Processor having different operand source information temporaril

Details Processor having different operand source information temporaril Processor having different operand source information temporaril

1995-01-13

1995-09-19

Treat, William M.

Boots, shoes, and leggings

395800, 3649337, 364DIG2, G06F 9345

Patent

active

054524288

ABSTRACT:
An information processing apparatus executes a machine language instruction according to a microprogram controlling method. The apparatus comprises an instruction decoder for decoding the machine language instruction; an operand controller for receiving from the instruction decoder, information about operands that are necessary in executing the machine language instruction, and fetching and holding the operands according to the information; and an instruction executing device generating operand requests to the operand controller, obtaining the operands, and executing the machine language instruction under the control of a microprogram. Thus, the apparatus can execute a plurality of machine language instructions that respectively prescribe the same operation to be carried out on the different kinds of operands, under the control of a single microprogram irrespective of the differences of the kinds of the operands.

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Hidekazu Matsumoto et al., "A High-Performance Architecture for Variable Length Instructions", 8169 Systems and Computers in Japan, (1985) May-Jun. No. 3, Washington DC, USA, pp. 19-28.

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