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OSVVM Utility Library (aka OSVVM) Change Log

Revision Summary
2024.09 New RandomPkg2019. Updated to ScoreboardGenericPkg
2024.07 Major due to moving CreateClock/CreateReset and CreateClock interface changes
2024.05 Minor updates to parameter handling in RandomPkg and NameStorePkg.
2024.03 Updated OsvvmSettingsPkg. Added OsvvmScriptSettingsPkg.
Updates to configure AlertLogPkg, CoveragePkg, RandomPkg.
Updates to work around Xilinx bugs (numerous packages).
2023.09 Added OsvvmSettingsPkg. Updated AlertLogPkg, CoveragePkg, ReportPkg
2023.05 Added DelayCoveragePkg. Changed seed in CoveragePkg.
2023.04 Updated OsvvmScriptSettingsPkg
2023.01 Added OsvvmScriptSettingsPkg
2022.11 ScoreboardGenericPkg, CoveragePkg, MemoryGenericPkg - search default now PRIVATE_NAME
AlertLogPkg: Added GetTestName
2022.10 RandomBasePkg: Added SetRandomSalt
Minor updates to NameStorePkg, MemoryGenericPkg, ScoreboardGenericPkg
2022.08 Updated AlertLogPkg for AffirmIfCovered, Yaml, and Output formatter.
2022.06 Updated AlertLogPkg for AffirmIfCovered, Yaml, and Output formatter.
Updated CoveragePkg for putting coverage pass/fail into YAML and reports
2022.03 Added EdgeRose, ..., FindRisingEdge, ..., ScoreboardPkg Updates
2022.02 Added Transition Coverage.
2022.01 Added Transition Coverage.
2021.12 Added ReadCovYaml.
2021.11 Minor updates. Print CovWeight first in WriteCovYaml.
Update to usage of PercentCov in GetCov.
2021.10 Updates to generate HTML and JUnit XML for test suite information
Generate YAML and HTML for reporting Alert and Coverag information
Added ReportPkg. Uupdated CoveragePkg and AlertLogPkg
2021.09 Minor updates to support Synopsys and Cadence
2021.08 Minor deprecations in CoveragePkg and ScoreboardGenericPkg
2021.07 Updated Data Structure of CoveragePkg
2021.06 Updated Data Structures
2020.12 Minor Updates
2020.10 Minor Updates
2020.08 Specification Tracking
2020.05 PASSED Counting
2020.01 Apache Licensing
2018.04
2017.05
2016.11
2016.01
2015.06
2015.03
2015.01
2014.07a
2014.07
2014.01
2013.05
2013.04
2.4
2.3
2.2
2.1
2.0
1.X

Copyright and License

Copyright (C) 1999-2024 by SynthWorks Design Inc. Copyright (C) 2021-2024 by OSVVM Authors

This file is part of OSVVM.

Licensed under Apache License, Version 2.0 (the "License")
You may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Compile Order

Compile order for a given release is in the CHANGELOG that is distributed with that release. Hence, this file only has the compile order for the most recent release.

Revision 2024.09 September 2024

Current Revision and Compile Order

The following table lists the files and revision, starting with the files that need to be compiled first. Be sure to turn on the VHDL-2008 compile switch. You may also use the OSVVM script - osvvm.pro -- details how to run it are in the scripts directory as well as Scripts_user_guide.pdf.

File Name Revision Date
IfElsePkg.vhd 2024.07
OsvvmScriptSettingsPkg.vhd 2024.03
OsvvmSettingsPkg.vhd ** 2024.09 **
TextUtilPkg.vhd ** 2024.09 **
ResolutionPkg.vhd 2021.06
NamePkg.vhd 2024.03
OsvvmGlobalPkg.vhd 2024.03
If Aldec
VendorCovApiPkg_Aldec.vhd 2020.01
If not Aldec
VendorCovApiPkg.vhd 2020.01
If version >= 2019
LanguageSupport2019Pkg.vhd 2024.07
If version < 2019
deprecated/LanguageSupport2019Pkg_c.vhd 2024.07
TranscriptPkg.vhd 2023.01
AlertLogPkg.vhd ** 2024.09 **
TbUtilPkg.vhd ** 2024.09 **
NameStorePkg.vhd 2024.07
MessageListPkg.vhd 2021.07
SortListPkg_int.vhd 2020.01
RandomBasePkg.vhd ** 2024.09 **
RandomPkg.vhd ** 2024.09 **
RandomProcedurePkg.vhd 2021.05
CoveragePkg.vhd 2024.07
DelayCoveragePkg.vhd 2024.07
ClockResetPkg.vhd ** 2024.09 **
deprecated/ClockResetPkg_2024_05.vhd 2024.07
ResizePkg.vhd 2024.03
If Support Generic Packages
ScoreboardGenericPkg.vhd ** 2024.09 **
ScoreboardPkg_slv.vhd 2022.04
ScoreboardPkg_int.vhd 2020.01
ScoreboardPkg_signed.vhd 2024.07
ScoreboardPkg_unsigned.vhd 2024.07
ScoreboardPkg_IntV.vhd 2024.07
If NotSupport Generic Packages
deprecated/ScoreboardPkg_slv_c.vhd 2024.07
deprecated/ScoreboardPkg_int_c.vhd 2024.07
deprecated/ScoreboardPkg_signed.vhd 2024.07
deprecated/ScoreboardPkg_unsigned.vhd 2024.07
deprecated/ScoreboardPkg_IntV.vhd 2024.07
MemorySupportPkg.vhd 2022.10
If Support Generic Packages
If not Xilinx
MemoryGenericPkg.vhd ** 2024.09 **
If Xilinx
deprecated/MemoryGenericPkg_xilinx.vhd 2024.03
MemoryPkg.vhd 2022.10
If Not Support Generic Packages
MemoryPkg_c.vhd 2024.03
MemoryPkg_orig_c.vhd 2022.11
ReportPkg.vhd 2024.07
OsvvmTypesPkg.vhd 2022.01
If exist OsvvmScriptSettingsPkg_generated.vhd
OsvvmScriptSettingsPkg_generated.vhd Generated
If not exist OsvvmScriptSettingsPkg_generated.vhd
OsvvmScriptSettingsPkg_default.vhd 2024.03
If exist OsvvmSettingsPkg_local.vhd
OsvvmSettingsPkg_local.vhd User Created
If not exist OsvvmSettingsPkg_local.vhd
OsvvmSettingsPkg_default.vhd ** 2024.09 **
If version >= 2019
RandomPkg2019.vhd ** 2024.09 **
If version < 2019
deprecated/RandomPkg2019_c.vhd ** 2024.09 **
OsvvmContext.vhd ** 2024.09 **

RandomPkg2019.vhd 2024.09

  • Uses 2019 feature impure functions can have variable inout to build randomPkg without protected types.

ScoreboardGenericPkg.vhd 2024.09

  • Added FindAndDelete, FindAndFlush
  • Updated data structure

TextUtilPkg.vhd 2024.09

Added to_string_max recognizes largest and smallest integer and prints as integer'high and integer'low Added RemoveSpace, RermoveCrLf, GetLine to support file compares.

AlertLogPkg.vhd 2024.09

  • Added AffirmIfFilesMatch (renames AffirmIfNotDiff)
  • Added AlertIfFilesNotMatch (renames AlertIfDiff)
  • Added options to the above for IgnoreSpaces and IgnoreEmptyLines
  • Moved GetAlertLogID out of deprecated area

OsvvmSettingsPkg.vhd 2024.09

  • Added ALERT_LOG_IGNORE_SPACES - default false matching original behavior
  • Added ALERT_LOG_IGNORE_EMPTY_LINES - default false matching original behavior

TbUtilPkg.vhd 2024.09

  • Updated predefined barriers s.t. there is a record of barriers named PredefinedBarrierType. Names introduced in 2024.07 are now aliases

MemoryGeneric.vhd, CoveragePkg.vhd 2024.09

  • updated reporting of largest integer (32 vs 64 bits).

OsvvmContext.vhd 2024.09

  • Added RandomPkg2019

Revision 2024.07 July 2024

IfElse.vhd 2024.07

  • Added IfElse for std_logic

OsvvmSettingsPkg.vhd 2024.07

  • Added settings for ALERT_LOG_NOCHECKS_NAME and ALERT_LOG_TIMEOUT_NAME
  • See AlertLogPkg, on/off controlls for NOCHECKS is done via script variables

LanguageSupport2019Pkg.vhd and LanguageSupport2019Pkg_c.vhd 2024.07

  • Introduced to sort out the differences between VHDL-2008 and 2019
  • Currently has to_string for integer_vector for 2008 - which is already in 2019.

AlertLogPkg.vhd 2024.07

  • Test Status is now PASSED, FAILED, NOCHECKS, TIMEOUT.
    • OSVVM behavior defaults to test FAILED on NOCHECKS
    • This can be changed by setting script variable FailOnNoChecks to FALSE or 0 in OsvvmSettingsLocal.tcl
  • Updated PathTail to incorporate for generate indicies in the name.
  • Added AffirmIfEqual, AffirmIfNotEqual, AlertIfEqual, AlertIfNotEqual for integer_vector
  • Added TimeOut indication to ReportAlerts and WriteAlertYaml.
  • Added IsInitialized.

TbUtilPkg.vhd 2024.07

  • Added pre-defined barriers:
    OsvvmTestInit, OsvvmResetDone, OsvvmTestDone, TestDone, OsvvmVcInit
  • For all procedures that use Clk, added a ClkActive input parameter and defaulted it to CLOCK_ACTIVE. Allows all to support either edge of clock.
  • Former inputs named polarity were renamed - breaking change if using named association
  • Moved Clock and Reset support from TbUtilPkg to ClockResetPkg

NameStorePkg.vhd 2024.07

  • Added IsInitialized.

CoveragePkg.vhd 2024.07

  • In Yaml reports, print ones with weight = 0 last
  • Added IsInitialized.

DelayCoveragePkg.vhd 2024.07

  • Added IsInitialized.

ClockResetPkg.vhd 2024.07

  • Moved Clock and Reset support from TbUtilPkg to ClockResetPkg
  • Updated versions of CreateClock. Start behavior slightly different from old version.
  • Added CreateJitterClock

deprecated/ClockResetPkg_2024_05.vhd 2024.07

  • Moved Clock and Reset support from TbUtilPkg to ClockResetPkg
  • Has the original version of CreateClock
  • Select this package by setting the script variable ClockResetVersion to 2024.05 or less in OsvvmSettingsLocal.tcl

ScoreboardGenericPkg, ScoreboardPkg_* 2024.07

  • Made function generics impure.
  • Added IsInitialized.
  • Updated Yaml.

MemoryGenericPkg.vhd 2024.07

  • Throw Errors on Address > 40 and warnings if Address > 36
  • Added IsInitialized

ReportPkg.vhd 2024.07

  • Added timeout flag to EndOfTestReports.
  • Added scoreboard reporting for: unsigned, signed, and IntV

OsvvmContext.vhd 2024.07

  • Added ClockResetPkg

Revision 2024.03 March 2024

RandomPkg.vhd 2024.05

  • Update to address if max < min sometimes multiple errors were generated

NameStorePkg.vhd 2024.05

  • Calls to singleton forgot to pass ParentID and Search parameter to internal Protected type calls

Revision 2024.03 March 2023

IfElsePkg.vhd 2024.03 - NEW

  • Moved the different versions of IfElse function into this package

OsvvmScriptSettingsPkg.vhd 2024.03

  • Added OSVVM_SETTINGS_REVISION and OSVVM_RAW_OUTPUT_DIRECTORY

OsvvmSettingsPkg.vhd and OsvvmSettingsPkg_default.vhd 2024.03

  • Updated with settings for 2024
  • Notable changes
  • Random InitSeed uses new seed methods by default. Randomizations are likely to produce different results.
  • Coverage uses randomizes using REMAIN mode rather than AT_LEAST. Intelligent Randomization Randomizations are likely to produce different results.
  • Alerts/Logs Write Time First and Justified by default
  • WriteScoreboardYaml uses base name rather than whole name

TextUtilPkg.vhd 2024.03

  • Added handling for line having LF and CR at the end of the string
  • This supports non-compliant implementations

NamePkg.vhd 2024.03

  • Check for pointer non-null before deallocation (supports non-compliant implementations)

OsvvmGlobalPkg.vhd 2024.03

Most of package is now gone. Configuration of AlertLogPkg now handled though constants in OsvvmSettingsPkg_local.vhd or OsvvmSettingsPkg_default.vhd This allows the settings to be adjusted once for the entire library rather than by every testbench.

AlertLogPkg.vhd 2024.03

  • Changed settings to constants in OsvvmSettingsPkg rather than using Shared variable + PT and multiple levels of indirection.
  • Added AffirmIfTranscriptsMatch
  • Addressed issue so that a data structure and a VC ModelID can have the same name.

TbUtilPkg.vhd 2024.03

  • Moved the different versions of IfElse function to this IfElsePkg.vhd
  • Added BarrierType

RandomBasePkg.vhd 2024.03

  • Added SetRandomSalt function that returns its input value

RandomPkg.vhd 2024.03

  • Added impure function RandInt return integer that uses integer'low to integer'high
  • Uses settings from OsvvmSettingsPkg to control default behaviors

Coverage.vhd 2024.03

  • Changed settings to constants in OsvvmSettingsPkg rather than using Shared variable + PT and multiple levels of indirection.
  • Uses settings from OsvvmSettingsPkg to control default behaviors

ResizePkg.vhd 2024.03

  • Added AlertLogID to SafeResize
  • Improved message for errors.

MemoryGenericPkg.vhd 2024.03

  • Adjustments for Xilinx - but gave up and created MemoryGenericPkg_xilinx.vhd

OsvvmContext.vhd 2024.03

  • Added IfElsePkg

Revision 2023.09 September 2023

OsvvmSettingsPkg 2023.09 - NEW

  • Defines deferred constants that initialize settings in packages

ScoreboardGenericPkg 2023.09

  • WriteScoreboardYaml - updated to allow either full name of yaml file or just specifying base name
  • Default method for WriteScoreboardYaml selectable in OsvvmSettingsPkg (and the final setting of the call).
  • Updated spacing in printing

AlertLogPkg 2023.09

  • Updated for constants in OsvvmSettingsPkg
  • Updated justify calculations and printing for better unification of it.
  • TranscriptClose if stop due to count

CoveragePkg 2023.09

  • Updated for constants in OsvvmSettingsPkg

RandomPkg 2023.09

  • Updated for constants in OsvvmSettingsPkg

ReportPkg 2023.09

  • Added WriteSimTimeYaml to add "now" to yaml report

OsvvmScriptSettingsPkg 2023.09

  • Added OSVVM_REVISION

Revision 2023.05 May 2023

DelayCoveragePkg 2023.05 (new)

Implements a pattern for randomizing cycle based delays such as AXI's Valid and Ready.

CoveragePkg 2023.05

  • Updated InitSeed to include name of ParentID
  • Added bug fix for NVC
  • Added IsNotCovered

OsvvmContext 2023.05

Added DelayCoveragePkg

AlertLogPkg 2023.05

Bug fix in Yaml file. No longer has items whose ReportMode is DISABLED

ScoreboardGenericPkg 2023.05

Updated Pop fail on empty error to print tag if a tag is used

Revision 2023.04 April

OsvvmScriptSettingsPkg and OsvvmScriptSettings_default (new) 2023.04

Updated OsvvmScriptSettingsPkg to only contains the package declaration with deferred constants. Scripts generate package, OsvvmScriptSettingsPkg_generated, with constants defined by scripts. OsvvmScriptSettingsPkg_generated is in the .gitignore, so it will not indicate your repository has been updated.

OsvvmScriptSettings_default 2023.04 (new)

If you are not using OSVVM compile scripts and do not wish to generate the file, OsvvmScriptSettingsPkg_default has the values that were used in older revisions.

AlertLogPkg 2023.04

Added GetTranscriptName

ReportPkg 2023.04

Added TranscriptOpen without parameters. Names transcript GetTranscriptName & ".log"

ScoreboardGenericPkg 2023.04

Bug fix for Peek with a tag

Revision 2023.01 January

OsvvmScriptSettingsPkg 2023.01 (new)

Defines settings that are shared by the scripts. Autogenerated by OSVVM scripts.

Updated to use Constants from OsvvmScriptSettingsPkg 2023.01

  • TranscriptPkg, AlertLogPkg, CoveragePkg, ReportPkg, ScoreboardGenericPkg, ScoreboardPkg_xxx_c.vhd

RandomBasePkg 2023.01

Added functions for RandomSalt to allow setting in a declaration region

OsvvmContext 2023.01

Added OsvvmScriptSettingsPkg

Revision 2022.11 November 2022

ScoreboardGenericPkg, CoveragePkg, MemoryGenericPkg 2022.10

Changed the default of the search parameter to PRIVATE_NAME. The original preference was NAME_AND_PARENT_ELSE_PRIVATE.

When iterating across VC instances using for generate, each instance ended up with the same name. As a result, all the FIFOs, Scoreboards, Coverage Models, and Memories in the multiple instances were shared by default, unless, more advanced methods for setting the AlertLogID for the VC. These methods require users to also set generics. The result is a methodology that goes wrong for basic users.

Revision 2022.10 OCtober 2022

RandomBasePkg.vhd 2022.10

Added SetRandomSalt(string or integer), GetRandomSalt (integer).

ScoreboardGenericPkg.vhd 2022.10

Added Parent Name to YAML output.

NameStorePkg.vhd 2022.10

Changed PRIVATE to PRIVATE_NAME to avoid VHDL-2019 issue.

MemorySupportPkg.vhd, MemoryGenericPkg.vhd, MemoryPkg.vhd, MemoryPkg_c.vhd 2022.10

Minor tweaks for code quality improvement. Working toward MemoryBaseType being a generic. Waiting on GHDL release update.

ScoreboardGenericPkg.vhd 2022.10

Changed PRIVATE to PRIVATE_NAME to avoid VHDL-2019 issue.

Revision 2022.09 September 2022

ScoreboardGenericPkg.vhd, ScoreboardPkg_slv_c.vhd, ScoreboardPkg_int_c.vhd 2022.09

Added FifoCount to YAML output.

TbUtilPkg.vhd 2022.09

Added WaitForTransactionOrIrq, FinishTransaction, TransactionPending for RdyType, AckType

CoveragePkg.vhd 2022.09

Updated AffirmIfCovered and AlertIfNotCovered for Aldec 2018.02 version

Revision 2022.08 August 2022

TbUtilPkg.vhd 2022.08

Added IsHexOrStdLogic. Updated ReadHexToken to support reading "UWLH-"

MemorySupportPkg.vhd, MemoryGenericPkg.vhd, MemoryPkg.vhd, MemoryPkg_c.vhd 2022.08

New. Implements storage policies for MemoryGenericPkg/MemoryPkg Supports any bit length of memory.

Revision 2022.06 June 2022

AlertLogPkg.vhd 2022.06

Added Output formatter that allows adjustments to output. Updated output of AlertIfDiff / AffirmIfNotDiff.

CoveragePkg.vhd 2022.06

Updated CoveragePkg for putting coverage pass/fail into YAML and reports. Added AffirmIfCovered.

Revision 2022.03 March 2022

TbUtilPkg.vhd 2022.03

Added EdgeRose, EdgeFell, EdgeActive, FindRisingEdge, FindFallingEdge, FindActiveEdge Updated WaitForTransaction for RdyType/AckType to use EdgeActive

ScoreboardGenericPkg.vhd 2022.03

Maintence update to SetAlertLogID / NewID

Revision 2022.02 February 2022

AlertLogPkg.vhd 2022.02

Added SetAlertPrintCount. Sets a maximum number of times to print an Alert level for an AlertLogID. Added NewID to bring consistent naming with other Singleton data structures and new capability (PrintParent and ReportMode).

CoveragePkg.vhd 2022.02

Updated NewID with ParentID, ReportMode, Search, PrintParent. Supports searching for coverage models.

MemoryPkg.vhd 2022.02

Updated NewID with ReportMode, Search, PrintParent. Supports searching for Memory models.

ScoreboardGenericPkg.vhd 2022.02

Updated NewID with ParentID, ReportMode, Search, PrintParent. Supports searching for Scoreboard models. Added support to do Scoreboard Reports (GotScoreboards, WriteScoreboardYaml)

ReportPkg.vhd 2022.02

In EndOfTestReports, added calls to WriteScoreboardYaml for Scoreboard reporting.

NameStorePkg.vhd 2022.02

Updated NewID and Find with ParentID and Search. Supports searching in CoveragePkg, ScoreboardGenericPkg, and MemoryPkg.

TextUtilPkg.vhd 2022.02

Updated to_hxstring for better meta value handling (U, X, Z, W, ). Four consecutive meta values result in that character. Mixed meta results in '?'. Added Justify that aligns LEFT, RIGHT, and CENTER with parameters in a sensible order.

OsvvmGlobalPkg.vhd 2022.02

Added support for IdSeparator. Supports PrintParent mode PRINT_NAME_AND_PARENT.

NamePkg.vhd 2022.02

Added NameLength method to NamePType

Revision 2022.01 January 2022

TextUtilPkg.vhd 2022.01

Added to_hxstring - based on hxwrite (in TbUtilPkg prior to release)

AlertLogPkg.vhd 2022.01

For AlertIfEqual and AffirmIfEqual, all arrays of std_ulogic use to_hxstring Updated return value for PathTail

CoveragePkg.vhd 2022.01

Added DeallocateBins and TCover Updates to allow AddBins and AddCross with 0 for AtLeast and Weight Updated GenBin s.t. defaults AtLeast and Weight to 0 Updated AddBins and AddCross s.t. defaults AtLeast and Weight to 1

ScoreboardGenericPkg.vhd, ScoreboardPkg_slv_c, ScoreboardPkg_int_c 2022.01

Added CheckExpected Added SetCheckCountZero to ScoreboardPType

TbUtilPkg.vhd 2022.01

Added MetaTo01 Added WaitForTransaction without clock for RdyType/AckType and bit

OsvvmTypesPkg.vhd 2022.01

Defined slv_vector

OsvvmContext.vhd 2022.01

Added OsvvmTypesPkg

Revision 2021.12 December 2021

CoveragePkg.vhd 2021.12

Added ReadCovYaml.

Revision 2021.11 November 2021

CoveragePkg.vhd 2021.11

Minor updates. Print CovWeight first in WriteCovYaml. Update to usage of PercentCov in GetCov.

Revision 2021.10 October 2021

ReportPkg.vhd 2021.10

Implements EndOfTestReports (was called EndOfTestSummary in 2021.09). EndOfTestReports calls

  • ReportAlerts from AlertPkg,
  • WriteAlertSummaryYaml from AlertPkg to generate Build Report .yml,
  • WriteAlertYaml from AlertPkg to generate ./reports/_alerts.yml
  • WriteCovYaml from CoveragePkg to generate ./reports/_cov.yml See the OSVVM scripts as the above YAML files are all automatically converted to HTML. Make sure to name your tests with AlertLogPkg.SetAlertLogName as that is where the above "" comes from.

AlertLogPkg.vhd 2021.10

Added WriteAlertYaml to create AlertLog reports in Yaml (which the scripts convert to HTML) WriteAlertSummaryYaml replaced the experimental CreateYamlReport. Both of the above are called by ReportPkg.EndOfTestReports. See above. Deprecated Items:

  • CreateYamlReport is deprecated. Please use WriteAlertSummaryYaml.
  • EndOfTestSummary was moved to ReportPkg and deprecated. It is replaced by EndOfTestReports. The move was necessary as it calls procedures from AlertLogPkg and CoveragePkg.

CoveragePkg.vhd 2021.10

Added WriteCovYaml which is called by EndOfTestReports

Revision 2021.09 September 2021

AlertLogPkg.vhd 2021.09

Experimental Release of EndOfTestSummary and CreateYamlReport

CoveragePkg.vhd 2021.09

Minor update to WriteBin in CoveragePkg for setting parameters

ScoreboardPkg_slv_c.vhd and ScoreboardPkg_int_c.vhd 2021.09

Reintroduced into the repository. Cadence Xcelium does not yet support generics on a package.

Minor updates for compile/simulate in Synopsys VCS and Cadence Xcelium

CoveragePkg.vhd, MemoryPkg.vhd, NameStorePkg.vhd, RandomPkg.vhd, RandomBasePkg.vhd, and ScoreboardGenericPkg.vhd

Revision 2021.08 August 2021

CoveragePkg.vhd 2021.08

Deprecated and removed SetAlertLogID. Use NewID instead. Deprecated SetName, SetMessage. Deprecated AddBins, AddCross, GenBin, and GenCross with weight parameter.

ScoreboardGenericPkg.vhd 2021.08

Deprecated and removed SetAlertLogID. Use NewID instead.

Revision 2021.07 July 2021

MessageListPkg.vhd and deprecated MessagePkg.vhd 2021.07

Created linked list version for multi-line message handling. Deprecated protected type version (MessagePkg) as it cannot be used directly in the new data structures.

CoveragePkg.vhd 2021.07

Added new data structure to CoveragePkg to facilitate creating functional coverage using ordinary procedure and function calls.

Deprecated osvvm.tcl 2021.07

The compile script, osvvm.tcl, is no longer supported. Correct order is specified above as well as by osvvm.pro.

Revision 2021.06 June 2021

ResolutionPkg.vhd and ResizePkg.vhd 2021.06

Refactored conversions of transaction records from ResolutionPkg.vhd into ResizePkg.vhd. Part of plan to transaction to VHDL-2019 interfaces.

NameStorePkg.vhd 2021.06

NamePkg with updated data structure to better support new data structures

AlertLogPkg.vhd 2021.06

Minor updates to FindAlertLogID

RandomPkg.vhd and RandomBasePkg.vhd 2021.06

Updated InitSeed for better seeds. Defaults to old method. Moved some items from RandomPkg to RandomBasePkg to support future revisions

RandomProcedurePkg.vhd 2021.06

Added to support new data structures in CoveragePkg. Capability limited to what is needed by CoveragePkg. When you can use a protected type, use RandomPkg.vhd. When we have VHDL-2019 support will no longer need this.

MemoryPkg.vhd 2021.06

New data structure. Supports old code. Adds new use models.

MemoryPkg_2019.vhd is deleted 2021.06

New MemoryPkg.vhd replaces MemoryPkg_2019 with data structure + NewID

ScoreboardGenericPkg.vhd 2021.06

New data structure. Supports old code. Adds new use models.

Revision 2020.12 December 2020

Resolution.vhd 2020.12

Updated ToTransaction and FromTransaction with length parameter. Downsizing now permitted when it does not change the value.

MemoryPkg_2019.vhd 2020.12

Beta version of MemoryPType with VHDL-2019 generics. Used in place of MemoryPkg. Tested in RivieraPro. Requires compile switch -2019.

AlertLogPkg.vhd 2020.12

Added MetaMatch to AffirmIfEqual and AffirmIfNotEqual for std_logic family to use MetaMatch. Added AffirmIfEqual for boolean. Oversight as MetaMatch was added to AlertIfEqual and AlertIfNotEqual in 2020.10.

Transcript.vhd 2020.12

Updated TranscriptOpen parameter Status to InOut to work around simulator bug.

Revision 2020.10 October 2020

AlertLogPkg.vhd 2020.10

Added function MetaMatch. It is similar to STD_MATCH and ?=, except that U=U, X=X, Z=Z, and W=W. All else is the same as STD_MATCH. AlertIfEqual and AlertIfNotEqual for std_logic family use MetaMatch rather than ?=.

ScoreboardPkg_slv.vhd 2020.10

Uses MetaMatch for the Match function instead of STD_MATCH.

Revision 2020.08 August 2020

AlertLogPkg.vhd 2020.08

2020.08 is a major update to AlertLogPkg.

This revision is the Alpha release of integrated Specification Tracking capability. Specification tracking capability is a work in progress and may change in future releases until stabilized.

Added requirements in the form of "PASSED" Goals that are reported with ReportAlerts. A PASSED goal is a number of "PASSED" affirmations an AlertLogID must have. There are two mechanisms to set passed goals: GetReqID and ReadSpecification.

When a test has requirements, a test will fail if requirements are not met and FailOnrequirementErrors is true (default is TRUE). Disable using SetAlertLogOptions(FailOnRequirementErrors => TRUE).

For a test that has requirements, summary of ReportAlerts will print a requirements summary (# met of # total) if PrintIfHaveRequirements is TRUE (default is TRUE) or PrintRequirements is TRUE (default is FALSE). Either of these can be changed using SetAlertLogOptions.

For a test that fails, detailed printing of requirements will be printed in ReportAlerts if PrintRequirements is TRUE (default is FALSE).

Requirements can be specified using either ReadSpecification or GetReqID. Requirements are recorded with AffirmIF. A new form of AffirmIF was added, AffirmIF("RequirementName", condition, ... ). Currently overloading for the new AffirmIf is limited to AffirmIf. Other variations such as AffirmIFEqual may be used by calling AffirmIfEqual(GetReqID("RequirementName"), ...).

Requirements are reported in ReportAlerts -- but only in detail if the test fails. Requirements are reported always in ReportRequirements.

WriteAlerts prints the information from ReportAlerts as a CSV file. WriteRequirements prints the information in ReportRequirements as a CSV file.

ReadRequirements reads and merges requirement information from multiple separate tests.

WriteTestSummary prints the summary information from the first line of WriteAlerts as a CSV file. It is intended that the results of multiple tests are written out into the same file -- collecting all test results together. ReadTestSummaries reads this information in as "requirements". This can be used in conjunction with ReadSpecification to specify which tests should run -- so we can detect whether all tests have run and have passed. ReportTestSummaries prints out the test summaries. WriteTestSummaries writes out the test summaries as a CSV file.

RandomPkg.vhd 2020.08

Added the functions RandBool, RandSl, RandBit, DistBool, DistSl, and DistBit.

TextUtilPkg.vhd 2020.08

Added the procedures ReadUntilDelimiterOrEOL and FindDelimiter.

Revision 2020.05 May 2020

AlertLogPkg.vhd 2020.05

Major update to AlertLogPkg. Output formatting of ReportAlerts has changed.

Added count of Log PASSED for each level. Prints by default. Disable by using SetAlertLogOptions (PrintPassed => DISABLED).

Added total count of log PASSED for all levels. Prints in "%% DONE" line by default. Disable as per each level. However, always prints if passed count or affirmation count is > 0.

Added affirmation counts for each level. Prints by default. Disable by using SetAlertLogOptions (PrintAffirmations => DISABLED).

Total count of affirmations is disabled using SetAlertLogOptions above. However, it always prints if affirmation count > 0.

Disabled alerts are now tracked with a separate DisabledAlertCount for each level. These do not print by default. Enable printing for these by using SetAlertLogOptions (PrintDisabledAlerts => ENABLED).

A total of the DisabledAlertCounts is tracked. Prints in "%% DONE" anytime PrintDisabledAlerts is enabled or FailOnDisabledErrors is enabled. FailOnDisabledErrors is enabled by default. Disable with SetAlertLogOptions (FailOnDisabledErrors => DISABLED).

Internal to the protected type of AlertLogPkg is AffirmCount which tracks the total of FAILURE, ERROR, and WARNING and ErrorCount which tracks a single integer value for all errors. Many simulators give you the ability to trace these in your waveform windows.

Added printing of current ErrorCount in the alert and log messages. When enabled, the number immediately follows the "%% Alert" or "%% Log". Enable using SetAlertLogOptions (WriteAlertErrorCount=> ENABLED) and SetAlertLogOptions (WriteLogErrorCount=> ENABLED).

Added enable parameter to SetAlertLogJustify(Enable := TRUE) to allow turning off justification.

Added pragmas "synthesis translate_off" and "synthesis translate_on" in a first attempt to make the package ok for synthesis tools. It has not been tested, so you will need to try it out and report back.

Added a prefix and suffix for Alerts and Logs. They support set, unset, and get operations using SetAlertLogPrefix(ID, "String"), UnSetAlertLogPrefix(ID), GetAlertLogPrefix(ID), SetAlertLogSuffix(ID, "String"), UnSetAlertLogSuffix (ID), and GetAlertLogSuffix (ID).

Added ClearAlertStopCounts and ClearAlertCounts. ClearAlerts clears AlertCount, DisabledAlertCount, AffirmCount, PassedCount for each level as well as ErrorCount, AlertCount, PassedCount, and AffirmCount for the top level. ClearAlertStopCounts resets the stop counts back to their default values. ClearAlertCounts calls both ClearAlerts and ClearAlertStopCounts.

CoveragePkg.vhd 2020.05

Minor enhancements.

Added GetIncIndex, GetIncBinVal, GetIncPoint which get the index, BinVal, or point of the next bin in the coverage model (following an incrementing with wrap around pattern).

Added GetNextIndex, GetNextBinValue, GetNextPoint which in turn use Random, Incrementing, or Minimum pattern to select the next index, BinVal, or point. The intent is to allow a test to algorithmically or via a generic select its mode of next item selection. The selection can be made through an explicit parameter of type NextPointModeType (whose values are RANDOM, INCREMENT, or MIN). If no parameter is specified, the internal NextPointModeVar is used. It is set by calling SetNextPointMode(Mode => RANDOM).

GetLastIndex now will return the index that was last used for either used for stimulus generation (in the case of GetRandIndex, GetIncIndex, GetMinIndex, GetMaxIndex, or GetNextIndex) or coverage collection (in the case of ICover).

For consistency in naming, GetRandIndex (new capability), GetRandBinVal, and GetRandPoint are introduced to deprecate RandCovBinVal and RandCovPoint.

Added conversions from integer to_boolean and to_std_logic and from integer_vector to_boolean_vector and to_std_logic_vector (and alias: to_slv).

ScoreboardGenericPkg.vhd 2020.05

Minor enhancements.

Added Check function that returns true when the check passes.

Added additional counts to track the number of items that have been popped from the FIFO (GetPopCount). Added capability to report the number of items in the FIFO with GetFifoCount. Number of items Pushed into the FIFO is now available as GetPushCount (as well as GetItemCount).

ResolutionPkg.vhd 2020.05

Added Extend and Reduce functions for type std_logic_vector. Extend is resize that only allows the array size to grow and is used when putting a value into the transaction record. Reduce is resize that only allows the array size to stay the same or shrink and is used when removing a value from the transaction record.

Added ToTransaction to convert from std_logic_vector to the transaction type std_logic_vector_c. Alternately use type conversion std_logic_vector_c. Added FromTransaction to convert from the transaction type std_logic_vector_c to std_logic_vector. Alternately could use type conversion std_logic_vector.

Revision 2020.01 January 2020

Updated license to Apache.

Revision 2018.04 April 2018

This is a minor release. No other documentation has been updated for this release.

Current Revision and Compile Order

See the 2018.04 release notes for details.

AlertLogPkg.vhd 2018.04

Added minor fix to PathTail. Did some changes to prepare to change AlertLogIDType to a type.

CoveragePkg.vhd 2018.04

Added minor fix to the calculation of PercentCov so when AtLeast is less than or equal to 0 the value is correct. Added "string'" fix for GHDL. Removed deprecated procedure Increment - however see TbUtilPkg as it moved there.

TbUtilPkg.vhd 2018.04

Added RequestTransaction, WaitForTransaction, Toggle, WaitForToggle for bit. Added Increment and WaitForToggle for integer.

ScoreboardGenericPkg.vhd 2018.04

Made Pop Functions Visible. Did preparations for AlertLogIDType to change to a type.

MessagePkg.vhd 2018.04

Minor updates to Alert message.

Revision 2017.05 May 2017

AlertLogPkg.vhd 2017.05

AffirmIf and AffirmIfNot has additional overloading. Added AffirmIfEqual, AffirmIfDiff, GetAffirmCount, IncAffirmCount, IsAlertEnabled, and IsLogEnabled.

Deprecated GetAffirmCheckCount (see GetAffirmCount), IncAffirmCheckCount (see IncAffirmCount), and IsLoggingEnabled (see IsLogEnabled and GetLogEnable). Deprecated the overloading of AffirmIf that has an AlertLevel and/or LogLevel as a parameter - for AffirmIf AlertLevel should be ERROR and LogLevel should be PASSED.

CoveragePkg.vhd 2017.05

Updated the printing of WriteBin so that the bin name is printed (if it is specified by either SetAlertLogID or SetName). Added ClearCov (which deprecates SetCovZero) - makes naming similar to AlertLogPkg ClearAlerts.

ScoreboardGenericPkg.vhd 2017.05

Updated printing to correlate with AffirmIf. First the received (actual) value is printed and then the expected value is printed. In addition, the expected value is only printed when it does not match the actual value (an ERROR).

Revision 2016.11 November 2016

Note that while ScoreboardGenericPkg, TbUtilPkg, and ResolutionPkg are new to OSVVM, they have been distributed with SynthWorks' VHDL training classes for some time now.

VendorCovApiPkg, VendorCovApiPkg_Aldec 2016.11

Provides API to link CoveragePkg to vendor tools. Compile either VendorCovApiPkg.vhd or VendorCovApiPkg_Aldec.vhd.

TranscriptPkg 2016.11

Added BlankLine procedure to print blank lines.

TextUtilPkg 2016.11

Added to_lower and to_upper. These are necessary when using 'instance_name with a call to InitSeed in either RandomPkg or CoveragePkg.

AlertLogPkg 2016.02

Fixed IsLogEnableType (for PASSED) and AffirmIf (to pass AlertLevel).

SortListPkg_int 2016.11

Revised Add. When a matching value is found, add the value after the previous value. Supports situations where the key is shorter than the entire word.

RandomPkg 2016.11

No changes to RandomPkg. Advanced release for both the package and the documentation so they are consistent.

CoveragePkg 2016.11

Added calls to VendorCovApiPkg to record coverage in the simulator database. Added GetBinName(Index) to return a coverage bin name.

MemoryPkg 2016.11

Refined MemRead to return value if written, X if previous contained an X, or U if the location has never been written.

ScoreboardGenericPkg (first release to OSVVM) 2016.11

Generic package for creation of Scoreboards and FIFOs inside of a protected type.

ScoreboardPkg_slv, ScoreboardPkg_int (first release to OSVVM) 2016.11

Instance of ScoreboardGenericPkg for types std_logic_vector and integer.

ResolutionPkg (first release to OSVVM) 2016.11

Resolution functions to simplify using records as a transaction interface.

TbUtilPkg (first release to OSVVM) 2016.11

Handshaking utilities for transaction based testbenches. Targeted for use in testbenches that use multiple process (multi-threaded) transaction dispatch.

OsvvmContext 2016.11

Updated to include ResolutionPkg and TbUtilPkg. Note that ScoreboardPkg_int and ScoreboardPkg_slv are intentionally left out as if they are not used the reference will be a nuisance.

osvvm.do 2016.11

Compile script for OSVVM in ModelSim, QuestaSim, and RivieraPro. Be sure to update the path to your files and choose the correct version of VendorCovApiPkg.

Revision 2016.01 January 2016

AlertLogPkg 2016.01

Fixed bug that kept more than 32 bins from being used.

CoveragePkg 2016.01

Revised ConcatenateBins so it does not call Alert to allow it to be a pure function. Added bounds checking to ICover so that if ICover is called with the wrong length of integer_vector, it will cause an Alert FAILURE.

MemoryPkg and TextUtilPkg 2016.01

Changed L.all(1) to L.all(L'left). GHDL does not default objects of type line to have an index of 1.

TranscriptPkg 2016.01

Minor reorganization of code so that all calls to TranscriptOpen eventually call the same code.

Revision 2015.06 June 2015

MemoryPkg (New) 2015.06

New to OSVVM. Package with protected type for implementing memories. Methods MemInit, MemRead, MemWrite, MemErase, FileReadH, FileReadB, FileWriteH, FileWriteB, SetAlertLogID, Deallocate.

AlertLogPkg 2015.06

Added AffirmIf. Added PASSED log level. Added IncAlertCount as a silent alert (Used by CoveragePkg). Revised ReportAlerts to print number of affirmations checked. Added GetAffirmCheckCount, IncAffirmCheckCOunt. ClearAlerts also clears affirmations. Added CreateHierarchy final parameter to GetAlertLogID. Added a Get for every Set. Moved EmptyOrCommentLine to TextUtilPkg and revised.

CoveragePkg 2015.06

Implemented Mirroring for WriteBin and WriteCovHoles. When in ILLEGAL_OFF mode, added IncAlertCount (as a silent alert). Added SetAlertLogID(Name, ParentID, CreateHierarchy). Updated Alert output format. Added AddCross(CovMatrix?Type). Deprecated AddBins(CovMatrix?Type). Moved EmptyOrCommentLine to TextUtilPkg and revised.

TextUtilPkg (New) 2015.06

Shared utilities for file reading. SkipWhiteSpace, EmptyOrCommentLine, ReadHexToken, ReadBinaryToken.

RandomPkg 2015.06

Revised calls to Alert to 2015.03 preferred format with AlertLogID first.

NamePkg 2015.06

Added input parameter to Get to specify a return value when NamePtr is not initialized.

RandomBasePkg 2015.06

Changed GenRandSeed to impure since it calls Alert (and Alert is a parent of a call to a protected type method).

OsvvmContext.pkg 2015.06

Added MemoryPkg

Revision 2015.03 March 2015

AlertLogPkg 2015.03

Added AlertIfEqual, AlertIfNotEqual, and AlertIfDiff (file). Added ReadLogEnables to initialize LogEnables from a file. Added ReportNonZeroAlerts. Added PathTail to extract an instance name from MyEntity'PathName. Added ReportLogEnables and GetAlertLogName. See AlertLogPkg_User_Guide.pdf for details.

For hierarchy mode, AlertIfEqual, AlertIfNotEqual, and AlertIfDiff have the AlertLogID parameter first. Overloading was added for AlertIf and AlertIfNot to make these consistent. Now with multiple parameters, it is easier to remember that the AlertLogID parameter is first. The older AlertIf and AlertIfNot with the AlertLogID as the second parameter were kept for backward compatibility, but are considered bad practice to use in new code.

Added ParentID parameter to FindAlertLogID. This is necessary to correctly find an ID within an entity that is used more than once.

Bug fix: Updated GetAlertLogID to use the two parameter FindAlertLogID. Without this fix, Alerts with the same name incorrectly use the same AlertLogID.

Bug fix: Updated NewAlertLogRec (called by GetAlertLogID) so a new record gets Alert and Log enables based on its ParentID rather than the ALERTLOG_BASE_ID. Issue, if created an Comp1_AlertLogID, and disabled a level (such as WARNING), and then created a childID of Comp1_AlertLogID, WARNING would not be disabled in childID.

Bug fix: Updated ClearAlerts to correctly set stop counts (broke since it previously did not use named association). Without this fix, after calling ClearAlerts, a single FAILURE would not stop a simulation, however, a single WARNING would stop a simulation.

Revision 2015.01 January 2015

OsvvmContext (New) 2015.01

OsvvmContext is a context declaration. Rather than referencing osvvm packages with individual use clauses, instead use a single context reference:

library osvvm ;

context osvvm.OsvvmContext ;

OsvvmGlobalPkg (New) 2015.01

Manages global report settings for CoveragePkg and AlertLogPkg. Provides constants and base types for AlertLogPkg.

TranscriptPkg (New) 2015.01

TranscriptPkg simplifies different parts of a testbench using a common transcript file (named TranscriptFile). Also provides overloading for Print and WriteLine that use TranscriptFile when it is opened (via TranscriptOpen), and otherwise, use std.env.OUTPUT.

AlertLogPkg (New) 2015.01

New package added to allow catching and counting of assert FAILURE, ERROR, WARNING as well as do verbosity filtering for log files.

The package offers either a native OSVVM mode or an interface mode. In the interface mode, the package body is used to redirect OSVVM internal calls to a separate alert/log package. For example, for BitVis Utility Library (BVUL), there is a package body of AlertLogPkg that allows OSVVM to record asserts and logs via BVUL. By only changing the package body, the interface mode can be recompiled without requiring other elements of the OSVVM library to be recompiled. This same methodology allows connection to other packages.

RandomPkg and RandomBasePkg 2015.01

Replaced all asserts with calls to AlertPkg.

CoveragePkg 2015.01

Changes

Replaced all asserts and reports with calls to AlertPkg. Added a verbosity flag to WriteBin to allow it to handle debug calls.

WriteBin prints a multiple line report. As a result, instead of calling Log in the AlertPkg, package, when called with a verbosity flag, WriteBin first checks to see if its ScopeID and Verbosity Level are allowed to print. If enabled, it then uses write and writeline to print the report.

The undocumented method, DumpBin, now has a LogLevel parameter. Its interface is:

procedure DumpBin (LogLevel : LogType := DEBUG) ;

Additions

The following methods were added:

procedure SetAlertLogID (A : AlertLogIDType) ;
impure function GetAlertLogID return AlertLogIDType ;
impure function SetName (Name : String) return string ;
impure function GetName return String ;
impure function InitSeed (S : string ) return string ;
procedure WriteBin (LogLevel : LogType ; . . .) ;
procedure WriteCovHoles ( LogLevel : LogType ; . . . ) ;

Revision 2014.07a December 2014

CoveragePkg, MessagePkg, NamePkg 2014.12

Removed memory leak in CoveragePkg.Deallocate. Removed initialized pointers from CoveragePkg, MessagePkg, and NamePkg -- when a protected type with initialized pointers is abandoned, such as when declared in a subprogram exits, a memory leak will occur as there is no destructor to deallocate the initialized pointers.

Revision 2014.07 July 2014

RandomPkg

No changes were made to RandomPkg. It is still labeled 2014.01.

CoveragePkg

CoveragePkg now references both MessagePkg and NamePkg.

Added names to bins. When using WriteBin or WriteCovHoles, if a bin name is set, it will print. For details, see Setting Bin Names in the Reporting Coverage section of the CoveragePkg Users Guide.

Enhanced WriteBin to print "PASSED" if the count is greater than or equal to the goal (AtLeast value), otherwise, it prints "FAILED". Added a number of parameters to WriteBin to control what fields of a WriteBin report get printed. See Enabling and Disabling WriteBin fields in the Reporting Coverage section of the CoveragePkg Users Guide.

Revision 2014.01 January 2014

RandomPkg

Added randomization for time (RandTime), additional overloading for type real (RandReal), and sets of values for types (integer_vector, real_vector, and time_vector. Made Sort and RevSort from SortListPkg_int visible using aliases.

CoveragePkg

Revised ReadCovDb to support merging of coverage models (from different test runs).

Revised RandCovPoint and RandCovBinVal to log the bin index in the LastIndex variable. Revised ICover to look in bin referenced by LastIndex first. Added method GetLastIndex to get the variable value. Added GetLastBinVal to get the BinVal of LastIndex.

Revised AddBins and AddCross bin merging to allow arbitrary CountBin overlap. With the addition of LastIndex, the overlap is not an issue.

Split SetName into SetMessage (headers) and SetName (printing illegal bins)

Added method GetItemCount to return the count of the number of randomizations and method GetTotalCovGoal to return the sum of the individual coverage goals in the coverage model.

Revision 2013.05 May 2013

RandomPkg

Added big vector randomization.

CoveragePkg

No substantial changes. Removed extra variable declaration in functions GetHoleBinval, RandCovBinVal, RandCovHole, GetHoleBinVal. Now referencing NULL_RANGE type from RandomPkg to remove NULL range warnings.

Revision 2013.04 April 2013

RandomPkg

Changed DistInt return value. The return value is now determined by the range of the input array. For literal values, this produces the same value as it did previously. Also added better error checking for weight values.

Added better min, max error handling in Uniform, FavorBig, FavorSmall, Normal, Poisson.

CoveragePkg

Revised AddBins and AddCross such that bin merging is off by default. Added SetMerging to enable/disable merging. Note: Merging is an experimental feature and still evolving.

Revised AddBins and AddCross to check for changes in BinVal size (different size bin).

Added RandCovPoint for integer.

Added SetThresholding and SetCovThreshold (Percent) to enable/disable(default) thresholding. Revised RandCovPoint and RandCovBinVal to use the new mechanism.

Added SetCovTarget to increase/decrease coverage goals for longer/shorter simulation runs. Made CovTarget the default percentage goal (via overloading) for methods RandCovPoint, RandCovBinVal, IsCovered, CountCovHoles, GetHoleBinVal, and WriteCovHoles.

Revised SetIllegalMode and ICover to support ILLEGAL_FAILURE (severity FAILURE on illegal bin).

Added manual bin iteration support. Added the following methods that return a bin index value: GetNumBins, GetMinIndex, and GetMaxIndex. Added the following methods that return bin values: GetBinVal(BinIndex), GetMinBinVal, and GetMaxBinVal. Added the following methods that return point values: GetPoint(BinIndex), GetMinPoint, and GetMaxPoint.

Added GetCov to return the current percent done of the entire coverage model.

Added FileOpenWriteBin and FileCloseWriteBin to specify default file for WriteBin, WriteCovHoles, and DumpBin.

Added CompareBins to facilitate comparing two coverage models. Added CompareBins to facilitate comparing two coverage models.

Revised WriteBin, WriteCovHoles, and WriteCovDb to check for uninitialized model.

Revised WriteBins and WriteCovHoles to only print weight if the selected WeightMode uses the weight.

Added IsInitialized to check if a coverage model is initialized.

Added GetBinInfo and GetBinValLength to get bin information

Changed WriteCovDb default for File_Open_Kind to WRITE_MODE. Generally only one WriteCovDb is needed per coverage model.

Revised WriteCovDb and ReadCovDb for new internal control/state variables, in the order of ThresholdingEnable, CovTarget, and MergingEnable. To manually edit old file, add FALSE, 100.0, FALSE to end of first line.

Removed IgnoreBin with AtLeast and Weight parameters. These are zero for ignore bins.

Revised method naming for consistency. The following have changed:

New Name Old Name Why
GetErrorCount CovBinErrCnt Consistency between packages
GetMinCount GetMinCov[return integer] Naming clarity
GetMaxCount GetMaxCov[return integer] Naming clarity
SetName SetItemName SetName now does multi-line messages
RandCovBinVal RandCovHole Naming consistency (2.4)
GetHoleBinVal GetCovHole Naming consistency (2.4)

Deprecated usage of the AtLeast parameter (integer) with the following methods: RandCovPoint, RandCovBinVal, IsCovered, CountCovHoles, GetHoleBinVal, and WriteCovHoles.

Revision 2.4 January 2012

RandomPkg

No changes

CoveragePkg

Added bin merging and deletion for overlapping bins.

Working on consistency of naming. Renamed RandCovHole to RandCovBinVal. Renamed GetCovHole to GetCovBinVal. Old names maintained for backward compatibility.

New Name Old Name Why
RandCovBinVal RandCovHole Naming consistency
GetCovBinVal GetCovHole Naming consistency

Revision 2.3 January 2012

RandomPkg

No changes

CoveragePkg

Revision 2.3 adds the function GetBin. GetBin is an accessor function that returns a bin in the form of a record. It is only intended for debugging. In particular, the return value of this function may change as the internal data types evolve.

Revision 2.2 July 2011

RandomPkg

Removed '_' in the name of subprograms FavorBig and FavorSmall to make more consistent with other subprogram names.

CoveragePkg

Revision 2.2 adds AtLeast and Weights to the coverage database. The AtLeast value allows individual bins to have a specific coverage goal. A conjunction of the AtLeast and Weight (depending on the WeightMode) are used to weight the random selection of coverage holes. These features are at the heart of intelligent coverage.

Revision 2.1 June 2011

RandomPkg

Bug fix to convenience functions for slv, unsigned, and signed.

CoveragePkg

Removed signal based coverage support.

Revision 2.0 April 2011

CoveragePkg

Coverage modeled in a protected type.

Revision 1.X June 2010

CoveragePkg

Coverage modeled in signals of type integer_vector. The signal based coverage methodology is available in the package, CoverageSigPkg, however, it is recommended that you use CoveragePkg instead.