="Profile|Xbox">
-							<Tool
-								Name="VCCLCompilerTool"
-								Optimization="0"/>
-						</FileConfiguration>
-						<FileConfiguration
-							Name="Profile_FastCap|Xbox">
-							<Tool
-								Name="VCCLCompilerTool"
-								Optimization="0"/>
-						</FileConfiguration>
-						<FileConfiguration
-							Name="Release|Xbox">
-							<Tool
-								Name="VCCLCompilerTool"
-								Optimization="0"/>
-						</FileConfiguration>
-						<FileConfiguration
-							Name="Release_LTCG|Xbox">
-							<Tool
-								Name="VCCLCompilerTool"
-								Optimization="0"/>
-						</FileConfiguration>
 					</File>
 					<File
 						RelativePath="..\..\..\source\sound\ym2612.c">
-						<FileConfiguration
-							Name="Debug|Xbox">
-							<Tool
-								Name="VCCLCompilerTool"
-								Optimization="0"/>
-						</FileConfiguration>
-						<FileConfiguration
-							Name="Profile|Xbox">
-							<Tool
-								Name="VCCLCompilerTool"
-								Optimization="0"/>
-						</FileConfiguration>
-						<FileConfiguration
-							Name="Profile_FastCap|Xbox">
-							<Tool
-								Name="VCCLCompilerTool"
-								Optimization="0"/>
-						</FileConfiguration>
-						<FileConfiguration
-							Name="Release|Xbox">
-							<Tool
-								Name="VCCLCompilerTool"
-								Optimization="0"/>
-						</FileConfiguration>
-						<FileConfiguration
-							Name="Release_LTCG|Xbox">
-							<Tool
-								Name="VCCLCompilerTool"
-								Optimization="0"/>
-						</FileConfiguration>
 					</File>
 				</Filter>
 				<Filter
diff --git a/source/sound/ym2413.c b/source/sound/ym2413.c
index 223ccd1..e533d31 100644
--- a/source/sound/ym2413.c
+++ b/source/sound/ym2413.c
@@ -1245,11 +1245,13 @@ INLINE void set_ar_dr(int slot,int v)
 }
 
 /* set sustain level & release rate */
-INLINE void set_sl_rr_ym2413(int slot,int v)
+INLINE void set_sl_rr(int slot,int v)
 {
   YM2413_OPLL_CH   *CH   = &ym2413.P_CH[slot/2];
   YM2413_OPLL_SLOT *SLOT = &CH->SLOT[slot&1];
+
   SLOT->sl  = sl_tab[ v>>4 ];
+
   SLOT->rr  = (v&0x0f)? 16 + ((v&0x0f)<<2) : 0;
   SLOT->eg_sh_rr  = eg_rate_shift [SLOT->rr + SLOT->ksr ];
   SLOT->eg_sel_rr = eg_rate_select[SLOT->rr + SLOT->ksr ];
@@ -1263,8 +1265,8 @@ static void load_instrument(UINT32 chan, UINT32 slot, UINT8* inst )
   set_ksl_wave_fb(chan, inst[3]);
   set_ar_dr(slot,   inst[4]);
   set_ar_dr(slot+1, inst[5]);
-  set_sl_rr_ym2413(slot,   inst[6]);
-  set_sl_rr_ym2413(slot+1, inst[7]);
+  set_sl_rr(slot,   inst[6]);
+  set_sl_rr(slot+1, inst[7]);
 }
 
 static void update_instrument_zero(UINT8 r)
@@ -1343,7 +1345,7 @@ static void update_instrument_zero(UINT8 r)
       {
         if ((ym2413.instvol_r[chan]&0xf0)==0)
         {
-          set_sl_rr_ym2413(chan*2, inst[6]);
+          set_sl_rr(chan*2, inst[6]);
         }
       }
       break;
@@ -1353,7 +1355,7 @@ static void update_instrument_zero(UINT8 r)
       {
         if ((ym2413.instvol_r[chan]&0xf0)==0)
         {
-          set_sl_rr_ym2413(chan*2+1, inst[7]);
+          set_sl_rr(chan*2+1, inst[7]);
         }
       }
       break;
diff --git a/source/sound/ym2612.c b/source/sound/ym2612.c
index 70479da..663f066 100644
--- a/source/sound/ym2612.c
+++ b/source/sound/ym2612.c
@@ -1011,7 +1011,7 @@ INLINE void set_sr(FM_SLOT *SLOT,int v)
 }
 
 /* set release rate */
-INLINE void set_sl_rr_ym2612(FM_SLOT *SLOT,int v)
+INLINE void set_sl_rr(FM_SLOT *SLOT,int v)
 {
   SLOT->sl = sl_table[ v>>4 ];
   
@@ -1586,7 +1586,7 @@ INLINE void OPNWriteReg(int r, int v)
       break;
 
     case 0x80:  /* SL, RR */
-      set_sl_rr_ym2612(SLOT,v);
+      set_sl_rr(SLOT,v);
       break;
 
     case 0x90:  /* SSG-EG */