#include <stdint.h>
#include <string.h>

int main();

asm(".section .init     \n"
    ".global _start     \n"
    "_start:            \n\t"
    "mov %cs, %ax       \n\t"
    "mov %ax, %ds       \n\t"
    "mov %ax, %es       \n\t"
    "cli                \n\t"
    "mov %ax, %ss       \n\t"
    "mov $0x1000, %ax   \n\t"
    "mov %ax, %sp       \n\t"
    "sti                \n\t"
    "jmp main");

void* memset(void* ptr, int val, size_t len) {
    uint8_t* p = ptr;
    while (len--) {
        *p++ = val;
    }
    return ptr;
}