uae_cpu/fpu/types.h

/*
 *  types.h - basic types for fpu registers
 *
 *  Basilisk II (C) 1997-1999 Christian Bauer
 *
 *  MC68881/68040 fpu emulation
 *  
 *  Original UAE FPU, copyright 1996 Herman ten Brugge
 *  Rewrite for x86, copyright 1999-2000 Lauri Pesonen
 *  New framework, copyright 2000 Gwenole Beauchesne
 *  Adapted for JIT compilation (c) Bernd Meyer, 2000
 *  
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef FPU_TYPES_H
#define FPU_TYPES_H

#include "sysdeps.h"

/* Default behavior is *not* to use long doubles */
#define USE_LONG_DOUBLE 0

/* -------------------------------------------------------------------------- */
/* --- Original UAE fpu core                                              --- */
/* -------------------------------------------------------------------------- */

#if defined(FPU_UAE)

/* 4-byte floats */
#if SIZEOF_FLOAT == 4
typedef float uae_f32;
#elif SIZEOF_DOUBLE == 4
typedef double uae_f32;
#else
#error "No 4 byte float type, you lose."
#endif

/* 8-byte floats */
#if SIZEOF_DOUBLE == 8
typedef double uae_f64;
#elif SIZEOF_LONG_DOUBLE == 8
typedef long double uae_f64;
#else
#error "No 8 byte float type, you lose."
#endif

/* Original UAE FPU registers are only 8 bytes long */
typedef uae_f64         fpu_register;
typedef fpu_register    fpu_extended;
typedef uae_f64         fpu_double;
typedef uae_f32         fpu_single;

/* -------------------------------------------------------------------------- */
/* --- Optimized core for x86                                             --- */
/* -------------------------------------------------------------------------- */

#elif defined(FPU_X86)

/* 4-byte floats */
#if SIZEOF_FLOAT == 4
typedef float uae_f32;
#elif SIZEOF_DOUBLE == 4
typedef double uae_f32;
#else
#error "No 4 byte float type, you lose."
#endif

/* 8-byte floats */
#if SIZEOF_DOUBLE == 8
typedef float uae_f64;
#elif SIZEOF_LONG_DOUBLE == 8
typedef double uae_f64;
#else
#error "No 8 byte float type, you lose."
#endif

/* At least 10-byte floats are required */
#if SIZEOF_LONG_DOUBLE >= 10
typedef long double fpu_register;
#else
#error "No float type at least 10 bytes long, you lose."
#endif

/* X86 FPU has a custom register type that maps to a native X86 register */
typedef fpu_register    fpu_extended;
typedef uae_f64         fpu_double;
typedef uae_f32         fpu_single;

/* -------------------------------------------------------------------------- */
/* --- C99 implementation                                                 --- */
/* -------------------------------------------------------------------------- */

#elif defined(FPU_IEEE)

/* 4-byte floats */
#if SIZEOF_FLOAT == 4
typedef float uae_f32;
#elif SIZEOF_DOUBLE == 4
typedef double uae_f32;
#else
#error "No 4 byte float type, you lose."
#endif

/* 8-byte floats */
#if SIZEOF_DOUBLE == 8
typedef double uae_f64;
#elif SIZEOF_LONG_DOUBLE == 8
typedef long double uae_f64;
#else
#error "No 8 byte float type, you lose."
#endif

/* 12-byte or 16-byte floats */
#if SIZEOF_LONG_DOUBLE == 12
typedef long double uae_f96;
typedef uae_f96 fpu_register;
#elif SIZEOF_LONG_DOUBLE == 16
typedef long double uae_f128;
typedef uae_f128 fpu_register;
#else
#error "No float type bigger than 8 bytes, you lose."
#endif

/* We *do* use long doubles for the IEEE-based FPE */
#undef  USE_LONG_DOUBLE
#define USE_LONG_DOUBLE 1

/* We need all those floating-point types */
typedef fpu_register    fpu_extended;
typedef uae_f64         fpu_double;
typedef uae_f32         fpu_single;

#endif

#endif /* FPU_TYPES_H */
Revision:	1.1
Committed:	2002-09-13T12:50:40Z (21 years, 10 months ago) by gbeauche
Content type:	text/plain
Branch:	MAIN
Log Message:	* Basilisk II JIT integration, phase 2: - Add new FPU core architecture - Clean fpu_x86_asm.h as it is no longer automatically generated
#	User	Rev	Content
1	gbeauche	1.1	/*
2			* types.h - basic types for fpu registers
3			*
4			* Basilisk II (C) 1997-1999 Christian Bauer
5			*
6			* MC68881/68040 fpu emulation
7			*
8			* Original UAE FPU, copyright 1996 Herman ten Brugge
9			* Rewrite for x86, copyright 1999-2000 Lauri Pesonen
10			* New framework, copyright 2000 Gwenole Beauchesne
11			* Adapted for JIT compilation (c) Bernd Meyer, 2000
12			*
13			* This program is free software; you can redistribute it and/or modify
14			* it under the terms of the GNU General Public License as published by
15			* the Free Software Foundation; either version 2 of the License, or
16			* (at your option) any later version.
17			*
18			* This program is distributed in the hope that it will be useful,
19			* but WITHOUT ANY WARRANTY; without even the implied warranty of
20			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21			* GNU General Public License for more details.
22			*
23			* You should have received a copy of the GNU General Public License
24			* along with this program; if not, write to the Free Software
25			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26			*/
27
28			#ifndef FPU_TYPES_H
29			#define FPU_TYPES_H
30
31			#include "sysdeps.h"
32
33			/* Default behavior is not to use long doubles */
34			#define USE_LONG_DOUBLE 0
35
36			/* -------------------------------------------------------------------------- */
37			/* --- Original UAE fpu core --- */
38			/* -------------------------------------------------------------------------- */
39
40			#if defined(FPU_UAE)
41
42			/* 4-byte floats */
43			#if SIZEOF_FLOAT == 4
44			typedef float uae_f32;
45			#elif SIZEOF_DOUBLE == 4
46			typedef double uae_f32;
47			#else
48			#error "No 4 byte float type, you lose."
49			#endif
50
51			/* 8-byte floats */
52			#if SIZEOF_DOUBLE == 8
53			typedef double uae_f64;
54			#elif SIZEOF_LONG_DOUBLE == 8
55			typedef long double uae_f64;
56			#else
57			#error "No 8 byte float type, you lose."
58			#endif
59
60			/* Original UAE FPU registers are only 8 bytes long */
61			typedef uae_f64 fpu_register;
62			typedef fpu_register fpu_extended;
63			typedef uae_f64 fpu_double;
64			typedef uae_f32 fpu_single;
65
66			/* -------------------------------------------------------------------------- */
67			/* --- Optimized core for x86 --- */
68			/* -------------------------------------------------------------------------- */
69
70			#elif defined(FPU_X86)
71
72			/* 4-byte floats */
73			#if SIZEOF_FLOAT == 4
74			typedef float uae_f32;
75			#elif SIZEOF_DOUBLE == 4
76			typedef double uae_f32;
77			#else
78			#error "No 4 byte float type, you lose."
79			#endif
80
81			/* 8-byte floats */
82			#if SIZEOF_DOUBLE == 8
83			typedef float uae_f64;
84			#elif SIZEOF_LONG_DOUBLE == 8
85			typedef double uae_f64;
86			#else
87			#error "No 8 byte float type, you lose."
88			#endif
89
90			/* At least 10-byte floats are required */
91			#if SIZEOF_LONG_DOUBLE >= 10
92			typedef long double fpu_register;
93			#else
94			#error "No float type at least 10 bytes long, you lose."
95			#endif
96
97			/* X86 FPU has a custom register type that maps to a native X86 register */
98			typedef fpu_register fpu_extended;
99			typedef uae_f64 fpu_double;
100			typedef uae_f32 fpu_single;
101
102			/* -------------------------------------------------------------------------- */
103			/* --- C99 implementation --- */
104			/* -------------------------------------------------------------------------- */
105
106			#elif defined(FPU_IEEE)
107
108			/* 4-byte floats */
109			#if SIZEOF_FLOAT == 4
110			typedef float uae_f32;
111			#elif SIZEOF_DOUBLE == 4
112			typedef double uae_f32;
113			#else
114			#error "No 4 byte float type, you lose."
115			#endif
116
117			/* 8-byte floats */
118			#if SIZEOF_DOUBLE == 8
119			typedef double uae_f64;
120			#elif SIZEOF_LONG_DOUBLE == 8
121			typedef long double uae_f64;
122			#else
123			#error "No 8 byte float type, you lose."
124			#endif
125
126			/* 12-byte or 16-byte floats */
127			#if SIZEOF_LONG_DOUBLE == 12
128			typedef long double uae_f96;
129			typedef uae_f96 fpu_register;
130			#elif SIZEOF_LONG_DOUBLE == 16
131			typedef long double uae_f128;
132			typedef uae_f128 fpu_register;
133			#else
134			#error "No float type bigger than 8 bytes, you lose."
135			#endif
136
137			/* We do use long doubles for the IEEE-based FPE */
138			#undef USE_LONG_DOUBLE
139			#define USE_LONG_DOUBLE 1
140
141			/* We need all those floating-point types */
142			typedef fpu_register fpu_extended;
143			typedef uae_f64 fpu_double;
144			typedef uae_f32 fpu_single;
145
146			#endif
147
148			#endif /* FPU_TYPES_H */