arch/unicore32/include/asm/fpu-ucf64.h

   1 /*
   2  * linux/arch/unicore32/include/asm/fpu-ucf64.h
   3  *
   4  * Code specific to PKUnity SoC and UniCore ISA
   5  *
   6  *      Maintained by GUAN Xue-tao <gxt@mprc.pku.edu.cn>
   7  *      Copyright (C) 2001-2010 Guan Xuetao
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13 #define FPSCR                   s31
  14
  15 /* FPSCR bits */
  16 #define FPSCR_DEFAULT_NAN       (1<<25)
  17
  18 #define FPSCR_CMPINSTR_BIT      (1<<31)
  19
  20 #define FPSCR_CON               (1<<29)
  21 #define FPSCR_TRAP              (1<<27)
  22
  23 /* RND mode */
  24 #define FPSCR_ROUND_NEAREST     (0<<0)
  25 #define FPSCR_ROUND_PLUSINF     (2<<0)
  26 #define FPSCR_ROUND_MINUSINF    (3<<0)
  27 #define FPSCR_ROUND_TOZERO      (1<<0)
  28 #define FPSCR_RMODE_BIT         (0)
  29 #define FPSCR_RMODE_MASK        (7 << FPSCR_RMODE_BIT)
  30
  31 /* trap enable */
  32 #define FPSCR_IOE               (1<<16)
  33 #define FPSCR_OFE               (1<<14)
  34 #define FPSCR_UFE               (1<<13)
  35 #define FPSCR_IXE               (1<<12)
  36 #define FPSCR_HIE               (1<<11)
  37 #define FPSCR_NDE               (1<<10) /* non denomal */
  38
  39 /* flags */
  40 #define FPSCR_IDC               (1<<24)
  41 #define FPSCR_HIC               (1<<23)
  42 #define FPSCR_IXC               (1<<22)
  43 #define FPSCR_OFC               (1<<21)
  44 #define FPSCR_UFC               (1<<20)
  45 #define FPSCR_IOC               (1<<19)
  46
  47 /* stick bits */
  48 #define FPSCR_IOS               (1<<9)
  49 #define FPSCR_OFS               (1<<7)
  50 #define FPSCR_UFS               (1<<6)
  51 #define FPSCR_IXS               (1<<5)
  52 #define FPSCR_HIS               (1<<4)
  53 #define FPSCR_NDS               (1<<3)  /*non denomal */