Types of Flags in 8086
Given Below is the diagram for the Types of Flags :
Flags in the 8086 processor are divided into two primary types:
Control Flags
- Direction Flag (DF): decides on the direction of string operations , it can vary from forwards to backwards.
- Trap Flag (TF): may help in debugging one instruction at a time by turning on single step mode.
- Interrupt Flag (IF): that can turn ON or OFF maskable interrupts.
Condition Flags
- Carry Flag(CF): shows whether there was a carry on the most important bit (MSB) during mathematics operations.
- Parity Flag (PF): shows the parity (even/odd) of the least significant byte of the result,
- Auxiliary carry flag (AF): Auxiliary carry flag indicates a carry between bits 3 and 4 during mathematics operations.
- Zeroflag (ZF): tells us whether or not our answer has been zeroed.
- Sign Flag (SF): Shows the outcome’s polarity. In this case, 1 means a negative return and 0 points to a positive return.
- Overflow Flag (OF): This bit is raised when the result of a signed operation goes beyond limits of the data type.
Types of Flags in 8086
In this article, we will be going through the definition of different flags in 8086. We will talk about the topic’s flag register, types of flags, working principles, construction, and applications of flags in 8086 after looking at their various types. We will also discuss its advantages and disadvantages along with some FAQs.
Table of Content
- Flag Register in 8086
- Types
- Working Principle
- Construction
- Advantages
- Disadvantages
- Applications