我在反汇编这段代码时遇到了很大的困难。我了解该函数需要 3 个输入、1 个十进制和 2 个字符。我得出的结论是小数点是 7，尽管我不完全确定这是正确的。我知道我必须在某处使用跳转表，我相信它在 0x08048d50，我想再次验证和更正，但我不确定如何输入命令？
Dump of assembler code for function phase_3:
0x08048cfa <+0>: push %ebp
0x08048cfb <+1>: mov %esp,%ebp
0x08048cfd <+3>: sub $0x38,%esp
=> 0x08048d00 <+6>: movl $0x0,-0xc(%ebp)
0x08048d07 <+13>: lea -0x12(%ebp),%eax
0x08048d0a <+16>: mov %eax,0x10(%esp)
0x08048d0e <+20>: lea -0x13(%ebp),%eax
0x08048d11 <+23>: mov %eax,0xc(%esp)
0x08048d15 <+27>: lea -0x10(%ebp),%eax
0x08048d18 <+30>: mov %eax,0x8(%esp)
0x08048d1c <+34>: movl $0x804a7ff,0x4(%esp)
0x08048d24 <+42>: mov 0x8(%ebp),%eax
0x08048d27 <+45>: mov %eax,(%esp)
0x08048d2a <+48>: call 0x8048960 <__isoc99_sscanf@plt>
0x08048d2f <+53>: mov %eax,-0xc(%ebp)
0x08048d32 <+56>: cmpl $0x2,-0xc(%ebp)
0x08048d36 <+60>: jg 0x8048d3d <phase_3+67>
0x08048d38 <+62>: call 0x8049675 <explode_bomb>
0x08048d3d <+67>: mov -0x10(%ebp),%eax
0x08048d40 <+70>: cmp $0x7,%eax
0x08048d43 <+73>: ja 0x8048e56 <phase_3+348>
0x08048d49 <+79>: mov 0x804a808(,%eax,4),%eax
0x08048d50 <+86>: jmp *%eax
0x08048d52 <+88>: movb $0x6d,-0x11(%ebp)
0x08048d56 <+92>: movzbl -0x12(%ebp),%eax
0x08048d5a <+96>: movsbl %al,%eax
0x08048d5d <+99>: lea 0x20(%eax),%edx
0x08048d60 <+102>: movsbl -0x11(%ebp),%eax
0x08048d64 <+106>: cmp %eax,%edx
0x08048d66 <+108>: je 0x8048e61 <phase_3+359>
0x08048d6c <+114>: call 0x8049675 <explode_bomb>
0x08048d71 <+119>: jmp 0x8048e61 <phase_3+359>
0x08048d76 <+124>: movb $0x68,-0x11(%ebp)
0x08048d7a <+128>: movzbl -0x12(%ebp),%eax
0x08048d7e <+132>: movsbl %al,%eax
0x08048d81 <+135>: lea 0x20(%eax),%edx
0x08048d84 <+138>: movsbl -0x11(%ebp),%eax
---Type <return> to continue, or q <return> to quit---
0x08048d88 <+142>: cmp %eax,%edx
0x08048d8a <+144>: je 0x8048e64 <phase_3+362>
0x08048d90 <+150>: call 0x8049675 <explode_bomb>
0x08048d95 <+155>: jmp 0x8048e64 <phase_3+362>
0x08048d9a <+160>: movb $0x63,-0x11(%ebp)
0x08048d9e <+164>: movzbl -0x12(%ebp),%eax
0x08048da2 <+168>: movsbl %al,%eax
0x08048da5 <+171>: lea 0x20(%eax),%edx
0x08048da8 <+174>: movsbl -0x11(%ebp),%eax
0x08048dac <+178>: cmp %eax,%edx
0x08048dae <+180>: je 0x8048e67 <phase_3+365>
0x08048db4 <+186>: call 0x8049675 <explode_bomb>
0x08048db9 <+191>: jmp 0x8048e67 <phase_3+365>
0x08048dbe <+196>: movb $0x6f,-0x11(%ebp)
0x08048dc2 <+200>: movzbl -0x12(%ebp),%eax
0x08048dc6 <+204>: movsbl %al,%eax
0x08048dc9 <+207>: lea 0x20(%eax),%edx
0x08048dcc <+210>: movsbl -0x11(%ebp),%eax
0x08048dd0 <+214>: cmp %eax,%edx
0x08048dd2 <+216>: je 0x8048e6a <phase_3+368>
0x08048dd8 <+222>: call 0x8049675 <explode_bomb>
0x08048ddd <+227>: jmp 0x8048e6a <phase_3+368>
0x08048de2 <+232>: movb $0x6d,-0x11(%ebp)
0x08048de6 <+236>: movzbl -0x12(%ebp),%eax
0x08048dea <+240>: movsbl %al,%eax
0x08048ded <+243>: lea 0x20(%eax),%edx
0x08048df0 <+246>: movsbl -0x11(%ebp),%eax
0x08048df4 <+250>: cmp %eax,%edx
0x08048df6 <+252>: je 0x8048e6d <phase_3+371>
0x08048df8 <+254>: call 0x8049675 <explode_bomb>
0x08048dfd <+259>: jmp 0x8048e6d <phase_3+371>
0x08048dff <+261>: movb $0x76,-0x11(%ebp)
0x08048e03 <+265>: movzbl -0x12(%ebp),%eax
0x08048e07 <+269>: movsbl %al,%eax
0x08048e0a <+272>: lea 0x20(%eax),%edx
0x08048e0d <+275>: movsbl -0x11(%ebp),%eax
0x08048e11 <+279>: cmp %eax,%edx
0x08048e13 <+281>: je 0x8048e70 <phase_3+374>
---Type <return> to continue, or q <return> to quit---
0x08048e15 <+283>: call 0x8049675 <explode_bomb>
0x08048e1a <+288>: jmp 0x8048e70 <phase_3+374>
0x08048e1c <+290>: movb $0x70,-0x11(%ebp)
0x08048e20 <+294>: movzbl -0x12(%ebp),%eax
0x08048e24 <+298>: movsbl %al,%eax
0x08048e27 <+301>: lea 0x20(%eax),%edx
0x08048e2a <+304>: movsbl -0x11(%ebp),%eax
0x08048e2e <+308>: cmp %eax,%edx
0x08048e30 <+310>: je 0x8048e73 <phase_3+377>
0x08048e32 <+312>: call 0x8049675 <explode_bomb>
0x08048e37 <+317>: jmp 0x8048e73 <phase_3+377>
0x08048e39 <+319>: movb $0x6f,-0x11(%ebp)
0x08048e3d <+323>: movzbl -0x12(%ebp),%eax
0x08048e41 <+327>: movsbl %al,%eax
0x08048e44 <+330>: lea 0x20(%eax),%edx
0x08048e47 <+333>: movsbl -0x11(%ebp),%eax
0x08048e4b <+337>: cmp %eax,%edx
0x08048e4d <+339>: je 0x8048e76 <phase_3+380>
0x08048e4f <+341>: call 0x8049675 <explode_bomb>
0x08048e54 <+346>: jmp 0x8048e76 <phase_3+380>
0x08048e56 <+348>: movb $0x69,-0x11(%ebp)
0x08048e5a <+352>: call 0x8049675 <explode_bomb>
0x08048e5f <+357>: jmp 0x8048e77 <phase_3+381>
0x08048e61 <+359>: nop
0x08048e62 <+360>: jmp 0x8048e77 <phase_3+381>
0x08048e64 <+362>: nop
0x08048e65 <+363>: jmp 0x8048e77 <phase_3+381>
0x08048e67 <+365>: nop
0x08048e68 <+366>: jmp 0x8048e77 <phase_3+381>
0x08048e6a <+368>: nop
0x08048e6b <+369>: jmp 0x8048e77 <phase_3+381>
0x08048e6d <+371>: nop
0x08048e6e <+372>: jmp 0x8048e77 <phase_3+381>
0x08048e70 <+374>: nop
0x08048e71 <+375>: jmp 0x8048e77 <phase_3+381>
0x08048e73 <+377>: nop
0x08048e74 <+378>: jmp 0x8048e77 <phase_3+381>
0x08048e76 <+380>: nop