define block _BOOT_   with alignment = 8, size = 0x1000    { };
place at address mem: 0x70000 { readonly section _BOOT_ };

define block _MP_     with alignment = 8, size = 0x60000    { };
place at address mem: 0x01000 { readonly section _MP_ };

place in ROM_region   { readonly, block _MP_, block _BOOT_ };

void Blink(void);
#pragma segment = "_MP_"
int main()
{ IO0DIR=(1<<22);
  while(1) Blink();
 
}
void Blink(void) @ "_BOOT_"
{
  if (IO0PIN&(1<<22))  IO0CLR|=(1<<22); else IO0SET|=(1<<22);
}