             ;******* Opcode 0x24 
             ;The NOP0 instruction. 
FDB6  58     opcode24:RET0               
             ; 
             ;******* Opcode 0x25 
             ;The NOP1 instruction. 
FDB7  58     opcode25:RET0               
             ; 
             ;******* Opcode 0x26 
             ;The NOP2 instruction. 
FDB8  58     opcode26:RET0               
             ; 
             ;******* Opcode 0x27 
             ;The NOP3 instruction. 
FDB9  58     opcode27:RET0               
             ; 
             ;******* Opcode 0x28 
             ;The NOP instruction. 
FDBA  C00001 opcode28:LDA     0x0001,i   ;Assert i 
FDBD  E1FC53          STA     addrMask,d 
FDC0  16FCCA          CALL    assertAd   
FDC3  58              RET0               
