diff options
Diffstat (limited to 'sysdeps/ia64/fpu/s_significandf.S')
| -rw-r--r-- | sysdeps/ia64/fpu/s_significandf.S | 61 |
1 files changed, 27 insertions, 34 deletions
diff --git a/sysdeps/ia64/fpu/s_significandf.S b/sysdeps/ia64/fpu/s_significandf.S index d8cdc15..5c8299b 100644 --- a/sysdeps/ia64/fpu/s_significandf.S +++ b/sysdeps/ia64/fpu/s_significandf.S @@ -1,10 +1,10 @@ .file "significandf.s" -// Copyright (C) 2000, 2001, Intel Corporation + +// Copyright (c) 2000 - 2003, Intel Corporation // All rights reserved. -// -// Contributed 2/2/2000 by John Harrison, Ted Kubaska, Bob Norin, Shane Story, -// and Ping Tak Peter Tang of the Computational Software Lab, Intel Corporation. +// +// Contributed 2000 by the Intel Numerics Group, Intel Corporation // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are @@ -20,7 +20,7 @@ // * The name of Intel Corporation may not be used to endorse or promote // products derived from this software without specific prior written // permission. -// + // 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 @@ -35,13 +35,15 @@ // // 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. +// http://www.intel.com/software/products/opensource/libraries/num.htm. // // History //============================================================== -// 2/02/00: Initial version -// 2/03/00: Modified to improve speed -// 5/31/00: Fixed bug when x a double-extended denormal +// 02/02/00 Initial version +// 02/03/00 Modified to improve speed +// 05/31/00 Fixed bug when x a double-extended denormal +// 05/20/02 Cleaned up namespace and sf0 syntax +// 02/10/03 Reordered header: .section, .global, .proc, .align // // API //============================================================== @@ -55,18 +57,10 @@ // p6, p7 // // floating-point registers used: -// f8, f9, f10 - -#include "libm_support.h" - -.align 32 -.global significandf# +// f8, f9, f10 .section .text -.proc significandf# -.align 32 - -significandf: +GLOBAL_LIBM_ENTRY(significandf) // qnan snan inf norm unorm 0 -+ // 1 1 1 0 0 1 11 @@ -74,19 +68,19 @@ significandf: // f10 gets f8(sign) with f1(exp,significand) { .mfi nop.m 999 -(p0) fmerge.s f10 = f8,f1 + fmerge.s f10 = f8,f1 nop.i 999 } { .mfi nop.m 999 -(p0) fnorm f9 = f8 + fnorm.s0 f9 = f8 nop.i 999 ;; } // Test for denormal input { .mfi nop.m 999 -(p0) fclass.m.unc p7,p0 = f8, 0x0b + fclass.m.unc p7,p0 = f8, 0x0b nop.i 999 ;; } @@ -96,14 +90,14 @@ significandf: // return sign(f8) exp(f8) significand(f8), normalized. { .mfi nop.m 999 -(p0) fclass.m.unc p0,p6 = f8, 0xe7 + fclass.m.unc p0,p6 = f8, 0xe7 nop.i 999 ;; } { .mmb nop.m 999 nop.m 999 -(p7) br.cond.spnt L(SIGNIFICAND_DENORM) ;; // Branch if x denormal +(p7) br.cond.spnt SIGNIFICAND_DENORM ;; // Branch if x denormal } { .mfi @@ -114,29 +108,29 @@ significandf: { .mfb nop.m 999 -(p0) fnorm.s f8 = f8 -(p0) br.ret.sptk b0 ;; + fnorm.s.s0 f8 = f8 + br.ret.sptk b0 ;; } -L(SIGNIFICAND_DENORM): +SIGNIFICAND_DENORM: // Here if x denorm { .mfi nop.m 999 -(p0) fmerge.se f8 = f10,f9 + fmerge.se f8 = f10,f9 nop.i 999 ;; } // Check if fnorm(x) still denormal, means x double-extended denormal { .mfi nop.m 999 -(p0) fclass.m.unc p7,p0 = f9, 0x0b + fclass.m.unc p7,p0 = f9, 0x0b nop.i 999 ;; } // This will be the final result unless x double-extended denormal { .mfi nop.m 999 -(p0) fnorm.s f8 = f8 + fnorm.s.s0 f8 = f8 nop.i 999 ;; } @@ -151,9 +145,8 @@ L(SIGNIFICAND_DENORM): // Final normalization if x double-extended denorm { .mfb nop.m 999 -(p7) fnorm.s f8 = f8 -(p0) br.ret.sptk b0 ;; +(p7) fnorm.s.s0 f8 = f8 + br.ret.sptk b0 ;; } -.endp significandf -ASM_SIZE_DIRECTIVE(significandf) +GLOBAL_LIBM_END(significandf) |