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Problem 0. Show that the assembly language translation of the function arith() on slide 19 of Lecture 6 returns the correct value by (a) giving
Problem 0. Show that the assembly language translation of the function arith() on slide 19 of Lecture 6 returns the correct value by (a) giving an expression for the value arith() returns, and (b) filling in the table below, showing the contents of each register in terms of x, y and z after each of the first six instructions is executed. The first row shows register contents before the first instruction. Remember that the sequence of assembly instructions may not correspond exactly to the C code, as the compiler may rearrange things to minimize the number of instructions and registers used. For your convenience, the assembly code is also given below. %rdx %rcx %rax arith: %rdi %rsi Z leaq addq leaq sala leaq imula ret C%rdi,%rsi), %rax %rdx, %rax (%rsi,%rsi, 2), %dx $4, %rdx 40%rdi, %rdx), %rcx %rcx, %rax Problem 0. Show that the assembly language translation of the function arith() on slide 19 of Lecture 6 returns the correct value by (a) giving an expression for the value arith() returns, and (b) filling in the table below, showing the contents of each register in terms of x, y and z after each of the first six instructions is executed. The first row shows register contents before the first instruction. Remember that the sequence of assembly instructions may not correspond exactly to the C code, as the compiler may rearrange things to minimize the number of instructions and registers used. For your convenience, the assembly code is also given below. %rdx %rcx %rax arith: %rdi %rsi Z leaq addq leaq sala leaq imula ret C%rdi,%rsi), %rax %rdx, %rax (%rsi,%rsi, 2), %dx $4, %rdx 40%rdi, %rdx), %rcx %rcx, %rax
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