diff options
Diffstat (limited to 'sys/arch/arm/include/fp.h')
| -rw-r--r-- | sys/arch/arm/include/fp.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/sys/arch/arm/include/fp.h b/sys/arch/arm/include/fp.h new file mode 100644 index 00000000000..5d9096e0fa5 --- /dev/null +++ b/sys/arch/arm/include/fp.h @@ -0,0 +1,87 @@ +/* $OpenBSD: fp.h,v 1.1 2004/02/01 05:09:49 drahn Exp $ */ +/* $NetBSD: fp.h,v 1.1 2001/01/10 19:02:06 bjh21 Exp $ */ + +/* + * Copyright (c) 1995 Mark Brinicombe. + * Copyright (c) 1995 Brini. + * All rights reserved. + * + * This code is derived from software written for Brini by Mark Brinicombe + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Brini. + * 4. The name of the company nor the name of the author may be used to + * endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI 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. + * + * RiscBSD kernel project + * + * fp.h + * + * FP info + * + * Created : 10/10/95 + */ + +#ifndef __ARM32_FP_H +#define __ARM32_FP_H + +/* + * An extended precision floating point number + */ + +typedef struct fp_extended_precision { + u_int32_t fp_exponent; + u_int32_t fp_mantissa_hi; + u_int32_t fp_mantissa_lo; +} fp_extended_precision_t; + +typedef struct fp_extended_precision fp_reg_t; + +/* + * Information about the FPE-SP state that is stored in the pcb + * + * This needs to move and be hidden from userland. + */ + +struct fpe_sp_state { + unsigned int fp_flags; + unsigned int fp_sr; + unsigned int fp_cr; + fp_reg_t fp_registers[16]; +}; + +/* + * Type for a saved FP context, if we want to translate the context to a + * user-readable form + */ + +typedef struct { + u_int32_t fpsr; + fp_extended_precision_t regs[8]; +} fp_state_t; + +#endif + +/* End of fp.h */ |