explain briefly

Assembly code: Jns CheckInt / subroutine Checkint is called OUTPUT / print the number after subroutine is exited Halt / After this program halts CheckInt, HEX 000 / Used for storing return address 1 3 4 5 LO DO 10 13 CheckInt, HEX 000 / Used for storing return address INPUT / allows user to enter a value SKIPCOND 000/ checks if the value is less than 0 JUMPI CheckInt/ If not less than 0,then subroutine is exited JNS CheckInt/ If less than e, thenagain CheckInt subroutine / is called MARIE.js