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/*-
* Copyright (c) 2002 by Thomas Moestl <tmm@FreeBSD.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LIBC_SPARC64_FPU_FPU_REG_H_
#define _LIBC_SPARC64_FPU_FPU_REG_H_
/*
* These are not really of type char[]. They are are arrays of functions defined
* in fpu_reg.S; each array member loads/stores a certain fpu register of the
* given size.
*/
extern char __fpu_ld32[];
extern char __fpu_st32[];
extern char __fpu_ld64[];
extern char __fpu_st64[];
/* Size of the functions in the arrays. */
#define FPU_LD32_SZ 8
#define FPU_ST32_SZ 8
#define FPU_LD64_SZ 8
#define FPU_ST64_SZ 8
/* Typedefs for convenient casts in the functions below. */
typedef void (fp_ldst32_fn)(u_int32_t *);
typedef void (fp_ldst64_fn)(u_int64_t *);
/*
* These are the functions that are actually used in the fpu emulation code to
* access the fp registers. They are usually not used more than once, so
* cacheing needs not be done here.
*/
static __inline u_int32_t
__fpu_getreg(int r)
{
u_int32_t rv;
((fp_ldst32_fn *)&__fpu_st32[r * FPU_ST32_SZ])(&rv);
return (rv);
}
static __inline u_int64_t
__fpu_getreg64(int r)
{
u_int64_t rv;
((fp_ldst64_fn *)&__fpu_st64[(r >> 1) * FPU_ST64_SZ])(&rv);
return (rv);
}
static __inline void
__fpu_setreg(int r, u_int32_t v)
{
((fp_ldst32_fn *)&__fpu_ld32[r * FPU_LD32_SZ])(&v);
}
static __inline void
__fpu_setreg64(int r, u_int64_t v)
{
((fp_ldst64_fn *)&__fpu_ld64[(r >> 1) * FPU_LD64_SZ])(&v);
}
#endif /* _LIBC_SPARC64_FPU_FPU_REG_H_ */
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