src/Dolphin/os/__ppc_eabi_init.cpp


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#include "dolphin/__ppc_eabi_init.h"
#include "dolphin/PPCArch.h"

#ifdef __cplusplus
extern "C" {
#endif
void __OSPSInit();
void __OSCacheInit();

asm void __init_hardware(void) {
  // clang-format off
  nofralloc
  mfmsr r0
  ori r0, r0, 0x2000
  mtmsr r0

  mflr r31
  bl __OSPSInit
  bl __OSCacheInit
  mtlr r31
  blr
  // clang-format on
}

asm void __flush_cache(register void* address, register unsigned int size) {
  // clang-format off
  nofralloc
  lis r5,  ~0
  ori r5, r5, ~14
  and r5, r5, r3
  subf r3, r5, r3
  add r4, r4, r3

loop:    
  dcbst r0, r5
  sync
  icbi r0, r5
  addic r5, r5, 8
  subic. r4, r4, 8    
  bge loop
  isync
  blr
  // clang-format on
}

void __init_user() { __init_cpp(); }

typedef void (*voidfunctionptr)(void); // pointer to function returning void
__declspec(section ".init") extern voidfunctionptr _ctors[];
__declspec(section ".init") extern voidfunctionptr _dtors[];

void __init_cpp(void) {
  voidfunctionptr* constructor;

  /*
   *	call static initializers
   */
  for (constructor = _ctors; *constructor; constructor++) {
    (*constructor)();
  }
}

void _ExitProcess(void) { PPCHalt(); }

#ifdef __cplusplus
}
#endif