Write an assembly program to define $4$ integers $-$ one each of length $1,2,4$ and $8$ bytes. Give two of these integers positive values and $2$ negative values. Define one of your positive numbers using hexadecimal notation.

Write instructions to load the four integers into $4$ registers using sign extension for shorter values.

Add the values and store the sum in a memory location.

Assemble and Link your source code.

Use gdb to single step through your program and inspect each register and memory locations as it is modified.