55xplltest.s55

dsp5509的pll2使用例程

;
;  Copyright 2002 by Texas Instruments Incorporated.
;  All rights reserved. Property of Texas Instruments Incorporated.
;  Restricted rights to use, duplicate or disclose this code are
;  granted through contract.
;  
;
; "@(#) DSP/BIOS 4.80.208 12-06-02 (barracuda-l19)"
        .mmregs

; Far-mode adjustment


        .asg    (2), ret_addr           ; stack description
                                        ; x in A
        .asg    (3 + offset), arg_n
                                        ; register usage
        .asg    ar0, ar_x

;****************************************************************
        .def    _asmtest
        .text

_asmtest


  ; Get arguments and set modes
; ---------------------------

        
        
extloop:

        NOP
        NOP
        mov     #99,brc0                        ; 1 cycle
        NOP
        NOP
        bset  xf                ; 1 cycle
    
    NOP
        NOP
        NOP
        NOP
        NOP


;       rptblocal       eloop1-1                ; (2)
    RPTB      eloop1 - 1 
        NOP
        NOP
        NOP
        NOP
        NOP                                             ; (500)
                        ; 
eloop1
        NOP
        NOP
        NOP
        NOP
        NOP
        bclr xf         ; 1 cycle
        mov     #99,brc0                        ; 2 cycles


      NOP                               ; 1 cycle
        NOP
        NOP
        NOP



;       rptblocal       eloop2-1        ;4 cycles
        RPTB     eloop2 - 1
        NOP
        NOP
        NOP
        NOP
        NOP
                        ; 
eloop2          ; (500)

           NOP
        NOP
        NOP
        NOP
        NOP
        nop
        b extloop ; 4 cycles



_end:
      ret                               ;                               (6)
        

;end of file. please do not remove. it is left here to ensure that no lines of code are removed by any editor