Motorola DSP56800 Manual page 422

opt cc
move #coeffs,r3
move #image,r0
move #512,y1
move #-1029,r1
move #output,r2
move
move y1,n
push lc
push la
do y1,rows
push lc
push la
do y1,cols
mpy y0,x0,a
mac y0,x0,a
mac y0,x0,a
mac y0,x0,a
mac y0,x0,a
move r1,n
mac y0,x0,a
mac y0,x0,a
mac y0,x0,a
move #0,r3
move y1,n
macr y0,x0,a
move a,x:(r2)+
cols
pop la
pop lc
; adjust pointers for frame boundary
lea (r0)+
lea (r0)+
lea (r2)+
lea (r2)+
rows
B-18
x:(r0)+,y0 x:(r3)+,x0
x:(r0)+,y0 x:(r3)+,x0
x:(r0)+n,y0 x:(r3)+,x0
x:(r0)+,y0 x:(r3)+,x0
x:(r0)+,y0 x:(r3)+,x0
x:(r0)+n,y0 x:(r3)+,x0
x:(r0)+,y0 x:(r3)+,x0
x:(r0)+,y0 x:(r3)+,x0
x:(r0)+n,y0 x:(r3)+,x0
x:(r0)+,y0 x:(r3)+,x0
DSP56800 Family Manual
; 2 2 pt to coef.
; 2 2 top boundary
; 2 2
; 2 2
; 2 2 output image
; 1 1 y0=im(1,1 ),
x0=c11
; 1 1 row i to i+1
adjust
; 1 1
; 1 1
; 2 3
; 1 1
; 1 1
; 2 3
; 1 1 im(1,1)*c11
; 1 1 +im(1,2)*c12
; 1 1 +im(1,3)*c13
; 1 1 +im(2,1)*c21
; 1 1 +im(2,2)*c22
; 1 1 row i to i-2
adjust
; 1 1 +im(2,3)*c23
; 1 1 +im(3,1)*c31
; 1 1 +im(3,2)*c32
; 1 1 back to first
coeff
; 1 1 row i to i+1
adjust
; 1 1 +im(3,3)*c33
; 1 1
; 1 1
; 1 1
; 1 1 adjust r0
; 1 1
; 1 1 adjust r2
; 1 1