breaking-bad-ds/source/debug.cpp

#include "debug.h"

// Routine taken from https://devkitpro.org/viewtopic.php?t=3057

extern u8 *fake_heap_end;   // current heap start
extern u8 *fake_heap_start; // current heap end

u8* getHeapStart() { 
   return fake_heap_start; 
} 

u8* getHeapEnd() { 
   return (u8*)sbrk(0); 
} 

u8* getHeapLimit() { 
   return fake_heap_end; 
} 

int getMemUsed() { // returns the amount of used memory in bytes 
   struct mallinfo mi = mallinfo(); 
   return mi.uordblks; 
} 

int getMemFree() { // returns the amount of free memory in bytes 
   struct mallinfo mi = mallinfo(); 
   return mi.fordblks + (getHeapLimit() - getHeapEnd()); 
}