Objective:

To write a C program that calculates the average CPI, total processing time, and MIPS of a sequence of instructions, given the number of instruction classes, the CPI and total count of each instruction type, and the clock rate (frequency) of a particular machine.

Inputs:

Number of instruction classes (types)

CPI of each type of instruction

Total instruction count of each type of instruction

Clock rate of machine (MHz)

Output:

Table of parameters

Table of performance (Average CPI, CPU time (ms), MIPS)

Specification:

The program calculates the output based on choosing from a menu of choices, where each choice calls the appropriate procedure, where the choices are:

1) Enter parameters

2) Print table of parameters

3) Print table of performance

4) Quit

Notes:

Make sure all calculations are displayed truncated to 2 decimal fractional places, using the format "%.2f" in the printf statements.

Be sure that execution time is measured in milliseconds (msec).

To typecast an int x to a float y, use y = (float)x orsimply y = 1.0*x

To create proper spacing, use "\t" to tab.

Feel free to use the template "skeleton" code provided {beware: it might not compile correctly until modified appropriately}

#include
#include

/* NOTE: throughout the code, change the name of each procedure or function to something else in order to compile */

/* declare global var's */

//
/* define functions to calculate average cpi, cpu time, and mips */

float "FUNCTION TO CALCULATE AVERAGE CPI"()
{

/* declare local var's, calculate and return average cpi */

}

float "FUNCTION TO CALCULATE CPU TIME"()
{

/* declare local var's, calculate and return cpu time */

}

float "FUNCTION TO CALCULATE MIPS"()
{

/* declare local var's, calculate and return mips */

}

//
void "OPTION #1"()
{

/* declare local var's */

/* Prompt for number of instruction classes and frequency of machine */

/* allocate memory for dynamic arrays for cpi and instruction count */

/* for each instruction class, prompt for CPI and instruction count */
/* update total number of instructions and cycles */

}

//
void "OPTION #2"()
{

/* declare local var's */

/* print table of parameters inputed from OPTION #1, with each row containing the class number, the CPI of the class, and the instruction count of the class, following the sample output on the handout */

}

//
void "OPTION #3"()
{

/* declare local var's */

/* print table of calculations, including the average CPI, the CPU time, and the MIPS */

}

//
int main()
{

/* declare local var's */

/* until user chooses "4", loop */

/* print out menu list */

/* prompt for selection & choose appropriate procedure using either a case statement of if-else if-else statements */

}

Sample Input/Output

Performance assessment:



1) Enter parameters

2) Print table of parameters

3) Print table of performance

4) Quit

Enter selection: 1

Enter the number of instruction classes: 3

Enter the frequency of the machine (MHz): 200

Enter CPI of class 1: 2

Enter instruction count of class 1 (millions): 3

Enter CPI of class 2: 4

Enter instruction count of class 2 (millions): 5

Enter CPI of class 3: 6

Enter instruction count of class 3 (millions): 7

Performance assessment:



1) Enter parameters

2) Print table of parameters

3) Print table of performance

4) Quit

Enter selection: 2



|Class |CPI |Count |



|1 |2 |3 |



|2 |4 |5 |



|3 |6 |7 |



Performance assessment:



1) Enter parameters

2) Print table of parameters

3) Print table of performance

4) Quit

Enter selection: 3



|Performance |Value |



|Average CPI |4.53 |



|CPU Time (ms) |340.00 |



|MIPS |44.12 |



Performance assessment:



1) Enter parameters

2) Print table of parameters

3) Print table of performance

4) Quit

Enter selection: 4