TI DSP中各种数据类型的定义

DSP

TI DSP中各种数据类型的定义

2019-07-13 10:08发布生成海报

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DSP/BIOS中的匈牙利记法为:
　 Sm开头的表示8-bit类型；
    Md开头的表示16-bit类型；
    Lg开头的表示32-bit类型；
    Int表示有符号整型；
　 Uns表示无符号类型；
    Bits表示按bit计算类型；

/*  ============================================================================ 
*   Copyright (c) Texas Instruments Inc 2002, 2003, 2004, 2005                  
*                      
*   Use of this software is controlled by the terms and conditions found in the 
*   license agreement under which this software has been supplied.              
*   =========================================================================== 
*/

/* 
*  ======== tistdtypes.h ======== 
*/

/* 
* These types are also defined by other TI components.  They are bracketed 
* with _TI_STD_TYPES to avoid warnings for duplicate definition. 
* 
* You may get warnings about duplicate type definitions when using this 
* header file with earlier versions of DSP/BIOS and CSL. 
* 
* You can use the '-pds303' compiler option to suppress these warnings. 
*/ 
#ifndef _TI_STD_TYPES 
#define _TI_STD_TYPES

/* 
* This '#ifndef STD_' is needed to protect from duplicate definitions 
* of Int, Uns, etc. in DSP/BIOS v4.x (e.g. 4.90, 4.80) since these versions 
* of DSP/BIOS did not contain the '#ifndef_TI_STD_TYPES' logic. 
*/ 
#ifndef STD_

/* 
* Aliases for standard C types 
*/ 
typedef int                 Int; 
typedef unsigned            Uns; 
typedef char                Char;

/* pointer to null-terminated character sequence */ 
typedef char                *String;

typedef void                *Ptr;       /* pointer to arbitrary type */

typedef unsigned short      Bool;       /* boolean */

#endif /* STD_ */

/* 
* Uint8, Uint16, Uint32, etc are defined to be "smallest unit of 
* available storage that is large enough to hold unsigned or integer 
* of specified size". 
*/

/* Handle the 6x ISA */ 
#if defined(_TMS320C6X) 
/* Unsigned integer definitions (32bit, 16bit, 8bit) follow... */ 
typedef unsigned int    Uint32_t; 
typedef unsigned short  Uint16_t; 
typedef unsigned char   Uint8_t;

/* Signed integer definitions (32bit, 16bit, 8bit) follow... */ 
typedef int             Int32_t; 
typedef short           Int16_t; 
typedef char            Int8_t;

/* Handle the 54x, 55x and 28x ISAs */ 
#elif defined(_TMS320C5XX) || defined(__TMS320C55X__) || defined(_TMS320C28X) 
/* Unsigned integer definitions (32bit, 16bit, 8bit) follow... */ 
typedef unsigned long   Uint32; 
typedef unsigned short  Uint16; 
typedef unsigned char   Uint8;

/* Signed integer definitions (32bit, 16bit, 8bit) follow... */ 
typedef long            Int32; 
typedef short           Int16; 
typedef char            Int8;

#else 
/* Other ISAs not supported */ 
#error <tistdtypes.h> is not supported for this target 
#endif  /* defined(_6x_) */

#endif  /* _TI_STD_TYPES */

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