| /***************************************************************************** |
| * Copyright Statement: |
| * -------------------- |
| * This software is protected by Copyright and the information contained |
| * herein is confidential. The software may not be copied and the information |
| * contained herein may not be used or disclosed except with the written |
| * permission of MediaTek Inc. (C) 2012 |
| * |
| * BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES |
| * THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE") |
| * RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON |
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| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT. |
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| * SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR |
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| * SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM. |
| * |
| * BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE |
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| * |
| * THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE |
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| * THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC). |
| * |
| *****************************************************************************/ |
| |
| /******************************************************************************* |
| * Filename: |
| * --------- |
| * binnum.h |
| * |
| * Project: |
| * -------- |
| * MOLY |
| * |
| * Description: |
| * ------------ |
| * |
| * |
| * Author: |
| * ------- |
| * ------- |
| * |
| * |
| * ========================================================================== |
| * $Log$ |
| ****************************************************************************/ |
| /** |
| * @file binnum.h |
| * @brief binary number utilities |
| * @author Howard Chen |
| * |
| */ |
| #ifndef BINNUM_DEF |
| #define BINNUM_DEF |
| |
| #define BU_LOG2(_v) (((_v)==64)? 6: \ |
| ((_v)==32)? 5: \ |
| ((_v)==16)? 4: \ |
| ((_v)==8)? 3: \ |
| ((_v)==4)? 2: \ |
| ((_v)==2)? 1: \ |
| ((_v)==0)? 0: -1) |
| |
| #define BU_T_MSK(_n) ((1<<(_n))-1) |
| #define BU_F_MSK(_ms,_ls) (BU_T_MSK((_ms)-(_ls)+1)<<(_ls)) |
| #define BU_B_MSK(_n) (1 << (_n)) |
| #define BU_WID(_ms,_ls) ((_ms)-(_ls)+1) |
| |
| #define BU_ALN(_i, _n) ((_i) & ~BU_T_MSK(_n)) |
| |
| #define BU_RUP(_i, _n) BU_ALN((_i)+BU_T_MSK(_n), _n) |
| |
| /** |
| * @brief trucate <_i> to <_n> bits |
| */ |
| #define BU_TRU(_i, _n) ((_i) & BU_T_MSK(_n)) |
| |
| /** |
| * @brief get (<_ms>:<_ls>) field |
| */ |
| #define BU_G_FLD(_i,_ms,_ls) (((_i)<<(31-(_ms))) >> (31- (_ms) + (_ls))) |
| |
| /** |
| * @brief or (<_ms>:<_ls>) field |
| */ |
| #define BU_O_FLD(_i,_ms,_ls,_v) ((_i)|((BU_TRU(_v,BU_WID(_ms,_ls))<<(_ls)))) |
| |
| /** |
| * @brief clean (<_ms>:<_ls>) field |
| */ |
| #define BU_C_FLD(_i,_ms,_ls) ((_i) & ~BU_F_MSK(_ms,_ls)) |
| |
| /** |
| * @brief replace (<_ms>:<_ls>) field with <_v> |
| */ |
| #define BU_R_FLD(_i,_ms,_ls,_v) ((((_i)&~BU_F_MSK(_ms,_ls)))|((BU_TRU(_v,BU_WID(_ms,_ls))<<(_ls)))) |
| /** |
| * @brief get <_n> bit |
| */ |
| #define BU_G_BIT(_i,_n) BU_G_FLD(_i, _n, _n) |
| |
| /** |
| * @brief or <_n> bit with 0x1 |
| */ |
| #define BU_O_BIT(_i,_n) ((_i) |(1 << (_n))) |
| |
| /** |
| * @brief clean <_n> bit |
| */ |
| #define BU_C_BIT(_i,_n) ((_i) & ~BU_B_MSK(_n)) |
| |
| /** |
| * @brief replace <_n> bit with <_v> |
| */ |
| #define BU_R_BIT(_i,_n,_v) (((_i)&~BU_B_MSK(_n))|(((_v)&0x1)<<(_n))) |
| |
| #endif |