diff --git a/nx/include/switch/kernel/svc.h b/nx/include/switch/kernel/svc.h
index 03139c6f..2343bcf2 100644
--- a/nx/include/switch/kernel/svc.h
+++ b/nx/include/switch/kernel/svc.h
@@ -12,6 +12,17 @@
 /// Pseudo handle for the current thread
 #define CUR_THREAD_HANDLE 0xFFFF8000
 
+/// Memory permission bitmasks.
+typedef enum {
+    Perm_None     = 0,               ///< No permissions.
+    Perm_R        = BIT(0),          ///< Read permission.
+    Perm_W        = BIT(1),          ///< Write permission.
+    Perm_X        = BIT(2),          ///< Execute permission.
+    Perm_Rw       = Perm_R | Perm_W, ///< Read/write permissions.
+    Perm_Rx       = Perm_R | Perm_X, ///< Read/execute permissions.
+    Perm_DontCare = BIT(28),         ///< Don't care
+} Permission;
+
 typedef struct {
     u64 addr;
     u64 size;
diff --git a/nx/include/switch/types.h b/nx/include/switch/types.h
index 683c8d23..7146e5b6 100644
--- a/nx/include/switch/types.h
+++ b/nx/include/switch/types.h
@@ -18,42 +18,34 @@
 #endif
 #endif
 
-typedef uint8_t u8;       ///<  8-bit unsigned integer
-typedef uint16_t u16;     ///< 16-bit unsigned integer
-typedef uint32_t u32;     ///< 32-bit unsigned integer
-typedef uint64_t u64;     ///< 64-bit unsigned integer
-typedef __uint128_t u128; ///< 128-bit unsigned integer
+typedef uint8_t u8;       ///<   8-bit unsigned integer.
+typedef uint16_t u16;     ///<  16-bit unsigned integer.
+typedef uint32_t u32;     ///<  32-bit unsigned integer.
+typedef uint64_t u64;     ///<  64-bit unsigned integer.
+typedef __uint128_t u128; ///< 128-bit unsigned integer.
 
-typedef int8_t s8;   ///<  8-bit signed integer
-typedef int16_t s16; ///< 16-bit signed integer
-typedef int32_t s32; ///< 32-bit signed integer
-typedef int64_t s64; ///< 64-bit signed integer
+typedef int8_t s8;       ///<   8-bit signed integer.
+typedef int16_t s16;     ///<  16-bit signed integer.
+typedef int32_t s32;     ///<  32-bit signed integer.
+typedef int64_t s64;     ///<  64-bit signed integer.
+typedef __int128_t s128; ///< 128-bit unsigned integer.
 
-typedef volatile u8 vu8;   ///<  8-bit volatile unsigned integer.
-typedef volatile u16 vu16; ///< 16-bit volatile unsigned integer.
-typedef volatile u32 vu32; ///< 32-bit volatile unsigned integer.
-typedef volatile u64 vu64; ///< 64-bit volatile unsigned integer.
+typedef volatile u8 vu8;     ///<   8-bit volatile unsigned integer.
+typedef volatile u16 vu16;   ///<  16-bit volatile unsigned integer.
+typedef volatile u32 vu32;   ///<  32-bit volatile unsigned integer.
+typedef volatile u64 vu64;   ///<  64-bit volatile unsigned integer.
+typedef volatile u128 vu128; ///< 128-bit volatile unsigned integer.
 
-typedef volatile s8 vs8;   ///<  8-bit volatile signed integer.
-typedef volatile s16 vs16; ///< 16-bit volatile signed integer.
-typedef volatile s32 vs32; ///< 32-bit volatile signed integer.
-typedef volatile s64 vs64; ///< 64-bit volatile signed integer.
+typedef volatile s8 vs8;     ///<   8-bit volatile signed integer.
+typedef volatile s16 vs16;   ///<  16-bit volatile signed integer.
+typedef volatile s32 vs32;   ///<  32-bit volatile signed integer.
+typedef volatile s64 vs64;   ///<  64-bit volatile signed integer.
+typedef volatile s128 vs128; ///< 128-bit volatile signed integer.
 
 typedef u32 Handle;                 ///< Kernel object handle.
 typedef u32 Result;                 ///< Function error code result type.
 typedef void (*ThreadFunc)(void *); ///< Thread entrypoint function.
-typedef void (*voidfn)(void);       ///< Function without arguments nor return value.
-
-/// Permission bitmasks
-typedef enum {
-    PERM_NONE = 0,               ///< No permissions.
-    PERM_R    = 1,               ///< Read permission.
-    PERM_W    = 2,               ///< Write permission.
-    PERM_X    = 4,               ///< Execute permission.
-    PERM_RW   = PERM_R | PERM_W, ///< Read/write permissions.
-    PERM_RX   = PERM_R | PERM_X, ///< Read/execute permissions.
-    PERM_DONTCARE = 0x10000000,  ///< Don't care
-} Permission;
+typedef void (*VoidFn)(void);       ///< Function without arguments nor return value.
 
 /// Creates a bitmask from a bit number.
 #define BIT(n) (1U<<(n))
diff --git a/nx/source/kernel/jit.c b/nx/source/kernel/jit.c
index 4c500026..5e6cc58c 100644
--- a/nx/source/kernel/jit.c
+++ b/nx/source/kernel/jit.c
@@ -54,10 +54,10 @@ Result jitCreate(Jit* j, size_t size)
         rc = svcCreateJitMemory(&j->handle, j->src_addr, j->size);
         if (R_SUCCEEDED(rc))
         {
-            rc = svcMapJitMemory(j->handle, JitMapOperation_MapOwner, j->rw_addr, j->size, PERM_RW);
+            rc = svcMapJitMemory(j->handle, JitMapOperation_MapOwner, j->rw_addr, j->size, Perm_Rw);
             if (R_SUCCEEDED(rc))
             {
-                rc = svcMapJitMemory(j->handle, JitMapOperation_MapSlave, j->rx_addr, j->size, PERM_RX);
+                rc = svcMapJitMemory(j->handle, JitMapOperation_MapSlave, j->rx_addr, j->size, Perm_Rx);
 
                 if (R_FAILED(rc)) {
                     svcMapJitMemory(j->handle, JitMapOperation_UnmapOwner, j->rw_addr, j->size, 0);
@@ -113,7 +113,7 @@ Result jitTransitionToExecutable(Jit* j)
         rc = svcMapProcessCodeMemory(envGetOwnProcessHandle(), (u64) j->rx_addr, (u64) j->src_addr, j->size);
 
         if (R_SUCCEEDED(rc)) {
-            rc = svcSetProcessMemoryPermission(envGetOwnProcessHandle(), (u64) j->rx_addr, j->size, PERM_RX);
+            rc = svcSetProcessMemoryPermission(envGetOwnProcessHandle(), (u64) j->rx_addr, j->size, Perm_Rx);
 
             if (R_FAILED(rc)) {
                 jitTransitionToWritable(j);
diff --git a/nx/source/services/hid.c b/nx/source/services/hid.c
index d6bcda67..2d60daca 100644
--- a/nx/source/services/hid.c
+++ b/nx/source/services/hid.c
@@ -56,7 +56,7 @@ Result hidInitialize(void)
 
     if (R_SUCCEEDED(rc))
     {
-        shmemLoadRemote(&g_hidSharedmem, sharedmem_handle, 0x40000, PERM_R);
+        shmemLoadRemote(&g_hidSharedmem, sharedmem_handle, 0x40000, Perm_R);
 
         rc = shmemMap(&g_hidSharedmem);
     }
diff --git a/nx/source/services/nv.c b/nx/source/services/nv.c
index f0fd7fb0..f52a1327 100644
--- a/nx/source/services/nv.c
+++ b/nx/source/services/nv.c
@@ -50,7 +50,7 @@ Result nvInitialize(nvServiceType servicetype, size_t transfermem_size)
         g_nvIpcBufferSize = 0;
         rc = ipcQueryPointerBufferSize(g_nvSrv.handle, &g_nvIpcBufferSize);
 
-        if (R_SUCCEEDED(rc)) rc = tmemCreate(&g_nvTransfermem, transfermem_size, PERM_NONE);
+        if (R_SUCCEEDED(rc)) rc = tmemCreate(&g_nvTransfermem, transfermem_size, Perm_None);
 
         if (R_SUCCEEDED(rc)) rc = _nvInitialize(CUR_PROCESS_HANDLE, g_nvTransfermem.handle, transfermem_size);