Dump of assembler code for function phase_4: => 0x0000000000401040 : 0x0000000000401044 : 0x0000000000401049 : 0x000000000040104e :...

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Dump of assembler code for function phase_4: => 0x0000000000401040 <+0>: 0x0000000000401044 <+4>: 0x0000000000401049 <+9>: 0x000000000040104e <+14>: 0x0000000000401053 <+19>: 0x0000000000401058 <+24>: 0x000000000040105d <+29>: cmp 0x0000000000401060 <+32>: jne 0x0000000000401062 <+34>: 0x0000000000401067 <+39>: 0x0000000000401069 <+41>: callq 0x000000000040106e <+46>: 0x0000000000401073 <+51>: 0x0000000000401078 <+56>: 0xc (%rsp), %edi 0x000000000040107c <+60>: callq 0x40100e <func4> 0x0000000000401081 <+65>: cmp 0x0000000000401084 <+68>: jne $0xb,%eax 0x40108d <phase_4+77> 0x0000000000401086 <+70>: cmp1 $0xb, 0x8 (%rsp) 0x000000000040108b <+75>: je 0x401092 <phase_4+82> 0x000000000040108d <+77>: callq 0x40153e <explode_bomb> 0x0000000000401092 <+82>: add $0x18,%rsp 0x0000000000401096 <+86>: retq sub lea lea mov mov $0x0,%eax callq 0x400c30 <__isoc99_sscanf@plt> $0x2,%eax 0x401069 <phase_4+41> $0xe, 0xc (%rsp) cmpl jbe $0x18,%rsp 0x8 (%rsp), %rcx 0xc (%rsp), %rdx $0x402745,%esi mov mov mov 0x40106e <phase_4+46> 0x40153e <explode_bomb> $0xe,%edx $0x0,%esi Dump of assembler code for function func4: => 0x000000000040100e <+0>: 0x000000000040100f <+1>: 0x0000000000401011 <+3>: 0x0000000000401013 <+5>: 0x0000000000401015 <+7>: 0x0000000000401018 <+10>: 0x000000000040101a <+12>: 0x000000000040101c <+14>: 0x000000000040101e <+16>: cmp 0x0000000000401020 <+18>: jg 0x0000000000401022 <+20>: jl mov 0x0000000000401024 <+22>: 0x0000000000401026 <+24>: pop 0x0000000000401027 <+25>: retq 0x0000000000401028 <+26>: lea 0x000000000040102b <+29>: 0x0000000000401030 <+34>: 0x0000000000401032 <+36>: jmp 0x0000000000401034 <+38>: lea 0x0000000000401037 <+41>: callq add 0x000000000040103c <+46>: 0x000000000040103e <+48>: jmp push mov sub mov shr add sar add %rbx %edx, %eax %esi,%eax %eax,%ebx $0x1f,%ebx %eax,%ebx %ebx %esi,%ebx %edi,%ebx 0x401028 <func4+26> 0x401034 <func4+38> %ebx,%eax %rbx -0x1(%rbx),%edx callq 0x40100e <func4> add %eax,%ebx 0x401024 <func4+22> 0x1(%rbx),%esi 0x40100e <func4> %eax,%ebx 0x401024 <func4+22> Dump of assembler code for function phase_4: => 0x0000000000401040 <+0>: 0x0000000000401044 <+4>: 0x0000000000401049 <+9>: 0x000000000040104e <+14>: 0x0000000000401053 <+19>: 0x0000000000401058 <+24>: 0x000000000040105d <+29>: cmp 0x0000000000401060 <+32>: jne 0x0000000000401062 <+34>: 0x0000000000401067 <+39>: 0x0000000000401069 <+41>: callq 0x000000000040106e <+46>: 0x0000000000401073 <+51>: 0x0000000000401078 <+56>: 0xc (%rsp), %edi 0x000000000040107c <+60>: callq 0x40100e <func4> 0x0000000000401081 <+65>: cmp 0x0000000000401084 <+68>: jne $0xb,%eax 0x40108d <phase_4+77> 0x0000000000401086 <+70>: cmp1 $0xb, 0x8 (%rsp) 0x000000000040108b <+75>: je 0x401092 <phase_4+82> 0x000000000040108d <+77>: callq 0x40153e <explode_bomb> 0x0000000000401092 <+82>: add $0x18,%rsp 0x0000000000401096 <+86>: retq sub lea lea mov mov $0x0,%eax callq 0x400c30 <__isoc99_sscanf@plt> $0x2,%eax 0x401069 <phase_4+41> $0xe, 0xc (%rsp) cmpl jbe $0x18,%rsp 0x8 (%rsp), %rcx 0xc (%rsp), %rdx $0x402745,%esi mov mov mov 0x40106e <phase_4+46> 0x40153e <explode_bomb> $0xe,%edx $0x0,%esi Dump of assembler code for function func4: => 0x000000000040100e <+0>: 0x000000000040100f <+1>: 0x0000000000401011 <+3>: 0x0000000000401013 <+5>: 0x0000000000401015 <+7>: 0x0000000000401018 <+10>: 0x000000000040101a <+12>: 0x000000000040101c <+14>: 0x000000000040101e <+16>: cmp 0x0000000000401020 <+18>: jg 0x0000000000401022 <+20>: jl mov 0x0000000000401024 <+22>: 0x0000000000401026 <+24>: pop 0x0000000000401027 <+25>: retq 0x0000000000401028 <+26>: lea 0x000000000040102b <+29>: 0x0000000000401030 <+34>: 0x0000000000401032 <+36>: jmp 0x0000000000401034 <+38>: lea 0x0000000000401037 <+41>: callq add 0x000000000040103c <+46>: 0x000000000040103e <+48>: jmp push mov sub mov shr add sar add %rbx %edx, %eax %esi,%eax %eax,%ebx $0x1f,%ebx %eax,%ebx %ebx %esi,%ebx %edi,%ebx 0x401028 <func4+26> 0x401034 <func4+38> %ebx,%eax %rbx -0x1(%rbx),%edx callq 0x40100e <func4> add %eax,%ebx 0x401024 <func4+22> 0x1(%rbx),%esi 0x40100e <func4> %eax,%ebx 0x401024 <func4+22>

Answer rating: 100% (QA)

ANSWER The function phase4 takes two arguments stored in rcx and rdx respectively and performs the following operations 1 Subtracts 0x18 from rsp to a... View the full answer