parrocchetto/dsPIC_DSC_G.726A_src/encoderInit_annex_40.s

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;------------------------------------------------------------------------------
;Encoder state members

/*typedef struct
{
	short	dq0;
	short	dq0_exp;
	short	dq1;		 ;Quantized difference signal with delays 5 * to 0 
  	short   dq1_exp;
	short   dq2;
	short   dq2_exp;
  	short   dq3;
	short   dq3_exp;
  	short   dq4;
	short   dq4_exp;
  	short   dq5;
	short   dq5_exp;
  	short   sr0;
	short	sr0_exp;
	short   sr1;	    ;Reconstructed signal with delays 0 and 1
	short   sr1_exp;
	short   a1r;
	short   a2r;	    ;Triggered 2nd order predictor coeffs.
  	short   b1r;		;Triggered 6nd order predictor coeffs
  	short   b2r;
  	short   b3r;
  	short   b4r;
  	short   b5r;
  	short   b6r;
  	short   yup;		;Fast quantizer scale factor;
	short   dmsp;		;Short term average of the F(I) sequence
  	short   dmlp;		;Long term average of the F(I) sequence
  	short   apr;		;Triggered unlimited speed control * parameter
  	short   tdr;		;Triggered tone detector 
  	short   pk0;
	short   pk1;	    ;sign of dq+sez with delays 0 and 1 
	long    ylp;		;Slow quantizer scale factor
	short	leak;

	short   rate;		;Modified by Adeptte
	short   slen;
	short 	*table;
	short (*quan_fptr)(short dln, short ds);

} G726_state;*/

;------------------------------------------------------------------------------


;------------------------------------------------------------------------------
;External Variables
;------------------------------------------------------------------------------	

        .extern _G726A_tab

		
;------------------------------------------------------------------------------
;Global Declarations:
;------------------------------------------------------------------------------
        .global _G726AEncoderInit

;------------------------------------------------------------------------------
;Code Section in Program Memory
;------------------------------------------------------------------------------ 
        .section libg726a, code

/******************************************************************************
*
*  Function Name:       G726_encoder_init
*
*  System:              RISC
*
*  Platform:            dsPIC33F
*  
*  Description:         Initializes the encoder state 
*                                            
*  Cycle Count:         96
*  
*  Input Parameters:    w0 - Pointer to encoder state
*                       w1 - Bit Rate
*
*  Output Parameters:   None
* 	  
*  History: 
*
*         Date    |        By         |   Remarks
*  ---------------+-------------------+----------------------------------		
*     Oct-21-2005  	Sharanabasava M.	    Created.
*	  Jan-4-2010  	Sankaralingam.M			Modified
******************************************************************************/ 	
.text
_G726AEncoderInit:
        mov     #32,w3
        mov     #544,w4
        mov     #1,w5
        mov     #34816,w6        
		mov		w2,[w0+70]			;slen      ;Adeptte 
		
	
        do      #7,DQSRINIT
        mov     w3,[w0++]
DQSRINIT:
        clr     [w0++]
        repeat  #7
        clr     [w0++]
        mov     w4,[w0++]
        repeat  #3
        clr     [w0++]
        mov     w5,[w0++]
        mov     w5,[w0++]
        clr     w7
        mov.d   w6,[w0++]
        mov     #8,w7
        mov     w7,[w0++]
		mov		w1,[w0]						;rate	;Adeptte
        
        
		add		w0,#4,w3					;Adeptte
        mov     #_G726A_tab,w4
       
		mov		w4,[w3++]
        add     w7,#1,[--w0]
        mov     #tblpage(_G726_quan_5),w4
        mov     w4,_TBLPAG
        mov     #tbloffset(_G726_quan_5),w4
        
		mov     w4,[w3]
                  
		return	


;--------End of All Code Sections ---------------------------------------------
.end                               ;End of program code in this file