User's Manual

THE 80286 INSTRUCTION SET
HLT-Halt
Opcode Instruction Clocks Description
F4 HLT 2 Halt
FLAGS MODIFIED
None
FLAGS UNDEFINED
None
OPERATION
Successful execution of HL T causes the 80286 to cease executing instructions and to enter a HALT
state. Execution resumes only upon receipt of an enabled interrupt or a reset. If an interrupt is used to
resume program execution after
HL T, the saved CS:IP value will point to the instruction that follows
HLT.
PROTECTED MODE EXCEPTIONS
HLT is a privileged instruction. #GP(O) if the current privilege level is not O.
REAL ADDRESS MODE EXCEPTIONS
None
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