template(4,5) -> 9
template(0,127) -> 127
template(127,0) -> 127
template(127,127) -> 254
ERROR template.c:29: value1=128. setting to maxvalue of 127.  
template(128,0) -> 127
ERROR template.c:29: value2=128. setting to maxvalue of 127.
template(0,128) -> 127
ERROR template.c:29: value1=128. setting to maxvalue of 127.  value2=128. setting to maxvalue of 127.
template(128,128) -> 254
template(0,0) -> 0