$3$ Machine Code

Using LC$3$ Simulator, Write machine code $(0$s and $1$s$)$ programs that do the following. Make sure to comment logic of your program by using inline comments. You will be graded on comments. Start each program at $x3000.$

Write a machine code program that doubles the value in register, $R3.$ If $R3$ contains $6,$ it will be $12$ after running the program. We will load R$3$ with different values to test the program directly. Name the program, Double.bin

Write a machine code program that will subtract the contents of registers $R4$ and $R5.$ The result must be stored in memory at address $3072$ as well as register $R3.$ The contents of registers, R$4$ and R$5$ must not be changed as a result of the operation. R$4$ and R$5$ must be loaded using memory addresses, $x3070$ and x$3071.$ In other words,

$2$

your program should read from memory and write to memory using registers. We will test by loading data into the memory locations. Name the program, Subtract.bin