/* Target-dependent code for the i387. Copyright (C) 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009 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; #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_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)) /* 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 void i387_register_to_value (struct frame_info *frame, int regnum, struct type *type, gdb_byte *to); /* 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); /* 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); /* 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); /* 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 */