diff --git a/libctru/include/ctr/CSND.h b/libctru/include/ctr/CSND.h
index 070f19e..3909cdc 100644
--- a/libctru/include/ctr/CSND.h
+++ b/libctru/include/ctr/CSND.h
@@ -3,6 +3,8 @@
 
 #define CSND_SHAREDMEM_DEFAULT 0x10004000
 
+//See here regarding CSND shared-mem commands, etc: http://3dbrew.org/wiki/CSND_Shared_Memory
+
 Result CSND_initialize(u32* sharedMem);
 Result CSND_shutdown();
 
diff --git a/libctru/include/ctr/OS.h b/libctru/include/ctr/OS.h
new file mode 100644
index 0000000..ba7d67e
--- /dev/null
+++ b/libctru/include/ctr/OS.h
@@ -0,0 +1,7 @@
+#ifndef OS_H
+#define OS_H
+
+u32 OS_ConvertVaddr2Physaddr(u32 vaddr);
+
+#endif
+
diff --git a/libctru/include/ctr/svc.h b/libctru/include/ctr/svc.h
index d9cae4e..ddd5950 100644
--- a/libctru/include/ctr/svc.h
+++ b/libctru/include/ctr/svc.h
@@ -34,6 +34,7 @@ typedef enum{
 	Result svc_closeHandle(Handle handle);
 	u64 svc_getSystemTick();
 	Result svc_getSystemInfo(s64* out, u32 type, s32 param);
+	Result svc_getProcessInfo(s64* out, Handle process, u32 type);
 	Result svc_connectToPort(volatile Handle* out, const char* portName);
 	Result svc_sendSyncRequest(Handle session);
 	Result svc_getProcessId(u32 *out, Handle handle);
diff --git a/libctru/source/CSND.c b/libctru/source/CSND.c
index 6ab2a7c..f911b36 100644
--- a/libctru/source/CSND.c
+++ b/libctru/source/CSND.c
@@ -3,10 +3,12 @@
 #include <string.h>
 #include <ctr/types.h>
 
-#include <ctr/CSND.h>
+#include <ctr/OS.h>
 #include <ctr/svc.h>
 #include <ctr/srv.h>
 
+#include <ctr/CSND.h>
+
 //See here regarding CSND shared-mem commands, etc: http://3dbrew.org/wiki/CSND_Shared_Memory
 
 Handle CSND_handle = 0;
@@ -285,8 +287,8 @@ Result CSND_playsound(u32 channel, u32 looping, u32 encoding, u32 samplerate, u3
 	u32 physaddr0 = 0;
 	u32 physaddr1 = 0;
 
-	if((u32)vaddr0 >= 0x14000000 && (u32)vaddr0<0x1c000000)physaddr0 = (u32)vaddr0 + 0x0c000000;
-	if((u32)vaddr1 >= 0x14000000 && (u32)vaddr1<0x1c000000)physaddr1 = (u32)vaddr1 + 0x0c000000;
+	physaddr0 = OS_ConvertVaddr2Physaddr((u32)vaddr0);
+	physaddr1 = OS_ConvertVaddr2Physaddr((u32)vaddr1);
 
 	CSND_sharedmemtype0_cmde(channel, looping, encoding, samplerate, unk0, unk1, physaddr0, physaddr1, totalbytesize);
 	CSND_sharedmemtype0_cmd8(channel, samplerate);
diff --git a/libctru/source/OS.c b/libctru/source/OS.c
new file mode 100644
index 0000000..252f234
--- /dev/null
+++ b/libctru/source/OS.c
@@ -0,0 +1,16 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctr/types.h>
+#include <ctr/svc.h>
+#include <ctr/OS.h>
+
+u32 OS_ConvertVaddr2Physaddr(u32 vaddr)
+{
+	if(vaddr >= 0x14000000 && vaddr<0x1c000000)return vaddr + 0x0c000000;//LINEAR memory
+	if(vaddr >= 0x30000000 && vaddr<0x40000000)return vaddr - 0x10000000;//Only available under system-version v8.0 for certain processes, see here: http://3dbrew.org/wiki/SVC#enum_MemoryOperation
+	if(vaddr >= 0x1F000000 && vaddr<0x1F600000)return vaddr - 0x07000000;//VRAM
+
+	return 0;
+}
+
diff --git a/libctru/source/svc.s b/libctru/source/svc.s
index 7716f60..09b4d9c 100644
--- a/libctru/source/svc.s
+++ b/libctru/source/svc.s
@@ -152,6 +152,17 @@ svc_getSystemInfo:
 	ldr r4, [sp], #4
 	bx lr
 
+.global svc_getProcessInfo
+.type svc_getProcessInfo, %function
+svc_getProcessInfo:
+	stmfd sp!, {r0, r4}
+	svc 0x2B
+	ldr r4, [sp], #4
+	str r1, [r4]
+	str r2, [r4, #4]
+	ldr r4, [sp], #4
+	bx lr
+
 .global svc_connectToPort
 .type svc_connectToPort, %function
 svc_connectToPort: