sum.yo

深入理解计算机系统 的lab

  0x000:              | 	.pos 0
  0x000: 308400010000 | init:	irmovl Stack, %esp
  0x006: 308500010000 | 	irmovl Stack, %ebp
  0x00c: 702c000000   | 	jmp Main
                      | 
                      | # Sample linked list
  0x014:              | .align 4
  0x014:              | ele1:
  0x014: 0a000000     |          .long 0x00a
  0x018: 1c000000     |          .long ele2
  0x01c:              | ele2:
  0x01c: b0000000     |          .long 0x0b0
  0x020: 24000000     |          .long ele3
  0x024:              | ele3:
  0x024: 000c0000     |          .long 0xc00
  0x028: 00000000     |          .long 0
                      | 
  0x02c: 308004000000 | Main:	irmovl $4, %eax
  0x032: a008         | 	pushl %eax
  0x034: 308214000000 | 	irmovl ele1, %edx
  0x03a: a028         | 	pushl %edx
  0x03c: 8042000000   | 	call sum_list
  0x041: 10           | 	halt
                      | 
  0x042:              | sum_list:	
  0x042: a058         | 	pushl %ebp
  0x044: 2045         | 	rrmovl %esp, %ebp
  0x046: 501508000000 | 	mrmovl 8(%ebp), %ecx	#ecx=ls
  0x04c: 6300         | 	xorl %eax, %eax		#val=0
  0x04e:              | Loop:	
  0x04e: 6211         | 	andl %ecx, %ecx
  0x050: 7368000000   | 	je End
  0x055: 506100000000 | 	mrmovl (%ecx), %esi	#get* ls
  0x05b: 6060         | 	addl %esi, %eax		#add to val
                      | #	irmovl $4, %ebx		
                      | #	addl %ebx, %ecx		#ls--
  0x05d: 501104000000 | 	mrmovl 4(%ecx), %ecx	#ls=ls->next
  0x063: 704e000000   | 	jmp Loop
  0x068:              | End:
  0x068: b058         | 	popl %ebp
  0x06a: 90           | 	ret
  0x100:              | 	.pos 0x100
  0x100:              | Stack:
                      |