question: private static boolean is16BitRegister ( final String register ) { return register . equals ( "ax" ) || register . equals ( "bx" ) || register . equals ( "cx" ) || register . equals ( "dx" ) || register . equals ( "si" ) || register . equals ( "di" ) || register . equals ( "sp" ) || register . equals ( "bp" ) || register . equals ( "ip" ) ; }
target:  Determines whether a passed register is a 16 bit register (AX, BX, ...).