A method and apparatus for including in a processor instructions for performing logical-comparison and branch support operations on packed or unpacked data. The parent process creates a child process to execute the application. Further, pressure-receiving area may also be increased by providing a guide defining mounting direction of a syringe, alternatively, a positioning mechanism may be provided so as to obtain mounting at a correct position, or the surface of a flange may be roughened. A medium to be evaporated can flow through the heat exchanger during operation of the steam generator. Capacitance is selected from a capacitor network in order to adjust the single phase voltage spike so as to produce a predetermined voltage spike waveform having particular waveform characteristics that are required to perform survivability and compatibility tests. The bit holder holding portion is a forward portion, the forward portion being separate from but connected to the mounting base rear portion.