Login name _________________ Quiz 5 Name ______________________
CSE 131B
Signature ___________________ Winter 2003 Student ID __________________
1. Show the memory layout of the following local variables allocated on the runtime Stack taking into
consideration the SPARC data type memory alignment restrictions discussed in class. Fill bytes in memory
with the appropriate local variable name. For example, if local variable name p takes 4 bytes, you will have 4
p's in the appropriate memory locations. If the local variable is an array, use the name followed by the index
number. For example, some number of p0's, p1's, p2's, etc. Place an X in any bytes of padding.
char a; low memory
short b;
int c;
short d[3];
double e;
%fp โโโโโโโโโ> high memory
Write the SPARC assembly instructions that would be generated by the following instruction using the above
memory layout of the local variables. Make no assumptions about values already loaded into any registers. All
local variable accesses must access the local variable space allocated on the Stack. Just give a straightforward
suboptimal code generation to perform this operation. Hint: This should take 4 instructions.
c = 420420 + c;
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