Microprogrammed control of extended integer instructions...

Details Microprogrammed control of extended integer instructions... Microprogrammed control of extended integer instructions...

G - Physics

06

F

354/230.81

G06F 9/26 (2006.01) G06F 9/28 (2006.01) G06F 9/318 (2006.01)

Patent

CA 1181865

ABSTRACT OF THE DISCLOSURE A data processing system includes a microprogram controlled central processing unit that executes instructions. The instruction words include a data type field for identifying the type of operand processed during the execution of the instruction. The data type field signals and a number of control signals are applied to the address terminals of a read only memory. The read only memory output signals are tested by microwords of a microprogram to branch to firmware routines to process the operand type.

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