#include <linux/types.h>
  #include <linux/errno.h>
  #include <asm/uaccess.h>
  
  int
  fneg(u32 *frD, u32 *frB)
  {
  	frD[0] = frB[0] ^ 0x80000000;
  	frD[1] = frB[1];
  
  #ifdef DEBUG
  	printk("%s: D %p, B %p: ", __func__, frD, frB);
  	dump_double(frD);
  	printk("
  ");
  #endif
  
  	return 0;
  }