摘要:
A data processing apparatus comprising a disk unit, a power supply unit, at least one printed circuit board, a heat-exhaust fan, and a box accommodating the disk unit, the power supply unit, the printed circuit board, the heat-exhaust fan. Both the depth and height of the box are larger than the width and has first and second side surfaces defined by the depth and height, bottom and top surfaces defined by the depth and width, and front and rear surfaces defined the height and width. The disk unit and the power supply unit are disposed adjacent to the first side surface. The printed circuit board is disposed adjacent to the second side surface. The disk unit is disposed on the front surface, and the power supply unit is disposed on the rear surface. The apparatus is supported by a first leg and a second leg. Cooling air is exhausted through the first leg which includes a cut-out which communicates with a hollow portion. The second leg includes two non-aligned ends which extend beyond the sides of the apparatus and allow two of the apparatuses to be placed side by side.
摘要:
A graphic system which includes a display device having a graphic display area which includes a plurality of display portions and a plurality of one-chip semiconductor integrated circuit devices. Each one-chip semiconductor integrated circuit includes memory for storing a plurality of pixel data, each pixel data includes a plurality of bits and color data, and a logic circuit for carrying out logic operation on a unit of one pixel data read out from the memory based on a function signal supplied to the one-chip semiconductor integrated circuit device. The function signal indicates a relation between the unit of one pixel data read out from the memory and pixel data output by the logic circuit. The invention further includes an external device for supplying the function signal to the one-chip semiconductor integrated circuit device. The logic circuits, of the plurality of one-chip semiconductor integrated circuit devices, each carry out the same logic operation in accordance with the function signal. Further the logic circuit of the one-chip semiconductor integrated circuit device outputs pixel data based on the logic operation carried out by the logic circuit so as to display the pixel data from the logic circuit on one of the display portions of the graphic display area of the display device.
摘要:
A memory circuit including memory elements on which the data read, write, and store operations can be arbitrarily performed, the memory elements having a dyadic/arithmetic operation function. utilizing presetting in a read/modify/write mode to be executed during a memory cycle and in an interval in which data from the memory elements and data from external devices exist, an operation is executed between the external data and the data in the memory elements and the operation result is stored during a write cycle, thereby achieving a higher-speed operation.
摘要:
A bit operation processor having a first address operation unit for updating the address of data in units of a byte or multiple bytes for performing operation in units of a byte or multiple bytes, a second address operation unit for updating the address of data in units of a bit or multiple bits, an address control means operating on the first address operation unit to advance the address in response to the result of address advancement by the second address operation unit, and means for fetching byte-wide data for operation as addressed by the first address operation unit, whereby operation between data of any number of bits at any positions in byte blocks is controlled simply and fast.
摘要:
In a draw processing apparatus for drawing a character, pattern or image; a segment element of a horizontal or vertical continuous run length, a coordinate of a start point of the segment and a direction coefficient of the segment are calculated, a boundary coordinate of a draw area in which a data is to be drawn is calculated in accordance with a position and a size of the draw area, a valid portion and an invalid portion of the segment are calculated for each segment element for the result first calculation result in accordance with the second calculation result, and the valid segment portion is drawn in accordance with the first calculation result.
摘要:
A device for displaying pixel data on a graphic display area of a display device. The graphic display area includes a plurality of display portions. The invention includes a memory for storing a plurality of pixel data, each pixel data includes a plurality of bits and color data, and a logic circuit for carrying out a logic operation on a combination of a unit of one pixel data read out from the memory and external data supplied to the device. The logic circuit outputs pixel data based on the logic operation so as to display the pixel data on one of the display portions of the graphic display area of the display device.
摘要:
A memory device formed on an IC chip includes dynamic random access memories for effecting data read and write operations, first and second data terminals for receiving data from an external side of the IC chip, and a controller having a first data input connected to the first data terminal to receive first data, a second input connected to receive second data read, a third data input connected to the second data terminal to receive a function mode signal, and operation unit for executing operations between the first data provided from the first data input and the second data provided from the second input. The operation unit includes a function setting unit responsive to the function mode signal for setting a function indicated by the function mode signal prior to receipt of the first data. The second data is read out of a selected part of the storage locations. The operation corresponding to the function set by the function setting unit is executed for the first and second data. The result of the execution is written into the selected part of the storage locations via the input of the dynamic random access memories during one memory cycle.
摘要:
A memory circuit including memory elements on which data read, write and store operations can be arbitrarily performed, the memory elements having a dyadic/arithmetic operation function. In a read/modify/write mode to be executed during a memory cycle and in an interval in which data from the memory elements and data from external devices exist, an operation is executed between external data and the data in the memory elements and the result of such operation is stored during a write cycle, thereby achieving a higher-speed operation.
摘要:
In a memory circuit having a memory device operative to read, write and hold data and an operation unit implementing computation between a first datum supplied externally and a second datum read out of the memory device, a selector for selecting one of operational function specification data preset externally and a selector for selecting one of bit write control data present externally are given with select control signals, so that a frame buffer memory operative in a read-modify-write mode can be used commonly.
摘要:
A memory circuit including memory elements on which data read, write and store operations can be arbitrarily performed, the memory elements having a dyadic/arithmetic operation function. In a read/modify/write mode to be executed during a memory cycle and in an interval in which data from the memory elements and data from external devices exist, an operation is executed between external data and the data in the memory elements and the result of such operation is stored during a write cycle, thereby achieving a higher-speed operation.