>>434　楽勝ですが何か？
$ objdump -S /lib/crt0.o
/lib/crt0.o: file format pe-i386
Disassembly of section .text:
00000000 <_mainCRTStartup>:
0: 55 push %ebp
1: 89 e5 mov %esp,%ebp
3: 83 ec 08 sub $0x8,%esp
6: a1 00 00 00 00 mov 0x0,%eax
b: 85 c0 test %eax,%eax
d: 74 01 je 10 <_mainCRTStartup+0x10>
f: cc int3
10: d9 7d fe fnstcw 0xfffffffe(%ebp)
13: 66 8b 45 fe mov 0xfffffffe(%ebp),%ax
17: 25 c0 f0 ff ff and $0xfffff0c0,%eax
1c: 66 89 45 fe mov %ax,0xfffffffe(%ebp)
20: 66 8b 45 fe mov 0xfffffffe(%ebp),%ax
24: 0d 3f 03 00 00 or $0x33f,%eax
29: 66 89 45 fe mov %ax,0xfffffffe(%ebp)
2d: d9 6d fe fldcw 0xfffffffe(%ebp)
30: 83 ec 0c sub $0xc,%esp
33: 68 00 00 00 00 push $0x0
38: e8 00 00 00 00 call 3d <_mainCRTStartup+0x3d>
3d: c9 leave
3e: c3 ret
3f: 90 nop