Boots – shoes – and leggings
Patent
1991-01-17
1992-06-16
Shaw, Gareth D.
Boots, shoes, and leggings
395425, 3642624, 3642628, 3642551, G06F 922
Patent
active
051230968
ABSTRACT:
A data processor which is so constructed that an operation code decoder decodes an operation code in an instruction to be processed comprising an operation code and an operand descriptor, and an addressing mode decoder decodes the operand descriptor, so that when the addressing mode of the operand is detected to be a specified addressing mode, for example, a register direct addressing mode, an entry address of microinstruction generated by the operation code decoder is modified, thereby enabling the entry address, different in microinstruction during the specified addressing mode and others, to be generated without increasing the number of product terms of a PLA in an instruction decoder.
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Kulik Paul
Shaw Gareth D.
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