is that a staticly defined function by function address?

Crazy_c_function_stars.c

#define BOOTLOADER_START_ADDR 0x1fffc400 //This may be c800

static uint32_t *bootloader_msp = (void *)BOOTLOADER_START_ADDR;
static void *(**bootloader)() = (void *)BOOTLOADER_START_ADDR + 4;

    __set__MSP(*bootloader_msp); //set the stack pointer to the addr
    (*bootloader)(); //Execute program at location bootloader

//Better demo, with an actual function where it should be

define BOOTLOADER_START_ADDR 0x1fffc400 //This may be c800

static uint32_t bootloader_msp = (void *)BOOTLOADER_START_ADDR;
static void *(*bootloader)() = (void *)BOOTLOADER_START_ADDR + 4;

void jump_to_bootloader_addr(){
__set__MSP(_bootloader_msp); //set the stack pointer to the addr
(_bootloader)(); //Execute program at location bootloader
}