QUESTION 8:
Say that register $s1 held the address of a struct like the above.
Fill in the blank so that register $t0 gets the value in the
pay field:
lw $t0,____(____) # load the pay
12 bytes, four bytes for each of three integers.
A block of memory for this struct consists of twelve bytes.
The first field (age) is located at a displacement of
zero into the block.
The second field (pay) is located at a displacement of
four into the block.
The last field (class) is located at a displacement of
eight into the block.
struct
{
int age;
int pay;
int class;
};
Warning: C and C++ compilers are free to rearrange the order of items inside a struct and to do other things for optimization or hardware compatibility. Worse yet, different compilers may do different things. Do not write C programs that make assumptions about the internal structure of a struct.
Say that register $s1 held the address of a struct like the above.
Fill in the blank so that register $t0 gets the value in the
pay field:
lw $t0,____(____) # load the pay