kai.ren | 3a9d0de | 2021-01-21 15:53:33 +0800 | [diff] [blame] | 1 | |
| 2 | /*============================================================================ |
| 3 | |
| 4 | This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic |
| 5 | Package, Release 3d, by John R. Hauser. |
| 6 | |
| 7 | Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of |
| 8 | California. All rights reserved. |
| 9 | |
| 10 | Redistribution and use in source and binary forms, with or without |
| 11 | modification, are permitted provided that the following conditions are met: |
| 12 | |
| 13 | 1. Redistributions of source code must retain the above copyright notice, |
| 14 | this list of conditions, and the following disclaimer. |
| 15 | |
| 16 | 2. Redistributions in binary form must reproduce the above copyright notice, |
| 17 | this list of conditions, and the following disclaimer in the documentation |
| 18 | and/or other materials provided with the distribution. |
| 19 | |
| 20 | 3. Neither the name of the University nor the names of its contributors may |
| 21 | be used to endorse or promote products derived from this software without |
| 22 | specific prior written permission. |
| 23 | |
| 24 | THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY |
| 25 | EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 26 | WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE |
| 27 | DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY |
| 28 | DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 29 | (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 30 | LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 31 | ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 32 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 33 | SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 34 | |
| 35 | =============================================================================*/ |
| 36 | |
| 37 | #include <stdint.h> |
| 38 | |
| 39 | #include "platform.h" |
| 40 | #include "primitiveTypes.h" |
| 41 | |
| 42 | #ifndef softfloat_compare128M |
| 43 | |
| 44 | int_fast8_t softfloat_compare128M( const uint32_t *aPtr, const uint32_t *bPtr ) |
| 45 | { |
| 46 | unsigned int index, lastIndex; |
| 47 | uint32_t wordA, wordB; |
| 48 | |
| 49 | index = indexWordHi( 4 ); |
| 50 | lastIndex = indexWordLo( 4 ); |
| 51 | for (;;) { |
| 52 | wordA = aPtr[index]; |
| 53 | wordB = bPtr[index]; |
| 54 | if ( wordA != wordB ) return (wordA < wordB) ? -1 : 1; |
| 55 | if ( index == lastIndex ) break; |
| 56 | index -= wordIncr; |
| 57 | } |
| 58 | return 0; |
| 59 | |
| 60 | } |
| 61 | |
| 62 | #endif |
| 63 | |