CS 2734 Computer Organization II

Laboratory 7

Laboratory 7 will meet in the Sun laboratory. Prior to the laboratory you must write the following program.

Create a separate directory and download the following programs:
Perform a make to be sure that you have downloaded the programs correctly.
Modify checkopcodes.c to do the following:
- If the number of command line arguments is incorrect, output a Usage message and exit.
- Use the command line argument as a filename. Open the file for reading.
- Read the file one line at a time until end-of-file using fgets.
- Echo the line to standard output and then process the line as follows:
  - Use strtok to peel off the tokens one at a time.
  - Output each token on a separate line along with whether or not it is an opcode. Your program should determine this by calling get_opcode with the appropriate arguments. If it is an opcode, output the op field in HEX.
Modify opcodes.c so that it performs as indicated in the documentation.

During laboratory checkoff a file will be made available for you to run your program. You must hand in copies of all source, your makefile, and your lint output. There should be no lint errors. You can test your program on the following sample program.