match some Z2Calc functions (#72)

* Z2Calc OK

* inline definitions in random.h and format

* set -enum int compiler flag and fix enum hacks

* note for get_ufloat_1 inline

* PR suggestions and UB note

Co-authored-by: Pheenoh <pheenoh@gmail.com>

include/os/OS.h

@@ -93,8 +93,6 @@ typedef s32 OSHeapHandle;
 typedef enum OSSoundMode {
     SOUND_MODE_MONO = 0,
     SOUND_MODE_STEREO = 1,
-
-    __SOUND_MODE_FORCE_ENUM_U32 = 0xffffffff,
 } OSSoundMode;
 
 typedef u16 OSThreadState;
@@ -151,7 +149,7 @@ BOOL OSJamMessage(OSMessageQueue* queue, OSMessage message, int flags);
 s32 OSGetConsoleType(void);
 s32 OSGetResetCode(void);
 
-OSSoundMode OSGetSoundMode(void);
+u32 OSGetSoundMode(void);
 void OSSetSoundMode(OSSoundMode mode);
 
 void OSReportInit(void);