0 votes 0 votes A sequence of two instructions that multiplies the contents of the DE register pair by 2 and stores the result in the HL register pair (in 8085 assembly language) is: XCHG and DAD B XTHL and DAD H PCHL and DAD D XCHG and DAD H CO and Architecture gate1995 co-and-architecture 8085-microprocessor out-of-gate-syllabus + – Kathleen asked Oct 8, 2014 recategorized Apr 25, 2021 by Lakshman Bhaiya Kathleen 3.7k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
–3 votes –3 votes ans b) Aditi Dan answered Dec 25, 2014 Aditi Dan comment Share Follow See all 2 Comments See all 2 2 Comments reply suraj commented Dec 26, 2014 reply Follow Share XTHL instruction exchanges content of top of stack with the HL register pair. But in question, there is nothing related to top of stack. Correct answer would be D. XCHG (exchange content of DE with HL register pair) DAD H ( add content of HL with HL register pair and store the result back in HL register pair) 1 votes 1 votes jayendra commented Dec 27, 2014 reply Follow Share ans is D 0 votes 0 votes Please log in or register to add a comment.