Motorola DSP96002 - Manual (Page 553)

B-34 DSP96002 USER’S MANUAL MOTOROLA
Program ICycles
Words
move #k,r0 ;point to coefficients
move #2*N,m0 ;mod 2*(# of k’s)+1
move #state,r4 ;point to filter states
move #N,m4 ;mod on filter states
move p y:datin,d1 ;get input sample
move #2,n4 1 1
move x:(r0)+,d5.s y:(r4)-,d6.s 1 1
do #N,_elat 2 3
fmpy d5,d6,d0 fadd.s d0,d3 1 1
fadd.s d0,d1 d6.s,d3.s d3.s,y:(r4)+n4 1 1
fmpy.s d5,d1,d0 x:(r0)+,d5.s y:(r4)-,d6.s 1 1
_elat
fadd.s d0,d3 1 1
fclr d0 d3.s,y:(r4)+ 1 1
fclr d1 d1.s,y:(r4)+ 1 1
move y:(r4)+,d4.s 1 1
rep #N 1 2
fmpy d5,d4,d0 fadd.s d0,d1 x:(r0)+,d5.s y:(r4)+,d6.s 1 1
fadd.s d2,d3 (r4)+ 1 1
move p d3.s,y:datout ;output sample
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Totals: 14 4N+12