Simple Solver HOME
SimpleSolver Change Log Summary
1-23-22 Version 5.5.5
- minor update
8-07-21 Version 5.5.4
- PERM - add (3) examples: Scrabble, Scramble, UnScramble
- update two Help files
- fix several minor bugs
1-19-21 Version 5.5.3
- add Help file and Examples to describe Metastable oscillation and design recommendations
- add "Metastability" to LDD, SIM, SYN Help menus
- add "Metastable-Sync filter.txt" to LDD, SIM, SYN examples
- update LDD and SIM DFF Setup Error.txt example for clarity
- fix several minor bugs
8-07-20 Version 5.5.2
- update SSolver to TLS 1.2 to eliminate Version check error message
6-04-20 Version 5.5.1
- enable hyperlinks in Input and Comment windows
- add Hyperlink syntax to Boolean Help
- fix several minor bugs
4-29-20 Version 5.5
- fix minor bug
- All tools: update Help files
1-08-19 Version 5.4.9
- All tools: update Help files
- Boolean tool: Increase the maximum number of variables to 30
12-05-18 Version 5.4.8
- All tools: correct minor bug
- Boolean tool:
- faster Minimization
- reduced memory usage
- Boolean Help update
7-04-18 Version 5.4.7
- add Security update to correct Version Check bug
- fix minor Permutation Generator bug
4-09-18 Version 5.4.6
- minor update
2-13-18 Version 5.4.5
- add Font size and Tab size Options
- update Help files
1-16-18 Version 5.4.4
- PERM - add Custom Storage Limit with range of 1-2147 MBytes
- add Shortcut setting to all SSolver Icon ToolTips
10-03-17 Version 5.4.3
- add Options menu
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