Fix most compiler warnings in the boot and code segments (#674)

* Less warnings in boot & code segments

* few more warnings gone

* Ran formatter

* z_view warning gone

* -> 1

* f31 -> 31

* Remove function casts

* Few more small improvements

* Separate declaration and assignment in func_80091738 and Item_Give

Co-authored-by: Thar0 <maximilianc64@gmail.com>

src/libultra_code_O2/sptask.c

@@ -19,6 +19,7 @@ OSTask* _VirtualToPhysicalTask(OSTask* intp) {
     _osVirtualToPhysical(tp->t.output_buff_size);
     _osVirtualToPhysical(tp->t.data_ptr);
     _osVirtualToPhysical(tp->t.yield_data_ptr);
+
     return tp;
 }
 
@@ -29,34 +30,31 @@ void osSpTaskLoad(OSTask* intp) {
         tp->t.ucode_data = tp->t.yield_data_ptr;
         tp->t.ucode_data_size = tp->t.yield_data_size;
         intp->t.flags &= ~OS_TASK_YIELDED;
+
         if (tp->t.flags & OS_TASK_LOADABLE) {
             tp->t.ucode = HW_REG((u32)intp->t.yield_data_ptr + OS_YIELD_DATA_SIZE - 4, u32);
         }
     }
     osWritebackDCache(tp, sizeof(OSTask));
     __osSpSetStatus(SP_CLR_SIG0 | SP_CLR_SIG1 | SP_CLR_SIG2 | SP_SET_INTR_BREAK);
+
     while (__osSpSetPc((void*)SP_IMEM_START) == -1) {
         ;
     }
-
     while (__osSpRawStartDma(1, (void*)(SP_IMEM_START - sizeof(*tp)), tp, sizeof(OSTask)) == -1) {
         ;
     }
-
     while (__osSpDeviceBusy()) {
         ;
     }
-
     while (__osSpRawStartDma(1, (void*)SP_IMEM_START, tp->t.ucode_boot, tp->t.ucode_boot_size) == -1) {
         ;
     }
 }
 
 void osSpTaskStartGo(OSTask* tp) {
-
     while (__osSpDeviceBusy()) {
         ;
     }
-
     __osSpSetStatus(SP_SET_INTR_BREAK | SP_CLR_SSTEP | SP_CLR_BROKE | SP_CLR_HALT);
 }