(a) Explain the following instructions : (i) LDAX B (ii) DAD B (iii)…
Previous year question for Microprocessor & Interfacing.
Question
(a) Explain the following instructions :
(i) LDAX B
(ii) DAD B
(iii) XRA M
(iv) PCHL
(v) RST 5
(b) Write a program to count from 0 to 20H with a delay of 100 ms between each count. After the count 20H, the counter should reset itself and repeat the sequence. User register pair DE as a delay register. Show the delay calculations.
- Year: 2018
- Subject: Microprocessor & Interfacing