发明名称 |
Data processing device with instruction set extension |
摘要 |
<p>A certain target instruction and a prefix instruction for expanding the function of that target instruction are input to the present data processing circuit. The data processing circuit analyses the thus-input instruction code and performs the processing necessary for the execution of that instruction. The data processing circuit comprises an instruction decoder section, a register file, and an instruction execution section that executes the instruction based on operational details of the instruction analyzed by the instruction decoder section. The instruction decoder section comprises an ext instruction processing section that processed the expansion of immediate data from the prefix instruction. <IMAGE></p> |
申请公布号 |
EP0780760(A2) |
申请公布日期 |
1997.06.25 |
申请号 |
EP19960120615 |
申请日期 |
1996.12.20 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
KUBOTA, SATOSHI;KUDO, MAKOTO;MIYAYAMA, YOSHIYUKI |
分类号 |
G06F9/30;G06F9/305;G06F9/318;(IPC1-7):G06F9/318 |
主分类号 |
G06F9/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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