暂无描述
您最多选择25个主题 主题必须以字母或数字开头,可以包含连字符 (-),并且长度不得超过35个字符

looping-race-nolock.s 246B

123456789101112131415
  1. # assumes %bx has loop count in it
  2. .main
  3. .top
  4. # critical section
  5. mov 2000, %ax # get the value at the address
  6. add $1, %ax # increment it
  7. mov %ax, 2000 # store it back
  8. # see if we're still looping
  9. sub $1, %bx
  10. test $0, %bx
  11. jgt .top
  12. halt