1. Move project from Google Code to GitHub (https://github.com/pkimpel/retro-b5500/). Update links and help pages; convert wiki pages to GitHub's MarkDown format.
2. Implement emulator-hosted memory dump to a tape image that can be saved and input into the B5500 DUMP/ANALYZE utility for analysis. Activated by clicking the NOT READY button on the Console.
3. Fix bad assignments to Processor X register in arithmetic ops (affected only SyllableDebugger script).
4. Remove IndexedDB.openDatabase() version parameter so the B5500ColdLoader and tools/ scripts will work in non-Firefox browsers.
5. Add a "?db" query string parameter to the tools/scripts so these scripts can open disk subsystems other than B5500DiskUnit.
6. Correct pre-allocated file locations and ESU card in tools/COLDSTART-XIII.card.
7. Implement new double-click mechanism to copy and clear the contents of card punch, datacom terminal, and line-printer output areas to a temporary window for subsequent copying or saving.
8. Correct handling of Ctrl-B (break), Ctrl-D (disconnect request), Ctrl-E (WRU), Ctrl-L (clear input buffer), and Ctrl-Q (alternate end-of-message) in B5500DatacomUnit.
9. Implement reporting of Model IB (slow, bulk) disk in B5500DiskUnit readInterrogate.
10. Implement detection of browser IndexedDB quota-exceeded errors in B5500DiskUnit (primarily to handle the fixed 2GB limit for off-line storage in Firefox).
11. Correct problem when line printer exhausted paper and FORM FEED triple-click did not clear the condition.
12. Eliminate BOT marker sensed in result for tape drive Write Interrogate operation -- Mark XIII and XV MCPs treat this as an error and will not purge blank tapes because of it.
13. Fix double-click of SPO INPUT REQUEST button either sending a duplicate interrupt to the system or the second click moving focus from the SPO input box.
14. Further tuning of delay-deviation adjustment mechanism in B5500SetCallback.js.
15. Reinstate ability of SPO to wrap long outputs to additional lines (apparently lost with new SPO input mechanism in 1.00).
16. Commit preliminary COOLSTART-XIII.card and MCPTAPEDISK-XIII.card decks.
1. Implement new system and disk subsystem configuration mechanism.
2. Implement initial Mark-XIII Cold Start card deck for use with new configuration interfaces.
3. Deprecate use of B5500ColdLoader.html script (replaced by new configuration mechanism and Cold Start deck), but correct and enhance IndexedDB database detection, creation, and deletion in it.
4. Implement "Application Cache" support to allow emulator to run off-line in a browser.
5. Implement web-font support and update all UIs to use DejaVu Sans and DejaVu Sans Mono from downloaded .woff or .ttf font files.
6. Rework some code in Processor OPDC, DESC, and indexDescriptor routines, attempting to resolve Flag Bit errors (issue #23). This appears to result in some improvement, but we still see them occasionally under load.
7. Line Printer:
- Implement new line printer driver with more realistic UI and operator controls.
- Implement Algol Glyphs option to render special Algol characters in Unicode.
- Implement support for optional "greenbar" shading on the "paper".
8. SPO:
- Redesign SPO driver to accept input from a text <input> element instead of capturing keystrokes directly from the window or "paper" <iframe>. This was done to allow input from tablet and mobile devices that will not pop up a keyboard unless an input-like element has the focus.
- Implement Unicode Algol Glyphs support on output.
- Intelligently resize "paper" area when SPO window is resized.
- Accept "_" as a substitute for "~" as end-of-message on input.
9. Card Punch:
- Implement Unicode Algol Glyphs support on output.
- Implement stacker-full annunciators in UI.
10. Card Reader:
- Implement Unicode Algol Glyphs support on input.
- Accept "_" as a substitute for "~" on input.
11. Disk:
- Adapt B5500DiskUnit driver to new configuration mechanism.
- Implement support for Model-IB (slow) disk and non-DFX disk storage configurations; support up to 20 EUs.
- Implement check for DKA readiness in cc.load() if not doing card-load-select.
12. Datacom:
- Rework datacom driver keystroke handling for compatibility with Google Chrome.
- Correct typo (line 437) in B5500DatacomUnit reported by Peter Grootswagers (issue #28).
13. Magnetic Tape:
- Implement more granular tape reel animation in B5500MagTapeDrive.
- Open the tape loader window on top of its device window.
14. Correct color of NOT READY lamps in peripheral device UIs; convert <progress> bars to <meter> elements.
15. More intelligently resize peripheral UI controls when their window is resized.
16. Implement lamp test during power-on in B5500Console.
17. Illuminate NOT READY light on Console at power-on if certain minimum configuration requirements are not met.
18. Set all HTML <meta> Content-Type character sets to UTF-8 (were ISO-8859-1); correct problem with FireFox requiring the character set to be specified within the first 1024 characters of an HTML file.
19. Clean up and refactor CSS style sheets
20. Split Javascript code out from B5500Console.html to new B5500Console.js.
21. Refactor common UI routines into webUI\B5500Util.js.
22. Move images and fonts to new webUI/resources directory; rearrange files in webUI/tool, tools, tests, source directories of repo.
23. Make significant wiki updates to document the new features in this release.
1. Enable (finally!) functioning of P2, the second processor, in CentralControl and Processor.
2. Fix bugs in Character Mode syllables FAD, FSU: initial compare of operands was alphanumeric instead of numeric.
3. Fix bugs in Character Mode syllables TRN, TRZ, TBN: non-boundary destination words were not being fetched into the B register.
4. Enable configuration of additional tape drives (up to the maximum of 16).
5. Implement new flip-flop latching mechanism in CentralControl for use by B5500Console.
6. Optimize clearing of interrupts in Central Control.
7. Implement preliminary mechanism to allow P2 to be added to the configuration temporarily without altering B5500SystemConfiguration.js.
8. Implement new average slack and delay algorithms in Processor.schedule().
9. Optimize some Character Mode syllables by substituting local variables for "this" properties.
10. Fix bugs in Processor single-precision divide syllables leaving the stack in an incorrect state after a divide by zero in Control State.
11. Further minor tweaks to performance throttling.
12. Optimize references to this.cc in Processor.run().
13. Minor improvements to B5500MagTapeDrive: eliminate oscillation at load point, improve timing of rewind operations.
14. Implement build-release.cmd script to generate emulator release archive files.
15. Commit initial Mark-XVI TSSINT transcription from Fausto Saporito.
1. Initial implementation of a datacom terminal.
2. Initial implementation (read-only) of magnetic tape drives.
3. Further work towards getting P2 to function (but not working yet).
4. Allow device driver classes to be optionally included in the global UI script.
5. Fix callback arguments handling in SetCallback.
6. Decrease width of SPO window slightly.
7. Improve trapping and printing of SPO keystrokes, based on datacom implementation.
8. Minor performance tuning improvements.
9. Dump raw header words in octal in tools/B5500DiskDirList.html script.
10. New wiki pages and several updates to existing ones.
2. Implement new setCallback() mechanism to wrap setTimeout() and setImmediate().
2. Minor change to P2 management; remove context-bound callbacks.
3. Reduce window size and font size for peripheral UIs.
4. Implement <label> for file names on ColdLoader Load table.
5. Correct placement and color of buttons on Console and SPO.
6. Minor wiki updates for UI changes.
7. Rework SPO implementation to eliminate ".that" properties, implement setCallback(), and fix long-standing bugs that caused flaky operation.
2. Debug Processor for multi-processor operation (not working yet).
3. Further refinements to Processor.schedule() and throttling management.
4. Correct Processor fetch of Initiate Control Word for IP1 and IP2.
5. Enable second Disk File Control Unit (DKB) -- works.
6. Fix minor P1 bug in cc.clearInterrupt().
7. Reset file selector control in B5500CardReader to allow same deck to be reloaded under Google Chrome.
8. Fix (finally) creation of SYSTEM/LOG and DIRCTRY/DISK in B5500ColdLoader.
9. Implement tools/B5500DiskDirFixer.html and tools/B5500DiskSystemLogFixer.html utilities to correct bad directory entries due to improper log creation in B5500ColdLoader.
10. Correct tools/LOG-MAKER.job to create SYSTEM/LOG on systems that do not have one.
11. Do not output zero-length lines (mem inhibit) with zero spacing in B5500DummyPrinter.
12. Implement separate setTimeout() tokens for input and output in B5500SPOUnit.
13. Additional de-anonymization of functions.
2. Change name of CentralCentrol bit() method to bitTest().
3. Correct length of data sent to printer by IOUnit if I/O descriptor has a zero length.
4. Implement Processor.isP1 property to optimize testing for Processor 1 vs 2.
5. Implement ability to delete the IndexedDB database for the disk subsystem in ColdLoader.
6. Implement "purist" mode in B5500Console to suppress display of emulator's extra annunciators.
7. Correct behavior of Input Request and Ready controls in SPOUnit.
2. Inhibit peripheral device windows from being closed while emulator is active.
3. Shut down peripheral devices and close their windows as part of cc.powerOff().
4. Add shut-down code to peripheral drivers.
5. Ensure SPO is ready in cc.load().
6. Enable emulator version display on B5500Console.
7. Clear DummyPrinter window when it is double-clicked (finally got this working).
8. Fix problem with "/" not accepted by SPO input in Google Chrome.
9. Commit ESPOL binary card loader image.
10. Fix problem with intensity levels in B5500Console NORMAL/CONTROL lights.
11. Attempt to enable emulator and utilities for Safari-style IndexedDB.
2. Implement differential read vs. write memory cycle timing (2us vs 4us).
3. Implement setImmediate() instead of SetTimeout() for I/O forking in IOUnit.
4. Time I/Os from initiation in IOUnit instead of peripheral device driver.
5. Accumulate Control and Normal state clocks separately for use in UI displays.
6. Rework Processor.schedule() delay management for use with setImmediate()
7. Accumulate average processor delay delta for use in UI displays.
8. Enable third I/O unit and all eight memory modules in B5500SystemConfiguration.
9. Clone B5500LibMaintDir.html from B5500LibMaintMapper.html to list files on a tape image.
10. Implement multiple-file selection in B5500CardReader; fix markup for Firefox 22.
11. Implement more granular Control/Normal State light intensity and PA Delay delta in B5500Console.
12. Attempt (again) to fix creation of SYSTEM/LOG file in B5500ColdLoader.
13. Create tools/LOG-MAKER.job deck to create SYSTEM/LOG on a running emulator instance.
2. Change time-slicing algorithm in Processor and implement Denicola's setImmediate() shim.
3. Find and fix normalization/rounding bugs in Processor.singlePrecisionAdd and .singlePrecisionMultiply.
4. Rework Processor.doublePrecisionAdd, but it's still not right.
5. Move read interval timer details from Processor to CentralControl.
6. Implement more centralized process halt in CentralControl and Processor.
7. CardReader:
a. Fix bug when adding decks to input hopper if previous deck did not end with a line delimiter.
b. Allow "?" characters as valid if not in column 1.
c. "Upgrade" from 800 to 1400 cards/minute.
8. DummyLinePrinter:
a. Attempt to implement double-click as a way to clear the output window (but doesn't work yet).
b. "Upgrade" from 800 to 1040 lines per minute (B329 model).
9. SPOUnit:
a. Tweak paper scrolling behavior.
b. Rework handling of ESC/BS/Enter keys; allow Input Request while SPO is busy with output.
10. Set AUTOPRNT option by default in B5500ColdLoader.
2. Implement interrupt and device status latching in B5500CentralControl to support better UI display.
3. Implement B5500CardPunch device.
4. Implement preliminary and experimental B5500DummyPrinter device; correct printer I/O initiation in IOUnit.
5. Correct the way that Printer Finished interrupts are handled in IOUnit and CentralControl.
6. Implement Card Load Select in B5500Console and B5500SyllableDebugger.
7. Fix lack of presence-bit detection in return ops for returned values.
8. Redesign B5500CardReader UI to show last two cards read; change method of emptying the input hopper.
9. Set CHECK option and rework SYSTEM/LOG initialization in B5500ColdLoader.html.
10. Centralize system memory cycle time setting; change from 6us to 4us memory cycle time.
11. Increase Processor timeslice to 16ms and rework Processor.schedule() internals for more accurate performance throttling in browsers with poor setTimeout() granularity.
12. Reduce Processor syllable overhead from 2 cycles to 1.
13. Change B5500SPOUnit method of output to "paper" to work better in Google Chrome.
14. Make documentation and debugging enhancements in B5500IOUnit.
15. Release initial test website HTML and Unisys license PDF.
16. Commit Mark XVI DCMCP transcription as of 2013-06-21.
2. Fix (we hope) the nasty problem that was causing Invalid Address out of COM5 after large compiles -- bug in MSCW/MSFF tracing in Processor.exitSubroutine().
3. Implement ability to do a hardware load without initiating P1 in CentralControl (used by SyllableDebugger).
4. De-anonymize object prototype method functions in Processor as an aid when using JS debuggers.
5. Rework storeForInterrupt() and initiate() in Processor.
6. Replace bitmask "AND"s with power-of-two "MOD"s in many places in Processor.
7. Replace many bit(), fieldIsolate(), fieldInsert() calls with mod/div expressions in Processor.
8. Fix a problem existing normalization when an Integer Overflow occurs in Integer Store syllables.
9. Fix missing and superfluous break statements in Processor.run() switch statements.
10. Fix incorrect C-register restoration in Character Mode RCA syllable.
11. Correct test for continuity bit in Processor PRL syllable coding.
12. Correct missing "this." in Processor BRT syllable coding.
13. Change way that delayTime and Processor.procSlack is computed in Processor.run().
14. Correct BCL translation bug and directory EOF detection in B5500ColdLoader.
15. Attempt to initialize SYSTEM/LOG in B5500ColdLoader (not working yet).
16. Implement new retro-B5500-Logo.png.
17. Implement Hardware Load button in SyllableDebugger.
18. Release tools/B5500DiskDirList.html utility.
19. Release tools/B5500DiskFileList.html utility with PBD file special formattring.
20. Restrict directory complement to EU0 in B5500ColdLoader.html.
21. Miscellaneous improvements to comments and cosmetics.
2. Insert initial interface code for LinePrinter in IOUnit.
3. Implement initial I/O and interrupt display in B5500Console.css.
4. Integrate Nigel's patch to deal with pesky "/" (Quick Find) behavior in SPOUnit for Firefox.
5. Fix DiskUnit to signal interrupt on completion of disk check operation and properly return BIC zeroes for never-written segments.
6. Move B5500ColdLoader and B5500SyllableDebugger into root of webUI/ directory.
7. Fix several problems in ColdLoader's initialization of directory and MCP structures on disk.
8. Commit Mark-XVI DCMCP transcription as of 2013-04-10.
