Invention Grant
- Patent Title: Conditional move instruction formed into one decoded instruction to be graduated and another decoded instruction to be invalidated
- Patent Title (中): 条件移动指令形成一个待分级的解码指令,另一个解码指令被无效
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Application No.: US11640491Application Date: 2006-12-18
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Publication No.: US08078846B2Publication Date: 2011-12-13
- Inventor: Karagada Ramarao Kishore , Xing Yu Jiang , Vidya Rajagopalan , Maria Ukanwa
- Applicant: Karagada Ramarao Kishore , Xing Yu Jiang , Vidya Rajagopalan , Maria Ukanwa
- Applicant Address: US CA Sunnyvale
- Assignee: MIPS Technologies, Inc.
- Current Assignee: MIPS Technologies, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: G06F9/30
- IPC: G06F9/30

Abstract:
A conditional move instruction implemented in a processor by forming and processing two decoded instructions, and applications thereof. In an embodiment, the conditional move instruction specifies a first source operand, a second source operand, and a third operand that is both a source and a destination. If the value of the second operand is not equal to a specified value, the first decoded instruction moves the third operand to a completion buffer register. If the value of the second operand is equal to the specified value, the second decoded instruction moves the value of the first operand to the completion buffer. When the decoded instruction that performed the move graduates, the contents of the completion buffer register is transferred to a register file register specified by the third operand.
Public/Granted literature
- US20080082795A1 Twice issued conditional move instruction, and applications thereof Public/Granted day:2008-04-03
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