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SimpleSolver Change Log Summary
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3-22-17 Version 5.4.2
- Security Update #3: add Digital Signature to SimpleSolver Installer

3-13-17 Version 5.4.1
- Security Update #2: add Digital Signature

1-31-17 Version 5.4
- add Security Update: Install Executable files in Program Files/Program Files (x86) directory
- add periodic check for new SSolver versions
- add several minor improvements

10-10-16 Version 5.3.1
- Disable Simple Solver weekly "New Version Available" check which may cause a false Firewall Error

4-05-16 Version 5.3  - General update
- add numerous improvements and bug fixes initially developed for the ProgramEdit code editor

1-14-15 Version 5.2.4  - Correct a bug that can inhibit the creation of a TaskBar button when changing tools

12-17-14 Version 5.2.3  - Minor update: Reduced program startup time

9-05-14 Version 5.2.2  - Minor update

5-04-14 Version 5.2.1  - Minor update: Moved web site to http://www.simplesolverlogic.com/

7-10-13 Version 5.2  - Major update #2 to Permutation tool.  Added an example menu and group constraints. Also added the capability to save a session: comments, data values and option settings.

6-05-13 Version 5.1  - Major update to Permutation tool.  Added Search tool to BEQ-RAND-PERM-SYN.  Updated all Search tools.  Corrected minor LDD and SYN bugs.

3-28-13 Version 5.0.2  - LDD SIM Waveform - corrected bug in the common vertical scroll bar.  LDD - added a Search tool.

3-13-13 Version 5.0.1  - Added an "8-Bit Computer" item to the LDD and SIM Help menus.

3-06-13 Version 5.0  - Added an example of an 8-bit programmable computer to demonstrate how a hierarchy of macro blocks can easily manage large designs.  This version also includes several new features and performance improvements.

1-29-13 Version 4.5.4  LDD SIM/SIM - Added LS273 8-bit register part.  Added Search tool for Output window.  Corrected minor bug that affected Macro circuit zooming.

1-16-13 Version 4.5.3  LDD SIM/SIM - Corrected several minor bugs that affected Macro circuit zooming.

1-02-13 Version 4.5.2  LDD SIM/SIM/SYN - Added a Signal Probe display to support the Simulation Timing analysis.  By clicking on any signal waveform in the Output section, the logic state of the signal is described on a tic-by-tic basis.  For signal groups, such as A(0:3), hexadecimal values are converted to decimal.

12-04-12 Version 4.5.1  LDD/SIM - Replaced "Expand MSI" checkbox with a "Zoom In/Out" control to enable step-by-step zooming of Macro blocks.   Corrected bug with ROM/ROM4 parts in Macro blocks.

11-01-12 Version 4.5  LDD - Expanded Macro Block capability to include all part types: primitive, MSI or Macro.   Macro blocks can now be highly complex functions; for example, an entire design - such as a small computer - can now be contained in one macro block.

10-29-12 Version 4.4.4  LDD/SIM - Added 256x1 and 256x4 read-only memory parts.   LDD/SIM - Combined Example folders.

9-27-12 Version 4.4.3  LDD/SIM - Added 256x1 and 256x4 read-write memory parts.   LDD Macro Block mode - Improved part name error checks.

9-06-12 Version 4.4.2  LDD/SIM/SYN - Removed the need of a "dummy" netlist input for the Oscillator parts.   LDD Macro Block mode - Increased input-error checking and corrected several minor bugs.

8-30-12 Version 4.4.1  Corrected startup bug which sometimes causes SimpleSolver to be hidden behind other windows.  Added Macro example file "Serial Input 32-bit NL.txt".

8-29-12 Version 4.4  LDD/SIM - Added LDD Macro Block mode which enables the user to create custom MSI parts.

7-18-12 Version 4.3.8  LDD/SIM - Added oscillator part.  LDD - Corrected several minor edit bugs.

7-10-12 Version 4.3.7  LDD/SIM/SYN - Enhanced flip-flop initialization algorithm.  LDD/SIM - Increased maximum number of Output signals and Compare Words from 4 to 50.

5-31-12 Version 4.3.6  LDD/SIM - Increased speed of flip-flop initialization for large circuits.  LDD SIM - Corrected Options bug.   ALL - added graphic symbols for Logic Parts Data.

5-16-12 Version 4.3.5  LDD/SIM - Increased Output signals and Compare Words from 1 to 4. Updated name-group Help documentation.  LDD - Enabled Drag-Drop.

4-04-12 Version 4.3.4  LDD/SIM/SYN - Added name-group option with hexadecimal formatting.  Corrected minor bug with Graphic Timing display of spikes.  LDD SIM/SIM - Increased input signal limit to 50 signals.

3-12-12 Version 4.3.3  LDD/SIM - Circuit layout is much faster and takes less memory.  Added (3) MSI logic parts: 54LS164, 54LS181, 54LS193.

2-28-12 Version 4.3.2  LDD/SIM - Corrected drawing layout bug with MSI circuits.  Added (2) new MSI logic parts: 54LS148, 54LS194.

2-21-12 Version 4.3.1  LDD/SIM - Add Help file for Logic Parts Data.  Add (3) new MSI logic parts: 54LS138, 54LS153, 54LS157.

2-13-12 Version 4.3  LDD/SIM - Increased primitive part limit to 1000 parts. Created a library for complex MSI parts. Added (4) new logic parts: J-K flip-flop, 54LS74, 54LS151, 54LS163.

1-26-12 Version 4.2.1  LDD Edit Inputs - logic gate inputs can be added or deleted (from 2-10 inputs), and D flip-flop inputs can range from 2-4.

1-11-12 Version 4.2  LDD SIM Waveform - fixed minor bug.  LDD/SIM/SYN - refined comparison word checks.  PERM - clarified input-number/range error messages. ALL - updated Help files & Help/Credits.

12-14-11 Version 4.1.9  LDD Simulation - changed Edit Simulation button to separate Options & Waveforms buttons.  LDD Waveform edit - added a toolbar to supplement the menu bar, added an Apply button and enhanced input error checks.  LDD/SIM/SYN - updated Help files.

12-07-11 Version 4.1.8  Logic Simulator - added spike/oscillation (h,l,u,o) logic states and enabled logic-gate propagation of all (9) states.   LDD SIM - enhanced waveform-edit error checks.

11-14-11 Version 4.1.7  Logic Simulator - enabled r/f logic states.   All tools - corrected drop-down box bug.

10-31-11 Version 4.1.6  PERM - added 10/50/250 MB Storage Limit options.   LDD Waveform Edit - added Edit/View menu bar.

10-20-11 Version 4.1.5  LDD - improved input error checks.   LDD SIM - fill short waveform words with "x"

10-05-11 Version 4.1.4  LDD/SIM/SYN - increased xor/xnor input range to 2-10 and updated Help files.   LDD - improved input error checks.

9-27-11 Version 4.1.3  LDD - added Edit/Design Comments menu & updated LDD & SIM Help file.   Corrected (2) output signal name bugs.

9-21-11 Version 4.1.2  ALL - added "New Version Available" indicator, updated Help files.   LDD - Output signal can be re-named.

9-14-11 Version 4.1.1  BEQ - variables are now case-sensitive only for Operator Format 3.   LDD - fixed View/Zoom bug.   Tutorial - Updated to include LDD.

9-08-11 Version 4.1  All - Updated Help files & converted to HTML format.   LDD/SIM/SYN - minor updates for consistency.  PERM - changed numeric input labels to "Base Number" & "Permutation Digits"

8-31-11 Version 4.0.1  Installer - added CAUTION note to clarify installation path restrictions

8-30-11 Version 4.0  Logic Design Draw - a new tool.   Simulation/Synthesis - numerous enhancements for compatibility with Logic Design Draw and the LDD Simulator.

7-12-11 Version 3.3.1  All - updated Help/Credits and Help/About.    Boolean - fixed several minor bugs and improved input-equation error checks.  Boolean, Logic Design, Simulation - added gate/flip-flop graphics.

6-20-11 Version 3.3  All - Major  update to the software structure to facilitate future expansion, minor bug corrections.   Boolean - much faster minimization for simple equations.  Simulation/Synthesis - now fully independent, can be run concurrently.  Simulation input limit increased to 20.

5-19-11 Version 3.2.1   All - minor updates.   Boolean - Boolean operations for large input equations or truth tables are faster.   Web site - added Change History to Download page

4-19-11 Version 3.2   Boolean/Permutation/Random Number - minor updates.  Boolean minimization is much faster and more thorough

4-03-11 Version 3.1.10   Boolean/Permutation/Random - GUI updates.   All - added Help, Credits menu item

3-02-11 Version 3.1.9   All - Corrected horizontal scroll and zoom 100% problems

3-02-11 Version 3.1.8   Simulation - added Netlist checkbox.   Simulation/Synthesis - minor bug fixes

2-22-11 Version 3.1.7   Simulation parts limit increased to 100, Synthesis increased to 31. Added 54LS163A Counter.txt simulation example (38 parts)

2-10-11 Version 3.1.6   All - added PrintDialog.AllowSomePages and updated Print toolbar dialog.

2-01-11 Version 3.1.5   Simulation/Synthesis - corrected Boolean Eqn bug.   Web site - added tool Help Files

1-11-11 Version 3.1.4   All - save/restore tool window positions.   Boolean - minor bug fixes

1-03-11 Version 3.1.3   Boolean - added Align Minterms checkbox, made PLA Minimize checkbox always available

12-08-10 Version 3.1.2   Boolean - Sort Names/Terms now sorts both names and minterms

12-06-10 Version 3.1.1  Web site change only

12-06-10 Version 3.1   Installer - Install to C:\SimpleSolver vs. C:\Program Files so that Example files are Vista/Win7 directly accessible

12-02-10 Version 3.0.1   Boolean - minor enhancements

11-23-10 Version 3.0   Web site - Download file includes a full software Installer with System Requirements, Desktop icon and Uninstall capability.    Boolean - truth tables can be specified with multiple outputs

10-25-10 Version 2.8.4   All - added View, Zoom 100%.   Simulation/Synthesis - minor bug fixes

10-07-10 Version 2.8.3   Boolean/Permutation/Random - run time speedups.   All - added animal logos to distinguish each tool

9-17-10 Version 2.8.2   All - minor updates

9-09-10 Version 2.8.1   Permutation/Random - added MapFile path to window header.   All - added animal logos to Help files

8-31-10 Version 2.8   Web site - added animal logos.   Synthesis - minor updates

8-09-10 Version 2.7.1   Simulator - added buf part.   Boolean/Simulation/Synthesis - added Recent_Docs list to file menu

7-12-10 Version 2.7   Simulation/Synthesis - numerous changes to improve compatibility between the two tools.   Boolean/Simulation/Synthesis - added INS/OVR status indicator

6-23-10 Version 2.6.4   All - added Go button titles.  Fixed SaveAs minor bug

6-15-10 Version 2.6.3   minor bug fix

6-15-10 Version 2.6.2   All - updated tutorial.   Synthesis - Glitch option enhancement

6-09-10 Version 2.6.1   All - changes to Window title to make more room for file name & path.   Synthesis - minor changes

5-18-10 Version 2.6   Boolean - changed truth table fill from "x" to "0" for Espresso compatibility

5-05-10 Version 2.5   Random - increased limits: Quantity to 99,999, Lowest to -99,999, Highest to 99,999.   Synthesis - minor logic improvements

3-30-10 Version 2.4.5   All - corrected initial directory settings of Examples and File-Open menus

3-19-10 Version 2.4.4   Synthesis - added Netlist checkbox.   Permutation/Random - added File/Select MapFile menu

3-15-10 Version 2.4.3   All - minor GUI improvements.   Boolean/Simulation/Synthesis - add capability to drag and drop a file onto input window

2-27-10 Version 2.4.2   All - added PowerPoint tutorial.   Synthesis - minor bug fixes

2-19-10 Version 2.4.1   Boolean - added truth table unspecified & redundant-row checks

2-15-10 Version 2.4   Boolean - added SYN Spec checkbox.   Simulation/Synthesis - increased signal waveform limit to 1000 characters

1-02-10 Version 2.3   Boolean - added truth table input capability, minor bug fixes

12-01-09 Version 2.2.9   Boolean - moved function variable to RH column of truth table.   All - added Ln-Col numbers to Status strip

10-28-09 Version 2.2.8   Simulation/Synthesis - increased signal waveform limit to 512 characters, minor bug fixes

10-09-09 Version 2.2.7   Simulation/Synthesis - numerous enhancements

9-16-09 Version 2.2.6   Simulation/Synthesis - increased input limit from 8 to 10 for compatibility with Boolean

8-11-09 Version 2.2.5   Permutation - added Space & Align checkboxes.   Simulation/Synthesis - added HW/SW modes

7-09-09 Version 2.2.4   Boolean - added '|' Or operator.   Permutation/Simulation/Synthesis - GUI enhancements

6-01-09 Version 2.2.3   Random - added WordWrap checkbox.   Boolean - updated Help file.  Web site - increased from (1) to (9) pages

3-26-09 Version 2.2.2   Boolean/Simulation/Synthesis - reformatted upper windows to provide more working space

2-16-09 Version 2.2.1   All - added Help, Support (mailto:) menu item

1-14-09 Version 2.2   All - added toolbars, miscellaneous updates

12-09-08 Version 2.1.2   All - added result Focus to enable (1) click (vs. 2) response

12-09-08 Version 2.1.1   All - corrected SS Overview Select All.  Boolean - minor bug fixes

11-19-08 Version 2.1.0   Simulation/Synthesis - added Boolean Eqn checkbox.   All - added link to Web site

10-30-08 Version 2.0.3   minor updates

10-18-08 Version 2.0.2   All - added Read-only protection, Edit Undo/Redo

10-06-08 Version 2.0.1   Synthesis - corrected minor circuit-plot bug.   Boolean/Simulation/Synthesis - enabled Tab entry

9-23-08 Version 2.0   added Simulation tool.   Simulation/Synthesis - fixed minor startup bug

8-20-08 Version 1.1.1   Boolean/Synthesis - fixed Date/Time bug per Regional setting.   Synthesis - increased Parts limit from 15 to 25.    Permutation/Random - added Map Names option

7-01-08 Version 1.0    available at Download.com

6-10-08 Version 1.0    available at initial Web site