摘要:
A bit sequence reversing device for reversing a sequence of data having a plurality of blocks, each block having a predetermined number of bits. The bit sequence reversing device includes a block reversing unit for reversing a sequence of at least two of the blocks; and a plurality of bit reversing units, each corresponding to one of the blocks, each of the bit reversing units reversing a sequence of the bits in the corresponding block. The block reversing unit includes a barrel shift unit. The barrel shift unit includes first and second input latch circuits for receiving the data; a series of left shift registers, connected to the first input circuit, for shifting the output of the first input latch circuit on the left direction, a series of right shift registers, connected to the second input circuit, for shifting the output of the second input latch circuit on the right direction; a first output control circuit, connected to a post-stage of one of the left shift registers, for selectively outputting data thereof; and a second output control circuit, connected to a post-stage of one of the right shift registers, for selectively outputting data thereof. The bit sequence reversing device reduces execution time without increasing the structural elements thereof, and since the reversing operation of blocks is adjusted, various types of reversing operations are possible.
摘要:
A material for shadow mask having the following composition of components: C≦0.0008 wt %, Si≦0.03 wt %, Mn:0.1 to 0.5 wt %, P≦0.02 wt %, S≦0.02 wt %, Al:0.01 to 0.07 wt %, N≦0.0030 wt %, B: an amount satisfying the formula: 5 ppm≦B−11/14×N≦30 ppm, balance: Fe and inevitable impurities; a method for producing the material; a shadow mask using the material (cold rolled steel sheet); and an image receiving tube equipped with the shadow mask. The material has excellent etching characteristics, which are uniform within the same coil, and excellent press formability.
摘要:
A memory control system has a replacement detection/notification circuit for detecting occurrence of replacement of dirty entry in a cache and informing a memory controller of the detection, and a state control circuit for precharging the currently active page in a main memory when the memory controller is informed of the detection and a preceding access to the main memory attendant upon the replacement of dirty entry is completed. By precharging the active page in the main memory to return to the idle state when the preceding access attendant upon the replacement of dirty entry is completed, the succeeding access can be done only by activating the aimed page probably different from the above page. It is thereby obviated to return the activated page due to the preceding access to the idle state after a page miss occurs in the succeeding access.
摘要:
An invar alloy steel sheet for shadow masks is provided which has improved etchability, an economical production method, a shadow mask made of the invar alloy steel sheet, and a color picture tube which incorporates the shadow mask. The invar alloy steel sheet is produced by hot working an alloy slab consisting of 33 top 40 wt % nickel with the balance being iron, and then subjecting the slab to a primary cold rolling at a rolling reduction ratio of not more than 80%, annealing at a temperature of at least 550° C., and subjecting the slab to a secondary cold rolling at a rolling reduction ratio of not more than 50%. The invar alloy steel sheet has a percentage of {100} texture of 60 to 80%.
摘要:
An information processing apparatus includes a decoder for decoding an instruction, a general purpose register part including a stack pointer and a plurality of general purpose registers, a special purpose register part including a plurality of special purpose registers, and a processing part coupled to the decoder, the general purpose register part and the special purpose register part for carrying out a predetermined process based on a decoded result from the decoder by selectively using a read out result of one of the general purpose register part and the special purpose register part. A decoding operation of the decoder, a read out operation of the general purpose register part and a read out operation of the special purpose register part are carried out in parallel.
摘要:
An information processing device reads, buffers, decodes and executes instructions from an instruction store portion by pipeline processing includes: an instruction reading request portion which assigns a read address to the instruction store portion, an instruction buffering portion which includes a plurality of instruction buffers which buffer an instruction sequence read from the instruction store portion; an instruction execution unit which decodes and executes instructions buffered by the instruction buffering portion. A branching instruction detection portion detects a branching instruction in the instruction sequence read from the instruction store portion. A branch target address information buffering portion includes a plurality of branch target address information buffers which, when the branching instruction detection portion has detected a branching instruction, buffer the branch target address information for generating the branch target address of the branching instruction.
摘要:
A memory control system has a replacement detection/notification circuit for detecting occurrence of replacement of dirty entry in a cache and informing a memory controller of the detection, and a state control circuit for precharging the currently active page in a main memory when the memory controller is informed of the detection and a preceding access to the main memory attendant upon the replacement of dirty entry is completed. By precharging the active page in the main memory to return to the idle state when the preceding access attendant upon the replacement of dirty entry is completed, the succeeding access can be done only by activating the aimed page probably different from the above page. It is thereby obviated to return the activated page due to the preceding access to the idle state after a page miss occurs in the succeeding access.
摘要:
A reciprocating compressor of a type includes a cylinder block having a plurality of bores disposed in parallel with each other, a valve plate having suction ports corresponding to the respective bores, a cylinder head for closing the outer end of the cylinder block through the valve plate which is held between the cylinder head and the cylinder block and on which suction valves and discharge valves are mounted, a suction chamber formed in the cylinder head adjacent to a refrigerant introduction port, and pistons inserted into the respective bores so as to reciprocate in a predetermined phase difference. In the reciprocating compressor, partitions are disposed in the cylinder head around the outer periphery of the suction chamber for introducing suction gas into the respective bores.
摘要:
A continuous annealing process for producing a soft tin plate and black plate with T - 21/2 or T - 3 tempering properties is attained in a conventional continuous annealing furnace for black plate by the use of a novel steel strip composition.
摘要:
A computer which performs parallel processing of a plurality of programs in a time-division fashion includes hardware resources divided into a plurality of areas, an evacuation unit which records identification information identifying a first program, and evacuates information stored in an area of said plurality of areas if the area is necessary for execution of a second program and is being used for execution of the first program, and a restoration unit which restores the evacuated information to the area based on the identification information when the second program comes to a halt or to an end.