CPS 104 (Ramm)
                       Fall Semester 1995
                     Homework Assignment #7

Due Wednesday, Oct. 25

Write a C++ (or C) program that performs a service similar to
that of the previous assignment.  However, have the program print
out information for only a single word (4 bytes) and have your
program interpret the word as an Alpha instruction and have it
print out the appropriate instruction mnemonic.  Alphas are 64
bit word machines built by Digital Equipment Company.  A separate
table of op codes is being distributed.  Note that you need not
produce mnemonics for instructions that cannot be simply decoded
by looking at bit positions 31-26 and bit positions 11-5.  Since
the memory is little-endian, show the contents as both 32-bit
words and as bytes.

Sample output from you program might look like this:

please enter address: 400070

00400070 40640c05 05 . 0c . 64 . 40 .   addq

please enter address: 0

done

For your information: the instructions shown above were generated
by the
ADDQ R3, R4, R5
instruction.

Note: If you are not familiar with the use of and in C, you
should look them up.  They might make the C version of this
program easier to write.