builtin.fl

void myprint(*i8 str, int length) {
    syscall3(1, 1, (int)str, length);
}

void exit(int code) {
    syscall1(60, code);
}


void print(i8 val) {

}

void print(int val) {

}

*i8 itoa(int val) {

}

*i8 malloc(int bytes) {
    static *i8 max = 0;
    static *i8 used = 0;
    if (max == 0) {
        max = (*i8) brk(0);
        used = max;
    }
    if (used + bytes <= max) {
        max = (*i8) brk((int) max + bytes);
    }
    used = used + bytes;
    return used - bytes;
}

int brk(int addr) {
    return syscall1(12, addr);
}

int syscall(int call) {
    int result;
    asm("syscall; mov $1, %rax" : "=r"(result) : "{rax}"(call) : "{rcx}", "{r11}");
    return result;
}

int syscall1(int call, int arg1) {
    int result;
    asm("syscall; mov $1, %rax" : "=r"(result) : "{rax}"(call), "{rdi}"(arg1) : "{rcx}", "{r11}");
    return result;
}

int syscall2(int call, int arg1, int arg2) {
    int result;
    asm("syscall; mov $1, %rax" : "=r"(result) : "{rax}"(call), "{rdi}"(arg1), "{rsi}"(arg2) : "{rcx}", "{r11}");
    return result;
}

int syscall3(int call, int arg1, int arg2, int arg3) {
    int result;
    asm("syscall; mov $1, %rax" : "=r"(result) : "{rax}"(call), "{rdi}"(arg1), "{rsi}"(arg2), "{rdx}"(arg3) : "{rcx}", "{r11}");
    return result;
}

int syscall4(int call, int arg1, int arg2, int arg3, int arg4) {
    int result;
    asm("syscall; mov $1, %rax" : "=r"(result) : "{rax}"(call), "{rdi}"(arg1), "{rsi}"(arg2), "{rdx}"(arg3), "{r10}"(arg4) : "{rcx}", "{r11}");
    return result;
}

int syscall5(int call, int arg1, int arg2, int arg3, int arg4, int arg5) {
    int result;
    asm("syscall; mov $1, %rax" : "=r"(result) : "{rax}"(call), "{rdi}"(arg1), "{rsi}"(arg2), "{rdx}"(arg3), "{r10}"(arg4), "{r8}"(arg5) : "{rcx}", "{r11}");
    return result;
}

int syscall6(int call, int arg1, int arg2, int arg3, int arg4, int arg5, int arg6) {
    int result;
    asm("syscall; mov $1, %rax" : "=r"(result) : "{rax}"(call), "{rdi}"(arg1), "{rsi}"(arg2), "{rdx}"(arg3), "{r10}"(arg4), "{r8}"(arg5), "{r9}"(arg6) : "{rcx}", "{r11}");
    return result;
}