Commit | Line | Data |
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e750d25e | 1 | /* Target-dependent code for the i387. |
2de139ba | 2 | |
ecd75fc8 | 3 | Copyright (C) 2000-2014 Free Software Foundation, Inc. |
b2450fc5 MK |
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 | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
b2450fc5 MK |
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 | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
b2450fc5 | 19 | |
e750d25e JT |
20 | #ifndef I387_TDEP_H |
21 | #define I387_TDEP_H | |
b2450fc5 | 22 | |
da3331ec | 23 | struct gdbarch; |
da3331ec | 24 | struct frame_info; |
41d041d6 | 25 | struct regcache; |
d532c08f | 26 | struct type; |
41d041d6 | 27 | struct ui_file; |
da3331ec | 28 | |
90884b2b L |
29 | /* Number of i387 floating point registers. */ |
30 | #define I387_NUM_REGS 16 | |
31 | ||
20a6ec49 MD |
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) | |
31aeac78 L |
35 | #define I387_NUM_YMM_REGS(tdep) ((tdep)->num_ymm_regs) |
36 | #define I387_YMM0H_REGNUM(tdep) ((tdep)->ymm0h_regnum) | |
1dbcd68c WT |
37 | #define I387_BND0R_REGNUM(tdep) ((tdep)->bnd0r_regnum) |
38 | #define I387_BNDCFGU_REGNUM(tdep) ((tdep)->bndcfgu_regnum) | |
39 | ||
40 | /* Set of constants used for 32 and 64-bit. */ | |
41 | #define I387_NUM_MPX_REGS 6 | |
42 | #define I387_NUM_BND_REGS 4 | |
43 | #define I387_NUM_MPX_CTRL_REGS 2 | |
20a6ec49 MD |
44 | |
45 | #define I387_FCTRL_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 8) | |
46 | #define I387_FSTAT_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 1) | |
47 | #define I387_FTAG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 2) | |
48 | #define I387_FISEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 3) | |
49 | #define I387_FIOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 4) | |
50 | #define I387_FOSEG_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 5) | |
51 | #define I387_FOOFF_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 6) | |
52 | #define I387_FOP_REGNUM(tdep) (I387_FCTRL_REGNUM (tdep) + 7) | |
53 | #define I387_XMM0_REGNUM(tdep) (I387_ST0_REGNUM (tdep) + 16) | |
54 | #define I387_MXCSR_REGNUM(tdep) \ | |
55 | (I387_XMM0_REGNUM (tdep) + I387_NUM_XMM_REGS (tdep)) | |
31aeac78 L |
56 | #define I387_YMMENDH_REGNUM(tdep) \ |
57 | (I387_YMM0H_REGNUM (tdep) + I387_NUM_YMM_REGS (tdep)) | |
1dbcd68c WT |
58 | #define I387_MPXEND_REGNUM(tdep) \ |
59 | (I387_BND0R_REGNUM (tdep) + I387_NUM_MPX_REGS) | |
5716833c | 60 | |
61113f8b MK |
61 | /* Print out the i387 floating point state. */ |
62 | ||
63 | extern void i387_print_float_info (struct gdbarch *gdbarch, | |
64 | struct ui_file *file, | |
8e186fd6 AC |
65 | struct frame_info *frame, |
66 | const char *args); | |
61113f8b | 67 | |
83acabca DJ |
68 | /* Return nonzero if a value of type TYPE stored in register REGNUM |
69 | needs any special handling. */ | |
70 | ||
0abe36f5 MD |
71 | extern int i387_convert_register_p (struct gdbarch *gdbarch, int regnum, |
72 | struct type *type); | |
83acabca | 73 | |
d532c08f MK |
74 | /* Read a value of type TYPE from register REGNUM in frame FRAME, and |
75 | return its contents in TO. */ | |
76 | ||
8dccd430 PA |
77 | extern int i387_register_to_value (struct frame_info *frame, int regnum, |
78 | struct type *type, gdb_byte *to, | |
79 | int *optimizedp, int *unavailablep); | |
d532c08f MK |
80 | |
81 | /* Write the contents FROM of a value of type TYPE into register | |
82 | REGNUM in frame FRAME. */ | |
83 | ||
84 | extern void i387_value_to_register (struct frame_info *frame, int regnum, | |
42835c2b | 85 | struct type *type, const gdb_byte *from); |
2de139ba MK |
86 | \f |
87 | ||
88 | /* Size of the memory area use by the 'fsave' and 'fxsave' | |
89 | instructions. */ | |
90 | #define I387_SIZEOF_FSAVE 108 | |
91 | #define I387_SIZEOF_FXSAVE 512 | |
d532c08f | 92 | |
41d041d6 MK |
93 | /* Fill register REGNUM in REGCACHE with the appropriate value from |
94 | *FSAVE. This function masks off any of the reserved bits in | |
95 | *FSAVE. */ | |
f31e928c | 96 | |
41d041d6 MK |
97 | extern void i387_supply_fsave (struct regcache *regcache, int regnum, |
98 | const void *fsave); | |
b2450fc5 | 99 | |
63b6c53f MK |
100 | /* Fill register REGNUM (if it is a floating-point register) in *FSAVE |
101 | with the value from REGCACHE. If REGNUM is -1, do this for all | |
102 | registers. This function doesn't touch any of the reserved bits in | |
103 | *FSAVE. */ | |
104 | ||
105 | extern void i387_collect_fsave (const struct regcache *regcache, int regnum, | |
106 | void *fsave); | |
107 | ||
41d041d6 | 108 | /* Fill register REGNUM in REGCACHE with the appropriate |
ed504bdf MK |
109 | floating-point or SSE register value from *FXSAVE. This function |
110 | masks off any of the reserved bits in *FXSAVE. */ | |
e2890f08 | 111 | |
41d041d6 MK |
112 | extern void i387_supply_fxsave (struct regcache *regcache, int regnum, |
113 | const void *fxsave); | |
e2890f08 | 114 | |
31aeac78 L |
115 | /* Similar to i387_supply_fxsave, but use XSAVE extended state. */ |
116 | ||
117 | extern void i387_supply_xsave (struct regcache *regcache, int regnum, | |
118 | const void *xsave); | |
119 | ||
80571bff MK |
120 | /* Fill register REGNUM (if it is a floating-point or SSE register) in |
121 | *FXSAVE with the value from REGCACHE. If REGNUM is -1, do this for | |
122 | all registers. This function doesn't touch any of the reserved | |
123 | bits in *FXSAVE. */ | |
124 | ||
125 | extern void i387_collect_fxsave (const struct regcache *regcache, int regnum, | |
126 | void *fxsave); | |
127 | ||
31aeac78 L |
128 | /* Similar to i387_collect_fxsave, but use XSAVE extended state. */ |
129 | ||
130 | extern void i387_collect_xsave (const struct regcache *regcache, | |
131 | int regnum, void *xsave, int gcore); | |
132 | ||
efb1c01c MK |
133 | /* Prepare the FPU stack in REGCACHE for a function return. */ |
134 | ||
135 | extern void i387_return_value (struct gdbarch *gdbarch, | |
136 | struct regcache *regcache); | |
137 | ||
e750d25e | 138 | #endif /* i387-tdep.h */ |