$1.$ Write a C function max$3$ that takes three numbers a$,$ b$,$ c and returns the maximum of the three

numbers.

a$.$ Use the gcc compiler to generate the assembly code.

b$.$ Use the gcc compiler to generate the object code.

c$.$ Use the objdump to decompile the object code. Redirect the output into a file.

Submit the C$,$ assembly, and the decompiled object code for the above program.

$2.$ Extend the program to include a main function to test the function.

a$.$ Use the gcc compiler to generate the assembly code.

b$.$ Use the gcc compiler to generate the object code.

c$.$ Use the objdump to decompile the object code. Redirect the output into a file.

Submit the C$,$ assembly, and the decompiled object code for the above program.

$3.$ Assume the following values are stored at the indicated memory addresses and registers:

Address Value Register Value

$0$x$2000$xFF $\%$rax $0$x$200$

$0$x$2040$xAA $\%$rcx $0$x$1$

$0$x$2080$x$11\%$rdx $0$x$3$

$0$x$20$C $0$x$13$

Fill in the following table showing the values for the indicated operands:

Operand Value

$\%$rax $\_\_\_\_\_\_\_$

$0$x$204\_\_\_\_\_\_\_$

$$0$x$208\_\_\_\_\_\_\_$

$(\%$rax$)\_\_\_\_\_\_\_$

$4(\%$rax$)\_\_\_\_\_\_\_$

$9(\%$rax,$\%$rdx$)\_\_\_\_\_\_\_$

$260(\%$rcx$,\%$rdx$)\_\_\_\_\_\_\_$

$0$xFC$(,\%$rcx$,4)\_\_\_\_\_\_\_$

$(\%$rax,$\%$rdx$,4)\_\_\_\_\_\_\_$

$4.$ You are given the following information. A function with prototype

int mystery$($int a$,$ int b$,$ int c$,$ int d$)$;

is compiled into assembly code. The body of the code is as follows:

leal $(\%$rdi,$\%$rsi,$2),\%$eax

leal $(\%$rdx$,\%$rdx$,2),\%$edx

addl $\%$edx, $\%$eax

leal $(\%$rax,$\%$rcx$,4),\%$eax

ret

Assume a at rdi, b at rsi, c at rdx$,$ d at rcx$,$ and the return value at eax.

Write the C code for mystery function that will have an effect equivalent to the assembly code

above.