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/*-
* Copyright (c) 1998 Doug Rabson
* 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 AND CONTRIBUTORS ``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: release/9.1.0/sys/ia64/include/fpu.h 138674 2004-12-11 06:15:12Z marcel $
*/
#ifndef _MACHINE_FPU_H_
#define _MACHINE_FPU_H_
/*
* Floating point status register bits.
*/
#define IA64_FPSR_TRAP_VD 0x0000000000000001L
#define IA64_FPSR_TRAP_DD 0x0000000000000002L
#define IA64_FPSR_TRAP_ZD 0x0000000000000004L
#define IA64_FPSR_TRAP_OD 0x0000000000000008L
#define IA64_FPSR_TRAP_UD 0x0000000000000010L
#define IA64_FPSR_TRAP_ID 0x0000000000000020L
#define IA64_FPSR_SF(i,v) ((v) << ((i)*13+6))
#define IA64_SF_FTZ 0x0001L
#define IA64_SF_WRE 0x0002L
#define IA64_SF_PC 0x000cL
#define IA64_SF_PC_0 0x0000L
#define IA64_SF_PC_1 0x0004L
#define IA64_SF_PC_2 0x0008L
#define IA64_SF_PC_3 0x000cL
#define IA64_SF_RC 0x0030L
#define IA64_SF_RC_NEAREST 0x0000L
#define IA64_SF_RC_NEGINF 0x0010L
#define IA64_SF_RC_POSINF 0x0020L
#define IA64_SF_RC_TRUNC 0x0030L
#define IA64_SF_TD 0x0040L
#define IA64_SF_V 0x0080L
#define IA64_SF_D 0x0100L
#define IA64_SF_Z 0x0200L
#define IA64_SF_O 0x0400L
#define IA64_SF_U 0x0800L
#define IA64_SF_I 0x1000L
#define IA64_SF_DEFAULT (IA64_SF_PC_3 | IA64_SF_RC_NEAREST)
#define IA64_FPSR_DEFAULT (IA64_FPSR_TRAP_VD \
| IA64_FPSR_TRAP_DD \
| IA64_FPSR_TRAP_ZD \
| IA64_FPSR_TRAP_OD \
| IA64_FPSR_TRAP_UD \
| IA64_FPSR_TRAP_ID \
| IA64_FPSR_SF(0, IA64_SF_DEFAULT) \
| IA64_FPSR_SF(1, (IA64_SF_DEFAULT \
| IA64_SF_TD \
| IA64_SF_WRE)) \
| IA64_FPSR_SF(2, (IA64_SF_DEFAULT \
| IA64_SF_TD)) \
| IA64_FPSR_SF(3, (IA64_SF_DEFAULT \
| IA64_SF_TD)))
struct fpswa_ret {
unsigned long status;
unsigned long err1;
unsigned long err2;
unsigned long err3;
};
struct fpswa_bundle {
long double bits; /* Force 16-byte alignment. */
};
struct fpswa_fpctx {
unsigned long mask_low; /* f63 - f2 */
unsigned long mask_high; /* f127 - f64 */
union _ia64_fpreg *fp_low_preserved; /* f2 - f5 */
union _ia64_fpreg *fp_low_volatile; /* f6 - f15 */
union _ia64_fpreg *fp_high_preserved; /* f16 - f31 */
union _ia64_fpreg *fp_high_volatile; /* f32 - f127 */
};
struct fpswa_iface {
unsigned int if_rev;
unsigned int __res;
struct fpswa_ret (*if_fpswa)(unsigned long, struct fpswa_bundle *,
unsigned long *, unsigned long *, unsigned long *, unsigned long *,
unsigned long *, struct fpswa_fpctx *);
};
#endif /* ! _MACHINE_FPU_H_ */