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gcc generates the following assembly code:

gcc generates the following assembly code:

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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gcc generates the following assembly code: long dw_loop(long x) x initially in %rdi dw_loop: movq %rdi, %rax movq %rdi, %rcx imulq %rdi, %rcx leaq (%rdi, %rdi), %rdx .L2 leaq 1(%rcx, %rах), %raх subq $1, %rdx testq %rdx, %rdx jg L2 ret 1) Which registers are used to hold program values x, y, z? 2) Add annotations to the assembly code
Transcribed Image Text:gcc generates the following assembly code: long dw_loop(long x) x initially in %rdi dw_loop: movq %rdi, %rax movq %rdi, %rcx imulq %rdi, %rcx leaq (%rdi, %rdi), %rdx .L2 leaq 1(%rcx, %rах), %raх subq $1, %rdx testq %rdx, %rdx jg L2 ret 1) Which registers are used to hold program values x, y, z? 2) Add annotations to the assembly code
For the C code int dw_loop(long x) { long y = x* x; long 'p - &x; long n - 2*x do { x += y; (*p)++; n--; } while (n > 0); return x; }
Transcribed Image Text:For the C code int dw_loop(long x) { long y = x* x; long 'p - &x; long n - 2*x do { x += y; (*p)++; n--; } while (n > 0); return x; }
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