WAIT            Wait                                 Flags: Not altered

WAIT

    WAIT suspends execution of CPU instructions until the BUSY# pin is
    inactive (high). The BUSY# pin is driven by the 80x87 numeric
    processor extension.

    Coding WAIT after an ESC instruction ensures that any unmasked
    floating-point exceptions the instruction may cause are handled
    before the processor has a chance to modify the instruction's
    results (80486).


    Opcode      Format
    9B          WAIT


    Length and timing
    Operands    Bytes   8088    186     286     386     486     Pentium
    -            1       4       6       3       6      1-3      1   NP