; THRU.ASM
;
; Example code which takes input samples and outputs them unmodified.
; This works at stereo with a 48kHz sampling rate.
;
; After the macro WAITDATA is finished, samples are mapped in
; memory as follows:
;
;   ...     (R3)            (R3+1)         (R3+2)          (R3+3)       ...
;      ---------------- -------------- --------------- -----------------
;  Y: | XXXXXXXXXXXXXX | LEFT OUT (n) | RIGHT OUT (n) | XXXXXXXXXXXXXXX |
;      ---------------- -------------- --------------- -----------------
;  X: |  LEFT IN (n)   | RIGHT IN (n) | XXXXXXXXXXXXX | XXXXXXXXXXXXXXX |
;      ---------------- -------------- --------------- -----------------
;
; XXX's represent CODEC control information that must not be changed.
;

SAMPLERATE equ 48        
           nolist
           include 'core002.asm'
           list
n_taps     equ  3 ; number of  filter taps

        org     p:$100 



main
;       No  other initialization required here.

loop
        waitdata r3,buflen,1

        move    x:(r3)+,a               ; Input left sample
        
	move	a,x0			; move into x0

        ;
        ; Sample processing would be done here.
        ;

        move    a,y:(r3)+               ; Output left sample
        move    b,y:(r3)+               ; Output right sample
        move    (r3)+                   ; Must have four R3 increments

        jmp     loop                    ;