/*
      NetWinder Floating Point Emulator
      (c) Rebel.COM, 1998,1999
  
      Direct questions, comments to Scott Bambrough <scottb@netwinder.org>
  
      This program is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published by
      the Free Software Foundation; either version 2 of the License, or
      (at your option) any later version.
  
      This program is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      GNU General Public License for more details.
  
      You should have received a copy of the GNU General Public License
      along with this program; if not, write to the Free Software
      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
  
  #include "fpa11.h"
  
  /* Read and write floating point status register */
  static inline unsigned int readFPSR(void)
  {
  	FPA11 *fpa11 = GET_FPA11();
  	return (fpa11->fpsr);
  }
  
  static inline void writeFPSR(FPSR reg)
  {
  	FPA11 *fpa11 = GET_FPA11();
  	/* the sysid byte in the status register is readonly */
  	fpa11->fpsr = (fpa11->fpsr & MASK_SYSID) | (reg & ~MASK_SYSID);
  }
  
  /* Read and write floating point control register */
  static inline FPCR readFPCR(void)
  {
  	FPA11 *fpa11 = GET_FPA11();
  	/* clear SB, AB and DA bits before returning FPCR */
  	return (fpa11->fpcr & ~MASK_RFC);
  }
  
  static inline void writeFPCR(FPCR reg)
  {
  	FPA11 *fpa11 = GET_FPA11();
  	fpa11->fpcr &= ~MASK_WFC;		/* clear SB, AB and DA bits */
  	fpa11->fpcr |= (reg & MASK_WFC);	/* write SB, AB and DA bits */
  }