Quiz2.fa07

SPARC Architecture, Assembly Language Programming, and C (2nd Edition)

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Signature _______________________ Name_________________ cs30x____ Student ID ______________________ Score: Quiz 2 CSE 30 Fall 2007 #1. a) Write the SPARC assembly instructions to define the following global variables in the data segment: char Heroes[] = "Hiro"; float air = 91.1; #2. What is the value ( in hex ) of %o1 after each set of instructions: a) set 0x9863131B, %o1 sra %o1, 12, %o1 Value in %o1 at this point is 0x ______________________________________________ b) set 0x9863131B, %o1 set 0x5A5A5A5A, %o2 xor %o1, %o2, %o1 Value in %o1 at this point is 0x ______________________________________________ c) set 0x9863131B, %o1 set 0x5A5A5A5A, %o2 and %o1, %o2, %o1 Value in %o1 at this point is 0x ______________________________________________ #3. Assume you run gdb on pa1. State how to set a breakpoint at the entry point in displaySquare():
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Unformatted text preview: Assume you correctly set this breakpoint and performed a run with correct command line arguments. State how to print the value of the 2 nd argument passed to displaySquare() in gdb: (over) #4. Write the equivalent unoptimized SPARC assembly language instructions to perform the following C code fragment. Use the loop construct specified in class/Notes. C SPARC assembly /* x is mapped to %l2 */ /* a is mapped to %l4 */ for ( x = 8765; x >= 723; --x ) { a = x - 321; } #5a. Write the equivalent unoptimized SPARC assembly language instructions to perform the following C code fragment. C SPARC assembly x = x % 7531; /* x is mapped to %l0 */ 5b. Now optimize your answer to eliminate any delay slots : Optimized version of above SPARC assembly...
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This homework help was uploaded on 02/11/2008 for the course CSE 30 taught by Professor Ord during the Winter '08 term at UCSD.

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Quiz2.fa07 - Assume you correctly set this breakpoint and...

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