/*    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.*/#ifndef __FPA11_H__#define __FPA11_H__#include <stdlib.h>#include <stdio.h>#include <errno.h>#include <cpu.h>#define GET_FPA11() (qemufpa)/* * The processes registers are always at the very top of the 8K * stack+task struct.  Use the same method as 'current' uses to * reach them. */extern CPUARMState *user_registers;#define GET_USERREG() (user_registers)/* Need task_struct *///#include <linux/sched.h>/* includes */#include "fpsr.h"		/* FP control and status register definitions */#include "softfloat.h"#define		typeNone		0x00#define		typeSingle		0x01#define		typeDouble		0x02#define		typeExtended		0x03/* * This must be no more and no less than 12 bytes. */typedef union tagFPREG {   floatx80 fExtended;   float64  fDouble;   float32  fSingle;} FPREG;/* * FPA11 device model. * * This structure is exported to user space.  Do not re-order. * Only add new stuff to the end, and do not change the size of * any element.  Elements of this structure are used by user * space, and must match struct user_fp in include/asm-arm/user.h. * We include the byte offsets below for documentation purposes. * * The size of this structure and FPREG are checked by fpmodule.c * on initialisation.  If the rules have been broken, NWFPE will * not initialise. */typedef struct tagFPA11 {/*   0 */  FPREG fpreg[8];		/* 8 floating point registers *//*  96 */  FPSR fpsr;			/* floating point status register *//* 100 */  FPCR fpcr;			/* floating point control register *//* 104 */  unsigned char fType[8];	/* type of floating point value held in					   floating point registers.  One of none					   single, double or extended. *//* 112 */  int initflag;		/* this is special.  The kernel guarantees					   to set it to 0 when a thread is launched,					   so we can use it to detect whether this					   instance of the emulator needs to be					   initialised. */    float_status fp_status;      /* QEMU float emulator status */} FPA11;extern FPA11* qemufpa;extern void resetFPA11(void);extern void SetRoundingMode(const unsigned int);extern void SetRoundingPrecision(const unsigned int);static inline unsigned int readRegister(unsigned int reg){    return (user_registers->regs[(reg)]);}static inline void writeRegister(unsigned int x, unsigned int y){#if 0	printf("writing %d to r%d\n",y,x);#endif        user_registers->regs[(x)]=(y);}static inline void writeConditionCodes(unsigned int x){        cpsr_write(user_registers,x,CPSR_NZCV);}#define REG_PC 15unsigned int EmulateAll(unsigned int opcode, FPA11* qfpa, CPUARMState* qregs);/* included only for get_user/put_user macros */#include "qemu.h"#endif