Final answer:
The question involves writing a program to subtract one hexadecimal number from another and store the result in RAM, which is a task suited to assembly language programming and understanding of hexadecimal arithmetic.
Step-by-step explanation:
The student is asked to write a program that performs a subtraction between two hexadecimal numbers and stores the result in RAM. This task requires knowledge of programming, assembly language, and understanding of hexadecimal arithmetic.
To subtract the hexadecimal number 197F9AH from 34BC48H, you would first convert the numbers to binary or decimal, perform the subtraction, and then convert back to hexadecimal if necessary. However, since this is likely to be an assembly language task, the subtraction would typically be handled directly by the CPU's ALU (Arithmetic Logic Unit), and the result would be stored in the specified RAM location starting at address 40H. The exact code to accomplish this would depend on the specific assembly language and system architecture being used.