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fixed: a library for fixed-point arithmetic

Build Status Documentation

This is a fork of Go's fixed point library, optimized for FPGAs running on the Reconfigure.io platform.

It currently provides only Q26:6 and Q52:12 precision¹ types. If you need other precisions, open an issue or a pull request.

¹ See the Wikipedia page on the Q number format for information on this notation.

Using in your kernels

Reconfigure.io supports including vendor packages in your kernels. You can use your favorite Go dependency manager to add it to your kernel. We use glide for our code.

$ glide create --non-interactive
[INFO]  Generating a YAML configuration file and guessing the dependencies
[INFO]  Attempting to import from other package managers (use --skip-import to skip)
[INFO]  Scanning code to look for dependencies
[INFO]  Writing configuration file (glide.yaml)
[INFO]  You can now edit the glide.yaml file. Consider:
[INFO]  --> Using versions and ranges. See https://glide.sh/docs/versions/
[INFO]  --> Adding additional metadata. See https://glide.sh/docs/glide.yaml/
[INFO]  --> Running the config-wizard command to improve the versions in your configuration
$ glide get github.com/ReconfigureIO/fixed
[INFO]  Preparing to install 1 package.
[INFO]  Attempting to get package github.com/ReconfigureIO/fixed
[INFO]  --> Gathering release information for github.com/ReconfigureIO/fixed
[INFO]  --> Adding github.com/ReconfigureIO/fixed to your configuration
[INFO]  Downloading dependencies. Please wait...
[INFO]  --> Fetching updates for github.com/ReconfigureIO/fixed
[INFO]  Resolving imports
[INFO]  Downloading dependencies. Please wait...
[INFO]  Exporting resolved dependencies...
[INFO]  --> Exporting github.com/ReconfigureIO/fixed
[INFO]  Replacing existing vendor dependencies

You should now see it in your vendor directory.

$ tree vendor
vendor
└── github.com
    └── ReconfigureIO
        └── fixed
            ├── examples
            │   └── mult
            │       ├── cmd
            │       │   └── test-mult
            │       │       └── main.go
            │       └── main.go
            ├── fixed.go
            ├── LICENSE
            ├── Makefile
            └── README.md

Contributing

Pull requests & issues are enthusiastically accepted!

By participating in this project you agree to follow our Code of Conduct.

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A library for fixed-point arithmetic, optimized for FPGA targets.

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