void baz(int a, int * p){pushq %rbpmovq %rsp,%rbpsubq $16,%rspint c;c = a-*p;movl %ecx,16(%rbp)movq %rdx, 24(%rbp)movq 24(%rbp), %raxmovl (%rax),%eaxmovl 16(%rbp),%edxsubl %eax,%edxmovl %edx,%eaxmovl %eax,-4(%rbp)cmpl $0, -4(%rbp)je L2if (c){int d = c*2;movl -4(%rbp),%eaxaddl %eax,%eaxmovl %eax,-8(%rbp)*p -= d;movl 24(%rbp),%raxmovl (%rax),%eaxsubl -8(%rbp),%eaxmovl %eax,%edxmovq 24(%rbp), %raxmovl %edx, (%rax)jmp L4:}(continued on next page) else{int e = "p/2;L2:movq 24(%rbp),%raxmovl (%rax),%eaxmovl %eax, %edxshrl $31, %edxaddl %edx, %eaxsarl%eaxmovl %eax,-12(%rbp)*p += e-a;movl 24(%rbp),%raxmovl (%rax), %edxmovl -12(%rbp), %eaxsubl 16(%rbp),%eaxaddl%eax,%edxmovq 24(%rbp), %raxmovl %edx,(%rax)L4:addq $16, %rsppopq %rbpret}3. RegistersRewrite the preceding example using as many registers as is reasonable.If you use any callee save registers, remember to add the save code.

Start.Push the value of the base pointer onto the stack.Move the value of the stack pointer to the…

void baz(int a, int * p) { int c; c = a-*p; if (c) { int d = c*2; *p -= d; (continued on next page) pushq %rbp movq %rsp,%rbp subq $16,%rsp movl %ecx,16(%rbp) movq %rdx, 24(%rbp) movq 24(%rbp), %rax movl (%rax),%eax movl 16(%rbp),%edx subl %eax,%edx movl %edx,%eax movl %eax,-4(%rbp) cmpl $0, -4(%rbp) je L2 movl 4(%rbp),%eax addl %eax,%eax movl %eax,-8(%rbp) movl 24(%rbp),%rax movl (%rax),%eax -8(%rbp),%eax %eax,%edx movq 24(%rbp), %rax movl %edx, (%rax) jmp L4: subl movl

void baz(int a, int * p) { int c; c = a-p; if (c) { int d = c2; *p -= d; (continued on next page) pushq %rbp movq %rsp,%rbp subq $16,%rsp movl %ecx,16(%rbp) movq %rdx, 24(%rbp) movq 24(%rbp), %rax movl (%rax),%eax movl 16(%rbp),%edx subl %eax,%edx movl %edx,%eax movl %eax,-4(%rbp) cmpl $0, -4(%rbp) je L2 movl 4(%rbp),%eax addl %eax,%eax movl %eax,-8(%rbp) movl 24(%rbp),%rax movl (%rax),%eax -8(%rbp),%eax %eax,%edx movq 24(%rbp), %rax movl %edx, (%rax) jmp L4: subl movl

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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