Convert 1491 to binary, and to hexadecimal. (Hint:
binary to hex is easier than decimal to hex)
Here is a signed number. Is it negative? ______ Is it odd? ______
Take its 2's complement, then tell me what the original number is (in
decimal.)
0 x f f f f f e 7 d
Add these pairs of signed numbers, then convert the answers
to decimal. (Hint: should not be
very large numbers.)
0 x f e 5 7 4 3 5 f 0 x 7 8 9 5 b c 9 5 0 x 0 1 a 8 c 1 1 e0 x 8 7 6 a 4 2 3 a
(over)
Here is a machine instruction involving the 3 registers $t1, $t5,
$t7. Convert from hex to binary, then divide it into fields of
6,5,5,5,5, and 6 bits. Please locate the 3 registers in the
binary instruction.
0 x 0 1 a 9 7 8 2 2
Using the tables on page 61, try to determine what instruction it
is. Hint: consider the two
6-bit fields.
Again using page 61, convert this assembly instruction to binary,
and then hex. Hints: $t6 is the "destination," rt. 24 will be
represented as a 16-bit number.