fpu-ucf64.h

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/*
 * linux/arch/unicore32/include/asm/fpu-ucf64.h
 *
 * Code specific to PKUnity SoC and UniCore ISA
 *
 *  Maintained by GUAN Xue-tao <[email protected]>
 *  Copyright (C) 2001-2010 Guan Xuetao
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#define FPSCR           s31

/* FPSCR bits */
#define FPSCR_DEFAULT_NAN   (1<<25)

#define FPSCR_CMPINSTR_BIT  (1<<31)

#define FPSCR_CON       (1<<29)
#define FPSCR_TRAP      (1<<27)

/* RND mode */
#define FPSCR_ROUND_NEAREST (0<<0)
#define FPSCR_ROUND_PLUSINF (2<<0)
#define FPSCR_ROUND_MINUSINF    (3<<0)
#define FPSCR_ROUND_TOZERO  (1<<0)
#define FPSCR_RMODE_BIT     (0)
#define FPSCR_RMODE_MASK    (7 << FPSCR_RMODE_BIT)

/* trap enable */
#define FPSCR_IOE       (1<<16)
#define FPSCR_OFE       (1<<14)
#define FPSCR_UFE       (1<<13)
#define FPSCR_IXE       (1<<12)
#define FPSCR_HIE       (1<<11)
#define FPSCR_NDE       (1<<10) /* non denomal */

/* flags */
#define FPSCR_IDC       (1<<24)
#define FPSCR_HIC       (1<<23)
#define FPSCR_IXC       (1<<22)
#define FPSCR_OFC       (1<<21)
#define FPSCR_UFC       (1<<20)
#define FPSCR_IOC       (1<<19)

/* stick bits */
#define FPSCR_IOS       (1<<9)
#define FPSCR_OFS       (1<<7)
#define FPSCR_UFS       (1<<6)
#define FPSCR_IXS       (1<<5)
#define FPSCR_HIS       (1<<4)
#define FPSCR_NDS       (1<<3)  /*non denomal */