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I am looking at the assembly language code of a switch statement. I understand how the code works and what the cases are. My question is how do I decide on the case names? Below is the assembly language code, which will be followed with my interpretation of it. I basically just need to use the jump table and fill in the case names. 1 8048420: push %ebp 2 8048421: mov %esp, $ebp 3 8048423: mov 0x8(%ebp), %eax // x 4 8048426: mov 0xc(%ebp), %edx // n 5 8048429: sub $0x32, %edx // so least value of case is 32 6 804842c: cmp $0x5, %edx // max value is 37 7 804842f: ja 8048448 <switch+0x28> // if >37, go to default 8 8048431: jmp *0x80485d0(, %edx, 4) //THIS RIGHT HERE ? 9 8048438: shl $0x2, %eax // CASE A 10 804843b: jmp 804844b <switch+0x2b> //break; 11 804843d: sar $0x2, %eax //CASE B 12 8048440: jmp 804844b <switch+0x2b> //break 13 8048442: lea (%eax, %eax, 2), %eax //CASE C 14 8048445: imul %eax, %eax 15 8048448: add $0xa, %eax //fall through to default 16 804844b: pop %ebp //return 17 804844c: ret The jump table that the gdb command creates: I am doing x/6w 0x80485d0 0x80485d0: 0x08048438 0x08048448 0x08048438 0x0804843d 0x80485e0: 0x08048442 0x08048445 My interpretation: int result = x; switch(n) { case __: x = x << 2; break; case __: x = x >> 2 break; case __: x = 4*x; x = x*x case __: //default x += 0xa return x; } I just don't understand how to look up the jump table and decide which values of n between 32 and 37 fit in which of the case blanks. Any help would be appreciated. Thank you.

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