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