WAIT/FWAIT - Event Wait Usage: WAIT FWAIT Modifies flags: None CPU enters wait state until the coprocessor signals it has finished its operation. This instruction is used to prevent the CPU from accessing memory that may be temporarily in use by the coprocessor. WAIT and FWAIT are identical. Clocks Size Operands 808x 286 386 486 Bytes none 4 3 6+ 1-3 1
Back to Intel Instruction Set page.