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ALU flags
ALU Flags The ALU flags are a set of eight flags that are set or cleared by the ALU to indicate specific conditions or operations. These flags are used by t...
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ALU Flags The ALU flags are a set of eight flags that are set or cleared by the ALU to indicate specific conditions or operations. These flags are used by t...
ALU Flags
The ALU flags are a set of eight flags that are set or cleared by the ALU to indicate specific conditions or operations. These flags are used by the processor to control the execution of instructions and to perform parallel processing.
Flags:
Zero flag (ZF): Set when the ALU detects a zero operand.
Sign flag (SF): Set when the ALU detects a negative operand.
Overflow flag (OF): Set when the ALU detects an overflow condition.
Carry flag (CF): Set when a carry is generated from a previous operation.
Parity flag (PF): Set when the ALU detects an even or odd number of 1s in the operand.
Sign-magnitude flag (SM): Set when the operand is signed.
Equality flag (EQ): Set when the ALU compares two operands and determines them to be equal.
Logical OR flag (LO): Set when the ALU performs a logical OR operation on two operands.
Example:
If the ALU detects a zero operand, the ZF flag will be set. If the ALU detects a negative operand, the SF flag will be set. If the ALU encounters an overflow condition, the OF flag will be set