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Process control instructions in 8086 microprocessor
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. |
Updated on: 2019-07-30T22:30:25+05:30
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