Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
LOCK Instruction
 ◄Summary► ◄Key►                              ◄Up► ◄Contents► ◄Index► ◄Back►
────────────────────────────────────────────────────────────────────────────
 
 11110000
─────────────────────┬─────────────────────────┬────────────────────────────
 LOCK  instruction   │ lock  xchg ax,sem       │ 88/86 2
                     │                         │   286 0
                     │                         │   386 0
                     │                         │   486 1
─────────────────────┴─────────────────────────┴────────────────────────────
                                    -♦-