Abstract:
The data processor for executing, instructions realized by wired logic, by a pipeline system, includes a plurality of instruction registers, and arithmetic operation units of the same number. A plurality of instructions read in the instruction registers in one machine cycle at a time are processed in parallel by the plurality of arithmetic operation units.
Abstract:
A data processor which includes a first processor for executing a first instruction set and a second processor for executing a second instruction set different from the first instruction set. When the first processor executes a predetermined instruction of the first instruction set the second processor executes an instruction of the second instructions set. The first processor may be a reduced instruction set computer (RISC) type processor, the second processor may be a very long instruction word (VLIW) type processor, the first instruction set may be a RISC instruction set and the second instruction set may be a VLIW instruction set. The predetermined instruction of the RISC instruction set executed by the first processor may be a branch instruction causing a branch to a specific address space at which VLIW instructions are stored. Thereafter, the VLIW instructions at the specific address space are executed by the VLIW type processor.
Abstract:
A graphic pattern processing apparatus having a display memory, a data processor, a graphic processor, and a plurality of parallel to serial convertors. The display memory stores graphic data in words, each word has a plurality of pixel data and each pixel data has a plurality of bits. A graphic processor accesses the display memory and processes a plurality of the pixel data in response to instructions received from a data processor. The number of parallel to serial convertors corresponds to the number of bits per pixel and are configured to allow a word from the display memory to be converted into a serial stream of pixel data.
Abstract:
An information processing system having an original clock oscillator for delivering at least one original clock signal K defined as a first clock signal and a plurality of information processing units supplied with the original clock signal K, wherein each information processing unit comprises clock generating means for generating at least one second clock signal K.sub.1 which is phase-locked with the original clock signal K and which has a predetermined duty cycle and a logic device whose operation timing is controlled by the second clock signal K.sub.1, and the operation timing of an interface provided between at least one pair of logic devices is synchronously controlled by the clock signal K.sub.1.
Abstract:
An interpolation device for a scale arrangement receives sine wave and cosine wave signals indicative of a measuring data from the scale arrangement and calculates a DC offset value, an amplitude coefficient and an amount of a phase drift on the basis of the received signals. The interpolation device outputs a correct angle signal upon removing a DC offset, a gain level error, a gain unbalance and a phase drift from received signals. Therefore, the interpolation device realizes a mechanical structure of the scale arrangement to be simple.
Abstract:
An apparatus for detecting a relative displacement between a scale and a head is disclosed in which an equilibrium modulated signal derived from at least one detecting head is processed and converted into a DC voltage signal, a level of the DC voltage signal indicating the relative displacement of the scale to the head. At least one sample-and-hold circuit (its sampling time is synchronized with a reference signal, i.e., an excitation signal supplied to the head) or peak/hold circuit and low-pass filter (smoother) is used to provide the DC voltage signal.
Abstract:
An intra-LSI clock distribution circuit which includes a main distribution circuit, a plurality of intra-block clock distribution circuitries, feedback wires provided in association with each of blocks and each connected to one of plural block-based clock signal wires within the associated block and the intra-block distribution circuitry of the associated block for feeding back the intra-block clock signal distributed to a given one of circuit elements connected to the intra-block clock signal wires to the intra-block clock distribution circuitry of that block. The intra-block clock distribution circuitry in each of the blocks responds to the block-destined clock signal supplied to the associated block via one of the block-based clock signal wires connected thereto and the intra-block clock signals fed back via the feedback wires in the associated block to thereby generate a plurality of intra-block clock signals having respective phases which depend on differences in phase between the block-destined clock signal and the fed-back intra-block clock signals.
Abstract:
A graphic data generating apparatus includes an output producing a graphic image having a plurality of bits; a display memory connected to the output for storing pixel data defining the graphic data for each of the pixel data having a plurality of bits; and a graphic data processing apparatus performing read out of word data having a plurality of pixel data at a word position of the display memory specified by a source memory address, selecting pixel data specified by a source pixel address in the readout word and writing the selected pixel data in the display memory at a pixel position specified by a destination pixel address of word data specified by the destination memory address.
Abstract:
An instruction is constituted by a plurality of words, minimum necessary information necessary for effective address calculation of an operand is stored in a leading word and a word or words containing an operation specification field (operation words) are arranged to continue the first word. According to this system, the operation word can be decoded concurrently with the address calculation of the operand or the operand fetch operation. Therefore, there is no need to secure a time exclusively for decoding the operation word and the execution speed of the instruction requiring the operand can be improved.
Abstract:
Herein disclosed is a graphic processing apparatus which uses a CRT of raster scanning type. The graphic processing apparatus has functions to compare and judge whether or not within the range of a predetermined region thereby to effect the drawing operation, to compare drawing picture element data and other data in the drawing operation thereby to arithmetically control the drawing picture element data in accordance with the compared result, and to drawing a pattern of an arbitrary size on the basis of a fundamental unit of line and design patterns in the drawing operation.