Expand the example of section 10.2.3 to include an interrupt by a still more urgent device d while the service routine of device c is executing the instruction at x6310. assume device d’s interrupt vector is xf3. assume the interrupt service routine is stored in location x6400 to x6412. show the content of the stack when the service routine of device d is ready to run and the content of the stack when the execution just returns to the service routine of device c

Write a program that reads a file consisting of students’ test scores in the range 0–200. it should then determine the number of students having scores in each of the following ranges: 0–24, 25–49, 50–74, 75–99, 100–124, 125–149, 150–174, and 175–200. output the score ranges and the number of students. (run your program with the following input data: 76, 89, 150, 135, 200, 76, 12, 100, 150, 28, 178, 189, 167, 200, 175, 150, 87, 99, 129, 149, 176, 200, 87, 35, 157, 189.)