R077A6r1an

// First, a minimal stdint.h

typedef __UINT32_TYPE__ uint32_t;
typedef __UINT64_TYPE__ uint64_t;

// NOTE: as kernel, we dont have any stdlib, so if you want to use one, implement one your self, and link it static!

// the multiboot info structure ( all we get by the multiboot bootloader )

struct multiboot_info {

carlosascari

; 
; Protected Mode BIOS Call Functionailty v2.0 - by Napalm
; -------------------------------------------------------
; 
; This is code shows how its POSSIBLE to execute BIOS interrupts
; by switch out to real-mode and then back into protected mode.
; 
; If you wish to use all or part of this code you must agree
; to the license at the following URL.
; 

aprell

// RUN: cc -Wall -Wextra %s && ./a.out

#include <assert.h>

#if defined(__GNUC__) || defined(__clang__)
  // Supports 0-10 arguments
  #define VA_NARGS_IMPL(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N
  // ## deletes preceding comma if _VA_ARGS__ is empty (GCC, Clang)
  #define VA_NARGS(...) VA_NARGS_IMPL(_, ## __VA_ARGS__, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
#else