摘要 |
In order to improve the utilization of a memory in an electronic processor of a telephone exchange, serving for the temporary storage of one or more 4-bit groups (referred to as quartets) in zones of 16-bit capacity, a concentration unit in the input of a logic network and an expansion unit in the output thereof are controllable to switch incoming quartets from any group position to the position of the lowest-ranking group, or pair of groups, and to switch outgoing quartets from the lowest-ranking position, or pair of positions, to other group positions. The logic network is an arithmetic unit receiving the quartets from a data memory, or from a set of working registers serving for the storage of intermediate calculation results; the outgoing quartets are fed to the data memory, to the working registers, or to a buffer register connected to a control input of the arithmetic unit.
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