v4cacc48 acc; sbuff = upd_w (sbuff, 0, window_readincr_v8 (w_input)); sbuff = upd_w (sbuff, 1, window_readincr_v8 (w_input)); sbuff = upd_w (sbuff, 2, window_read_v8 (w_input) ); acc = mul4_sym ( sbuff , 0 , 0x3210 , 1 , 15 , coeffs, 0, 0x0000, 1 ); acc = mac4_sym (acc, sbuff , 4 , 0x3210 , 1 , 11 , coeffs, 4, 0x0000, 1 ); window_writeincr (w_output, srs (acc,SRS_SHIFT));