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Following is the C code that was recovered for funcl: int funcl( int x, int y) { int t1 = func3( &x ); printf("t1 is: %d \n", t1); int t2 = func3( &y ); printf("t2 is: %d \n", t2); if ( t1 > t2 ) { return tl; } return t2; } And here is the assembly code for func3 Dump of assembler code for function func3: Ox0000000000400666 <+0>: Ox0000000000400667 <+1>: => 0x000000000040066a <+4>: Ox000000000040066e <+8>: Ox0000000000400672 <+12>: Ox0000000000400679 <+19>: θx000000000040067d <423> : Ox000000000040067f <+25>: push %rbp (%rsp),%rbp $0x20, %rsp %rdi,-0x18(%rbp) $0x1,-0x4(%rbp) -0x18, (%rbp),%rax (%rax),%eax $0x4, %eax Ox4006a7 # SETUP mov %23 sub %#3 mov %23 movl %23 mov mov %23 cmp jle Ox0000000000400682 <+28>: #3 Ox0000000000400684 <+30>: -0x18, (%rbp),%rax (%rax),%eax $0x2,%eax %eax,%edx -0x18(%rbp),%rax %edx,(%rax) -0x18(%rbp),%rax %rax, %rdi callq Ox400666 $0x1,%eax %eax,-0x4(%rbp) -0x4(%rbp),%eax mov #3 Ox0000000000400688 <+34>: Ox000000000040068a <+36>: Ox000000000040068d <+39>: Ox000000000040068f <+41>: Ox0000000000400693 <+45>: Ox0000000000400695 <+47>: mov #3 sar # mov mov %23 mov 23 mov #3 Ox0000000000400699 <+51>: mov #3 Ox000000000040069c <+54>: %23 Ox00000000004006a1 <+59>: add #3 Ox00000000004006a4 <+62>: Ox00000000004006a7 <+65>: Ox00000000004006aa <+68>: mov %23 mov %23 leaveq retq # CLEAN-Up Ox00000000004006ab <+69>: %#3 End of assembler dump. Q2) What is the halting condition for the recursive function func3? Assuming the fist parameter is called x.

Following is the C code that was recovered for funcl: int funcl( int x, int y) { int t1 = func3( &x ); printf("t1 is: %d \n", t1); int t2 = func3( &y ); printf("t2 is: %d \n", t2); if ( t1 > t2 ) { return tl; } return t2; } And here is the assembly code for func3 Dump of assembler code for function func3: Ox0000000000400666 <+0>: Ox0000000000400667 <+1>: => 0x000000000040066a <+4>: Ox000000000040066e <+8>: Ox0000000000400672 <+12>: Ox0000000000400679 <+19>: θx000000000040067d <423> : Ox000000000040067f <+25>: push %rbp (%rsp),%rbp $0x20, %rsp %rdi,-0x18(%rbp) $0x1,-0x4(%rbp) -0x18, (%rbp),%rax (%rax),%eax $0x4, %eax Ox4006a7 # SETUP mov %23 sub %#3 mov %23 movl %23 mov mov %23 cmp jle Ox0000000000400682 <+28>: #3 Ox0000000000400684 <+30>: -0x18, (%rbp),%rax (%rax),%eax $0x2,%eax %eax,%edx -0x18(%rbp),%rax %edx,(%rax) -0x18(%rbp),%rax %rax, %rdi callq Ox400666 $0x1,%eax %eax,-0x4(%rbp) -0x4(%rbp),%eax mov #3 Ox0000000000400688 <+34>: Ox000000000040068a <+36>: Ox000000000040068d <+39>: Ox000000000040068f <+41>: Ox0000000000400693 <+45>: Ox0000000000400695 <+47>: mov #3 sar # mov mov %23 mov 23 mov #3 Ox0000000000400699 <+51>: mov #3 Ox000000000040069c <+54>: %23 Ox00000000004006a1 <+59>: add #3 Ox00000000004006a4 <+62>: Ox00000000004006a7 <+65>: Ox00000000004006aa <+68>: mov %23 mov %23 leaveq retq # CLEAN-Up Ox00000000004006ab <+69>: %#3 End of assembler dump. Q2) What is the halting condition for the recursive function func3? Assuming the fist parameter is called x.

Database System Concepts
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
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Following is the C code that was recovered for func1: int funcl( int x, int y) { int t1 = func3( &x ); printf("t1 is: %d \n", tl); int t2 = func3( &y ); printf("t2 is: %d \n", t2); if ( t1 > t2 ) { return t1; return t2; And here is the assembly code for func3 Dump of assembler code for function func3: Ox0000000000400666 <+0>: push Ox0000000000400667 <+1>: => 0x000000000040066a <+4>; %rbp (%rsp),%rbp $0x20,%rsp %rdi,-0x18(%rbp) $0x1,-0x4(%rbp) -0x18, (%rbp), %rax (%rax),%eax $0x4,%eax Ox4006a7 <func3+65> # SETUP mov sub Ox000000000040066e <+8>: mov 23 Ox0000000000400672 <+12>: movl Ox0000000000400679 <+19>: mov Ox000000000040067d <+23>: Ox000000000040067f <+25>: θx0000000000400682 <+28>: Ox0000000000400684 <+30>: mov 23 cmp jle %23 %23 -0x18, (%rbp), %rax (%rax),%eax $0x2,%eax %eax,%edx -0x18(%rbp),%rax %edx,(%rax) -0x18(%rbp),%rax %rax,%rdi callq Ox400666 <func3> $0x1,%eax %eax,-0x4(%rbp) -0x4(%rbp),%eax mov %23 Ox0000000000400688 <+34>: Ox000000000040068a <+36>: Ox000000000040068d <+39>: Ox000000000040068f <+41>: mov %23 sar %23 mov %23 mov %23 Ox0000000000400693 <+45>: mov %23 θx0000000000400695<+47>: mov #: Ox0000000000400699 <+51>: mov #3 Ox000000000040069c <+54>: %23 Ox00000000004006al <+59>: add Ox00000000004006a4 <+62>: mov %23 Ox00000000004006a7 <+65>: mov #3 Ox00000000004006aa <+68>: leaveq retq # CLEAN-UP Ox00000000004006ab <+69>: End of assembler dump. %23 Q2) Assuming the fist parameter is called x. What is the halting condition for the recursive function func3? betta er allt dæmið i þessari spurningu Open original
Transcribed Image Text:Following is the C code that was recovered for func1: int funcl( int x, int y) { int t1 = func3( &x ); printf("t1 is: %d \n", tl); int t2 = func3( &y ); printf("t2 is: %d \n", t2); if ( t1 > t2 ) { return t1; return t2; And here is the assembly code for func3 Dump of assembler code for function func3: Ox0000000000400666 <+0>: push Ox0000000000400667 <+1>: => 0x000000000040066a <+4>; %rbp (%rsp),%rbp $0x20,%rsp %rdi,-0x18(%rbp) $0x1,-0x4(%rbp) -0x18, (%rbp), %rax (%rax),%eax $0x4,%eax Ox4006a7 <func3+65> # SETUP mov sub Ox000000000040066e <+8>: mov 23 Ox0000000000400672 <+12>: movl Ox0000000000400679 <+19>: mov Ox000000000040067d <+23>: Ox000000000040067f <+25>: θx0000000000400682 <+28>: Ox0000000000400684 <+30>: mov 23 cmp jle %23 %23 -0x18, (%rbp), %rax (%rax),%eax $0x2,%eax %eax,%edx -0x18(%rbp),%rax %edx,(%rax) -0x18(%rbp),%rax %rax,%rdi callq Ox400666 <func3> $0x1,%eax %eax,-0x4(%rbp) -0x4(%rbp),%eax mov %23 Ox0000000000400688 <+34>: Ox000000000040068a <+36>: Ox000000000040068d <+39>: Ox000000000040068f <+41>: mov %23 sar %23 mov %23 mov %23 Ox0000000000400693 <+45>: mov %23 θx0000000000400695<+47>: mov #: Ox0000000000400699 <+51>: mov #3 Ox000000000040069c <+54>: %23 Ox00000000004006al <+59>: add Ox00000000004006a4 <+62>: mov %23 Ox00000000004006a7 <+65>: mov #3 Ox00000000004006aa <+68>: leaveq retq # CLEAN-UP Ox00000000004006ab <+69>: End of assembler dump. %23 Q2) Assuming the fist parameter is called x. What is the halting condition for the recursive function func3? betta er allt dæmið i þessari spurningu Open original
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