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#include "arch.h"
#include "arch/stm32l4xxx/peripherals/clock.h"
#include "arch/stm32l4xxx/peripherals/system.h"
#include "kern/log.h"
#include "kern/panic.h"
#include "kern/init.h"
#include "kern/mem.h"

void on_systick() /* Overrides weak-symbol on_systick. */
{
  klogf("Systick\n");
}

#ifdef ARCH_STM32L4

/* Main function. This gets executed from the interrupt vector defined above. */
int main()
{
  klogf("Hello, World! Clock Mhz: %d\n", (uint32_t)get_clock_mhz());
  klogf("Heap Start: %p\n", &HEAP_START);
  klogf("Heap End  : %p\n", &HEAP_STOP);

  /* Set the countdown to start from 10,000,0000. */
  SCB.strv_r = 10000000 / 20;

  /* Enable interrupts. */
  regset(SCB.stcs_r, scb_tickint, 1);

  /* Start the systick. */
  regset(SCB.stcs_r, scb_enable, 1);

  void* hunk = kalloc(25);
  kfree(hunk);
  kfree(hunk); /* Invalid free. */
}

#endif