#ifndef CRASHPOWEROS_SYSCALL_H
#define CRASHPOWEROS_SYSCALL_H

#include <stddef.h>

#define SYSCALL_NUM 10

#define DEFN_SYSCALL0(fn, num) \
int syscall_##fn() \
{ \
  int a; \
  asm volatile("int $0x80" : "=a" (a) : "0" (num)); \
  return a; \
}

#define DEFN_SYSCALL1(fn, num, P1) \
int syscall_##fn(P1 p1) \
{ \
  int a; \
  asm volatile("int $0x80" : "=a" (a) : "0" (num), "b" ((int)p1)); \
  return a; \
}

#define DEFN_SYSCALL2(fn, num, P1, P2) \
int syscall_##fn(P1 p1, P2 p2) \
{ \
  int a; \
  asm volatile("int $0x80" : "=a" (a) : "0" (num), "b" ((int)p1), "c" ((int)p2)); \
  return a; \
}

#define DEFN_SYSCALL3(fn, num, P1, P2, P3) \
int syscall_##fn(P1 p1, P2 p2, P3 p3) \
{ \
  int a; \
  asm volatile("int $0x80" : "=a" (a) : "0" (num), "b" ((int)p1), "c" ((int)p2), "d"((int)p3)); \
  return a; \
}

#define DEFN_SYSCALL4(fn, num, P1, P2, P3, P4) \
int syscall_##fn(P1 p1, P2 p2, P3 p3, P4 p4) \
{ \
  int a; \
  asm volatile("int $0x80" : "=a" (a) : "0" (num), "b" ((int)p1), "c" ((int)p2), "d" ((int)p3), "S" ((int)p4)); \
  return a; \
}

#define DEFN_SYSCALL5(fn, num) \
int syscall_##fn(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5) \
{ \
  int a; \
  asm volatile("int $0x80" : "=a" (a) : "0" (num), "b" ((int)p1), "c" ((int)p2), "d" ((int)p3), "S" ((int)p4), "D" ((int)p5)); \
  return a; \
}

void syscall_install();

#endif