$2.$Write the following operations in RTN:

a$.$ AddI X

b$.$ JnS X

$3.$Write the RTN and the control signals generated to carry out the following operations:

a$.$ Subt X :

b$.$ LoadI X: $1.$ What are the MARIE assembly instructions and machine code for the following program:

Subtract $10$ from $38,$ store the result into memory location $210.$

Then add $25$ to the result, store it into memory location $211.$

Assume $38$ is stored in memory location $150,10$ is stored in location $151,$ and $25$ is stored in $152.$ Write the program how it would be stored in memory, use one column for the address of the instruction, another for the assembly instruction, and a last column for the machine instruction.