STA - Store Accumulator in Memory ;flags(N,Z)
STA opr ;(opr) <= A ;(DIR) 8 bit direct
STA opr ;(opr) <= A ;(EXT) 16 bit extended
STA ,X ;(X) <= A ;(IX) indexed no offset
STA opr,X ;(opr+X) <= A ;(IX1) indexed w/8 bit offset
STA opr,X ;(opr+X) <= A ;(IX2) indexed w/16 bit offset
The contents of the accumulator A remain unchanged.