Zfa Extension
Versions
- 1.0.0
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- State
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ratified
- Ratification date
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== Synopsis
Zfa adds instructions for immediate loads, IEEE 754-2019 minimum and maximum operations, round-to-integer operations, and quiet floating-point comparisons. For RV32D, the Zfa extension also adds instructions to transfer double-precision floating-point values to and from integer registers, and for RV64Q, it adds analogous instructions for quad-precision floating-point values. The Zfa extension depends on the F extension.
Instructions
The following instructions are affected by this extension:
Floating-Point Convert Double-Precision to Word with Modulo |
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Floating-Point Less Than or Equal Quiet Double-Precision |
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Floating-Point Load Immediate Double-Precision |
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Floating-Point Less Than Quiet Double-Precision |
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Floating-Point Maximum-Number NaN Double-Precision |
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Floating-Point Minimum-Number NaN Double-Precision |
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Floating-Point Move High Half from Double-Precision Register to Integer Register |
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Floating-Point Move Pair from Integer Registers to Double-Precision Register |
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Floating-Point Round Double-Precision |
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Floating-Point Round-to-Integer Inexact Double-Precision |
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No synopsis available |
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No synopsis available |
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Floating-Point Less Than or Equal Quiet Quad-Precision |
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Floating-Point Load Immediate Quad-Precision |
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Floating-Point Less Than Quiet Quad-Precision |
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Floating-Point Maximum-Number NaN Quad-Precision |
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Floating-Point Minimum-Number NaN Quad-Precision |
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Floating-Point Move High Half to Integer from Quad-Precision |
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Floating-Point Move Pair from Integer Registers to Quad-Precision Register |
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Floating-Point Round Quad-Precision |
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Floating-Point Round-to-Integer Inexact Quad-Precision |
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No synopsis available |
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No synopsis available |
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No synopsis available |
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Floating-point round single-precision float to integer |
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Floating-point Round Single-precision to Integer with Inexact |
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No synopsis available |
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Floating-point Load Immediate Half-precision |
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No synopsis available |
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No synopsis available |
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No synopsis available |
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No synopsis available |
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No synopsis available |