globalv.h

关于DVD的MPEG2用的DSP代码,在DSP的实现MPEG的压缩,解压算法.

;
;
;	Module:	globalv.h
;
;	shared variables in local memory
;
#define LOCAL_BASE 0x500            //overlay with Treble filter for the moment

#ifndef EFFECT

#define	LIicfg		%(LOCAL_BASE+0x0)
#define	LIocfg		%(LOCAL_BASE+0x2)
#define LIfrmsize       %(LOCAL_BASE+0x4)
#define	LIstatus	%(LOCAL_BASE+0x6)
#define	LIMpegAttr	%(LOCAL_BASE+0x8)		// for picture attribute

#define LBFIFO_flag     %(LOCAL_BASE+0xa)
#define LBblknum        %(LOCAL_BASE+0xb)
#define	LBPCM_flag	%(LOCAL_BASE+0xc)
#define LBPCMlow        %(LOCAL_BASE+0xe)

#define	LWpcmscale	%(LOCAL_BASE+0x10)	
#define	LWibufRdPtr	%(LOCAL_BASE+0x14)
#define	LWentry		%(LOCAL_BASE+0x18)		// for decoder entry
#define	LWPCMentry	%(LOCAL_BASE+0x1c)
#define	LWhungrySTC	%(LOCAL_BASE+0x24)
#define	LWpicCount	%(LOCAL_BASE+0x28)
#define LWbytecount     %(LOCAL_BASE+0x2c)
#define LWFrameCount    %(LOCAL_BASE+0x30)
#define LWStartPTS      %(LOCAL_BASE+0x34)

#endif  //EFFECT

// match 0x5e0 of mpeg dma_tmp_reg
#define LWMacroTemp     %(LOCAL_BASE+0xe0)      //used in DMA Macro def in regdef.h

//#define	LWTempR20	%(LOCAL_BASE+0x3c)
//#define	LWTempR21	%(LOCAL_BASE+0x40)
//#define	LWTempR22	%(LOCAL_BASE+0x44)
//#define	LWTempR23	%(LOCAL_BASE+0x48)
//#define	LWTempR24	%(LOCAL_BASE+0x4c)
//#define	LWTempR25	%(LOCAL_BASE+0x50)

/************************ pcm_dec ***************************************/

#ifdef EFFECT

#define local_IBUF_word                 0             //size=256 (overlaid with pcm out)
#define local_IBUF_byte                 0*4           //size=256

#define local_FApcm_buf_word            1024           //size=256
#define local_FApcm_buf_byte            1024*4          //size=256

#else //EFFECT

#define local_IBUF_word                 640             //size=192
#define local_IBUF_byte                 640*4           //size=192

#define local_FApcm_buf_word            1024            //size=768
#define local_FApcm_buf_byte            1024*4          //size=768

#endif //EFFECT