( native words )
CODE EXECUTE
    DI POPx, JMPn, lblexec @ RPCn,
CODE >R
    BP INCx, BP INCx, [BP] 0 POP[w]+,
;CODE NOP, NOP, NOP,
CODE R>
    [BP] 0 PUSH[w]+, BP DECx, BP DECx,
;CODE
CODE 2R>
    [BP] -2 PUSH[w]+, [BP] 0 PUSH[w]+, BP 4 SUBxi,
;CODE
CODE ROT ( a b c -- b c a )
    CX POPx, BX POPx, AX POPx,
    BX PUSHx, CX PUSHx, AX PUSHx,
;CODE