www.pudn.com > LFYOS.zip > enter_fs.s

.global enter_file_system,copy_os_data 
 
copy_os_data: 
	movl $(0xc0001000),%edi 
	movl 0x04(%esp),%esi 
	movl $(0x1000),%ecx 
1: 
	movl %cs:(%esi),%eax 
	movl %eax,(%edi) 
	addl $(0x04),%esi 
	addl $(0x04),%edi 
	subl $(0x04),%ecx 
	jne 1b 
	ret 
 
enter_file_system: 
	movl $(0xc0000ffc),%esp 
	pushl %ebp 
	pushl %edi 
	pushl %esi 
	pushl %edx 
	pushl %ecx 
	pushl %ebx 
	pushl %eax 
	pushl %esp 
	call file_system_call_deal 
	popl %ebx 
	popl %ebx 
	popl %ebx 
	popl %ecx 
	popl %edx 
	popl %esi 
	popl %edi 
	popl %ebp 
 
	movl %eax,%ebx 
1: 
	movl $(0x03),%eax 
	int $(0x80) 
	movl $(0x00),%ebx 
	jmp 1b