66fe5d160ff37d4cd2025653ebdc850c329aaf58
1 /* Simulator Floating-point support.
2 Copyright (C) 1997 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
5 This file is part of GDB, the GNU debugger.
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 2, or (at your option)
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.
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
32 /* register <-> sim_fpu */
34 INLINE_SIM_FPU (sim_fpu
)
35 sim_fpu_32to (unsigned32 s
)
38 ans
.val
= *(float*) &s
;
43 INLINE_SIM_FPU (sim_fpu
)
44 sim_fpu_64to (unsigned64 s
)
47 ans
.val
= *(double*) &s
;
52 INLINE_SIM_FPU (unsigned32
)
53 sim_fpu_to32 (sim_fpu l
)
56 return *(unsigned32
*) &s
;
60 INLINE_SIM_FPU (unsigned64
)
61 sim_fpu_to64 (sim_fpu s
)
63 return *(unsigned64
*) &s
.val
;
69 INLINE_SIM_FPU (sim_fpu
)
70 sim_fpu_add (sim_fpu l
,
74 ans
.val
= l
.val
+ r
.val
;
79 INLINE_SIM_FPU (sim_fpu
)
80 sim_fpu_sub (sim_fpu l
,
84 ans
.val
= l
.val
- r
.val
;
89 INLINE_SIM_FPU (sim_fpu
)
90 sim_fpu_mul (sim_fpu l
,
94 ans
.val
= l
.val
* r
.val
;
99 INLINE_SIM_FPU (sim_fpu
)
100 sim_fpu_div (sim_fpu l
,
104 ans
.val
= l
.val
/ r
.val
;
109 INLINE_SIM_FPU (sim_fpu
)
110 sim_fpu_inv (sim_fpu r
)
118 INLINE_SIM_FPU (sim_fpu
)
119 sim_fpu_sqrt (sim_fpu r
)
122 ans
.val
= sqrt (r
.val
);
127 /* int/long -> sim_fpu */
129 INLINE_SIM_FPU (sim_fpu
)
130 sim_fpu_i32to (signed32 s
)
138 INLINE_SIM_FPU (sim_fpu
)
139 sim_fpu_u32to (unsigned32 s
)
147 INLINE_SIM_FPU (sim_fpu
)
148 sim_fpu_i64to (signed64 s
)
156 INLINE_SIM_FPU (sim_fpu
)
157 sim_fpu_u64to (unsigned64 s
)
165 /* sim_fpu -> host format */
167 INLINE_SIM_FPU (float)
168 sim_fpu_2f (sim_fpu f
)
174 INLINE_SIM_FPU (double)
175 sim_fpu_2d (sim_fpu s
)
182 INLINE_SIM_FPU (sim_fpu
)
193 INLINE_SIM_FPU (sim_fpu
)
194 sim_fpu_d2 (double d
)
207 sim_fpu_is_nan (sim_fpu d
)
209 return 0; /* FIXME - detect NaN */
213 /* Compare operators */
216 sim_fpu_is_lt (sim_fpu l
,
219 return (l
.val
< r
.val
);
223 sim_fpu_is_le (sim_fpu l
,
226 return (l
.val
<= r
.val
);
230 sim_fpu_is_eq (sim_fpu l
,
233 return (l
.val
== r
.val
);
237 sim_fpu_is_ne (sim_fpu l
,
240 return (l
.val
!= r
.val
);
244 sim_fpu_is_ge (sim_fpu l
,
247 return (l
.val
>= r
.val
);
251 sim_fpu_is_gt (sim_fpu l
,
254 return (l
.val
> r
.val
);
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