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8086 memory architecture , CPU레지스터 구조 , segment , buffer

정지홍 2024. 7. 30. 22:45







 


 



 


jeong@jeong-VirtualBox:~$ cat simple.asm
	.file	"simple.c"
	.text
	.globl	function
	.type	function, @function
function:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$48, %rsp
	movl	%edi, -36(%rbp)
	movl	%esi, -40(%rbp)
	movl	%edx, -44(%rbp)
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	nop
	movq	-8(%rbp), %rax
	subq	%fs:40, %rax
	je	.L2
	call	__stack_chk_fail@PLT
.L2:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.size	function, .-function
	.globl	main
	.type	main, @function
main:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movl	$3, %edx
	movl	$2, %esi
	movl	$1, %edi
	call	function
	nop
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE1:
	.size	main, .-main
	.ident	"GCC: (Ubuntu 13.2.0-23ubuntu4) 13.2.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4: