[deliverable/binutils-gdb.git] / gdb / i387-tdep.h

/* Target-dependent code for the i387.

   Copyright (C) 2000-2004, 2007-2012 Free Software Foundation, Inc.

   This file is part of GDB.

   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 3 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, see <http://www.gnu.org/licenses/>.  */

#ifndef I387_TDEP_H
#define I387_TDEP_H

struct gdbarch;
struct frame_info;
struct regcache;
struct type;
struct ui_file;

/* Number of i387 floating point registers.  */
#define I387_NUM_REGS	16

#define I387_ST0_REGNUM(tdep) ((tdep)->st0_regnum)
#define I387_NUM_XMM_REGS(tdep) ((tdep)->num_xmm_regs)
#define I387_MM0_REGNUM(tdep) ((tdep)->mm0_regnum)
#define I387_NUM_YMM_REGS(tdep) ((tdep)->num_ymm_regs)
#define I387_YMM0H_REGNUM(tdep) ((tdep)->ymm0h_regnum)

#define I387_FCTRL_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 8)
#define I387_FSTAT_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 1)
#define I387_FTAG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 2)
#define I387_FISEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 3)
#define I387_FIOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 4)
#define I387_FOSEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 5)
#define I387_FOOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 6)
#define I387_FOP_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 7)
#define I387_XMM0_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 16)
#define I387_MXCSR_REGNUM(tdep) \
  (I387_XMM0_REGNUM (tdep) + I387_NUM_XMM_REGS (tdep))
#define I387_YMMENDH_REGNUM(tdep) \
  (I387_YMM0H_REGNUM (tdep) + I387_NUM_YMM_REGS (tdep))

/* Print out the i387 floating point state.  */

extern void i387_print_float_info (struct gdbarch *gdbarch,
				   struct ui_file *file,
				   struct frame_info *frame,
				   const char *args);

/* Return nonzero if a value of type TYPE stored in register REGNUM
   needs any special handling.  */

extern int i387_convert_register_p (struct gdbarch *gdbarch, int regnum,
				    struct type *type);

/* Read a value of type TYPE from register REGNUM in frame FRAME, and
   return its contents in TO.  */

extern int i387_register_to_value (struct frame_info *frame, int regnum,
				   struct type *type, gdb_byte *to,
				   int *optimizedp, int *unavailablep);

/* Write the contents FROM of a value of type TYPE into register
   REGNUM in frame FRAME.  */

extern void i387_value_to_register (struct frame_info *frame, int regnum,
				    struct type *type, const gdb_byte *from);
\f

/* Size of the memory area use by the 'fsave' and 'fxsave'
   instructions.  */
#define I387_SIZEOF_FSAVE	108
#define I387_SIZEOF_FXSAVE	512

/* Fill register REGNUM in REGCACHE with the appropriate value from
   *FSAVE.  This function masks off any of the reserved bits in
   *FSAVE.  */

extern void i387_supply_fsave (struct regcache *regcache, int regnum,
			       const void *fsave);

/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
   with the value from REGCACHE.  If REGNUM is -1, do this for all
   registers.  This function doesn't touch any of the reserved bits in
   *FSAVE.  */

extern void i387_collect_fsave (const struct regcache *regcache, int regnum,
				void *fsave);

/* Fill register REGNUM in REGCACHE with the appropriate
   floating-point or SSE register value from *FXSAVE.  This function
   masks off any of the reserved bits in *FXSAVE.  */

extern void i387_supply_fxsave (struct regcache *regcache, int regnum,
				const void *fxsave);

/* Similar to i387_supply_fxsave, but use XSAVE extended state.  */

extern void i387_supply_xsave (struct regcache *regcache, int regnum,
			       const void *xsave);

/* Fill register REGNUM (if it is a floating-point or SSE register) in
   *FXSAVE with the value from REGCACHE.  If REGNUM is -1, do this for
   all registers.  This function doesn't touch any of the reserved
   bits in *FXSAVE.  */

extern void i387_collect_fxsave (const struct regcache *regcache, int regnum,
				 void *fxsave);

/* Similar to i387_collect_fxsave, but use XSAVE extended state.  */

extern void i387_collect_xsave (const struct regcache *regcache,
				int regnum, void *xsave, int gcore);

/* Prepare the FPU stack in REGCACHE for a function return.  */

extern void i387_return_value (struct gdbarch *gdbarch,
			       struct regcache *regcache);

#endif /* i387-tdep.h */
Commit	Line	Data
	1	/* Target-dependent code for the i387.
	2
	3	Copyright (C) 2000-2004, 2007-2012 Free Software Foundation, Inc.
	4
	5	This file is part of GDB.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 3 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program. If not, see <http://www.gnu.org/licenses/>. */
	19
	20	#ifndef I387_TDEP_H
	21	#define I387_TDEP_H
	22
	23	struct gdbarch;
	24	struct frame_info;
	25	struct regcache;
	26	struct type;
	27	struct ui_file;
	28
	29	/* Number of i387 floating point registers. */
	30	#define I387_NUM_REGS 16
	31
	32	#define I387_ST0_REGNUM(tdep) ((tdep)->st0_regnum)
	33	#define I387_NUM_XMM_REGS(tdep) ((tdep)->num_xmm_regs)
	34	#define I387_MM0_REGNUM(tdep) ((tdep)->mm0_regnum)
	35	#define I387_NUM_YMM_REGS(tdep) ((tdep)->num_ymm_regs)
	36	#define I387_YMM0H_REGNUM(tdep) ((tdep)->ymm0h_regnum)
	37
	38	#define I387_FCTRL_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 8)
	39	#define I387_FSTAT_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 1)
	40	#define I387_FTAG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 2)
	41	#define I387_FISEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 3)
	42	#define I387_FIOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 4)
	43	#define I387_FOSEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 5)
	44	#define I387_FOOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 6)
	45	#define I387_FOP_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 7)
	46	#define I387_XMM0_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 16)
	47	#define I387_MXCSR_REGNUM(tdep) \
	48	(I387_XMM0_REGNUM (tdep) + I387_NUM_XMM_REGS (tdep))
	49	#define I387_YMMENDH_REGNUM(tdep) \
	50	(I387_YMM0H_REGNUM (tdep) + I387_NUM_YMM_REGS (tdep))
	51
	52	/* Print out the i387 floating point state. */
	53
	54	extern void i387_print_float_info (struct gdbarch *gdbarch,
	55	struct ui_file *file,
	56	struct frame_info *frame,
	57	const char *args);
	58
	59	/* Return nonzero if a value of type TYPE stored in register REGNUM
	60	needs any special handling. */
	61
	62	extern int i387_convert_register_p (struct gdbarch *gdbarch, int regnum,
	63	struct type *type);
	64
	65	/* Read a value of type TYPE from register REGNUM in frame FRAME, and
	66	return its contents in TO. */
	67
	68	extern int i387_register_to_value (struct frame_info *frame, int regnum,
	69	struct type type, gdb_byte to,
	70	int optimizedp, int unavailablep);
	71
	72	/* Write the contents FROM of a value of type TYPE into register
	73	REGNUM in frame FRAME. */
	74
	75	extern void i387_value_to_register (struct frame_info *frame, int regnum,
	76	struct type type, const gdb_byte from);
	77	\f
	78
	79	/* Size of the memory area use by the 'fsave' and 'fxsave'
	80	instructions. */
	81	#define I387_SIZEOF_FSAVE 108
	82	#define I387_SIZEOF_FXSAVE 512
	83
	84	/* Fill register REGNUM in REGCACHE with the appropriate value from
	85	*FSAVE. This function masks off any of the reserved bits in
	86	FSAVE. /
	87
	88	extern void i387_supply_fsave (struct regcache *regcache, int regnum,
	89	const void *fsave);
	90
	91	/* Fill register REGNUM (if it is a floating-point register) in *FSAVE
	92	with the value from REGCACHE. If REGNUM is -1, do this for all
	93	registers. This function doesn't touch any of the reserved bits in
	94	FSAVE. /
	95
	96	extern void i387_collect_fsave (const struct regcache *regcache, int regnum,
	97	void *fsave);
	98
	99	/* Fill register REGNUM in REGCACHE with the appropriate
	100	floating-point or SSE register value from *FXSAVE. This function
	101	masks off any of the reserved bits in FXSAVE. /
	102
	103	extern void i387_supply_fxsave (struct regcache *regcache, int regnum,
	104	const void *fxsave);
	105
	106	/* Similar to i387_supply_fxsave, but use XSAVE extended state. */
	107
	108	extern void i387_supply_xsave (struct regcache *regcache, int regnum,
	109	const void *xsave);
	110
	111	/* Fill register REGNUM (if it is a floating-point or SSE register) in
	112	*FXSAVE with the value from REGCACHE. If REGNUM is -1, do this for
	113	all registers. This function doesn't touch any of the reserved
	114	bits in FXSAVE. /
	115
	116	extern void i387_collect_fxsave (const struct regcache *regcache, int regnum,
	117	void *fxsave);
	118
	119	/* Similar to i387_collect_fxsave, but use XSAVE extended state. */
	120
	121	extern void i387_collect_xsave (const struct regcache *regcache,
	122	int regnum, void *xsave, int gcore);
	123
	124	/* Prepare the FPU stack in REGCACHE for a function return. */
	125
	126	extern void i387_return_value (struct gdbarch *gdbarch,
	127	struct regcache *regcache);
	128
	129	#endif /* i387-tdep.h */