2 * Copyright (c) 2002 by Thomas Moestl <tmm@FreeBSD.org>.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
18 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
21 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
23 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #ifndef _LIBC_SPARC64_FPU_FPU_REG_H_
29 #define _LIBC_SPARC64_FPU_FPU_REG_H_
32 * These are not really of type char[]. They are are arrays of functions defined
33 * in fpu_reg.S; each array member loads/stores a certain fpu register of the
36 extern char __fpu_ld32[];
37 extern char __fpu_st32[];
38 extern char __fpu_ld64[];
39 extern char __fpu_st64[];
41 /* Size of the functions in the arrays. */
47 /* Typedefs for convenient casts in the functions below. */
48 typedef void (fp_ldst32_fn)(u_int32_t *);
49 typedef void (fp_ldst64_fn)(u_int64_t *);
52 * These are the functions that are actually used in the fpu emulation code to
53 * access the fp registers. They are usually not used more than once, so
54 * cacheing needs not be done here.
56 static __inline u_int32_t
61 ((fp_ldst32_fn *)&__fpu_st32[r * FPU_ST32_SZ])(&rv);
65 static __inline u_int64_t
70 ((fp_ldst64_fn *)&__fpu_st64[(r >> 1) * FPU_ST64_SZ])(&rv);
75 __fpu_setreg(int r, u_int32_t v)
78 ((fp_ldst32_fn *)&__fpu_ld32[r * FPU_LD32_SZ])(&v);
82 __fpu_setreg64(int r, u_int64_t v)
85 ((fp_ldst64_fn *)&__fpu_ld64[(r >> 1) * FPU_LD64_SZ])(&v);
88 #endif /* _LIBC_SPARC64_FPU_FPU_REG_H_ */