Abstract:
Semiconductor memory devices include unit cells two-dimensionally arranged along rows and columns in one cell array block. The unit cells are classified into a plurality of cell subgroups, and each of the cell subgroups includes the unit cells constituting a plurality of the rows. Each of the unit cells includes a selection element and a data storage part. A word line is connected to gate electrodes of selection elements of the unit cells constituting each column. Bit lines are connected to data storage parts of the unit cells constituting the rows. A source line, parallel to the bit line, is electrically connected to source terminals of the selection elements of the unit cells in each cell subgroup. The source line is parallel to the bit line. A distance between the source line and the select bit line is equal to a distance between the bit lines adjacent to each other.
Abstract:
Systems and methods to accelerate compression and decompression with a search unit implemented in the processor core. According to an embodiment, a search unit may be implemented to perform compression or decompression on an input stream of data. The search unit may use a look-up table to identify appropriate compression or decompression symbols. The look-up table may be populated with a table derived using the variable length coding symbols of a sequence of vertices to be compressed or extracted from a received data stream to be decompressed. A comparator and a finite state machine may be implemented in the search unit to facilitate traversal of the look-up table.