[SOLVED] calculatoruse8051pleasehelpme

can you help me to write a program to plus and subtract 2 numbers with 2 digits use assembler.the numbers are imported by port P3.0 to P3.7 and P1.0 to p1.1,p1.2 used for plus,p1-3 used for subtract,p1.4 clear,p1.5 reset.
please help me and send the code via my email: hieutrungt2@yahoo.com.vn
thank you very much:grin::grin:

We are offcourse not doing it for you as this is your assignment . Please get this book with almost every topic expressed with elaborated examples . this book is very easy to follow.
this book is taught almost in every institution as a course text of " embeded systems with 8051 ".

"8051 microcontroller and embeded systems programming using assembly and c" by "ali mazeedi"