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author | dfr <dfr@FreeBSD.org> | 2001-10-20 15:17:31 +0000 |
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committer | dfr <dfr@FreeBSD.org> | 2001-10-20 15:17:31 +0000 |
commit | 368f88c747f76ab917edbdfc1aa48c0cc5f6c2ce (patch) | |
tree | 663eee342f1a0b836b2429157f674309d4f9885c /lib | |
parent | 03bd269b0899fdb2d1b7556e544aa8c6e9bf0dfd (diff) | |
download | FreeBSD-src-368f88c747f76ab917edbdfc1aa48c0cc5f6c2ce.zip FreeBSD-src-368f88c747f76ab917edbdfc1aa48c0cc5f6c2ce.tar.gz |
Add __divdf3(), __divsf3() and __infinity[].
Obtained from: Intel (for the divide code)
Diffstat (limited to 'lib')
-rw-r--r-- | lib/libc/ia64/gen/Makefile.inc | 3 | ||||
-rw-r--r-- | lib/libc/ia64/gen/__divdf3.S | 143 | ||||
-rw-r--r-- | lib/libc/ia64/gen/__divsf3.S | 117 | ||||
-rw-r--r-- | lib/libc/ia64/gen/infinity.c | 34 |
4 files changed, 296 insertions, 1 deletions
diff --git a/lib/libc/ia64/gen/Makefile.inc b/lib/libc/ia64/gen/Makefile.inc index 92d8814..1fa3dc5 100644 --- a/lib/libc/ia64/gen/Makefile.inc +++ b/lib/libc/ia64/gen/Makefile.inc @@ -1,6 +1,7 @@ # $FreeBSD$ -SRCS+= _setjmp.S fabs.S frexp.c isinf.c ldexp.c modf.c setjmp.S +SRCS+= _setjmp.S fabs.S frexp.c infinity.c isinf.c ldexp.c modf.c setjmp.S SRCS+= sigsetjmp.S SRCS+= __divdi3.S __divsi3.S __moddi3.S __modsi3.S SRCS+= __udivdi3.S __udivsi3.S __umoddi3.S __umodsi3.S +SRCS+= __divdf3.S __divsf3.S diff --git a/lib/libc/ia64/gen/__divdf3.S b/lib/libc/ia64/gen/__divdf3.S new file mode 100644 index 0000000..f27d3e0 --- /dev/null +++ b/lib/libc/ia64/gen/__divdf3.S @@ -0,0 +1,143 @@ +// $FreeBSD$ + +// +// Copyright (c) 2000, Intel Corporation +// All rights reserved. +// +// Contributed 2/15/2000 by Marius Cornea, John Harrison, Cristina Iordache, +// Ted Kubaska, Bob Norin, and Shane Story of the Computational Software Lab, +// Intel Corporation. +// +// WARRANTY DISCLAIMER +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 INTEL OR ITS +// 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. +// +// Intel Corporation is the author of this code, and requests that all +// problem reports or change requests be submitted to it directly at +// http://developer.intel.com/opensource. +// + +#include <machine/asm.h> + + .section .text + +ENTRY(__divdf3, 0) +{ .mfi + // a is in f8 + // b is in f9 + + // predicate registers used: p6 + // floating-point registers used: f6, f7, f8, f9, f10, f11 + + // load a, the first argument, in f6 + nop.m 0 + mov f6=f8 + nop.i 0 +} { .mfi + // load b, the second argument, in f7 + nop.m 0 + mov f7=f9 + nop.i 0;; +} { .mfi + + // BEGIN DOUBLE PRECISION LATENCY-OPTIMIZED DIVIDE ALGORITHM + + nop.m 0 + // Step (1) + // y0 = 1 / b in f8 + frcpa.s0 f8,p6=f6,f7 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (2) + // q0 = a * y0 in f9 + (p6) fma.s1 f9=f6,f8,f0 + nop.i 0 +} { .mfi + nop.m 0 + // Step (3) + // e0 = 1 - b * y0 in f10 + (p6) fnma.s1 f10=f7,f8,f1 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (4) + // q1 = q0 + e0 * q0 in f9 + (p6) fma.s1 f9=f10,f9,f9 + nop.i 0 +} { .mfi + nop.m 0 + // Step (5) + // e1 = e0 * e0 in f11 + (p6) fma.s1 f11=f10,f10,f0 + nop.i 0 +} { .mfi + nop.m 0 + // Step (6) + // y1 = y0 + e0 * y0 in f8 + (p6) fma.s1 f8=f10,f8,f8 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (7) + // q2 = q1 + e1 * q1 in f9 + (p6) fma.s1 f9=f11,f9,f9 + nop.i 0 +} { .mfi + nop.m 0 + // Step (8) + // e2 = e1 * e1 in f10 + (p6) fma.s1 f10=f11,f11,f0 + nop.i 0 +} { .mfi + nop.m 0 + // Step (9) + // y2 = y1 + e1 * y1 in f8 + (p6) fma.s1 f8=f11,f8,f8 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (10) + // q3 = q2 + e2 * q2 in f9 + (p6) fma.d.s1 f9=f10,f9,f9 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (11) + // y3 = y2 + e2 * y2 in f8 + (p6) fma.s1 f8=f10,f8,f8 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (12) + // r0 = a - b * q3 in f6 + (p6) fnma.d.s1 f6=f7,f9,f6 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (13) + // q4 = q3 + r0 * y3 in f8 + (p6) fma.d.s0 f8=f6,f8,f9 + nop.i 0;; + + // END DOUBLE PRECISION LATENCY-OPTIMIZED DIVIDE ALGORITHM + +} { .mib + nop.m 0 + nop.i 0 + // return + br.ret.sptk b0;; +} + +END(__divdf3) + diff --git a/lib/libc/ia64/gen/__divsf3.S b/lib/libc/ia64/gen/__divsf3.S new file mode 100644 index 0000000..e962415 --- /dev/null +++ b/lib/libc/ia64/gen/__divsf3.S @@ -0,0 +1,117 @@ +// $FreeBSD$ + +// +// Copyright (c) 2000, Intel Corporation +// All rights reserved. +// +// Contributed 2/15/2000 by Marius Cornea, John Harrison, Cristina Iordache, +// Ted Kubaska, Bob Norin, and Shane Story of the Computational Software Lab, +// Intel Corporation. +// +// WARRANTY DISCLAIMER +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 INTEL OR ITS +// 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. +// +// Intel Corporation is the author of this code, and requests that all +// problem reports or change requests be submitted to it directly at +// http://developer.intel.com/opensource. +// + +#include <machine/asm.h> + +ENTRY(__divsf3, 0) +{ .mfi + // a is in f8 + // b is in f9 + + // general registers used: r31, r32, r33, r34 + // predicate registers used: p6 + // floating-point registers used: f6, f7, f8 + + nop.m 0 + // load a, the first argument, in f6 + mov f6=f8 + nop.i 0;; +} { .mfi + nop.m 0 + // load b, the second argument, in f7 + mov f7=f9 + nop.i 0;; +} { .mfi + + // BEGIN SINGLE PRECISION LATENCY-OPTIMIZED DIVIDE ALGORITHM + + nop.m 0 + // Step (1) + // y0 = 1 / b in f8 + frcpa.s0 f8,p6=f6,f7 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (2) + // q0 = a * y0 in f6 + (p6) fma.s1 f6=f6,f8,f0 + nop.i 0 +} { .mfi + nop.m 0 + // Step (3) + // e0 = 1 - b * y0 in f7 + (p6) fnma.s1 f7=f7,f8,f1 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (4) + // q1 = q0 + e0 * q0 in f6 + (p6) fma.s1 f6=f7,f6,f6 + nop.i 0 +} { .mfi + nop.m 0 + // Step (5) + // e1 = e0 * e0 in f7 + (p6) fma.s1 f7=f7,f7,f0 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (6) + // q2 = q1 + e1 * q1 in f6 + (p6) fma.s1 f6=f7,f6,f6 + nop.i 0 +} { .mfi + nop.m 0 + // Step (7) + // e2 = e1 * e1 in f7 + (p6) fma.s1 f7=f7,f7,f0 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (8) + // q3 = q2 + e2 * q2 in f6 + (p6) fma.d.s1 f6=f7,f6,f6 + nop.i 0;; +} { .mfi + nop.m 0 + // Step (9) + // q3' = q3 in f8 + (p6) fma.s.s0 f8=f6,f1,f0 + nop.i 0;; + + // END SINGLE PRECISION LATENCY-OPTIMIZED DIVIDE ALGORITHM + +} { .mmb + nop.m 0 + nop.m 0 + // return + br.ret.sptk b0;; +} + +END(__divsf3) diff --git a/lib/libc/ia64/gen/infinity.c b/lib/libc/ia64/gen/infinity.c new file mode 100644 index 0000000..d14057f --- /dev/null +++ b/lib/libc/ia64/gen/infinity.c @@ -0,0 +1,34 @@ +/* $NetBSD: infinity.c,v 1.1 1995/02/10 17:50:23 cgd Exp $ */ +/* $FreeBSD$ */ + +/* + * Copyright (c) 1994, 1995 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Chris G. Demetriou + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +#include <math.h> + +/* bytes for +Infinity on an ia64 (IEEE double format) */ +char __infinity[] = { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f }; |