help, convert matlab program to vhdl coding

hi,
i have matlab program for dwt.i don't know how to convert this into vhdl coding.if u have any idea please reply me.
-------------------------------------------------------------------
clear all;
x=input('Enter the input signal ');
lh=input('Enter the filter coeff ');
b=length(lh);
hh=[zeros(1,b)];
for i = 0 : b-1
hh(b-i)=lh(i+1);
if(mod((i+1),2) == 0)
hh(b-i)=(-1)*hh(b-i);
end;
end;
disp(hh);
ly=sampconv1(x,lh);
hy=sampconv1(x,hh);
subplot(3,2,1);plot(x);
subplot(3,2,2);plot(lh);
subplot(3,2,3);plot(hh);
subplot(3,2,4);plot(ly);
subplot(3,2,5);plot(hy);

function s = sampconv1(x,h)
a=length(x);
b=length(h);
N=a+b-1;
x=[x,zeros(1,N-a)];
h=[h,zeros(1,N-b)];
y=[zeros(1,N)];
s=[zeros(1,N/2)];
for i = 1:N
for k=1:i
y(i)=y(i)+x(k)*h(i-k+1);
end;
end;
for i=1N/2)
s(i)=y(2*i-1);
end;
disp;
disp(s);