Floating-Point Intel® FPGA IP User Guide

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ID 683750
Date 8/30/2024
Public
Document Table of Contents
Document Table of Contents x
1. About Floating-Point Intel® FPGA IP 2. Floating Point Custom Accumulator Intel® FPGA IP 3. Floating Point Functions IP 4. Floating-Point IP Cores User Guide Document Archives 5. Document Revision History for the Floating-Point Intel® FPGA IPUser Guide
1. About Floating-Point Intel® FPGA IP x
1.1. Installing and Licensing Intel® FPGA IP Cores 1.2. Design Flow 1.3. Upgrading IP Cores 1.4. Floating-Point IP Cores General Features 1.5. IEEE-754 Standard for Floating-Point Arithmetic 1.6. Non-IEEE-754 Standard Format 1.7. Floating-Points IP Cores Output Latency 1.8. VHDL Component Declaration 1.9. VHDL LIBRARY-USE Declaration
1.2. Design Flow x
1.2.1. IP Catalog and Parameter Editor 1.2.2. Specifying the IP Parameters and Options ( Quartus® Prime Pro Edition)
1.2.1. IP Catalog and Parameter Editor x
1.2.1.1. The Parameter Editor
1.2.2. Specifying the IP Parameters and Options ( Quartus® Prime Pro Edition) x
1.2.2.1. IP Core Generation Output ( Quartus® Prime Pro Edition)
1.3. Upgrading IP Cores x
1.3.1. Migrating IP Cores to a Different Device
1.5. IEEE-754 Standard for Floating-Point Arithmetic x
1.5.1. Floating-Point Formats 1.5.2. Special Case Numbers 1.5.3. Rounding
1.5.1. Floating-Point Formats x
1.5.1.1. Single-Precision Format 1.5.1.2. Double-Precision Format 1.5.1.3. Single-Extended Precision Format
2. Floating Point Custom Accumulator Intel® FPGA IP x
2.1. Floating Point Custom Accumulator Intel® FPGA IP Features 2.2. Floating Point Custom Accumulator Intel® FPGA IP Output Latency 2.3. Floating Point Custom Accumulator Intel® FPGA IP Signals 2.4. Floating Point Custom Accumulator Intel® FPGA IP Parameters
3. Floating Point Functions IP x
3.1. Floating Point Functions IP Features 3.2. Floating Point Functions IP Output Latency 3.3. Floating Point Functions IP Target Frequency 3.4. Floating Point Functions IP Combined Target 3.5. Floating Point Functions IP Reset and Latency 3.6. Floating Point Functions IP Signals 3.7. Floating-Point Functions IP Parameters
1. About Floating-Point Intel® FPGA IP
2. Floating Point Custom Accumulator Intel® FPGA IP
3. Floating Point Functions IP
4. Floating-Point IP Cores User Guide Document Archives
5. Document Revision History for the Floating-Point Intel® FPGA IPUser Guide

1.3. Upgrading IP Cores

Any Intel® FPGA IP variations that you generate from a previous version or different edition of the Quartus® Prime software, may require upgrade before compilation in the current software edition or version. The Project Navigator displays a banner indicating the IP upgrade status. Click Launch IP Upgrade Tool or Project > Upgrade IP Components to upgrade outdated IP cores.
Figure 6. IP Upgrade Alert in Project Navigator


Icons in the Upgrade IP Components dialog box indicate when IP upgrade is required, optional, or unsupported for an IP variation in the project. Upgrade IP variations that require upgrade before compilation in the current version of the Quartus® Prime software.

Note: Upgrading IP cores may append a unique identifier to the original IP core entity names, without similarly modifying the IP instance name. There is no requirement to update these entity references in any supporting Quartus® Prime file, such as the Quartus® Prime Settings File (.qsf), Synopsys* Design Constraints File (.sdc), or Signal Tap File (.stp), if these files contain instance names. The Quartus® Prime software reads only the instance name and ignores the entity name in paths that specify both names. Use only instance names in assignments.
Table 4.  IP Core Upgrade Status
IP Core Status Description
IP Upgraded

Indicates that your IP variation uses the latest version of the Intel® FPGA IP core.
IP Component Outdated

Indicates that your IP variation uses an outdated version of the IP core.
IP Upgrade Optional

Indicates that upgrade is optional for this IP variation in the current version of the Quartus® Prime software. You can upgrade this IP variation to take advantage of the latest development of this IP core. Alternatively, you can retain previous IP core characteristics by declining to upgrade. Refer to the Description for details about IP core version differences. If you do not upgrade the IP, the IP variation synthesis and simulation files are unchanged and you cannot modify parameters until upgrading.
IP Upgrade Required

Indicates that you must upgrade the IP variation before compiling in the current version of the Quartus® Prime software. Refer to the Description for details about IP core version differences.
IP Upgrade Unsupported

Indicates that upgrade of the IP variation is not supported in the current version of the Quartus® Prime software due to incompatibility with the current version of the Quartus® Prime software. The Quartus® Prime software prompts you to replace the unsupported IP core with a supported equivalent IP core from the IP Catalog. Refer to the Description for details about IP core version differences and links to Release Notes.
IP End of Life

Indicates that Intel designates the IP core as end-of-life status. You may or may not be able to edit the IP core in the parameter editor. Support for this IP core discontinues in future releases of the Quartus® Prime software.
IP Upgrade Mismatch Warning

Provides warning of non-critical IP core differences in migrating IP to another device family.
IP has incompatible subcores

 Indicates that the current version of the Quartus® Prime software does not support compilation of your IP variation, because the IP has incompatible subcores.
Compilation of IP Not Supported

Indicates that the current version of the Quartus® Prime software does not support compilation of your IP variation. This can occur if another edition of the Quartus® Prime software, such as the Quartus® Prime Standard Edition, generated this IP. Replace this IP component with a compatible component in the current edition.
Note: Beginning with the Quartus® Prime Pro Edition software version 19.1, IP upgrade supports migration of IP released within one year of the Quartus® Prime Pro Edition software version, as the following chart defines:
Figure 7.  Quartus® Prime Pro Edition IP Version Upgrade Paths


Follow these steps to upgrade IP cores:

  1. In the latest version of the Quartus® Prime software, open the Quartus® Prime project containing an outdated IP core variation. The Upgrade IP Components dialog box automatically displays the status of IP cores in your project, along with instructions for upgrading each core. To access this dialog box manually, click Project > Upgrade IP Components.
  2. To upgrade one or more IP cores that support automatic upgrade, ensure that you turn on the Auto Upgrade option for the IP cores, and click Auto Upgrade. The Status and Version columns update when upgrade is complete. Example designs that any Intel® FPGA IP core provides regenerate automatically whenever you upgrade an IP core.
  3. To manually upgrade an individual IP core, select the IP core and click Upgrade in Editor (or simply double-click the IP core name). The parameter editor opens, allowing you to adjust parameters and regenerate the latest version of the IP core.
    Figure 8. Upgrading IP Cores ( Quartus® Prime Pro Edition Example)


    Note: Intel® FPGA IP cores older than Quartus® Prime software version 12.0 do not support upgrade. Intel verifies that the current version of the Quartus® Prime software compiles the previous two versions of each IP core. The Intel® FPGA IP Core Release Notes reports any verification exceptions for Intel® FPGA IP cores. Intel does not verify compilation for IP cores older than the previous two releases.

Section Content
Migrating IP Cores to a Different Device

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