摘要:
A mobile radio set includes: a first housing and a second housing including any of a transmitter circuit section, a receiver circuit section, and a radio circuit section; a flexible cable providing a connection between a circuit section of the first housing and a circuit section of the second housing; an antenna that is electrically connected to the radio circuit section, and located at the end of the second housing remote from the first housing; a bottom board cable providing a connection between bottom boards of the first housing and second housing; and a variable load that is inserted in series in the bottom board cable. This mobile radio set automatically adjusts phases of the antenna depending on service conditions of the radio set, thereby enabling to assure a stable communication.
摘要:
When a branch instruction is decoded by the instruction decoders 409a˜409c, the upper 29 bits of the PC relative value included in the branch instruction are sent to the upper PC calculator 411 and the lower 3 bits are sent to the lower PC calculator 405. The lower PC calculator 405 adds the lower 3 bits of the PC relative value and the lower 3 bits of the present lower PC 404 and sends the result to the lower PC 404 as the updated lower PC. The upper PC calculator 411 adds the upper 29 bits of the PC relative value, the upper 29 bits of the present upper PC 403, and a carry that may be received from the lower PC calculator 405, and sends the result to the upper PC 403 as the updated upper PC.
摘要:
The present invention provides a DMA transfer controller includes: a transfer parameter storing unit for storing a bus occupation time value and transfer parameters of one set or a plurality of sets of DMA transfers for each of a plurality of logical processors; a data transfer performing unit for performing the DMA transfer on the basis of the DMA transfer parameters; a control unit for controlling the receive and transmit of the DMA transfer parameters and the start and the interruption of the DMA transfers; and a time measuring unit for starting to measure bus occupation elapse time when a first DMA transfer is started for each of the logical processors. When the bus occupation elapse time reaches the bus occupation time value, the control unit interrupts the DMA transfer that is currently performed to start the DMA transfers based on the transfer parameters related to the logical processors of a prescribed sequence.
摘要:
In branch prediction in accordance with the present invention, in order to reduce the storage capacity for storing branch prediction information and simplify an information retrieval circuit while minimizing reduction in branch prediction accuracy, the position of an instruction is stored in advance and an instruction is decoded for execution, the relative position of the instruction decoded for execution is obtained on the basis of the position of the stored instruction, and when the decoded instruction is a branch instruction the result of branch by the branch instruction is recorded as history information in correspondence with the relative position of the branch instruction. After this, an instruction is pre-decoded before execution, the relative position of the pre-decoded instruction is obtained on the basis of the position of the stored instruction, when the pre-decoded instruction is a branch instruction the history information corresponding to the relative position of the pre-decoded branch instruction is referred to, and the result of the execution of the pre-decoded branch instruction is predicted by using the result of the reference to the history information.
摘要:
A processor can decode short instructions with a word length equal to one unit field and long instructions with a word length equal to two unit fields. An opcode of each kind of instruction is arranged into the first unit field assigned to the instruction. The number of instructions to be executed by the processor in parallel is s. When the ratio of short to long instructions is s-1:1, the s-1 short instructions are assigned to the first unit field to the s-1th unit field in the parallel execution code, and the long instruction is assigned to the sth unit field to the (s+k−1)th unit field in the same parallel execution code.
摘要:
A paper magazine core for rotatably supporting a roll of photosensitive material in a paper magazine includes an inner core divided into two inner core members that can be screwed together. The surface of each inner core member is provided with rows of screw holes formed at prescribed spacing conforming with the widths of rolls of photosensitive material of various types. Flange members are screw-fastened at the screw holes whose locations are appropriate for the size of the photosensitive material to be used. Each flange member is formed with an insert portion having multiple steps insertable into paper tubes of different sizes. Non-slip portions are formed around the insert portions and surfaces of the steps. Once the flange members have been fastened on the inner core members in a light room, a roll of photosensitive material can be installed on the core in a dark room merely by joining the inner core members.
摘要:
An instruction conversion apparatus and method for converting instruction sequences not including conditional instructions into instruction sequences including conditional instructions wherein the conditional instructions include both a condition and an operation code for execution by the processor when the condition is satisfied. An obtaining unit receives an instruction sequence that does not include a conditional instruction whereby an instruction sequence detection unit detects a conversion target instruction sequence which transfers different transfer objects to the same storage resource when a predetermined condition is satisfied. A judging unit judges whether the instruction set of a specialized processor is assigned a conditional instruction including the same condition as the precondition whereby a conversion unit can then convert the conversion target instruction sequence into the instruction sequence including a conditional instruction with the predetermined condition. While the judgment unit decision is negative, the conversion unit converts the conversion target instruction sequence into an instruction sequence including a conditional instruction with a condition that is mutually exclusive with the predetemiined condition.
摘要:
A processor includes a constant register 36 for storing a constant, a format decoder 21 for decoding a format code located in the P0.0 field of an instruction stored in the instruction register 10, and a constant register control unit 32 which, when the format decoder 21 has decoded that the instruction includes a constant to be stored in the constant register 36, shifts the presently stored value in the constant register 36 and stores the constant into the constant register 36.
摘要:
The present invention intends to provide an instruction prefetching apparatus capable of reducing a delay caused by branch prediction error by prefetching instruction based on a condition of a conditional branch instruction if the condition is already determined at the prefetching of the branch instruction. In the apparatus, a first decoding unit judges whether or not a processed instruction is a conditional branch instruction or not and whether or not the instruction is a condition generate instruction which determines branch condition. A condition determination signal generating means compares an address of a condition generate instruction with the content of a program counter to judge whether the condition is already determined or not, and according to the judgment, outputs a condition determination signal to a condition determination judging unit. In response to the signal input, the condition determination judging unit outputs prefetch address information for generating address to a prefetch address generating unit, using a condition code.
摘要:
A highly reliable electronic apparatus free from condensation in the cabinet of the apparatus. The electronic apparatus has printed circuit boards on which heat emitting semiconductor devices are mounted and a fan. The electronic apparatus further comprises a hygrometer for measuring the relative humidity and dew-point temperature of the cooling air that is introduced into the cabinet through an opening, a surface temperature sensor for sensing the temperature of the surface of the semiconductor devices, an internal temperature sensor for sensing the internal temperature of the semiconductor device, dehumidifier and heater means made up of a heat pump and an outdoor unit, and a controller for controlling the dehumidifier means and the heater means so that the relative humidity is less than 100% and the dew-point temperature is less than the surface temperature of the semiconductor devices.