Exemple #1
0
int arm_cpu_caps(void) {
  /* This function should actually be a no-op. There is no way to adjust any of
   * these because the RTCD tables do not exist: the functions are called
   * statically */
  int flags;
  int mask;
  if (!arm_cpu_env_flags(&flags)) {
    return flags;
  }
  mask = arm_cpu_env_mask();
#if HAVE_NEON || HAVE_NEON_ASM
  flags |= HAS_NEON;
#endif /* HAVE_NEON  || HAVE_NEON_ASM */
  return flags & mask;
}
int arm_cpu_caps(void) {
  int flags;
  int mask;
  if (!arm_cpu_env_flags(&flags)) {
    return flags;
  }
  mask = arm_cpu_env_mask();
  /* MSVC has no inline __asm support for ARM, but it does let you __emit
   *  instructions via their assembled hex code.
   * All of these instructions should be essentially nops.
   */
#if HAVE_EDSP
  if (mask & HAS_EDSP) {
    __try {
      /*PLD [r13]*/
      __emit(0xF5DDF000);
      flags |= HAS_EDSP;
    } __except (GetExceptionCode() == EXCEPTION_ILLEGAL_INSTRUCTION) {
      /*Ignore exception.*/
    }
  }