Exercise aex$1$a: Use a sequence of two addi instructions to calculate the value of $11-6$ and

store the result in x$5.$ Save your solution as a file named aex$1$a$.$asm for possible future use.

Exercise aex$1$b: Use a sequence of addi instructions and a sub instruction to subtract $11$

from $6$ and store the result in x$5.$ Save your solution as a file named aex$1$b$.$asm for possible

future use.

Exercise aex$1$c: Calculate the expression $(1024-512)-(256-128)$ and store the result in x$5.$

Save your solution as a file named aex$1$c$.$asm for possible future use.