EXTEND(SP,17);</c>
<p>But then pushing a single scalar <c>PUSHs( sv_2mortal( ...) );</c> 

<p>And that scalar is an SvPV that points to a C-string: <c>newSVpv( (char*)array,(int)len )</c>

<p>If you want to push that string as 16 (no point in return the null in a searate scalar) individual unisgned values, you will need to loop over the string extracting the byte values, creating SvUV's from each one and then push each onto the stack. 

<p>Something like:<code>
EXTEND( SP, 16 );
for( i=0; i < 16; ++i ) 
    PUSHs( sv_2mortal( newSVuv( array[ i ] ) ) );