rsum.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:              | Main:
  0x02c: 308214000000 | 	irmovl ele1, %edx
  0x032: a028         | 	pushl %edx
  0x034: 803a000000   | 	call rsum_list
  0x039: 10           | 	halt
                      | 
  0x03a:              | rsum_list:
  0x03a: a058         | 	pushl %ebp
  0x03c: 2045         | 	rrmovl %esp, %ebp
  0x03e: a018         | 	pushl %ecx
  0x040: 501508000000 | 	mrmovl 8(%ebp), %ecx	#get* ls
  0x046: 6300         | 	xorl %eax, %eax		#val==0
  0x048: 6211         | 	andl %ecx, %ecx		#?ls==0
  0x04a: 7370000000   | 	je L39
                      | 	
  0x04f: 308204000000 | 	irmovl $4, %edx
  0x055: 2016         | 	rrmovl %ecx, %esi	
  0x057: 6026         | 	addl %edx, %esi
  0x059: 506600000000 | 	mrmovl (%esi), %esi
  0x05f: a068         | 	pushl %esi
  0x061: 803a000000   | 	call rsum_list
  0x066: b068         | 	popl %esi
  0x068: 502100000000 | 	mrmovl (%ecx), %edx
  0x06e: 6020         | 	addl %edx, %eax
  0x070:              | L39:	
                      | 	
  0x070: b018         | 	popl %ecx
  0x072: 2054         | 	rrmovl %ebp, %esp
  0x074: b058         | 	popl %ebp
  0x076: 90           | 	ret
                      | 
  0x100:              | 	.pos 0x100
  0x100:              | Stack: