Write the C code that produces the assembly code: (gdb) x/8x 0x4005b8 0x4005b8:

Question

Write the C code that produces the assembly code:

(gdb) x/8x 0x4005b8 0x4005b8: 0x00000000004004e6 0x0000000000400516 0x4005c8: 0x00000000004004ed 0x0000000000400502 0x4005d8: 0x00000000004005160x0000000000400509 0x4005e8: 0x0000000000400516 0x000000000040050f Dump of assembler code for function main: push mov mov mov mov %rdX,-8x28 (%rbp) mov-0x18 (%rbp),%rax mov %rax,-0x8(%rbp) mov-0x20 (%rbp),%rax sub cmp %rbp %rsp,%rbp %rdi,-0x18(%rbp) %rsi,-9x20(%rbp) 0x00000000004004b6 : Ox00000000004004ce : $exd,%rax $0x7,%rax 0x00000000004004d6 : 0x00000000004004da

Explanation / Answer

long switch_prob(long x, long n)

{

long result = n;

switch(x){

case 60: result = n*8; break;

case 62: result = n*8; break;

case 63: result = n;

result >>= 0x3;

break;

case 64: result = n;

result <<= 0x4;

result -= n;

n = result;

n *= n;

result = n + 75;

break;

case 65: n *= n;

result = n + 75;

break;

default: result = n + 75;

}

return result;

}

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