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Diffstat (limited to 'lib/libc/quad/quad.h')
| -rw-r--r-- | lib/libc/quad/quad.h | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/lib/libc/quad/quad.h b/lib/libc/quad/quad.h deleted file mode 100644 index d496fc6..0000000 --- a/lib/libc/quad/quad.h +++ /dev/null @@ -1,103 +0,0 @@ -/*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * This software was developed by the Computer Systems Engineering group - * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and - * contributed to Berkeley. - * - * 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. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. - * - * @(#)quad.h 8.1 (Berkeley) 6/4/93 - * $FreeBSD$ - */ - -/* - * Quad arithmetic. - * - * This library makes the following assumptions: - * - * - The type long long (aka quad_t) exists. - * - * - A quad variable is exactly twice as long as `long'. - * - * - The machine's arithmetic is two's complement. - * - * This library can provide 128-bit arithmetic on a machine with 128-bit - * quads and 64-bit longs, for instance, or 96-bit arithmetic on machines - * with 48-bit longs. - */ - -#include <sys/types.h> -#include <limits.h> - -/* - * Depending on the desired operation, we view a `long long' (aka quad_t) in - * one or more of the following formats. - */ -union uu { - quad_t q; /* as a (signed) quad */ - quad_t uq; /* as an unsigned quad */ - long sl[2]; /* as two signed longs */ - u_long ul[2]; /* as two unsigned longs */ -}; - -/* - * Define high and low longwords. - */ -#define H _QUAD_HIGHWORD -#define L _QUAD_LOWWORD - -/* - * Total number of bits in a quad_t and in the pieces that make it up. - * These are used for shifting, and also below for halfword extraction - * and assembly. - */ -#define QUAD_BITS (sizeof(quad_t) * CHAR_BIT) -#define LONG_BITS (sizeof(long) * CHAR_BIT) -#define HALF_BITS (sizeof(long) * CHAR_BIT / 2) - -/* - * Extract high and low shortwords from longword, and move low shortword of - * longword to upper half of long, i.e., produce the upper longword of - * ((quad_t)(x) << (number_of_bits_in_long/2)). (`x' must actually be u_long.) - * - * These are used in the multiply code, to split a longword into upper - * and lower halves, and to reassemble a product as a quad_t, shifted left - * (sizeof(long)*CHAR_BIT/2). - */ -#define HHALF(x) ((x) >> HALF_BITS) -#define LHALF(x) ((x) & ((1 << HALF_BITS) - 1)) -#define LHUP(x) ((x) << HALF_BITS) - -int __cmpdi2(quad_t a, quad_t b); -quad_t __divdi3(quad_t a, quad_t b); -quad_t __moddi3(quad_t a, quad_t b); -u_quad_t __qdivrem(u_quad_t u, u_quad_t v, u_quad_t *rem); -int __ucmpdi2(u_quad_t a, u_quad_t b); -u_quad_t __udivdi3(u_quad_t a, u_quad_t b); -u_quad_t __umoddi3(u_quad_t a, u_quad_t b); - -typedef unsigned int qshift_t; |
