[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'System' (#rtl)

ReadBarrier

Memory Read Barrier

Declaration

Source position: systemh.inc line 542

procedure ReadBarrier;

Description

ReadBarrier is a low-level instruction to force a read barrier in the CPU: all memory reads before the instruction will be finished before this instruction, before memory reads after the instruction occur.

See also

ReadDependencyBarrier

  

Memory Read Dependency Barrier

ReadWriteBarrier

  

Memory read/write barrier

WriteBarrier

  

Memory write barrier

The latest version of this document can be found at lazarus-ccr.sourceforge.net.