CODE EXECUTE
    DE POP,
    chkPS,
    lblexec @ JP,

CODE EXIT
PC ORG @ 0x0d + ! ( stable ABI JP )
    L 0 IX+ LDrIXY,
    H 1 IX+ LDrIXY,
    IX DECd, IX DECd,
    HL PUSH, IY POP, ( --> IP )
    JPNEXT,