WAI        WAit for Interrupt
Category:  Interrupt control
Function:  PC <-- (PC) + 0001
           --> (PCL),  SP <-- (SP) - 0001
           --> (PCH),  SP <-- (SP) - 0001
           --> (IXL),  SP <-- (SP) - 0001
           --> (IXH),  SP <-- (SP) - 0001
           --> (ACCA), SP <-- (SP) - 0001
           --> (ACCN), SP <-- (SP) - 0001
           --> (CC),   SP <-- (SP) - 0001

Effects on the Condition Codes
H = N/A
I = 1 at interrupt
N = N/A
Z = N/A
V = N/A
C = N/A

ADDR    MNEM    OPER        1st     2nd     3rd
MODE    ONIC    FRMT        BYTE    BYTE    BYTE
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IMPL    WAI                 3E