Discussion in "8051 Discussion Forum" started by    xrxx    Apr 30, 2020.
Thu Apr 30 2020, 10:59 AM
Assume that you have to 2 BCD numbers in 2 registers/memory locations.
Write a subroutine to multiply these 2 numbers and put the result in a different register set/memory location. The maximum number can be 9801 (99*99=9801). So you need 2 bytes to store 4-BCD digits.
Execute your program in the simulator and get screenshots at several steps during the execution.
Put your code and screenhots in a zip file seperately and submit the zip file as name_surname_id_hw1.zip
SWAP is good instruction to switch lower and higher nibbles (4-bits) in A.
Repeat the steps we follow on the paper.

Guys, can u help me for this? pleaseeeee

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