<p>A data processing system includes a memory subsystem for storing operands and instructions and a central processing unit (CPU) for manipulating the operands by executing the instructions. The CPU includes a control store for generating signals for controlling the CPU operation. Shifters made up of multiplexers shift operands between an outer bus and a write bus in response to control store signals. The multiplexers shift the operands left or right 1, 2 or 4-bit positions Including open shifts and circular shifts and also perform byte position shifting and twinning.</p>
申请公布号
EP0081336(A2)
申请公布日期
1983.06.15
申请号
EP19820306382
申请日期
1982.12.01
申请人
HONEYWELL INFORMATION SYSTEMS INC.
发明人
STANLEY, PHILIP E.;WOODS, WILLIAM E.;LEMAY, RICHARD A.;CUSHING, DAVID E.