12c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* 22c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Copyright (C) 2004-2010 NXP Software 32c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Copyright (C) 2010 The Android Open Source Project 42c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * 52c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Licensed under the Apache License, Version 2.0 (the "License"); 62c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * you may not use this file except in compliance with the License. 72c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * You may obtain a copy of the License at 82c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * 92c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * http://www.apache.org/licenses/LICENSE-2.0 102c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * 112c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Unless required by applicable law or agreed to in writing, software 122c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * distributed under the License is distributed on an "AS IS" BASIS, 132c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 142c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * See the License for the specific language governing permissions and 152c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * limitations under the License. 162c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 172c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 182c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*######################################################################################*/ 192c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* Include files */ 202c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*######################################################################################*/ 212c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 222c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "ScalarArithmetic.h" 232c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 242c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/**************************************************************************************** 252c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Name : Abs_32() 262c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Input : Signed 32-bit integer 272c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Output : 282c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Returns : Absolute value 292c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Description : Absolute value with maximum negative value corner case 302c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Remarks : 312c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent ****************************************************************************************/ 322c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 332c8e5cab3faa6d360e222b7a6c40a80083d021acEric LaurentLVM_INT32 Abs_32(LVM_INT32 input) 342c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent{ 352c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if(input < 0) 362c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 372c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (input == (LVM_INT32)(0x80000000U)) 382c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 392c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* The corner case, so set to the maximum positive value */ 402c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent input=(LVM_INT32) 0x7fffffff; 412c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 422c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent else 432c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 442c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* Negative input, so invert */ 452c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent input = (LVM_INT32)(-input); 462c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 472c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 482c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent return input; 492c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent} 502c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 51