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MICROPROCESSOR INSTRUCTION REFERENCE->SEX

SEX    Signed Extend Accumulator B into Accumulator A

A <- &FF if b7 of B is set
A <- &00 if b7 of B is clear

Condition Code Register:

H  Not affected
N  Set if result Negative, else cleared
Z  Set if result Zero, else cleared
V  Not affected
C  Not affected

    

Addressing mode	No of cycles	No of bytes
Implied:	2	1