摘要:
A data processing system comprising at least two operating systems (OS1, OS2) for virtual machines, a supervisory operating system, i.e., a control program (CP) for controlling the operating systems, control registers (CR0, CR1, ---) and an extended control register (ECR) having a special bit. When a control register operating instruction (LCTL or STCTL) is executed by one of the operating systems, the special bit has a first value and the operating system directly accesses the control register. When the other of the operating systems attempts to execute such a control register operating instruction, the special bit has a second value and an interruption is generated in the supervisory operating system.
摘要:
This invention relates to a register and more specifically to register control in a data processing system. In general, a number of control registers are theoretically required that is less than the maximum number which can be designated, and only the required number of registers are mounted as hardware. In order to add functions or to provide compatibility with other systems, it is sometimes required to use a register that is not mounted as hardware, or to use the registers mounted as hardware for conflicting purposes. Virtual registers are accordingly provided for at address locations in the memory of the processing system. However, if only the registers to be added are thusly provided for in the memory, the instructions must be executed by distinguishing between register access and memory access, in accordance with register number, etc. Thus, this invention provides a number of virtual registers for instance equal to the number that can be designated. The controls are thereby simplified in accordance with the kind of instruction to be performed. Namely, when an instruction is the LOAD instruction, the same content is loaded into both real an virtual registers from a respective address of the memory, and when it is the STORE instruction, the content from a respective virtual register is stored into the respective address of the memory.
摘要:
This invention relates to a timing control, for example, a control for reserving a waiting time when a data processor sends or receives data to or from an external device. Dummy cycles for a number of cycles having a processing time equal to the desired waiting time are generated by a dummy instruction. A timing control system is disclosed which is especially suitable for a micro-program system of a pipeline control system.
摘要:
A throttle valve opening control device for a watercraft engine includes a control section for controlling a valve drive section that drives the throttle valve based upon a signal from a remote controller operating position detecting means. The control section determines whether the operating position is in a trolling range or in a propelling range by the signal from the remote controller operating position detecting means. When the control section determines that the operating position is in the trolling range, the control section adjusts the throttle valve opening by an amount, relative to an operational amount of the remote controller, smaller than when the operating position is in the propelling range.
摘要:
A knocking control device for a watercraft engine includes a knocking learning value renewing section for changing a knocking learning value toward a low octane number ignition timing map when the knock sensor detects a knocking condition. The device changes the knocking learning value toward a high octane number ignition timing map when the knock sensor does not detect a knocking condition. An ignition timing determining section retards or advances an ignition timing based upon the knocking learning value given from the knocking learning value renewing section. The knocking learning value renewing section is constructed not to change the knocking learning value toward the high octane number ignition timing map, when an engine speed is in the vicinity of a full throttle condition.
摘要:
A knocking control device for a watercraft engine includes a knocking learning value renewing section for changing a knocking learning value toward a low octane number ignition timing map when the knock sensor detects a knocking condition. The device changes the knocking learning value toward a high octane number ignition timing map when the knock sensor does not detect a knocking condition. An ignition timing determining section retards or advances an ignition timing based upon the knocking learning value given from the knocking learning value renewing section. The knocking learning value renewing section is constructed not to change the knocking learning value toward the high octane number ignition timing map, when an engine speed is in the vicinity of a full throttle condition.
摘要:
A vehicle seat apparatus in which a seat is rotated around a rotational shaft to the rear of a vehicle in such a manner that a bottom surface of a seat cushion is made to face the inside of a passenger compartment so that the seat can be stowed in a recessed portion. The rotational shaft extends in a transverse direction along a front edge of the recessed portion to be fixed to a vehicle body at ends thereof. A seat cushion and a seat back of the seat are both divided into at least two in a widthwise direction. Respective seats so divided are rotatably supported on the rotational shaft individually.
摘要:
A personal watercraft includes a hull and an engine. The hull defines an engine compartment and the engine is disposed within the engine compartment. A waterproof electrical component container is disposed in the engine compartment. The container can include two internal compartments, one being more water-tight than the other. The container can also include an aperture defined in one of the external surfaces of the container, through which an electrical component inside the container can be accessed when the aperture is open.
摘要:
A power supply system for a boat includes a generator, a rectifier circuit, a main electric system arranged to supply electric power to a control system that controls the boat propulsion system, the main electric system including a main battery, and an auxiliary electric system arranged to supply electric power to auxiliary equipment provided on the boat, the auxiliary electric system including an auxiliary battery. An operation signal supplied to an actuating device connected to the main electric system is detected, and in a case where it is decided, based on the detected signal, to prioritize the main electric system over the auxiliary electric system, current supply to the auxiliary electric system is restricted, to thereby attain a stable operation of the control system of the boat.
摘要:
A seat cushion frame structure in an automotive seat, wherein the seat cushion frame is formed with forward and backward frame sections, and a U-shaped main frame section disposed between the two frame sections, such that the main frame section may be desirably positioned and welded at its both forward ends to the forward frame section, thereby permitting variation of length of seat cushion frame.