Process control instructions in 8086 microprocessor

MicroprocessorMicrocontroller8086

These instructions are used to control the processor action by setting/resetting the flag values.

These are the process/processor control instructions.

Opcode
Operand
Description
STC
----
Used to set carry flag CY to 1
CLC
----
Used to clear/reset carry flag CY to 0
CMC
----
Used to put complement at the state of carry flag CY.
STD
----
Used to set the direction flag DF to 1
CLD
----
Used to clear/reset the direction flag DF to 0
STI
----
Used to set the interrupt enable flag to 1, i.e., enable INTR input.
CLI
----
Used to clear the interrupt enable flag to 0, i.e., disable INTR input.

 

 

raja
Published on 11-Mar-2019 15:57:27
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