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.global __syscall __syscall: pushl %ebx pushl %esi pushl %edi pushl %ebp movl 20(%esp),%eax movl 24(%esp),%ebx movl 28(%esp),%ecx movl 32(%esp),%edx movl 36(%esp),%esi movl 40(%esp),%edi movl 44(%esp),%ebp int $128 popl %ebp popl %edi popl %esi popl %ebx ret