The one-bit half adder's function? Total inputs and outputs? What logic gates did it use?

Can the expert draw a full adder gate?

What are some applications for the logic synthesis tool?

According to the procedure call standard for the ARM architecture, the arguments are passed in core registers (R0-R3) and on the stack. When calling a function add(10, 12, 31, 45), what is the value of the register R1? Assuming each integer has 32 bits. a. 10 b. 12 c. 31 d. 45