#include <stdint.h>

intptr_t __syscall0(uintptr_t id)
{
    intptr_t ret = 0;
    asm volatile("mov %1, %%rax; syscall; mov %%rax, %0"
            : "=m" (ret)
            : "m" (id));
    return ret;
}

intptr_t __syscall1(uintptr_t id, uintptr_t p0)
{
    intptr_t ret = 0;
    asm volatile(
            "mov %1, %%rax;"
            "mov %2, %%rdi;"
            "syscall;"
            "mov %%rax, %0"
            : "=m" (ret)
            : "m" (id), "m" (p0));
    return ret;
}

intptr_t __syscall2(uintptr_t id, uintptr_t p0, uintptr_t p1)
{
    intptr_t ret = 0;
    asm volatile(
            "mov %1, %%rax;"
            "mov %2, %%rdi;"
            "mov %3, %%rsi;"
            "syscall;"
            "mov %%rax, %0"
            : "=m" (ret)
            : "m" (id), "m" (p0), "m" (p1));
    return ret;
}

intptr_t __syscall3(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2)
{
    intptr_t ret = 0;
    asm volatile(
            "movq %1, %%rax;"
            "mov %2, %%rdi;"
            "mov %3, %%rsi;"
            "mov %4, %%rdx;"
            "syscall;"
            "mov %%rax, %0"
            : "=m" (ret)
            : "m" (id), "m" (p0), "m" (p1), "m" (p2));
    return ret;
}

intptr_t __syscall4(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2,
        uintptr_t p3)
{
    intptr_t ret = 0;
    asm volatile(
            "mov %1, %%rax;"
            "mov %2, %%rdi;"
            "mov %3, %%rsi;"
            "mov %4, %%rdx;"
            "mov %5, %%r10;"
            "syscall;"
            "mov %%rax, %0"
            : "=m" (ret)
            : "m" (id), "m" (p0), "m" (p1), "m" (p2), "m" (p3));
    return ret;
}

intptr_t __syscall5(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2,
        uintptr_t p3, uintptr_t p4)
{
    intptr_t ret = 0;
    asm volatile(
            "mov %1, %%rax;"
            "mov %2, %%rdi;"
            "mov %3, %%rsi;"
            "mov %4, %%rdx;"
            "mov %5, %%r10;"
            "mov %6, %%r8;"
            "syscall;"
            "mov %%rax, %0"
            : "=m" (ret)
            : "m" (id), "m" (p0), "m" (p1), "m" (p2), "m" (p3), "m" (p4));
    return ret;
}

intptr_t __syscall6(uintptr_t id, uintptr_t p0, uintptr_t p1, uintptr_t p2,
        uintptr_t p3, uintptr_t p4, uintptr_t p5)
{
    intptr_t ret = 0;
    asm volatile(
            "mov %1, %%rax;"
            "mov %2, %%rdi;"
            "mov %3, %%rsi;"
            "mov %4, %%rdx;"
            "mov %5, %%r10;"
            "mov %6, %%r8;"
            "mov %7, %%r9;"
            "syscall;"
            "mov %%rax, %0"
            : "=m" (ret)
            : "m" (id), "m" (p0), "m" (p1), "m" (p2), "m" (p3), "m" (p4),
                "m" (p5));
    return ret;
}