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Problem 3.58 27 of 27 Part A For a function with prototype long decode2(long x, long y, long z) GCC generates the following assembly code
Problem 3.58 27 of 27 Part A For a function with prototype long decode2(long x, long y, long z) GCC generates the following assembly code Write C code for decode2 that will have an effect equivalent to the assembly code shown Drag the terms on the left to the appropriate blanks on the right. 1 decode2: 2 subq %rdx, %rsi 3 imulq%rsi, %rdi 4 movq%rsi, %rax 5 salq$63, %rax Rese sarq $63, %rax xorq %rdi, %rax t1 t1 t2 t2 + t1 t3 & t2 1 long decode2(long x, long y, long z) 8 ret 3 long t1- 4 long t2 5 long t3- 6 long t4- Parameters x, y, and z are passed in registers %rdi %rsi, and %rdx. The code stores the return value in register %rax. return t4 t4 -t3 (t1 >63 (t2 >> 63) 63) >> 63 9j
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