Generate square wave from SOD pin

Statement: Write a program to output square wave of 1 kHz frequency on the SOD pinof 8085 for 5 seconds. Operating frequency of 8085 is 2 MHz.

Source program : LXI SP, 27FFH : Initialize stack pointer LXI B, 1388H : Initialize counter with count 5000. BACK: MVI A, COH SIM : Send high on SOD pin CALL DELAY : Wait for 0.5 msec MVI A, 40H : Send low on SOD pin CALL DELAY : wait for. 5 msec DCX B : Decrement count by 1 MOV A, C ORA B : Check if count = 0 JNZ BACK : If not, repeat HLT : Stop program execution Delay subroutine: Delay: LXI D, Count Back: DCX D MOV A, D ORA E JNZ Back RET